Method and device for waking up terminal equipment, network equipment and terminal equipment

Abstract

Provided are a method and apparatus for waking up a terminal device, a network device, and a terminal device, the method comprising: a first terminal device receiving configuration information of a first wakeup indication and configuration information of a second wakeup indication from a network device, the first wakeup indication being used for indicating whether the first terminal device is waken up, and the second wakeup indication being used for indicating whether the first terminal device is waken up; the second awakening indication is used for indicating whether at least one terminal device including the first terminal device is awakened or not; and the first terminal device detects the first wake-up indication and the second wake-up indication according to the configuration information of the first wake-up indication and the configuration information of the second wake-up indication. According to the technical scheme, the terminal equipment can be awakened when needed, the situation that the terminal equipment needs to be awakened but is not awakened is reduced or avoided, and therefore the possibility of data receiving and sending time delay caused by the situation is reduced or avoided.

Description

[0001] This application is a divisional application of the original application with the application number 201910366422.3 and the original filing date of May 03, 2019, and the entire contents of the original application are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of communication, and more particularly, to a method and apparatus for waking up a terminal device, a network device and a terminal device. BACKGROUND

[0003] In order to save the power consumption of a terminal device, a network device can configure a discontinuous reception (DRX) mechanism for a terminal device in a radio resource control (RRC) connected state, so that the terminal device can be woken up to listen to a physical downlink control channel (PDCCH) when it needs to listen, and enter a sleep state when it does not need to listen.

[0004] Generally, the network device can send a wake-up indication to the terminal device before the terminal device needs to be woken up, to indicate whether the terminal device needs to be woken up.

[0005] In some cases, the network device needs to wake up the terminal device, but the terminal device does not detect the wake-up indication and thus considers that it does not need to be woken up, and will not listen to the PDCCH, which can cause the terminal device to miss a scheduling opportunity in a DRX cycle and increase the data transmission delay. SUMMARY

[0006] The present application provides a method and apparatus for waking up a terminal device, a network device and a terminal device, which can ensure that the terminal device can be woken up when needed, and reduce or avoid the data transmission delay problem caused by the terminal device not being woken up when it needs to be woken up.

[0007] In a first aspect, a method for waking up a terminal device is provided, comprising: a first terminal device receiving configuration information of a first wake-up indication and configuration information of a second wake-up indication from a network device, the first wake-up indication being used to indicate whether the first terminal device is woken up, and the second wake-up indication being used to indicate whether at least one terminal device including the first terminal device is woken up; and the first terminal device detecting the first wake-up indication and the second wake-up indication according to the configuration information of the first wake-up indication and the configuration information of the second wake-up indication.

[0008] In the technical solution of the present application, the network device configures the first terminal device with the first wake-up indication and the second wake-up indication instead of only the first wake-up indication, wherein the first wake-up indication and the second wake-up indication can both be used to indicate whether the first terminal device is woken up, the first terminal device can perform subsequent operations by detecting the first wake-up indication and the second wake-up indication, the opportunity of the first terminal device being woken up can be increased, and thus the data transmission delay problem caused by the terminal device needing to be woken up but not being woken up can be reduced or avoided.

[0009] Specifically, the first wake-up indication and the second wake-up indication can both be used to indicate whether the first terminal device is woken up, the first terminal device can perform subsequent operations according to the indication of the network device regardless of whether the first wake-up indication or the second wake-up indication is detected or both the first wake-up indication and the second wake-up indication are detected, and in the case that one of the wake-up indications is not detected, the first terminal device can also perform corresponding behavior according to the other wake-up indication instead of being woken up by default in the case that the wake-up indication is not detected. Therefore, the technical solution of the present application can increase the opportunity of the terminal device being woken up in the case that the terminal device needs to be woken up, reduce or avoid the case that the terminal device needs to be woken up but is not woken up, and thus reduce or avoid the data transmission delay problem caused by the terminal device needing to be woken up but not being woken up.

[0010] The case that the terminal device needs to be woken up but is not woken up can be that the network device sends the wake-up indication but the terminal device does not correctly receive the wake-up indication due to poor channel quality, terminal device mis-detection or missed detection, and thus the terminal device is not woken up, or the case that the network device side does not send the wake-up indication due to insufficient time-frequency resources for sending the wake-up indication, network device side blocking, and the like, and thus the terminal device cannot receive the wake-up indication and is not woken up.

[0011] In combination with the first aspect, in a possible implementation manner, the method further includes: when the first terminal device detects the second wake-up indication but does not detect the first wake-up indication, the first terminal device determines whether to be woken up according to the second wake-up indication.

[0012] The network device can send the first wake-up indication and the second wake-up indication to the first terminal device, or only send the second wake-up indication. When the network device sends the first wake-up indication and the second wake-up indication, the first terminal device can perform subsequent operations according to the second wake-up indication even if the first wake-up indication is not detected, and the case that the network device needs to be woken up but is not woken up by default due to not detecting the first wake-up indication is avoided.

[0013] With reference to the first aspect, in a possible implementation form, the first terminal device determines to wake up according to the second wake-up indication when the first terminal device detects the second wake-up indication but does not detect the first wake-up indication.

[0014] When the first terminal device does not detect the first wake-up indication, the first terminal device can determine to wake up according to the second wake-up indication, which reduces or avoids a case where the first terminal device needs to be woken up but is not woken up by default due to not detecting the first wake-up indication.

[0015] With reference to the first aspect, in a possible implementation form, the first terminal device determines whether to wake up according to the first wake-up indication when the first terminal device detects the first wake-up indication and the second wake-up indication.

[0016] With reference to the first aspect, in a possible implementation form, the first terminal device determines not to wake up when the first terminal device does not detect the first wake-up indication and the second wake-up indication.

[0017] With reference to the first aspect, in a possible implementation form, the first wake-up indication is contained in a first wake-up channel for the first terminal device, or contained in a first wake-up channel for a first group of terminal devices including the first terminal device.

[0018] It should be understood that the first wake-up channel for the first terminal device can be understood as corresponding to the first terminal device, and the first wake-up channel for the first group of terminal devices including the first terminal device can be understood as corresponding to the first group of terminal devices.

[0019] With reference to the first aspect, in a possible implementation form, the second wake-up indication is a second wake-up signal, or the second wake-up indication is contained in a second wake-up channel for a second group of terminal devices including the first terminal device.

[0020] It should be understood that the second wake-up channel for the second group of terminal devices including the first terminal device can be understood as corresponding to the second group of terminal devices.

[0021] With reference to the first aspect, in a possible implementation form, the number of the second group of terminal devices is greater than the number of the first group of terminal devices.

[0022] With reference to the first aspect, in a possible implementation form, the first wake-up indication and the second wake-up indication are both in a physical downlink control channel (PDCCH).

[0023] In a possible implementation manner of the first aspect, the channel where the first wake-up indication is located is a PDCCH, and the second wake-up indication is a first demodulation reference signal.

[0024] Optionally, the first demodulation reference signal is a wideband demodulation reference signal.

[0025] When the demodulation reference signal is a wideband demodulation reference signal, the frequency domain bandwidth occupied by the demodulation reference signal is greater than that of general downlink control information (DCI), and the demodulation reference signal is continuous in resource blocks in the frequency domain. Using the demodulation reference signal to carry the second wake-up indication can multiplex existing air interface resources, reduce resource overhead of the second wake-up indication, and improve detection accuracy due to better detection performance of the demodulation reference signal.

[0026] In a possible implementation manner of the first aspect, the first wake-up indication and the second wake-up indication are different demodulation reference signals.

[0027] In a possible implementation manner of the first aspect, the configuration information of the second wake-up indication includes transmission occasion information of the second wake-up indication.

[0028] In a possible implementation manner of the first aspect, the configuration information of the second wake-up indication includes a first scrambling code of the second wake-up indication, the first demodulation reference signal is scrambled by using the first scrambling code, the second demodulation reference signal is scrambled by using a second scrambling code, and the first scrambling code is different from the second scrambling code.

[0029] Optionally, the first scrambling code and the second scrambling code are orthogonal, and the first demodulation reference signal and the second demodulation reference signal can be orthogonally multiplexed without interference.

[0030] The first terminal device can determine whether the second wake-up indication is transmitted according to whether the demodulation reference signal exists or according to whether the scrambling codes are different.

[0031] In a possible implementation manner of the first aspect, the first wake-up indication and the second wake-up indication are used to indicate whether the first terminal device needs to detect a PDCCH for scheduling data in a discontinuous reception (DRX) cycle.

[0032] In a second aspect, a method for waking up a terminal device is provided, including: a network device sending configuration information of a first wake-up indication and configuration information of a second wake-up indication to a first terminal device, the first wake-up indication being used to indicate whether the first terminal device is woken up, and the second wake-up indication being used to indicate whether at least one terminal device including the first terminal device is woken up; and the network device sending the second wake-up indication to the first terminal device, or the network device sending the first wake-up indication and the second wake-up indication to the first terminal device.

[0033] In the technical solution of the present application, the network device configures the first wake-up indication and the second wake-up indication for the first terminal device, instead of only configuring the first wake-up indication, wherein both the first wake-up indication and the second wake-up indication can be used to indicate whether the first terminal device is woken up, and the first terminal device can perform subsequent operations by detecting the first wake-up indication and the second wake-up indication, thereby increasing the chance of the first terminal device being woken up, and reducing or avoiding the problem of data transmission delay caused by the terminal device needing to be woken up but not being woken up.

[0034] In combination with the second aspect, in a possible implementation manner, the network device sends the second wake-up indication to the first terminal device, including: when the network device needs to wake up the first terminal device, the network device sends the second wake-up indication to the first terminal device, and the second wake-up indication is used to indicate that the at least one terminal device is woken up.

[0035] When the network device has multiple first wake-up indications to be sent at the same time within a period of time, and lacks sufficient time-frequency resources for sending the first wake-up indications, the network device can only send one second wake-up indication to indicate that the at least one terminal device is woken up, thereby solving the problem that the network device cannot simultaneously send wake-up indications to multiple terminal devices due to blocking, and further reducing or avoiding the situation that the terminal devices need to be woken up but cannot be woken up due to not receiving the wake-up indications sent by the network device, thereby avoiding the possibility of part of the data transmission delay.

[0036] In combination with the second aspect, in a possible implementation manner, the network device sends the first wake-up indication and the second wake-up indication to the first terminal device, including: when the network device needs to wake up the first terminal device, the network device sends the first wake-up indication and the second wake-up indication to the first terminal device, the first wake-up indication is used to indicate that the first terminal device is woken up, and the second wake-up indication is used to indicate that the at least one terminal device is woken up or is not woken up.

[0037] When the network device needs to wake up the first terminal device, the network device can send the first wake-up indication and the second wake-up indication to indicate that the first terminal device is woken up, thereby increasing the chance of waking up the first terminal device, reducing or avoiding the situation that the first terminal device needs to be woken up but cannot be woken up, and avoiding the possibility of part of data transmission delay.

[0038] With reference to the second aspect, in a possible implementation, the at least one terminal device further includes a second terminal device, and the network device sends the first wake-up indication and the second wake-up indication to the first terminal device, including: when the network device does not need to wake up the first terminal device but needs to wake up the second terminal device, the network device sends the first wake-up indication and the second wake-up indication to the first terminal device, the first wake-up indication indicating that the first terminal device is not woken up, and the second wake-up indication indicating that the at least one terminal device is woken up.

[0039] The method further includes: when the network device does not need to wake up the first terminal device but needs to wake up the second terminal device, the network device sends the second wake-up indication to the second terminal device; or when the network device does not need to wake up the first terminal device but needs to wake up the second terminal device, the network device sends a third wake-up indication and the second wake-up indication to the second terminal device, the third wake-up indication indicating that the second terminal device is woken up.

[0040] When the network device needs part of terminal devices in a plurality of terminal devices to be woken up but another part of terminal devices not to be woken up, the network device sends a second wake-up indication to the plurality of terminal devices to indicate that the plurality of terminal devices are woken up, and sends a wake-up indication for a terminal device that does not need to be woken up to the terminal device that does not need to be woken up, and the wake-up indication for the terminal device that does not need to be woken up has a higher priority than the second wake-up indication, so that the terminal device that needs to be woken up can be woken up and the terminal device that does not need to be woken up can not be woken up.

[0041] With reference to the second aspect, in a possible implementation, the first wake-up indication is included in a first wake-up channel for the first terminal device, or is included in a first wake-up channel for a first group of terminal devices including the first terminal device.

[0042] With reference to the second aspect, in a possible implementation, the second wake-up indication is a second wake-up signal, or the second wake-up indication is included in a second wake-up channel for a second group of terminal devices including the first terminal device.

[0043] With reference to the second aspect, in a possible implementation manner, the first wake-up indication and the second wake-up indication are both located in a physical downlink control channel (PDCCH).

[0044] With reference to the second aspect, in a possible implementation manner, the first wake-up indication is located in a PDCCH, and the second wake-up indication is a first demodulation reference signal.

[0045] With reference to the second aspect, in a possible implementation manner, the configuration information of the second wake-up indication includes transmission occasion information of the second wake-up indication.

[0046] With reference to the second aspect, in a possible implementation manner, the configuration information of the second wake-up indication includes a first scrambling code of the second wake-up indication, the first demodulation reference signal is scrambled by using the first scrambling code, a second demodulation reference signal is scrambled by using a second scrambling code, and the first scrambling code is different from the second scrambling code.

[0047] With reference to the second aspect, in a possible implementation manner, the first wake-up indication and the second wake-up indication are used to indicate whether the first terminal device needs to detect a PDCCH for scheduling data in a discontinuous reception (DRX) cycle.

[0048] A third aspect provides a method for waking up a terminal device, including: receiving, by a first terminal device, configuration information of a first wake-up indication from a network device, the first wake-up indication being used to indicate whether the first terminal device is woken up; and detecting, by the first terminal device, the first wake-up indication according to the configuration information of the first wake-up indication.

[0049] With reference to the third aspect, in a possible implementation manner, the method further includes: when the first terminal device does not detect the first wake-up indication, determining, by the first terminal device, that the first terminal device is woken up.

