CN108156648B - Method and device for transmitting wake-up frame - Google Patents
Method and device for transmitting wake-up frame Download PDFInfo
- Publication number
- CN108156648B CN108156648B CN201611097428.8A CN201611097428A CN108156648B CN 108156648 B CN108156648 B CN 108156648B CN 201611097428 A CN201611097428 A CN 201611097428A CN 108156648 B CN108156648 B CN 108156648B
- Authority
- CN
- China
- Prior art keywords
- frame
- station
- response
- receiving station
- transceiver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The application provides a method for transmitting wake-up frames, wherein a sending station generates and sends a response frame, the response frame comprises a response type field, and the response type field indicates the state of the sending station. By adopting the method, the receiving station knows the state of the sending station, so that the receiving station can adopt different response strategies according to different states of the sending station.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting an awake frame.
Background
In the communication scenario of the internet of things, the network nodes are usually battery-powered, which has a very high requirement for low energy consumption. The energy consumption can be greatly reduced through a sleep mechanism, and the longer the sleep cycle is, the better the energy-saving effect is. However, when the sleep period is too long, the transmission delay is increased. A conflict arises if a system requires both low power consumption and low latency.
A new working Group TG WUR (English: Task Group Wakeup Radio) is established by the standard organization of WLAN (English: Wireless Local Area Network, Chinese: Wireless Local Area Network), and the working Group simultaneously meets the requirements of low energy consumption and low time delay by adding a Wakeup transceiver (WUR for short) in WLAN equipment (including an access point AP and a station STA).
The technical principle is to add a simple signal receiving device called WUR in addition to the Main link (Main radio) of the WLAN device. The WUR employs a narrower bandwidth and a simple modulation scheme than the main link, and thus its power consumption is much lower than that of the main link. When the station has no data to receive, the main link is turned off for power saving and only the WUR is turned on. In addition, after receiving a Wakeup frame or a Wakeup Packet (WUP for short) via the WUR, the WLAN device with the closed main link wakes up the main link, and completes normal data transceiving via the main link.
The transmission flow of the wake-up frame or wake-up packet in the prior art is shown in fig. 1. The STA wakes up a main link of the STA after receiving the WUP sent by the AP, then the station sends a PS-Poll energy-saving inquiry frame to the AP through the main link, the AP replies an ACK confirmation frame to the STA after receiving the PS-Poll frame, and then the AP sends data to the STA through the main link.
However, the above scheme does not provide for handling of wake frame transmission exceptions, such as: the STA erroneously sends a PS-Poll to the ap due to a false alarm, and the ap discards a packet (english: data packet), so that no data is sent to the STA after receiving the PS-Poll. The station cannot acquire the abnormal conditions in real time, and thus cannot better save power.
Disclosure of Invention
In view of the above, a main object of the present application is to provide a method and an apparatus for transmitting an awake frame, which solve the problem of abnormal transmission of the awake frame.
In a first aspect, an embodiment of the present application provides a method for transmitting an awake frame, where the method is applied in a communication system. The communication system comprises a sending station and a receiving station, wherein the receiving station comprises a wakeup transceiver WUR and a main transceiver. Specifically, the main execution body of the method is a sending station, and the method includes:
the transmitting station generating a response frame, the response frame including a response type field, the response type field indicating a state of the transmitting station; and the sending station sends the response frame.
By the above method, the receiving station knows the state of the transmitting station. The receiving station can adopt different response strategies according to different states of the sending station.
In a possible implementation manner, before the sending station generates the response frame, the method further includes: the sending station sends a wakeup frame, and the wakeup frame indicates the receiving station to start the main transceiver; the transmitting station receives a notification frame, the notification frame being transmitted by the receiving station, the notification frame indicating that a primary transceiver of the receiving station has been turned on.
In one possible implementation, the response type field includes at least one type information:
first type information, the first type information instructing the sending station to send the wakeup frame, the sending station receiving the notification frame, and the sending station having data to send to the receiving station;
second type information indicating that the transmitting station does not transmit the wakeup frame, and that the transmitting station receives the notification frame, and that the transmitting station does not transmit data to the receiving station;
third type information, which indicates that the sending station sends the wakeup frame, and the sending station receives the notification frame, and the sending station has no data to send to the receiving station;
a fourth type of information indicating that the transmitting station does not transmit the wakeup frame, and that the transmitting station has data to transmit to the receiving station.
In one possible implementation, the response type field includes at least one type information:
fifth type information indicating that the sending station has data to send to the receiving station;
a sixth type of information indicating that the sending station has no data to send to the receiving station.
In one possible implementation, the response type field includes at least one type information:
a seventh type of information indicating that the transmitting station has transmitted the wakeup frame;
eighth type information indicating that the transmitting station does not transmit the wakeup frame.
