Signal transmission method and device

Abstract

The present application discloses a method and device for signal transmission, including: a terminal device determines a QCL relationship between a paging-related signal and an energy-saving signal, wherein the paging-related signal includes a physical downlink control channel PDCCH for scheduling a paging message and / or a physical downlink physical shared channel PDSCH for carrying the paging message; the terminal device receives the energy-saving signal based on the QCL relationship, or the terminal device receives the paging-related signal based on the QCL relationship. Therefore, by establishing a QCL relationship between the paging-related signal and the energy-saving signal, after the terminal device determines the receiving beam of the paging message and the corresponding spatial receiving parameters, the energy-saving signal can be received based on the receiving beam of the paging message and the spatial receiving parameters, thereby avoiding the reception of energy-saving signals on all beams sent by the network device, thereby achieving the purpose of energy saving.

Description

[0001] This application is a divisional application of the PCT international patent application PCT / CN2018 / 081456 with an application date of March 30, 2018, which has entered the Chinese national phase with Chinese patent application number 201880091733.7 and the invention name “Method and device for signal transmission”. Technical Field

[0002] Embodiments of the present application relate to the field of communications, and more specifically, to a method and device for signal transmission. Background Art

[0003] For the purpose of power saving of terminal devices, the discontinuous reception (DRX) mechanism is introduced. Each DRX cycle includes an on duration and an opportunity for DRX. When in the on duration, the terminal device detects the control channel, while in the opportunity for DRX, the terminal device can stop receiving the control channel (the terminal device stops blind detection of the control channel) to reduce power consumption and thus increase battery life.

[0004] In the 5G system, an energy-saving signal is introduced to control the state of the terminal device to achieve the purpose of energy saving. For example, the energy-saving signal can be a wake-up signal, which is used to instruct the terminal device to wake up during the "activation period" within the DRX cycle. When the terminal device detects the wake-up signal, it will wake up during the "activation period" to detect the PDCCH. When the terminal device does not detect the wake-up signal, it will not perform PDCCH detection.

[0005] Therefore, how to ensure the transmission performance of such energy-saving signals to achieve further energy saving of terminal devices has become an urgent problem to be solved. Summary of the invention

[0006] The embodiments of the present application provide a method and device for signal transmission, which can improve the transmission performance of energy-saving signals and other signals associated with energy-saving signals, and further reduce the power consumption of terminal devices.

[0007] In a first aspect, a method for signal transmission is provided, comprising: a terminal device determines a quasi-co-location QCL relationship between a paging-related signal and an energy-saving signal, wherein the paging-related signal includes a physical downlink control channel PDCCH for scheduling a paging message and / or a physical downlink physical shared channel PDSCH for carrying the paging message; the terminal device receives the energy-saving signal based on the QCL relationship, or the terminal device receives the paging-related signal based on the QCL relationship

[0008] Therefore, by establishing a QCL relationship between the paging-related signal and the energy-saving signal, after the terminal device determines the receiving beam of the paging message and the corresponding spatial receiving parameters, it can receive the energy-saving signal based on the receiving beam and spatial receiving parameters of the paging message, thereby avoiding the reception of energy-saving signals on all beams sent by the network device and achieving the purpose of energy saving.

[0009] In combination with the first aspect, in a possible implementation of the first aspect, the QCL relationship between the paging-related signal and the energy-saving signal indicates that a QCL relationship is satisfied between a demodulation reference signal DMRS antenna port that receives the paging-related signal and a DMRS antenna port associated with reception of the energy-saving signal.

[0010] In combination with the first aspect or any one of the above possible implementations, in another possible implementation of the first aspect, the QCL relationship includes a QCL relationship between the paging-related signal and the energy-saving signal in at least one of the following aspects: delay spread, Doppler spread, Doppler frequency shift, average delay and spatial reception parameters.

[0011] In combination with the first aspect or any one of the above possible implementations, in another possible implementation of the first aspect, the QCL relationship includes: a QCL relationship between the paging-related signal and the energy-saving signal associated with the paging-related signal.

[0012] The energy-saving signal associated with the paging-related signal includes: an energy-saving signal that satisfies a predetermined relationship with the paging-related signal in the time domain and / or frequency domain.

[0013] In combination with the first aspect or any one of the above possible implementations, in another possible implementation of the first aspect, the terminal device determines the QCL relationship between the paging-related signal and the energy-saving signal, including: the terminal device obtains the QCL relationship pre-stored in the terminal device; or, the terminal device receives configuration information sent by a network device, and the configuration information is used to indicate the QCL relationship.

[0014] In combination with the first aspect or any one of the above possible implementations, in another possible implementation of the first aspect, the QCL relationship includes a QCL relationship in terms of spatial reception parameters, wherein the terminal device receives the energy-saving signal based on the QCL relationship, including: the terminal device uses the optimal reception beam of the paging-related signal and the spatial reception parameters corresponding to the optimal reception beam to receive the energy-saving signal.

[0015] Therefore, in an embodiment of the present application, by establishing a QCL relationship between the paging-related signal and the energy-saving signal, after the terminal device determines the receiving beam of the paging message and the corresponding spatial receiving parameters, it can receive the energy-saving signal based on the receiving beam and spatial receiving parameters of the paging message, thereby avoiding the reception of energy-saving signals on all beams sent by the network device and achieving the purpose of energy saving.

[0016] In combination with the first aspect or any one of the above possible implementations, in another possible implementation of the first aspect, the method also includes: the terminal device performs time-frequency synchronization based on the energy-saving signal, and obtains the time-frequency synchronization parameters of the energy-saving signal; wherein, the terminal device receives the paging-related signal based on the QCL relationship, including: the terminal device uses the time-frequency synchronization parameters of the energy-saving signal to receive the paging-related signal.