[0050] That is, the first terminal device is woken up by default when the first wake-up indication is not detected, which reduces or avoids a case where the first terminal device needs to be woken up but is not woken up by default due to the first wake-up indication not being detected.

[0051] A fourth aspect provides a terminal device, including a module or unit for performing the method in the first aspect or any possible implementation manner of the first aspect, or including a module or unit for performing the method in the third aspect.

[0052] A fifth aspect provides a network device, including a module or unit for performing the method in the second aspect or any possible implementation manner of the second aspect.

[0053] In a sixth aspect, a communication apparatus is provided, which comprises at least one processor and a communication interface, wherein the communication interface is configured to enable the communication apparatus to interact with another communication apparatus, and wherein the at least one processor is configured to cause the communication apparatus to perform the method in the first aspect or any possible implementation of the first aspect, or to perform the method in the third aspect.

[0054] Optionally, the communication apparatus in the sixth aspect can be a terminal device, or can be a component (for example, a chip or a circuit, etc.) for a terminal device.

[0055] In a seventh aspect, a communication apparatus is provided, which comprises at least one processor and a communication interface, wherein the communication interface is configured to enable the communication apparatus to interact with another communication apparatus, and wherein the at least one processor is configured to cause the communication apparatus to perform the method in the second aspect or any possible implementation of the second aspect.

[0056] Optionally, the communication apparatus in the seventh aspect can be a network device, or can be a component (for example, a chip or a circuit, etc.) for a network device.

[0057] In an eighth aspect, a chip system is provided, which comprises a processor, configured to implement the functions of the terminal device in the first aspect or any possible implementation of the first aspect, or to implement the functions of the terminal device in the third aspect, for example, generating, receiving, sending, or processing data and / or information related to the methods described above. In a possible design, the chip system further comprises a memory, configured to store program instructions and data necessary for the terminal device. The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0058] In a ninth aspect, a chip system is provided, which comprises a processor, configured to implement the functions of the network device in the second aspect or any possible implementation of the second aspect, for example, generating, receiving, sending, or processing data and / or information related to the methods described above. In a possible design, the chip system further comprises a memory, configured to store program instructions and data necessary for the network device. The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0059] In a tenth aspect, a computer readable storage medium is provided, which stores instructions, and when the instructions run on a computer, the computer is caused to perform the method in the first aspect or any possible implementation of the first aspect, or to perform the method in the third aspect.

[0060] In a eleventh aspect, a computer readable storage medium is provided, and the computer readable storage medium stores instructions, when the instructions are run on a computer, the computer is caused to perform the method in the second aspect or any possible implementation manner of the second aspect.

[0061] In a twelfth aspect, a computer program product is provided, and the computer program product stores instructions, when the computer program product is run on a computer, the computer is caused to perform the method in the first aspect or any possible implementation manner of the first aspect, or the computer is caused to perform the method in the third aspect.

[0062] In a thirteenth aspect, a computer program product is provided, and the computer program product stores instructions, when the computer program product is run on a computer, the computer is caused to perform the method in the second aspect or any possible implementation manner of the second aspect.

[0063] In a fourteenth aspect, a communication system is provided, and the communication system includes the terminal device in the fourth aspect and the network device in the fifth aspect, or the communication system includes the communication apparatus in the sixth aspect and the communication apparatus in the seventh aspect. BRIEF DESCRIPTION OF DRAWINGS

[0064] Figure 1 is a schematic diagram of an application scenario of an embodiment of the present application; Figure 2 is a schematic diagram of a state of a terminal device in a DRX mode according to an embodiment of the present application; Figure 3 is a schematic diagram of a state of a terminal device in a DRX mode with a wake-up indication according to an embodiment of the present application; Figure 4 is a schematic flowchart of a method for waking up a terminal device according to an embodiment of the present application; Figure 5 is a schematic diagram of a state of a terminal device in a method for waking up a terminal device according to an embodiment of the present application; Figure 6 is a schematic diagram of a state of a terminal device in a method for waking up a terminal device according to another embodiment of the present application; Figure 7 is a schematic diagram of a state of a terminal device in a method for waking up a terminal device according to yet another embodiment of the present application; Figure 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application; Figure 9 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application; Figure 10 is a schematic structural diagram of a network device according to another embodiment of the present application; Figure 11 is a schematic structural diagram of a communication device provided by another embodiment of the present application. DETAILED DESCRIPTION

[0065] The technical solutions in the present application will be described below with reference to the drawings.

[0066] The technical solutions of the embodiments of the present application can be applied to various communication systems, including but not limited to a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a worldwide interoperability for microwave access (WiMAX) communication system, a 5th-generation (5G) mobile communication system, a narrow band internet of things (NB-IoT) system, an enhanced machine-type communication (eMTC) system, or an LTE-machine-to-machine (LTE-M) system, etc. The 5G mobile communication system can also be referred to as a new radio (NR) system.

[0067] The technical solutions of the embodiments of the present application can be applied to wireless communication between communication devices. The communication devices can perform wireless communication by using air interface resources. The communication devices can include network devices and terminal devices, and the network devices can also be referred to as network side devices, and the terminal devices can also be referred to as user equipment (UE). The air interface resources can include at least one of time domain resources, frequency domain resources, code resources, and space resources. In the embodiments of the present application, at least one can also be described as one or more, and the multiple can be two, three, four or more, which is not limited in the present application. It should be noted that in the embodiments of the present application, the term "wireless communication" can also be referred to as "communication", and the term "communication" can also be described as "data transmission", "signal transmission", "information transmission" or "transmission", etc. In the embodiments of the present application, the transmission can include sending or receiving. Exemplarily, the transmission can be uplink transmission, for example, the terminal device can send a signal to the network device; the transmission can also be downlink transmission, for example, the network device can send a signal to the terminal device.

[0068] For the convenience of understanding, the following first introduces several concepts involved in the present application.

[0069] Physical downlink control channel (PDCCH): used to carry downlink control information (DCI), the transmitted information can include common control information (such as scheduling information of system information, scheduling information of paging information, etc.) and user-specific information (such as downlink resource allocation indication, uplink grant (UL grant), uplink power control parameter, and uplink retransmission information, etc.).

[0070] Downlink control information (DCI): has multiple formats, different DCI formats can be used to indicate different control information, such as DCI for scheduling data (including terminal device uplink data and terminal device downlink data), DCI for indicating slot format, DCI for indicating interrupted transmission, etc. The resource granularity of PDCCH is control channel element (CCE), each CCE contains 6 resource element groups (REGs), each REG contains 12 resource elements (REs), that is, a CCE is a continuous resource block containing 72 REs. The system may allocate 1 / 2 / 4 / 8 logically continuous CCEs for transmission according to the channel quality for each DCI, 1, 2, 4, and 8 CCEs can be referred to as aggregation level (AL), that is, the number of CCEs that make up a PDCCH channel.

[0071] Blind detect (BD): PDCCH is an instruction sent by the network device, and the terminal device may be configured to detect multiple DCI formats, but not all configured for the terminal are always transmitted by the network device. At the same time, there are multiple possible time-frequency resource sets that can be used to send PDCCH for the possible time-frequency resources of sending PDCCH, but the network device only selects one of them for sending in the sending of PDCCH. Therefore, the terminal cannot exactly know the PDCCH format actually sent by the base station and the time-frequency resource actually sent. Therefore, the detection of PDCCH belongs to blind detection. The terminal device expects to obtain a certain DCI according to its current state, and uses the corresponding radio network temporary identity (RNTI) to do cyclic redundancy check (CRC) on the DCI for different expected information. If the CRC check is successful, the terminal device knows that this information is sent by the network to the terminal, and further analyzes the content carried in the DCI.

[0072] PDCCH candidate: PDCCH candidate corresponds to a possible PDCCH sending time-frequency resource, and one PDCCH candidate corresponds to the aggregation of aggregation level (AL) CCEs. There can be multiple PDCCH candidates in a control resource set (CORESET): for example, a CORESET control area contains 32 CCEs, and the CORESET can contain 8 PDCCH candidates with aggregation level 4, 4 PDCCH candidates with aggregation level 8 and 2 PDCCH candidates with aggregation level 16. Different PDCCH candidates may have overlapping CCE resources.

[0073] Search space set: one search space corresponds to a set of multiple PDCCH candidates with the same aggregation level (AL) detected by the UE, while the search space set is an aggregation of multiple search spaces corresponding to multiple aggregation levels. The communication protocol divides the available CCEs into two search spaces to improve the blind detection efficiency of the terminal device, namely the common search space and the UE-specific search space, and searches for different information in different spaces. The data transmitted in the common search space mainly includes scheduling DCI of system information, scheduling DCI of random access response (RAR), scheduling DCI of paging message, etc., which are searched by each user. For the UE-specific search space, the search starting point of each UE is different, and the space size is related to the AL. One search space is defined for a certain CCE aggregation level, and one UE can have multiple search spaces. When the UE searches, it generally does not know the aggregation level of the CCE occupied by the PDCCH, so the UE will try all possible configurations. For a search space set, the corresponding aggregation level can be configured by the base station implementation, which can be configured from the aggregation levels of 1, 2, 4, 8, and 16.

[0074] Therefore, the blind detection of the terminal device is that the UE terminal decodes and demodulates all PDCCH candidates in the corresponding search space set, and performs CRC check on the decoded bits according to the preset rule. Specifically, the network will configure different RNTIs to the terminal according to different DCIs, and perform XOR masking operation on the RNTIs according to the preset rule and all or part of the CRC bits. If the terminal device checks the CRC in the DCI decoded by the above blind decoding according to the target RNTI and passes the check, the terminal device detects the PDCCH, and considers that the DCI carried on the PDCCH is sent to the terminal.

[0075] Idle state (IDLE state): when the UE completes camping in a certain cell, the UE can be said to enter the "idle state" or "IDLE state", and the radio resource control (RRC) connection of the UE in the idle state is not established, so the UE can be called as the UE in the RRC idle state.

[0076] Connected state (CONNECTED state): if the UE subsequently completes the random access process and establishes an RRC connection with the network (base station), the UE can be said to enter the "connected state" or "CONNECTED state", and the RRC connection of the UE in the connected state is established, so the UE can be called as the UE in the RRC connected state.

[0077] Discontinuous reception (DRX) mechanism: defined in physical layer media access control (MAC). The DRX mechanism can let the UE enter a sleep mode periodically at some time (which can be defined as inactive time) and not listen to the PDCCH masked by the cell radio network temporary identity (C-RNTI), and when it needs to listen (which can be defined as active time), it wakes up from the sleep mode and listens to these PDCCHs, which can reduce the power consumption of the UE. For example, for NR, the DRX mechanism in the connected state (which can be referred to as C-DRX) does not need to listen to the PDCCH masked by the cell radio network temporary identity (C-RNTI), the configured scheduling RNTI (CS-RNTI), the interruption RNTI (INT-RNTI), the slot format indicator RNTI (SFI-RNTI), the semi-persistent channel state information RNTI (SP-CSI-RNTI), the physical uplink control channel (PUCCH) transmit power control RNTI (TPC-PUCCH-RNTI), the physical uplink shared channel (PUSCH) transmit power control RNTI (TPC-PUSCH-RNTI), and the sounding reference signal (SRS) transmit power control RNTI (TPC-SRS-RNTI) in the inactive time, and needs to listen to the PDCCH masked by these RNTIs in the active time.For NR system, the transmission of DCI masked with system information RNTI (SI-RNTI), paging RNTI (P-RNTI), random access RNTI (RA-RNTI) and temporary cell radio network temporary identity (TC-RNTI) is not affected by C-DRX mechanism. According to the state of the UE, if the DRX mechanism is configured, the DRX mechanism can be divided into idle state DRX (Idle-DRX) and connected state DRX (Connected-DRX, referred to as C-DRX).

[0078] Discontinuous reception cycle (DRX cycle): also known as DRX cycle, is the basic time unit in DRX state, the length of DRX cycle is called DRX period. The DRX period is divided into non-active period (also known as non-active time) and active period (also known as active time) according to the behavior of UE, wherein: The state of the UE in the non-active time in the present application can be referred to as a sleep state (sleep, also referred to as DRX_OFF), and the UE in the sleep state can turn off communication devices such as radio transceivers (or receivers) and baseband processors based on implementation selection to reduce power consumption, or although the radio devices are turned on, only some low-power monitoring and detection processes are performed, such as monitoring some messages that the UE must monitor, such as paging messages, broadcast messages, system messages, and the like. It should be noted that the UE in the non-active time only does not receive a type of DCI in the PDCCH, such as DCI for scheduling data, but can receive other DCI in the PDCCH that is not affected by whether the UE is in the active time, and receive data from other physical channels, such as a physical downlink shared channel (PDSCH), an acknowledgment (ACK) message, a negative-acknowledgment (NACK), and the like. For example, for NR, the C-DRX mechanism does not need to monitor DCI masked with C-RNTI, CS-RNTI, INT-RNTI, SFI-RNTI, SP-CSI-RNTI, TPC-PUCCH-RNTI, TPC-PUSCH-RNTI, and TPC-SRS-RNTI in the non-active time, but needs to monitor DCI masked with these RNTIs in the active time. For the NR system, the transmission of DCI masked with SI-RNTI, P-RNTI, RA-RNTI, and TC-RNTI is not affected by the C-DRX mechanism.

[0079] In the present application, the state of the UE in the active time can be referred to as a wake-up state (wake up, also referred to as DRX_ON), and when the DRX cycle enters the active time, the UE will be woken up and monitor and receive the PDCCH, so the wake-up state in the embodiments of the present application is referred to as the active state.

[0080] As another example in the present application, when the UE is in the active time, the UE will be woken up and monitor and receive PDCCH of a preset type, such as receiving DCI for scheduling user data, or for example, receiving DCI masked with C-RNTI, CS-RNTI, INT-RNTI, SFI-RNTI, SP-CSI-RNTI, TPC-PUCCH-RNTI, TPC-PUSCH-RNTI, and TPC-SRS-RNTI.