In a possible implementation manner, after the sending station receives the notification frame and before the sending station generates the response frame, the method further includes: the transmitting station transmits an acknowledgement frame.
In one possible implementation, the response frame is a control frame of a medium access control MAC layer.
In one possible implementation, the response type field of the response frame is carried by a high efficiency aggregation control field HE a-control.
In a second aspect, an embodiment of the present application provides an apparatus for transmitting a wake-up frame, where the apparatus includes:
a baseband processor to generate a response frame, the response frame including a response type field, the response type field indicating a state of the apparatus; a primary transceiver for transmitting the response frame.
By adopting the device for transmitting the wake-up frame, the receiving station adopts different response strategies according to different states of the device for transmitting the wake-up frame.
In a possible implementation manner, before the baseband processor generates the response frame, the main transceiver is configured to send a wakeup frame, where the wakeup frame instructs a receiving station to turn on its own main transceiver; the primary transceiver is further configured to receive a notification frame, where the notification frame is sent by the receiving station, and the notification frame indicates that the primary transceiver of the receiving station is turned on.
In one possible implementation, the response type field includes at least one type information:
first type information, the first type information instructing the primary transceiver to send the wake-up frame, and the primary transceiver receiving the notification frame, and the primary transceiver having data to send to the receiving station;
a second type of information indicating that the primary transceiver did not send the wakeup frame, that the primary transceiver received the notification frame, and that no data was sent by the primary transceiver to the receiving station;
a third type of information, the third type of information instructing the primary transceiver to send the wake-up frame, and the primary transceiver receives the notification frame, and the primary transceiver has no data to send to the receiving station;
a fourth type of information indicating that the primary transceiver is not transmitting the wakeup frame and that the primary transceiver has data to send to the receiving station.
In one possible implementation, the response type field includes at least one type information:
a fifth type of information indicating that the primary transceiver has data to send to the receiving station;
a sixth type of information indicating that the primary transceiver has no data to send to the receiving station.
In one possible implementation, the response type field includes at least one type information:
a seventh type of information indicating that the primary transceiver has transmitted the wake-up frame;
an eighth type of information indicating that the primary transceiver is not to transmit the wakeup frame.
In one possible implementation, after the primary transceiver receives the notification frame, the primary transceiver transmits an acknowledgement frame before the baseband processor generates a response frame.
In one possible implementation, the response frame is a control frame of a medium access control MAC layer.
In one possible implementation, the response type field of the response frame is carried by a high efficiency aggregation control field HE a-control.
An embodiment of the present application provides a method for transmitting a wakeup frame, in which a sending station generates and sends a response frame, and the response frame includes a response type field indicating a state of the sending station. The application also provides a corresponding device for transmitting the wake-up frame, and the receiving station knows the state of the sending station by the method. The receiving station can adopt different response strategies according to different states of the sending station.
Drawings
Fig. 1 is a flow chart of transmission of a wake-up frame.
Fig. 2 is an application scenario diagram of the present application.
Fig. 3 is a simplified interaction diagram of a sending segment device and a receiving end device according to the present application.
Fig. 4 is a flowchart of a method of embodiment 1 of the present application.
Fig. 5 is a frame structure diagram according to embodiment 1 of the present application.
Fig. 6 is another frame structure diagram according to embodiment 1 of the present application.
Fig. 7 is a structural diagram of an association request unit in embodiment 2 of the present application.
Fig. 8 is a structural diagram of an association request unit according to embodiment 2 of the present application.
Fig. 9 is another structural diagram of an association request unit according to embodiment 2 of the present application.
Fig. 10 is a block diagram of a physical device according to embodiment 3 of the present application.
Fig. 11 is a block diagram of a physical device according to embodiment 4 of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
The wake-up method of the embodiment of the present application may be applied to a Wireless Local Area Network (WLAN for short), and may also be applied to other various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) System, a Long Term Evolution (LTE) System, a LTE Frequency Division Duplex (FDD) System, a LTE Time Division Duplex (TDD) System, a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Communication (WiMAX) Communication System, and a future 5G Communication System.
Fig. 2 is a schematic diagram of an application scenario of an embodiment of the present application. The WLAN shown in fig. 2 includes a transmitting end device (e.g., an Access Point (AP) shown in fig. 2) and a receiving end device (e.g., a Station (STA) shown in fig. 2), the AP communicates with a plurality of STAs, it is to be understood that the number of APs and STAs shown in fig. 2 is merely exemplary, and any number of APs and STAs may be included in the WLAN.