[0017] Therefore, in this embodiment, when the terminal device learns that a paging message is transmitted in a specific paging cycle based on the indication of the energy-saving signal, the terminal device needs to receive the paging message in the paging cycle. If the energy-saving signal is a sequence and the sequence has the function of time-frequency synchronization, then the terminal device can perform time-frequency synchronization based on the energy-saving signal, and obtain the time-frequency synchronization parameters of the energy-saving signal, such as time deviation and frequency deviation, and receive the paging-related signal that satisfies the QCL relationship with the energy-saving signal based on these time-frequency synchronization parameters, thereby improving the reception performance of the paging-related signal.

[0018] In combination with the first aspect or any one of the above possible implementations, in another possible implementation of the first aspect, the method also includes: the terminal device determines the timing relationship between the paging-related signal and the energy-saving signal; wherein, the terminal device receives the energy-saving signal based on the QCL relationship, including: the terminal device receives the energy-saving signal based on the QCL relationship and the timing relationship; the terminal device receives the paging-related signal based on the QCL relationship, including: the terminal device receives the paging-related signal based on the QCL relationship and the timing relationship.

[0019] In a second aspect, a method for signal transmission is provided, comprising: the network device sends an energy-saving signal and a paging-related signal so that the terminal device receives the paging-related signal or the energy-saving signal based on a quasi-co-location QCL relationship between the paging-related signal and the energy-saving signal, wherein the paging-related signal includes a physical downlink control channel PDCCH for scheduling paging messages and / or a physical downlink physical shared channel PDSCH for carrying the paging message.

[0020] Therefore, by establishing a QCL relationship between the paging-related signal and the energy-saving signal, after the terminal device determines the receiving beam of the paging message and the corresponding spatial receiving parameters, it can receive the energy-saving signal based on the receiving beam and spatial receiving parameters of the paging message, thereby avoiding the reception of energy-saving signals on all beams sent by the network device and achieving the purpose of energy saving.

[0021] In combination with the second aspect, in a possible implementation of the second aspect, the QCL relationship between the paging-related signal and the energy-saving signal indicates that a QCL relationship is satisfied between a demodulation reference signal DMRS antenna port that receives the paging-related signal and a DMRS antenna port associated with reception of the energy-saving signal.

[0022] In combination with the second aspect or any one of the above possible implementations, in another possible implementation of the second aspect, the QCL relationship includes a QCL relationship between the paging-related signal and the energy-saving signal in at least one of the following aspects: delay spread, Doppler spread, Doppler frequency shift, average delay and spatial reception parameters.

[0023] In combination with the second aspect or any one of the above possible implementations, in another possible implementation of the second aspect, the QCL relationship includes: a QCL relationship between the paging-related signal and the energy-saving signal associated with the paging-related signal.

[0024] The energy-saving signal associated with the paging-related signal includes: an energy-saving signal that satisfies a predetermined relationship with the paging-related signal in the time domain and / or frequency domain.

[0025] In combination with the second aspect or any one of the above possible implementations, in another possible implementation of the second aspect, the QCL relationship includes a QCL relationship in terms of spatial reception parameters, wherein the network device sends the energy-saving signal and the paging-related signal, including: the network device sends the paging-related signal, and uses the transmission beam of the paging-related signal to send the energy-saving signal associated with the paging-related signal.

[0026] In combination with the second aspect or any of the foregoing possible implementations, in another possible implementation of the second aspect, the method further includes: determining, by the network device, a timing relationship between the paging-related signal and the energy-saving signal;

[0027] The network device sending the energy-saving signal and the paging-related signal includes: the network device sending the energy-saving signal and the paging-related signal according to the timing relationship.

[0028] In combination with the second aspect or any one of the above possible implementations, in another possible implementation of the second aspect, the method further includes: the network device sends configuration information to the terminal device, and the configuration information is used to indicate the QCL relationship.

[0029] In a third aspect, a terminal device is provided, which can perform the operations of the terminal device in the first aspect or any optional implementation of the first aspect. Specifically, the terminal device may include a terminal device for performing the first aspect or any possible implementation of the first aspect.

[0030] In a fourth aspect, a network device is provided, which can perform the operations of the network device in the second aspect or any optional implementation of the second aspect. Specifically, the network device may include a network device for performing the second aspect or any possible implementation of the second aspect.

[0031] In a fifth aspect, a terminal device is provided, the terminal device comprising: a processor, a transceiver, and a memory. The processor, the transceiver, and the memory communicate with each other through an internal connection path. The memory is used to store instructions, and the processor is used to execute the instructions stored in the memory. When the processor executes the instructions stored in the memory, the execution causes the terminal device to execute the method in the first aspect or any possible implementation of the first aspect, or the execution causes the terminal device to implement the terminal device provided by the third aspect.

[0032] In a sixth aspect, a network device is provided, the network device comprising: a processor, a transceiver and a memory. The processor, the transceiver and the memory communicate with each other through an internal connection path. The memory is used to store instructions, and the processor is used to execute the instructions stored in the memory. When the processor executes the instructions stored in the memory, the execution causes the network device to execute the method in the second aspect or any possible implementation of the second aspect, or the execution causes the network device to implement the network device provided in the fourth aspect.

[0033] In the seventh aspect, a system chip is provided, which includes an input interface, an output interface, a processor and a memory, wherein the processor is used to execute instructions stored in the memory. When the instructions are executed, the processor can implement the method in the aforementioned first aspect or any possible implementation of the first aspect.

