CN117279121A

CN117279121A - Wakeup signal transmission method and communication system

Info

Publication number: CN117279121A
Application number: CN202210678594.6A
Authority: CN
Inventors: 孙欢; 罗之虎; 金哲
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2023-12-22
Also published as: WO2023241288A1

Abstract

The embodiment of the application provides a wake-up signal transmission method and a communication system, so as to solve the problem that when a WUR link of a terminal device exceeds a WUS coverage area sent by an access network device, the power consumption of the terminal device is increased or the overhead of the access network device is increased in the existing wake-up signal transmission method, and the method comprises the following steps: the access network equipment determines a wake-up signal; wherein, the wake-up signal carries first indication information; the access network device sends the wake-up signal to a first terminal device, so that the first terminal device determines whether to forward the first indication information to a second terminal device based on the wake-up signal.

Description

Wakeup signal transmission method and communication system

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a wake-up signal transmission method and a communication system.

Background

To save power consumption of the terminal device, a new air interface (NR) system as specified by the third generation partnership project (3rd generation partnership project,3GPP) protocol introduces a discontinuous reception (discontinuous reception, DRX) mechanism in release 15. The DRX mechanism is to configure a DRX period for a terminal device in a radio resource control (radio resource control, RRC) connection state, the terminal device configured with the DRX period wakes up to monitor a physical downlink control channel (physical downlink control channel, PDCCH) in a DRX activation time, and goes to sleep without monitoring the PDCCH in a DRX deactivation time.

If the access network device does not have downlink data to send, the access network device may notify the terminal device to sleep for a long DRX cycle instead of periodically waking up to monitor for a period of PDCCH and then going to sleep. Thus, the NR system introduces a wake-up signal (WUS) at release 16, and the terminal device configured with WUS wakes up for a period of time to check WUS before starting a long DRX period, and if informed that wake-up is not required, the terminal device goes to sleep in the next long DRX period. The NR system further introduces a wake-up receiver (WUR) in release 18, and the terminal device configured with the WUR interface receives WUS through a WUR link or a main link, where the checked power consumption of the WUR link is lower than the sleep power consumption of the main link, and the power consumption saving gain of the WUR on the terminal device is significant. However, WUR needs to adopt modulation modes supporting low-power consumption reception such as on-off-keying (OOK), frequency shift keying (frequency shift keying, FSK), etc., so as to have the above characteristics, and when WUR is transmitted by adopting modulation modes supporting low-power consumption reception such as OOK, FSK, etc., coverage capability of WUR links is poorer than that of main links, and WUR links of part of edge terminal devices can exceed coverage of WUR transmitted by access network devices, at this time, either the terminal devices switch to the main links to transmit and receive data at regular time, but larger power consumption is generated, or the access network devices increase transmission power, but larger cost is generated, and other terminal devices are easy to be interfered.

As can be seen, the existing wake-up signal transmission method has the problem that when the WUR link of the terminal device exceeds the coverage area of the WUS sent by the access network device, the power consumption of the terminal device is increased or the overhead of the access network device is increased because the terminal device cannot receive the WUS through the WUR link.

Disclosure of Invention

The embodiment of the application provides a wake-up signal transmission method and a communication system, which are used for solving the problem that the power consumption of terminal equipment is increased or the overhead of access network equipment is increased when a WUR link of the terminal equipment exceeds the WUS coverage range sent by the access network equipment in the existing wake-up signal transmission method.

In a first aspect, a wake-up signal transmission method is provided, which may be executed by an access network device, or executed by a chip provided in the access network device for implementing a function of the access network device, or executed by other components for implementing a function of the access network device, the method comprising:

the access network equipment determines a wake-up signal; wherein, the wake-up signal carries first indication information;

the access network device sends the wake-up signal to a first terminal device, so that the first terminal device determines whether to forward the first indication information to a second terminal device based on the wake-up signal.

In the embodiment of the application, the access network device may add the wake-up indication information of the second terminal device in the wake-up signal, where the access network device only needs to send the wake-up signal to the first terminal device, and the first terminal device determines whether to forward the wake-up indication information of the second terminal device to the second terminal device based on the wake-up signal. Therefore, the second terminal equipment does not need to be switched to the main link to receive and transmit data at regular time, so that the power consumption of the second terminal equipment is reduced, and the access network equipment does not need to increase the transmitting power, so that the overhead of the access network equipment and the second terminal equipment is reduced, and other terminal equipment is not easy to interfere.

In a possible implementation manner, before the access network device determines the wake-up signal, terminal type information and measurement information of any terminal device can be obtained; the terminal type information indicates whether any terminal equipment is power consumption insensitive terminal equipment, and the measurement information indicates the position of any terminal equipment and the coverage condition of a wake-up receiver WUR link and a main link of any terminal equipment; and determining the first terminal equipment and the second terminal equipment based on the terminal type information and the measurement information.

In the embodiment of the application, the access network device can determine the forwarding device (i.e. the first terminal device) and the target device (i.e. the second terminal device) in the wake-up signal transmission based on whether the terminal device is a power consumption insensitive terminal device, the position of the terminal device and the coverage condition of the wake-up receiver WUR link and the main link of the terminal device, so that the wake-up indication information of the second terminal device can be forwarded to the second terminal device by the first terminal device without the need of the access network device to be directly sent to the second terminal device, thereby the second terminal device does not need to be switched to the main link to receive the wake-up signal at regular time, the power consumption of the second terminal device is reduced, and the access network device also does not need to increase the transmitting power, thereby not only reducing the cost of the access network device and the second terminal device, but also being not easy to interfere with other terminal devices.

In one possible implementation manner, the first terminal device may be a power consumption insensitive terminal device, the coverage measurement result of the WUR link of the first terminal device is not smaller than a first threshold, and the coverage measurement result of the main link of the first terminal device is not smaller than a second threshold.

In a possible implementation manner, the coverage measurement result of the WUR link of the second terminal device is smaller than the first threshold, the coverage measurement result of the main link of the second terminal device is not smaller than the second threshold, and the distance between the second terminal device and the first terminal device is not greater than a third threshold.

Thus, when the WUR link of the first terminal device does not exceed the WUS coverage area sent by the access network device, and the WUR link of the second terminal device exceeds the WUS coverage area sent by the access network device, the access network device only needs to send the wake-up indication information of the second terminal device to the first terminal device with the coverage measurement result of the WUR link not smaller than the first threshold value, and the first terminal device forwards the wake-up indication information of the second terminal device to the second terminal device with the distance from the first terminal device not greater than the third threshold value. Therefore, the second terminal equipment does not need to be switched to the main link to transmit and receive data at fixed time, the power consumption of the second terminal equipment is reduced, and the access network equipment does not need to increase the transmitting power, so that the cost of the access network equipment and the second terminal equipment is reduced, and other terminal equipment is not easy to interfere.

In a possible implementation manner, the wake-up signal may also carry forwarding indication information or adopt a predefined frame structure; wherein the forwarding indication information indicates whether the first terminal device forwards the first indication information to the second terminal device, and the predefined frame structure indicates the first terminal device to forward the first indication information to the second terminal device.

In a possible implementation manner, the wake-up signal can also carry second indication information; the forwarding indication information may indicate whether the first terminal device forwards the first indication information to the second terminal device, including:

the forwarding indication information may indicate the first terminal device to wake up a main link of the first terminal device based on the second indication information; or,

the forwarding indication information may further indicate that the first terminal device does not wake up the primary link of the first terminal device based on the second indication information, and forward the first indication information to the second terminal device.

In the embodiment of the application, the access network device may add the forwarding indication information and the second indication information in the wake-up signal, where the forwarding indication information may indicate whether the first terminal device wakes up the main link of the first terminal device based on the second indication information, or add the second indication information in the wake-up signal adopting a predefined frame structure, so that the access network device only needs to send the wake-up signal carrying the second indication information and the forwarding indication information or the wake-up signal carrying the second indication information and adopting the predefined frame structure to the first terminal device, and the first terminal device determines whether to wake up the main link of the first terminal device based on the second indication information based on the forwarding indication information or the wake-up signal carried in the wake-up signal and forwards the first indication information to the second terminal device when not waking up the main link of the first terminal device based on the second indication information.

In a possible implementation manner, the first indication information may be an identity of the second terminal device, and the second indication information may be a preset field value; or,

the first indication information may be an identity of the second terminal device, and the second indication information may be an identity of the first terminal device; or,

the first indication information may be the preset field value, and the second indication information may be the preset field value; or,

the first indication information may be the preset field value, and the second indication information may be an identity of the first terminal device.

Therefore, the wake-up signal can adopt various frame structures, such as long bit and short bit, long bit and long bit, short bit and short bit, short bit and long bit and the like, thereby meeting various transmission scenes and reducing the cost of access network equipment and second terminal equipment. The transmission of the wake-up signal carrying the first indication information and the second indication information is particularly, but not exclusively, realized in the following ways.

In a possible implementation manner, the first indication information is an identity of the second terminal device; the access network device sends the wake-up signal to the first terminal device, so that the first terminal device determines whether to forward the first indication information to the second terminal device based on the wake-up signal, and the method comprises the following steps:

If the second indication information is the preset field value, the access network equipment sends first downlink control information DCI to the first terminal equipment; wherein, the first DCI indicates a monitoring position of the first terminal equipment;

the access network device sends the wake-up signal to the first terminal device, so that the first terminal device reads other fields in the wake-up signal when receiving the preset field value at the monitoring position of the first terminal device, and determines whether to forward the identity of the second terminal device to the second terminal device based on the forwarding indication information or the predefined frame structure;

if the second indication information is the identity of the first terminal equipment, the access network equipment sends the wake-up signal to the first terminal equipment, so that the first terminal equipment determines whether to forward the identity of the second terminal equipment to the second terminal equipment based on the forwarding indication information or the predefined frame structure when receiving the identity of the first terminal equipment.

