WO2023030084A1

WO2023030084A1 - Method and device for determining quality of wake-up link, and readable storage medium

Info

Publication number: WO2023030084A1
Application number: PCT/CN2022/114135
Authority: WO
Inventors: 曲鑫; 沈晓冬; 潘学明
Original assignee: 维沃移动通信有限公司
Priority date: 2021-08-30
Filing date: 2022-08-23
Publication date: 2023-03-09
Also published as: WO2023030084A8; CN115734318A; WO2023030084A9

Abstract

The present application discloses a method and device for determining the quality of a wake-up link, and a readable storage medium, which belong to the technical field of communications. The method comprises: a terminal obtaining a wake-up link quality index; and when the relationship between the wake-up link quality index and a preset threshold meets a preset condition, determining wake-up link quality, and performing a state switching operation, the wake-up link quality index being used for determining the situation in which the terminal receives a wake-up signal from a transmit end.

Description

Method, device and readable storage medium for determining wake-up link quality

Cross References to Related Applications

This application claims priority to Chinese Patent Application No. 202111005713.3 filed in China on Aug. 30, 2021, the entire contents of which are hereby incorporated by reference.

technical field

The present application belongs to the technical field of communications, and in particular relates to a method, device and readable storage medium for determining the quality of a wake-up link.

Background technique

In the prior art, the link quality is judged by whether a link maintenance signal such as a wake-up radio (Wake-up Radio, WUR) beacon (beacon) signal and a WUR wake-up signal is received within a period of time. Carrier Sense Multiple Access (CSMA) mode competes for access, so although the signal cycle is configured, it is still impossible to accurately determine the number of beacon signals and WUR signals sent within a period of time, that is, when the access point (Access Point, AP) The failure of CSMA to compete for transmission resources and the poor link quality can lead to failure to receive the hold signal. Therefore, the method of time accumulation can only judge the link quality to a certain extent.

Contents of the invention

Embodiments of the present application provide a method, device, and readable storage medium for determining the quality of a wake-up link, which can solve the problem that the link quality cannot be effectively judged in the prior art.

In the first aspect, a method for determining the quality of a wake-up link is provided, including:

The terminal obtains the wake-up link quality index;

When the relationship between the wake-up link quality index and the preset threshold meets a preset condition, determine the wake-up link quality, and perform a state switching operation;

Wherein, the wake-up link quality indicator is used to determine the situation that the terminal receives a wake-up signal from the sending end.

In a second aspect, an apparatus for determining the quality of a wake-up link is provided, including:

An acquisition module, configured for the terminal to acquire a wake-up link quality indicator;

An execution module, configured to determine the quality of the wake-up link and perform a state switching operation when the relationship between the quality index of the wake-up link and the preset threshold meets a preset condition;

In a third aspect, a terminal is provided, including: a processor, a memory, and a program stored in the memory and operable on the processor, and when the program is executed by the processor, the terminal described in the first aspect can be implemented. steps of the method described above.

In a fourth aspect, a readable storage medium is provided, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method as described in the first aspect are implemented.

According to a fifth aspect, a computer program product is provided, the program product is stored in a non-transitory storage medium, and the computer program product is executed by at least one processor to implement the steps of the method described in the first aspect.

A sixth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and implement the method as described in the first aspect A step of.

In a seventh aspect, there is provided a communication device configured to implement the steps of the method described in the first aspect.

In the embodiment of the present application, the terminal uses the situation of receiving the wake-up signal from the sending end as the quality indicator of the wake-up link, determines the quality of the wake-up link, and performs a state switching operation, which can more effectively identify good and bad link quality, And this method can be better suitable for envelope detection of low power consumption wake-up receivers.

Description of drawings

FIG. 1a is a schematic structural diagram of a wireless communication system provided by an embodiment of the present application;

Figure 1b is a schematic diagram of the working principle of the existing low-power wake-up receiver;

Figure 1c is a schematic structural diagram of the existing WUR beacon signal;

FIG. 2a is a schematic flowchart of a method for determining the quality of a wake-up link provided by an embodiment of the present application;

Fig. 2b is a schematic diagram of a terminal structure provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of an application scenario provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a device for determining wake-up link quality provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a terminal structure provided by an embodiment of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specified order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and "second" distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the description and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

It is worth noting that the technology described in the embodiment of this application is not limited to the Long Term Evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-Advanced, LTE-A) system, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (Single-carrier Frequency-Division Multiple Access, SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies. However, the following description describes the New Radio (NR) system for example purposes, and uses NR terminology in most of the following descriptions, and these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6th generation Generation, 6G) communication system.