[0034] In an eighth aspect, a system chip is provided, which includes an input interface, an output interface, a processor and a memory, wherein the processor is used to execute instructions stored in the memory. When the instructions are executed, the processor can implement the method in the aforementioned second aspect or any possible implementation of the second aspect.

[0035] In a ninth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute the method in the first aspect or any possible implementation of the first aspect.

[0036] In a tenth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute the method in the second aspect or any possible implementation of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of a possible wireless communication system applied in an embodiment of the present application.

[0038] Figure 2 It is a schematic diagram of the DRX cycle.

[0039] Figure 3 is a schematic diagram of beam scanning for paging messages.

[0040] Figure 4 It is a flow chart of the signal transmission method according to an embodiment of the present application.

[0041] Figure 5 It is a schematic diagram of an energy-saving signal and a paging-related signal associated with the energy-saving signal according to an embodiment of the present application.

[0042] Figure 6 It is a schematic block diagram of a terminal device according to an embodiment of the present application.

[0043] Figure 7 It is a schematic block diagram of a network device according to an embodiment of the present application.

[0044] Figure 8 It is a schematic structural diagram of a communication device according to an embodiment of the present application.

[0045] Fig. 9 It is a schematic structural diagram of the system chip of an embodiment of the present application. DETAILED DESCRIPTION

[0046] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or future 5G system.

[0047] Figure 1 A wireless communication system 100 applied in an embodiment of the present application is shown. The wireless communication system 100 may include a network device 110. The network device 100 may be a device that communicates with a terminal device. The network device 100 may provide communication coverage for a specific geographical area, and may communicate with a terminal device (e.g., UE) located in the coverage area. Optionally, the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station (EvolutionalNode B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network-side device in a future 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

[0048] The wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110. The terminal device 120 may be mobile or fixed. Optionally, the terminal device 120 may refer to an access terminal, a user equipment (UE), a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved PLMN, etc. Optionally, terminal devices 120 may also perform device to device (D2D) communication.

[0049] Figure 1 One network device and two terminal devices are shown exemplarily. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0050] Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0051] The DRX cycle of the terminal device includes an activation period (on duration) and a dormant period (Opportunity for DRX), for example Figure 2 As shown, the terminal device can detect the Physical Downlink Control Channel (PDCCH) during the activation period, i.e., the on duration period, and the terminal device can reduce power consumption by stopping receiving PDCCH (at this time, the terminal device will stop blind detection of PDCCH or paging messages) during the sleep period, i.e., the Opportunity for DRX period, thereby improving battery life. It can also be said that during the wake-up period, the terminal device is in an awake state to detect PDCCH, and during the sleep period, the terminal device enters a sleep state and does not detect channels or signals.

[0052] Although the network configures the DRX cycle for the terminal device so that the terminal device periodically detects the PDCCH during the active period, the terminal device is only opportunistically scheduled during the active period. Even when the service load is very low, the terminal device will only be scheduled in a few DRX cycles. For paging messages using the DRX mechanism, the terminal device has fewer opportunities to receive paging messages. Therefore, after the DRX mechanism is configured, the terminal device may not detect the control channel during the active period of most DRX cycles, but the terminal device will still be awakened during these DRX active periods, which increases the unnecessary power consumption of the terminal device.

[0053] Therefore, a power saving signal is introduced in the 5G system to control the state of the terminal device to achieve the purpose of energy saving. The power saving signal is used to control the wake-up and sleep state of the terminal device so that the power consumption of the terminal device can be reduced. For example, the power saving signal can be a wake-up signal, which is used to instruct the terminal device to wake up during the "activation period" in the DRX cycle. When the terminal device detects the wake-up signal, it can wake up in one or more subsequent "activation periods" to detect PDCCH. When the terminal device does not detect the wake-up signal, it can remain in a sleep state without performing PDCCH detection in one or more subsequent activation periods; or, the wake-up signal is used to instruct the terminal device to sleep during the "activation period" in the DRX cycle. When the terminal device does not detect the wake-up signal, it can wake up normally in one or more subsequent "activation periods" to detect PDCCH. When the terminal device detects the wake-up signal, it can remain in a sleep state without performing PDCCH detection in one or more subsequent activation periods. Since this type of indication information is conducive to energy saving of terminal devices, we call it a power saving signal.

[0054] Improving the transmission performance of energy-saving signals can be beneficial to further energy saving of terminal devices. Therefore, the embodiment of the present application proposes to establish a quasi-co-located (QCL) relationship between the reception of energy-saving signals and the reception of paging messages to improve the reception performance of energy-saving signals and paging-related signals.

[0055] The terminal device receives the paging message in a specific subframe (called the paging occasion (PO)) in a specific frame (called the paging radio frame or paging frame (PF)) in its paging cycle. The terminal device will detect whether there is its own paging message in the PO. The PO is a subframe on which there may be a PDCCH that is scrambled with the Paging Radio Network Temporary Identity (P-RNTI) and indicates the paging message. When the DRX mechanism is adopted, the terminal device only needs to detect one PO in each DRX cycle, that is, corresponding to each terminal device, there is only one subframe in each paging cycle used to transmit the paging message. The transmission of paging messages can be understood as a DRX mechanism, and the length of the paging cycle can be equal to the length of the DRX cycle.

[0056] In the 5G system, the transmission of paging messages needs to support beam scanning, that is, in each PO, the network equipment needs to send the paging message in a beam scanning manner using various spatial beams to ensure complete coverage of the paging message in the entire cell. Figure 3 As shown, in each PO, the network device will use beam 1 to beam N to send the paging message so that the terminal devices at all locations in the cell can detect the paging message.