Fig. 3 is a schematic diagram of interaction between a sending end device and a receiving end device in a conventional low power consumption scheme. The receiving end device includes a main transceiver 2 and a Wake-up Radio (WUR for short), and the transmitting end device includes a main transceiver 1. When the main transceiver 2 of the receiving end device enters the dormancy state, the WUR with low power consumption wakes up to start working. If the sending end device needs to communicate with the receiving end device, the sending end device firstly sends a wakeup frame to the WUR of the receiving end device through the WUR channel. After the WUR correctly receives the wake-up frame sent to itself, it wakes up the host transceiver 2 of the receiving end device. The transmitting end device communicates with the waking main transceiver 2 via the main transceiver 1. When the main transceiver 2 and the sending end device complete communication, the state can enter a sleep state, and the WUR of the receiving end device continues to listen whether there is a wakeup frame sent to itself, so as to wake up the main transceiver 2 when receiving the wakeup frame.
The technology adopts the WUR with low power consumption to replace the host transceiver 2 to monitor the channel when the receiving end equipment is Idle, so that the energy waste of the receiving end equipment in Idle triggering can be effectively reduced. WURs generally have low complexity in terms of circuit configuration, frame (e.g., wake-up frame) structure design, and the like in order to achieve low power consumption. The energy consumption of the WUR monitoring state is about 0.1-1% of that of the host transceiver 2, namely less than 100 uW.
It should be appreciated that the host transceiver of a sink device can only be woken up by the WUR corresponding to that sink device. The primary transceiver may also be generally called a primary transceiver module or a primary radio frequency module, a primary radio frequency. Without being specifically described herein, the host transceiver and the WUR both refer to the host transceiver and the WUR of the same sink device. The sending end device may or may not include a WUR, and when the sending end device does not include a WUR, its host transceiver may also be considered a legacy transceiver.
It will be appreciated that the purpose of waking up the transceiver is to put the main transceiver in an ON (i.e., awake state). Thus, "waking up the primary transceiver" includes the following cases: the primary transceiver is originally in an OFF (OFF), i.e., dormant state, "wake up the primary transceiver" means to turn the primary transceiver ON; the primary transceiver is originally in the ON state and "wake-up of the primary transceiver" refers to maintaining the primary transceiver in the ON state.
It is also understood that WUR off may also be described as "WUR going to sleep state or power save state" and WUR on may also be described as "WUR going to awake state or active state".
It should also be understood that the same concept applies to the wake-up frame and the wake-up packet in this application.
Example 1
The embodiment 1 of the present application provides a method for transmitting a wakeup frame, which is applied to a communication system, where the communication system includes a sending station and a receiving station, and the receiving station includes a wakeup transceiver WUR and a host transceiver. The method can be applied to access points and stations, for example: AP and STA1-3 in fig. 2. Fig. 4 is a flow chart of the method, and the specific steps are as follows:
step 410: a transmitting station generates a response frame, the response frame including a response type field, the response type field indicating a status of the transmitting station.
Step 420: and the sending station sends the response frame.
It should be noted that, before the sending station generates the response frame, the method further includes:
the sending station sends a wakeup frame, and the wakeup frame indicates the receiving station to start the main transceiver;
the transmitting station receives a notification frame, the notification frame being transmitted by the receiving station, the notification frame indicating that a primary transceiver of the receiving station has been turned on.
The specific flow of the sending station sending the wakeup frame and the sending station receiving the notification frame is described in detail in fig. 3.
Optionally, after the sending station receives the notification frame, before the sending station generates the response frame, the method further includes:
the transmitting station transmits an acknowledgement frame.
Further optionally, the definition of the response type field in step 410 includes the following several embodiments:
embodiment 1: the response type field includes at least four types.
Wherein the first type information indicates that the transmitting station transmits the wakeup frame, and the transmitting station has data to transmit to the receiving station.
Second type information indicating that the transmitting station does not transmit the wakeup frame and that the transmitting station does not transmit data to the receiving station.
A third type of information, which indicates that the sending station sends the wakeup frame, and that the sending station has no data to send to the receiving station.
A fourth type of information indicating that the transmitting station does not transmit the wakeup frame, and that the transmitting station has data to transmit to the receiving station.
It should be explained that the first type information indicates that the sending station successfully received the notification frame, and sent the wake-up frame for the notification frame to the receiving station, and there is data to be sent to the receiving station. After receiving the response frame carrying the first type information, the receiving station keeps the main transceiver in an open state for receiving data to be transmitted subsequently by the transmitting station.
It should be noted that the second type of information indicates that the sending station successfully receives the notification frame, but has not previously sent the wakeup frame to the receiving station, which indicates that the receiving station takes the wakeup frame of another station as its own wakeup frame when receiving the wakeup frame. Or, the receiving station is attacked maliciously, and an attacker identifies the sending station as the receiving station of the current notification frame in the wake-up frame. After receiving the response frame carrying the second type information, the receiving station knows that the receiving station does not buffer data at the transmitting station transmitting the notification frame, and at this time, the WUR receiving station can turn off the host transceiver to save energy.