Fig. 1a shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network side device 12. Wherein, the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) equipment, robot, wearable device (Wearable Device), vehicle equipment (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE), smart home (home equipment with wireless communication function, Such as refrigerators, TVs, washing machines or furniture, etc.), wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, game consoles, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, Wireless Local Area Network (WLAN) Area Network, WLAN) access point, wireless fidelity (Wireless Fidelity, WiFi) node, transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, all The above-mentioned base stations are not limited to specified technical terms. It should be noted that in the embodiment of the present application, only the base stations in the NR system are taken as examples, but the specific types of the base stations are not limited.

In order to better understand the solutions of the embodiments of the present application, the following contents are firstly introduced:

WUR beacon

A low-power wake-up receiver can be used in existing Wireless Fidelity (WiFi) scenarios. As shown in Figure 1b, the low-power wake-up receiver includes two parts: a main receiver and a wake-up receiver. The main receiver is used to send and receive data, and the wake-up receiver is used to wake up the main receiver. Before being woken up, the main receiver is in a closed state and does not send and receive data. The wake-up receiver receives the wake-up signal sent by the transmitter (for example, AP), and the wake-up signal can be an On-Off Keying (OOK) modulated signal, so that the wake-up receiver can detect the wake-up signal by means of envelope detection. The power consumption is reduced to the order of hundreds of microwatts, which greatly reduces the power consumption of users.

In order to maintain the synchronization between the low-power wake-up receiver and the AP, the WUR beacon signal is periodically sent to convey the time information, as shown in Figure 1c, the type of WUR beacon Media Access Control frame (Medium Access Control frame, MAC frame) is related The control (type dependent control) carries a total of 12 bits of information [5:16] in the 64 bits of the timing synchronization function (Timing Synchronization Function, TSF) clock (timer) of the AP. , update the local TSF timer of the user, so as to achieve the purpose of synchronizing with the AP. The transmission period of WUR beacon and the offset of the transmission start position are indicated by the operation element (operation element) sent by the AP. The period is the minimum number of TSF time units between two beacon transmissions, and the start position is offset relative to TSF0. Number of TSF time units. When CSMA delays (deferrals) occur, the WUR beacon will be delayed in the current cycle, but will still be sent at the position determined by the WUR beacon's sending cycle and the sending start position in subsequent cycles.

The WUR beacon signal is also used as a link maintenance signal. When the WUR beacon signal is not received for a period of time, the station (station, STA) must perform a WUR search or switch to the mode in which the main communication module wakes up. When the wake-up signal is configured with a Discontinuous Reception (DRX) cycle, that is, when waking up to monitor the wake-up signal according to the DRX cycle, the wake-up signal is also used as a link hold signal. In the DRX cycle that does not send a wake-up signal, the AP can send WUR beacon is used as link maintenance signal. Wherein, the time when the link maintenance signal is not received is determined by the user.

5th-Generation Radio Link Monitoring, 5G RLM measurement

The 5G NR terminal needs to measure the downlink quality on the Radio Link Monitoring Reference Signal (RLM-RS) resource, and compare the measurement result with two thresholds Qout and Qin. The RLM-RS resource can be all Synchronization Signal Block (SSB), or all Channel-State Information reference Signal (CSI-RS), or a mixture of SSB and CSI-RS. Among them, Qout and Qin are the threshold values obtained based on the transmission parameters of the assumed physical downlink control channel (Physical downlink control channel, PDCCH) according to the given block error rate (Block Error Rate, BLER), and Qout is defined as the downlink cannot The threshold of reliable reception, the corresponding BLER is the out-of-sync block error rate (BLERout), which is defined as the threshold at which the downlink can be reliably received, and the corresponding BLER is the synchronization block error rate ( in-sync block error rate(BLERin)).

