US-12628070-B2 - Extension methods and wireless communication system

US12628070B2US 12628070 B2US12628070 B2US 12628070B2US-12628070-B2

Abstract

The present disclosure provides an extension method, applied in a wireless communication system, the wireless communication system comprises a wireless access point and a plurality of stations, to which the wireless access point is connected, wherein the following steps are performed by the wireless communication system: the wireless access point generating a trigger frame according to a self-defined user information; the wireless access point broadcasting the trigger frame to the plurality of stations through a wireless channel; the plurality of stations receiving the trigger frame and then sending an information frame to the wireless access point; wherein, the self-defined user information comprises a default state command, by which existing in the self-defined user information, there would be not necessary to wait for subsequent information frames for time saving and energy conserving.

Inventors

Yidong He
Zhaoming LI
ZUOHUI PENG

Assignees

REALTEK SEMICONDUCTOR CORP.

Dates

Publication Date: 20260512
Application Date: 20230621
Priority Date: 20220725

Claims (13)

1 . An extension method, applied in a wireless communication system, the wireless communication system comprising a wireless access point and at least one of station, to which the wireless access point being connected, the extension method comprising: generating, by the wireless access point, a trigger frame according to a self-defined user information; broadcasting, by the wireless access point, the trigger frame to the at least one of station through a wireless channel; sending, by the at least one of station, an information frame after the trigger frame is received by the at least one of station; and receiving, by the wireless access point, the information frame from the at least one of station; wherein the self-defined user information comprises a default state command for executing a corresponding action program by the at least one of station, wherein the default state command comprises one of: a next action information, a timestamp information, a buffer state report information, or a next target wake time information; wherein the step of the wireless access point inserting the self-defined user information into the trigger frame further comprises the following sub-steps: the wireless access point obtaining an association identifier in the user information field; and the wireless access point configuring the self-defined user information for the association identifier; wherein the step of the wireless access point configuring the self-defined user information for the association identifier further comprises the following sub-steps: the wireless access point obtaining a reserved code in the association identifier; and the wireless access point configuring the self-defined user information according to the reserved code wherein the reserved code is an integer code not otherwise used in the in the wireless communication, wherein the step of generating, by the wireless access point, a trigger frame according to a self-defined user information further comprises the following sub-step: the wireless access point inserting the self-defined user information into the trigger frame.
2 . The extension method according to claim 1 , wherein the step of the wireless access point inserting the self-defined user information into the trigger frame further comprises the following sub-step: the wireless access point obtaining a user information field of the trigger frame; and the wireless access point inserting the self-defined user information to be adjacent to the user information field.
3 . The extension method according to claim 1 , wherein the step of the wireless access point inserting the self-defined user information into the trigger frame further comprises the following sub-step: the wireless access point obtaining a padding information field of the trigger frame.
4 . The extension method according to claim 3 , wherein after the step of the wireless access point obtaining a padding information field of the trigger frame, then the following step is performed: the wireless access point inserting the self-defined user information into the padding information field.
5 . The extension method according to claim 3 , wherein after the step of the wireless access point obtaining a padding information field of the trigger frame, then the following step is performed: the wireless access point inserting the self-defined user information to be adjacent to the padding information field.
6 . The extension method according to claim 3 , wherein after the step of the wireless access point obtaining a padding information field of the trigger frame, then the following step is performed: the wireless access point replacing the padding information field with the self-defined user information.
7 . The extension method according to claim 1 , wherein the step of the wireless access point inserting the self-defined user information into the trigger frame further comprises the following sub-steps: the wireless access point obtaining a bitmap control and a partial virtual bitmap; and the wireless access point configuring the corresponding self-defined user information for the bitmap control and the partial virtual bitmap.
8 . The extension method according to claim 1 , wherein the extension method further comprises a station, and after the step of broadcasting, by the wireless access point, the trigger frame to the plurality of stations through a wireless channel, the at least one of station perform the following steps: the at least one of station obtaining the self-defined user information; and the at least one of station correspondingly executing an action program according to the default state command of the self-defined user information.
9 . A wireless communication system, the wireless communication system comprising a wireless access point and at least one of station, to which the wireless access point being connected, the wireless communication system comprising: the wireless access point configured to expand a trigger frame according to a self-defined user information, broadcast a trigger frame via a wireless channel, and receive at least one of information frame via the wireless channel; and the at least one of station configured to receive the trigger frame via the wireless channel and transmit the at least one of information frame after expanded trigger frame is successfully received; wherein the self-defined user information comprises a default state command for executing a corresponding action program by the at least one of station, wherein the default state command comprises one of: a next action information, a timestamp information, a buffer state report information, or a next target wake time information; wherein the wireless access point configures to obtain an association identifier in the user information field, and the wireless access point configures to configure the self-defined user information for the association identifier; wherein the wireless access point configures to obtain a reserved code in the association identifier, and the wireless access point configures the self-defined user information according to the reserved code; wherein the reserved code is an integer code not otherwise used in the in the wireless communication, wherein the wireless access point configures to insert the self-defined user information into the trigger frame to generate an extended trigger frame.