In still another possible implementation manner, the first indication information may be the preset field value; the access network device sends the wake-up signal to the first terminal device, so that the first terminal device determines whether to forward the first indication information to the second terminal device based on the wake-up signal, and the method comprises the following steps:

If the second indication information is the preset field value, the access network device sends second DCI to the first terminal device, and third DCI to the second terminal device; the second DCI indicates the monitoring position of the first terminal equipment, and the third DCI indicates the monitoring position of the second terminal equipment;

the access network device sends the wake-up signal to the first terminal device, so that the first terminal device reads other fields in the wake-up signal when receiving the preset field value at the monitoring position of the first terminal device, and determines whether to send the preset field value at the monitoring position of the second terminal device based on the forwarding indication information or the predefined frame structure;

if the second indication information is the identity of the first terminal equipment, the access network equipment sends the third DCI to the second terminal equipment;

the access network device sends the wake-up signal to the first terminal device, so that the first terminal device reads other fields in the wake-up signal when receiving the identity of the first terminal device, and determines whether to send the preset field value at the monitoring position of the second terminal device based on the forwarding indication information or the predefined frame structure.

In a second aspect, there is also provided a wake-up signal transmission method, which may be performed by a first terminal device, or by a chip provided in the first terminal device for implementing a function of the terminal device, or by other means for implementing a function of the first terminal device, the method comprising:

the method comprises the steps that a first terminal device receives a wake-up signal sent by an access network device; wherein, the wake-up signal carries first indication information;

the first terminal device determines whether to forward the first indication information to a second terminal device based on the wake-up signal.

In a possible implementation manner, before the first terminal device receives the wake-up signal sent by the access network device, terminal type information and measurement information can also be sent to the access network device; the terminal type information indicates whether the first terminal device is a power consumption insensitive terminal device, and the measurement information indicates a position of the first terminal device and coverage conditions of a wake-up receiver WUR link and a main link of the first terminal device.

In a possible implementation manner, the wake-up signal can also carry second indication information; the forwarding indication information indicates whether the first terminal device forwards the first indication information to the second terminal device, including:

In a possible implementation manner, the first indication information may be an identity of the second terminal device; the first terminal device determining whether to forward the first indication information to the second terminal device based on the wake-up signal, including:

If the second indication information is the preset field value, the first terminal equipment receives first downlink control information DCI sent by the access network equipment before receiving a wake-up signal sent by the access network equipment; wherein, the first DCI indicates a monitoring position of the first terminal equipment;

the first terminal device reads other fields in the wake-up signal when receiving the preset field value at the monitoring position of the first terminal device, and determines whether to forward the identity of the second terminal device to the second terminal device based on the forwarding indication information or the predefined frame structure;

if the second indication information is the identity of the first terminal device, the first terminal device reads other fields of the wake-up signal when receiving the identity of the first terminal device, and determines whether to forward the identity of the second terminal device to the second terminal device based on the forwarding indication information or the predefined frame structure.

In still another possible implementation manner, the first indication information may also be the preset field value; the first terminal device determining whether to forward the first indication information to the second terminal device based on the wake-up signal, including:

If the second indication information is the preset field value, the first terminal device receives second DCI sent by the access network device before receiving a wake-up signal sent by the access network device; wherein, the second DCI indicates the monitoring position of the first terminal equipment;

the first terminal device reads other fields of the wake-up signal when receiving the preset field value at the monitoring position of the first terminal device, and determines whether to send the preset field value at the monitoring position of the second terminal device based on the forwarding indication information or the predefined frame structure;

if the second indication information is the identity of the first terminal device, the first terminal device reads other fields of the wake-up signal when receiving the identity of the first terminal device, and determines whether to send the preset field value at the monitoring position of the second terminal device based on the forwarding indication information or the predefined frame structure.

In a third aspect, there is also provided a wake-up signal transmission method, the method comprising:

the second terminal equipment receives a wake-up signal sent by the first terminal equipment; wherein, the wake-up signal carries first indication information;

And the second terminal equipment wakes up the main link of the second terminal equipment based on the first indication information.

In a possible implementation manner, before the second terminal device receives the wake-up signal sent by the first terminal device, measurement information may also be sent to the access network device; wherein the measurement information indicates a location of the second terminal device and a coverage of a wake-up receiver WUR link and a main link of the second terminal device.

In a fourth aspect, an access network device is provided, the access network device comprising a processor. Optionally, a memory may be included for storing computer instructions. The processor and the memory are coupled to each other for implementing the method described in the first aspect or any possible implementation of the first aspect. Alternatively, the access network device may not include a memory, which may be located external to the access network device. Optionally, the access network device may also include a communication interface for communicating with other apparatus or devices. The processor, the memory and the communication interface are coupled to each other for implementing the method described in the first aspect or any one of the possible implementation manners of the first aspect. For example, the processor, when executing the computer instructions stored in the memory, causes the access network device to perform the method of the first aspect or any one of the possible implementation manners of the first aspect. The access network device is illustratively a communication device, or a chip or other component disposed in a communication device.

Wherein if the access network device is a communication device, the communication interface is for example implemented by a transceiver (or a transmitter and a receiver) in said communication device, for example by an antenna, a feeder, a codec etc. in said communication device. Alternatively, if the access network device is a chip provided in the communication device, the communication interface is, for example, an input/output interface of the chip, such as an input/output pin or the like, and the communication interface is connected to a radio frequency transceiver component in the communication device, so as to implement the information transceiving through the radio frequency transceiver component.

In a fifth aspect, a first terminal device is provided, the first terminal device comprising a processor. Optionally, a memory may be included for storing computer instructions. The processor and the memory are coupled to each other for implementing the method described in the second aspect or any one of the possible embodiments of the second aspect. Alternatively, the first terminal device may not include a memory, and the memory may be located outside the first terminal device. Optionally, the first terminal device may further comprise a communication interface for communicating with other apparatuses or devices. The processor, memory and communication interface are coupled to each other for implementing the method described in the second aspect or any one of the possible embodiments of the second aspect. For example, the processor, when executing the computer instructions stored in the memory, causes the first terminal device to perform the method of the second aspect or any of the possible embodiments of the second aspect. The first terminal device is illustratively a communication device, or a chip or other component provided in a communication device.

Wherein if the first terminal device is a communication device, the communication interface is for example implemented by a transceiver (or a transmitter and a receiver) in said communication device, for example by an antenna, a feeder, a codec etc. in said communication device. Alternatively, if the first terminal device is a chip provided in the communication device, the communication interface is, for example, an input/output interface of the chip, such as an input/output pin or the like, and the communication interface is connected to a radio frequency transceiver component in the communication device, so as to implement the information transceiving through the radio frequency transceiver component.

In a sixth aspect, a second terminal device is provided, the second terminal device comprising a processor. Optionally, a memory may be included for storing computer instructions. The processor and the memory are coupled to each other for implementing the method described in the third aspect or any possible implementation of the third aspect. Alternatively, the second terminal device may not include a memory, and the memory may be located outside the second terminal device. Optionally, the second terminal device may further comprise a communication interface for communicating with other apparatuses or devices. The processor, the memory and the communication interface are coupled to each other for implementing the method described in the third aspect or any one of the possible embodiments of the third aspect. For example, when the processor executes the computer instructions stored in the memory, the second terminal device is caused to perform the method of the third aspect or any of the possible embodiments of the third aspect. The second terminal device is illustratively a communication device, or a chip or other component provided in a communication device.

Wherein if the second terminal device is a communication device, the communication interface is for example implemented by a transceiver (or a transmitter and a receiver) in said communication device, for example by an antenna, a feeder, a codec etc. in said communication device. Alternatively, if the second terminal device is a chip provided in the communication device, the communication interface is, for example, an input/output interface of the chip, such as an input/output pin or the like, and the communication interface is connected to a radio frequency transceiver component in the communication device, so as to implement the information transceiving through the radio frequency transceiver component.

A seventh aspect provides a communication system comprising the access network device of the fourth aspect, the first terminal device of the fifth aspect and the second terminal device of the sixth aspect.

In an eighth aspect, a computer readable storage medium is provided for storing computer instructions which, when run on a computer, cause the computer to perform the method described in the first aspect or any one of the possible implementations.

In a ninth aspect, a computer readable storage medium is provided for storing computer instructions which, when run on a computer, cause the computer to perform the method of the second aspect or any one of the possible embodiments described above.

In a tenth aspect, a computer readable storage medium is provided for storing computer instructions which, when run on a computer, cause the computer to perform the method as described in the third aspect or any one of the possible implementations.

In an eleventh aspect, there is provided a computer program product comprising instructions for storing computer instructions which, when run on a computer, cause the computer to perform the method of the first aspect or any one of the possible implementations described above.

In a twelfth aspect, there is provided a computer program product containing instructions for storing computer instructions which, when run on a computer, cause the computer to perform the method of the second aspect or any one of the possible implementations described above.

In a thirteenth aspect, there is provided a computer program product comprising instructions for storing computer instructions which, when run on a computer, cause the computer to perform the method of the third aspect or any one of the possible implementations described above.

Description of technical effects that may be brought about by any of the possible embodiments of the second aspect to the thirteenth aspect may refer to description of technical effects that may be brought about by any of the possible embodiments of the first aspect, and description thereof will not be repeated.