It should be explained that the third type information indicates that the sending station successfully received the notification frame, and once sent the wake-up frame for the notification frame to the receiving station, but no data is sent to the receiving station at this time. There may be various reasons for this, for example, because the packet has been dropped beyond a time limit at that time. The receiving station may turn off the primary transceiver after receiving the response frame carrying the third type of information to conserve energy.
It should be noted that the fourth type information indicates that the transmitting station has not transmitted the wakeup frame to the receiving station, but that there is data to be transmitted to the receiving station. The receiving station may turn on the primary transceiver after receiving the response frame carrying the fourth type of information.
Embodiment 2: the response type field includes at least two types.
And fifth type information indicating that the sending station has data to send to the receiving station.
A sixth type of information indicating that the sending station has no data to send to the receiving station.
It should be explained that the fifth type information indicates that the transmitting station has data to transmit to the receiving station. The receiving station should then keep the main transceiver on for receiving data that the transmitting station will subsequently transmit.
It should be explained that the sixth type of information indicates that the transmitting station has no data to transmit to the receiving station. The receiving station may then turn off the primary transceiver to save energy.
Embodiment 3: the response type field includes at least two types.
A seventh type of information indicating that the transmitting station has transmitted the wakeup frame.
Eighth type information indicating that the transmitting station does not transmit the wakeup frame.
It should be noted that the seventh type of information indicates that the transmitting station has sent the wake-up frame to the receiving station before sending the response frame.
It should be noted that the eighth type information indicates that the transmitting station does not send the wake-up frame to the receiving station before sending the response frame.
Note that, in this embodiment, the operation of the receiving station is as shown in fig. 4.
Step 420: the receiving station receives the response frame, wherein the format of the response frame received by the receiving station is the same as the format of the response frame transmitted by the transmitting station in step 410.
Step 430: the receiving station parses the response frame.
In particular, as can be seen from the foregoing, the response type field of the response frame includes at least three embodiments.
With embodiment 1, wherein when the receiving station determines that the response type field of the response frame is the first type information or the fourth type information, the receiving station keeps the primary transceiver in the on state. And when the receiving station determines that the response type field of the response frame is the second type information or the third type information, the receiving station turns off the main transceiver for saving energy.
With embodiment 2, wherein when the receiving station determines that the response type field of the response frame is the fifth type information, the receiving station keeps the main transceiver in the on state. When the receiving station determines that the response type field of the response frame is the sixth type information, the receiving station turns off the main transceiver for saving energy.
With embodiment 3, wherein when the receiving station determines that the response type field of the response frame is the seventh type information, the receiving station keeps the main transceiver in the on state. When the receiving station determines that the response type field of the response frame is the eighth type information, the receiving station turns off the main transceiver for saving energy.
Optionally, one implementation manner of the response frame is a control frame of a medium access control MAC layer, and the response frame carries a response type field. The frame structure is shown in fig. 5, wherein in the frame control field, the Type field is set to be the control Type (Type ═ 01), and the subtype field is set to be one of the current reservation modes (0000 ~ 0011), and is used for indicating that the Type of the frame is a response frame. The receiving address is set as the MAC address of the receiving station, and the transmitting address is set as the MAC address of the transmitting station. The response type field includes at least 1 byte.
For embodiment 1 of the response type field of the response frame, modes 0 to 3 indicate the above four response types, respectively, and the remaining modes remain.
In embodiment 2 of the response type field of the response frame, modes 0 to 1 indicate the two response types, respectively, and the remaining modes remain.
In embodiment 3 of the response type field of the response frame, modes 0 to 1 indicate the two response types, respectively, and the remaining modes remain.
Optionally, another implementation manner of the response frame is that a response type field of the response frame is carried by a high efficiency aggregation control field HE a-control.
The structure of HE A-Control is shown in FIG. 6. Wherein each Control field is divided into two fields of a Control identifier (Control ID) and Control information (Control information). The existing standard already defines five kinds of Control information (Control ID 0-4) in the following table 1, the response type is to add a new kind of Control information, the Control ID of the response type is one of 5-15, the setting in table 1 is 5, and the rest Control identifiers are reserved. The length of the control information is 8 bits, 7 values (0 to 7) are used to represent response types one to seven, and the remaining values are reserved values.
TABLE 1
This embodiment provides a method for transmitting a wake-up frame, in which a sending station generates and sends a response frame, where the response frame includes a response type field, and the response type field indicates a state of the sending station. By the above method, the receiving station knows the state of the transmitting station. The receiving station can adopt different response strategies according to different states of the sending station.