[0081] In the DRX mode of the connected state, the UE cannot always be in the sleep state or cannot always not listen to the preset type of PDCCH, and needs to periodically turn on the radio frequency transceiver to enter the active window, and continuously listen to the possible transmission of the preset type of PDCCH in the following period of time, which is called the DRX duration (on duration), which is controlled by the duration timer (on duration timer). Generally, the duration is a fixed length of time, which can be preconfigured. In the embodiments of the present application, the period of time in which the UE can listen to the PDCCH channel is referred to as the active time (or active period), and in the active time, the UE turns on the radio frequency transceiver and simultaneously listens to the preset type of PDCCH. The active time includes the duration, and can also include the time when other DRX related timers are running (for example, the inactivity timer (inactivity timer), the retransmission timer (retransmission timer), etc.). It should be noted that in general, the UE does not wake up only when the duration comes, but will wake up a period of time before the duration comes, and receive the downlink reference signal to perform time-frequency offset synchronization, to prevent the UE from causing the system clock and operating frequency to deviate from the base station clock and frequency domain due to long sleep; at the same time, the UE can also try to receive the downlink synchronization signal and update the system message to prevent the system message from deviating after the UE moves from one cell to another cell.

[0082] Wake-up indication: an indication information used to reduce the power consumption of the UE configured with the DRX cycle, when the network device considers that there is a need to send the preset type of PDCCH (for example, scheduling DCI) to the UE in the duration, the network device sends the wake-up indication to the UE in advance in a certain time or time period in the inactivity time before the duration, to inform the UE that there is DCI (for example, DCI for scheduling data, or informing the UE whether to start the duration timer, so that the UE wakes up and listens to the preset type of PDCCH (for example, DCI for scheduling uplink and downlink data) in the following duration. If the UE does not detect the wake-up indication, it is considered that there is no preset type of DCI sent to itself in the duration, for example, the UE considers that the base station will not send the scheduling DCI to the UE in the duration, and the UE will not wake up in the duration; or if the UE does not detect the wake-up indication, the UE does not start the duration timer, and since the duration timer is not started, the terminal will not detect the preset type of PDCCH (for example, the UE will not monitor the scheduling DCI) in the corresponding DRX cycle.

[0083] It should be noted that, for the convenience of understanding, in the embodiments of the present application, when describing the DRX mechanism, the terminal behavior of the UE in the active time and the non-active time is exemplarily described by whether the UE monitors the PDCCH, however, it should be understood that whether the UE monitors the PDCCH actually means whether the UE monitors the preset type of PDCCH. Without loss of generality, the embodiments of the present application are exemplarily described by whether the UE monitors the DCI (hereinafter referred to as scheduling DCI) for scheduling data, however, it should be understood that the embodiments of the present application are not limited to this. For example, in the NR system, the preset type of DCI includes the DCI masked by C-RNTI, CS-RNTI, INT-RNTI, SFI-RNTI, SP-CSI-RNTI, TPC-PUCCH-RNTI, TPC-PUSCH-RNTI and TPC-SRS-RNTI.

[0084] Figure 1 A schematic diagram showing the application scenario of the embodiments of the present application is shown. As shown in the figure, Figure 1 The application scenario can include a network device 110 and a terminal device 120.

[0085] The network device 110 can be a device for communicating with the terminal device 120, for example, the network device 110 can be a base station for accessing the terminal device 120 to a radio access network (RAN). For the convenience of understanding, the embodiments of the present application take the network device 110 as a base station for example. The base station can also be referred to as an access network device or an access network node. It can be understood that in systems using different wireless access technologies, the names of devices with base station functions may be different. For the convenience of description, the apparatuses providing wireless communication access functions for terminal devices in the embodiments of the present application are collectively referred to as base stations. Exemplarily, the network device 110 can be an evolved node B (eNB) in long term evolution (LTE), can also be a next generation node base station (gNB) in the fifth generation (5G) system, can also be a transmission and reception point (TRP), or a network device in a 5G network, etc. The network device 110 can have various forms, such as a macro base station, a micro base station, a relay station, and an access point, etc. One network device 110 can include one cell or multiple cells. In the embodiments of the present application, the apparatus for implementing the functions of the network device can be a network device, or an apparatus capable of supporting the network device to implement the functions, such as a chip system. In the technical solutions of the embodiments of the present application, the apparatus for implementing the functions of the network device is taken as the network device, and the network device is taken as the base station for example, the technical solutions provided by the embodiments of the present application are described.

[0086] The terminal device 120 can communicate with one or more core networks (CNs) via the access network device. The terminal device 120 can be a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); can also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal device 120 can also be called UE, access terminal, terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless network device, user agent or user equipment. The terminal device 120 can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a smart phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other devices connected to a wireless modem, a vehicle-mounted device, a wearable device, a unmanned aerial vehicle device or a terminal in Internet of Things, Internet of Vehicles, and any form of terminal in future networks, a relay user equipment or a terminal in future evolved public land mobile network (PLMN), etc. The embodiments of the present application are not limited thereto. For example, the terminal device 120 can be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a terminal device in industrial control, a terminal device in unmanned driving, a terminal device in remote medical treatment, a terminal device in smart power grid, a terminal device in smart city, a terminal device in smart home, etc. In the embodiments of the present application, the device for realizing the function of the terminal device can be the terminal device, or can be a device capable of supporting the terminal device to realize the function, such as a chip system. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices. In the technical solutions of the embodiments of the present application, the device for realizing the function of the terminal device is the terminal device, and the terminal device is taken as an example of UE to describe the technical solutions provided by the embodiments of the present application.

[0087] Network device 110 and terminal device 120 can transmit uplink and downlink signals through their respective transmission links. The transmission link from network device 110 to terminal device 120 can be called the downlink, and the transmission link from terminal device 120 to network device 110 can be called the uplink. When data needs to be transmitted between network device 110 and terminal device 120, terminal device 120 listens to the Physical Downlink Control Channel (PDCCH) sent by the downlink and sends and receives data according to the indication messages sent by network device 110. Since terminal device 120 does not always perform upload or download operations, most of the time, there is no data interaction between terminal device 120 and the network. If terminal device 120 continuously listens to the PDCCH during this time, it would obviously consume a lot of power. Therefore, under the premise of ensuring effective data transmission, a discontinuous reception (DRX) cycle can be configured for the UE in the connected state, so that the UE only turns on the receiver (e.g., antenna) to enter the active state to listen to the PDCCH during the necessary time period, and turns off the receiver to enter the inactive state during the remaining time, without listening to the PDCCH. Figure 2 A schematic diagram of the terminal device's status in DRX mode is shown.

[0088] like Figure 2 As shown in (a), a DRX cycle includes an active time (for ease of description, exemplarily shown in...). Figure 2 In diagram (a), the activation time equals the duration, and the inactive time is also shown. During the activation time, the UE needs to wake up and listen to the PDCCH. During the activation time, the UE is in an active state (wake-up state), and during the inactive time, the UE is in an inactive state (sleep state). The DRX mechanism in RRC connected state uses a combination of a timer and the DRX cycle. For example, if the UE listens to a PDCCH containing new data during the connected state duration, it will start an inactive timer and continue listening to the PDCCH for a period of time. During the effective period of the inactive timer (i.e., the working period of the inactive timer), once the UE receives a scheduling DCI sent to it on the PDCCH, the UE will restart the inactive timer and continue listening to the PDCCH for the effective period of the inactive timer. If the UE does not receive a scheduling DCI sent to it for a period of time, causing the inactive timer to time out, the UE enters the inactive time and does not listen to the preset type of PDCCH. If the network device does not configure a wake-up indication for the UE, the DRX cycle ends after a period of time, and the UE enters the next DRX cycle. Figure 2As shown in (b), at the start point of the next DRX cycle, the UE restarts the duration timer, and listens to the PDCCH and attempts to blindly detect the downlink DCI during the duration (i.e. the working period of the duration timer). If no scheduling DCI sent to the UE is detected within the valid period of the duration timer (i.e. the working period of the duration timer), the UE re-enters the inactive time (i.e. re-enters the inactive state) after the end of the duration. If a scheduling DCI sent to the UE for scheduling new data transmission is received within the valid period of the duration timer, the UE starts the inactive timer at the next symbol or slot after the symbol where the PDCCH of the scheduling DCI is located (which can also be understood as completing the DCI blind detection on the PDCCH), and continuously listens to the PDCCH during the valid period of the duration timer or the inactive timer. If no scheduling DCI sent to the UE is received within the valid period of the duration timer and the inactive timer, the UE re-enters the inactive time. If a scheduling DCI sent to the UE for scheduling new data transmission is received within the valid period of the duration timer, the UE starts the inactive timer, and continuously listens to the PDCCH during the valid period of the duration timer or the inactive timer. If a scheduling DCI sent to the UE for scheduling new data transmission is again received within the valid period of the duration timer and the inactive timer, the UE restarts the inactive timer, and still continuously listens to the PDCCH during the valid period of the duration timer or the inactive timer. Until no scheduling DCI sent to the UE is received within the valid period of the duration timer and the inactive timer, and the inactive timer expires, the UE re-enters the inactive time.

[0089] It should be noted that the restart of the inactive timer in the embodiments of the present application is for the case where the UE has initial transmission data scheduled, but not for the case of retransmission.

[0090] Therefore, in the DRX mechanism, the UE mainly relies on sleeping or not monitoring the preset type of PDCCH in the inactive state to save power consumption. In the inactive time, the UE can select to turn off the radio frequency transmitter and receiver, turn off the baseband processing chip and memory, or only keep the crystal oscillator clock based on implementation. As mentioned above, the DCI transmitted on the PDCCH can have different formats, so the PDCCH configured by the network device for the UE can have multiple different types. The UE configured with DRX only detects a type of DCI (i.e., the preset type of DCI) in the active time, and does not detect the type of DCI in the inactive time. The type of DCI can include C-RNTI, CS-RNTI, INT-RNTI, SFI-RNTI, SP-CSI-RNTI, TPC-PUCCH-RNTI, TPC-PUSCH-RNTI, and TPC-SRS-RNTI masked DCI. For other DCI, the UE needs to detect whether in the active time or in the inactive time, which is not affected by the DRX mechanism. For the convenience of understanding, the UE configured with DRX in the active time is taken as an example to illustrate the method in the embodiments of the present application, but it should be understood that the method in the embodiments of the present application is also applicable to other DCI in the type of DCI.

[0091] In most cases, the network device does not send scheduling DCI to the UE in the active time in all DRX cycles, and the UE still needs to continuously monitor the PDCCH in the active time in all DRX cycles and constantly try to blindly detect whether there is scheduling DCI sent to itself. Such blind detection operation actually still wastes a large amount of power consumption of the UE. To further reduce the power consumption of the UE, a PDCCH-based wake-up indication is introduced in the DRX mechanism. The state and behavior of the UE configured with the wake-up indication in the DRX mechanism are described in detail below. Figure 3 The state and behavior of the UE configured with the wake-up indication in the DRX mechanism are described in detail.

[0092] The PDCCH-based wake-up indication can be understood as a wake-up indication carried on the PDCCH. For example, the PDCCH-based wake-up indication can be information in a bit or bit field in the DCI carried on the PDCCH. For example, the PDCCH-based wake-up indication can be a bit field in the DCI carried on the PDCCH. Figure 3As shown, two DRX cycles are exemplarily shown, i.e. the first DRX cycle 310 and the second DRX cycle 320. The transmission timing of the wake-up indication is before the UE enters the active time and the search space of the PDCCH where the wake-up indication is located is in the non-active time in the DRX cycle, or the transmission timing of the wake-up indication is a period of time before the start of the duration of the corresponding DRX cycle. When the network considers that the scheduling DCI transmitted to the UE during the duration of the active time corresponding to the wake-up indication is used to schedule data transmission to the UE, the network device transmits the wake-up indication to the UE on the PDCCH where the wake-up indication is located. In other words, when the UE needs to be scheduled to transmit or receive data in the duration, and the scheduling DCI transmitted to the UE in the duration, the network device transmits the wake-up indication before the duration or a period of time at the start of the duration. For the UE, if the network device configures the wake-up indication, the UE can detect the wake-up indication transmitted using the PDCCH on the preset time-frequency resource before the duration of a DRX cycle or in the period of time at the start of the duration. If the UE detects the wake-up indication, it indicates that the UE needs to monitor the PDCCH to detect the scheduling DCI in the duration corresponding to the wake-up indication, and transmit or receive data according to the indication of the scheduling DCI. For example, the network device needs to transmit the scheduling DCI to the UE to schedule data to the UE in the duration of the first DRX cycle 310, and the network device transmits the wake-up indication before the duration of the first DRX cycle 310. Accordingly, the UE detects the wake-up indication and wakes up in the duration of the first DRX cycle 310 and starts the duration timer at the same time. The UE blindly detects the PDCCH and receives the scheduling DCI, and starts or restarts the non-active timer after receiving the scheduling DCI. If the UE does not receive the scheduling DCI transmitted to itself within the valid period of the non-active timer, the UE enters the non-active state after the non-active timer expires. The network device does not need to schedule the UE to transmit or receive data in the duration of the second DRX cycle 320, and the network device can not transmit the wake-up indication before the duration of the second DRX cycle 320. Accordingly, the UE does not detect the wake-up indication before the duration of the second DRX cycle 320, and the UE can not be woken up in the duration of the second DRX cycle 320, i.e. does not need to detect the scheduling DCI, so as to save power consumption.

[0093] It should be understood that the wake-up indication transmitted by the network device and the DRX cycle (or the duration in the DRX cycle) indicated by the wake-up indication for the UE to wake up are in an associated relationship, which can be one-to-one, one-to-many or many-to-one.