Drawings

FIG. 1a is a schematic diagram of a network structure according to an embodiment of the present application;

FIG. 1b is a schematic diagram of an NR system to which embodiments of the present application may be applied;

fig. 2 is a flowchart of a wake-up signal transmission method provided in an embodiment of the present application;

fig. 3 is a schematic diagram of a first wake-up signal according to an embodiment of the present application;

FIG. 4 is a diagram of a second wake-up signal according to an embodiment of the present disclosure;

FIG. 5 is a diagram illustrating a third wake-up signal provided in an embodiment of the present application;

FIG. 6 is a diagram of a fourth wake-up signal according to an embodiment of the present application;

fig. 7 is a schematic block diagram of an access network device according to an embodiment of the present application;

fig. 8 is a schematic block diagram of a first terminal device provided in an embodiment of the present application;

fig. 9 is a schematic block diagram of a second terminal device provided in an embodiment of the present application;

fig. 10 is a schematic block diagram of a communication device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

In the following, some terms in the embodiments of the present application are explained for easy understanding by those skilled in the art.

1) DRX mechanism in order to save power consumption of the terminal device, the NR system specified by the 3GPP protocol introduces a DRX mechanism in release 15. The DRX mechanism is to configure a DRX cycle for a terminal device in an RRC connected state. The DRX cycle consists of "On Duration (wake-up period or wake-up time or active period or Duration)" and "Opportunity for DRX (sleep period or sleep time)" during which the terminal device listens to and receives the PDCCH, and "Opportunity for DRX" during which the terminal device does not receive the PDCCH. When the terminal device configures one DRX cycle, the state of the terminal device may be divided into a DRX active (active) state and a DRX inactive (non-active) state (or referred to as a sleep state), the terminal device is in the DRX active state during an active time (active time), and the terminal device is in the DRX non-active state during an inactive time (non-active time). When the terminal equipment is in the DRX activation time, the terminal equipment can wake up to monitor and receive the PDCCH, and when the terminal equipment is in the DRX deactivation time, the terminal equipment can go to sleep and not monitor and receive the PDCCH so as to save power consumption. The terminal device is at DRX activation time when any one of the following timers is running: a DRX duration timer (DRX-onduration timer); a DRX deactivation timer (DRX-InactityTimer); DRX downlink retransmission timer (DRX-retransmission TimerDL); DRX uplink retransmission timer (DRX-retransmission TimerUL); random access contention resolution timer (ra-contentionresolution timer). In addition, the DRX activation time includes other cases, such as: a waiting period after the terminal device has sent a scheduling request (scheduling request, SR) on a physical uplink control channel (physical uplink control channel, PUCCH); the terminal device has not received a PDCCH period indicating a new transmission after successfully receiving a random access response (random access response, RAR) based on non-contention based random access.

2) WUS, if the access network device does not have downlink data to send, the access network device may inform the terminal device to sleep for a long DRX cycle instead of periodically waking up to monitor for a period of PDCCH and then to go to sleep. Thus, the NR system introduces WUS at release 16, and the terminal device configured with WUS wakes up for a period of time before starting a long DRX cycle to check WUS, and if informed that wake-up is not required, the terminal device goes to sleep at the next long DRX cycle. The access network device may simultaneously transmit a plurality of WUSs using a downlink control information (downlink control information, DCI) format 2_6, wherein one bit represents the WUS of one terminal device. The terminal device checks WUS for less energy than other DCI formats and PDCCHs, and listens to WUS for a much smaller duration than long DRX cycles or even DRX cycles, which helps to reduce the power consumption of the terminal device.

3) The WUR, NR system introduces WUR into release 18, and the terminal device configured with WUR interface receives WUS through WUR link or main link, where the checking power consumption of WUR link is lower than the sleeping power consumption of main link, and the power consumption saving gain of WUR to the terminal device is significant.

4) The main link and the WUR link are the links between the access network equipment and the terminal equipment, wherein the main link is a link which does not transmit any signal through the WUR interface of the terminal equipment, and the WUR link is a link which transmits WUS between the access network equipment and the terminal equipment through the WUR interface of the terminal equipment.

5) Time-frequency resources, corresponding to orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols and subcarriers within OFDM symbols. The smallest time-frequency resource refers to one subcarrier within one OFDM symbol, which is called one Resource Element (RE). The physical layer uses time-frequency resources for transmission, which is scheduled with a set of 12 subcarriers, which is called a physical resource block (physical resource block, PRB). The time-frequency resources in an NR system represent physical channels or physical signals. In the 3GPP protocol, the physical channel corresponds to a set of resource elements that carry higher layer information, while the physical signal corresponds to a set of resource elements that do not carry higher layer information.

6) Positioning measurement techniques, positioning information is obtained from downlink positioning reference signal (positioning reference signal, PRS) or uplink channel sounding reference signal (sounding reference signal, SRS) measurements. In downlink measurement, a base station and a neighboring base station configure PRS resources and transmit reference signals on the PRS resources, a terminal device receives the reference signals at corresponding resource positions to perform positioning measurement, obtains at least one measurement value of signal receiving power, relative arrival time, a transceiver time difference and an arrival angle, and reports a measurement result to a corresponding base station. Similarly, in uplink measurement, the base station and the neighboring base station configure SRS resources, the terminal device transmits a reference signal on the corresponding SRS resources, and the base station receives the signal on the corresponding resource location to obtain at least one measurement value of signal receiving power, relative arrival time, transceiver time difference and arrival angle. In both positioning measurement modes, the base station and the neighboring base station report measurement results to the core network. The core network calculates the specific position of the terminal equipment according to the positioning measurement results reported by the plurality of base stations, and the base stations can obtain the position information of the terminal equipment by sending requests to the core network.

7) Coverage measurement techniques, coverage measurement in NR systems, also measures the quality of a radio channel by means of a specific reference signal. Taking channel state information (channel state information, CSI) measurements as an example, a base station configures CSI resources for a terminal device and sends reference signals on the CSI resources. The terminal equipment receives the reference signal according to the resource position configured by the base station, obtains the measured value which can represent the coverage information, such as channel state information-reference signal receiving power (channel state information based reference signal Received Power, CSI-RSRP), channel state information-signal-to-interference plus noise ratio (channel state information based signal to noise and interference ratio, CSI-SINR) and the like, and reports the measured value to the base station in a periodic or non-periodic mode. After receiving the measurement result from the terminal, the base station can acquire the downlink coverage condition from the current base station to the terminal.

8) The terms "system" and "network" in embodiments of the present application may be used interchangeably. "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

And, unless otherwise indicated, the terms "first," "second," and the like in the embodiments herein are used for distinguishing between multiple objects and are not used for limiting the size, content, order, timing, priority, importance, or the like of the multiple objects. For example, the first terminal device and the second terminal device are only for distinguishing different terminal devices, and are not indicative of the difference in priority or importance level of the two pieces of information.

The foregoing presents some concepts related to the embodiments of the present application, and the following presents technical features related to the embodiments of the present application.

In order to save power consumption of the terminal device, the NR system specified by the 3GPP protocol introduces a DRX mechanism at release 15. WUS was introduced at release 16 and WUR was introduced at release 18. The WUS configured terminal device wakes up for a period of time before starting the long DRX cycle to check WUS, and if informed that wake-up is not required, the terminal device goes to sleep in the next long DRX cycle. The terminal equipment configured with the WUR interface receives WUS through the WUR link or the main link, the check power consumption of the WUR link is lower than the sleep power consumption of the main link, and the power consumption saving gain of the WUR to the terminal equipment is remarkable. However, WUR needs to adopt modulation modes such as OOK and FSK to support low-power consumption reception, so that the above characteristics can be achieved, and when WUS is transmitted by adopting modulation modes such as OOK and FSK to support low-power consumption reception, coverage capability of WUR links is poorer than that of main links, and WUR links of part of edge terminal devices can exceed coverage of WUS sent by access network devices, at this time, the terminal devices are switched to main link receiving WUS at regular time, but larger power consumption is generated, or the access network devices increase transmission power, but larger overhead is generated, and other terminal devices are easily interfered. It can be seen that when the WUR link of the terminal device exceeds the coverage of the WUS sent by the access network device, the power consumption of the terminal device or the overhead of the access network device increases due to the fact that the terminal device cannot receive the WUS through the WUR link.

In view of this, a technical solution of the embodiments of the present application is provided. In the embodiment of the application, the access network device may add the wake-up indication information of the second terminal device in the wake-up signal, where the access network device only needs to send the wake-up signal to the first terminal device, and the first terminal device determines whether to forward the wake-up indication information of the second terminal device to the second terminal device based on the wake-up signal. Therefore, the second terminal equipment does not need to be switched to the main link to receive and transmit data at regular time, so that the power consumption of the second terminal equipment is reduced, and the access network equipment does not need to increase the transmitting power, so that the overhead of the access network equipment and the second terminal equipment is reduced, and other terminal equipment is not easy to interfere.

It should be understood that the technical solutions of the embodiments of the present application may be applied to various communication systems, for example, fourth generation (4th generation,4G) communication systems (such as long term evolution (long term evolution, LTE) systems), fifth generation (5th generation,5G) communication systems (such as NR systems), machine-type communication (machine type communication, MTC) systems, device-to-device (D2D) systems, internet of things (internet of things, ioT) systems, internet of things (V2X) systems, narrowband internet of things (narrow band internet of things, NB-IoT) systems, and new communication systems that occur in future communication developments, etc., without limitation.

Fig. 1a is a schematic diagram of a network architecture according to an embodiment of the present application. In fig. 1a an access network device, a terminal device 1 and a terminal device 2 are included. For example, the main links of the terminal device 1 and the terminal device 2 are in the coverage of any signal received or transmitted by the access network device, the WUR link of the terminal device 1 is in the coverage of WUS transmitted by the access network device, and the WUR link of the terminal device 2 is not in the coverage of WUS transmitted by the access network device.

