CN-122002467-A - Method, device, equipment and system for saving energy of access point in WLAN

Abstract

The application provides a method, a device, equipment and a system for saving energy of an access point in WLAN, belonging to the technical field of communication. The method is applied to the first access point in the WLAN, the first access point decides the energy-saving mechanism of other access points in the WLAN and instructs the other access points to save energy, so that the power consumption of the access points in the WLAN can be reduced.

Inventors

• Xiao Houfei
• ZHENG ZONGZHAO
• ZHANG XIAOLONG

Assignees

• 华为技术有限公司

Dates

Publication Date

20260508

Application Date

20241104

Claims (20)

1. 1. A method for power saving of an access point in a wireless local area network WLAN, applied to a first access point, the first access point being connected to at least one other access point, the method comprising: And sending a first energy saving control message to a second access point in the at least one other access point, wherein the first energy saving control message is used for indicating the second access point to enter a first energy saving state.
2. 2. The method of claim 1, wherein the first energy saving control message comprises one or more of a frequency band, a basic service set identifier, or a service set identifier of the second access point.
3. 3. The method according to claim 1 or 2, wherein the first energy saving control message comprises energy saving level information of the second access point.
4. 4. The method of claim 3, wherein the power level information comprises an identification of a power level, or wherein the power level information comprises one or more of a power level policy of a WLAN network, a power level policy of a functional module, or a power level policy of a peripheral interface.
5. 5. The method of claim 4, wherein the power saving policy of the WLAN network comprises one or more of spatial stream, bandwidth, air interface transmit power, or modulation and coding scheme.
6. 6. The method of claim 4 or 5, wherein the power saving policy of the functional module comprises a power saving policy of one or more of a central processor, an ethernet module, an optical module, or a system-on-chip related module.
7. 7. The method according to any of claims 4 to 6, wherein the power saving policies of the peripheral interface comprise power saving policies of a universal serial bus interface and/or a telephony interface.
8. 8. The method according to any one of claims 1 to 7, further comprising: And sending an energy-saving preparation indication message to the second access point, wherein the energy-saving preparation indication message is used for indicating the second access point to enter an energy-saving preparation state.
9. 9. The method according to any one of claims 1 to 8, wherein the first access point is connected to the at least one other access point by means of an optical fiber.
10. 10. The method of claim 9, wherein the first access point is a main optical network unit in a fiber-to-room system and the at least one other access point is a sub-optical network unit in the fiber-to-room system.
11. 11. A method for power saving of an access point in a wireless local area network WLAN, the method being applied to a second access point, the second access point being connected to a first access point, the method comprising: Receiving a first energy saving control message sent by the first access point, wherein the first energy saving control message is used for indicating the second access point to enter a first energy saving state; an operation to enter the first power saving state is performed.
12. 12. The method of claim 11, wherein the first energy saving control message comprises one or more of a frequency band, a basic service set identifier, or a service set identifier of the second access point.
13. 13. The method according to claim 11 or 12, wherein the first energy saving control message comprises energy saving level information of the second access point.
14. 14. The method of claim 13, wherein the power level information comprises an identification of a power level, or wherein the power level information comprises one or more of a power level policy of a WLAN network, a power level policy of a functional module, or a power level policy of a peripheral interface.
15. 15. The method of claim 14, wherein the power saving policy of the WLAN network comprises one or more of spatial stream, bandwidth, air interface transmit power, or modulation and coding scheme.
16. 16. The method of claim 14 or 15, wherein the power saving policy of the functional module comprises a power saving policy of one or more of a central processor, an ethernet module, an optical module, or a system-on-chip related module.
17. 17. The method according to any of claims 14 to 16, wherein the power saving policies of the peripheral interface comprise power saving policies of a universal serial bus interface and/or a telephony interface.
18. 18. The method according to any of claims 11 to 17, further comprising, prior to receiving the first energy saving control message sent by the first access point And receiving an energy-saving preparation indication message sent by the first access point, wherein the energy-saving preparation indication message is used for indicating the second access point to enter an energy-saving preparation state.
19. 19. The method according to any one of claims 11 to 18, wherein the first access point is connected to the at least one other access point by means of an optical fibre.
20. 20. The method of claim 19, wherein the first access point is a main optical network unit in a fiber-to-room system and the at least one other access point is a sub-optical network unit in the fiber-to-room system.