[0094] In some cases, the network device needs to wake up the UE, but due to resource constraints, the network device cannot send the wake-up indication to the UE or the UE does not detect the wake-up indication, the UE considers that there is no data scheduling in the corresponding DRX cycle, and thus will not be woken up and detect the scheduling DCI during the duration of the DRX cycle, resulting in the UE missing the scheduling opportunity of a DRX cycle and increasing the data transmission delay. For example, in some cases, the network device sends a wake-up indication, but due to UE miss detection or false detection, etc., the UE cannot successfully detect the wake-up indication, and the UE will not be woken up during the duration of the DRX cycle corresponding to the wake-up indication. In other cases, if the PDCCH used to send the wake-up indication to the UE and the PDCCH for other purposes (such as data scheduling, user group transmission format indication, power control, system information change indication, etc.) share the same search space, or the network device needs to send a wake-up indication to multiple UEs at the same time, the network device can not have enough downlink resources to send the wake-up indication, that is, the network device is blocked, and the network device cannot send the wake-up indication to the UE, which will also cause the UE to fail to detect the wake-up indication, and the UE will not be woken up during the duration of the DRX cycle corresponding to the wake-up indication.

[0095] Therefore, it is necessary to provide a method for waking up a terminal device, which can ensure that the terminal device can receive a wake-up indication when needed, reduce or avoid the situation that the network device needs to wake up the terminal device but the wake-up indication cannot be sent, and the resulting data transmission delay problem. The following describes the embodiments of the present application in detail. Figure 4 The embodiments of the present application are described in detail.

[0096] Figure 4 A schematic flowchart of a method for waking up a terminal device according to an embodiment of the present application is shown. The method can be performed by a network device and a first terminal device. The network device can be, for example, the network device 110 in Figure 1 , and the first terminal device can be, for example, the terminal device 120 in Figure 1 . The method includes steps S410-S420.

[0097] In step S410, the network device sends configuration information of a first wake-up indication and configuration information of a second wake-up indication to the first terminal device, and correspondingly, the first terminal device receives the configuration information of the first wake-up indication and the configuration information of the second wake-up indication from the network device.

[0098] In the embodiments of the present application, the first wake-up indication is a wake-up indication for the first terminal device.

[0099] The first wake-up indication is a wake-up indication for the first terminal device, and can be understood as corresponding to the first terminal device. The first wake-up indication is used to indicate whether the first terminal device is to be woken up.

[0100] The first wake-up indication can be in various forms.

[0101] As an example, the first wake-up indication can be included in a first wake-up channel for the first terminal device. The first wake-up channel for the first terminal device corresponds to the first terminal device, that is, the first wake-up channel for the first terminal device is dedicated to carrying the first wake-up indication.

[0102] Optionally, the first wake-up channel can be a physical downlink control channel (PDCCH).

[0103] Optionally, the first wake-up indication can be information of one or more bits in downlink control information (DCI) carried on the first wake-up channel (PDCCH). For example, setting a certain bit in the DCI to 1 can indicate that the first terminal device needs to be woken up, and setting the certain bit to 0 can indicate that the first terminal device does not need to be woken up. Accordingly, the first terminal device will wake up if it detects that the bit used to express the first wake-up indication is set to 1, and will not wake up if it detects that the bit used to express the first wake-up indication is set to 0.

[0104] In some possible implementations, the network device can also indicate that the first terminal device needs to be woken up by sending the first wake-up indication, and indicate that the first terminal device does not need to be woken up by not sending the first wake-up indication. Accordingly, the first terminal device will wake up if it receives the first wake-up indication, and will not wake up if it does not receive the first wake-up indication.

[0105] Optionally, the configuration information of the first wake-up indication can include configuration information of a control resource set (also referred to as a control resource set) in which the first wake-up channel (PDCCH) is located and configuration information of a search space of the first wake-up channel (PDCCH), by which the time-frequency resource location of the first wake-up channel for the first terminal device can be defined. Optionally, the configuration signal of the first wake-up indication can also include an RNTI corresponding to the first wake-up channel corresponding to the first terminal device or a user equipment identification (UE ID) of the first terminal device.

[0106] As another example, the first wake-up indication can be included in a first wake-up channel for a first group of terminal devices including the first terminal device. Wherein the first wake-up channel for the first group of terminal devices corresponds to the first group of terminal devices, i.e. the first wake-up channel for the first group of terminal devices is used to carry wake-up indications for the first group of terminal devices.

[0107] Optionally, the first wake-up channel can be a physical downlink control channel (PDCCH).

[0108] Optionally, the first wake-up indication can be information of bits in a downlink control information (DCI) carried on the PDCCH, and the first wake-up channel includes a wake-up indication corresponding to each terminal device in the first group of terminal devices. In other words, the first wake-up channel PDCCH can include a DCI, and different bit position information in the DCI corresponds to the wake-up indication of different terminals in the first group of terminal devices. The different bit position information in the DCI can correspond to each terminal device in the first group of terminal devices one by one, and some of the different bit position information in the DCI is the wake-up indication of the first terminal device (i.e. the first wake-up indication). In other words, the first wake-up channel PDCCH carries a DCI for the first group of terminal devices, and different bit fields in the DCI correspond to the wake-up indication of each terminal device in the first group of terminal devices. One bit field in the DCI corresponds to the wake-up indication of the first terminal device, and the information carried in the bit field can be the first wake-up indication, which indicates whether the first terminal device is woken up. The way the first wake-up indication indicates whether the first terminal device is woken up can be similar to the way when the first wake-up indication is included in the first wake-up channel for the first terminal device, and for brevity, it will not be repeated here.

[0109] Since one DCI bit information in the first wake-up channel corresponds to the first wake-up indication of the first terminal device, optionally, the configuration information of the first wake-up indication needs to include the bit field position in the one DCI corresponding to the first wake-up indication of the first terminal device in addition to the configuration information of the first wake-up indication when the first wake-up indication is included in the first wake-up channel for the first terminal device.

[0110] Optionally, the first wake-up indication can be information in a bit field in a downlink control information (DCI), and the DCI includes a bit field corresponding to each terminal device in the first group of terminal devices. In other words, the first wake-up signal PDCCH can include at least one DCI, and a certain DCI in the at least one DCI is a wake-up indication for the first group of terminal devices. The certain DCI can include a plurality of bit fields, and the plurality of bit fields have a corresponding relationship with each terminal device in the first group of terminal devices. Information in the plurality of bit fields is used to indicate whether the corresponding terminal device is woken up. A certain bit field in the plurality of bit fields corresponds to the first terminal device, and information in the certain bit field is a wake-up indication (i.e., the first wake-up indication) for the first terminal device. In other words, a certain DCI in the first wake-up channel carries a wake-up indication for the first group of terminal devices. For example, the certain DCI can include a plurality of bit fields, and information in a bit field can indicate whether a terminal device in the first group of terminal devices is woken up.

[0111] Optionally, the configuration information corresponding to the first wake-up indication can include configuration information of a control resource set where the first wake-up channel PDCCH is located and configuration information of a search space of the first wake-up channel PDCCH. The time-frequency resource location of the first wake-up channel for the first group of terminal devices including the first terminal device can be defined by the above-mentioned configuration information of the control resource set and the configuration information of the search space. Optionally, the configuration information of the first wake-up indication can also include an RNTI corresponding to the DCI for the first group of terminal devices in the first wake-up channel, or other UE IDs of the first group of terminal devices, and the like. Optionally, the configuration information of the first wake-up indication also needs to include the bit field position of the first wake-up indication for the first terminal device in the DCI corresponding to the first group of terminal devices.

[0112] In the embodiments of the present application, the second wake-up indication is a wake-up indication for at least one terminal device including the first terminal device.

[0113] The second wake-up indication is a wake-up indication for at least one terminal device including the first terminal device. It can be understood that the second wake-up indication corresponds to at least one terminal device including the first terminal device, and the second wake-up indication is used to indicate whether at least one terminal device including the first terminal device is woken up or the second wake-up indication is used to indicate that at least one terminal device including the first terminal device needs to be woken up.

[0114] Optionally, the at least one terminal device including the first terminal device can be one terminal device, i.e., the first terminal device, and the second wake-up indication can be used to indicate whether the first terminal device is woken up or to indicate that the first terminal device needs to be woken up.

[0115] Optionally, the at least one terminal device including the first terminal device can be at least 2 terminal devices, e.g., 2, 3, 20, 100, or a group of terminal devices in a cell served by the network device receiving the first wake-up indication, or all terminal devices in a cell served by the network device receiving the first wake-up indication, or all terminal devices served by the network device. The second wake-up indication can be used to indicate whether the plurality of terminal devices including the first terminal device are to be woken up or need to be woken up. Without loss of generality, the second wake-up indication can be configured to the plurality of terminal devices as a common wake-up indication.

[0116] There are various forms of the second wake-up indication.

[0117] As an example, the second wake-up indication can be contained in a second wake-up channel for a second group of terminal devices including the first terminal device. Wherein the second wake-up channel for the second group of terminal devices including the first terminal device corresponds to the second group of terminal devices, i.e., the second wake-up channel for the second group of terminal devices including the first terminal device is used to carry the wake-up indication of the second group of terminal devices.

[0118] Optionally, the number of the second group of terminal devices can be more than the number of the at least one terminal device including the first terminal device that the second wake-up indication can indicate, then the second wake-up channel carries the second wake-up indication and the wake-up indication of the other terminal devices in the second group of terminal devices except the at least one terminal device including the first terminal device.

[0119] Optionally, the number of the second group of terminal devices can be equal to the number of the at least one terminal device including the first terminal device that the second wake-up indication can indicate, then the second wake-up indication is equivalent to the wake-up indication for the second group of terminal devices, the second wake-up indication is used to indicate whether the second group of terminal devices are to be woken up or need to be woken up, and the second wake-up channel is dedicated to carrying the second wake-up indication.

[0120] Optionally, the second wake-up channel can be a physical downlink control channel (PDCCH).

[0121] For example, when the second group of terminal devices is indicated by the second wake-up indication, the second wake-up indication can be information of bits in a downlink control information (DCI) carried on a PDCCH. The DCI can carry a group ID of the second group of terminal devices, and the group ID of the second group of terminal devices can also be configured for each terminal device in the second group of terminal devices. After each terminal device in the second group of terminal devices successfully decodes the DCI using the group ID configured by itself, the information in the DCI can be shared, i.e., each terminal device in the second group of terminal devices can share the second wake-up indication, in other words, the second wake-up indication is used to indicate whether each terminal device in the second group of terminal devices is woken up or needs to be woken up.

[0122] Optionally, the configuration information of the second wake-up indication can include configuration information of a control resource set (control resource set) where the second wake-up channel PDCCH is located and configuration information of a search space of the second wake-up channel PDCCH. The time-frequency resource location of the second wake-up channel for the second group of terminal devices including the first terminal device can be defined by the above-mentioned configuration information of the control resource set and the configuration information of the search space. Optionally, the configuration information of the second wake-up indication can also include a group ID of the second group of terminal devices, etc.

[0123] As another example, the second wake-up indication can be a second wake-up signal. The second wake-up signal corresponds to the first terminal device or a plurality of terminal devices including the first terminal device, i.e., the second wake-up signal is used to indicate whether the first terminal device or the plurality of terminal devices including the first terminal device is woken up or needs to be woken up.

[0124] Optionally, the second wake-up signal can be a first demodulation reference signal (DMRS), or a first reference signal (RS) or other power saving indication signal.

[0125] The first demodulation reference signal is different from the second demodulation reference signal. For example, the second demodulation reference signal is used for channel estimation of a terminal device without a configured wake-up signal. When the first terminal device detects the first demodulation reference signal, it can be considered that the network device indicates that the first terminal device needs to be woken up. When the first terminal device only detects the second demodulation reference signal and does not detect the first demodulation reference signal, it can be considered that the network device indicates that the first terminal device does not need to be woken up, but the second demodulation reference signal can be used for channel estimation of other UE without a configured wake-up indication, thereby supporting PDCCH blind detection of these UE without a configured wake-up indication.

[0126] In some implementations, the first demodulation reference signal and the second demodulation reference signal can be scrambled using different scrambling codes, for example, the first demodulation reference signal can be scrambled using a first scrambling code, and the second demodulation reference signal can be scrambled using a second scrambling code, the first scrambling code and the second scrambling code being different, the first terminal device can determine whether the first terminal device receives the first demodulation reference signal or the second demodulation reference signal according to the scrambling codes, and then determine whether the first terminal device receives the second wake-up indication.

[0127] Optionally, the first demodulation reference signal is a wideband demodulation reference signal.

[0128] Optionally, the second wake-up signal can also be a first sequence in a demodulation reference signal, an existing sequence included in the demodulation reference signal being a second sequence, and the network device can send the demodulation reference signal using different sequences. For example, if the first terminal device detects a demodulation reference signal sent by the network device using a first sequence, the first terminal device can consider that the second wake-up indication is received, and the first terminal device can be woken up; if the first terminal device detects a demodulation reference signal sent by the network device using a second sequence, the first terminal device can consider that the second wake-up indication is not received, and the first terminal device can not be woken up.

[0129] Optionally, the configuration information of the second wake-up indication can include transmission occasion information of the second wake-up indication, a first scrambling code of the second wake-up indication, or a first sequence of the second wake-up indication, etc. The transmission occasion information of the second wake-up indication can include an absolute transmission occasion of the second wake-up indication, a time interval or a relative transmission occasion of the second wake-up indication relative to the first wake-up indication, or a relative transmission occasion of the second wake-up indication relative to a start point of a duration of a DRX cycle, etc., which are not limited in the embodiments of the present application. The first terminal device can determine a time domain position at which the network device sends the second wake-up indication according to the transmission occasion information of the second wake-up indication.

[0130] Using the demodulation reference signal to send the second wake-up indication can multiplex the existing air interface resources of the second wake-up indication, reduce the resource overhead of the second wake-up indication, and at the same time, the demodulation reference signal occupies a larger bandwidth and has better detection performance, which can improve the detection accuracy.

[0131] Optionally, the number of the second group of terminal devices can be more than the number of the first group of terminal devices mentioned above. In other words, the first wake-up indication is contained in one DCI on the first wake-up channel for the first group of terminal devices, the DCI corresponding to the wake-up indication of the first group of terminal devices; the second wake-up indication is contained in one DCI on the second wake-up channel for the second group of terminal devices, the DCI corresponding to the wake-up indication of the second group of terminal devices, the number of terminal devices acted on by the DCI where the second wake-up indication is located is greater than the number of terminal devices acted on by the DCI where the first wake-up indication is located.