Among them, AN access network device, including AN Access Network (AN) device, a radio access network (radio access network, RAN) device, AN access network device, such as a base station (e.g., AN access point), may refer to a device in the access network that communicates with a wireless terminal device through one or more cells on AN air interface, or AN access network device in a vehicle-to-infrastructure (V2X) technology is, for example, a Road Side Unit (RSU). The base station may be configured to inter-convert the received air frames with Internet Protocol (IP) packets as a router between the terminal device and the rest of the access network, which may include an IP network. The RSU may be a fixed infrastructure entity supporting V2X applications, which may exchange messages with other entities supporting V2X applications. The access network device may also coordinate attribute management for the air interface. For example, the access network device may include an evolved Node B (NodeB or eNB or e-NodeB, evolved Node B) in a long term evolution (long term evolution, LTE) system or long term evolution advanced (long term evolution-advanced, LTE-a), or may also include a next generation Node B (next generation Node B, gNB) or next generation evolved base station (next generation evolved nodeB, ng-eNB), en-gNB (enhanced next generation Node B, gNB) in a 5G NR system: enhanced next generation base stations; centralized Units (CUs) and Distributed Units (DUs) in a Cloud access network (Cloud radio access network, cloud RAN) system may also be included, or relay devices may also be included, and embodiments of the present application are not limited.

In the embodiment of the present application, the means for implementing the function of the access network device may be the access network device, or may be a means capable of supporting the access network device to implement the function, for example, a chip system, and the apparatus may be installed in the access network device. In the embodiment of the application, the chip system may be formed by a chip, and may also include a chip and other discrete devices. In the technical solution provided in the embodiments of the present application, taking the device for implementing the function of the access network device as an example of the access network device, the technical solution provided in the embodiments of the present application is described.

It will be appreciated that the access network device operates in, for example, an evolved universal mobile telecommunications system terrestrial radio access (evolved UMTS terrestrial radio access, E-UTRA) system, or in an NR system, or in a next generation or other communication system.

The access network device in fig. 1a is for example a base station. The access network device corresponds to different devices in different systems, for example, may correspond to an eNB in a 4G system, and corresponds to an access network device in 5G in a 5G system, for example, a gNB. Of course, the technical solution provided in the embodiment of the present application may also be applied to a future mobile communication system, so that the access network device in fig. 1a may also correspond to the access network device in the future mobile communication system. In fig. 1a, the access network device is taken as an example of a base station, and in fact, referring to the foregoing description, the access network device may also be an RSU or the like.

Terminal device 1 and terminal device 2 comprise devices for providing voice and/or data connectivity to a user, in particular, devices for providing voice to a user, or devices for providing data connectivity to a user, or devices for providing voice and data connectivity to a user. For example, may include a handheld device having wireless connectivity, or a processing device connected to a wireless modem. The terminal device may communicate with the core network via a radio access network (radio access network, RAN), exchange voice or data with the RAN, or interact voice and data with the RAN. The terminal device may include a User Equipment (UE), a wireless terminal device, a mobile terminal device, a device-to-device (D2D) terminal device, a vehicle-to-all (vehicle to everything, V2X) terminal device, a machine-to-machine/machine-type communication (M2M/MTC) terminal device, an internet of things (internet of things, ioT) terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a remote station, an Access Point (AP), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), or a user equipment (user device), etc. For example, mobile telephones (or "cellular" telephones) computers with mobile terminal devices, portable, pocket, hand-held, computer-built mobile devices, and the like may be included. Such as personal communication services (personal communication service, PCS) phones, cordless phones, session initiation protocol (session initiation protocol, SIP) phones, wireless local loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistant, PDAs), and the like. But also limited devices such as devices with lower power consumption, or devices with limited memory capabilities, or devices with limited computing capabilities, etc. Examples include bar codes, radio frequency identification (radio frequency identification, RFID), sensors, global positioning systems (global positioning system, GPS), laser scanners, and other information sensing devices.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device or an intelligent wearable device, and is a generic name for intelligently designing daily wear and developing wearable devices, such as glasses, gloves, watches, clothes, shoes, and the like, by applying wearable technology. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.

While the various terminal devices described above, if located on a vehicle (e.g., placed in a vehicle or mounted in a vehicle), may be considered as in-vehicle terminal devices, for example, also referred to as in-vehicle units (OBUs).

In the embodiment of the present application, the device for implementing the function of the terminal device may be the terminal device, or may be a device capable of supporting the terminal device to implement the function, for example, a chip system, and the device may be installed in the terminal device. In the embodiment of the application, the chip system may be formed by a chip, and may also include a chip and other discrete devices. In the technical solution provided in the embodiments of the present application, the device for implementing the function of the terminal is a terminal device, which is described in the embodiments of the present application as an example.

It should be understood that the terminal device in fig. 1a is taken as an example of a mobile phone, and in fact, it is known from the foregoing description of the terminal device that the terminal device in the embodiment of the present application is not limited to the mobile phone.

Referring to fig. 1b, a schematic diagram of an NR system to which embodiments of the present application may be applied is shown. The NR system in fig. 1b includes a UE, (R) AN, a user plane function (user plane function, UPF) network element, a Data Network (DN), AN access and mobility management function (access and mobility management fu nction, AMF) network element, a session management function (session management function, SMF) network element, a policy control function (policy control function, PCF) network element, AN application function (application function, AF) network element, AN authentication server function (authentication server function, AUSF) network element, a unified data management (unified data management, UDM) network element, and the like, which is not specifically limited in this embodiment of the present application.

The NG1 interface in fig. 1b is a reference point between the UE and the AMF network element; the NG2 interface is a reference point between the (R) AN and the AMF network element, and is used for sending non-access stratum (NAS) messages and next-generation application protocol (next generation application protocol, NGAP) messages; the NG3 interface is a reference point of (R) AN and UPF network elements and is used for transmitting data of a user plane and the like; the NG4 interface is a reference point between the SMF network element and the UPF network element, and is used for transmitting information such as data buffer indication information, downlink data notification information, and the like; the NG5 interface is a reference point between the PCF network element and the AF network element; the NG6 interface is a reference point between the UPF network element and the DN and is used for transmitting data of a user plane and the like; the NG7 interface is a reference point between the SMF network element and the PCF network element; the NG8 interface is a reference point between the AMF network element and the UDM network element; the NG9 interface is a reference point between the UPF network element and the UPF network element; the NG10 interface is a reference point between the SMF network element and the UDM network element; the NG11 interface is a reference point between the AMF network element and the SMF network element; the NG12 interface is a reference point between the AMF network element and the AUSF network element; the NG13 interface is a reference point between the AUSF network element and the UDM network element; the NG14 interface is a reference point between the AMF network element and the AMF network element; the NG15 interface is a reference point between the PCF network element and the AMF network element.

It should be appreciated that the network elements or functions described above may be either network elements in a hardware device, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform). The network elements or functions may be divided into one or more services, and further, services that exist independently of the network functions may also occur. In this application, an instance of the above-described function, or an instance of a service included in the above-described function, or an instance of a service existing independently of a network function may be referred to as a service instance.

The communication system to which the technical solution of the embodiment of the present application is applicable is described above, and next, a wake-up signal transmission method provided by the embodiment of the present application is described with reference to fig. 2, which is a flowchart of the method. In the following description, this method is taken as an example of application to the network architecture shown in fig. 1 a.

For ease of description, hereinafter, this method is exemplified by the access network device and the terminal device. Since this embodiment is exemplified as applied to the network architecture shown in fig. 1a, the access network device described below may be the access network device in the network architecture shown in fig. 1a, the first terminal device described below may be the terminal device 1 in the network architecture shown in fig. 1a, and the second terminal device described below may be the terminal device 2 in the network architecture shown in fig. 1 a.

S21, the access network equipment determines a wake-up signal. The wake-up signal carries first indication information.

In some embodiments, the access network device may determine the forwarding device and the target device in the wake-up signal transmission before determining the wake-up signal. The wake-up signal carries first indication information, and the first indication information indicates a main link of the wake-up target device.

When determining the forwarding device and the target device in the wake-up signal transmission, the access network device firstly requests the core network device to acquire terminal type information and measurement information of any two terminal devices (such as a first terminal device and a second terminal device) of a main link in any signal coverage range received or transmitted by the access network device. The terminal type information indicates whether the terminal device is a power consumption insensitive terminal device, and the power consumption insensitive terminal device may be a terminal device with sufficient battery power, power supply, high charge-discharge ratio or a terminal device with willingness to help other devices, which is not particularly limited. The measurement information indicates the location of the terminal device and the coverage of WUR link and primary link of the terminal device.

And determining forwarding equipment and target equipment in wake-up signal transmission from the first terminal equipment and the second terminal equipment based on the terminal type information and the measurement information of the first terminal equipment and the second terminal equipment, for example, determining the first terminal equipment as the forwarding equipment in wake-up signal transmission, and determining the second terminal equipment as the target equipment in wake-up signal transmission. When the first terminal equipment is forwarding equipment in wake-up signal transmission, the first terminal equipment is power consumption insensitive terminal equipment, the coverage measurement result of a WUR link of the first terminal equipment is not smaller than a first threshold value, the coverage measurement result of a main link of the first terminal equipment is not smaller than a second threshold value, namely the WUR link of the first terminal equipment does not exceed the wake-up signal coverage range sent by the access network equipment, and the main link of the first terminal equipment does not exceed any signal coverage range received or sent by the access network equipment. When the second terminal equipment is the target equipment in the wake-up signal transmission, the coverage measurement result of the WUR link of the second terminal equipment is smaller than a first threshold value, the coverage measurement result of the main link of the second terminal equipment is not smaller than a second threshold value, the distance between the second terminal equipment and the first terminal equipment is not larger than a third threshold value, namely the WUR link of the second terminal equipment exceeds the wake-up signal coverage range sent by the access network equipment, and the main link of the second terminal equipment does not exceed any signal coverage range received or sent by the access network equipment.