10 . The wireless communication system according to claim 9 , wherein the wireless access point inserts the self-defined user information to be adjacent to a user information field of the trigger frame.
11 . The wireless communication system according to claim 9 , wherein the wireless access point obtains a padding information field of the trigger frame, and the wireless access point inserts the self-defined user information into or adjacent to the padding information field.
12 . The wireless communication system according to claim 9 , wherein the wireless access point obtains a bitmap control and a partial virtual bitmap, and the wireless access point configures the corresponding self-defined user information for the bitmap control and the partial virtual bitmap.
13 . The wireless communication system according to claim 9 , wherein the wireless communication system is applied in the Institute of Electrical and Electronics Engineers (IEEE) 802.11ax communication technology.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims the priority benefit of Chinese Patent Application Serial Number 202210878706.2, filed on Jul. 25, 2022, the full disclosure of which is incorporated herein by reference. BACKGROUND Technical Field The present disclosure relates to the technical field of communications, particularly to an extension method and a wireless communication system. Related Art In the conventional developed wireless communication technology, which is applied in the environment of Wi-Fi 6, mainly comprises a wireless access point (AP) and a plurality of stations that performs transmission through the protocol between the wireless access point and the stations to construct a high-density wireless channel application environment. When a multi-user (MU) individually uploads frames to be sent to the wireless access point through the stations, in order to allow the wireless access point to simultaneously receive frames individually uploaded by each of the stations, the wireless access point would first send a trigger frame to each of the stations to notify that the frame can be uploaded to the wireless access point for reducing the transmission time delay and improving the transmission efficiency of a wireless channel between the wireless access point and the stations. Regarding the technology of a target wake time (TWT) of a conventional wireless channel, the transmission efficiency of the wireless channel between the wireless access point and the stations can be improved through a timestamp method. Specifically, the wireless access point could broadcast a beacon frame that comprises timestamp information. The stations could receive the beacon frame from the wireless access point and could perform a time synchronization procedure according to the timestamp information in the beacon frame to synchronize the time of the wireless access point with the time of the stations. However, since the beacon frame is sent to the stations by broadcasting that, in a complex environment, the transmission of the beacon frame would be affected so that the stations could not receive the beacon frame. So, the stations could not synchronize with the wireless access point, resulting in the risk of frame missing. Another conventional wireless channel technology is that the wireless access point puts a buffer status report information in a traffic indication message (TIM) in the beacon frame or in an end of service period (EOSP) information in a quality of service (QoS) frame for further configuring by buffer status report (BSR). So, the wireless access point could notify that there would be no frames to be transmitted to the stations, and the stations could enter sleep state to reduce power consumption. Besides, when applying the mode of next target wake time (Next TWT), which mainly puts a next target wake time information in an action frame, the wireless access point could inform the stations about the time period of the next target wake time through the next target wake time information of the action frame. However, by the BSR or Next TWT, the stations must wait to receive the traffic indication message, the end of service period information, or the next target wake time information before entering sleep mode. It would be quite time-consuming if all wake periods are required to wait to receive the traffic indication information or the end of service period information. Therefore, a further improvement for the technology of prior arts is essential. SUMMARY The embodiments of the present disclosure provide an extension method for trigger frames to save time and conserve power by inserting a self-defined user information into the trigger frame. For achieving the purpose above, the main technical solution for the present disclosure is to apply the expansion method for trigger frames to a wireless communication system, the wireless communication system comprises a wireless access point and a plurality of stations, to which the wireless access point is connected, wherein the following steps are performed by the wireless communication system: the wireless access point generating the trigger frame according to a self-defined user information;the wireless access point broadcasting the trigger frame to the plurality of stations through a wireless channel;the plurality of stations receiving the trigger frame and then sending an information frame;the wireless access point receiving the information frames from the plurality of stations; and wherein the self-defined user information comprises a default state command. Preferably, the step of “the wireless access point generating the trigger frame according to a self-defined user information” further comprises the following sub-step: the wireless access point inserting the self-defined user information into the trigger frame. Preferably, the step of “the wireless access point inserting the self-defined user information into the trigger frame” further comprise