[0057] Figure 4 It is a flow chart of the signal transmission method 400 according to an embodiment of the present application. Figure 4 The terminal device shown in FIG. 1 may be, for example, Figure 1 The terminal device 120 shown in FIG. Figure 4 The network device shown in FIG. 1 may be, for example, Figure 1 The network device 110 shown in FIG. Figure 4 As shown, the signal transmission method 400 includes:

[0058] In 410, the network device sends a power saving signal and a paging-related signal.

[0059] It can be understood that the network device can send the energy-saving signal and the paging-related signal to the terminal device based on the QCL relationship between the paging-related signal and the energy-saving signal, so that when the terminal device receives the energy-saving signal or the paging-related signal, it can receive the paging-related signal or the energy-saving signal based on the QCL relationship between the paging-related signal and the energy-saving signal.

[0060] Optionally, the paging-related signal includes a PDCCH that schedules a paging message, and / or a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) that carries the paging message.

[0061] In other words, the paging-related signal may be a paging message, or a PDCCH used to schedule the paging message.

[0062] Optionally, the method further includes: the network device sending configuration information to the terminal device, where the configuration information is used to indicate the QCL relationship.

[0063] In 420, the terminal device determines the QCL relationship between the paging-related signal and the energy-saving signal.

[0064] Optionally, the QCL relationship between the paging-related signal and the energy-saving signal indicates that a QCL relationship is satisfied between a demodulation reference signal (DMRS) antenna port receiving the paging-related signal and a DMRS antenna port associated with receiving the energy-saving signal.

[0065] Optionally, the QCL relationship includes a QCL relationship between the paging-related signal and the energy-saving signal in at least one of the following aspects: delay spread, Doppler spread, Doppler shift, average delay and spatial reception parameters.

[0066] That is, the DMRS antenna port receiving the paging-related signal and the DMRS antenna port associated with receiving the energy-saving signal are QCL in one or more aspects of delay spread, Doppler spread, Doppler frequency shift, average delay and spatial reception parameters.

[0067] For example, when the energy-saving signal and the paging-related signal satisfy the QCL relationship in terms of average delay and delay spread, the terminal device can obtain the time synchronization deviation of the paging-related signal based on the time synchronization deviation estimation of the energy-saving signal.

[0068] For another example, when the two signals satisfy the QCL relationship in terms of Doppler spread and Doppler frequency shift, the terminal device can obtain the frequency synchronization deviation of the paging-related signal based on the frequency deviation estimation of the energy-saving signal. Furthermore, the terminal device can compensate for the time-frequency deviation of the paging-related signal based on the obtained time synchronization deviation of the paging-related signal and the frequency synchronization deviation of the paging-related signal to improve the reception performance of the paging-related signal.

[0069] For another example, when the energy-saving signal and the paging-related signal satisfy the QCL relationship in terms of spatial reception parameters, the two signals can be sent by the network device using the same transmission beam. For the beam scanning scenario, both the paging-related signals and the energy-saving-related signals are sent by beam scanning. If the quality of the paging-related signal detected by the terminal device on a certain beam, such as beam i, is optimal, the terminal device can determine that the reception quality of the energy-saving signal sent using beam i is also optimal based on the QCL relationship in terms of spatial reception parameters. Correspondingly, the terminal device can directly use the beam i and the corresponding receiver parameters to detect the energy-saving signal. And vice versa.

[0070] It should be understood that in the embodiments of the present application, the beam used to receive a signal can be understood as the spatial domain reception filter used to receive a signal; the beam used to send a signal can be understood as the spatial domain transmission filter used to send a signal. For two signals sent using the same spatial domain transmission filter, the two signals can be said to be quasi-co-located (QCL) with respect to spatial reception parameters.

[0071] To put it another way, if there is a QCL relationship between two antenna ports (or in other words, they have experienced QCL, satisfy the QCL relationship, and there is QCL between the two antenna ports), then the terminal device can assume that the large-scale properties and / or spatial reception parameters (spatial Rx parameters) of the signal or channel transmitted via one antenna port can be inferred from the signal or channel transmitted via the other antenna port. In other words, the large-scale properties and / or spatial reception parameters of the signal or channel from one antenna port are the same as the large-scale properties and / or spatial reception parameters of the signal or channel from another antenna port. The large-scale properties may include, for example, the above-mentioned delay spread, Doppler spread, Doppler shift, average delay, average gain and other parameters.

[0072] In this embodiment, the DMRS antenna port associated with the reception of the energy-saving signal can be understood as the DMRS antenna port used to transmit the energy-saving signal. However, when the energy-saving signal does not carry a DMRS sequence, for example, the energy-saving signal itself is a sequence, a DMRS antenna port will still be associated with the energy-saving signal. The DMRS antenna port is the DMRS antenna port associated with the reception of the energy-saving signal, and the energy-saving signal can be mapped to the DMRS antenna port associated with the energy-saving signal for transmission.

[0073] When the network device sends an energy-saving signal and a paging-related signal based on beam scanning, optionally, the QCL relationship includes: a QCL relationship between the paging-related signal and the energy-saving signal associated with the paging-related signal. The energy-saving signal associated with the paging-related signal includes: an energy-saving signal that satisfies a predetermined relationship with the paging-related signal in the time domain and / or frequency domain.

[0074] That is, the paging-related signal and the energy-saving signal that satisfy a predetermined relationship in the time domain and / or the frequency domain are the associated paging-related signal and the energy-saving signal.