It should be noted that, in the embodiment of the present application, the first terminal device and the second terminal device may send the terminal type information to the access network device through Msg1, msg3, or MsgA in the random access message when the terminal device is started up and connected to the network. After receiving the terminal type information of the first terminal device and the second terminal device, the access network device may forward the terminal type information of the first terminal device and the second terminal device to the core network device, and request to acquire the terminal type information of the first terminal device and the second terminal device from the core network device when determining the forwarding device and the target device in the wake-up signal transmission in order to reduce the power consumption of the access network device. Or, the access network device may not forward the terminal type information of the first terminal device and the second terminal device to the core network device, and directly obtain the terminal type information of the first terminal device and the second terminal device stored locally when determining the forwarding device and the target device in the wake-up signal transmission, which is not particularly limited.

In addition, if the terminal device is not a power consumption insensitive terminal device, the terminal type information may be sent to the access network device, or the terminal type information may not be sent to the access network device, that is, the second terminal device may not send the terminal type information to the access network device through the Msg1, the Msg3 or the MsgA in the random access message when the second terminal device is started to access the network, which is not specifically limited.

It should be noted that, in the embodiment of the present application, the first terminal device and the second terminal device may perform positioning measurement. Positioning information is obtained from downlink PRS or uplink SRS measurements. In downlink measurement, an access network device, such as a base station and a neighboring base station, configures PRS resources and transmits reference signals on the PRS resources, and a first terminal device and a second terminal device receive the reference signals at corresponding resource positions to perform positioning measurement, obtain at least one measurement value of signal receiving power, relative arrival time, a transceiver time difference and an arrival angle, and report a measurement result to the base station. In uplink measurement, a base station and a neighboring base station configure SRS resources, a first terminal device and a second terminal device send reference signals on the corresponding SRS resources, and the base station receives signals on corresponding resource positions to obtain at least one measured value of signal receiving power, relative arrival time, receiving-transmitting time difference and arrival angle. In both positioning measurement modes, the base station and the neighboring base station report measurement results to the core network equipment. The core network equipment calculates the positions of the first terminal equipment and the second terminal equipment according to positioning measurement results reported by a plurality of base stations, and when the base stations determine forwarding equipment and target equipment in wake-up signal transmission, the base stations request the core network equipment to acquire the positions of the first terminal equipment and the second terminal equipment.

It should be noted that, in the embodiment of the present application, the first terminal device and the second terminal device may perform coverage measurement.

For coverage measurement of a WUR link, an access network device, for example, a base station, configures a time-frequency resource for a first terminal device and a second terminal device, sends a sequence which can be received by a WUR interface and adopts envelope modulation on the time-frequency resource, and the first terminal device and the second terminal device perform coverage measurement through an envelope detection receiving sequence to obtain at least one measured value of signal receiving power, signal to interference and noise ratio, and reports the measured result to the base station. The sequences sent by the base station may be, but not limited to, m-sequences, gold sequences, or other newly defined sequences that are currently employed by the NR system.

For coverage measurement of the main link, the coverage measurement can be obtained according to the CSI-RS or the synchronous signal and broadcast channel block (synchronization signal and pbch block, SSB), when the measurement signal is the CSI-RS, the base station configures the CSI resource, the first terminal device and the second terminal device receive the reference signal at the corresponding resource position, at least one measured value of signal receiving power, signal to interference and noise ratio is obtained, and the measured result is reported to the base station. The base station reports the coverage measurement results of the main link and the WUR link to core network equipment, the core network equipment calculates the coverage conditions of the WUR link and the main link of the first terminal equipment and the second terminal equipment according to the coverage measurement results of the main link and the WUR link reported by the base station, and when determining forwarding equipment and target equipment in wake-up signal transmission, the base station requests the core network equipment to acquire the coverage conditions of the WUR link and the main link of the first terminal equipment and the second terminal equipment.

The access network device determines that the first terminal device is a forwarding device in wake-up signal transmission, and the second terminal device is a target device in wake-up signal transmission, but because a WUR link of the second terminal device exceeds a wake-up signal coverage area sent by the access network device, the second terminal device cannot receive the wake-up signal sent by the access network device through the WUR link, if the second terminal device is switched to the main link to receive and send data at regular time, larger power consumption is generated, and if the access network device increases the transmitting power, larger expenditure is generated, and other terminal devices are easily interfered. Therefore, when the access network device determines the wake-up signal, the wake-up signal can carry forwarding indication information besides the first indication information or the wake-up signal adopts a predefined frame structure. Wherein the forwarding indication information indicates whether the forwarding device (i.e. the first terminal device) forwards the first indication information to the target device (i.e. the second terminal device), and the predefined frame structure indicates that the first terminal device forwards the first indication information to the second terminal device. By adding forwarding indication information in the wake-up signal or adopting a predefined frame structure in the wake-up signal, the access network device only needs to send the wake-up signal to the first terminal device, and the first terminal device determines whether to forward the first indication information to the second terminal device or not based on whether the forwarding indication information carried in the wake-up signal or the wake-up signal adopts the predefined frame structure, so that the second terminal device does not need to switch to the main link to transmit and receive data at regular time, the power consumption of the second terminal device is reduced, the access network device does not need to increase the transmitting power, and therefore, the cost of the access network device and the second terminal device is reduced, and other terminal devices are not easy to interfere.

In addition, the wake-up signal can also carry second indication information. Wherein the second indication information indicates a main link that wakes up the forwarding device. When the wake-up signal carries forwarding indication information, first indication information and second indication information, the forwarding indication information may instruct the first terminal device to wake up a main link of the first terminal device based on the second indication information, but not forward the first indication information to the second terminal device, or the forwarding indication information may further instruct the first terminal device not to wake up the main link of the first terminal device based on the second indication information, and forward the first indication information to the second terminal device.

It should be noted that, in the embodiment of the present application, the forwarding indication information may be a preset field value, that is, the wake-up signal explicitly indicates whether the first terminal device forwards the first indication information to the second terminal device. For example, the forwarding indication information may be 1 or 0 of 1bit, when the forwarding indication information is 0, the first terminal device is instructed to wake up a main link of the first terminal device based on the second indication information, initiate random access or wait for paging, and not forward the first indication information to the second terminal device, and when the forwarding indication information is 1, the first terminal device is instructed not to wake up the main link of the first terminal device based on the second indication information, not to initiate random access or wait for paging, and forward the first indication information to the second terminal device;

The forwarding indication information may also be a scrambled codeword, i.e. the wake-up signal implicitly indicates whether the first terminal device forwards the first indication information to the second terminal device. For example, the forwarding indication information is codeword 1 or codeword 2, and codeword 1 and codeword 2 are orthogonal codewords. When the forwarding indication information is the code word 1, the first terminal equipment is instructed to wake up a main link of the first terminal equipment based on the second indication information, initiate random access or wait for paging, and not forward the first indication information to the second terminal equipment, and when the forwarding indication information is the code word 2, the first terminal equipment is instructed not to wake up the main link of the first terminal equipment based on the second indication information, not initiate random access or wait for paging, and forward the first indication information to the second terminal equipment.

It should be noted that, in the embodiment of the present application, the predefined frame structure may include two indication information in the wake-up signal, which are respectively the second indication information indicating to wake up the main link of the first terminal device, and the first indication information indicating to wake up the main link of the second terminal device, and may also be other frame structures, which is not specifically limited.

It should be noted that, in the embodiment of the present application, the first indication information may be an identity (identity document, ID) of the second terminal device, and the second indication information may be a preset field value, for example, the first indication information is ID2, and the second indication information is 1bit 1, that is, the wake-up signal adopts a frame structure of long bits and short bits;

Or the first indication information may be an identity of the second terminal device, and the second indication information may be an identity of the first terminal device, for example, the first indication information is ID2, the second indication information is ID1, that is, the wake-up signal adopts a frame structure of long bits and long bits;

alternatively, the first indication information may be a preset field value, and the second indication information may be a preset field value, for example, the first indication information is 1bit of 1bit, and the second indication information is 1bit of 1bit, that is, the wake-up signal adopts a frame structure of short bits and short bits;

or the first indication information may be a preset field value, the second indication information may be an identity of the first terminal device, for example, the first indication information is 1bit and the second indication information is ID1, that is, the wake-up signal adopts a frame structure of short bits and long bits.

Therefore, the wake-up signal can adopt various frame structures, such as long bit and short bit, long bit and long bit, short bit and short bit, short bit and long bit and the like, thereby meeting various transmission scenes and reducing the cost of access network equipment and second terminal equipment.

S22, the access network equipment sends a wake-up signal to the first terminal equipment, the first terminal equipment receives the wake-up signal sent by the access network equipment, and whether to forward the first indication information to the second terminal equipment is determined based on the wake-up signal.

In some embodiments, the access network device may send a wake-up signal to the first terminal device through a main link or a WUR link, and correspondingly, the first terminal device receives the wake-up signal sent by the access network device through the main link or the WUR link, and determines whether to forward the first indication information to the second terminal device based on forwarding indication information carried in the wake-up signal or whether the wake-up signal adopts a predefined frame structure.