The 5G NR terminal measures the link quality on the configured RLM-RS resources every indication period and compares it with Qout and Qin. When the link quality measured on all the configured RLM-RS resources is worse than Qout, it reports Out-of-sync to the upper layer, when the link quality measured on at least the configured RLM-RS resources is better than Qin, report to the upper layer synchronization (in-sync). The upper layer starts the T310 timer when it receives N310 out-of-sync instructions in a row, and stops the T310 timer when it receives N311 in-sync instructions in a row and the T310 timer is running. When the T310 timer expires, it is considered that the wireless link fails and needs to be reselected.

In the existing technology, link quality is judged by whether a link maintenance signal such as WUR beacon signal and WUR wake-up signal is received within a period of time. Since the CSMA method is used to compete for access, even though the signal period is configured, it is still impossible to accurately judge a period of time. The number of beacon signals and WUR signals sent within a period, that is, when the AP CSMA fails to compete for sending resources, and poor link quality can lead to failure to receive the hold signal, so the method of time accumulation can only judge the link quality to a certain extent. In 5G NR, the method of measuring the link quality in the RLM-RS resource and comparing it with the threshold Qout and Qin can judge the link quality more accurately. However, considering that the low-power wake-up receiver uses envelope detection to reduce power consumption signal, the signal-to-noise ratio or signal-to-interference-noise ratio cannot be measured directly according to the way NR measures link quality in RLM-RS resources. On the other hand, in order to reduce the power consumption of low-power wake-up signals, OOK modulation is generally used, and PDCCH is not sent, so when a low-power wake-up signal is introduced in a mobile communication system, the link monitoring method of RLM in 5G NR cannot be directly adopted.

The method and device provided by the embodiments of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

Referring to Figure 2a, an embodiment of the present application provides a method for determining the quality of a wake-up link, the method may be executed by a terminal, and the specific steps include

Step 201: the terminal acquires a wake-up link quality indicator;

Step 202: When the relationship between the wake-up link quality index and the preset threshold meets the preset condition, determine the wake-up link quality, and perform a state switching operation;

The above wake-up link quality indicator is used to determine the situation that the terminal receives the wake-up signal from the sending end.

In the embodiment of the present application, the above-mentioned sending end may be a network device, such as a base station, etc., and the above-mentioned sending end may be another terminal, and the embodiment of the present application does not limit the specific type of the above-mentioned sending end.

Specifically, the terminal in the embodiment of the present application may be a mobile terminal applied to the NR system, and its specific structure may be shown in Figure 2b, which includes two modules, the first module is the main communication module for mobile communication For data transmission and reception, the second module is a low-power wake-up receiving module for receiving wake-up signals. When the main communication module does not receive or send data for a period of time, it enters the shutdown or sleep state. When the second module detects the wake-up signal sent by the sender, and the wake-up signal contains the information of the receiver, it triggers to wake up the first module. One module enters the working state, and can receive and send data. When the second module is not awakened, the first module is in the off or sleep state, and does not receive or send data.

The above-mentioned relationship between the wake-up link quality index and the preset threshold meets the preset condition. Specifically, it may be that the wake-up link quality index is greater than the preset threshold, or the wake-up link quality index is smaller than the preset threshold, or the wake-up link quality index is greater than the preset threshold. or equal to the preset threshold, and the wake-up link quality index is less than or equal to the preset threshold.

In a possible implementation manner, the wake-up link quality indicator includes one or more of the following:

(1) The number of times the terminal continuously satisfies the first condition within the preset time period;

(2) The number of times the terminal continuously meets the second condition within the preset time period;

(3) The ratio of the terminal meeting the first condition within the preset time period;

(4) The ratio of the terminal meeting the second condition within the preset time period;

Among them, the first condition is that the terminal successfully receives the preamble sequence from the sender, the second condition is that the terminal fails to receive the preamble sequence from the sender, and the proportion of the terminal meeting the first condition is that the number of times the terminal satisfies the first condition accounts for the number of wake-up signals sent by the sender. The ratio of the total number of times, the ratio of the terminal meeting the second condition is the ratio of the number of times the terminal meets the second condition to the total number of times the sender sends the wake-up signal.

In a possible implementation manner, the state switching operation includes any of the following:

(1) Wake up the main receiver;

(2) Turn off the main receiver;

(3) Turn off and wake up the receiver.

In a possible implementation manner, the preset threshold is a threshold configured by the network side through high-level signaling, or a threshold pre-configured by the network side.

