Wake-up method, station, and access point
AssigneeHuawei Technologies Co., Ltd.
InventorYuchen Guo
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Abstract
This application provides a wake-up method, a station, and an access point. The method is performed in a communications system. The communications system can include an access point (AP) and at least one station (STA). The AP includes a wake-up transceiver (WUR) and a main transceiver. The method can include determining, by a first STA, that the AP is in a sleep state, where when the AP is in the sleep state, the main transceiver of the AP is in an off state. The method can also include transmitting, by the first STA, a wake-up frame to the WUR of the AP, where the wake-up frame triggers the WUR of the AP to wake up the main transceiver of the AP. Therefore, an uplink data transmission latency can be reduced.
Claims17
A wake-up method, performed in a communications system, the communications system comprising an access point (AP) and at least one station (STA), the AP comprising a wake-up transceiver (WUR) and a main transceiver, and the method comprising:
- determining, by a first STA, that the AP is in a sleep state, wherein when the AP is in the sleep state, the main transceiver of the AP is in an off state;
- transmitting, by the first STA, a wake-up frame to the WUR of the AP, wherein the wake-up frame triggers the WUR of the AP to wake up the main transceiver of the AP;
- transmitting, by the first STA, a first capability information frame to the main transceiver of the AP, wherein the first capability information frame carries first indication information, and the first indication information indicates whether the first STA has a capability of transmitting the wake-up frame;
- and
- receiving, by the first STA, a second capability information frame transmitted by the AP using the main transceiver of the AP, wherein the second capability information frame carries second indication information and/or third indication information, the second indication information indicates whether the AP comprises the WUR, and the third indication information indicates whether the AP can be woken up by the first STA.
A station (STA) of a communications system, the communications system comprising an access point (AP) and at least one STA, the at least one STA comprising the STA, the AP comprising a first wake-up transceiver (WUR) and a first main transceiver, and wherein the STA comprises:
- a processor configured to determine that the AP is currently in a sleep state, wherein when the AP is in the sleep state, the first main transceiver of the AP is in an off state;
- a second WUR, coupled with the processor, configured to transmit a wake-up frame to the first WUR of the AP, wherein the wake-up frame triggers the first WUR of the AP to wake up the first main transceiver of the AP;
- and
- transmit a first capability information frame to the first main transceiver of the AP, wherein the first capability information frame carries first indication information, and the first indication information indicates whether the STA has a capability of transmitting the wake-up frame;
- and
- receive a second capability information frame transmitted by the AP using the first main transceiver of the AP, wherein the second capability information frame carries second indication information and/or third indication information, the second indication information indicates whether the AP comprises the WUR, and the third indication information indicates whether the AP can be woken up by the STA.
An access point (AP) of a communications system, wherein the communications system comprises the AP and at least one station (STA), and the AP comprises:
- a processor;
- a wake-up transceiver, coupled with the processor, (WUR) configured to receive a wake-up frame transmitted by a first STA, wherein the wake-up frame triggers the WUR to wake up a main transceiver of the AP, and the WUR is further configured to wake up the main transceiver based on the wake-up frame;
- wherein the main transceiver is configured to:
- receive a first capability information frame transmitted by the first STA, wherein the first capability information frame carries first indication information, and the first indication information indicates whether the first STA has a capability of transmitting the wake-up frame, and
- transmit a second capability information frame to the first STA, wherein the second capability information frame carries second indication information and/or third indication information, the second indication information indicates whether the AP comprises the WUR, and the third indication information indicates whether the AP can be woken up by the first STA, wherein the second capability information frame further carries a wake-up identifier, and the wake-up identifier identifies the WUR of the AP, and wherein the wake-up frame carries the wake-up identifier.
Dependencies are inferred from the claim text.