For example, when the forwarding instruction information carried in the wake-up signal is 1, since the forwarding instruction information is 1, that is, the first terminal device is instructed not to wake up the main link of the first terminal device based on the second instruction information, random access is not initiated or paging is not waited for, and the first instruction information is forwarded to the second terminal device, at this time, the first terminal device may determine to forward the first instruction information to the second terminal device based on the wake-up signal;

or when the forwarding indication information carried in the wake-up signal is codeword 2, the first terminal device indicates that the first terminal device does not wake up the main link of the first terminal device based on the second indication information, does not initiate random access or wait for paging, and forwards the first indication information to the second terminal device, and at this time, the first terminal device can determine to forward the first indication information to the second terminal device based on the wake-up signal;

Alternatively, the wake-up signal may take a predefined frame structure, at which time the first terminal device may determine to forward the first indication information to the second terminal device based on the wake-up signal.

S23, when the first terminal equipment determines to forward the first indication information to the second terminal equipment based on the wake-up signal, the first terminal equipment forwards the first indication information to the second terminal equipment, and the second terminal equipment receives the first indication information forwarded by the first terminal equipment and wakes up the main link of the second terminal equipment based on the first indication information.

In some embodiments, when the first terminal device determines to forward the first indication information to the second terminal device based on the forwarding indication information carried in the wake-up signal or the wake-up signal by adopting a predefined frame structure, the first terminal device may forward the first indication information to the second terminal device through both reflection and relay, and correspondingly, the second terminal device receives the first indication information sent by the first terminal device, wakes up the main link of the second terminal device based on the first indication information, and initiates random access or waits for paging.

For example, the first terminal device may include a reflection module, and when it is determined to forward the first indication information to the second terminal device based on the forwarding indication information, the first terminal device opens the reflection module to forward the first indication information to the second terminal device in a reflection manner, and optionally, in order to increase the intensity of the reflection, the reflection module may include a power amplifier.

Or the first terminal device may not include the reflection module, when it is determined that the first indication information is forwarded to the second terminal device based on the forwarding indication information, the first terminal device may forward the first indication information to the second terminal device in a relay manner through the main link or the WUR link, and when the first terminal device forwards the first indication information through the main link, the first terminal device needs to wake up the main link first, and close the main link to open the WUR link after completing forwarding of the first indication information.

The following describes in detail the implementation of these two ways, respectively, in conjunction with specific examples:

in the first mode, if the first indication information is the identity of the second terminal device: ID2, the first terminal device can forward the first indication information to the second terminal device in a reflection mode or a relay mode.

For example, if the second indication information is a preset field value: 1bit, namely a frame structure of long bits and short bits is adopted as a wake-up signal, the access network equipment firstly configures a first DCI through RRC, and sends the first DCI to the first terminal equipment through a main link, wherein the first DCI indicates a monitoring position of the first terminal equipment, and then sends the wake-up signal to the first terminal equipment through the main link or a WUR link. Please refer to fig. 3, which is a schematic diagram of a first wake-up signal, wherein the wake-up signal carries a predetermined field value: 1 of 1bit, forwarding instruction information: 1 or 0 of 1bit, and identity of the second terminal device: ID2. The method comprises the steps that when 1bit 1 is received at a monitoring position of first terminal equipment, other fields in a wake-up signal are read by the first terminal equipment, whether ID2 is forwarded to second terminal equipment in a reflection mode or a relay mode is determined based on forwarding indication information carried in the wake-up signal or whether the wake-up signal adopts a predefined frame structure, and if the forwarding indication information is 1bit 1 or the wake-up signal adopts the predefined frame structure, the ID2 is forwarded to the second terminal equipment in the reflection mode or the relay mode;

If the second indication information is the identity of the first terminal equipment: and ID1, namely a frame structure of long bits and long bits is adopted as a wake-up signal, and the access network equipment sends the wake-up signal to the first terminal equipment through a main link or a WUR link. Please refer to fig. 4, which is a schematic diagram of a second wake-up signal, wherein the wake-up signal carries an identity of the first terminal device: ID1, forwarding instruction information: 1 or 0 of 1bit, and identity of the second terminal device: ID2. The first terminal equipment reads other fields in the wake-up signal when receiving the ID1, determines whether to forward the ID2 to the second terminal equipment in a reflection mode or a relay mode based on forwarding indication information carried in the wake-up signal or whether the wake-up signal adopts a predefined frame structure, and if the forwarding indication information is 1bit 1 or the wake-up signal adopts the predefined frame structure, forwards the ID2 to the second terminal equipment in the reflection mode or the relay mode.

In the second mode, if the first indication information is a preset field value: 1bit 1, the first terminal device can only forward the first indication information to the second terminal device in a relay mode.

For example, if the second indication information is a preset field value: 1bit, namely a frame structure of short bits and short bits is adopted as a wake-up signal, the access network equipment firstly configures second DCI and third DCI through RRC, the second DCI is sent to the first terminal equipment through a main link, the third DCI is sent to the second terminal equipment through the main link, wherein the second DCI indicates a monitoring position of the first terminal equipment, the third DCI indicates a monitoring position of the second terminal equipment, and then the wake-up signal is sent to the first terminal equipment through the main link or a WUR link. Please refer to fig. 5, which is a diagram illustrating a third wake-up signal, wherein the wake-up signal carries a preset field value: 1 of 1bit, forwarding instruction information: 1bit 1 or 0 and a listening position of the second terminal device. The method comprises the steps that when 1bit 1 is received at a monitoring position of first terminal equipment, other fields in a wake-up signal are read, whether 1bit 1 is sent at the monitoring position of second terminal equipment in a relay mode is determined based on forwarding indication information carried in the wake-up signal or whether the wake-up signal adopts a predefined frame structure, and if the forwarding indication information is 1bit 1 or the wake-up signal adopts the predefined frame structure, 1bit 1 is sent at the monitoring position of the second terminal equipment in the relay mode;

If the second indication information is the identity of the first terminal equipment: and ID1, namely a frame structure of short bits and long bits is adopted as a wake-up signal, the access network equipment firstly transmits a third DCI to the second terminal equipment through a main link, and then transmits the wake-up signal to the first terminal equipment through the main link or a WUR link. Please refer to fig. 6, which is a schematic diagram of a fourth wake-up signal, wherein the wake-up signal carries an identity of the first terminal device: ID1, forwarding instruction information: 1bit 1 or 0 and a listening position of the second terminal device. The first terminal equipment reads other fields in the wake-up signal when receiving the ID1, and based on forwarding indication information carried in the wake-up signal or whether the wake-up signal adopts 1bit 1 which is determined whether to send the 1bit at the monitoring position of the second terminal equipment through a relay mode or whether the wake-up signal adopts a predefined frame structure, if the forwarding indication information is 1bit 1, the 1bit 1 is sent at the monitoring position of the second terminal equipment through the relay mode.

In the above embodiment, when the WUR link of the first terminal device does not exceed the WUS coverage area sent by the access network device, the access network device may add forwarding indication information and wake-up indication information of the second terminal device in the wake-up signal or determine that the wake-up signal adopts a predefined frame structure and add wake-up indication information of the second terminal device in the wake-up signal, where the access network device only needs to send the wake-up signal to the first terminal device, and the first terminal device determines whether to forward the wake-up indication information of the second terminal device to the second terminal device based on the forwarding indication information carried in the wake-up signal or whether the wake-up signal adopts the predefined frame structure. Therefore, the second terminal equipment does not need to be switched to the main link to receive and transmit data at regular time, so that the power consumption of the second terminal equipment is reduced, and the access network equipment does not need to increase the transmitting power, so that the overhead of the access network equipment and the second terminal equipment is reduced, and other terminal equipment is not easy to interfere.

The apparatus for implementing the above method in the embodiments of the present application is described below with reference to the accompanying drawings. Therefore, the above contents can be used in the following embodiments, and repeated contents are not repeated.

Fig. 7 is a schematic block diagram of a communication device 700 provided in an embodiment of the present application. The communication means 700 is illustratively an access network device 700.

The access network device 700 comprises a processing module 710 and a sending module 720. Optionally, a receiving module 730 may also be included. The access network device 700 may be an access network device, or may be a chip applied in the access network device or other combination devices, components, etc. having the functions of the access network device. When the access network device 700 is an access network device, the sending module 720 may be a sender, the receiving module 730 may be a receiver, the sender or the receiver may include an antenna, a radio frequency circuit, etc., the processing module 710 may be a processor, and the processor may include one or more central processing units (central processing unit, CPU) therein. When the access network device 700 is a component having the above-described access network device function, the transmitting module 720 and the receiving module 730 may be radio frequency units, and the processing module 710 may be a processor. When the access network device 700 is a chip system, the transmitting module 720 and the receiving module 730 may be input/output interfaces of the chip, and the processing module 710 may be a processor of the chip system and may include one or more central processing units.

Wherein the processing module 710 may be configured to perform all operations performed by the access network device in the embodiment shown in fig. 2, except for the transceiving operations, such as determining a wake-up signal, etc., and/or other procedures for supporting the techniques described herein. The transmitting module 720 may be configured to perform all transmitting operations performed by the access network device in the embodiment shown in fig. 2, e.g., to transmit a wake-up signal to the first terminal device, and/or other processes for supporting the techniques described herein. The receiving module 730 may be configured to perform all of the receiving operations performed by the access network device in the embodiment shown in fig. 2, e.g., to receive terminal type information for the first terminal device and the second terminal device, and/or to support other procedures for the techniques described herein.

In addition, the transmitting module 720 and the receiving module 730 may be one functional module, which may be referred to as a transceiver module, for example, the transceiver module may be used to perform all the transmitting operations and the receiving operations performed by the access network device in the embodiment shown in fig. 2, for example, the transceiver module may be considered to be a transmitting module when performing the transmitting operation and may be considered to be a receiving module when performing the receiving operation; alternatively, the sending module 720 and the receiving module 730 may be two functional modules, where the sending module 720 and the receiving module 730 may be regarded as a generic term of the two functional modules, and the two functional modules are respectively the sending module 720 and the receiving module 730, where the sending module 720 is used to perform sending operations, for example, the sending module 720 may be used to perform all sending operations performed by the access network device in the embodiment shown in fig. 2, and the receiving module 730 is used to perform receiving operations, for example, the receiving module 730 may be used to perform all receiving operations performed by the access network device in the embodiment shown in fig. 2.