[0132] In some embodiments, the channel where the first wake-up indication is located and the channel where the second wake-up indication is located can both be a physical downlink control channel PDCCH. It should be understood that here the channel where the first wake-up indication is located is the first wake-up channel, and the channel where the second wake-up indication is located is the second wake-up channel, that is, the first wake-up channel and the second wake-up channel can both be PDCCH.

[0133] In some embodiments, the channel where the first wake-up indication is located is PDCCH, and the second wake-up indication is a demodulation reference signal. It should be understood that here the channel where the first wake-up indication is located is the first wake-up channel, that is, the first wake-up channel is PDCCH.

[0134] In some embodiments, the first wake-up indication and the second wake-up indication can also both be demodulation reference signals, but the first wake-up indication and the second wake-up indication are different demodulation reference signals.

[0135] In the implementation of the present application, the first wake-up indication is used to indicate whether the first terminal device is woken up, and the second wake-up indication is used to indicate whether at least one terminal device including the first terminal device is woken up, that is, the first wake-up indication and the second wake-up indication can both be used to indicate whether the first terminal device is woken up.

[0136] The first terminal device can be configured with a DRX cycle, and optionally, the first wake-up indication and the second wake-up indication used to indicate whether the first terminal device is woken up can be understood as the first wake-up indication and the second wake-up indication used to indicate whether the first terminal device needs to detect PDCCH for scheduling data in the discontinuous reception DRX cycle.

[0137] Specifically, the DRX cycle includes an active time and an inactive time, the first wake-up indication and the second wake-up indication can be used to indicate whether the first terminal device needs to detect the PDCCH for scheduling data in the DRX cycle, i.e., whether the first terminal device needs to enter the active time (e.g., whether the first terminal device needs to start the on-duration timer). The PDCCH for scheduling data carries the DCI for scheduling data. The first terminal device is woken up, i.e., needs to enter the active time to detect the PDCCH for scheduling data, and thus in another way, the first wake-up indication and the second wake-up indication can be used to indicate whether the first terminal device needs to be woken up to enter the active time in the DRX cycle. Alternatively, as another example, the first wake-up indication and the second wake-up indication can be used to indicate whether the first terminal device needs to detect the DCI for scheduling data in the active time in the DRX cycle.

[0138] More specifically, the active time in the DRX cycle includes the on-duration timer controlled active period and the possible inactive timer controlled active period, the first wake-up indication and the second wake-up indication can be used to indicate whether the first terminal device is woken up in the on-duration timer controlled active period in the DRX cycle, i.e., the first wake-up indication and the second wake-up indication are used to indicate whether the first terminal device needs to detect the PDCCH for scheduling data in the on-duration timer controlled active period in the DRX cycle; or the first wake-up indication and the second wake-up indication can be used to indicate whether the first terminal device needs to start the on-duration timer in the DRX cycle, i.e., the first wake-up indication and the second wake-up indication are used to indicate whether the first terminal device needs to detect the PDCCH for scheduling data in the DRX cycle.

[0139] There are multiple ways for the first wake-up indication to indicate whether the first terminal device needs to detect the PDCCH for scheduling data in the DRX cycle. That is, there are multiple ways for the first wake-up indication to indicate whether the first terminal device is woken up.

[0140] As one possible implementation, the first wake-up indication can indicate that the first terminal device needs to detect the PDCCH for scheduling data in the DRX cycle or indicate that the first terminal device does not need to detect the PDCCH for scheduling data in the DRX cycle. That is, the first wake-up indication carries information indicating whether the first terminal device is woken up or not. For example, a certain bit in the first wake-up channel where the first wake-up indication is located is set to 1 can indicate that the first terminal device needs to detect the PDCCH for scheduling data in the DRX cycle (i.e., the first terminal device needs to be woken up), and the bit is set to 0 to indicate that the first terminal device does not need to detect the PDCCH for scheduling data in the DRX cycle (i.e., the first terminal device does not need to be woken up).

[0141] As another possible implementation, the first wake-up indication can be sent or not sent to indicate whether the first terminal device needs to be woken up or not, or whether the first terminal device needs to detect the PDCCH for scheduling data in the DRX cycle. For example, the network device sending the first wake-up indication to the first terminal device can indicate that the first terminal device needs to be woken up, and when the first terminal device detects the first wake-up indication, it is equivalent to indicating that the first terminal device needs to detect the PDCCH for scheduling data in the DRX cycle; the network device not sending the first wake-up indication to the first terminal device can indicate that the first terminal device does not need to be woken up, and when the first terminal device does not detect the first wake-up indication, it is equivalent to receiving an indication from the network device that the first terminal device does not need to detect the PDCCH for scheduling data in the DRX cycle.

[0142] As another possible implementation, the first wake-up indication can be not sent to indicate that the first terminal device does not need to be woken up, and when the first wake-up indication is sent, the indication information sent can be used to indicate whether the first terminal device needs to be woken up in the DRX cycle. For example, the network device not sending the first wake-up indication to the first terminal device can indicate that the first terminal device does not need to be woken up, and when the first terminal device does not detect the first wake-up indication, it is equivalent to receiving an indication from the network device that the first terminal device does not need to detect the PDCCH for scheduling data in the DRX cycle; the network device sending the first wake-up indication to the first terminal device can indicate that the first terminal device needs to be woken up according to specific indication information, for example, a bit in the first wake-up channel where the first wake-up indication is located being set to 1 can indicate that the first terminal device needs to detect the PDCCH for scheduling data in the DRX cycle (i.e., the first terminal device needs to be woken up), and the bit being set to 0 can indicate that the first terminal device does not need to detect the PDCCH for scheduling data in the DRX cycle (i.e., the first terminal device does not need to be woken up).

[0143] The second wake-up indication is used to indicate whether the first terminal device needs to detect the PDCCH for scheduling in the DRX cycle in a similar manner to the first wake-up indication, and specific details can be referred to the foregoing description, which will not be described here.

[0144] In some embodiments, the first terminal device detecting the second wake-up indication can be used to indicate that the first terminal device needs to be woken up.

[0145] Optionally, the priority of the first wake-up indication is higher than the priority of the second wake-up indication. In other words, when the first terminal device detects the first wake-up indication and the second wake-up indication, the first terminal device can preferentially determine whether to be woken up according to the first wake-up indication. Correspondingly, the configuration information of the first wake-up indication and / or the configuration information of the second wake-up indication can include information indicating whether the corresponding wake-up indication is the first wake-up indication or the second wake-up indication; the configuration information of the first wake-up indication and / or the configuration information of the second wake-up indication can include priority information of the first wake-up indication and the second wake-up indication.

[0146] In step S420, the network device sends the first wake-up indication and / or the second wake-up indication to the first terminal device, and correspondingly, the first terminal device detects the first wake-up indication and the second wake-up indication according to the configuration information of the first wake-up indication and the configuration information of the second wake-up indication.

[0147] The network device sending the first wake-up indication and / or the second wake-up indication to the first terminal device can include the network device sending the second wake-up indication to the first terminal device, or the network device sending the first wake-up indication and the second wake-up indication to the first terminal device. Of course, the network device sending the first wake-up indication and / or the second wake-up indication to the first terminal device also includes the network device sending the first wake-up indication to the first terminal device.

[0148] The network device can selectively send the first wake-up indication and / or the second wake-up indication according to the situation, and correspondingly, the result of the first terminal device detecting the first wake-up indication and the second wake-up indication can have multiple scenarios.

[0149] It should be understood that the first wake-up indication and the second wake-up indication are used to indicate that the first terminal device is woken up, which can be understood as indicating that the first terminal device needs to detect the PDCCH for scheduling data. The first wake-up indication and the second wake-up indication are used to indicate that the first terminal device is woken up, specifically, indicating that the first terminal device is woken up and detects the PDCCH for scheduling data at the active time of the DRX cycle, more specifically, indicating that the first terminal device is woken up and detects the PDCCH for scheduling data within the effective time period controlled by the duration timer of the DRX cycle, or indicating whether the first terminal device needs to start the duration timer in the DRX cycle.

[0150] As a possible implementation manner, the network device can send only the first wake-up indication to the first terminal device.

[0151] For example, the information in the first wake-up indication can indicate whether the first terminal device is to be woken up or not. Illustratively, when the network device needs to wake up the first terminal device, the network device can send the first wake-up indication to the first terminal device to indicate that the first terminal device is to be woken up; when the network device does not need to wake up the first terminal device, the network device can send the first wake-up indication to the first terminal device to indicate that the first terminal device is not to be woken up. Accordingly, when the first terminal device detects the first wake-up indication, the first terminal device can determine whether to wake up or not according to the information in the first wake-up indication; if the first terminal device does not detect the first wake-up indication, the first terminal device can be woken up or not by default.

[0152] Optionally, the first wake-up indication can be contained in a first wake-up channel for the first terminal device, and the first wake-up indication can be bit information in DCI in the first wake-up channel, so that the first terminal device can determine whether to wake up or not according to the bit information.

[0153] Optionally, the second wake-up indication can be contained in a first wake-up channel for a first group of terminal devices including the first terminal device, and the first wake-up indication can be bit field information of DCI in the first wake-up channel, so that the first terminal device can determine whether to wake up or not according to the corresponding bit field information.

[0154] For another example, the network device can indicate whether the first terminal device is to be woken up or not by sending or not sending the first wake-up indication. Illustratively, when the network device needs to wake up the first terminal device, the network device can send the first wake-up indication to indicate that the first terminal device is to be woken up; when the network device does not need to wake up the first terminal device, the network device can not send the first wake-up indication to indicate that the first terminal device is not to be woken up. Accordingly, the first terminal device wakes up when the first terminal device detects the first wake-up indication, and the first terminal device does not wake up when the first terminal device does not detect the first wake-up indication.

[0155] The network device can send configuration information of the first wake-up indication and configuration information of the second wake-up indication for the first terminal device, but in the case that the network device does not need to wake up the first terminal device, the network device can only send the first wake-up indication to indicate that the first terminal device is not to be woken up or not send the first wake-up indication to indicate that the first terminal device is not to be woken up, without sending the second wake-up indication to the first terminal device.

[0156] The form of the first wake-up indication and the time-frequency location where the first wake-up indication is located can refer to the related description in step S410, which will not be described here again.

[0157] As another possible implementation, the network device can send the first wake-up indication and the second wake-up indication to the first terminal device. The network device can send the first wake-up indication first and then send the second wake-up indication, or the network device can send the second wake-up indication first and then send the first wake-up indication, or the network device can send the first wake-up indication and the second wake-up indication to the terminal device at the same time. The embodiments of the present application do not make specific limitations.

[0158] Optionally, the priority of the first wake-up indication is higher than the priority of the second wake-up indication.

[0159] That is, when the first terminal device detects the second wake-up indication but does not detect the first wake-up indication, the first terminal device can determine whether to wake up according to the second wake-up indication. For example, when the network device needs to wake up the first terminal device, the network device sends the first wake-up indication and the second wake-up indication to the first terminal device, the first wake-up indication is used to indicate that the first terminal device is woken up, and the second wake-up indication is used to indicate that at least one terminal device including the first terminal device is woken up, that is, the first wake-up indication and the second wake-up indication sent by the network device can both indicate that the first terminal device is woken up, and the first terminal device can determine to be woken up according to the detected second wake-up indication when only the second wake-up indication is detected. For another example, when the network device does not need to wake up the first terminal device, the network device sends the first wake-up indication and the second wake-up indication to the first terminal device, the first wake-up indication is used to indicate that the first terminal device is not woken up, and the second wake-up indication is used to indicate that at least one terminal device including the first terminal device is not woken up, that is, the first wake-up indication and the second wake-up indication sent by the network device can both indicate that the first terminal device is not woken up, and the first terminal device can determine not to be woken up according to the detected second wake-up indication when only the second wake-up indication is detected. In the above technical solution, when the network device sends two wake-up indications for indicating the first terminal device to wake up to the first terminal device, the first terminal device can detect the second wake-up indication and determine to wake up according to the second wake-up indication in the case of missing or misjudging the first wake-up indication. This can reduce or avoid the case that the network device needs the terminal device to wake up but the first terminal device does not wake up, thereby reducing or avoiding the problem of increasing data transmission delay that may occur.

[0160] When the first terminal device detects the first wake-up indication and the second wake-up indication, the first terminal device determines whether to be woken up according to the first wake-up indication. For example, when the network device needs to wake up the first terminal device, the network device sends the first terminal device the first wake-up indication and the second wake-up indication, where the first wake-up indication is used to indicate that the first terminal device is woken up, and the second wake-up indication is used to indicate that at least one terminal device including the first terminal device is woken up, that is, the first wake-up indication and the second wake-up indication sent by the network device both indicate that the first terminal device is woken up, and the first terminal device can determine to be woken up according to the detected first wake-up indication when detecting the first wake-up indication and the second wake-up indication. Alternatively, when the network device needs to wake up the first terminal device, the network device sends the first terminal device the first wake-up indication used to indicate that the first terminal device is woken up, and the first terminal device detects the second wake-up indication sent by the network device to other terminal devices in at least one terminal device including the first terminal device, where the second wake-up indication is used to indicate that at least one terminal device including the first terminal device is not woken up, which is equivalent to that the network device sends the first terminal device the second wake-up indication used to indicate that the first terminal device is not woken up, and then the first terminal device determines that the first terminal device is woken up according to the detected first wake-up indication. For another example, when the network device does not need to wake up the first terminal device, the network device sends the first terminal device the first wake-up indication and the second wake-up indication, where the first wake-up indication is used to indicate that the first terminal device is not woken up, and the second wake-up indication is used to indicate that at least one terminal device including the first terminal device is not woken up, that is, the first wake-up indication and the second wake-up indication sent by the network device both indicate that the first terminal device is not woken up, and the first terminal device can determine not to be woken up according to the detected first wake-up indication when detecting the first wake-up indication and the second wake-up indication. Alternatively, when the network device does not need to wake up the first terminal device, the network device sends the first terminal device the first wake-up indication used to indicate that the first terminal device is not woken up, and the first terminal device detects the second wake-up indication sent by the network device to other terminal devices in at least one terminal device including the first terminal device, where the second wake-up indication is used to indicate that at least one terminal device including the first terminal device is woken up, which is equivalent to that the network device sends the first terminal device the second wake-up indication used to indicate that the first terminal device is woken up, and then the first terminal device determines that the first terminal device is not woken up according to the detected first wake-up indication, and the second wake-up indication is used to wake up at least one other terminal device except the first terminal device.