[0075] For example, if Figure 5 As shown, in each PO, the energy-saving signal sent by beam 1 and the paging signal sent by beam 1 are separated by T1 in the time domain, the energy-saving signal sent by beam 2 and the paging signal sent by beam 2 are separated by T2 in the time domain, ..., and the energy-saving signal sent by beam N and the paging signal sent by beam N are separated by Tn in the time domain. T1 to Tn is the predetermined relationship, and T1 to Tn can be equal, unequal, or partially equal.

[0076] The energy-saving signal sent by beam 1 is the energy-saving signal associated with the paging signal sent by beam 1, the energy-saving signal sent by beam 2 is the energy-saving signal associated with the paging signal sent by beam 2, and so on. The energy-saving signal sent by beam N is the energy-saving signal associated with the paging signal sent by beam N.

[0077] Therefore, the energy-saving signal sent by beam 1 is QCL with the paging signal sent by beam 1, the energy-saving signal sent by beam 2 is QCL with the paging signal sent by beam 2, and so on. In turn, the energy-saving signal sent by beam N is QCL with the paging signal sent by beam N.

[0078] Optionally, in 420, the terminal device determines a QCL relationship between a paging-related signal and a power-saving signal, including: the terminal device acquires the QCL relationship pre-stored in the terminal device.

[0079] Or, optionally, in 420, the terminal device obtains the QCL information by receiving configuration information sent by a network device, where the configuration information is used to indicate the QCL relationship.

[0080] That is to say, the QCL relationship may be configured by the network device, or may be agreed upon in advance, such as stipulated in a protocol.

[0081] Optionally, the method 400 also includes 430.

[0082] In 430, the terminal device receives the energy-saving signal based on the QCL relationship, or the terminal device receives the paging-related signal based on the QCL relationship.

[0083] Optionally, the QCL relationship includes a QCL relationship in terms of spatial reception parameters, wherein, in 410, the network device sends the energy-saving signal and the paging-related signal, including: the network device sends the paging-related signal, and uses the transmission beam of the paging-related signal to send the energy-saving signal associated with the paging-related signal.

[0084] That is, the network device transmits the paging-related signal and the energy-saving signal associated with the paging-related signal using the same transmission beam.

[0085] Still Figure 5 For example, the network device uses beam 1 to send a paging signal, and uses beam 1 to send an energy-saving signal associated with the paging signal, wherein the energy-saving signal associated with the paging signal is an energy-saving signal that is separated from the paging signal by T1 in the time domain; the network device uses beam 2 to send a paging signal, and uses beam 2 to send an energy-saving signal associated with the paging signal, wherein the energy-saving signal associated with the paging signal is an energy-saving signal that is separated from the paging signal by T2 in the time domain; ...; sequentially, the network device uses beam N to send a paging signal, and uses beam N to send an energy-saving signal associated with the paging signal, wherein the energy-saving signal associated with the paging signal is an energy-saving signal that is separated from the paging signal by Tn in the time domain.

[0086] Correspondingly, optionally, the QCL relationship includes a QCL relationship in terms of spatial reception parameters. In 430, the terminal device receives the energy-saving signal based on the QCL relationship, including: the terminal device uses the optimal reception beam of the paging-related signal and the spatial reception parameters corresponding to the optimal reception beam to receive the energy-saving signal.

[0087] Still Figure 5 For example, the terminal device can select the optimal receiving beam for the paging message according to the detection result of the paging message in the current PO, i.e., the nth PO. For example, after detecting the paging messages of N beams, it is found that the paging message with the best reception quality is the paging message received on beam 2. Then, since there is a QCL relationship between the energy-saving signal and the paging-related signal in terms of spatial reception parameters, the terminal device can use beam 2 and the spatial reception parameters corresponding to beam 2, such as the configuration parameters of the receiving filter, to receive the energy-saving signal associated with the paging message in the next PO, i.e., the n+1th PO, without detecting the energy-saving signal on all N beams.

[0088] Therefore, according to an embodiment of the present application, by establishing a QCL relationship between the paging-related signal and the energy-saving signal, after the terminal device determines the receiving beam of the paging message and the corresponding spatial receiving parameters, it can receive the energy-saving signal based on the receiving beam and spatial receiving parameters of the paging message, thereby avoiding the reception of energy-saving signals on all beams sent by the network device and achieving the purpose of energy saving.

[0089] Optionally, the method further includes: the terminal device performs time-frequency synchronization based on the energy-saving signal, and obtains time-frequency synchronization parameters of the energy-saving signal.

[0090] Among them, in 430, the terminal device receives the paging-related signal based on the QCL relationship, including: the terminal device uses the time-frequency synchronization parameter of the energy-saving signal to receive the paging-related signal.

[0091] When the terminal device learns, based on the indication of the energy-saving signal, that there is a paging message to be transmitted in a specific paging cycle, the terminal device needs to receive the paging message in the paging cycle. If the energy-saving signal is a sequence and the sequence has the function of time-frequency synchronization, then the terminal device can perform time-frequency synchronization based on the energy-saving signal, and obtain the time-frequency synchronization parameters of the energy-saving signal, such as time deviation and frequency deviation, and based on these time-frequency synchronization parameters, receive the paging-related signal that satisfies the QCL relationship with the energy-saving signal, thereby improving the reception performance of the paging message and the PDCCH that schedules the paging message.

[0092] Optionally, the method further includes: the network device determining a timing relationship between the paging-related signal and the energy-saving signal. In 410, the network device may send the energy-saving signal and the paging-related signal according to the timing relationship.

[0093] Correspondingly, optionally, the method further includes: the terminal device determining a timing relationship between the paging-related signal and the energy-saving signal.