Wherein the processing module 710 is configured to determine a wake-up signal; wherein, the wake-up signal carries first indication information;

the sending module 720 is configured to send the wake-up signal to a first terminal device, so that the first terminal device determines whether to forward the first indication information to a second terminal device based on the wake-up signal.

In a possible implementation manner, the processing module 710 is further configured to:

acquiring terminal type information and measurement information of any terminal equipment; the terminal type information indicates whether any terminal equipment is power consumption insensitive terminal equipment, and the measurement information indicates the position of any terminal equipment and the coverage condition of a wake-up receiver WUR link and a main link of any terminal equipment;

and determining the first terminal equipment and the second terminal equipment based on the terminal type information and the measurement information.

In one possible implementation manner, the first terminal device is a power consumption insensitive terminal device, the coverage measurement result of the WUR link of the first terminal device is not smaller than a first threshold, and the coverage measurement result of the main link of the first terminal device is not smaller than a second threshold.

In a possible implementation manner, the wake-up signal also carries forwarding indication information or adopts a predefined frame structure; wherein the forwarding indication information indicates whether the first terminal device forwards the first indication information to the second terminal device, and the predefined frame structure indicates the first terminal device to forward the first indication information to the second terminal device.

In a possible implementation manner, the wake-up signal also carries second indication information; the forwarding indication information indicates whether the first terminal device forwards the first indication information to the second terminal device, including:

the forwarding indication information indicates the first terminal equipment to wake up a main link of the first terminal equipment based on the second indication information; or,

the forwarding indication information indicates that the first terminal equipment does not wake up a main link of the first terminal equipment based on the second indication information, and forwards the first indication information to the second terminal equipment.

In a possible implementation manner, the first indication information is an identity of the second terminal device, and the second indication information is a preset field value; or,

the first indication information is the identity of the second terminal equipment, and the second indication information is the identity of the first terminal equipment; or,

the first indication information is the preset field value, and the second indication information is the preset field value; or,

the first indication information is the preset field value, and the second indication information is the identity of the first terminal equipment.

In a possible implementation manner, the first indication information is an identity of the second terminal device; the sending module 720 is specifically configured to:

In a possible implementation manner, the first indication information is the preset field value; the sending module 720 is specifically configured to:

Fig. 8 is a schematic block diagram of a communication device 800 provided in an embodiment of the present application. The communication device 800 is illustratively a first terminal apparatus 800.

The first terminal device 800 comprises a processing module 810 and a receiving module 830. Optionally, a transmitting module 820 may also be included. The first terminal device 800 may be a first terminal device, or may be a chip applied in the first terminal device or other combination device, component, etc. having the functions of the first terminal device. When the first terminal device 800 is a first terminal device, the transmitting module 820 may be a transmitter, the receiving module 830 may be a receiver, the transmitter or the receiver may include an antenna, a radio frequency circuit, etc., and the processing module 810 may be a processor, which may include one or more CPUs. When the first terminal device 800 is a component having the above-described first terminal device function, the transmitting module 820 and the receiving module 830 may be radio frequency units, and the processing module 810 may be a processor. When the first terminal device 800 is a chip system, the transmitting module 820 and the receiving module 830 may be input/output interfaces of a chip, and the processing module 810 may be a processor of the chip system and may include one or more central processing units.

Wherein the processing module 810 may be configured to perform all operations of the embodiment shown in fig. 2, except for the transceiving operations performed by the first terminal device, such as determining whether to forward the first indication information to the second terminal device based on the forwarding indication information, and/or other processes for supporting the techniques described herein. The transmission module 820 may be used to perform all of the transmission operations performed by the first terminal device in the embodiment shown in fig. 2, e.g., to forward the first indication information to the second terminal device, and/or to support other processes of the techniques described herein. The receiving module 830 may be configured to perform all of the receiving operations performed by the first terminal device in the embodiment shown in fig. 2, e.g., to receive a wake-up signal sent by the access network device, and/or other processes for supporting the techniques described herein.

In addition, the transmitting module 820 and the receiving module 830 may be one functional module that can perform both transmitting operations and receiving operations, and may be referred to as a transceiver module, for example, the transceiver module may be used to perform all transmitting operations and receiving operations performed by the first terminal device in the embodiment shown in fig. 2, for example, the transceiver module may be considered to be a transmitting module when performing transmitting operations and may be considered to be a receiving module when performing receiving operations; alternatively, the transmitting module 820 and the receiving module 830 may be two functional modules, and the transceiver module may be regarded as a generic term of the two functional modules, where the two functional modules are respectively the transmitting module 820 and the receiving module 830, and the transmitting module 820 is used to perform the transmitting operation, for example, the transmitting module 820 may be used to perform all the transmitting operations performed by the first terminal device in the embodiment shown in fig. 2, and the receiving module 830 is used to perform the receiving operation, for example, the receiving module 830 may be used to perform all the receiving operations performed by the first terminal device in the embodiment shown in fig. 2.

The receiving module 830 is configured to receive a wake-up signal sent by an access network device; wherein, the wake-up signal carries first indication information;

the processing module 810 is configured to determine whether to forward the first indication information to a second terminal device based on the wake-up signal.

In one possible implementation, the sending module 820 is configured to:

transmitting terminal type information and measurement information to the access network equipment; the terminal type information indicates whether the first terminal device is a power consumption insensitive terminal device, and the measurement information indicates a position of the first terminal device and coverage conditions of a wake-up receiver WUR link and a main link of the first terminal device.

In a possible implementation manner, the first indication information is an identity of the second terminal device; the processing module 810 is specifically configured to:

In a possible implementation manner, the first indication information is the preset field value; the processing module 810 is specifically configured to:

Fig. 9 is a schematic block diagram of a communication device 900 provided in an embodiment of the present application. The communication device 900 is, for example, a second terminal apparatus 900.

The second terminal device 900 comprises a receiving module 930. Optionally, a processing module 910 and a sending module 920 may also be included. The second terminal device 900 may be a second terminal device, or may be a chip applied in the second terminal device or other combination device, component, etc. having the functions of the second terminal device. When the second terminal device 900 is a second terminal device, the transmitting module 920 may be a transmitter, the receiving module 930 may be a receiver, the transmitter or the receiver may include an antenna, a radio frequency circuit, etc., and the processing module 910 may be a processor, which may include one or more CPUs. When the second terminal device 900 is a component having the above-described second terminal device function, the transmitting module 920 and the receiving module 930 may be radio frequency units, and the processing module 910 may be a processor. When the second terminal device 900 is a chip system, the transmitting module 920 and the receiving module 930 may be input/output interfaces of the chip, and the processing module 910 may be a processor of the chip system and may include one or more central processing units.

Wherein the processing module 910 may be configured to perform all operations performed by the second terminal device in the embodiment illustrated in fig. 2, except for transceiving operations, and/or other procedures for supporting the techniques described herein. The transmission module 920 may be used to perform all transmission operations performed by the second terminal device in the embodiment illustrated in fig. 2, and/or to support other processes for the techniques described herein. The receiving module 930 may be configured to perform all receiving operations performed by the second terminal device in the embodiment shown in fig. 2, e.g., to receive the first indication information sent by the first terminal device, and/or to support other processes of the techniques described herein.

In addition, the transmitting module 920 and the receiving module 930 may be one functional module that can perform both transmitting operations and receiving operations, and may be referred to as a transceiver module, for example, the transceiver module may be used to perform all transmitting operations and receiving operations performed by the second terminal device in the embodiment shown in fig. 2, for example, the transceiver module may be considered to be a transmitting module when performing transmitting operations and may be considered to be a receiving module when performing receiving operations; alternatively, the sending module 920 and the receiving module 930 may be two functional modules, where the sending module 920 and the receiving module 930 may be regarded as a generic term of the two functional modules, and the two functional modules are respectively a sending module 920 and a receiving module 930, where the sending module 920 is used to perform a sending operation, for example, the sending module 920 may be used to perform all sending operations performed by the second terminal device in the embodiment shown in fig. 2, and the receiving module 930 is used to perform receiving operations, for example, the receiving module 930 may be used to perform all receiving operations performed by the second terminal device in the embodiment shown in fig. 2.

The receiving module 930 is configured to receive a wake-up signal sent by the first terminal device; wherein, the wake-up signal carries first indication information;

the processing module 910 is configured to wake up a main link of the second terminal device based on the first indication information.

In a possible implementation manner, the sending module 920 is configured to:

transmitting measurement information to access network equipment; wherein the measurement information indicates a location of the second terminal device and a coverage of a wake-up receiver WUR link and a main link of the second terminal device.

In the case that the apparatus in this embodiment of the present application is an access network device, the apparatus may be shown in fig. 10. The apparatus 1000 includes one or more radio frequency units, such as a remote radio frequency unit (remote radio unit, RRU) 1010 and one or more baseband units (BBU) (also referred to as digital units, DUs) 1020. The RRU910 may be referred to as a transceiver module, which may include a transmitting module and a receiving module. The transmitting module corresponds to the transmitting module 720 in fig. 7, and the receiving module corresponds to the receiving module 730 in fig. 7. Alternatively, the transceiver module may also be referred to as a transceiver, transceiver circuitry, or transceiver, etc., which may include at least one antenna 1011 and a radio frequency unit 1012. The RRU1010 is mainly configured to receive and transmit a radio frequency signal and convert the radio frequency signal to a baseband signal, for example, to send a wake-up signal to a terminal device. The BBU1020 is mainly configured to perform baseband processing, control a base station, and the like. The RRU1010 and BBU1020 may be physically located together or physically separate, i.e., distributed base stations.