In a possible implementation manner, the foregoing preamble sequence is a periodic sequence or an aperiodic sequence, that is, the sending and receiving of the preamble sequence may be periodic or aperiodic.

In a possible implementation manner, the above-mentioned preamble sequence is a common preamble sequence used for detection of multiple or multiple groups of terminals, that is, the common preamble sequence is used for all receiving ends (the terminal as the execution subject in the embodiment of this application is the receiving end terminal) detection;

In the case that the preamble sequence is a periodic sequence, the period of the preamble sequence is the sending period of the common preamble sequence.

In a possible implementation manner, the preamble sequence is a dedicated preamble sequence used for detection by one or a group of terminals, that is, the dedicated preamble sequence is used for detection by a specified receiving end;

In the case that the preamble sequence is a periodic sequence, the period of the preamble sequence is the sending period of the wake-up signal corresponding to one or a group of terminals.

The scheme of this application is described in detail below according to the situation that the preamble sequence is a common preamble sequence and a dedicated preamble sequence:

The leading sequence is a public leading sequence, and the method flow is as follows:

(1) The sending end periodically or aperiodically sends the preamble sequence, which is used by multiple or multiple receiving ends to monitor the wake-up link quality.

(2.1) The receiving end counts the number of successful common preambles detected continuously within a period of time, and marks it as the low-power wake-up signal link quality index 1, which will be compared with the first threshold, and if it is greater than the first threshold, it will be judged that the quality meets the conditions ;

(2.2) The receiving end counts the number of successfully detected common preamble sequences within a period of time, and divides it by the total number of common preamble sequences L sent by the transmitting end within this period to obtain a ratio, which is marked as a low-power wake-up signal link The second quality index will be compared with the second threshold, and if it is greater than the second threshold, it will be judged that the quality meets the conditions;

(2.3) The receiving end counts the number of common preamble sequences that fail to detect continuously within a period of time, and marks it as a low-power wake-up signal link quality indicator three, which will be compared with the third threshold. If it is less than the third threshold, it is judged that the quality meets the conditions ;

(2.4) The receiving end counts the number of common preamble sequences that fail to detect within a period of time, and divides it by the total number of common preamble sequences L sent by the sending end within the time period to obtain a ratio, which is marked as a low-power wake-up signal link The fourth quality index will be compared with the fourth threshold, and if it is less than the fourth threshold, it will be judged that the quality meets the conditions;

When the preamble sequence is periodically sent/received, the low-power wake-up signal link quality indicator may include one or more of the four indicators described in (2.1) to (2.4) above.

When the preamble sequence is sent/received aperiodically, the link quality index of the low-power wake-up signal may be index one or/and index three.

(3.1) When the link quality index of the low-power wake-up signal is compared with the threshold and it is determined that the link quality meets the reliability transmission, the state switches to turn off the main receiver or stays at the turn off main receiver.

(3.2) When the link quality index of the low-power wake-up signal is compared with the threshold and it is determined that the link quality does not meet the reliability of transmission, the state is switched to wake up the main receiver, and the wake-up receiver can also be turned off at the same time.

When periodically sending/receiving the preamble sequence, a time window is used to represent a period of time, as shown in Figure 3, a time window contains L preamble sequence periods, and the starting point of the time window used by the receiving end for statistics at time tn is tn-(L -1), the end point of the time window is tn, the start point of the time window used by the receiving end for statistics at time tn+1 is tn-L, and the end point of the time window is tn+1.

Multiple receivers or groups of receivers are configured to receive common preamble sequence time and frequency domain positions, where the time domain positions include one or more of the following configurations:

(1) Period: the period of receiving the common preamble sequence;

(2) Receive the starting position offset of the common preamble sequence.

The preamble sequence is a dedicated preamble sequence, and the method flow is as follows:

(1) The sending end periodically or aperiodically sends the preamble sequence, which is used for one or a group of receiving ends to monitor the wake-up link quality.

(2.1) The receiving end counts the number of successful common preambles detected continuously within a period of time, and marks it as the low-power wake-up signal link quality index 1, which will be compared with the first threshold, and if it is greater than the first threshold, it will be judged that the quality meets the conditions .

(2.2) The receiving end counts the number of successfully detected common preamble sequences within a period of time, and divides it by the total number of common preamble sequences L sent by the transmitting end within this period to obtain a ratio, which is marked as a low-power wake-up signal link The second quality index is compared with the second threshold, and if it is greater than the second threshold, it is judged that the quality meets the condition.