[0161] It should be noted that in some embodiments, when the second wake-up indication is used to indicate that at least one terminal device including the first terminal device is woken up, the second wake-up indication is also detected by other terminal devices of the at least one terminal device including the first terminal device, and indicates that the other terminal devices are woken up.

[0162] The following describes an example in which the at least one terminal device including the first terminal device further includes a second terminal device. The network device sends, to the second terminal device, configuration information of a third wake-up indication and configuration information of the second wake-up indication, the third wake-up indication being a wake-up indication for the second terminal device, i.e., the third wake-up indication is used to indicate whether the second terminal device is woken up. In addition, the network device sends, to the second terminal device, the third wake-up indication and / or the second wake-up indication, and accordingly, the second terminal device detects the third wake-up indication and the second wake-up indication according to the configuration information of the third wake-up indication and the configuration information of the second wake-up indication. The above process is similar to the description above for the first terminal device, and will not be described again.

[0163] By way of example but not limitation, when the network device does not need to wake up the first terminal device but needs to wake up the second terminal device, the network device can send, to the first terminal device, a first wake-up indication and a second wake-up indication, the first wake-up indication being used to indicate that the first terminal device is not woken up, and the second wake-up indication being used to indicate that at least one terminal device including the first terminal device and the second terminal device is woken up. Then, when the first terminal device detects the first wake-up indication and the second wake-up indication, the first terminal device determines not to be woken up according to the first wake-up indication.

[0164] Optionally, for the second terminal device, the network device can send, to the second terminal device, only the second wake-up indication, which is used to indicate that the second terminal device is woken up, and then the second terminal device determines to be woken up according to the second wake-up indication when the second terminal device detects the second wake-up indication.

[0165] Optionally, for the second terminal device, the network device can send, to the second terminal device, the second wake-up indication and a third wake-up indication, wherein the second wake-up indication is used to indicate that at least one terminal device is woken up, and the third wake-up indication is used to indicate that the second terminal device is woken up. Then, if the second terminal device detects the third wake-up indication or detects the second wake-up indication, the second terminal device can determine to be woken up according to the third wake-up indication, and if the second terminal device detects the second wake-up indication, the second terminal device can determine to be woken up according to the second wake-up indication.

[0166] As an example but not limitation, when the network device needs to wake up the first terminal device but does not need to wake up the second terminal device, the network device sends the first terminal device a first wake-up indication and a second wake-up indication, the first wake-up indication is used to indicate that the first terminal device is to be woken up, and the second wake-up indication is used to indicate that at least one terminal device is to be woken up. For the second terminal device, the second terminal device can detect the wake-up indication sent by the network device to the second terminal device, and also detect the second wake-up indication sent by the network device to the first terminal device. For the second terminal device, the second terminal device can also preferentially determine whether to be woken up according to the detected wake-up indication for the second terminal device, rather than according to the detected second wake-up indication. For example, the second terminal device detects a third wake-up indication sent by the network device to the second terminal device, the third wake-up indication is used to indicate that the second terminal device is not to be woken up, and the second terminal device detects the second wake-up indication sent by the network device, the second wake-up indication is used to indicate that at least one terminal device including the first terminal device and the second terminal device is to be woken up, then the second terminal device can determine not to be woken up according to the third wake-up indication for the second terminal device.

[0167] For the network device, when the second wake-up indication sent by the network device to the first terminal device is used to indicate that multiple terminal devices including the first terminal device are to be woken up, in some cases, the network device does not need to wake up all the terminal devices, then the network device can send, to the terminal devices that need to be woken up, the second wake-up indication, and also send, to the terminal devices that do not need to be woken up, a wake-up indication corresponding to each of the terminal devices that do not need to be woken up, wherein the wake-up indication corresponding to each of the terminal devices that do not need to be woken up is used to indicate that the corresponding terminal device is not to be woken up. For example, the second wake-up indication is used to indicate that N terminal devices including the first terminal device are to be woken up, and M terminal devices of the N terminal devices do not need to be woken up, then the network device can send, to the N terminal devices, the second wake-up indication, and also send, to the M terminal devices, M wake-up indications for the M terminal devices, the M wake-up indications are respectively used to indicate that the corresponding terminal device does not need to be woken up. Accordingly, each of the M terminal devices can detect the second wake-up indication and also detect the wake-up indication for the terminal device, then each of the M terminal devices determines not to be woken up according to the wake-up indication for the terminal device. In other words, for each of the M terminal devices, the priority of the wake-up indication for the terminal device is higher than the priority of the second wake-up indication. The terminal devices that need to be woken up can determine to be woken up according to the second wake-up indication when detecting the second wake-up indication.

[0168] The above technical solution can solve the situation that the network device has no enough time-frequency resources to send the wake-up indication for each terminal device by sending the second wake-up indication acting on at least one terminal device and the corresponding wake-up indication for part of the terminal devices. That is, when the network device has no enough time-frequency resources to send the first wake-up indication for each terminal device, the network device can send the second wake-up indication for all terminal devices to indicate that all terminal devices are woken up, and send the corresponding first wake-up indication for the terminal device that does not need to be woken up to indicate that the terminal device does not need to be woken up, which can solve the network device blocking problem, and also can make the terminal device that needs to be woken up be woken up, and the terminal device that does not need to be woken up not be woken up.

[0169] In addition, by configuring the priority for the wake-up indication detected by the terminal device, the terminal device can determine whether to be woken up according to the wake-up indication with higher priority, which can avoid the situation that the terminal device does not need to be woken up but is woken up.

[0170] When the first terminal device detects the first wake-up indication but does not detect the second wake-up indication, the first terminal device determines whether to be woken up according to the first wake-up indication.

[0171] When the first terminal device does not detect the first wake-up indication and does not detect the second wake-up indication, the first terminal device can be defaulted to not need to be woken up.

[0172] For another example, the network device can only send the second wake-up indication to the first terminal device. Since the second wake-up indication is a wake-up indication indicating at least one terminal device including the first terminal device, it is equivalent that at least one terminal device including the first terminal device can share the second wake-up indication. When the network device is blocked and the time-frequency resource for sending the first wake-up indication to multiple terminal devices is insufficient, the network device can only send the second wake-up indication to wake up all terminal devices configured with the second wake-up indication. For example, the network device can configure all terminal devices served by the network device with the second wake-up indication, or configure all terminal devices in a certain cell under the network device with the second wake-up indication. In this way, the network device can wake up all terminal devices served by the network device or all terminal devices in a certain cell, thereby solving the problem of network blocking that causes the network device to be unable to send the first wake-up indication corresponding to multiple terminal devices, thereby avoiding the situation that the network device needs to wake up the terminal device but the terminal device does not wake up due to not receiving the first wake-up indication, thereby reducing or avoiding the problem of increased data transmission delay that may occur. In the embodiment of the present application, by configuring the second wake-up indication, the terminal device that does not detect the first wake-up indication can determine whether to wake up according to the second wake-up indication, thereby reducing the impact of poor channel quality on the terminal device, avoiding the terminal device from being unable to be woken up and receive the scheduling DCI due to the above reasons, and avoiding the possibility of partial data transmission delay caused by the terminal device.

[0173] The embodiment of the present application also provides another method for waking up a terminal device, which can be executed by a network device and a first terminal device. The network device can be, for example, the network device 110 in Figure 1 , and the first terminal device can be, for example, the terminal device 120 in Figure 1 , still taking Figure 4 as an example.

[0174] In step S410, the operations of the network device and the first terminal device can be replaced as follows. The network device sends configuration information of a first wake-up indication to the first terminal device, and correspondingly, the first terminal device receives the configuration information of the first wake-up indication from the network device, the first wake-up indication being used to indicate whether the first terminal device is woken up.

[0175] In step S420, the operation of the first terminal device can be replaced as follows. The first terminal device detects the first wake-up indication according to the configuration information of the first wake-up indication.

[0176] Optionally, when the first terminal device detects the first wake-up indication, the first terminal device can determine whether the terminal device is woken up according to the first wake-up indication.

[0177] Optionally, when the first terminal device does not detect the first wake-up indication, the first terminal device determines to be woken up.

[0178] That is, the first terminal device is woken up by default when the first wake-up indication is not detected, which reduces or avoids the case that the first terminal device needs to be woken up but is not woken up by default due to the first wake-up indication not being detected.

[0179] For example, the first wake-up indication is included in a first wake-up channel PDCCH for a plurality of terminal devices including the first terminal device, and a plurality of bit field information of a certain DCI in the first wake-up channel corresponds to the wake-up indication of the plurality of terminal devices, which will obtain its own wake-up indication in the corresponding bit field after detecting the DCI in the first wake-up channel, and one bit field information is the first wake-up indication of the first terminal device. In some cases, if the first terminal device does not detect the DCI, it cannot obtain its own first wake-up indication, at this time, the first terminal device defaults to being woken up, thereby avoiding the problem of data transmission delay due to the first terminal device missing the scheduling opportunity of the DRX cycle.

[0180] The configuration information of the first wake-up indication can refer to the above description. In addition to the information described above, in the embodiments of the present application, the configuration information of the first wake-up indication further includes information for indicating that the terminal device determines to be woken up when the first wake-up indication is not detected.

[0181] The form of the first wake-up indication, the first wake-up indication position information, the configuration information of the first wake-up indication, and the like can refer to the above description, and will not be described here for brevity.

[0182] Some specific but non-limiting examples of the embodiments of the present application are described in more detail below. Figures 5 to 7

[0183] For the convenience of understanding, the following embodiments take the network device sending the first wake-up indication and the second wake-up indication, and the second wake-up indication indicating the terminal device to wake up as an example.

[0184] As an example, the first wake-up indication is included in a first wake-up channel for the first terminal device. For example, the first wake-up channel is a PDCCH, the first wake-up indication can be the bit information of the DCI carried in the first wake-up channel, and the DCI where the first wake-up indication is located is the DCI dedicated to the first terminal device.

[0185] ​The second wakeup indication is included in a second wakeup channel for a group of terminal devices including the first terminal device. For example, the second wakeup channel is a PDCCH, and the second wakeup indication is a wakeup indication for the group of terminal devices, that is, the UE range of the second wakeup indication is the group of terminal devices, and the group of terminal devices share the second wakeup indication. The second wakeup indication can be located in a DCI on the second wakeup channel PDCCH, and the second wakeup indication in the DCI is used to indicate that the group of terminal devices are woken up.

[0186] The first wakeup channel PDCCH and the second wakeup channel PDCCH can be the same or different. For ease of understanding, in the embodiments of the present application, the DCI used to carry the first wakeup indication in the first wakeup channel PDCCH where the first wakeup indication is located is referred to as a UE-specific wakeup signal (UE-specific WUS), and the DCI used to carry the second wakeup indication in the second wakeup channel PDCCH where the second wakeup indication is located is referred to as a common wakeup signal (common WUS). That is, the UE-specific wakeup signal is a kind of DCI, which is used to indicate whether the first terminal device is woken up. The common wakeup signal is also a kind of DCI, which is used to indicate that a group of terminal devices including the first terminal device are woken up. Alternatively, the DCI of the dedicated wakeup signal and the DCI of the common wakeup signal use the same DCI format and are distinguished by using different RNTIs or scrambling codes.

[0187] Specifically, in the DRX mode, in addition to configuring the UE-specific wakeup signal for the first terminal device, the network device also configures the common wakeup signal for the first terminal device. The UE-specific wakeup signal is a wakeup signal for the first terminal device, which can only indicate whether the first terminal device is woken up, and the common wakeup signal is a wakeup signal for a group of terminal devices including the first terminal device, which can wake up the group of terminal devices.

[0188] Optionally, the common wakeup signal can be a group-based wakeup signal, that is, the common wakeup signal is a wakeup signal for a group of terminal devices, and in the case that the group of terminal devices only detects the common wakeup signal, the common wakeup signal can wake up the group of terminal devices.

[0189] Optionally, the common wakeup signal can be an all-terminal-device-based wakeup signal, that is, the common wakeup signal is a wakeup signal for all terminal devices, and in the case that all terminal devices only detect the common wakeup signal, the common wakeup signal can wake up all terminal devices. It should be understood that all terminal devices can be all terminal devices served by the network device.

[0190] The network device sends configuration information of the first wake-up indication and configuration information of the second wake-up indication to the first terminal device, i.e., sends configuration information of the UE-specific wake-up signal and configuration information of the common wake-up signal to the first terminal device.

[0191] The configuration information of the UE-specific wake-up signal at least includes the following: configuration information of a control resource set (control resource set) in which the UE-specific wake-up signal is sent and configuration information of a search space in which the UE-specific wake-up signal is sent. The specific time-frequency resource position of the UE-specific wake-up signal can be defined through the above-mentioned control resource set configuration information and search space configuration information. Optionally, the configuration information of the UE-specific wake-up signal further includes RNTI of the first terminal device for sending the dedicated wake-up channel.

[0192] The configuration information of the common wake-up signal at least includes the following: configuration information of a control resource set (control resource set) in which the common wake-up signal is sent and configuration information of a search space in which the common wake-up signal is sent. The specific time-frequency resource position of the common wake-up signal can be defined through the above-mentioned control resource set configuration information and search space configuration information. Optionally, the configuration information of the common wake-up signal further includes a common C-RNTI corresponding to the DCI for sending the common wake-up indication.

[0193] Reference Figures 5 to 7 The network device sends the first wake-up indication and / or the second wake-up indication, i.e., the network device sends the UE-specific wake-up signal and / or the common wake-up signal to the first terminal device in the embodiments of the present application.