The BBU1020 is a control center of the base station, and may also be referred to as a processing module, and may correspond to the processing module 710 in fig. 7, and is mainly used for performing baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and so on. For example, the BBU (processing module) may be configured to control the base station to perform the operation procedure of the method embodiment described above with respect to the access network device, e.g. to determine a wake-up signal, etc.

In one example, the BBU1020 may be configured by one or more single boards, where the multiple single boards may support radio access networks of a single access system (such as an LTE network), or may support radio access networks of different access systems (such as an LTE network, a 5G network, or other networks). The BBU1020 further comprises a memory 1021 and a processor 1022. The memory 1021 is used to store necessary instructions and data. The processor 1022 is configured to control the base station to perform necessary actions, for example, to control the base station to perform the operation procedure related to the access network device in the above method embodiment. The memory 1021 and processor 1022 may serve one or more boards. That is, the memory and the processor may be separately provided on each board. It is also possible that multiple boards share the same memory and processor. In addition, each single board can be provided with necessary circuits.

The embodiment of the application provides a communication system. The communication system may comprise the access network device referred to in the embodiment shown in fig. 2 described above. The access network device is, for example, the access network device 700 in fig. 7 or the apparatus 1000 in fig. 10.

Optionally, the communication system may further comprise a first terminal device as referred to in the embodiment shown in fig. 2 described above. The first terminal device is for example the first terminal device 800 in fig. 8.

Optionally, the communication system may further comprise a second terminal device as referred to in the embodiment shown in fig. 2 described above. The second terminal device is, for example, the second terminal device 900 in fig. 9.

The embodiment of the application further provides a computer readable storage medium, where the computer readable storage medium is used to store a computer program, where the computer may implement the flow related to the access network device in the embodiment shown in fig. 2 and provided by the foregoing method embodiment when the computer program is executed by a computer.

The embodiment of the application further provides a computer readable storage medium, where a computer program is stored, where the computer program when executed by a computer may implement the flow related to the first terminal device in the embodiment shown in fig. 2 and provided by the foregoing method embodiment.

The embodiment of the application further provides a computer readable storage medium, where a computer program is stored, where the computer program when executed by a computer may implement the flow related to the second terminal device in the embodiment shown in fig. 2 and provided by the foregoing method embodiment.

Embodiments of the present application also provide a computer program product, where the computer program product is configured to store a computer program, where the computer program when executed by a computer may implement the flow related to an access network device in the embodiment shown in fig. 2 provided by the foregoing method embodiment.

The embodiment of the present application further provides a computer program product, where the computer program product is configured to store a computer program, where the computer program when executed by a computer may implement the flow related to the first terminal device in the embodiment shown in fig. 2 provided by the foregoing method embodiment.

The embodiment of the present application further provides a computer program product, where the computer program product is configured to store a computer program, where the computer program when executed by a computer may implement the flow related to the second terminal device in the embodiment shown in fig. 2 provided by the foregoing method embodiment.

It should be appreciated that the processors referred to in the embodiments of the present application may be CPUs, but may also be other general purpose processors, digital signal processors (digital signal processor, DSPs), application specific integrated circuits (application specific integrated circuit, ASICs), off-the-shelf programmable gate arrays (field programmable gate array, FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the memory referred to in the embodiments of the present application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM).

Note that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, the memory (storage module) is integrated into the processor.

It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, or an access network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the embodiments of the present application is not limited thereto, and any person skilled in the art may easily think about changes or substitutions within the technical scope of the embodiments of the present application, and the changes or substitutions are intended to be covered by the scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

1. A wake-up signal transmission method, comprising:

2. The method of claim 1, wherein prior to the access network device determining the wake-up signal, further comprising:

the access network equipment acquires terminal type information and measurement information of any terminal equipment; the terminal type information indicates whether any terminal equipment is power consumption insensitive terminal equipment, and the measurement information indicates the position of any terminal equipment and the coverage condition of a wake-up receiver WUR link and a main link of any terminal equipment;

the access network device determines the first terminal device and the second terminal device based on the terminal type information and the measurement information.

3. The method according to claim 1 or 2, wherein the first terminal device is a power consumption insensitive terminal device, the coverage measurement of the WUR link of the first terminal device is not smaller than a first threshold, and the coverage measurement of the main link of the first terminal device is not smaller than a second threshold.

4. The method of claim 3, wherein the coverage measurement of the WUR link of the second terminal device is less than the first threshold, the coverage measurement of the primary link of the second terminal device is not less than the second threshold, and the distance of the second terminal device from the first terminal device is not greater than a third threshold.

5. The method according to any of claims 1-4, wherein the wake-up signal also carries forwarding indication information or adopts a predefined frame structure; wherein the forwarding indication information indicates whether the first terminal device forwards the first indication information to the second terminal device, and the predefined frame structure indicates the first terminal device to forward the first indication information to the second terminal device.

6. The method of claim 5, wherein the wake-up signal also carries second indication information; the forwarding indication information indicates whether the first terminal device forwards the first indication information to the second terminal device, including:

7. The method of claim 6, wherein the first indication information is an identity of the second terminal device, and the second indication information is a preset field value; or,

8. The method of claim 7, wherein the first indication information is an identity of the second terminal device; the access network device sends the wake-up signal to the first terminal device, so that the first terminal device determines whether to forward the first indication information to the second terminal device based on the wake-up signal, and the method comprises the following steps:

9. The method of claim 7, wherein the first indication information is the preset field value; the access network device sends the wake-up signal to the first terminal device, so that the first terminal device determines whether to forward the first indication information to the second terminal device based on the wake-up signal, and the method comprises the following steps:

10. A wake-up signal transmission method, comprising:

11. The method of claim 10, wherein prior to the first terminal device receiving the wake-up signal sent by the access network device, further comprising:

the first terminal equipment sends terminal type information and measurement information to the access network equipment; the terminal type information indicates whether the first terminal device is a power consumption insensitive terminal device, and the measurement information indicates a position of the first terminal device and coverage conditions of a wake-up receiver WUR link and a main link of the first terminal device.

12. The method according to claim 10 or 11, wherein the first terminal device is a power consumption insensitive terminal device, the coverage measurement of the WUR link of the first terminal device is not smaller than a first threshold, and the coverage measurement of the main link of the first terminal device is not smaller than a second threshold.

13. The method of claim 12, wherein the coverage measurement of the WUR link for the second terminal device is less than the first threshold, the coverage measurement of the primary link for the second terminal device is not less than the second threshold, and the distance of the second terminal device from the first terminal device is not greater than a third threshold.

14. A method according to any of claims 10-13, wherein the wake-up signal also carries forwarding indication information or adopts a predefined frame structure; wherein the forwarding indication information indicates whether the first terminal device forwards the first indication information to the second terminal device, and the predefined frame structure indicates the first terminal device to forward the first indication information to the second terminal device.

15. The method of claim 14, wherein the wake-up signal also carries second indication information; the forwarding indication information indicates whether the first terminal device forwards the first indication information to the second terminal device, including:

16. The method of claim 15, wherein the first indication information is an identity of the second terminal device, and the second indication information is a preset field value; or,

17. The method of claim 16, wherein the first indication information is an identity of the second terminal device; the first terminal device determining whether to forward the first indication information to the second terminal device based on the wake-up signal, including:

18. The method of claim 16, wherein the first indication information is the preset field value; the first terminal device determining whether to forward the first indication information to the second terminal device based on the wake-up signal, including:

19. A wake-up signal transmission method, comprising:

20. The method of claim 19, wherein prior to the second terminal device receiving the wake-up signal sent by the first terminal device, further comprising:

The second terminal equipment sends measurement information to access network equipment; wherein the measurement information indicates a location of the second terminal device and a coverage of a wake-up receiver WUR link and a main link of the second terminal device.

21. The method according to claim 19 or 20, wherein the first terminal device is a power consumption insensitive terminal device, the coverage measurement of the WUR link of the first terminal device is not smaller than a first threshold, and the coverage measurement of the main link of the first terminal device is not smaller than a second threshold.

22. The method of claim 21, wherein the coverage measurement of the WUR link for the second terminal device is less than the first threshold, the coverage measurement of the primary link for the second terminal device is not less than the second threshold, and the distance of the second terminal device from the first terminal device is not greater than a third threshold.

23. An access network device, comprising:

a transceiver for transceiving signals with other devices;

a processor coupled to the memory for executing the computer program stored in the memory for implementing the method according to any one of claims 1-9 based on the transceiver.

24. A first terminal device, comprising:

a transceiver for transceiving signals with other devices;

a processor coupled to the memory for executing the computer program stored in the memory for implementing the method according to any one of claims 10-18 based on the transceiver.

25. A second terminal device, comprising:

a transceiver for transceiving signals with other devices;

a processor coupled to the memory for executing the computer program stored in the memory for implementing the method according to any one of claims 19-22 based on the transceiver.

26. A communication system comprising an access network device according to claim 23, a first terminal device according to claim 24, and a second terminal device according to claim 25.

27. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program, which when run on a computer causes the computer to perform the method according to any one of claims 1-9, or causes the computer to perform the method according to any one of claims 10-18, or causes the computer to perform the method according to any one of claims 19-22.

28. A chip system, the chip system comprising:

a communication interface for communicating with other devices;

a processor for causing a communication device on which the chip system is mounted to perform the method of any one of claims 1-9 or to perform the method of any one of claims 10-18 or to perform the method of any one of claims 19-22.