[0094] The timing relationship may be configured by the network device for the terminal device, or may be pre-stored in the terminal device, for example, the timing relationship is agreed in advance by a protocol.

[0095] In 430, the terminal device may receive the energy-saving signal based on the QCL relationship and the timing relationship; or, the terminal device may receive the paging-related signal based on the QCL relationship and the timing relationship.

[0096] The timing relationship between the paging-related signal and the energy-saving signal, that is, the time relationship between the time when the network device sends the paging-related signal and the time when the network device sends the energy-saving signal, is also the time relationship between the time when the terminal device receives the paging-related signal and the time when the terminal device receives the energy-saving signal. For example, if the timing relationship indicates that the energy-saving signal is located before its associated paging-related signal by TA time length, then after the terminal device receives the energy-saving signal, it can receive the PDCCH or the paging message that schedules the paging message and satisfies the QCL relationship with the energy-saving signal after TA time length based on the QCL relationship. Alternatively, if the terminal device determines the PO used to receive the paging message, it can also determine the time position for receiving the energy-saving signal, so that it can receive the energy-saving signal and the paging message that satisfy the QCL relationship at the corresponding time position based on the QCL relationship.

[0097] In an embodiment of the present application, since the reception of energy-saving signals and the reception of paging-related signals satisfy the QCL relationship, the terminal device can receive the energy-saving signal based on the reception status of the paging-related signals and the QCL relationship, thereby improving the transmission performance of the energy-saving signal, and the terminal device can receive the paging-related signal based on the reception status of the energy-saving signal and the QCL relationship, thereby improving the transmission performance of the paging-related signal.

[0098] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0099] The signal transmission method according to the embodiment of the present application is described in detail above. Figures 6 to 9 , describing the technical features described in the device and method embodiments according to the embodiments of the present application are applicable to the following device embodiments.

[0100] Figure 6 600 is a schematic block diagram of a terminal device according to an embodiment of the present application. Figure 6 As shown, the terminal device 600 includes a processing unit 610 and a transceiver unit 620, wherein:

[0101] The processing unit 610 is configured to determine a quasi-co-location QCL relationship between a paging-related signal and an energy-saving signal, wherein the paging-related signal includes a physical downlink control channel PDCCH for scheduling a paging message and / or a physical downlink physical shared channel PDSCH for carrying the paging message;

[0102] The transceiver unit 620 is configured to receive the energy-saving signal based on the QCL relationship determined by the processing unit 610, or to receive the paging-related signal based on the QCL relationship.

[0103] Therefore, since the reception of energy-saving signals and the reception of paging-related signals satisfy the QCL relationship, the terminal device can receive the energy-saving signal based on the reception status of the paging-related signals and the QCL relationship, thereby improving the transmission performance of the energy-saving signal, and the terminal device can receive the paging-related signal based on the reception status of the energy-saving signal and the QCL relationship, thereby improving the transmission performance of the paging-related signal.

[0104] Optionally, the QCL relationship between the paging-related signal and the energy-saving signal indicates that a QCL relationship is satisfied between a demodulation reference signal DMRS antenna port that receives the paging-related signal and a DMRS antenna port associated with reception of the energy-saving signal.

[0105] Optionally, the QCL relationship includes a QCL relationship between the paging-related signal and the energy-saving signal in at least one of the following aspects: delay spread, Doppler spread, Doppler frequency shift, average delay and spatial reception parameter.

[0106] Optionally, the QCL relationship includes: a QCL relationship between the paging-related signal and the energy-saving signal associated with the paging-related signal, wherein the energy-saving signal associated with the paging-related signal includes: an energy-saving signal that satisfies a predetermined relationship with the paging-related signal in the time domain and / or frequency domain.

[0107] Optionally, the processing unit 610 is specifically used to: obtain the QCL relationship pre-stored in the terminal device; or, receive configuration information sent by a network device through the transceiver unit 620, where the configuration information is used to indicate the QCL relationship.

[0108] Optionally, the QCL relationship includes a QCL relationship in terms of spatial reception parameters, wherein the transceiver unit 620 is specifically used to: receive the energy-saving signal using the optimal reception beam of the paging-related signal and the spatial reception parameters corresponding to the optimal reception beam.

[0109] Optionally, the processing unit 610 is further configured to: perform time-frequency synchronization based on the energy-saving signal, and obtain a time-frequency synchronization parameter of the energy-saving signal;

[0110] The transceiver unit 620 is specifically configured to: receive the paging-related signal using the time-frequency synchronization parameter acquired by the processing unit 610 of the energy-saving signal.

[0111] Optionally, the processing unit 610 is further configured to: determine a timing relationship between the paging-related signal and the energy-saving signal;

[0112] The transceiver unit 620 is specifically used to: receive the energy-saving signal based on the QCL relationship and the timing relationship, or receive the paging-related signal based on the QCL relationship and the timing relationship.

[0113] It should be understood that the terminal device 600 can execute the corresponding operations performed by the terminal device in the above method 400, which will not be repeated here for the sake of brevity.

[0114] Figure 7 is a schematic block diagram of a network device 700 according to an embodiment of the present application. Figure 7 As shown, the network device 700 includes a processing unit 710 and a transceiver unit 720. Among them:

[0115] The processing unit 710 is configured to generate the energy-saving signal and the paging-related signal;

[0116] The transceiver unit 720 is used to send the energy-saving signal and the paging-related signal generated by the processing unit 710, so that the terminal device receives the paging-related signal or the energy-saving signal based on the quasi-co-location QCL relationship between the paging-related signal and the energy-saving signal, wherein the paging-related signal includes a physical downlink control channel PDCCH for scheduling paging messages and / or a physical downlink physical shared channel PDSCH for carrying the paging messages.