[0194] It should be noted that, Figures 5 to 7 The time relationship between the sending time of the first wake-up indication and the sending time of the second wake-up indication in the above-mentioned Figures 5 to 7 The examples of the UE-specific wake-up signal and the common wake-up signal in the above-mentioned are only exemplary, and the embodiments of the present application include but are not limited to different sending time of the first wake-up indication and the second wake-up indication. In the embodiments of the present application, the first wake-up indication and the second wake-up indication can also be sent at the same time, and correspondingly, the terminal device can also receive the first wake-up indication and the second wake-up indication at the same time.

[0195] It should also be noted that the sending time of the dedicated wake-up signal and the common wake-up signal can be the same as the sending time of the respective configuration information, or can be different, i.e., the network device can send the wake-up signal and the configuration information of the wake-up signal at the same time, or can send the wake-up signal and the configuration information of the wake-up signal separately.

[0196] The UE-specific wake-up signal and the common wake-up signal sent by the network device are used to indicate whether the first terminal device needs to be woken up in the duration timer controlled active period (i.e., the duration) in the corresponding DRX cycle and detect the PDCCH for scheduling data in the start time of the inactive time or the duration time of the DRX cycle, or to indicate whether the first terminal needs to start the duration timer.

[0197] When the network device only sends the UE-specific wake-up signal, or the network device sends the UE-specific wake-up signal and the common wake-up signal but the first terminal device does not detect the common wake-up signal, and the first terminal device only detects the UE-specific wake-up signal, the first terminal device determines whether to be woken up according to the UE-specific wake-up signal, and if it is determined to be woken up, it will also detect the PDCCH for scheduling data during the duration, or determine to start the duration timer. If the first terminal device determines not to be woken up, the first terminal device continues to remain in the sleep state or the inactive time.

[0198] For example, when the network device sends the UE-specific wake-up signal and the common wake-up signal, the first terminal device determines whether to be woken up according to the UE-specific wake-up signal, and if it is determined to be woken up, it will also detect the PDCCH for scheduling data during the duration or determine to start the duration timer. As shown in Figure 5 , after the first terminal device determines to be woken up, it will detect the PDCCH for scheduling data during the duration, and if it detects that the DCI for scheduling new data transmission is detected after completing the blind detection of the PDCCH, it will start the inactive timer. If the UE-specific wake-up signal indicates that the first terminal device does not need to be woken up, the first terminal device can not be woken up even if the common wake-up signal indicates that the first terminal device needs to be woken up.

[0199] When the network device only sends the common wake-up signal, or the network device sends the UE-specific wake-up signal and the common wake-up signal but the first terminal device does not detect the UE-specific wake-up signal, and the first terminal device only detects the common wake-up signal, the first terminal device determines to be woken up according to the common wake-up signal, and will detect the PDCCH for scheduling data during the duration, or determine to start the duration timer. As shown in Figure 6 , the wake-up and detection process of the first terminal device is the same as that described in Figure 5 , and will not be described again for brevity.

[0200] When the network device sends the UE-specific wake-up signal and / or the common wake-up signal, or neither the UE-specific wake-up signal nor the common wake-up signal is sent, and the first terminal device does not detect the UE-specific wake-up signal nor the common wake-up signal, the first terminal device can be defaulted to not be woken up, as shown in Figure 7As shown, the first terminal device will not be woken up during the duration.

[0201] The embodiment of the present application sets the common wakeup signal, so that the UE which does not detect the UE-specific wakeup signal can determine whether to wake up during the duration according to the common wakeup signal, reduces the influence of channel quality deterioration or blocking on the UE, and avoids the possibility of data transmission delay.

[0202] As another example, the first wakeup indication is contained in a first wakeup channel for a first group of terminal devices including the first terminal device. For example, the first wakeup channel is a PDCCH, and the first wakeup indication can be one bit field information of a DCI carried in the first wakeup channel PDCCH. The DCI can include multiple bit fields, and the information of each bit field is a specific wakeup indication of a corresponding terminal device in the first group of terminal devices. The DCI in which the first wakeup indication is located is the DCI corresponding to the first group of terminal devices.

[0203] The second wakeup indication is contained in a second wakeup channel for a second group of terminal devices including the first terminal device. For example, the second wakeup channel is a PDCCH, and the second wakeup indication is a wakeup indication for the second group of terminal devices, that is, the UE range of the second wakeup indication is the second group of terminal devices, and the second group of terminal devices share the second wakeup indication. The second wakeup indication can be located in a DCI on the second wakeup channel PDCCH, and the second wakeup indication in the DCI is used to indicate that the second group of terminal devices are woken up.

[0204] The first wakeup channel PDCCH and the second wakeup channel PDCCH can be the same or different. For ease of understanding, in the embodiment of the present application, the DCI in the first wakeup channel PDCCH for carrying the wakeup indication corresponding to each terminal device in the first group of terminal devices is called a group wakeup signal (group WUS), and the DCI in the second wakeup channel PDCCH for carrying the second wakeup indication is called a common wakeup signal (common WUS). That is, the group wakeup signal is a DCI, and the DCI includes a specific wakeup indication corresponding to each terminal device in the first group of terminal devices, and the specific wakeup indication corresponding to each terminal device is used to indicate whether the corresponding terminal device is woken up. The common wakeup signal is also a DCI, and the common wakeup signal is used to indicate that the second group of terminal devices including the first terminal device are woken up.

[0205] Specifically, in the DRX mode, the network device configures, for the first terminal device, a group wake-up signal and a common wake-up signal in addition to the first wake-up indication. The group wake-up signal is a wake-up signal for a first group of terminal devices, and can respectively indicate whether each terminal device in the first group of terminal devices wakes up. The common wake-up signal is a wake-up signal for a second group of terminal devices including the first terminal device, and can wake up the second group of terminal devices.

[0206] Optionally, the number of the second group of terminal devices can be greater than the number of the first group of terminal devices.

[0207] The network device sends, to the first terminal device, configuration information of the first wake-up indication and configuration information of the second wake-up indication, that is, configuration information of the group wake-up signal and configuration information of the common wake-up signal.

[0208] The configuration information of the group wake-up signal at least includes the following: configuration information of a control resource set (control resource set) in which the group wake-up signal is sent and configuration information of a search space in which the group wake-up signal is sent. The specific time-frequency resource position of the group wake-up signal can be defined through the above-mentioned control resource set configuration information and search space configuration information. Optionally, the configuration information of the group wake-up signal further includes an RNTI corresponding to the first group of terminal devices.

[0209] The configuration information of the common wake-up signal at least includes the following: configuration information of a control resource set (control resource set) in which the common wake-up signal is sent and configuration information of a search space in which the common wake-up signal is sent. The specific time-frequency resource position of the common wake-up signal can be defined through the above-mentioned control resource set configuration information and search space configuration information. Optionally, the configuration information of the common wake-up signal further includes an RNTI corresponding to the second group of terminal devices.

[0210] Optionally, the sending time of the group wake-up signal and the common wake-up signal can be the same or different, that is, the network device can simultaneously send the group wake-up signal and the common wake-up signal, or separately send the group wake-up signal and the common wake-up signal, and the embodiments of the present application do not make specific limitations.

[0211] Optionally, the sending time of the group wake-up signal (or the common wake-up signal) and the configuration information of the group wake-up signal (or the configuration information of the common wake-up signal) can be the same or different, that is, the network device can simultaneously send the group wake-up signal (or the common wake-up signal) and the configuration information of the group wake-up signal (or the configuration information of the common wake-up signal), or separately send the group wake-up signal (or the common wake-up signal) and the configuration information of the group wake-up signal (or the configuration information of the common wake-up signal), and the embodiments of the present application do not make specific limitations.

[0212] Still referring to Figures 5 to 7 , the network device sends the first wake-up indication and / or the second wake-up indication, that is, the network device sends the group wake-up signal and / or the common wake-up signal to the first terminal device in the embodiments of the present application. The detection result of the first terminal device and its corresponding behavior are similar to the network device sending the UE-specific wake-up signal and / or the common wake-up signal to the first terminal device, and specific reference can be made to the related description above, which will not be described here.

[0213] The embodiments of the present application set the common wake-up signal, so that the UE that does not detect the group wake-up signal can determine whether it needs to wake up during the duration according to the common wake-up signal, reducing the impact of channel quality deterioration or blocking on the UE, and avoiding the possibility of data transmission delay.

[0214] As a further example, the first wake-up indication can be contained in the first wake-up channel (for example, PDCCH), and the second wake-up indication can be the second wake-up signal. For example, the second wake-up signal is a demodulation reference signal, that is, the second wake-up indication is a demodulation reference signal (for example, wideband DMRS).

[0215] Since the demodulation reference signal is used for channel estimation of DCI, the frequency domain bandwidth it occupies is much larger than that of general DCI, and the resource blocks RB are continuous in the frequency domain. Using the demodulation reference signal, the UE can perform smoothing filtering, and the detection performance is better. The demodulation reference signal is more flexible for sending the second wake-up indication and is not prone to blocking.

[0216] To distinguish the demodulation reference signal for waking up the first terminal device from the demodulation reference signal without the wake-up function, the demodulation reference signal for waking up the first terminal device is recorded as a first demodulation reference signal in the embodiments of the present application, and the demodulation reference signal without the wake-up function is recorded as a second demodulation reference signal. The first demodulation reference signal and the second demodulation reference signal can be scrambled using different scrambling codes, for example, the first demodulation reference signal can be scrambled using a first scrambling code, and the second demodulation reference signal can be scrambled using a second scrambling code, and the first terminal device can determine whether the detected demodulation reference signal is the first demodulation reference signal for waking up the first terminal device or the second demodulation reference signal according to the different scrambling codes. Or the first terminal device can determine whether the network device has sent the second wake-up indication according to the presence or absence of the demodulation reference signal, for example, by receiving energy. For example, when the second demodulation reference signal is used for channel estimation of a terminal without configuring a wake-up signal, when the first terminal device detects the first demodulation reference signal, it can be considered that the network device indicates that the first terminal device needs to be woken up, and when the first terminal device only detects the second demodulation reference signal without detecting the first demodulation reference signal, it can be considered that the network device indicates that the first terminal device does not need to be woken up, but the second demodulation reference signal can be used for channel estimation of other UEs without configuring a wake-up indication, thereby supporting PDCCH blind detection of these UEs without configuring a wake-up indication.

[0217] In some embodiments, the first demodulation reference signal and the second demodulation reference signal can be transmitted using different sequences. For example, the first demodulation reference signal can be transmitted using a first sequence, and the second demodulation reference signal can be transmitted using a second sequence, and the first terminal device can determine whether the detected demodulation reference signal is the first demodulation reference signal for waking up the first terminal device or the second demodulation reference signal without the wake-up function for channel estimation according to the detection of different sequences.

[0218] The configuration information of the second wake-up indication can include: the transmission occasion information of the second wake-up indication, for example, the absolute transmission occasion of the second wake-up indication in the time domain or the relative transmission occasion relative to the first wake-up indication; and can also include the second scrambling code or the second sequence of the second wake-up indication, etc. It should be noted that the second wake-up indication and the first wake-up indication can be transmitted at the same time in the embodiments of the present application, and therefore the transmission occasion information of the second wake-up indication can not be included in the configuration information of the second wake-up indication.

[0219] This application embodiment sets a common wake-up signal, enabling UEs that have not detected a group wake-up signal to determine whether they need to wake up within a certain duration based on the common wake-up signal. This reduces the impact of channel quality degradation or congestion on the UE and avoids the possibility of some data transmission delays. Simultaneously, because the common wake-up signal is indicated by wideband DMRS, it can reuse existing air interface resources, reducing the resource overhead of the common wake-up signal. Furthermore, wideband DMRS has better detection performance, improving detection accuracy.

[0220] The above text combined Figures 1 to 7 The method embodiments of this application are described in detail below, in conjunction with... Figures 8 to 11 This application provides a detailed description of the apparatus embodiments. It should be understood that the descriptions of the method embodiments correspond to the descriptions of the apparatus embodiments; therefore, any parts not described in detail can be found in the preceding method embodiments.

[0221] Figure 8 This is a schematic structural diagram of the terminal device provided in the embodiments of this application. Figure 8 The terminal device 800 in the middle can be Figure 1 A specific example of terminal device 120 in the process. Figure 8 The device shown can be used to perform Figure 4 The method, and can be specifically implemented. Figures 5 to 7 The embodiments shown are not described again to avoid redundancy.

[0222] Figure 8 The terminal device 800 shown includes a transceiver unit 810 and a processing unit 820.

[0223] The transceiver unit 810 is configured to receive configuration information of a first wake-up indication and configuration information of a second wake-up indication from the network device. The first wake-up indication is used to indicate whether the terminal device is woken up, and the second wake-up indication is used to indicate whether at least one terminal device, including the terminal device, is woken up.

[0224] The processing unit 820 is configured to detect the first wake-up indication and the second wake-up indication based on the configuration information of the first wake-up indication and the configuration information of the second wake-up indication.

[0225] Optionally, when the processing unit 820 detects the second wake-up indication but does not detect the first wake-up indication, the processing unit 820 is further configured to determine whether the terminal device is woken up based on the second wake-up indication.

[0226] Optionally, when the processing unit 820 detects the first wake-up indication and the second wake-up indication, the processing unit 820 is further configured to determine whether the terminal device is woken up based on the first wake-up indication.

[0227] Optionally, when the processing unit 820 does not detect the first wake-up indication and the second wake-up indication, the processing unit 820 is further configured to determine that the terminal device is not woken up.

[0228] Optionally, the first wake-up indication is included in a first wake-up channel for the terminal device, or included in a first wake-up channel for a first group of terminal devices including the terminal device.

[0229] Optionally, the second wake-up indication is a second wake-up signal, or the second wake-up indication is included in a second wake-up channel for a second group of terminal devices including the terminal device.

[0230] Optionally, the first wake-up indication and the second wake-up indication are both in a physical downlink control channel (PDCCH).

[0231] Optionally, the first wake-up indication is in a PDCCH, and the second wake-up indication is a first demodulation reference signal.

