Signal transmission method and communication apparatus
By determining the time domain resources of the reference signal and wake-up signal in the terminal device, ensuring that the two signals are transmitted within different times, the problem of wake-up signal miss detection is solved, and the accuracy of signal detection and power consumption management are improved.
Patent Information
- Application Number
- PCT/CN2025/071437
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-01-18
- Filing Date
- 2025-01-09
- Publication Date
- 2025-07-24
AI Technical Summary
When the terminal device transmits the wake-up signal and the reference signal at the same time, it is easy to miss the wake-up signal detection, resulting in failure of the wake-up signal detection.
By determining the time domain resources of the reference signal and the wake-up signal, the terminal device receives the reference signal within the time domain resources of the reference signal and monitors the wake-up signal within the time domain resources of the wake-up signal, ensuring that the two signals are transmitted in different time domain resources and avoiding missed transmissions.
It effectively avoids missed detection of wake-up signals, improves the accuracy of signal detection and power consumption management of terminal equipment.
Smart Images

Figure CN2025071437_24072025_PF_FP_ABST
Abstract
Description
Signal transmission method and communication device
[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on January 18, 2024, with application number 202410076894.6, and priority to the Chinese patent application entitled “Method and Communication Device for Signal Transmission”, all contents of which are incorporated by reference into this application. Technical Field
[0002] The present application relates to the field of wireless communications, and more particularly, to a signal transmission method and a communication device. Background Art
[0003] The terminal device can receive the wake-up signal through a separate, low-power circuit, such as a wake-up radio (WUR), while the main circuit can be in a sleep state. When the terminal device detects the wake-up signal through the WUR, it triggers the wake-up of the main circuit. After the main circuit wakes up, the terminal device can receive other signals, such as reference signals, through the main circuit. Summary of the Invention
[0004] The present application provides a signal transmission method and a communication device, which can enable a terminal device to receive a reference signal after introducing a wake-up signal without missing the wake-up signal.
[0005] In a first aspect, a method for signal transmission is provided, which can be performed by an apparatus. The apparatus can be a device (such as a terminal device) or a component of a device (such as a chip or a chip system or a circuit), which is not limited in this application.
[0006] The method may include: determining time domain resources of a reference signal and time domain resources of a wake-up signal; receiving the reference signal within part or all of the time domain resources of the reference signal; and monitoring the wake-up signal within the time domain resources of the wake-up signal.
[0007] Based on the above technical solution, taking the terminal device as an example, considering that the terminal device may receive a wake-up signal through the wake-up circuit, and may also receive other signals (such as a reference signal) through the main circuit, the terminal device can determine the time domain resources of the reference signal and the time domain resources of the wake-up signal, so that the reference signal can be received based on the determined time domain resources of the reference signal within part or all of the time domain resources of the reference signal, and the wake-up signal can be monitored within the time domain resources of the wake-up signal based on the determined time domain resources of the wake-up signal. Based on this, the terminal device can receive the reference signal and monitor the wake-up signal within the determined time domain resources. In addition, the time domain resources of the reference signal and the time domain resources of the wake-up signal can be made different, so that the two signals (i.e., the reference signal and the wake-up signal) can be transmitted in different time domain resources, avoiding the omission of one of the signals (such as the missed detection of the wake-up signal) when the reference signal and the wake-up signal are transmitted at a certain location at the same time. Compared with the terminal device receiving the reference signal or the wake-up signal at any location, the above technical solution can avoid the terminal device from missing the wake-up signal.
[0008] In combination with the first aspect, in some implementations of the first aspect, the reference signal is a signal used for measurement, and the wake-up signal is used to wake up at least one terminal device.
[0009] In combination with the first aspect, in some implementations of the first aspect, the method further includes: sending at least one capability information, each capability information in the at least one capability information indicates whether a first type signal and a second type signal can be received simultaneously, wherein the first type signal includes the wake-up signal, the second type signal includes the reference signal, the first type signal uses on-off keying OOK modulation, and the second type signal uses non-OOK modulation.
[0010] Based on the above technical solution, the terminal device can report its own capability information, such as whether it can simultaneously receive the first type of signal and the second type of signal, or whether it can simultaneously receive the signal modulated with OOK and the signal not modulated with OOK, so that the network side (such as the network device) can perform corresponding processing according to the capabilities reported by the terminal device. For example, if the terminal device cannot simultaneously receive the first type of signal and the second type of signal, the network side can configure the corresponding reference signal time domain resources and the wake-up signal time domain resources for the terminal device, so that the time domain resources of the wake-up signal and the time domain resources of the reference signal are staggered to avoid the occurrence of missed detection signals.
[0011] In combination with the first aspect, in some implementations of the first aspect, one capability information in the at least one capability information is for a frequency band or a frequency band combination.
[0012] Based on the above technical solution, the capability information can be per band or per band combination. In this way, the terminal device can report the capability information of each band or band combination for different bands or band combinations.
[0013] In combination with the first aspect, in some implementations of the first aspect, the method further includes: receiving the first type signal through the wake-up circuit, and receiving the second type signal through the main circuit.
[0014] Based on the above technical solution, the first type signal and the second type signal can be signals received by the terminal device through different circuits. In this way, the capability information reported by the terminal device can also be whether the terminal device can receive signals through the main circuit and the wake-up circuit at the same time.
[0015] In combination with the first aspect, in some implementations of the first aspect, the method further includes: not monitoring the wake-up signal within the time domain resource of the reference signal.
[0016] Based on the above technical solution, the terminal device can monitor the wake-up signal outside the time domain resource of the reference signal. For example, the network device can configure the time domain resource of the reference signal for the terminal device, so that the network device sends the reference signal within the time domain resource of the reference signal and does not send the wake-up signal. The terminal device can monitor the wake-up signal outside the time domain resource of the reference signal. This can align the time domain resource location for measurement and the time domain resource location for monitoring the wake-up signal between the terminal device and the network device, avoiding the situation of missing the detection of the wake-up signal, and also reducing the power consumption caused by the terminal device monitoring the wake-up signal.
[0017] In combination with the first aspect, in some implementations of the first aspect, determining the time domain resource of the reference signal includes: receiving configuration information, where the configuration information includes information about the time domain resource of the reference signal.
[0018] In combination with the first aspect, in certain implementations of the first aspect, the time domain resources of the reference signal include at least one time window; or, the time domain resources of the reference signal include a first time domain resource in the at least one time window, wherein the first time domain resource is a time domain resource in which the reference signal is transmitted.
[0019] Based on the above technical solution, the terminal device can receive the reference signal within a relatively concentrated time domain resource (i.e., within at least one time window). In this way, if the terminal device receives the reference signal through the main circuit and receives the wake-up signal through the wake-up circuit, the number of times the terminal device switches between the main circuit / wake-up circuit (or sleep / wake-up) can be reduced, thereby reducing the power consumption of the terminal device.
[0020] In combination with the first aspect, in certain implementations of the first aspect, the time domain resource of the reference signal includes at least one time window, and the method further includes: not monitoring the wake-up signal within the at least one time window.
[0021] In combination with the first aspect, in certain implementations of the first aspect, the time domain resources of the reference signal include a first time domain resource in the at least one time window, and the method further includes: not monitoring the wake-up signal in the first time domain resource, and / or monitoring the wake-up signal in time domain resources other than the first time domain resource in the at least one time window.
[0022] In combination with the first aspect, in some implementations of the first aspect, the method further includes: receiving first indication information, where the first indication information indicates the at least one time window.
[0023] Optionally, the first indication information includes at least one of the following items: the starting position of the at least one time window, the starting position of a time window in the at least one time window, the ending position of the at least one time window, the ending position of a time window in the at least one time window, the length of the at least one time window, the length of a time window in the at least one time window, the time interval between two adjacent time windows in the at least one time window, or an offset; wherein the offset represents the offset between the at least one time window and the discontinuous reception CDRX in the connected state.
[0024] Optionally, the offset between the at least one time window and the discontinuous reception CDRX in the connected state includes any one of the following: the offset between the starting position of the at least one time window and the starting position of the duration OnDuration of the CDRX; the offset between the starting position of the at least one time window and the end position of the OnDuration of the CDRX; the offset between the starting position of the at least one time window and the middle position of the OnDuration of the CDRX; the offset between the starting position of any one time window in the at least one time window and the starting position of the OnDuration of the CDRX; the offset between the starting position of any one time window in the at least one time window and the end position of the OnDuration of the CDRX; or, the offset between the starting position of any one time window in the at least one time window and the middle position of the OnDuration of the CDRX.
[0025] In combination with the first aspect, in some implementations of the first aspect, the at least one time window is predefined.
[0026] Optionally, the offset between at least one time window and the CDRX is predefined. As an example, the offset includes any one of the following: the offset between the starting position of the at least one time window and the starting position of the CDRX's OnDuration; the offset between the starting position of the at least one time window and the ending position of the CDRX's OnDuration; the offset between the starting position of the at least one time window and the middle position of the CDRX's OnDuration; the offset between the starting position of any one of the at least one time window and the starting position of the CDRX's OnDuration; the offset between the starting position of any one of the at least one time window and the ending position of the CDRX's OnDuration; or the offset between the starting position of any one of the at least one time window and the middle position of the CDRX's OnDuration.
[0027] In combination with the first aspect, in some implementations of the first aspect, the time domain resources of the reference signal are different from the time domain resources of the wake-up signal; or, the time domain resources of the reference signal are resources other than the time domain resources of the wake-up signal.
[0028] Based on the above technical solution, the time domain resources used by the terminal device to receive the reference signal and the time domain resources used to receive the wake-up signal are different. This allows the terminal device to receive either the reference signal or the wake-up signal at the same time, avoiding the possibility of transmitting the wake-up signal at the same time as the reference signal, thereby missing the detection of either the wake-up signal or the reference signal. Furthermore, the terminal device can determine the time domain resources of the reference signal based on the time domain resources of the wake-up signal, i.e., the time domain resources of the reference signal are different from the time domain resources of the wake-up signal.
[0029] In combination with the first aspect, in certain implementations of the first aspect, the receiving of the reference signal within part or all of the time domain resources of the reference signal includes: receiving the reference signal within part or all of the time domain resources of the reference signal through a main circuit; and monitoring the wake-up signal within the time domain resources of the wake-up signal includes: monitoring the wake-up signal within the time domain resources of the wake-up signal through a wake-up circuit.
[0030] In combination with the first aspect, in some implementations of the first aspect, the method further includes: sending second indication information, where the second indication information indicates the time domain resource for transmitting the reference signal desired by the terminal device.
[0031] Based on the above technical solution, the terminal device can report the expected time domain resources for transmitting the reference signal to the network device, so that the network device can refer to the time domain resources expected by the terminal device in the second indication information to determine the time domain resources of the reference signal (such as the time window above), so that the configured time domain resources of the reference signal can better meet the needs of the terminal device.
[0032] With reference to the first aspect, in certain implementations of the first aspect, the time domain resources of the wake-up signal are discontinuous, or the time domain resources of the wake-up signal are periodic.
[0033] In combination with the first aspect, in some implementations of the first aspect, the modulation mode of the wake-up signal is OOK modulation, and the modulation mode of the reference signal is non-OOK modulation.