[0117] Therefore, since the reception of energy-saving signals and the reception of paging-related signals satisfy the QCL relationship, the terminal device can receive the energy-saving signal based on the reception status of the paging-related signals and the QCL relationship, thereby improving the transmission performance of the energy-saving signal, and the terminal device can receive the paging-related signal based on the reception status of the energy-saving signal and the QCL relationship, thereby improving the transmission performance of the paging-related signal.

[0118] Optionally, the QCL relationship between the paging-related signal and the energy-saving signal indicates that a QCL relationship is satisfied between a demodulation reference signal DMRS antenna port that receives the paging-related signal and a DMRS antenna port associated with reception of the energy-saving signal.

[0119] Optionally, the QCL relationship includes a QCL relationship between the paging-related signal and the energy-saving signal in at least one of the following aspects: delay spread, Doppler spread, Doppler frequency shift, average delay and spatial reception parameter.

[0120] Optionally, the QCL relationship includes: a QCL relationship between the paging-related signal and the energy-saving signal associated with the paging-related signal, wherein the energy-saving signal associated with the paging-related signal includes: an energy-saving signal that satisfies a predetermined relationship with the paging-related signal in the time domain and / or frequency domain.

[0121] Optionally, the QCL relationship includes a QCL relationship in terms of spatial reception parameters, wherein the transceiver unit 720 is specifically used to: send the paging-related signal, and use the transmission beam of the paging-related signal to send the energy-saving signal associated with the paging-related signal.

[0122] Optionally, the processing unit 710 is further configured to: determine a timing relationship between the paging-related signal and the energy-saving signal;

[0123] The transceiver unit 720 is specifically configured to send the energy-saving signal and the paging-related signal according to the timing relationship.

[0124] Optionally, the transceiver unit 720 is further used to: send configuration information to a terminal device, where the configuration information is used to indicate the QCL relationship.

[0125] It should be understood that the network device 700 can execute the corresponding operations performed by the network device in the above method 400, which will not be described in detail here for the sake of brevity.

[0126] Figure 8 8 is a schematic structural diagram of a communication device 800 according to an embodiment of the present application. Figure 8 As shown, the communication device includes a processor 810, a transceiver 820 and a memory 830, wherein the processor 810, the transceiver 820 and the memory 830 communicate with each other through an internal connection path. The memory 830 is used to store instructions, and the processor 810 is used to execute the instructions stored in the memory 830 to control the transceiver 820 to receive or send signals.

[0127] Optionally, the processor 810 may call program codes stored in the memory 830 to execute corresponding operations of the terminal device in the method 400, which will not be described in detail here for the sake of brevity.

[0128] Optionally, the processor 810 may call program codes stored in the memory 830 to execute corresponding operations performed by the network device in the method 400, which will not be described in detail here for the sake of brevity.

[0129] It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and performed. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0130] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM) and direct memory bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described in the present application is intended to include, but is not limited to, these and any other suitable types of memory.

[0131] Fig. 9 It is a schematic structural diagram of the system chip of an embodiment of the present application. Fig. 9 The system chip 900 includes an input interface 901, an output interface 902, at least one processor 903, and a memory 904. The input interface 901, the output interface 902, the processor 903, and the memory 904 are interconnected through an internal connection path. The processor 903 is used to execute the code in the memory 904.

[0132] Optionally, when the code is executed, the processor 903 may implement the corresponding operations performed by the terminal device in the method 400. For the sake of brevity, it will not be described in detail here.

[0133] Optionally, when the code is executed, the processor 903 may implement the corresponding operations performed by the network device in the method 400. For the sake of brevity, it will not be described in detail here.

[0134] It should be understood that in the embodiment of the present invention, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0135] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0136] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0137] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0138] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0139] In addition, each functional unit in each embodiment of the present application may be integrated into one monitoring unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0140] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0141] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A signal transmission method, characterized in that: The method comprises: The terminal device determines a quasi-co-location QCL relationship between a paging-related signal and an energy-saving signal, wherein the paging-related signal includes a physical downlink control channel PDCCH for scheduling a paging message and / or a physical downlink physical shared channel PDSCH for carrying the paging message, and the QCL relationship includes a QCL relationship between the paging-related signal and the energy-saving signal in at least one of the following aspects: delay spread, Doppler spread, Doppler frequency shift, average delay, and spatial reception parameters; The terminal device receives the energy-saving signal based on the QCL relationship, or the terminal device receives the paging-related signal based on the QCL relationship, Among them, the terminal device determines the QCL relationship between the paging-related signal and the energy-saving signal, including: in response to each paging moment including paging-related signals sent by N beams, determining a one-to-one QCL relationship between the energy-saving signals sent by N beams and the paging-related signals sent by N beams, wherein the paging-related signal sent by the i-th beam and the energy-saving signal sent by the i-th beam are separated by Ti in the time domain, where i=1, 2,…, N, and T1 to TN are unequal or partially equal, and there is a QCL relationship between the paging-related signal sent by the i-th beam and the energy-saving signal sent by the i-th beam.

2. The method according to claim 1, characterized in that The QCL relationship between the paging-related signal and the energy-saving signal represents: A QCL relationship is satisfied between a demodulation reference signal DMRS antenna port for receiving the paging-related signal and a DMRS antenna port associated with receiving the energy-saving signal.