Description

Method, device, equipment and system for saving energy of access point in WLAN Technical Field The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a system for energy saving of an access point in a WLAN. Background Wireless local area networks (wireless local area network, WLAN) are becoming more and more popular, and WLAN includes Stations (STAs) and Access Points (APs), and energy saving is focused on energy saving of the stations at present, so as to prolong the standby time of the stations. For example, the access point periodically broadcasts a beacon (beacon) frame, the beacon frame includes indication information of whether each station has downlink data, the station only needs to wake up periodically at the beacon frame time point, receives the beacon frame, judges whether the downlink data exists, if so, enters a working state, and if not, continues to sleep. As the functions of the access point are gradually increased, the power consumption problem thereof becomes prominent, and thus, how to reduce the power consumption of the access point is important. Disclosure of Invention The application provides a method, a device, equipment and a system for saving energy of an access point in a WLAN, which can reduce the power consumption of the access point in the WLAN. The technical scheme adopted is as follows: In a first aspect, the present application provides a method for saving power of an access point in a WLAN, the method being applied to a first access point, the first access point being connected to at least one other access point, the method comprising sending a first power saving control message to a second access point of the at least one other access point, wherein the first power saving control message is used to instruct the second access point to enter a first power saving state. In the scheme shown in the application, in the WLAN, a first access point is connected with at least one other access point, and the first access point is used as a power saving decision maker to instruct a second access point in the at least one other access point to enter a power saving state. In this way, the access point can also perform energy saving processing, so that the power consumption of the access point can be reduced. In an alternative manner, the first energy saving control message includes one or more of a frequency band of the second access point, a Basic Service Set Identifier (BSSID) or a service set identifier (SERVICE SET IDENTIFIER SSID). In the second access point, the radio frequency resources may be divided according to one or more of frequency bands, basic service set identifiers or service set identifiers, so that energy-saving control can be performed on different radio frequency resources. In an alternative way, the first energy saving control message includes energy saving level information of the second access point. In this way, the second access point may be caused to have multiple energy saving states, with different energy saving level information indicating different energy saving states. In an alternative manner, the energy saving level information includes an identification of the energy saving level, or the energy saving level information includes one or more of an energy saving policy of the WLAN network, an energy saving policy of the functional module, or an energy saving policy of the peripheral interface. Therefore, when the energy-saving level mark is used, the content of the energy-saving level mark is less, so that transmission resources are saved, and when the energy-saving strategy is used, the second access point can directly acquire the energy-saving strategy without inquiring, so that processing resources are saved. In an alternative manner, the power saving policy of the WLAN network includes one or more of spatial stream, bandwidth, air interface transmit power, or modulation and coding schemes. Wherein, under the condition of limited flow and same air interface transmitting power, the smaller the number of the space flows, the lower the power consumption. The bandwidth is also called bandwidth, and indicates the bandwidth occupied by transmitting data, and in the case of a certain traffic size, the smaller the occupied bandwidth is, the lower the power consumption is. The air interface transmitting power refers to the power when air interface transmitting is adopted, and the smaller the air interface transmitting power is, the lower the power consumption is. In the case of a certain traffic size, the modulation and coding scheme is also called a modulation and coding strategy (modulation and coding scheme, MCS), and the lower the complexity of the modulation and coding scheme, the lower the power consumption. Thus, different energy saving magnitudes can be achieved by adjusting these parameters. In an alternative approach, the power saving policy of the functional module inclu