Example 2
The embodiment 2 of the present application provides a method for transmitting a wakeup frame, which is applied to a communication system, where the communication system includes a sending station and a receiving station, and the receiving station includes a wakeup transceiver WUR and a host transceiver. The method can be applied to access points and stations, for example: AP and STA1-3 in fig. 2. The method comprises the following specific steps:
step 701: the receiving station receives a wakeup frame, wherein the wakeup frame indicates the receiving station to start the main transceiver;
step 702: the receiving station generates a request frame, wherein the request frame comprises an association identification AID request field;
step 703: and the receiving station sends the request frame.
The reason why the receiving station generates and transmits the request frame in steps 702 and 703 is that if the receiving station is a non-AP station and receives the false wake-up frame multiple times, the receiving station may transmit the request frame to the AP through the primary transceiver, and the AP is required to assign a new AID to itself, thereby reducing the probability of false detection or attack. The error detection means that the sending end sends a frame containing a bit sequence A, and the receiving end decodes the frame into a bit sequence B, but the check is correct. When applying for updating the AID, the AP needs to be informed of the reason for applying for replacing the AID, so it is necessary to carry a reason field in the request frame for indicating the reason for replacing the AID.
In particular, the AID request field includes at least two embodiments. The format of the AID Request field may be modified on the basis of the AID Request element. The structure of the AID Request element is shown in fig. 7 below.
Specifically, in embodiment 1, the modification of the AID request field is as shown in fig. 8. Reserve bits (B6-B7) in the AID Request Mode field are indicated. For example, the B6 is modified to be a "False wake frame received" (False WUP received) bit, when B6 is 0, this indicates that the receiving station did not receive the False wake frame when receiving the wake frame, i.e., the transmitting station transmitted the wake frame before the receiving station received the wake frame; when B6 is 1, it represents that the receiving station receives a false wake-up frame at the time of receiving the wake-up frame, i.e., the transmitting station does not transmit the wake-up frame before the receiving station receives the wake-up frame.
when the AID request field includes the application reason field, a state of the application reason field indicates that the transmitting station does not transmit a wakeup frame before the receiving station receives the wakeup frame.
Specifically, in embodiment 2, the modification of the AID request field is as shown in fig. 9. An application Reason (Request person) field is added in the AID Request element to indicate the Reason for applying for replacing AID. One of the reasons for this application is that a false wake-up frame is received at the time the wake-up frame is received. In addition, a Request response Present field is set as a presence or absence of a Reserve bit in the AID Request Mode field to indicate whether the Request response field is Present, and when the Request response Present field is set to 0, the Request response field is not Present, and when the Request response Present field is set to 1, the Request response field is Present.
The embodiment provides a method for transmitting a wake-up frame, in which a receiving station receives a wake-up frame, and the wake-up frame instructs the receiving station to turn on a main transceiver; the receiving station generates and transmits a request frame that includes an association identification AID request field. By the method, after the receiving station receives the false wake-up frame for many times, the receiving station can correctly receive and transmit data by sending the request frame for replacing AID.
Example 3
Embodiment 3 of the present Application provides a device applied in a communication system, the physical structure of the device is shown in fig. 10, the device may be an AP or STA1-STA3 shown in fig. 2, and the device may also be an Application Specific Integrated Circuit (ASIC) or a chip for implementing related functions. The apparatus 1000 includes a processor 1010, a memory 1020, a baseband processor 1030, a main transceiver 1040, an antenna 1050, a bus 1060, and a wake-up transceiver 1070.
In particular, the operation of the apparatus 1000 is controlled by a processor 1010, which may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array, or other programmable logic device. Memory 1020 may include read-only memory and random access memory, and provide instructions and data to processor 1010, and a portion of memory 1020 may also include non-volatile random access memory (NVRAM).
The baseband processor 1030 is configured to generate a baseband signal (e.g., a frame or a data packet or a PPDU or a response frame, a wakeup frame, and a notification frame in this application), or parse the received baseband signal to obtain useful information, where the baseband processor includes a channel encoder and a modulator, and the channel encoder can improve robustness of the signal, overcome interference and fading in a wireless propagation environment, and reduce errors generated by transmission. The modulator can select a suitable signal modulation mode according to the wireless propagation environment.
The main transceiver 1040 includes a transmitting circuit and a receiving circuit, the transmitting circuit is configured to perform an up-conversion operation on a baseband signal generated by the baseband processor 1030 to obtain a high-frequency carrier signal, the high-frequency carrier signal is transmitted through the antenna 1050, and the receiving circuit performs a down-conversion operation on a high-frequency signal received by the antenna 1050 to obtain a low-frequency baseband signal. Where the number of antennas 1050 is one or more. The apparatus 1000 may also include a wake-up transceiver 1070 that may receive a wake-up frame.
