JP-7855768-B2 - Access point, communication method, and integrated circuit

Inventors

• チトラカール ロジャン
• ホァン レイ
• 浦部 嘉夫

Assignees

• パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ

Dates

Publication Date

20260508

Application Date

20250625

Priority Date

20190704

Claims (10)

1. A circuit that generates one trigger frame, A transmitter that transmits one trigger frame to a first station during a transmission opportunity (TXOP), It is equipped with, The aforementioned trigger frame includes information about a plurality of data frames that the first station transmits to the second station at different points in time within the TXOP, The aforementioned transmitter does not transmit a trigger frame in the aforementioned part of the TXOP. Access point.
2. The second station is a peer station that is linked to the first station via a peer-to-peer link. The access point according to claim 1.
3. The first station receives a block ack frame from the second station within the portion of the TXOP. The access point according to claim 1.
4. The aforementioned plurality of data frames are transmitted at a transmission power lower than a predetermined transmission power level. The access point according to claim 1.
5. The trigger frame contains only one User Info field addressed to the individual station. The access point according to claim 1.
6. The trigger frame includes a User Info field addressed to the first station, and the User Info field includes an AID 12 subfield in which the AID of the first station is set. The access point according to claim 1.
7. Some of the aforementioned data frames are transmitted without the preceding trigger frame. The access point according to claim 1.
8. The aforementioned plurality of data frames are transmitted by scheduled transmission. The access point according to claim 1.
9. A process that generates one trigger frame, The process includes transmitting the one trigger frame to the first station during a transmission opportunity (TXOP), Includes, The aforementioned trigger frame includes information about a plurality of data frames that the first station transmits to the second station at different points in time within the TXOP, A step in which a trigger frame is not transmitted in a part of the TXOP, A communication method that includes this.
10. The process of generating a single trigger frame, During a transmission opportunity (TXOP), the process involves transmitting the one trigger frame to the first station. Control, The aforementioned trigger frame includes information about a plurality of data frames that the first station transmits to the second station at different points in time within the TXOP, In the aforementioned TXOP, the process involves not transmitting a trigger frame within a certain part of the TXOP. An integrated circuit that controls something.

Description

This disclosure relates to communication equipment and communication methods for extended direct link communication, and more particularly to communication equipment and communication methods for extended direct link communication in restricted bands such as the 6 GHz band. In recent years, the FCC (Federal Communications Commission) has opened up the 6GHz band for unlicensed use. The 6GHz band will play a crucial role in achieving throughput targets in future wireless standards such as IEEE 802.11ax (HE), IEEE 802.11be (EHT), and 3GPP's 5G standard. To protect existing users, the FCC has proposed the following rules in its latest NPRM (Notice for Proposed Rulemaking): The U-NII-5 and U-NII-7 subbands are heavily used by point-to-point microwave links, including links that must maintain a high level of availability. Therefore, in these subbands, only "standard power access points (APs)" using the power levels of the U-NII-1 and U-NII-3 bands can operate on frequencies determined by the AFC (Automated Frequency Coordination) system. U-NII stands for Unlicensed National Information Infrastructure. The U-NII-6 and U-NII-8 subbands are to be used by mobile stations in locations where the location of existing receivers cannot be easily determined from existing databases and where the use of AFC is difficult. Therefore, these subbands may only be permitted for indoor "low-power access points" using lower power levels in the U-NII-2 band. Client devices may be permitted to operate across the entire 6 GHz band under the control of either a standard-power AP or a low-power AP. However, communication equipment and methods for direct-link communication in the 6GHz band have not been discussed to date. In particular, in the U-NII-5 and U-NII-7 subbands, it is unclear how devices involved in direct-link communication may operate, as devices may not be directly connected to the AFC system. Therefore, there is a need for communication apparatus and methods that provide a feasible technical solution for extended direct-link communication in the 6 GHz band. Furthermore, other desirable features and characteristics will become apparent from the following detailed description and the appended claims, in conjunction with the accompanying drawings and the background of this disclosure. Non-limiting embodiments of this disclosure contribute to providing communication devices and communication methods for extended direct link communication. According to a first embodiment of this disclosure, a communication device is provided configured to wirelessly communicate with an access point (AP) on a first channel, comprising: a circuit that, during operation, generates a channel use permission request frame containing information indicating the communication device, another communication device, and a second channel different from the first channel; a transmitter that, during operation, transmits the generated channel use permission request frame to the AP to request permission from the AP to use the second channel for direct link communication with the other communication device; and a receiver that, during operation, receives a channel use permission response frame from the AP granting permission to use the second channel, and further configured to communicate with the other communication device on a direct link on the second channel after receiving the channel use permission response frame. According to a second embodiment of this disclosure, a communication device configured to wirelessly communicate with an access point (AP) is provided, comprising: a circuit that, during operation, generates a TDLS (Tunneled Direct Link Setup) RTS (Request To Send) frame containing information indicating another communication device; a transmitter that, during operation, transmits the generated TDLS RTS frame to the AP to request a TXOP (Transmit Opportunity) for TDLS transmission with the other communication device; and a receiver that, during operation, receives a TDLS CTS (Clear To Send) frame from the AP, wherein the transmitter is further configured to, after receiving the TDLS CTS frame, transmit one or more data frames over the TDLS direct link to the other communication device within the requested TXOP. According to a third embodiment of this disclosure, an access point (AP) configured to wirelessly communicate with a communication device on a first channel is provided, comprising: a receiver that, during operation, receives a channel use permission request frame from the communication device requesting the use of a second channel different from the first channel for direct link communication with other communication devices; a circuit configured, during operation, to determine from a frequency adjustment database whether the second channel may be used by the communication device and the other communication devices after receiving the channel use permission request frame, and to generate a channel use permission response frame containing i