[0232] Optionally, the configuration information of the second wake-up indication includes transmission occasion information of the second wake-up indication.

[0233] Optionally, the configuration information of the second wake-up indication includes a first scrambling code of the second wake-up indication, the first demodulation reference signal is scrambled using the first scrambling code, and a second demodulation reference signal is scrambled using a second scrambling code, the first scrambling code being different from the second scrambling code.

[0234] Optionally, the first wake-up indication and the second wake-up indication are used to indicate whether the terminal device needs to detect a PDCCH for scheduling data in a discontinuous reception (DRX) cycle.

[0235] Figure 9 FIG. 1 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application. Figure 9 The communication apparatus 900 in FIG. 1 can be Figure 1 The terminal device 120 in FIG. 1 is one specific example. Figure 9 The communication apparatus shown in FIG. 1 can be used to execute Figures 4 to 7 The method in FIG. 1, and the description is not repeated to avoid redundancy.

[0236] The communication apparatus can be a terminal device, a device in a terminal device, or a device that can be used in matching with a terminal device. The communication apparatus can be a chip system. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices. The communication apparatus 900 includes at least one processor 920 configured to implement the method provided by the embodiments of the present application. For example, the processor 920 can be configured to detect the first wake-up indication and the second wake-up indication according to the configuration information of the received first wake-up indication and the configuration information of the second wake-up indication, and the like. For details, refer to the detailed description in the method examples, which will not be repeated here. Optionally, the processor 920 has the same function as the processing unit 820.

[0237] The communication apparatus 900 can further include at least one memory 910 configured to store program instructions and / or data. The memory 910 and the processor 920 are coupled. The coupling between the devices, units or modules in the embodiments of the present application is indirect coupling or communication connection between the devices, units or modules, which can be electrical, mechanical or other forms, and is used for information interaction between the devices, units or modules. The processor 910 can operate in cooperation with the memory 920. The processor 910 can execute the program instructions stored in the memory 920. At least one of the at least one memory can be included in the processor.

[0238] The communication apparatus 900 can further include a communication interface 930 configured to communicate with other devices through a transmission medium, so that the devices in the communication apparatus 900 can communicate with other devices. For example, the communication interface can be a transceiver, a circuit, a bus, a module, a pin or other types of communication interfaces. For example, the communication apparatus 900 is a terminal device, and the other device is a network device. The processor 920 transmits and receives data through the communication interface 930, and is configured to implement the method performed by the terminal device in the corresponding embodiments. Figures 4 to 7 The method performed by the terminal device in the corresponding embodiments.

[0239] In the embodiments of the present application, the specific connection medium between the communication interface 930, the processor 920 and the memory 910 is not limited. In the embodiments of the present application, the memory 910, the processor 920 and the communication interface 930 are connected through a bus 940, and the bus is connected through a bus 940. Figure 9 Figure 9 ​The connection modes between other components are indicated by thick lines, which are only illustrative and are not limited. The bus can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For convenience of representation, Figure 9 Only one thick line is used in the figure, but it does not mean that there is only one bus or only one type of bus.

[0240] Figure 10 The network device provided by the embodiment of the present application is a schematic structural diagram. Figure 10 The network device 1000 in the figure can be Figure 1 The network device 110 in the figure is a specific example of the network device. Figure 10 The device shown in the figure can be used to execute Figure 4 The method shown in the figure, and can specifically implement Figures 5 to 7 The embodiment shown in the figure will not be described repeatedly to avoid redundancy.

[0241] Figure 10 The network device 1000 shown in the figure includes a transceiver unit 1010.

[0242] The transceiver unit 1010 is configured to send configuration information of a first wake-up indication and configuration information of a second wake-up indication to a first terminal device, the first wake-up indication being used to indicate whether the first terminal device is woken up, and the second wake-up indication being used to indicate whether at least one terminal device including the first terminal device is woken up.

[0243] The transceiver unit 1010 is further configured to send the second wake-up indication to the first terminal device, or the transceiver unit is further configured to send the first wake-up indication and the second wake-up indication to the first terminal device.

[0244] Optionally, when the network device needs to wake up the first terminal device, the transceiver unit 1010 is specifically configured to send the second wake-up indication to the first terminal device, the second wake-up indication being used to indicate that the at least one terminal device is woken up.

[0245] Optionally, when the network device needs to wake up the first terminal device, the transceiver unit 1010 is specifically configured to send the first wake-up indication and the second wake-up indication to the first terminal device, the first wake-up indication being used to indicate that the first terminal device is woken up, and the second wake-up indication being used to indicate that the at least one terminal device is woken up or that the at least one terminal device is not woken up.

[0246] Optionally, the at least one terminal device further includes a second terminal device, when the network device does not need to wake up the first terminal device but needs to wake up the second terminal device, the transceiver 1010 is specifically configured to send the first wake-up indication and the second wake-up indication to the first terminal device, the first wake-up indication is used to indicate that the first terminal device is not woken up, and the second wake-up indication is used to indicate that the at least one terminal device is woken up.

[0247] Optionally, when the network device does not need to wake up the first terminal device but needs to wake up the second terminal device, the transceiver 1010 is further configured to send the second wake-up indication to the second terminal device.

[0248] Optionally, when the network device does not need to wake up the first terminal device but needs to wake up the second terminal device, the transceiver 1010 is further configured to send the third wake-up indication and the second wake-up indication to the second terminal device, the third wake-up indication is used to indicate that the second terminal device is woken up.

[0249] Optionally, the first wake-up indication is included in a first wake-up channel for the first terminal device, or included in a first wake-up channel for a first group of terminal devices including the first terminal device.

[0250] Optionally, the second wake-up indication is a second wake-up signal, or the second wake-up indication is included in a second wake-up channel for a second group of terminal devices including the first terminal device.

[0251] Optionally, the channels where the first wake-up indication and the second wake-up indication are located are both physical downlink control channels PDCCH.

[0252] Optionally, the channel where the first wake-up indication is located is a PDCCH, and the second wake-up indication is a first demodulation reference signal.

[0253] Optionally, the configuration information of the second wake-up indication includes transmission occasion information of the second wake-up indication.

[0254] Optionally, the configuration information of the second wake-up indication includes a first scrambling code of the second wake-up indication, the first demodulation reference signal is scrambled using the first scrambling code, a second demodulation reference signal is scrambled using a second scrambling code, and the first scrambling code is different from the second scrambling code.

[0255] Optionally, the first wake-up indication and the second wake-up indication are used to indicate whether the first terminal device needs to detect a PDCCH for scheduling data in a discontinuous reception DRX cycle.

[0256] Figure 11 is a schematic structural diagram of a communication apparatus provided in an embodiment of the present application. Figure 11 The communication apparatus 1100 in the above description can be Figure 1 a specific example of the network device 110 in the above description. Figure 11 The communication apparatus shown in the above description can be used to execute Figures 4 to 7 the method in the above description, and the description will not be repeated.

[0257] The communication apparatus can be a network device, a device in a network device, or a device capable of being used in matching with a network device. The communication apparatus can be a chip system. In an embodiment of the present application, the chip system can be composed of a chip or can include a chip and other discrete devices. The communication apparatus 1100 includes at least one processor 1120, which is used to implement the method provided in an embodiment of the present application. For details, refer to the detailed description in the method examples, which will not be repeated here.

[0258] The communication apparatus 1100 can further include at least one memory 1110, which is used to store program instructions and / or data. The memory 1110 is coupled with the processor 1120. The coupling in an embodiment of the present application is indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information interaction between devices, units or modules. The processor 1110 can operate in cooperation with the memory 1120. The processor 1110 can execute program instructions stored in the memory 1120. At least one of the at least one memory can be included in the processor.

[0259] The communication apparatus 1100 can further include a communication interface 1130, which is used to communicate with other devices through a transmission medium, so that the devices in the communication apparatus 1100 can communicate with other devices. Exemplarily, the communication interface can be a transceiver, a circuit, a bus, a module, a pin or other types of communication interfaces. Exemplarily, the communication apparatus 1100 is a terminal device, and the other device is a network device. The processor 1120 transceives data by using the communication interface 1130, and is used to implement Figures 4 to 7 the method executed by the terminal device in the corresponding embodiment.

[0260] In an embodiment of the present application, the specific connection medium between the communication interface 1130, the processor 1120 and the memory 1110 is not limited. In Figure 11 the above description, the memory 1110, the processor 1120 and the communication interface 1130 are connected through a bus 1140, and the bus is connected through Figure 11The connection between the other components is shown by a thick line, and the connection mode between the other components is only schematically shown and is not limited. The bus can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For convenience of representation, Figure 11 Only one thick line is used in the figure, but it does not mean that there is only one bus or only one type of bus.

[0261] Those skilled in the art can appreciate that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0262] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0263] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be realized by other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0264] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0265] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0266] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the parts of the present application that essentially contribute to the prior art or the parts of the technical solutions can be embodied in the form of software products. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0267] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for waking up a terminal device, applied to a first terminal device, characterized in that, Comprising: receiving configuration information of a first wake-up indication and configuration information of a second wake-up indication, the first wake-up indication being used to indicate whether the first terminal device is woken up, and the second wake-up indication being used to indicate whether at least one terminal device including the first terminal device is woken up; the first terminal device detecting the first wake-up indication and the second wake-up indication according to the configuration information of the first wake-up indication and the configuration information of the second wake-up indication.

2. The method of claim 1, wherein, Further comprising: when the first terminal device detects the second wake-up indication but does not detect the first wake-up indication, the first terminal device determining whether to be woken up according to the second wake-up indication.

3. The method according to claim 1 or 2, characterized in that, Further comprising: when the first terminal device detects the first wake-up indication and the second wake-up indication, the first terminal device determining whether to be woken up according to the first wake-up indication.

4. The method according to any one of claims 1 to 3, characterized in that, Further comprising: when the first terminal device does not detect the first wake-up indication and the second wake-up indication, the first terminal device determining not to be woken up.

5. The method according to any one of claims 1 to 4, characterized in that, The first wake-up indication is contained in a first wake-up channel for the first terminal device, or contained in a first wake-up channel for a first group of terminal devices including the first terminal device.

6. The method according to any one of claims 1 to 5, characterized in that, The second wake-up indication is a second wake-up signal, or the second wake-up indication is contained in a second wake-up channel for a second group of terminal devices including the first terminal device.

7. The method according to any one of claims 1 to 6, characterized in that, The channels where the first wake-up indication and the second wake-up indication are located are both physical downlink control channels (PDCCH).

8. The method according to any one of claims 1 to 6, characterized in that, The channel where the first wake-up indication is located is a PDCCH, and the second wake-up indication is a first demodulation reference signal.

9. The method of claim 8, wherein, The configuration information of the second wake-up indication includes a first scrambling code of the second wake-up indication, the first demodulation reference signal is scrambled using the first scrambling code, a second demodulation reference signal is scrambled using a second scrambling code, and the first scrambling code is different from the second scrambling code.

10. A method for waking up a terminal device, applied to a network device, comprising: Comprising: sending configuration information of a first wake-up indication and configuration information of a second wake-up indication, the first wake-up indication being used to indicate whether a first terminal device is woken up, and the second wake-up indication being used to indicate whether at least one terminal device including the first terminal device is woken up; sending the second wake-up indication to the first terminal device, or the network device sending the first wake-up indication and the second wake-up indication to the first terminal device.

11. The method of claim 10, wherein, The network device sending the second wake-up indication to the first terminal device comprises: when the network device needs to wake up the first terminal device, the network device sends the second wake-up indication to the first terminal device, the second wake-up indication being used to indicate that the at least one terminal device is woken up.

12. The method of claim 10, wherein, The network device sending the first wake-up indication and the second wake-up indication to the first terminal device comprises: When the network device needs to wake up the first terminal device, the network device sends the first wake-up indication and the second wake-up indication to the first terminal device, the first wake-up indication is used to indicate that the first terminal device is woken up, and the second wake-up indication is used to indicate that the at least one terminal device is woken up or is used to indicate that the at least one terminal device is not woken up.

13. The method according to claim 10 or 12, characterized in that, The at least one terminal device further includes a second terminal device, and the network device sending the first wake-up indication and the second wake-up indication to the first terminal device includes: When the network device does not need to wake up the first terminal device but needs to wake up the second terminal device, the network device sends the first wake-up indication and the second wake-up indication to the first terminal device, the first wake-up indication is used to indicate that the first terminal device is not woken up, and the second wake-up indication is used to indicate that the at least one terminal device is woken up; The method further includes: When the network device does not need to wake up the first terminal device but needs to wake up the second terminal device, the network device sends the second wake-up indication to the second terminal device; or When the network device does not need to wake up the first terminal device but needs to wake up the second terminal device, the network device sends a third wake-up indication and the second wake-up indication to the second terminal device, the third wake-up indication is used to indicate that the second terminal device is woken up.

14. The method according to any one of claims 10 to 13, characterized in that, The first wake-up indication is included in a first wake-up channel for the first terminal device or is included in a first wake-up channel for a first group of terminal devices including the first terminal device.

15. The method according to any one of claims 10 to 14, characterized in that, The second wake-up indication is a second wake-up signal, or the second wake-up indication is included in a second wake-up channel for a second group of terminal devices including the first terminal device.

16. The method according to any one of claims 10 to 15, characterized in that, The channels where the first wake-up indication and the second wake-up indication are located are both physical downlink control channels (PDCCH).

17. The method according to any one of claims 10 to 15, characterized in that, The channel where the first wake-up indication is located is a PDCCH, and the second wake-up indication is a first demodulation reference signal.

18. The method of claim 17, wherein, Configuration information of the second wake-up indication includes a first scrambling code of the second wake-up indication, the first demodulation reference signal is scrambled using the first scrambling code, a second demodulation reference signal is scrambled using a second scrambling code, and the first scrambling code is different from the second scrambling code.

19. A communications device, characterized by A processor is included to be coupled with a memory, and the processor executes instructions in the memory to implement the method in any one of claims 1 to 18.

20. A computer-readable storage medium, characterized in that, Computer executable instructions are stored, and the computer executable instructions are configured to execute the method in any one of claims 1 to 18.

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