The various components of device 1000 are coupled together by a bus 1060, where bus system 1060 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are designated as the bus system 1060 in the figure. It should be noted that the above description of the access point structure can be applied to the following embodiments.
A baseband processor 1030 configured to generate a response frame including a response type field indicating a status of the apparatus.
A primary transceiver 1040 for transmitting the response frame.
Optionally, before the baseband processor generates the response frame, the main transceiver further sends a wakeup frame, where the wakeup frame instructs the receiving station to start its own main transceiver; the primary transceiver is also configured to receive a notification frame, which is sent by the receiving station, indicating that the receiving station's own primary transceiver has been turned on.
Optionally, the response type field in the response frame generated by the baseband processor includes at least three embodiments.
Embodiment 1: the response type field contains at least one of the following information:
first type information instructing the primary transceiver to transmit the wake-up frame, and the primary transceiver receives the notification frame, and the primary transceiver has data to send to the receiving station.
A second type of information indicating that the primary transceiver did not transmit the wakeup frame, that the primary transceiver received the notification frame, and that the primary transceiver did not send data to the receiving station.
A third type of information, the third type of information instructing the primary transceiver to send the wake-up frame, and the primary transceiver receives the notification frame, and the primary transceiver has no data to send to the receiving station;
a fourth type of information indicating that the primary transceiver is not transmitting the wakeup frame and that the primary transceiver has data to send to the receiving station.
Embodiment 2: the response type field contains at least one of the following information:
fifth type information indicating that the primary transceiver has data to send to the receiving station.
A sixth type of information indicating that the primary transceiver has no data to send to the receiving station.
Embodiment 3: the response type field contains at least one of the following information:
a seventh type of information indicating that the primary transceiver has transmitted the wake-up frame.
An eighth type of information indicating that the primary transceiver is not to transmit the wakeup frame.
Optionally, after the primary transceiver receives the notification frame, the primary transceiver transmits an acknowledgement frame before the baseband processor generates a response frame.
Optionally, the embodiments of the response frame include at least the following two.
Embodiment 1: the response frame is a control frame of a Medium Access Control (MAC) layer.
Embodiment 2: the response type field of the response frame is carried by the high efficiency aggregation control field HE a-control.
Two embodiments of the response frame are described in detail in embodiment 1, and are not described again.
For the receiving station in this embodiment, the receiving station includes:
a primary transceiver for receiving a response frame, wherein the format of the response frame is the same as the format of the response frame in step 410 of embodiment 1.
And the baseband processor is used for analyzing the response frame.
Specifically, the response type field of the response frame includes at least three embodiments.
With embodiment 1, wherein when the baseband processor of the receiving station determines that the response type field of the response frame is the first type information or the fourth type information, the receiving station keeps the main transceiver in the on state. When the baseband processor of the receiving station determines that the response type field of the response frame is the second type information or the third type information, the receiving station turns off the main transceiver for saving energy.
For embodiment 2, wherein when the baseband processor of the receiving station determines that the response type field of the response frame is the fifth type information, the receiving station keeps the main transceiver in the on state. When the baseband processor of the receiving station determines that the response type field of the response frame is the sixth type information, the receiving station turns off the main transceiver for saving energy.
For embodiment 3, wherein when the baseband processor of the receiving station determines that the response type field of the response frame is the seventh type information, the receiving station keeps the main transceiver in the on state. When the baseband processor of the receiving station determines that the response type field of the response frame is the eighth type information, the receiving station turns off the main transceiver for saving energy.
The embodiment provides an apparatus for wake-up frame transmission, which includes a baseband processor and a main transceiver, wherein the baseband processor generates a response frame, the response frame includes a response type field, the response type field indicates a status of a transmitting station, and the main transceiver is used for transmitting the response frame. By adopting the device for transmitting the wake-up frame, the receiving station adopts different response strategies according to different states of the device for transmitting the wake-up frame.
Example 4
It should be noted that each component of the apparatus 1100 has a similar function to that of the apparatus 1000, and is not described again.
A wake-up transceiver 1170 for receiving a wake-up frame instructing the device to turn on its main transceiver.
Baseband processor 1130: for generating a request frame, the request frame including an association identification, AID, request field.
The main transceiver 1140: the receiving station transmits the request frame.
In particular, the AID request field includes at least two embodiments.
When the AID request field contains the application reason field, a state of the application reason field indicates that the transmitting station does not transmit the wakeup frame before the wakeup transceiver receives the wakeup frame.
It should be noted that two implementation manners of the AID request field have been explained in detail in embodiment 2, and are not described again.