[0034] In combination with the first aspect, in certain implementations of the first aspect, the reference signal is used to perform at least one of the following: wireless link monitoring, beam failure detection, channel measurement, wireless resource management measurement, or beam measurement.
[0035] In combination with the first aspect, in certain implementations of the first aspect, the radio resource management measurement includes serving cell measurement and / or neighbor cell measurement.
[0036] In combination with the first aspect, in certain implementations of the first aspect, the neighbor cell measurement includes at least one of the following: same-frequency measurement, different-frequency measurement, or different wireless access system measurement.
[0037] In a second aspect, a method for signal transmission is provided, which can be performed by an apparatus. The apparatus can be a device (such as a network device) or a component of a device (such as a chip or chip system or circuit), which is not limited in this application.
[0038] The method may include: determining time domain resources of a reference signal and time domain resources of a wake-up signal; sending the reference signal within part or all of the time domain resources of the reference signal; and sending the wake-up signal within part or all of the time domain resources of the wake-up signal.
[0039] In combination with the second aspect, in some implementations of the second aspect, the reference signal is a signal used for measurement, and the wake-up signal is used to wake up at least one terminal device.
[0040] In combination with the second aspect, in some implementations of the second aspect, the method further includes: receiving at least one capability information, each capability information in the at least one capability information indicates whether a first type signal and a second type signal can be received simultaneously, wherein the first type signal includes the wake-up signal, the second type signal includes the reference signal, the first type signal uses on-off keying OOK modulation, and the second type signal uses non-OOK modulation.
[0041] In combination with the second aspect, in some implementations of the second aspect, one capability information in the at least one capability information is for a frequency band or a frequency band combination.
[0042] In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending the first type signal through the wake-up circuit, and sending the second type signal through the main circuit.
[0043] In combination with the second aspect, in some implementations of the second aspect, the method further includes: not sending the wake-up signal within the time domain resource of the reference signal.
[0044] In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending configuration information, where the configuration information includes information about the time domain resources of the reference signal.
[0045] In combination with the second aspect, in certain implementations of the second aspect, the time domain resources of the reference signal include at least one time window; or, the time domain resources of the reference signal include a first time domain resource in the at least one time window, wherein the first time domain resource is a time domain resource in which the reference signal is transmitted.
[0046] In combination with the second aspect, in certain implementations of the second aspect, the time domain resource of the reference signal includes at least one time window, and the method further includes: not sending the wake-up signal within the at least one time window.
[0047] In combination with the second aspect, in certain implementations of the second aspect, the time domain resources of the reference signal include a first time domain resource in the at least one time window, and the method further includes: not sending the wake-up signal in the first time domain resource, and / or sending the wake-up signal in a time domain resource other than the first time domain resource in the at least one time window.
[0048] In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending first indication information, where the first indication information indicates the at least one time window.
[0049] In combination with the second aspect, in some implementations of the second aspect, the at least one time window is predefined.
[0050] In combination with the second aspect, in certain implementations of the second aspect, the time domain resources of the reference signal are different from the time domain resources of the wake-up signal; or, the time domain resources of the reference signal are resources other than the time domain resources of the wake-up signal.
[0051] In combination with the second aspect, in certain implementations of the second aspect, the sending of the reference signal within part or all of the time domain resources in the time domain resources of the reference signal includes: sending the reference signal within part or all of the time domain resources in the time domain resources of the reference signal through the main circuit; the sending of the wake-up signal within part or all of the time domain resources in the time domain resources of the wake-up signal includes: generating the wake-up signal within part or all of the time domain resources in the time domain resources of the wake-up signal through the wake-up circuit.
[0052] In combination with the second aspect, in some implementations of the second aspect, the method further includes: receiving second indication information, where the second indication information indicates a time domain resource for transmitting a reference signal desired by the terminal device.
[0053] In combination with the second aspect, in some implementations of the second aspect, the time domain resources of the wake-up signal are discontinuous, or the time domain resources of the wake-up signal are periodic.
[0054] In combination with the second aspect, in some implementations of the second aspect, the modulation mode of the wake-up signal is OOK modulation, and the modulation mode of the reference signal is non-OOK modulation.
[0055] In combination with the second aspect, in certain implementations of the second aspect, the reference signal is used to perform at least one of the following: wireless link monitoring, beam failure detection, channel measurement, wireless resource management measurement, or beam measurement.
[0056] In combination with the second aspect, in certain implementations of the second aspect, the radio resource management measurement includes serving cell measurement and / or neighbor cell measurement.
[0057] In combination with the second aspect, in certain implementations of the second aspect, the neighbor cell measurement includes at least one of the following: same-frequency measurement, different-frequency measurement, or different wireless access system measurement.
[0058] In a third aspect, a communication method is provided, which can be performed by an apparatus. The apparatus can be a device (such as a terminal device) or a component of a device (such as a chip or chip system or circuit), which is not limited in this application.
[0059] The method may include: sending at least one capability information, each capability information in the at least one capability information indicates whether a first type signal and a second type signal can be received simultaneously, the first type signal adopts on-off keying OOK modulation, and the second type signal adopts non-OOK modulation.
[0060] In combination with the third aspect, in some implementations of the third aspect, one capability information in the at least one capability information is for a frequency band or a frequency band combination.
[0061] In combination with the third aspect, in some implementations of the third aspect, the method further includes: receiving the first type signal through the wake-up circuit, and receiving the second type signal through the main circuit.
[0062] In combination with the third aspect, in certain implementations of the third aspect, the first type of signal includes: a wake-up signal and / or a low-power synchronization signal; the second type of signal includes a signal other than the wake-up signal and / or the low-power synchronization signal.
[0063] In a fourth aspect, a communication method is provided, which can be performed by an apparatus. The apparatus can be a device (such as a network device) or a component of a device (such as a chip or a chip system or a circuit), which is not limited in this application.
[0064] The method may include: receiving at least one capability information, each capability information in the at least one capability information indicates whether a first type signal and a second type signal can be received simultaneously, the first type signal adopts on-off keying OOK modulation, and the second type signal adopts non-OOK modulation.
[0065] In combination with the fourth aspect, in some implementations of the fourth aspect, one capability information in the at least one capability information is for a frequency band or a frequency band combination.
[0066] In combination with the fourth aspect, in some implementations of the fourth aspect, the method further includes: sending the first type signal through the wake-up circuit, and sending the second type signal through the main circuit.
[0067] In combination with the fourth aspect, in certain implementations of the fourth aspect, the first type of signal includes: a wake-up signal and / or a low-power synchronization signal; the second type of signal includes a signal other than the wake-up signal and / or the low-power synchronization signal.
[0068] The second to fourth aspects and their possible designs and beneficial effects can refer to the relevant description of the first aspect and will not be repeated here.
[0069] In a fifth aspect, a communication device is provided, the device being configured to execute the method of any possible implementation of the first to fourth aspects. Specifically, the device may include units and / or modules, such as a processing unit and / or a communication unit, for executing the method of any possible implementation of the first to fourth aspects.
[0070] In one implementation, the apparatus is a communication device (e.g., a terminal device or a network device). When the apparatus is a terminal device, the communication unit may be a transceiver or an input / output interface; the processing unit may be at least one processor. Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input / output interface may be an input / output circuit.
[0071] In another implementation, the device is a chip, chip system, or circuit for a communication device (e.g., a terminal device or a network device). When the device is a chip, chip system, or circuit for a terminal device, the communication unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip, chip system, or circuit; and the processing unit may be at least one processor, processing circuit, or logic circuit.
[0072] In a sixth aspect, a communication device is provided, comprising: at least one processor configured to execute a computer program or instructions stored in a memory to perform the method of any possible implementation of aspects 1 to 4. Optionally, the device further comprises a memory configured to store the computer program or instructions. Optionally, the device further comprises a communication interface, through which the processor reads the computer program or instructions in the memory.
[0073] In one implementation, the device is a communication device (such as a terminal device or a network device).
[0074] In another implementation, the device is a chip, a chip system, or a circuit used in a communication device (such as a terminal device or a network device).
[0075] In a seventh aspect, a processor is provided for executing the methods provided in the first to fourth aspects above.
[0076] For the operations such as sending and acquiring / receiving involved in the processor, unless otherwise specified, or if they do not conflict with their actual functions or internal logic in the relevant descriptions, they can be understood as processor output, reception, input and other operations, and can also be understood as sending and receiving operations performed by the radio frequency circuit and antenna. This application does not limit this.
[0077] Optionally, the device further includes: a memory for storing programs; accordingly, at least one processor is used to execute computer programs or instructions in the memory.
[0078] Optionally, the device further includes a communication interface, which is coupled to the processor and can be used to input information to the processor or output information from the processor.
[0079] In an eighth aspect, a computer-readable storage medium is provided, which stores a program code for execution by a device, wherein the program code includes a method for executing any possible implementation of the first to fourth aspects above.
[0080] In a ninth aspect, a computer program product comprising instructions is provided, which, when run on a computer, enables the computer to execute the method in any possible implementation of the first to fourth aspects above.
[0081] In the tenth aspect, a chip is provided, which includes a processor and a communication interface. The processor reads instructions on the memory through the communication interface and executes the method provided by any of the above-mentioned implementation methods of any of the above-mentioned first to fourth aspects.
[0082] Optionally, as an implementation method, the chip also includes a memory, in which a computer program or instruction is stored, and the processor is used to execute the computer program or instruction on the memory. When the computer program or instruction is executed, the processor is used to execute the method provided in any one of the above implementation methods of any one of the first to fourth aspects.
[0083] In an eleventh aspect, a computer program product comprising instructions is provided, which, when run on a computer, enables the computer to execute the method provided by any one of the above-mentioned implementations of the first aspect.
[0084] In a twelfth aspect, a communication system is provided, comprising the aforementioned terminal device and network device. BRIEF DESCRIPTION OF THE DRAWINGS
[0085] FIG1 is a schematic diagram of a wireless communication system applicable to an embodiment of the present application.
[0086] FIG2 is a schematic diagram of the main circuit and the wake-up circuit.
[0087] FIG3 is a schematic diagram of the connection between the wake-up circuit and the main circuit and the antenna.
[0088] FIG4 is a schematic diagram of a signal transmission method 400 provided in an embodiment of the present application.
[0089] FIG5 is a schematic diagram of Scheme 1 applicable to an embodiment of the present application.
[0090] FIG6 is a schematic diagram of Solution 2 applicable to an embodiment of the present application.
[0091] FIG7 is another schematic diagram of Solution 2 applicable to an embodiment of the present application.
[0092] FIG8 is a schematic diagram of Scheme 3 applicable to an embodiment of the present application.
[0093] FIG9 is a schematic block diagram of a communication device 900 provided in an embodiment of the present application.
[0094] FIG10 is a schematic diagram of another communication device 1000 provided in an embodiment of the present application.
[0095] FIG11 is a schematic diagram of a chip system 1100 provided in accordance with an embodiment of the present application. DETAILED DESCRIPTION
[0096] The technical solution in this application will be described below with reference to the accompanying drawings.
[0097] The technical solutions provided in this application can be applied to various communication systems, such as: fifth generation (5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems, such as sixth generation (6G) mobile communication systems. The technical solutions provided in this application can also be applied to device to device (D2D) communication, vehicle to everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and Internet of Things (IoT) communication systems. The technical solutions provided in this application can also be applied to non-terrestrial network (NTN) systems such as intersatellite communication and satellite communication.
[0098] As an example, a satellite communication system includes a satellite base station and terminal devices. The satellite base station provides communication services to the terminal devices. The satellite base station can also communicate with other base stations. Satellites can function as both base stations and terminal devices. Satellites can refer to drones, hot air balloons, low-orbit satellites, medium-orbit satellites, high-orbit satellites, and other satellites. Satellites can also refer to non-ground base stations or non-ground devices.
[0099] As an example, V2X communication may include vehicle-to-vehicle (V2V) communication, vehicle-to-roadside infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, and vehicle-to-network (V2N) communication.
[0100] A device in a communication system can send signals to or receive signals from another device. The signals may include information, signaling, or data. The term "device" may also be replaced by an entity, network entity, communication device, communication module, node, communication node, etc. This disclosure uses devices as an example for description.
[0101] The terminal devices in the embodiments of the present application include various devices with wireless communication functions, which can be used to connect people, objects, machines, etc. The terminal devices can be widely used in various scenarios, such as: cellular communication, D2D, V2X, peer to peer (P2P), M2M, MTC, IoT, virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city drones, robots, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery, etc. The terminal device can be a terminal in any of the above scenarios, such as an MTC terminal, an IoT terminal, etc. The terminal device may be a user equipment (UE) of the third generation partnership project (3GPP) standard, a terminal, a fixed device, a mobile station device or a mobile device, a subscriber unit, a handheld device, a vehicle-mounted device, a wearable device, a cellular phone, a smart phone, a SIP phone, a wireless data card, a personal digital assistant (PDA), a computer, a tablet computer, a notebook computer, a wireless modem, a handheld device, a laptop computer, a computer with wireless transceiver function, a smart book, a vehicle, a satellite, a global positioning system (GPS) device, a target tracking device, an aircraft (such as a drone, a helicopter, or an airplane), a ship, a remote control device, a smart home device, an industrial device, or a device built into the above-mentioned device (such as a communication module, a modem or a chip in the above-mentioned device), or other processing devices connected to a wireless modem. For the sake of convenience of description, the terminal device will be described below by taking the terminal or UE as an example.
[0102] It should be understood that in some scenarios, a UE can also be used to act as a base station. For example, a UE can act as a scheduling entity that provides sidelink signals between UEs in scenarios such as V2X, D2D, or P2P.
[0103] In the embodiments of the present application, the device for implementing the function of the terminal device, i.e., the terminal device, can be the terminal device, or a device capable of supporting the terminal device to implement the function, such as a chip system or chip, which can be installed in the terminal device. 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.
[0104] The network device in the embodiments of the present application may be a device for communicating with a terminal device, and may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. Base station can broadly cover various names as follows, or replace the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point, master station, auxiliary station, multi-standard wireless (motor slide retainer, MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station can also refer to a communication module, modem or chip used to be set in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs base station functions in D2D, V2X, and M2M communications, a network-side device in a 6G network, or a device that performs base station functions in future communication systems. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the network equipment.
[0105] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.
[0106] In some deployments, the network device mentioned in the embodiments of the present application may be a device including a CU, or a DU, or a device including a CU and a DU, or a control plane CU node (central unit control plane (central unit-control plane, CU-CP)) and a user plane CU node (central unit user plane (central unit-user plane, CU-UP)) and a DU node.
[0107] In some deployments, multiple RAN nodes collaborate to assist terminals in achieving wireless access, with different RAN nodes implementing portions of the base station's functionality. For example, a RAN node can be a CU, DU, CU-CP, CU-UP, or radio unit (RU). The CU and DU can be separate or included in the same network element, such as the BBU. The RU can be included in a radio frequency device or radio unit, such as an RRU, AAU, or RRH.
[0108] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, the radio access network may also be an open radio access network (O-RAN) architecture. In the ORAN system, CU may also be called an open CU (open CU, O-CU), DU may also be called an open DU (open DU, O-DU), CU-CP may also be called an open (open CU-CP, O-CU-CP), CU-UP may also be called an open (open CU-UP, O-CU-UP), and RU may also be called an open RU (open RU, O-RU). Any unit of CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.
[0109] In the embodiments of the present application, the apparatus for implementing the function of the network device can be the network device, or it can be an apparatus capable of supporting the network device to implement the function, such as a chip system or chip, which can be installed in the network device. In the embodiments of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices.
[0110] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.
[0111] First, a communication system applicable to an embodiment of the present application is briefly introduced with reference to FIG1 as follows.
[0112] Referring to Figure 1, as an example, Figure 1 is a schematic diagram of a wireless communication system applicable to an embodiment of the present application. As shown in Figure 1, the wireless communication system includes a wireless access network 100. The wireless access network 100 can be a next-generation (e.g., 6G or higher) wireless access network, or a traditional (e.g., 5G, 4G, 3G, or 2G) wireless access network. One or more terminal devices (120a-120j, collectively referred to as 120) can be connected to each other or to one or more network devices (110a, 110b, collectively referred to as 110) in the wireless access network 100. Network elements in the wireless communication system are connected through interfaces (e.g., NG, Xn) or air interfaces.
[0113] When a network device communicates with a terminal device, the network device can manage one or more cells, and a cell can include at least one terminal device. A cell can be understood as an area within the wireless signal coverage range of the network device.
[0114] FIG1 is only a schematic diagram. The wireless communication system may further include other devices, such as core network devices, wireless relay devices and / or wireless backhaul devices, which are not shown in FIG1 .
[0115] To facilitate understanding of the embodiments of the present application, a brief explanation of the terms involved in the present application is given.
[0116] 1. Wake-up circuit: also known as wake-up receiver / radio (WUR) or low-power wake-up receiver (LP-WUR) or wake-up module, can be understood as a separate low-power small circuit, such as the circuit used by the terminal device in the idle state. The low-power small circuit can be implemented using a separate small circuit or chip with a simple structure, and its power consumption is low. It can be understood that the wake-up circuit is only a name for distinction, and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, the wake-up circuit can also be described as the first circuit (or first module). The following is uniformly described as a wake-up circuit.
[0117] The signal received by the terminal device through the wake-up circuit can be said to be transmitted on the wake-up link. The wake-up link represents a connection relationship between the terminal device and the network device. It is a logical concept, not a physical entity. It is understood that the wake-up link is only a name used for differentiation and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, the wake-up link can also be described as the first link. It is uniformly described below as the wake-up link.
[0118] For purposes of distinction, as an example, a signal received by a terminal device via a wake-up circuit may be referred to as a Type 1 signal. It should be understood that the term "Type 1 signal" is merely a name used for differentiation and does not limit the scope of protection of this application. For example, without loss of generality, a Type 1 signal may also be referred to as a signal. This term is uniformly referred to below as a Type 1 signal.
[0119] As an example, the first type of signal includes a wake-up signal (WUS) and / or a synchronization signal.
[0120] Among them, the wake-up signal can be used to wake up at least one terminal device. Waking up the terminal device means waking up the main circuit of the terminal device. As an example, the wake-up signal is used to indicate information related to paging, and the paging-related information may include, for example, whether a terminal device or a group of terminal devices is paged. The wake-up signal may also be called a low power wake-up signal (LP-WUS), and its specific naming does not limit the scope of protection of this application.
[0121] The synchronization signal can be used to implement synchronization functions and can also be used to implement some measurement functions performed by waking up the circuit, such as radio resource management (RRM) measurements. The synchronization signal is also called a low-power synchronization signal (LP-SS).
[0122] 2. Main circuit: Also known as the main receiver (MR) or main module, it can be understood as the circuit used by the terminal device when transmitting data normally, or the circuit used by the terminal device when transmitting data in a connected state. When the terminal device transmits data through the main circuit, it consumes a lot of power. It can be understood that the main circuit is only a name for distinction, and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, the main circuit can also be described as the second circuit (or second module). The following unified description is the main circuit.
[0123] Signals received by a terminal device via the primary circuit can be said to be transmitted on the primary link. The primary link represents a connection between the terminal device and the network device and is a logical concept, not a physical entity. It should be understood that the primary link is a name used for differentiation purposes only and does not limit the scope of protection of this application. For example, without loss of generality, the primary link can also be described as a secondary link. The following description will uniformly refer to the primary link.
[0124] Hereinafter, for the purpose of distinction, the signal received by the terminal device through the main circuit is recorded as the second type signal.
[0125] Refer to FIG2 , which is a schematic diagram of a main circuit and a wake-up circuit as an example.
[0126] As shown in Figure 2, the terminal device can receive (or detect, or monitor) a first type of signal (such as a wake-up signal) through a wake-up circuit, and the terminal device can receive a second type of signal through a main circuit. Assume that the terminal device receives a wake-up signal through a wake-up circuit. If the terminal device does not detect a wake-up signal, it continues to receive a wake-up signal through the wake-up circuit, and the main circuit can be in a closed state (or a sleep state); if the terminal device detects a wake-up signal, it triggers the wake-up of the main circuit, that is, the main circuit is in / switched to an open state (or a working state, or an active state). After the main circuit is turned on, the terminal device can transmit the second type of signal through the main circuit.
[0127] 3. Relationship between the wake-up circuit and the main circuit: Considering size and cost, the wake-up circuit and the main circuit can reuse the same antenna (or physical antenna).
[0128] The following describes two possible ways of connecting the wake-up circuit and the main circuit to the antenna with reference to FIG3 .
[0129] In mode 1, the antenna is connected to the wake-up circuit and the main circuit respectively. In this case, the wake-up circuit and the main circuit may receive signals at the same time.
[0130] As an example, Figure 3 shows the connection between the wake-up circuit, the main circuit, and the antenna. As shown in Figure 3 (a), the antenna is connected to the wake-up circuit (denoted by LR in Figure 3) and the main circuit (denoted by MR in Figure 3). The signal power received by the antenna is split, resulting in attenuation of the signal power in the wake-up circuit and the main circuit, for example, by 3dB.
[0131] In method 2, the antenna is connected to the wake-up circuit or the main circuit via a switch. In this case, the wake-up circuit and the main circuit may or may not receive signals simultaneously. As shown in Figure 3 (b) or (c), the antenna can be connected to the wake-up circuit or the main circuit via a switch. In this case, the signal power received by the antenna will also be attenuated due to the introduction of the switch, but the attenuation is less than that of a branch circuit. In Figure 3 (b), because the switch is connected to either the wake-up circuit or the main circuit, the wake-up circuit and the main circuit will not receive signals simultaneously. Furthermore, considering that the wake-up circuit and the main circuit may be related to the operating frequency, when using method 2, if the wake-up circuit and the main circuit operate at different frequencies, the wake-up circuit and the main circuit may receive signals simultaneously. As shown in Figure 3 (c), if the wake-up circuit operates in band 1 and the main circuit operates in band 2, and the terminal device uses different antennas to receive signals in band 1 and band 2, then even if the switch is used, the wake-up circuit and the main circuit may still receive signals simultaneously.
[0132] As can be seen from the above, depending on the hardware structure of the terminal device, the wake-up circuit and the main circuit may receive signals at the same time or may not receive signals at the same time.
[0133] 4. Reference Signal (RS) and Reference Signal Resources: Reference signals can be used for channel measurement, beamforming, and channel estimation. Reference signal resources can be used to configure reference signal transmission properties, such as time-frequency resource location, port mapping, power factor, and scrambling code. Transmitting devices can send reference signals based on reference signal resources, and receiving devices can receive reference signals based on reference signal resources.
[0134] 5. Time Domain Resources: Data or information can be carried by resources. In the time domain, resources are called time domain resources. Time domain resources can include one or more time domain units (or, time units). A time domain unit can be a symbol, an orthogonal frequency division multiplexing (OFDM) symbol, a mini-slot, a time slot, a partial slot, a subframe, or a radio frame, etc.
[0135] 6. Measurement: A terminal device can perform various measurements in a connected state. Specifically, it can perform measurements based on reference signals. The following briefly introduces several types of measurements.
[0136] 1) Radio link monitoring (RLM) and beam failure detection (BFD)
[0137] The processes for RLM and BFD on a terminal device are similar. The following uses RLM as an example to describe the possible steps.
[0138] Step 1: The terminal device receives a reference signal. As an example, the reference signal may be a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).
[0139] The resources used for RLM can be configured UE specific through the RLM configuration (radioLinkMonitoringConfig) in the bandwidth part (BWP)-downlink dedicated (BWP-DownlinkDedicated). In addition to the resources used for RLM, the network side also configures other resources through radioLinkMonitoringConfig, such as resources used for BFD. For example, there are N LR-RLM Reference signal resources, as an example, where at most N RLM 1 for RLM and up to 2 for BFD. The resources used by RLM and BFD can be the same or different. LR-RLM and N RLM The value of is related to the maximum number of reference signals (such as SSB).
[0140] In addition, if the terminal device is not configured with a reference signal (RadioLinkMonitoringRS) for RLM, but the transmission configuration indication (TCI) state (TCI state) of the physical downlink control channel (PDCCH) contains one or more CSI-RS, then the terminal device can use these CSI-RS for RLM. The specific CSI-RS used for RLM can be all or part of them in a specific order agreed upon by the protocol, and there is no limitation on this.
[0141] In step 2, the terminal device calculates the quality (or radio link quality) based on each reference signal.
[0142] As an example, the measurement indicator (metric) (or measurement quantity) includes at least one of the following: reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), or signal-noise ratio (SNR).
[0143] When the terminal device calculates the quality, it can be calculated within a certain period of time (such as the evaluation period). In order to achieve a better filtering effect, multiple sampling points (samples) are usually used (the specific number of samples used depends on the implementation of the terminal device). If the reference signal is SSB, this period includes T Evaluate_out_SSB and T Evaluate_in_SSB ; If the reference signal is CSI-RS, this period includes T Evaluate_out_CSI-RS and T Evaluate_in_CSI-RS .
[0144] Step 3: The terminal device compares the quality calculated based on each reference signal with the corresponding threshold (such as Q out and Q in ) for comparison. Different reference signals may have their own corresponding thresholds. For example, for a terminal device, there may be Q out_SSB , Q in_SSB , Q out_CSI-RS , Q in_CSI-RS Four parameters, Q out_SSB For use with T Evaluate_out_SSB The quality of the reference signal within the time period is compared, Q in_SSB For use with T Evaluate_in_SSB The quality of the reference signal within the time period is compared, Q out_CSI-RS For use with T Evaluate_out_CSI-RS The quality of the reference signal within the time period is compared, Q in_CSI-RS For use with T Evaluate_in_CSI-RS The calculated quality of the reference signal within the time period is compared.
[0145] Step 4: Based on the comparison result, the physical layer in the terminal device indicates out of sync (OOS) or in sync (IS) to the radio resource control (RRC) layer. Specifically, if the quality of all reference signals is lower than the threshold (Q out ), then OOS is indicated; if the quality of at least one reference signal is higher than Q in , then indicate IS; in other cases, no indication is sent.
[0146] The above steps are for illustrative purposes only and are not limited to the embodiments of the present application.
[0147] 2) Channel state information (CSI) measurement
[0148] As an example, CSI measurement includes the following steps:
[0149] Step 1: The terminal device receives a reference signal.
[0150] In step 2, the terminal device measures the reference signal. The measurement period requirements vary depending on the situation (e.g., intra-frequency or inter-frequency, frequency range, or discontinuous reception (DRX) cycle length). The protocol does not yet specify where measurements are performed within a cycle.
[0151] Step 3: The terminal device reports the measurement result. Typically, the terminal device can report a CSI report via a physical uplink control channel (PUCCH).
[0152] 3) RRM measurement
[0153] As an example, RRM measurements (or also referred to as cell measurements) include serving cell measurements and neighbor cell measurements. As an example, neighbor cell measurements include at least one of the following: intra-frequency measurements, inter-frequency measurements, and inter-radio access technology (inter-RAT) measurements.
[0154] Similarly, RRM measurement includes the following steps: the terminal device receives a reference signal; the terminal device measures the reference signal; and the terminal device reports the measurement result.
[0155] The above briefly introduces some measurements, mainly those performed when the terminal device is in a connected state. Different measurements may have different requirements, such as different measurement periods.
[0156] In connected state, terminal devices typically receive more traffic than in idle state. Therefore, the terminal device's main circuit is activated more frequently to send and receive data. To reduce the complexity of protocol design, one possible implementation involves using the main circuit to perform some connected state measurements, including but not limited to RLM, BFD, CSI measurements, or RRM measurements.
[0157] However, as mentioned above, the wake-up circuit and main circuit of the terminal device may not receive signals at the same time. Therefore, the terminal device cannot simultaneously use the wake-up circuit to receive the wake-up signal and use the main circuit to perform measurements (or use the main circuit to receive the reference signal for measurement). This may cause the network to send the wake-up signal at the time domain where the terminal device is performing measurements, and the terminal device may miss the wake-up signal.
[0158] In light of this, this application proposes a solution that configures or defines a time domain location for measurement. Specifically, the terminal device performs measurements at this time domain location, and the network device does not send a wake-up signal at this time domain location. In this way, the terminal device and the network device can align the time domain location where the terminal device performs measurements using the main circuit, avoiding missed detection of the wake-up signal.
[0159] Before introducing the solution of this application, the following points are explained.
[0160] (1) In this application, “indication” may include direct indication, indirect indication, explicit indication, and implicit indication. When describing that a certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.
[0161] In this application, the information indicated by the indication information is referred to as the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each information agreed in advance (for example, stipulated by the protocol), thereby reducing the indication overhead to a certain extent. In addition, the information to be indicated can be sent together as a whole, or it can be divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different.
[0162] (2) In this application, the expression “ / ” is used to indicate that the objects associated with each other are in an “or” relationship; for example, A / B can mean: A or B. The expression “and / or” is used to indicate that the objects associated with each other can be in an and relationship or an or relationship; for example, A and / or B can mean the following situations: A exists alone, B exists alone, and A and B exist at the same time, where A and B can be single or multiple. “At least one of the following” or similar expressions is used to indicate any combination of the listed items; for example, at least one of A, B and / or C can mean the following situations: A exists alone, B exists alone, C exists alone, A and B exist at the same time, B and C exist at the same time, A and C exist at the same time, and A, B and C exist at the same time, where A, B and C can be single or multiple.
[0163] (3) In this application, "sending" and "receiving" refer to the direction of signal transmission. For example, "sending information to XX" can be understood as the destination of the information being XX, which can include direct sending through the air interface, and also include indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as the source of the information being YY, which can include direct receiving from YY through the air interface, and also include indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, sending and receiving can be carried out between devices, for example, between a network device and a terminal device, or can be carried out within a device, for example, sending or receiving between components, modules, chips, software modules or hardware modules within the device through a bus, a line or an interface.
[0164] (4) In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.
[0165] (5) In this application, the terms "first" and "second" are used for convenience of description only and are not intended to limit the scope of the embodiments of this application. They are not used to describe the order or precedence of features. It should be understood that the terms described in this manner may be interchangeable, where appropriate, to describe solutions other than the embodiments of this application.
[0166] The following will describe in detail the method provided by the embodiment of the present application in conjunction with the accompanying drawings. The embodiment provided by the present application can be applied to the scenarios shown in the above figures without limitation.
[0167] Referring to Figure 4, as an example, Figure 4 is a schematic diagram of a signal transmission method 400 provided in an embodiment of the present application. For the convenience of description below, an exemplary explanation is given by taking the execution subject of method 400 as a terminal device as an example. It can be understood that the execution subject of method 400 can also be a component of the terminal device, such as a chip or a chip system or a circuit, without limitation. The steps described below as being performed by a single execution subject can also be divided into steps performed by multiple execution subjects, and these execution subjects can be logically and / or physically separated. The method 400 shown in Figure 4 may include the following steps.
[0168] The method 400 includes step 420 and step 430. Optionally, the method 400 includes step 410.
[0169] 410. The terminal device determines a time domain resource of a reference signal and a time domain resource of a wake-up signal.
[0170] As an example, the reference signal is used for measurement. Specifically, the terminal device can perform measurements based on the reference signal, that is, the terminal device performs measurements through the main circuit based on the reference signal. As an example, the measurement includes at least one of the following: RLM, BFD, channel measurement (such as CSI measurement), RRM measurement (or also referred to as cell measurement), or beam measurement, etc. For the above-mentioned measurements, please refer to the relevant description in the previous term explanation section. In addition, the embodiments of the present application do not limit the specific method of measurement.
[0171] The time domain resource of the reference signal refers to the time domain resource that can receive the reference signal, or the time domain resource that can be measured.
[0172] The step of determining the time domain resources for the reference signal may be replaced by determining the time domain resources for not monitoring the wake-up signal.
[0173] As an example, the wake-up signal includes a signal for waking up at least one terminal device. For details about the wake-up signal, reference may be made to the above related description.
[0174] The step of determining the time domain resource for the wake-up signal may be replaced by determining the time domain resource for monitoring the wake-up signal.
[0175] As an example, the modulation method of the wake-up signal is OOK modulation; the modulation method of the reference signal is non-OOK modulation, such as the modulation method of the reference signal is orthogonal frequency division multiplexing (OFDM) modulation or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) modulation.
[0176] Among them, the modulation mode of the wake-up signal is OOK modulation, which can also be alternatively described as: in the time interval corresponding to the wake-up signal, some time domain positions have energy, and some time domain positions have no energy; or the energy of some time domain positions is higher than the first threshold, and the energy of some time domain positions is lower than the second threshold, and the first threshold is greater than or equal to the second threshold; or, the wake-up signal includes X OOK symbols, the X OOK symbols include X1 first symbols and X2 second symbols, the signal amplitude of the first symbol is greater than or equal to the first threshold, and the signal amplitude of the second symbol is less than or equal to the second threshold, wherein X is an integer greater than 0, X1 and X2 are integers greater than or equal to 0, and X1+X2=X. The signal amplitude of the first symbol is greater than or equal to the first threshold, and the signal amplitude of the second symbol is less than or equal to the second threshold, which can be replaced by any of the following: the signal amplitude of the first symbol is greater than the signal amplitude of the second symbol; the signal amplitude of the first symbol is greater than the signal amplitude of the second symbol within a preset time period; the signal power of the first symbol is greater than the signal power of the second symbol; the signal power of the first symbol is greater than the signal power of the second symbol within a preset time period; the signal power of the first symbol is greater than the signal power of the second symbol; the signal power of the first symbol is greater than or equal to the first threshold, and the signal power of the second symbol is less than or equal to the second threshold; the signal power of the first symbol is greater than or equal to the first threshold, and the signal power of the second symbol is less than or equal to the second threshold within a preset time period; the signal level value of the first symbol is greater than the signal level value of the second symbol; the signal level value of the first symbol is greater than the signal level value of the second symbol within a preset time period; the signal level value of the first symbol is greater than or equal to the first threshold, and the signal level value of the second symbol is less than or equal to the second threshold; the signal level value of the first symbol is greater than or equal to the first threshold, and the signal level value of the second symbol is less than or equal to the second threshold within a preset time period; or the first symbol indicates (or corresponds to, or represents) a first bit value, and the second symbol indicates (or corresponds to, or represents) a second bit value. The first bit value and the second bit value are different. In one example, the first bit value is "1" and the second bit value is "0." In another example, the first bit value is "0" and the second bit value is "1."
[0177] 420. The terminal device receives the reference signal in part or all of the time domain resources of the reference signal.
[0178] The terminal device may be a terminal device in a connected state.
[0179] The time domain resources of the reference signal in step 410 are time domain resources that the terminal device can (or is capable of) using to receive the reference signal. In actual communication, the terminal device may receive the reference signal within part of the time domain resources of the reference signal; or, the terminal device may also receive the reference signal within all of the time domain resources of the reference signal.
[0180] For example, the time domain resource of the reference signal includes N time domain units, where N is an integer greater than 1, and the terminal device receives the reference signal in N1 time domain units of the N time domain units, where N1 is an integer greater than or equal to 0, and N1 is less than or equal to N. It can be understood that when N1=0, it means that the terminal device does not receive the reference signal in the time domain resource of the reference signal.
[0181] 430. The terminal device monitors the wake-up signal within the time domain resource of the wake-up signal.
[0182] Optionally, the terminal device includes a first module and a second module, and the terminal device monitors the wake-up signal through (or uses) the first module and receives the reference signal through (or uses) the second module. Specifically, in step 420, the terminal device receives the reference signal within part or all of the time domain resources of the reference signal through the second module; in step 430, the terminal device monitors the wake-up signal within the time domain resources of the wake-up signal through the first module.
[0183] As an example, the power consumption of the first module can be less than that of the second module. The first module can be, for example, the wake-up circuit in Figure 2, or a receiving module of the wake-up circuit; the second module can be, for example, the main circuit in Figure 2, or a receiving module of the main circuit. For details about the main circuit and the wake-up circuit, refer to the previous description. The following description uses the main circuit and the wake-up circuit as an example.
[0184] The following describes relevant solutions for the time domain resources of the reference signal and the time domain resources of the wake-up signal. As an example, the time domain resources of the reference signal and the time domain resources of the wake-up signal include the following three solutions.
[0185] Solution 1, the network device configures the time domain resources of the reference signal. Within the time domain resources of the reference signal, the terminal device does not monitor the wake-up signal. Accordingly, the network device does not send the wake-up signal within the time domain resources of the reference signal. Based on this, the time domain resources of the reference signal in step 410 are the time domain resources of the reference signal configured by the network device. The time domain resources of the reference signal configured by the network device means that the network device sends the reference signal within the time domain resources of the configured reference signal. It should be noted that, for the terminal device, whether the reference signal is received within the configured time domain resources depends on the implementation of the terminal device, such as the measurement requirements of the terminal device. For example, the terminal device may receive the reference signal within all the time domain resources of the reference signal; for another example, the terminal device may receive the reference signal within part of the time domain resources of the reference signal.
[0186] Through this solution, the network device can configure the time domain resources of the reference signal for measurement to the terminal device, so that the network device sends the reference signal within the time domain resources of the reference signal and does not send the wake-up signal. The terminal device can monitor the wake-up signal without the time domain resources of the reference signal. This allows the terminal device and the network device to align the time domain resource positions for measurement, avoiding the situation of missing the wake-up signal, and also reducing the power consumption caused by the terminal device monitoring the wake-up signal.
[0187] Refer to Figure 5, as an example, Figure 5 is a schematic diagram of Scheme 1 applicable to an embodiment of the present application. As shown in Figure 5, the network device configures a time domain resource of a reference signal that can be used for measurement for the terminal device (that is, the time domain resource of the reference signal in step 410). For simplicity, the time domain resource is referred to as time domain resource #1. The network device does not send a wake-up signal in the time domain resource #1, and the terminal device does not monitor the wake-up signal in the process of monitoring the wake-up signal in the time domain resource #1. Specifically, it can be assumed that the terminal device may perform measurements at the position of time domain resource #1. Therefore, at the position of time domain resource #1, the network device does not send a wake-up signal, and the terminal device does not monitor the wake-up signal. However, it can be seen from Figure 5 that, as an example, the terminal device actually receives the reference signal for measurement on part of the time domain resources of the time domain resource #1, such as the time domain resources actually measured in Figure 5 (that is, part of the time domain resources of the reference signal in step 420).
[0188] The “time domain resources originally used to monitor the wake-up signal” shown in FIG. 5 include at least the following two situations.
[0189] In one possible scenario, the "time domain resources originally used to monitor the wake-up signal" shown in Figure 5 are all time domain resources used to monitor the wake-up signal. For example, the terminal device continuously monitors the wake-up signal within the time domain resources originally used to monitor the wake-up signal shown in Figure 5. Based on Solution 1, the terminal device stops monitoring the wake-up signal (or no longer monitors the wake-up signal) within time domain resource #1 and can continue monitoring the wake-up signal within the remaining time domain resources.
[0190] In another possible scenario, the “time domain resources originally used to monitor the wake-up signal” shown in FIG5 is part of the time domain resources among all the time domain resources used to monitor the wake-up signal. For example, the terminal device performs duty cycle monitoring of the wake-up signal in the time domain resources originally used to monitor the wake-up signal shown in FIG5 . For another example, the network device configures multiple time domain resources for the wake-up signal, and the multiple time domain resources include the “time domain resources originally used to monitor the wake-up signal” shown in FIG5 . Based on solution 1, the terminal device stops monitoring the wake-up signal (or no longer monitors the wake-up signal) in time domain resource #1, and can continue to monitor the wake-up signal in the remaining time domain resources.
[0191] Based on Solution 1, further optionally, method 400 also includes: the terminal device receives configuration information, where the configuration information includes information about time domain resources of the reference signal.
[0192] As an example, the configuration information may be carried in radio resource control (RRC) signaling.
[0193] As an example, the information of the time domain resource of the reference signal includes at least one of the following information: the starting position of the reference signal in the time domain, the ending position of the reference signal in the time domain, the time domain length of the reference signal in the time domain (such as the number of time domain units occupied by the reference signal), or the index of the time domain unit occupied by the reference signal.
[0194] Solution 2: configure or define at least one time domain resource, in which the terminal device receives the reference signal and does not monitor the wake-up signal. Based on this, the time domain resource of the reference signal in step 410 is the at least one time domain resource.
[0195] Through this solution, the terminal device can perform measurements within a relatively concentrated time domain resource, reducing the number of main circuit / wake-up circuit (or sleep / wake-up) switching of the terminal device, thereby reducing the power consumption of the terminal device.
[0196] The at least one time domain resource may be in the form of a time window, or in the form of a time domain unit, or in the form of a time domain length, which is not limited to the above. The following uses the time window as an example to illustrate two implementation methods.
[0197] In a first possible implementation, the time domain resources of the reference signal in step 410 include at least one time window. Based on this, in step 420, the terminal device receives the reference signal within some or all of the time domain resources in the at least one time window. Furthermore, the terminal device does not monitor for a wake-up signal within the at least one time window. Furthermore, the network device does not send a wake-up signal within the at least one time window.
[0198] Referring to Figure 6, as an example, Figure 6 is a schematic diagram of Scheme 2 applicable to an embodiment of the present application. As shown in Figure 6, the terminal device can receive the reference signal within the time window, and in the process of the terminal device monitoring the wake-up signal, the wake-up signal is not monitored within the time window. In addition, it can be seen from Figure 6 that, in fact, as an example, the terminal device receives the reference signal and performs measurements at two time domain positions within the time window (i.e., the time domain resources of the reference signal actually measured as shown in Figure 6). Figure 6 shows a time window by way of example, and it can be understood that there may be multiple time windows in practice. The multiple time windows may be discontinuous. As an example, the multiple time windows may be periodic, that is, the time intervals between each two adjacent time windows in the multiple time windows may be the same.
[0199] In a second possible implementation, the time domain resources of the reference signal in step 410 include part of the time domain resources within at least one time window (for distinction, the part of the time domain resources is referred to as the first time domain resources). Based on this, in step 420, the terminal device can receive the reference signal in part or all of the time domain resources in the first time domain resources. The first time domain resources belong to the time domain resources configured for the reference signal, that is, the first time domain resources are time domain resources with reference signal transmission, that is, the network device sends the reference signal in the first time domain resources. In actual communication, the terminal device may receive the reference signal on part of the time domain resources in the first time domain resources, or may receive the signal on all of the time domain resources in the first time domain resources.
[0200] Furthermore, the terminal device does not monitor the wake-up signal within the first time domain resource within the at least one time window. In other words, within the at least one time window, the terminal device monitors the wake-up signal within a time domain resource other than the first time domain resource. Furthermore, within the at least one time window, the network device does not send the wake-up signal within the first time domain resource within the at least one time window.
[0201] Referring to Figure 7, as an example, Figure 7 is another schematic diagram applicable to Scheme 2 of an embodiment of the present application. As shown in Figure 7, within a time window, the first time domain resource includes three positions, and the terminal device does not monitor the wake-up signal at these three positions during the process of monitoring the wake-up signal. At other positions within the time window, the terminal device can monitor the wake-up signal. In addition, at these three positions, the terminal device can receive the reference signal, and it can be seen from Figure 7 that the terminal device actually receives the reference signal at two of the three positions (i.e., the time domain resource of the reference signal actually measured shown in Figure 7) and performs measurement based on the reference signal. Figure 7 shows a time window by way of example, and it can be understood that there may be multiple time windows in practice. In addition, Figure 7 shows by way of example a case where the first time domain resource includes three discontinuous time domain resources, which is not limited to this. In practice, the first time domain resource may also be continuous, or the first time domain resource may include a greater or lesser number of discontinuous time domain resources.
[0202] The time domain resources that the terminal devices involved in Figures 6 and 7 originally used to monitor the wake-up signal can be referred to the relevant description in Solution 1 and will not be repeated here.
[0203] The following describes the solutions related to at least one time domain resource (ie, time window) mentioned in Solution 2. Two implementation methods are described below using the time window as an example.
[0204] In a first possible implementation, the time window is configured by the network device.
[0205] Based on this approach, optionally, method 400 further includes: the terminal device receives first indication information, where the first indication information indicates at least one time window.
[0206] Optionally, the first indication information includes at least one of the following: a starting position of at least one time window, a starting position of a time window in at least one time window, an ending position of at least one time window, an ending position of a time window in at least one time window, a length of at least one time window, a time interval between two adjacent time windows in at least one time window, or an offset; wherein the offset indicates an offset between at least one time window and connected discontinuous reception (CDRX). Several examples are briefly described below.
[0207] Example 1: The first indication information includes a starting position of a time window in at least one time window.
[0208] For example, the first indication information includes the starting position of the first time window in the at least one time window. In this case, the terminal device can obtain the starting position of each time window based on the starting position of the first time window and the interval between each time window. The interval between each time window can be predefined or carried in the first indication information.
[0209] Example 2: The first indication information includes at least one time window and an end position of a time window.
[0210] Example 2 is similar to Example 1 and is not described here in detail.
[0211] Example 3: The first indication information includes the length of a time window in at least one time window.
[0212] For example, it may be assumed (eg, predefined, or indicated by the first indication information) that the lengths of the various time windows are the same, and thus the first indication information only needs to indicate the length of one time window.
[0213] Example 4: The first indication information includes an offset.
[0214] As an example, the offset includes at least one of the following: the offset between the starting position of at least one time window and the starting position of the OnDuration of CDRX, the offset between the starting position of at least one time window and the end position of the OnDuration of CDRX, the offset between the starting position of at least one time window and the middle position of the OnDuration of CDRX, the offset between the starting position of any time window in at least one time window and the starting position of the OnDuration of CDRX, the offset between the starting position of any time window in at least one time window and the end position of the OnDuration of CDRX, or the offset between the starting position of any time window in at least one time window and the middle position of the OnDuration of CDRX.
[0215] In a second possible implementation, the time window is predefined.
[0216] Based on this approach, optionally, method 400 further includes: the terminal device itself determines at least one time window.
[0217] For example, a predefined frame index mode X (frame_index mode X) = 1 or 2 can be used. This means that the first two frames in every X frames are the locations where measurements can be made while the terminal device is monitoring the wake-up signal. This means that at least one time window is the first two frames in every X frames. Where X is an integer greater than 0, for example, X = 20. "1" and "2" represent the frame index, and the frame index can also be other values.
[0218] For another example, the OnDuration of CDRX can be predefined as the location where the terminal device can make measurements while monitoring the wake-up signal, that is, at least one time window is the OnDuration of CDRX. Alternatively, a time location with a length of L (e.g., 20ms) based on the starting position of the OnDuration of CDRX can be predefined as the location where the terminal device can make measurements while monitoring the wake-up signal, that is, the starting position of at least one time window is the starting position of the OnDuration of CDRX, and the length is L. Where L is a number greater than 0.
[0219] For information about the time window, please refer to the description in the first possible implementation method, which will not be repeated here.
[0220] Solution 3, the network device configures or predefines the time domain resources of the wake-up signal, and the terminal device receives the reference signal in the time domain resources outside the time domain resources of the wake-up signal. Based on this, the time domain resources of the reference signal in step 410 are time domain resources different from the time domain resources of the wake-up signal, or time domain resources outside the time domain resources of the wake-up signal. Specifically, if the network device wants to send a wake-up signal, it sends the wake-up signal in the time domain resources of the wake-up signal, and does not send the wake-up signal in the time domain resources outside the time domain resources of the wake-up signal. Accordingly, the terminal device monitors the wake-up signal in the time domain resources of the wake-up signal, and does not monitor the wake-up signal in the remaining time domain resources. In addition, if the network device wants to send a reference signal (or if it wants to configure the time domain resources of the reference signal), it sends the reference signal in the time domain resources outside the time domain resources of the wake-up signal, or configures the time domain resources of the reference signal in the time domain resources outside the time domain resources of the wake-up signal. Accordingly, the terminal device receives the reference signal in the time domain resources outside the time domain resources of the wake-up signal.
[0221] Through this solution, the terminal device and the network device align the time domain resource locations for measurement to avoid missing the wake-up signal.
[0222] See Figure 8, which is an example diagram of Solution 3 applicable to an embodiment of the present application. As shown in Figure 8, assuming that the network device configures a time domain resource for monitoring a wake-up signal for a terminal device, the terminal device monitors the wake-up signal within the time domain resource for the wake-up signal and does not monitor the wake-up signal in time domain resources other than the time domain resource for the wake-up signal. When the terminal device performs measurement based on the reference signal, it receives the reference signal for measurement in time domain resources other than the time domain resource for the wake-up signal.
[0223] As an example, the time domain resources for monitoring the wake-up signal shown in FIG8 may be part of all the time domain resources used to monitor the wake-up signal. For example, the terminal device monitors the wake-up signal in a duty cycle manner, and the time domain resources for monitoring the wake-up signal shown in FIG8 are the time domain locations for periodically monitoring the wake-up signal.
[0224] Based on solution 3, the determination of the time domain resources of the reference signal and the time domain resources of the wake-up signal in step 410 can also be replaced by: determining the time domain resources of the wake-up signal. After determining the time domain resources of the wake-up signal, the time domain resources of the reference signal can also be directly determined, that is, the time domain resources of the reference signal are time domain resources other than the time domain resources of the wake-up signal, or in other words, the time domain resources of the reference signal are time domain resources different from the time domain resources of the wake-up signal. In this case, the "time domain resources of the reference signal" are positions where the reference signal can be received, that is, the embodiment of the present application does not limit the reference signal to be sent at all positions within the "time domain resources of the reference signal", nor does it limit the terminal device to receive the reference signal at all positions. It just means that if the network device wants to send a reference signal, it can use the time domain resources in the "time domain resources of the reference signal" to send the reference signal; if the terminal device wants to receive a reference signal, it can use the time domain resources in the "time domain resources of the reference signal" to receive the reference signal.
[0225] In Solution 3, the time domain resource of the reference signal is a time domain resource other than the time domain resource of the wake-up signal. This can be predefined or configured, and there is no limitation on this. For example, the protocol can define that the terminal device performs measurements at a location other than the time domain resource of the wake-up signal.
[0226] Optionally, the time domain resources of the wake-up signal are discontinuous. In other words, the wake-up signal includes multiple time domain units in the time domain, and at least two of the multiple time domain units are discontinuous. As an example, the discontinuous time domain resources of the wake-up signal can be combined with Solution 3. For example, taking Solution 3 as an example, as shown in Figure 8, the time domain resources of the wake-up signal are discontinuous.
[0227] Further optionally, the intervals between each two adjacent continuous time domain resources are the same or different. For example, the time domain resources of the wake-up signal include M groups of time domain units, each group of time domain units includes at least one time domain unit, the time domain units in each group of time domain units are continuous, and the intervals between two adjacent groups of time domain units in the M groups of time domain units are the same or different.
[0228] In one possible implementation, the time domain resource of the wake-up signal is periodic, based on which the terminal device can periodically monitor the wake-up signal.
[0229] Further, optionally, method 400 further includes: the terminal device sending second indication information to the network device, where the second indication information indicates the desired time domain resource of the terminal device, i.e., the time domain resource for transmitting the reference signal desired by the terminal device as indicated by the second indication information. Based on this, the terminal device may report the desired measurement time to the network device.
[0230] Taking the above-mentioned solution 2 as an example, the network device can refer to the measurement time domain resources expected by the terminal device in the second indication information to determine at least one time window, so that the configured at least one time window can better meet the needs of the terminal device.
[0231] The above describes the relevant schemes for the time domain resources of the wake-up signal and the time domain resources of the reference signal. It should be noted that for the time domain resources of other signals monitored (or received) by the wake-up circuit, reference can also be made to the relevant design of the time domain resources of the wake-up signal in method 400.
[0232] For example, method 400 may also be modified as follows: in step 410, the terminal device determines the time domain resources of the reference signal and the time domain resources of the first type of signal; in step 420, the terminal device receives the reference signal within some or all of the time domain resources of the reference signal; and in step 430, the terminal device monitors (or receives) the first type of signal within the time domain resources of the first type of signal. The first type of signal includes a wake-up signal and / or a synchronization signal (such as LP-SS).
[0233] For another example, method 400 may also be modified as follows: in step 410, the terminal device determines time domain resources for the second type of signal and time domain resources for the first type of signal; in step 420, the terminal device receives the second type of signal within some or all of the time domain resources of the second type of signal; and in step 430, the terminal device monitors (or receives) the first type of signal within the time domain resources of the first type of signal. The first type of signal includes a wake-up signal and / or a synchronization signal (such as LP-SS), and the second type of signal includes a reference signal.
[0234] The first type signal and the second type signal are described in detail below.
[0235] Optionally, the terminal device sends capability information to the network device, and the capability information indicates whether the first type of signal and the second type of signal can be received simultaneously (or whether the first type of signal and the second type of signal can be supported to be received simultaneously). The terminal device sends capability information to the network device, which can be used in combination with method 400 or used independently, and is not limited to this. As an example, when used in combination, the indication information may indicate that the terminal device cannot receive the first type of signal and the second type of signal at the same time. In this way, in the case where the first type of signal and the second type cannot be received simultaneously, the terminal device can receive the reference signal and the monitoring wake-up signal based on the method described in method 400.
[0236] Optionally, the terminal device includes a first module and a second module, wherein the indication information indicates whether the first type of signal and the second type of signal can be received simultaneously. Alternatively, the indication information may be replaced by: indicating whether the first module (such as the wake-up circuit) and the second module (such as the main circuit) can receive signals simultaneously. Regarding the first module and the second module, refer to the previous description and will not be repeated here. The following is an example description using the wake-up circuit and the main circuit as examples.
[0237] Optionally, the first type signal adopts OOK modulation, and the second type signal adopts non-OOK modulation. For example, the modulation mode of the second type signal is OFDM or DFT-s-OFDM.
[0238] Optionally, the first type of signal includes a wake-up signal and / or a synchronization signal (such as LP-SS).
[0239] Optionally, the second type of signal is a signal different from the wake-up signal and the synchronization signal. The second type of signal may represent various downlink signals in the NR system. As an example, the first type of signal includes any one or more of the following: SSB, PDCCH, physical downlink shared channel (PDSCH), CSI-RS, phase tracking reference signal (PTRS), positioning reference signal (PRS), demodulation reference signal (DMRS).
[0240] Optionally, the capability information is per band, or the capability information is associated with a band; or, the capability information is per band combination, or the capability information is associated with a band combination. Based on this, different bands or band combinations can have their own capability information, and when reporting capability information, it can be reported for different bands or band combinations. The term "band combination" can also be replaced with other descriptions, such as a band group, and its naming does not limit the scope of protection of the embodiments of this application. The following describes these two scenarios.
[0241] In the first possible scenario, the capability information is a band combination, or the capability information is associated with the band combination.
[0242] As an example, the capability information and the band combination may exist in the form of a table, a function, a text, or a string, such as for storage or transmission. Table 1 below is an example of presenting the capability information and the band combination in a table form.
[0243] Table 1
[0244] Taking Table 1 as an example, if the wake-up circuit and the main circuit of the terminal device operate in band#1 and band#2 respectively, if the wake-up circuit operates in band#1 and the main circuit operates in band#2, and if the wake-up circuit operates in band#2 and the main circuit operates in band#1, then the terminal device can simultaneously receive the first type of signal and the second type of signal, that is, the terminal device can simultaneously receive signals through the main circuit and the wake-up circuit; if the wake-up circuit and the main circuit of the terminal device operate in band#3 and band#4 respectively, if the wake-up circuit operates in band#3 and the main circuit operates in band#4, and if the wake-up circuit operates in band#4 and the main circuit operates in band#1, then the terminal device cannot simultaneously receive the first type of signal and the second type of signal, that is, the terminal device cannot simultaneously receive signals through the main circuit and the wake-up circuit.
[0245] The main circuit operates in band #1, indicating that the frequency of the signal received by the main circuit is band #1. Similarly, the wake-up circuit operates in band #2, indicating that the frequency of the signal received by the wake-up circuit is band #2. This will not be explained further below.
[0246] It is understood that Table 1 is an example and is not intended to be limiting. For example, a greater number of band combinations may be included. For another example, a band combination may include a greater number of bands.
[0247] In this case, the capability information reported by the terminal device can be the capability information of a certain band combination, or the capability information of certain band combinations. Taking Table 1 as an example, the terminal device can report the capability information associated with the band combination of band#1 and band#2, and / or the terminal device can report the capability information associated with the band combination of band#3 and band#4. In addition, the capability information and the information of the associated band combination (such as the identifier of the associated band combination) can be carried in the reported capability information; or, the capability information can be carried directly. In this case, it can be assumed that the network side (such as the network device) knows which band combination the capability information is associated with.
[0248] In the second possible scenario, the capability information is for a single band, or is associated with a band. In this case, the main circuit and the wake-up circuit can be defaulted or predefined to operate in the same band.
[0249] As an example, the capability information and band may be present in the form of a table, function, text, or string, such as for storage or transmission. Table 2 below is an example of presenting capability information and band in table form.
[0250] Table 2
[0251] Taking Table 2 as an example, if the terminal device operates in band#1 or band#2, that is, the frequency of the signal is band#1 or band#2, the terminal device can simultaneously receive the first type of signal and the second type of signal, that is, the terminal device can simultaneously receive the signal through the main circuit and the wake-up circuit; if the terminal device operates in band#3, that is, the frequency of the signal is band#3, the terminal device cannot simultaneously receive the first type of signal and the second type of signal, that is, the terminal device cannot simultaneously receive the signal through the main circuit and the wake-up circuit.
[0252] It should be understood that Table 2 is provided for illustrative purposes only and is not intended to be limiting. For example, a greater number of bands may be included. For another example, bands that can simultaneously receive both the first and second types of signals may be listed together, while bands that cannot simultaneously receive both the first and second types of signals may be listed together.
[0253] In this case, the capability information reported by the terminal device can be the capability information of a certain band (such as a certain band supported by the terminal device), or the capability information of certain bands (such as certain bands supported by the terminal device). Taking Table 2 as an example, the terminal device can report the capability information associated with at least one of the following bands: band#1, band#2, or band#3. In addition, the capability information and the information of the associated band (such as the identifier of the associated band) can be carried in the reported capability information; or, the capability information can be carried directly, in which case it can be assumed that the network side (such as the network device) knows which band the capability information is associated with; or, the band information can be carried directly, in which case it can be assumed that the network side knows the capability information of the band.
[0254] It can be understood that the above description uses band and band combination as an example, which is not limited to this. For example, band can also be replaced by other frequency domain units.
[0255] It is understood that in each embodiment of the present application, "receiving" can also be replaced by "detecting" or "reading" or "monitoring". For example, "receiving a reference signal" can also be replaced by "detecting a reference signal" or "reading a reference signal" or "monitoring a reference signal".
[0256] It can also be understood that in some of the above embodiments, the main circuit and the wake-up circuit are mainly used as examples for illustrative explanation, and the present application is not limited to this. For example, "wake-up circuit" can also be replaced by "first module", or can also be replaced by "wake-up link", or can also be replaced by "in the first state", or can also be replaced by "in the first mode". For example, "the terminal device receives a signal through the wake-up circuit" can also be replaced by "the terminal device receives a signal through the first module or the terminal device receives a signal on the wake-up link". "Main circuit" can also be replaced by "second module", or can also be replaced by "main link", or can also be replaced by "in the second state", or can also be replaced by "in the second mode". For example, "the terminal device receives a signal through the main circuit" can also be replaced by "the terminal device receives a signal through the second module or the terminal device receives a signal on the main link".
[0257] It is also understood that in some of the above embodiments, when "transmission" is mentioned, unless otherwise specified, transmission includes receiving and / or sending. For example, transmitting a signal may include receiving a signal and / or sending a signal.
[0258] It is also understood that in the various embodiments of the present application, the interaction between a terminal device and a network device is mainly used as an example for illustrative description, and the present application is not limited thereto. The terminal device can be replaced by a receiving device, which can be a terminal device or a network device; the network device can be replaced by a sending device, which can be a terminal device or a network device. For example, "terminal device" can be replaced by "first terminal device" and "network device" can be replaced by "second terminal device."
[0259] It is also understood that in some of the above embodiments, sending signals is mentioned multiple times. Taking A sending a signal to B as an example, A sending a signal to B may include A sending the signal directly to B or A sending the signal to B through other devices, and there is no limitation on this.
[0260] It can also be understood that in some of the above embodiments, the multiple references to pre-defined may indicate that the pre-defined standard protocol is pre-defined, or may indicate that the pre-agreed or pre-negotiated standard protocol is pre-agreed or pre-negotiated between devices.
[0261] It can also be understood that some optional features in the various embodiments of the present application may not depend on other features in certain scenarios, and may also be combined with other features in certain scenarios, without limitation.
[0262] It can also be understood that in the above-mentioned method embodiments, the methods and operations implemented by the terminal device can also be implemented by components that can be formed by the terminal device (such as chips or circuits); in addition, the methods and operations implemented by the network device can also be implemented by components that can be formed by the network device (such as chips or circuits), without limitation.
[0263] The method provided in the embodiments of the present application is described in detail above with reference to Figures 4 to 8. Below, the apparatus provided in the embodiments of the present application is described in detail with reference to Figures 9 to 11. It should be understood that the description of the apparatus embodiment corresponds to the description of the method embodiment. Therefore, for matters not described in detail, reference can be made to the method embodiment above. For the sake of brevity, they will not be repeated here.
[0264] Referring to Figure 9 , as an example, Figure 9 is a schematic diagram of a communication device 900 provided in an embodiment of the present application. Device 900 includes a transceiver unit 910 and a processing unit 920. Transceiver unit 910 can be used to implement corresponding communication functions. Transceiver unit 910 can also be referred to as a communication interface or a communication unit. Processing unit 920 can be used to perform processing, such as determining time domain resources or performing measurements.
[0265] Optionally, the device 900 may further include a storage unit, which may be used to store instructions and / or data. The processing unit 920 may read the instructions and / or data in the storage unit so that the device implements the aforementioned method embodiment.
[0266] Optionally, the transceiver unit 910 may include a receiving unit and a sending unit. The receiving unit may be used to perform reception-related operations (such as receiving data or messages), and the sending unit may be used to perform transmission-related operations (such as sending data or messages).
[0267] In a first possible design, the apparatus 900 may be the terminal device in the aforementioned embodiment, and the apparatus 900 may implement the steps or processes corresponding to those performed by the terminal device in the above method embodiment. The transceiver unit 910 may be used to perform the transceiver-related operations (such as operations of sending and / or receiving data or messages) of the terminal device in the above method embodiment, such as the transceiver unit 910 may be used to perform steps 420 and 430 in the embodiment shown in FIG4 . The processing unit 920 may be used to perform the processing-related operations of the terminal device in the above method embodiment, or operations other than transceiver (such as operations other than sending and / or receiving data or messages), such as the processing unit 920 may be used to perform step 410 in the embodiment shown in FIG4 .
[0268] In one possible implementation, the processing unit 920 is used to determine the time domain resources of the reference signal and the time domain resources of the wake-up signal; the transceiver unit 910 is used to receive the reference signal within part or all of the time domain resources of the reference signal; the transceiver unit 910 is also used to monitor the wake-up signal within the time domain resources of the wake-up signal.
[0269] In a second possible design, the apparatus 900 may be a network device in the aforementioned embodiment, and the apparatus 900 may implement the steps or processes corresponding to those performed by the network device in the above method embodiment. The transceiver unit 910 may be used to perform transceiver-related operations (such as operations of sending and / or receiving data or messages) of the network device in the above method embodiment, such as the transceiver unit 910 may be used to perform steps 420 and 430 in the embodiment shown in FIG4 . The processing unit 920 may be used to perform processing-related operations of the network device in the above method embodiment, or operations other than transceiver (such as operations other than sending and / or receiving data or messages), such as the processing unit 920 may be used to determine the time domain resources of the reference signal and / or the time domain resources of the wake-up signal.
[0270] In one possible implementation, the processing unit 920 is used to determine the time domain resources of the reference signal and the time domain resources of the wake-up signal; the transceiver unit 910 is used to send the reference signal within part or all of the time domain resources of the reference signal; the transceiver unit 910 is also used to send the wake-up signal within part or all of the time domain resources of the wake-up signal.
[0271] It should be understood that the specific process of each unit executing the above corresponding steps has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.
[0272] It should also be understood that the device 900 here is embodied in the form of a functional unit. The term "unit" here can refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combined logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art will understand that the device 900 can be specifically the communication device in the above-mentioned embodiment, and can be used to execute the various processes and / or steps corresponding to the communication device in the above-mentioned method embodiments. To avoid repetition, they will not be described here.
[0273] The apparatus 900 of each of the above-described solutions has the function of implementing the corresponding steps performed by the communication device in the above-described method. The functions can be implemented by hardware, or by hardware executing corresponding software implementations. The hardware or software includes one or more modules corresponding to the above-described functions; for example, the transceiver unit can be replaced by a transceiver (for example, the transmitting unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor to respectively perform the transceiver operations and related processing operations in each method embodiment.
[0274] In addition, the transceiver unit 910 may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing unit may be a processing circuit.
[0275] It should be noted that the apparatus in FIG9 can be the communication device in the aforementioned embodiment, or it can be a chip or chip system, such as a system on chip (SoC). The transceiver unit can be an input / output circuit or a communication interface; the processing unit can be a processor, microprocessor, or integrated circuit integrated on the chip. This is not limited here.
[0276] Referring to FIG10 , as an example, FIG10 is a schematic diagram of another communication device 1000 provided in an embodiment of the present application. The device 1000 includes a processor 1010, which is coupled to a memory 1020. The memory 1020 is used to store computer programs or instructions and / or data. The processor 1010 is used to execute the computer programs or instructions stored in the memory 1020, or read the data stored in the memory 1020, to perform the methods in the above method embodiments.
[0277] Optionally, there are one or more processors 1010 .
[0278] Optionally, there are one or more memories 1020 .
[0279] Optionally, the memory 1020 is integrated with the processor 1010 or provided separately.
[0280] Optionally, as shown in Figure 10, the apparatus 1000 further includes a transceiver 1030, which is configured to receive and / or transmit signals. For example, the processor 1010 is configured to control the transceiver 1030 to receive and / or transmit signals.
[0281] As an example, the processor 1010 may have the function of the processing unit 920 shown in FIG. 9 , the memory 1020 may have the function of a storage unit, and the transceiver 1030 may have the function of the transceiver unit 910 shown in FIG. 9 .
[0282] As a solution, the device 1000 is used to implement the operations performed by the communication device in the above various method embodiments.
[0283] For example, the processor 1010 is used to execute the computer program or instructions stored in the memory 1020 to implement the relevant operations of the terminal device or network device in the above various method embodiments.
[0284] It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.
[0285] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory and / or a non-volatile memory. Among them, the non-volatile memory may 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 may be a random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM includes the following forms: 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 rambus RAM (DR RAM).
[0286] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.
[0287] It should also be noted that the memory described herein is intended to comprise, but not be limited to, these and any other suitable types of memory.
[0288] 11 , as an example, is a schematic diagram of a chip system 1100 provided in accordance with an embodiment of the present application. The chip system 1100 (or also referred to as a processing system) includes a logic circuit 1110 and an input / output interface 1120 .
[0289] Logic circuit 1110 may be a processing circuit within chip system 1100. Logic circuit 1110 may be coupled to a storage unit and invoke instructions within the storage unit, enabling chip system 1100 to implement the methods and functions of various embodiments of the present application. Input / output interface 1120 may be an input / output circuit within chip system 1100, outputting information processed by chip system 1100 or inputting data or signaling information to be processed into chip system 1100 for processing.
[0290] Alternatively, the logic circuit 1110 may be implemented by one or more processors, including the one or more processors or a processing portion in the one or more processors.
[0291] Optionally, the input / output interface 1120 may include a transceiver circuit, a transceiver, an input / output circuit, or a communication interface.
[0292] As a solution, the chip system 1100 is used to implement the operations performed by a communication device (such as a terminal device, or a network device) in the above various method embodiments.
[0293] For example, the logic circuit 1110 is used to implement the processing-related operations performed by the communication device (such as a terminal device, or a network device) in the above method embodiments; the input / output interface 1120 is used to implement the sending and / or receiving-related operations performed by the communication device (such as a terminal device, or a network device) in the above method embodiments.
[0294] An embodiment of the present application further provides a computer-readable storage medium storing computer instructions for implementing the methods executed by a communication device (such as a terminal device or a network device) in the above-mentioned method embodiments.
[0295] For example, when the computer program is executed by a computer, the computer can implement the methods performed by a communication device (such as a terminal device, or a network device) in each embodiment of the above method.
[0296] An embodiment of the present application further provides a computer program product comprising instructions, which, when executed by a computer, implement the methods performed by a communication device (such as a terminal device or a network device) in the above-mentioned method embodiments.
[0297] The present application also provides a communication system, which includes the transmitting device and the receiving device in the above embodiments. For example, the system includes the terminal device and the network device in Figure 4.
[0298] The explanation of the relevant contents and beneficial effects of any of the above-mentioned devices can be referred to the corresponding method embodiments provided above, which will not be repeated here.
[0299] In the several embodiments provided in this application, it should be understood that the disclosed 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 units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, 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.
[0300] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. For example, the computer can be a personal computer, a server, or a network device, etc. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD)). For example, the aforementioned available medium includes, but is not limited to, various media that can store program code, 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.
[0301] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.
Claims
1. A method for signal transmission, characterized in that, including: determining the time-domain resources of a reference signal and the time-domain resources of a wake-up signal; receiving the reference signal within some or all of the time-domain resources of the reference signal; monitoring the wake-up signal within the time-domain resources of the wake-up signal.
2. The method according to claim 1, characterized in that, The reference signal is a signal for measurement, and the wake-up signal is used to wake up at least one terminal device.
3. The method according to claim 1 or 2, characterized in that, The method further includes: transmitting at least one piece of capability information, where each piece of capability information in the at least one piece of capability information indicates whether it is possible to receive a first type of signal and a second type of signal simultaneously, where the first type of signal includes the wake-up signal, the second type of signal includes the reference signal, the first type of signal uses on-off keying (OOK) modulation, and the second type of signal uses non-OOK modulation.
4. The method according to claim 3, wherein One piece of capability information in the at least one piece of capability information is for one frequency band or a combination of frequency bands.
5. The method according to claim 3 or 4, characterized in that, The method further includes: receiving the first type of signal through a wake-up circuit and receiving the second type of signal through a main circuit.
6. The method according to any one of claims 1 to 5, characterized in that The method further includes: not monitoring the wake-up signal within the time-domain resources of the reference signal.
7. The method according to any one of claims 1 to 6, characterized in that The determining of the time-domain resources of the reference signal includes: receiving configuration information, where the configuration information includes information on the time-domain resources of the reference signal.
8. The method according to any one of claims 1 to 5, wherein the time-domain resources of the reference signal include at least one time window; or, the time-domain resources of the reference signal include first time-domain resources in the at least one time window, where the first time-domain resources are the time-domain resources in which the reference signal is transmitted.
9. The method according to claim 8, wherein the time-domain resources of the reference signal include at least one time window, and the method further includes: not monitoring the wake-up signal within the at least one time window; or, the time-domain resources of the reference signal include first time-domain resources in the at least one time window, and the method further includes: not monitoring the wake-up signal within the first time-domain resources, and / or monitoring the wake-up signal within time-domain resources in the at least one time window other than the first time-domain resources.
10. The method according to claim 8 or 9, characterized in that The method further includes: receiving first indication information, where the first indication information indicates the at least one time window.
11. The method according to claim 8 or 9, characterized in that, The at least one time window is predefined.
12. The method according to any one of claims 1 to 5, wherein the time-domain resources of the reference signal are different from the time-domain resources of the wake-up signal; or, the time-domain resources of the reference signal are resources other than the time-domain resources of the wake-up signal.
13. The method according to any one of claims 1 to 12, wherein the receiving of the reference signal within some or all of the time-domain resources of the reference signal includes: receiving the reference signal within some or all of the time-domain resources of the reference signal through a main circuit; the monitoring of the wake-up signal within the time-domain resources of the wake-up signal includes: monitoring the wake-up signal within the time-domain resources of the wake-up signal through a wake-up circuit.
14. The method according to any one of claims 1 to 13, characterized in that, The method further includes: Send a second indication message, where the second indication message indicates the time domain resource of the transmission reference signal expected by the terminal device.
15. A method for signal transmission, characterized in that, Including: Determine the time domain resource of the reference signal and the time domain resource of the wake-up signal; Transmit the reference signal within part or all of the time domain resources in the time domain resource of the reference signal; Transmit the wake-up signal within part or all of the time domain resources in the time domain resource of the wake-up signal.
16. The method according to claim 15, wherein The reference signal is a signal for measurement, and the wake-up signal is used to wake up at least one terminal device.
17. The method according to claim 15 or 16, characterized in that, The method further includes: Receive at least one capability information, where each capability information in the at least one capability information indicates whether it is possible to receive a first type of signal and a second type of signal simultaneously, where the first type of signal includes the wake-up signal, the second type of signal includes the reference signal, the first type of signal uses on-off keying (OOK) modulation, and the second type of signal uses non-OOK modulation.
18. The method according to claim 17, wherein One capability information in the at least one capability information is for one frequency band or a combination of frequency bands.
19. The method according to claim 17 or 18, characterized in that, The method further includes: Transmit the first type of signal through a wake-up circuit and transmit the second type of signal through a main circuit.
20. The method according to any one of claims 15 to 19, characterized in that, The method further includes: Do not transmit the wake-up signal within the time domain resource of the reference signal.
21. The method according to any one of claims 15 to 20, characterized in that, The method further includes: Transmit configuration information, where the configuration information includes information on the time domain resource of the reference signal.
22. The method according to any one of claims 15 to 19, characterized in that The time domain resource of the reference signal includes at least one time window; or, The time domain resource of the reference signal includes a first time domain resource in the at least one time window, where the first time domain resource is the time domain resource in which the reference signal is transmitted.
23. The method according to claim 22, characterized in that The time domain resource of the reference signal includes at least one time window, and the method further includes: Do not transmit the wake-up signal within the at least one time window; or, The time domain resource of the reference signal includes a first time domain resource in the at least one time window, and the method further includes: Do not transmit the wake-up signal within the first time domain resource, and / or transmit the wake-up signal within the time domain resources in the at least one time window other than the first time domain resource.
24. The method according to claim 22 or 23, characterized in that, The method further includes: Transmit a first indication message, where the first indication message indicates the at least one time window.
25. The method according to claim 22 or 23, characterized in that The at least one time window is predefined.
26. The method according to any one of claims 15 to 19, characterized in that The time domain resource of the reference signal is different from the time domain resource of the wake-up signal; or, The time domain resource of the reference signal is a resource other than the time domain resource of the wake-up signal.
27. The method according to any one of claims 15 to 26, characterized in that The transmitting the reference signal within part or all of the time domain resources in the time domain resource of the reference signal includes: Transmit the reference signal within part or all of the time domain resources in the time domain resource of the reference signal through a main circuit; Sending the wake-up signal within some or all of the time-domain resources of the wake-up signal's time-domain resource includes: Generating the wake-up signal within some or all of the time-domain resources of the wake-up signal's time-domain resource through a wake-up circuit.
28. The method according to any one of claims 15 to 27, characterized in that, The method further includes: Receiving second indication information, where the second indication information indicates the time-domain resource of the transmission reference signal desired by the terminal device.
29. The method according to any one of claims 1 to 28, characterized in that, The time-domain resource of the wake-up signal is discontinuous, or the time-domain resource of the wake-up signal is periodic.
30. The method according to any one of claims 1 to 29, characterized in that, The modulation mode of the wake-up signal is OOK modulation, and the modulation mode of the reference signal is non-OOK modulation.
31. The method according to any one of claims 1 to 30, characterized in that, The reference signal is used for at least one of the following: radio link monitoring, beam failure detection, channel measurement, radio resource management measurement, or beam measurement.
32. The method according to claim 31, wherein The radio resource management measurement includes serving cell measurement and / or neighbor cell measurement.
33. The method according to claim 32, wherein The neighbor cell measurement includes at least one of the following: co-frequency measurement, inter-frequency measurement, or inter-radio access system measurement.
34. A communication device, characterized in that, Including a module or unit for performing the method according to any one of claims 1 to 33.
35. A communication device, characterized in that, Including a processor, where the processor is configured to execute a computer program or instruction in a memory to cause the device to perform the method according to any one of claims 1 to 33.
36. The device according to claim 35, characterized in that, The device further includes the memory and / or a communication interface, and the communication interface is coupled to the processor. The communication interface is used for inputting and / or outputting information.
37. A computer-readable storage medium, characterized in that, A computer program or instruction is stored on the computer-readable storage medium, and when the computer program or instruction runs on a communication device, it causes the communication device to perform the method according to any one of claims 1 to 33.
38. A computer program product, characterized in that, The computer program product includes a computer program or instruction for performing the method according to any one of claims 1 to 33.
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