3. The method according to claim 1 or 2, characterized in that: The terminal device determines a QCL relationship between a paging-related signal and an energy-saving signal, including: The terminal device acquires the QCL relationship pre-stored in the terminal device; or, The terminal device receives configuration information sent by a network device, where the configuration information is used to indicate the QCL relationship.

4. The method according to claim 1 or 2, characterized in that: The method further comprises: The terminal device determines a timing relationship between the paging-related signal and the energy-saving signal; The terminal device receiving the energy-saving signal based on the QCL relationship includes: the terminal device receiving the energy-saving signal based on the QCL relationship and the timing relationship; The terminal device receives the paging-related signal based on the QCL relationship, including: the terminal device receives the paging-related signal based on the QCL relationship and the timing relationship.

5. A signal transmission method, characterized in that: The method comprises: The network device generates energy saving signals and paging related signals; The network device sends the energy-saving signal and the paging-related signal generated by the network device, so that the terminal device receives the paging-related signal or the energy-saving signal based on the quasi-co-location QCL relationship between the paging-related signal and the energy-saving signal, wherein the paging-related signal includes a physical downlink control channel PDCCH for scheduling a paging message and / or a physical downlink physical shared channel PDSCH for carrying the paging message, and the QCL relationship includes a QCL relationship between the paging-related signal and the energy-saving signal in at least one of the following aspects: delay spread, Doppler spread, Doppler frequency shift, average delay and spatial reception parameter, In which, in response to each paging moment including paging-related signals sent by N beams, a one-to-one QCL relationship between energy-saving signals sent by N beams and paging-related signals sent by N beams is determined, wherein the paging-related signal sent by the i-th beam and the energy-saving signal sent by the i-th beam are separated by Ti in the time domain, where i=1, 2,…, N, and T1 to TN are unequal or partially equal, and there is a QCL relationship between the paging-related signal sent by the i-th beam and the energy-saving signal sent by the i-th beam.

6. The method according to claim 5, characterized in that in, The QCL relationship includes a QCL relationship in terms of a spatial reception parameter, and the network device sends the energy-saving signal and the paging-related signal, including: The network device transmits the paging-related signal, and transmits the energy-saving signal associated with the paging-related signal using a transmission beam of the paging-related signal.

7. The method according to claim 5 or 6, characterized in that: The method further comprises: The network device determines a timing relationship between the paging-related signal and the energy-saving signal; The network device sending the energy-saving signal and the paging-related signal includes: The network device sends the energy-saving signal and the paging-related signal according to the timing relationship.

8. A terminal device, characterized in that: The terminal device comprises: a processing unit, configured to determine a quasi-co-location QCL relationship between a paging-related signal and an energy-saving signal, wherein the paging-related signal includes a physical downlink control channel PDCCH for scheduling a paging message and / or a physical downlink physical shared channel PDSCH for carrying the paging message, and the QCL relationship includes a QCL relationship between the paging-related signal and the energy-saving signal in at least one of the following aspects: delay spread, Doppler spread, Doppler shift, average delay, and spatial reception parameter; a transceiver unit, configured to receive the energy-saving signal based on the QCL relationship determined by the processing unit, or to receive the paging-related signal based on the QCL relationship, The processing unit is further used to: in response to each paging moment including paging-related signals sent by N beams, determine a one-to-one QCL relationship between energy-saving signals sent by N beams and paging-related signals sent by N beams, wherein the paging-related signal sent by the i-th beam and the energy-saving signal sent by the i-th beam are separated by Ti in the time domain, where i=1, 2,…, N, and T1 to TN are not equal or partially equal, and there is a QCL relationship between the paging-related signal sent by the i-th beam and the energy-saving signal sent by the i-th beam.

9. The terminal device according to claim 8, characterized in that: The processing unit is specifically used for: Acquire the QCL relationship pre-stored in the terminal device; or, The configuration information sent by the network device is received through the transceiver unit, where the configuration information is used to indicate the QCL relationship.

10. A network device, characterized in that: The network equipment includes: A processing unit, used for generating energy-saving signals and paging-related signals; a transceiver unit, configured to send the energy-saving signal and the paging-related signal generated by the processing unit, so that the terminal device receives the paging-related signal or the energy-saving signal based on a quasi-co-location QCL relationship between the paging-related signal and the energy-saving signal, wherein the paging-related signal includes a physical downlink control channel PDCCH for scheduling a paging message and / or a physical downlink physical shared channel PDSCH for carrying the paging message, and the QCL relationship includes a QCL relationship between the paging-related signal and the energy-saving signal in at least one of the following aspects: delay spread, Doppler spread, Doppler frequency shift, average delay, and spatial reception parameter, In which, in response to each paging moment including paging-related signals sent by N beams, a one-to-one QCL relationship between energy-saving signals sent by N beams and paging-related signals sent by N beams is determined, wherein the paging-related signal sent by the i-th beam and the energy-saving signal sent by the i-th beam are separated by Ti in the time domain, where i=1, 2,…, N, and T1 to TN are unequal or partially equal, and there is a QCL relationship between the paging-related signal sent by the i-th beam and the energy-saving signal sent by the i-th beam.

11. The network device according to claim 10, characterized in that: in, The QCL relationship includes a QCL relationship in terms of spatial reception parameters, and the transceiver unit (720) is specifically used for: The network device transmits the paging-related signal, and transmits the energy-saving signal associated with the paging-related signal using a transmission beam of the paging-related signal.

12. The network device according to claim 10 or 11, characterized in that: The processing unit is also used for: determining a timing relationship between the paging-related signal and the energy-saving signal; The transceiver unit is specifically used to send the energy-saving signal and the paging-related signal according to the timing relationship.

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