The embodiment provides a device for transmitting a wake-up frame, which includes a wake-up transceiver, a main transceiver and a baseband processor, wherein the wake-up transceiver receives the wake-up frame, and the wake-up frame instructs the device to turn on its main transceiver; the baseband processor generates a request frame that includes an association identification, AID, request field, which the primary transceiver transmits. By adopting the device, when the awakening transceiver receives the false awakening frame for multiple times, the main transceiver is used for replacing AID by sending the request frame, so that correct data receiving and sending are realized.
Through the above description of the embodiments, those skilled in the art can clearly understand that the present application can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be substantially implemented or a part of the technical solutions contributing to the prior art may be embodied in the form of a software product, where the computer software product is stored in a readable storage medium, such as a floppy disk, a hard disk, or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods described in the embodiments of the present application.
Claims (13)
1. A method of wake-up frame transmission, the method being applied in a communication system comprising a sending station and a receiving station, the receiving station comprising a wake-up transceiver WUR and a host transceiver, the method comprising:
the transmitting station receiving a notification frame, the notification frame being transmitted by the receiving station, the notification frame indicating that a primary transceiver of the receiving station has been turned on;
the transmitting station generating a response frame, the response frame including a response type field, the response type field indicating a state of the transmitting station;
the sending station sends the response frame;
the response type field includes one of the following types of information:
a seventh type of information indicating that the transmitting station has transmitted a wakeup frame;
eighth type information indicating that the transmitting station does not transmit a wakeup frame;
wherein the wakeup frame instructs the receiving station to turn on the primary transceiver.
2. The method of claim 1, wherein before the transmitting station generates the response frame, the method further comprises:
the sending station sends a wakeup frame, and the wakeup frame indicates the receiving station to start the main transceiver;
the transmitting station receives a notification frame, the notification frame being transmitted by the receiving station, the notification frame indicating that a primary transceiver of the receiving station has been turned on.
3. The method according to claim 1 or 2, wherein the response type field comprises one of the following types of information:
first type information, the first type information instructing the sending station to send the wakeup frame, the sending station receiving the notification frame, and the sending station having data to send to the receiving station;
second type information indicating that the transmitting station does not transmit the wakeup frame, and that the transmitting station receives the notification frame, and that the transmitting station does not transmit data to the receiving station;
third type information, which indicates that the sending station sends the wakeup frame, and the sending station receives the notification frame, and the sending station has no data to send to the receiving station;
a fourth type of information indicating that the transmitting station does not transmit the wakeup frame, and that the transmitting station has data to transmit to the receiving station.
4. The method of claim 2, wherein after the sending station receives the notification frame and before the sending station generates the response frame, the method further comprises:
the transmitting station transmits an acknowledgement frame.
5. The method according to claim 1 or 2, wherein the response frame is a control frame of a medium access control, MAC, layer.
6. The method according to claim 1 or 2, wherein the response type field of the response frame is carried by a high efficiency aggregation control field, HE A-control.
7. An apparatus that wakes frame transmission, the apparatus comprising:
a baseband processor to generate a response frame, the response frame including a response type field, the response type field indicating a state of the apparatus;
a primary transceiver for transmitting the response frame;
before the baseband processor generates the response frame, the primary transceiver is further configured to receive a notification frame, where the notification frame is sent by the receiving station, and the notification frame indicates that the primary transceiver of the receiving station is turned on;
the response type field includes one of the following types of information:
a seventh type of information indicating that the transmitting station has transmitted a wakeup frame;
eighth type information indicating that the transmitting station does not transmit a wakeup frame;
wherein the wakeup frame instructs the receiving station to turn on the primary transceiver.
8. The apparatus of claim 7, wherein prior to the baseband processor generating the response frame,
the main transceiver is used for sending a wake-up frame, and the wake-up frame indicates a receiving station to start the main transceiver of the receiving station;
the primary transceiver is further configured to receive a notification frame, where the notification frame is sent by the receiving station, and the notification frame indicates that the primary transceiver of the receiving station is turned on.
9. The apparatus of claim 7 or 8, wherein the response type field comprises one of the following types of information:
first type information, the first type information instructing the primary transceiver to send the wake-up frame, and the primary transceiver receiving the notification frame, and the primary transceiver having data to send to the receiving station;
a second type of information indicating that the primary transceiver did not send the wakeup frame, that the primary transceiver received the notification frame, and that no data was sent by the primary transceiver to the receiving station;
a third type of information, the third type of information instructing the primary transceiver to send the wake-up frame, and the primary transceiver receives the notification frame, and the primary transceiver has no data to send to the receiving station;
a fourth type of information indicating that the primary transceiver is not transmitting the wakeup frame and that the primary transceiver has data to send to the receiving station.