(2.3) The receiving end counts the number of common preamble sequences that fail to detect continuously within a period of time, and marks it as a low-power wake-up signal link quality indicator three, which will be compared with the third threshold. If it is less than the third threshold, it is judged that the quality meets the conditions .

(2.4) The receiving end counts the number of common preamble sequences that fail to detect within a period of time, and divides it by the total number of common preamble sequences L sent by the sending end within the time period to obtain a ratio, which is marked as a low-power wake-up signal link The fourth quality index will be compared with the fourth threshold, and if it is less than the fourth threshold, it will be judged that the quality meets the condition.

When sending periodically, the sending end sends a wake-up signal or a preamble sequence in each DRX cycle, which is used for a receiving end or a group of receiving ends to monitor the quality of the wake-up link. As shown in Figure 3, a time window includes L' DRX cycles , the starting point of the time window used by the receiving end for statistics at time tn is tn-(L'-1), the end point of the time window is tn, the starting point of the time window used by the receiving end for statistics at time tn+1 is tn-L', and the time The window ends at tn+1. The wake-up signal contains preamble sequence and data. The preamble sequence can be used to distinguish different receivers or receiver groups. The data carries other information of the wake-up signal. The sender only sends the preamble sequence in the DRX cycle when the wake-up signal is not sent. Preamble sequences with different signals are used to distinguish, for example, a common preamble sequence or other sequences are used.

A receiver or a group of receivers are configured to receive the wake-up signal in the time and frequency domain positions, where the time domain positions include one or more of the following configurations:

(1) DRX cycle: the cycle of receiving the wake-up signal;

(2) The starting position offset of receiving the wake-up signal;

(3) The offset in the DRX cycle of receiving the wake-up signal

(4) the size of the time window for receiving the wake-up signal;

The receiving end only wakes up and monitors the wake-up signal at the resource position of each configured time domain.

Below in conjunction with specific embodiment, the scheme of the present application is described:

In this embodiment, the sending end is a base station, and the receiving end is users (i.e. terminals), which are users 1-8 respectively, wherein users 1-4 form a user group, which is identified as user group 1, and users 5-8 form another user group. User group, identified as user group 2. In practical applications, both the sending end and the receiving end may be users.

The base station configures the time and frequency domain positions of the wake-up signal for user group 1 through high-level signaling of the main communication module, such as Radio Resource Control (RRC) signaling, wherein the time domain positions include one or more of the following Configuration:

(1) DRX cycle: the cycle of receiving the wake-up signal;

(2) The starting position offset of receiving the wake-up signal;

(3) The offset in the DRX cycle of receiving the wake-up signal;

(4) the size of the time window for receiving the wake-up signal;

User group 2 is not configured with wake-up signal related configurations, so users in user group 1 monitor the wake-up signal in a DRX cycle, and users in user group 2 continuously monitor the wake-up signal.

Assume that users 1 and 4 in user group 1 and users 5 and 6 in user group 2 have no data reception and transmission by the main communication module for a period of time, so the user turns off or sleeps the main communication module, and wakes up through low power consumption The receiving module monitors the wake-up signal, and users 1 and 4 monitor the wake-up signal according to the DRX cycle, that is, wake up in each DRX cycle to monitor the dedicated preamble and subsequent data, and wake up the receiving module with low power consumption in the rest of the time, and it is also in a sleep state, thereby saving power . Users 5 and 6 continuously listen for the wake-up signal.

The base station configures the time and frequency domain positions for receiving common preamble sequences for multiple receivers or groups of receivers through high-level signaling of the main communication module, such as RRC signaling, where the time domain positions include one or more of the following Configuration:

(1) Period – the period for receiving the common preamble,

(2) receiving the starting position offset of the common preamble sequence;

The base station periodically sends the common preamble sequence, the starting point of the time window used for statistics by users 5 and 6 at time tn is tn-(L-1), and the end point of the time window is tn;

Users 5 and 6 count the number of successful common preambles detected continuously within a period of time, and mark it as the low-power wake-up signal link quality index 1, which will be compared with the first threshold. If it is greater than the first threshold, it is judged that the quality meets the conditions.

Users 5 and 6 count the number of successfully detected common preambles within a period of time, and divide it by the total number L of common preambles sent by the sender within this period to obtain a ratio, which is marked as the link quality of the low-power wake-up signal The second indicator will be compared with the second threshold, and if it is greater than the second threshold, it will be judged that the quality meets the conditions.

Users 5 and 6 count the number of common preamble sequences that fail to be detected continuously within a period of time, mark it as the low-power wake-up signal link quality index three, and compare it with the third threshold. If it is less than the third threshold, it is judged that the quality meets the conditions.

Users 5 and 6 count the number of common preambles that fail to be detected within a period of time, and divide it by the total number L of common preambles sent by the sender within this period to obtain a ratio, which is marked as the link quality of the low-power wake-up signal The fourth indicator will be compared with the fourth threshold, and if it is less than the fourth threshold, it will be judged that the quality meets the conditions.

When the preamble sequence is periodically sent/received, the low-power wake-up signal link quality indicator may include one or more of the above four.

When the link quality index of the low-power wake-up signal is compared with the threshold and it is determined that the link quality satisfies reliable transmission, the state switches to shutting down the main receiver or stays at shutting down the main receiver.

When the link quality index of the low-power wake-up signal is compared with the threshold and it is determined that the link quality does not meet the requirements for reliable transmission, the state is switched to wake up the main receiver, and the wake-up receiver can also be turned off at the same time.

Assume that the dedicated preamble sequences used by user group 1 are sequences 1 and 2, where sequence 1 is used to indicate that there is no data load after the sequence, and the low-power wake-up receiving module can directly enter the sleep state after receiving the sequence, and sequence 1 can use the same sequence as the common preamble sequence of the same sequence. Sequence 2 is used to indicate that there is a data load after the sequence. After the data is received and decoded to determine the wake-up user ID, the low-power wake-up receiving module of the user whose user ID is included in the data load triggers the main communication module to wake up and enter the working state. The low power consumption of other users wakes up the receiving module and enters the sleep state.

The base station sends preamble sequence 1 or 2 in each DRX cycle of user group 1. When sending sequence 2, it also sends data load at the same time. Users 1 and 4 count the number of common preamble sequences that are successfully detected consecutively within a period of time, which is marked as low The link quality index 1 of the power wake-up signal is compared with the first threshold, and if it is greater than the first threshold, it is judged that the quality meets the condition.

Users 1 and 4 count the number of successfully detected common preambles within a period of time, and divide it by the total number L of common preambles sent by the sender within this period to obtain a ratio, which is marked as the link quality of the low-power wake-up signal The second indicator will be compared with the second threshold, and if it is greater than the second threshold, it will be judged that the quality meets the condition.

Users 1 and 4 count the number of common preamble sequences that fail to detect continuously within a period of time, and mark it as the low-power wake-up signal link quality index 3, which will be compared with the third threshold. If it is less than the third threshold, it is judged that the quality meets the conditions.

Users 1 and 4 count the number of common preambles that fail to be detected within a period of time, and divide it by the total number L of common preambles sent by the sender within this period to obtain a ratio, which is marked as the link quality of the low-power wake-up signal The fourth indicator will be compared with the fourth threshold, and if it is less than the fourth threshold, it will be judged that the quality meets the conditions.

When the link quality index of the low-power wake-up signal is compared with the threshold and it is determined that the link quality does not meet the requirements for reliable transmission, the state switches to wake-up the main receiver, and the wake-up receiver can also be turned off at the same time.

In the above embodiments, the preamble sequence and the data load can adopt the OOK modulation mode. Therefore, in order to facilitate time accumulation at the receiving end, the periods Tpre and TDRX can adopt integer multiples of the OOK symbol length.

Referring to FIG. 4 , an embodiment of the present application provides an apparatus 400 for determining the quality of a wake-up link, including:

An acquisition module 401, configured for the terminal to acquire a wake-up link quality indicator;

An execution module 402, configured to determine the quality of the wake-up link and perform a state switching operation when the relationship between the quality index of the wake-up link and the preset threshold meets a preset condition;

The number of times the terminal continuously meets the first condition within a preset time period;

The number of times the terminal continuously meets the second condition within a preset time period;

During the preset time period, the ratio of the terminal meeting the first condition;

Within the preset time period, the ratio of the terminal meeting the second condition;

Wherein, the first condition is that the terminal successfully receives the preamble sequence from the transmitting end, the second condition is that the terminal fails to receive the preamble sequence from the transmitting end, and the first condition The ratio is the ratio of the number of times the terminal satisfies the first condition to the total number of times the sending end sends a wake-up signal, and the ratio of the second condition is the ratio of the number of times the terminal meets the second condition to the total number of times the sending end sends a wake-up signal. The ratio of the total number of wake-up signals sent by the terminal.

Wake up the main receiver;

Turn off the main receiver;

Turn off to wake up the receiver.

In a possible implementation manner, the preset threshold is a threshold configured by the network side through high-layer signaling, or a threshold pre-configured by the network side.

In a possible implementation manner, the leading sequence is a periodic sequence or an aperiodic sequence.

In a possible implementation manner, the preamble sequence is a common preamble sequence used for detection of multiple or multiple groups of terminals;

In a possible implementation manner, the preamble sequence is a dedicated preamble sequence used for detection of one or a group of terminals;

In the case that the preamble sequence is a periodic sequence, the period of the preamble sequence is the sending period of the wake-up signal corresponding to the one or a group of terminals.

FIG. 5 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

The terminal 500 includes but not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, and a processor 510, etc. .

Those skilled in the art can understand that the terminal 500 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 510 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in FIG. 5 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange different components, which will not be repeated here.

It should be understood that, in the embodiment of the present application, the input unit 504 may include a graphics processor (Graphics Processing Unit, GPU) 5041 and a microphone 5042, and the graphics processor 5041 is used for the image capture device ( Such as the image data of the still picture or video obtained by the camera) for processing. The display unit 506 may include a display panel 5061, and the display panel 5061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 507 includes a touch panel 5071 and other input devices 5072 . The touch panel 5071 is also called a touch screen. The touch panel 5071 may include two parts, a touch detection device and a touch controller. Other input devices 5072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 501 receives the downlink data from the network side device, and processes it to the processor 510; in addition, sends the uplink data to the network side device. Generally, the radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 509 can be used to store software programs or instructions as well as various data. The memory 509 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 509 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

The processor 510 may include one or more processing units; optionally, the processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 510 .

The above-mentioned processor 510 is used for:

The terminal obtains the wake-up link quality index;

When the relationship between the wake-up link quality index and the preset threshold satisfies a preset condition, determine the wake-up link quality, and perform a state switching operation;

Optionally, the wake-up link quality indicator includes one or more of the following:

Optionally, the state switching operation includes any of the following:

Wake up the main receiver;

Turn off the main receiver;

Turn off to wake up the receiver.

Optionally, the preset threshold is a threshold configured by the network side through high-level signaling, or a threshold pre-configured by the network side.

Optionally, the leading sequence is a periodic sequence or an aperiodic sequence.

Optionally, the preamble sequence is a common preamble sequence used for detection of multiple or multiple groups of terminals;

Optionally, the preamble is a dedicated preamble used for detection of one or a group of terminals;

An embodiment of the present application further provides a program product, the program product is stored in a non-volatile storage medium, and the program product is executed by at least one processor to implement the steps of the method as shown in FIG. 2a.

The embodiment of the present application also provides a readable storage medium, the readable storage medium may be nonvolatile or volatile, the readable storage medium stores programs or instructions, and the programs or instructions are stored in When the processor executes, each process of the above-mentioned method embodiment shown in FIG. 2a can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

The embodiment of the present application also provides a computer program product, the computer program product is stored in a non-transitory storage medium, and the computer program product is executed by at least one processor to implement the above method embodiment shown in FIG. 2a Each process can achieve the same technical effect, so in order to avoid repetition, it will not be repeated here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiments. The readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction to implement the above described in Figure 2a. Each process of the method embodiment is shown, and the same technical effect can be achieved, so in order to avoid repetition, details are not repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product in essence or the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to enable a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A method of determining wake-up link quality, comprising:

The terminal obtains the wake-up link quality indicator;

When the relationship between the wake-up link quality index and the preset threshold meets a preset condition, determine the wake-up link quality, and perform a state switching operation;

Wherein, the wake-up link quality indicator is used to determine the situation that the terminal receives a wake-up signal from the sending end.
The method according to claim 1, wherein the wake-up link quality indicator includes one or more of the following:

The number of times the terminal continuously meets the first condition within a preset time period;

The number of times the terminal continuously meets the second condition within a preset time period;

During the preset time period, the ratio of the terminal meeting the first condition;

Within the preset time period, the ratio of the terminal meeting the second condition;

Wherein, the first condition is that the terminal successfully receives the preamble sequence from the transmitting end, the second condition is that the terminal fails to receive the preamble sequence from the transmitting end, and the terminal satisfies the first condition The ratio is the ratio of the number of times the terminal satisfies the first condition to the total number of times the sender sends a wake-up signal, and the ratio of the terminal to the second condition is the ratio of the number of times the terminal satisfies the second condition to the total number of times the sender sends a wake-up signal. The ratio of the total number of times the sender sends wake-up signals.
The method according to claim 1, wherein the state switching operation comprises any of the following:

Wake up the main receiver;

Turn off the main receiver;

Turn off to wake up the receiver.
The method according to claim 1, wherein the preset threshold is a threshold configured by the network side through high-layer signaling, or a threshold pre-configured by the network side.
The method according to claim 1, wherein the preamble sequence is a periodic sequence or an aperiodic sequence.
The method according to claim 5, wherein the preamble is a common preamble used for detection of multiple or multiple groups of terminals;

In the case that the preamble sequence is a periodic sequence, the period of the preamble sequence is the sending period of the common preamble sequence.
The method according to claim 5, wherein the preamble is a dedicated preamble used for detection of one or a group of terminals;

In the case that the preamble sequence is a periodic sequence, the period of the preamble sequence is the sending period of the wake-up signal corresponding to the one or a group of terminals.
An apparatus for determining wake-up link quality, comprising:

An acquisition module, configured for the terminal to acquire a wake-up link quality indicator;

An execution module, configured to determine the quality of the wake-up link and perform a state switching operation when the relationship between the quality index of the wake-up link and the preset threshold meets a preset condition;

Wherein, the wake-up link quality indicator is used to determine the situation that the terminal receives a wake-up signal from the sending end.
The device according to claim 8, wherein the wake-up link quality indicator includes one or more of the following:

The number of times the terminal continuously meets the first condition within a preset time period;

The number of times the terminal continuously meets the second condition within a preset time period;

During the preset time period, the ratio of the terminal meeting the first condition;

Within the preset time period, the ratio of the terminal meeting the second condition;

Wherein, the first condition is that the terminal successfully receives the preamble sequence from the transmitting end, the second condition is that the terminal fails to receive the preamble sequence from the transmitting end, and the terminal satisfies the first condition The ratio is the ratio of the number of times the terminal satisfies the first condition to the total number of times the sender sends a wake-up signal, and the ratio of the terminal to the second condition is the ratio of the number of times the terminal satisfies the second condition to the total number of times the sender sends a wake-up signal. The ratio of the total number of times the sender sends wake-up signals.
The device according to claim 8, wherein the state switching operation comprises any of the following:

Wake up the main receiver;

Turn off the main receiver;

Turn off to wake up the receiver.
The apparatus according to claim 8, wherein the preset threshold is a threshold configured by the network side through high-level signaling, or a threshold pre-configured by the network side.
The device according to claim 8, wherein the preamble sequence is a periodic sequence or an aperiodic sequence.
The apparatus according to claim 12, wherein the preamble is a common preamble used for detection of multiple or multiple groups of terminals;

In the case that the preamble sequence is a periodic sequence, the period of the preamble sequence is the sending period of the common preamble sequence.
The apparatus according to claim 12, wherein the preamble is a dedicated preamble for detection of one or a group of terminals;

In the case that the preamble sequence is a periodic sequence, the period of the preamble sequence is the sending period of the wake-up signal corresponding to the one or a group of terminals.
A terminal, comprising: a processor, a memory, and a program stored on the memory and operable on the processor, when the program is executed by the processor, any one of claims 1 to 7 is realized The steps of the method.
A readable storage medium storing programs or instructions on the readable storage medium, and implementing the steps of the method according to any one of claims 1 to 7 when the programs or instructions are executed by a processor.
A chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method according to any one of claims 1 to 7 step.
A computer program product, wherein the computer program product is stored in a non-transitory readable storage medium, and the computer program product is executed by at least one processor to implement the steps of the method described above.
A communication device configured to perform the steps of the method according to any one of claims 1-7.