10. The apparatus of claim 8, wherein the primary transceiver transmits an acknowledgement frame after receiving the announcement frame and before the baseband processor generates a response frame.
11. The apparatus according to claim 8 or 7, wherein the response frame is a control frame of a Medium Access Control (MAC) layer.
12. The apparatus of claim 8 or 7, wherein a response type field of the response frame is carried by a high efficiency aggregation control field (HE A-control).
13. A computer-readable storage medium storing instructions that, when executed by a computer, are capable of performing the method of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611097428.8A CN108156648B (en) | 2016-12-02 | 2016-12-02 | Method and device for transmitting wake-up frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611097428.8A CN108156648B (en) | 2016-12-02 | 2016-12-02 | Method and device for transmitting wake-up frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108156648A CN108156648A (en) | 2018-06-12 |
| CN108156648B true CN108156648B (en) | 2021-09-07 |
Family
ID=62470177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611097428.8A Active CN108156648B (en) | 2016-12-02 | 2016-12-02 | Method and device for transmitting wake-up frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108156648B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110072207A (en) * | 2019-04-30 | 2019-07-30 | 广东赛翼智能科技有限公司 | A kind of remote collecting device based on NB-IoT technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873679A (en) * | 2009-04-23 | 2010-10-27 | 瑞昱半导体股份有限公司 | Methods and apparatuses of network system with power saving functions |
| WO2012010676A1 (en) * | 2010-07-21 | 2012-01-26 | University College Cork - National University Of Ireland, Cork | Low power wake-up system and method for wireless body area networks |
| CN104737597A (en) * | 2012-10-24 | 2015-06-24 | 高通股份有限公司 | Method and apparatus using an ultra low power signal with scheduled power save modes |
| CN104756560A (en) * | 2012-10-24 | 2015-07-01 | 高通股份有限公司 | Near passive receivers with regular PS mode and no ULP (AP is not aware of the receiver/circuit mode) |
-
2016
- 2016-12-02 CN CN201611097428.8A patent/CN108156648B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873679A (en) * | 2009-04-23 | 2010-10-27 | 瑞昱半导体股份有限公司 | Methods and apparatuses of network system with power saving functions |
| WO2012010676A1 (en) * | 2010-07-21 | 2012-01-26 | University College Cork - National University Of Ireland, Cork | Low power wake-up system and method for wireless body area networks |
| CN104737597A (en) * | 2012-10-24 | 2015-06-24 | 高通股份有限公司 | Method and apparatus using an ultra low power signal with scheduled power save modes |
| CN104756560A (en) * | 2012-10-24 | 2015-07-01 | 高通股份有限公司 | Near passive receivers with regular PS mode and no ULP (AP is not aware of the receiver/circuit mode) |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108156648A (en) | 2018-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110636599B (en) | Implicit power management mode and state transitions | |
| JP6081504B2 (en) | System and method for low power signaling in a wireless local area network | |
| US9241307B2 (en) | Method and apparatus using an ultra low power signal with scheduled power save modes | |
| WO2018157786A1 (en) | Method and equipment for indicating downlink service data | |
| US20190253973A1 (en) | Wake-up method and device | |
| US10945203B2 (en) | Wake-up method, station, and access point | |
| WO2018192374A1 (en) | Site wake-up method and site | |
| WO2021098053A1 (en) | Power saving methods for a mobile station | |
| CN107135534B (en) | Communication method and device for wireless local area network | |
| CN107770850B (en) | Awakening method, receiving end equipment and sending end equipment | |
| WO2018089779A1 (en) | Media access control for wakeup radios | |
| CN113796039A (en) | Determining PDCCH monitoring during on-duration in energy saving mode | |
| JP7367061B2 (en) | Wake-up signal monitoring instruction | |
| US20220353813A1 (en) | Scheduling method, access point, and station | |
| CN107820305B (en) | Method and device for transmitting WUR message | |
| WO2019037119A1 (en) | Discontinuous reception method, terminal device and network device | |
| WO2019233324A1 (en) | Method for pdcch blind detection, terminal, and network-side device | |
| CN108156648B (en) | Method and device for transmitting wake-up frame | |
| WO2018233646A1 (en) | Wake-up method, access point, and station | |
| WO2020164143A1 (en) | Discontinuous reception method, terminal device and network device | |
| WO2022083418A1 (en) | Energy saving signal transmission method and apparatus | |
| CN116711392A (en) | Enhanced discontinuous reception and power saving for user equipment | |
| RU2786001C1 (en) | Wake-up signal monitoring indication | |
| WO2023123241A1 (en) | Wireless communication method, terminal device, and network device | |
| CN113826421B (en) | Method and device for activating terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |