Method and apparatus for wireless communication

Abstract

A method and apparatus for wireless communication are provided. The method is applied to a first terminal device comprising a first communication module and a second communication module, and the method comprises the following steps: receiving a first wake-up signal which is used for waking up the second communication module; determining a first paging opportunity for performing paging detection according to the first information; wherein the first wake-up signal is received through the first communication module, the paging detection is executed by the second communication module, and the first information comprises a receiving opportunity of the first wake-up signal and / or a load of a service cell where the first terminal device is located.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a method and device for wireless communication. Background Art

[0002] In order to reduce the power consumption of terminal devices due to periodic detection of paging messages, some communication systems have introduced low-power wake-up signals (LP-WUS). For example, the terminal device can receive the LP-WUS sent by the network device through a low-power wake-up module independent of the main communication module. Therefore, how the terminal device performs paging detection based on LP-WUS is an issue that needs to be considered. Summary of the invention

[0003] The present application provides a method and apparatus for wireless communication. Various aspects involved in the embodiments of the present application are introduced below.

[0004] In a first aspect, a method for wireless communication is provided, the method being applied to a first terminal device comprising a first communication module and a second communication module, the method comprising: receiving a first wake-up signal, the first wake-up signal being used to wake up the second communication module; determining a first paging timing for performing a paging detection based on first information; wherein the first wake-up signal is received by the first communication module, the paging detection is performed by the second communication module, and the first information includes a reception timing of the first wake-up signal, and / or a load of a service cell where the first terminal device is located.

[0005] In a second aspect, a method for wireless communication is provided, comprising: sending a first wake-up signal to a first terminal device, the first wake-up signal being used to wake up a second communication module of the first terminal device; determining a first paging time for sending a paging message to the first terminal device based on first information; wherein the first terminal device comprises a first communication module and a second communication module, the first wake-up signal is received by the first communication module, the paging message is detected by the second communication module, and the first information comprises a reception time of the first wake-up signal, and / or a load of a service cell where the first terminal device is located.

[0006] According to a third aspect, a device for wireless communication is provided, which is a first terminal device, and includes: a first communication module, used to receive a first wake-up signal, and the first wake-up signal is used to wake up a second communication module; a second communication module, used to determine a first paging time for performing paging detection based on first information; wherein the first wake-up signal is received by the first communication module, the paging detection is performed by the second communication module, and the first information includes the reception time of the first wake-up signal, and / or the load of the service cell where the first terminal device is located.

[0007] In a fourth aspect, a device for wireless communication is provided, which is a network device, and includes: a sending module, used to send a first wake-up signal to a first terminal device, and the first wake-up signal is used to wake up a second communication module of the first terminal device; a determination module, used to determine a first paging time for sending a paging message to the first terminal device based on first information; wherein, the first terminal device includes a first communication module and a second communication module, the first wake-up signal is received by the first communication module, and the paging message is detected by the second communication module, and the first information includes the reception time of the first wake-up signal, and / or, the load of the service cell where the first terminal device is located.

[0008] In a fifth aspect, a communication device is provided, comprising a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory to execute the method described in the first aspect or the second aspect.

[0009] In a sixth aspect, a device is provided, comprising a processor, configured to call a program from a memory to execute the method described in the first aspect or the second aspect.

[0010] In a seventh aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the first aspect or the second aspect.

[0011] According to an eighth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0012] According to a ninth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method described in the first aspect or the second aspect.

[0013] In a tenth aspect, a computer program is provided, wherein the computer program enables a computer to execute the method as described in the first aspect or the second aspect.

[0014] After the first terminal device in the embodiment of the present application receives the first wake-up signal through the first communication module, the first paging time for paging detection can be determined according to the reception time of the first wake-up signal and / or the load of the cell. It can be seen that the first paging time is not statically configured by the network device, but will change dynamically according to the reception time of the first wake-up signal or the current load. By designing and using dynamic paging time, it is helpful to page any terminal device at any time within the paging cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a wireless communication system applied in the embodiments of the present application.

[0016] Figure 2 This is a possible structural diagram of a low-power wake-up module applicable to an embodiment of the present application.

[0017] Figure 3 This is another possible structural diagram of a low-power wake-up module applicable to the embodiment of the present application.

[0018] Figure 4 This is another possible structural diagram of a low-power wake-up module applicable to the embodiment of the present application.

[0019] Figure 5 It is a flowchart of a method for wireless communication provided in an embodiment of the present application.

[0020] Figure 6 yes Figure 5 A schematic diagram of a possible implementation of the method shown.

[0021] Figure 7 It is a structural diagram of a device for wireless communication provided in an embodiment of the present application.

[0022] Figure 8 It is a structural diagram of another device for wireless communication provided in an embodiment of the present application.

[0023] Fig. 9 It is a structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0024] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of the present application.

[0025] The embodiments of the present application can be applied to various communication systems. For example, the embodiments of the present application can be applied to global system of mobile communication (GSM) system, time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), single-carrier frequency division multiple access (SC-FDMA), code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS) system, long term evolution (LTE) system, advanced long term evolution (LTE-A) system, new radio (NR) system, NR system evolution system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, universal mobile communication system (Universal Mobile Communications System). The present invention can also be applied to other communication systems and radio technologies, such as the sixth generation (6th generation, 6G) mobile communication system, or future communication systems such as satellite communication systems.

[0026] Traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, communication systems can not only support traditional cellular communications, but also support one or more other types of communications. For example, a communication system can support one or more of the following communications: device to device (D2D) communication, machine to machine (M2M) communication, machine type communication (MTC), enhanced machine type communication (eMTC), vehicle to vehicle (V2V) communication, and vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to communication systems that support the above communication methods.

[0027] The communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0028] The communication system in the embodiment of the present application can be applied to an unlicensed spectrum. The unlicensed spectrum can also be considered as a shared spectrum. Alternatively, the communication system in the embodiment of the present application can also be applied to an authorized spectrum. The authorized spectrum can also be considered as a dedicated spectrum.

[0029] The embodiments of the present application can be applied to a non-terrestrial network (NTN) system. As an example, the NTN system can be a 4G-based NTN system, a NR-based NTN system, an Internet of Things (IoT)-based NTN system, or a narrowband Internet of Things (NB-IoT)-based NTN system.

[0030] The communication system may include one or more terminal devices. The terminal devices mentioned in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc. It should be noted that the specific type of the terminal device is not limited in the embodiments of the present application.

[0031] In some embodiments, the terminal device may be a station (STATION, ST) in a WLAN. In some embodiments, the terminal device may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system (such as an NR system), or a terminal device in a future-evolved public land mobile network (PLMN) network, etc.

[0032] In some embodiments, the terminal device may be a device that provides voice and / or data connectivity to a user. For example, the terminal device may be a handheld device, a vehicle-mounted device, etc., with a wireless connection function. As some specific examples, the terminal device can be a mobile phone, a tablet personal computer, a personal computer (PC), a laptop computer or a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), a wearable device (wearable device), a robot, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, and a vehicle UE (VUE), a pedestrian terminal (Pedestrian UE), etc. UE, PUE), smart home (home appliances with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, ATMs or self-service machines and other terminal-side devices.

[0033] As an example, wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc.

[0034] In some embodiments, the terminal device can be deployed on land. For example, the terminal device can be deployed indoors or outdoors. In some embodiments, the terminal device can be deployed on the water, such as on a ship. In some embodiments, the terminal device can be deployed in the air, such as on an airplane, a balloon, and a satellite.

[0035] In addition to the terminal device, the communication system may also include one or more network devices. The network device in the embodiment of the present application may be a device for communicating with the terminal device. The network device may also be referred to as an access network device, a radio access network device, a radio access network (RAN), a radio access network function, or a radio access network unit. The network device in the embodiment of the present application may refer to a RAN node (or device) that accesses the terminal device to a wireless network. The network device may be, for example, a base station, a WLAN access point, or a WiFi node. The network device can broadly cover the following various names, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point (AP), base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), home NodeB, home evolved NodeB, transmitting and receiving point (TRP), transmitting point (TP), master station (MeNB), secondary station (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, transmission node, transceiver node, base band unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (central The base station may be a mobile switching center, a device that performs the function of a base station in D2D, V2X, and M2M communications, a network side device in a 6G network, a device that performs the function of a base station in future communication systems, and the like. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technologies and specific equipment forms adopted by the network equipment.

[0036] 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.

[0037] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device includes a CU and a DU. The gNB may also include an AAU.

[0038] As an example but not limitation, in the embodiments of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. In some embodiments of the present application, the network device may be a satellite or a balloon station. In some embodiments of the present application, the network device may also be a base station set up in a location such as land or water.

[0039] In an embodiment of the present application, a network device may provide services for a cell, and a terminal device may communicate with the network device through transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell may be a cell corresponding to a network device (e.g., a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0040] For example, Figure 1 The following is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. Figure 1 As shown, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices located in the coverage area.

[0041] Figure 1 One network device and two terminal devices are shown exemplarily. In some embodiments of the present application, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited.

[0042] In the embodiment of the present application, the network side device in the communication system may include an access network device or a core network device. Figure 1The communication system shown may also include other network entities such as a mobility management entity (MME) and an access and mobility management function (AMF), which is not limited in the embodiments of the present application.

[0043] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be referred to as a communication device. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above and will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0044] For ease of understanding, some relevant technical knowledge involved in the embodiments of the present application is first introduced. The following related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0045] With the development of mobile communication technology, the application areas of the Internet of Things are gradually expanding. However, without the support of external power supply, 5G IoT devices are difficult to implement in practice. This is because 5G devices in cellular networks consume tens of milliwatts of power even if they are not transmitting or receiving any data. This idle power consumption is due to the fact that 5G devices must perform regular measurements and check for potential paging messages.

[0046] In order to reduce the power consumption of the terminal device, the NR system introduces a low-power wake-up module and LP-WUS. The low-power wake-up module is also called a low-power wake-up receiver (LP-WUR) or a low-power wake-up radio (LP-WUR). The receiver can also be called a receiver. Exemplarily, when the terminal device is idle, the main communication module / receiver can be turned off or set to a deep sleep state, and the LP-WUS is only monitored through the LP-WUR, thereby achieving the purpose of reducing the power consumption of the terminal device. The main communication module / receiver of the terminal device can also be called the main radio (MR), and correspondingly, the low-power wake-up module can also be referred to as LR. When the MR is awakened, the terminal device can enter the radio resource control (RRC) connection state. The LP-WUR of the terminal device can be turned on continuously to receive the LP-WUS. Therefore, the LP-WUR can be independent of the 5G device, that is, the 5G device can be in a closed state when the LP-WUR is active and searching for potential LP-WUS. In order to ensure the low power consumption performance of terminal equipment, LP-WUS needs to be embedded in relevant communication systems (e.g., NR systems).

[0047] In some embodiments, LP-WUS can support a bandwidth of 5MHz-20MHz. When LP-WUS is embedded in a related communication system, the main communication module (or MR) and the low power wake-up module (LP-WUR or LR) on the terminal device side can be two modules or integrated into one module. Among them, LP-WUR can support multiple receiver architectures. Figures 2 to 4 Taking the three receiver architectures in as examples, LP-WUR is illustrated.

[0048] Figure 2 It is a schematic structural diagram of a LP-WUR based on radio frequency (RF) envelope detection. Figure 2The receiver architecture shown includes a matching network 201, an RF bandpass filter (BPF) 202, an RF low noise amplifier (LNA) 203, an RF envelope detector 204, a baseband (BB) asymmetric processing (AMP) 205, a BB low pass filter (LPF) 206, a 1-bit or multi-bit analog-to-digital converter (ADC) 207 and a digital BB processing 208.

[0049] exist Figure 2 In the architecture shown, the RF signal is directly converted to a baseband signal through an RF envelope detector. Since there is no local oscillator (LO) and phase-locked loop (PLL), relatively low power consumption can be achieved. Optionally, the architecture may include a 1-bit or multi-bit ADC, an RF LNA and / or a BB AMP, a high-Q matching network and / or an RF BPF and / or a BB LPF. Optionally, in order to support multiple frequency bands and / or carriers, multiple high-Q matching networks and / or RF BPFs or multiple off-chip components may be required to suppress adjacent channel interference or interference from traditional NR signals and / or other LP-WUS on adjacent subcarriers, and support frequency band and / or carrier tuning.

[0050] Figure 3 A schematic structural diagram of a LP-WUR based on a heterodyne architecture with intermediate frequency (IF) envelope detection is shown. Figure 3 The receiver architecture shown includes a matching network 301 , an RF BPF 302 , an RF LNA 303 , a mixer 304 , an LO 305 , an IF AMP 306 , an IF BPF 307 , an IF envelope detector 308 , a BB AMP 309 , a BB LPF 310 , a 1-bit or multi-bit ADC 311 , and a digital BB processing 312 .

[0051] exist Figure 3In the architecture shown, the RF signal is passed through an RF mixer with an LO to convert it to an intermediate frequency (IF) signal. The IF signal is converted to a baseband signal by IF envelope detection. Depending on the design, there may be one or more intermediate frequency stages to achieve lower power consumption by relaxing the accuracy and stability requirements of the LO. The architecture can apply a 1-bit or multi-bit ADC. High-Q matching networks and / or RF BPFs and / or IF BPFs (and / or BB LPFs) can be used to suppress adjacent channel interference or interference from traditional NR signals and / or other LP-WUS on adjacent subcarriers. Optionally, the architecture can apply some components to improve sensitivity, such as RFLNAs and / or IF AMPs and / or BB AMPs. Optionally, the architecture can achieve band and / or carrier tuning by tuning the LO frequency.

[0052] Figure 4 A schematic structural diagram of a LP-WUR based on a homodyne or zero-IF architecture with baseband (BB) envelope detection is shown. Figure 4 The receiver architecture shown includes a matching network 401 , an RF BPF 402 , an RF LNA 403 , a mixer 404 , an LO 405 , a BB AMP 406 , a BB LPF / BPF 407 , a 1-bit or multi-bit ADC 408 , and a digital BB processing 409 .

[0053] exist Figure 4 In the architecture shown, band and / or carrier tuning can be achieved by tuning the LO frequency. Using a BBBPF / LPF instead of a high-Q matching network and / or RF BPF can more effectively and simply suppress adjacent channel interference or interference from traditional NR signals and / or other LP-WUS on adjacent subcarriers. RF LNA can be applied to improve sensitivity. Baseband envelope detection (not shown in the figure) can be done in the analog domain (before ADC) or in the digital domain (after ADC).

[0054] According to the design architecture of LP-WUR, LP-WUS can be deployed only in some frequency bands / carriers. For terminal devices, deploying LP-WUS only in certain frequency bands / carriers can help reduce the cost of LP-WUR. Due to the limited dynamic range of terminal devices, different RF modules may be required to support different frequency bands (such as Figures 2 to 4 Limited frequency bands can reduce costs. For the network side, deploying LP-WUS only in certain frequency bands / carriers helps reduce system overhead. Therefore, it is attractive to allow the number of frequency bands / carriers supported by LP-WUR to be smaller than the number of frequency bands / carriers supported by MR.

[0055] In some embodiments, for a terminal device in idle / inactive mode, the cell reselection of the terminal device is not controlled by a network device (e.g., gNB), and therefore, the terminal device can freely select the frequency band / carrier to reside in.

[0056] Combination of the above Figures 2 to 4 A variety of LP-WUR architectures are introduced. All LP-WUR architectures can be applied to on-off keying (OOK) modulation. Some architectures can also be applied to other modulations, such as frequency-shift keying (FSK).

[0057] OOK is a well-known modulation scheme. OOK can allow low-power receiver implementations, i.e., envelope / energy detection. OOK is a special case of amplitude shift keying (ASK). OOK has only two amplitudes, ON and OFF. When applied to multi-carrier (MC) systems such as orthogonal frequency division multiplexing (OFDM), OOK is also called multi-carrier OOK because the ON and OFF signals usually span multiple subcarriers.

[0058] In some embodiments, in an OFDM-based MC-OOK system, a network node may perform waveform generation of multi-carrier amplitude shift keying (MC-ASK) using coded bits to generate a low power wake-up signal (LP-WUS).

[0059] The above article introduces a variety of LP-WUR architectures and LP-WUS generation methods. When the network device sends LP-WUS, how the LP-WUR in the terminal device receives LP-WUS and how to perform paging detection are issues that need to be resolved.

[0060] As an example, when a terminal device performs paging detection based on the LP-WUS mechanism, how to determine the paging timing for paging detection is a problem that needs to be considered. For example, whether the determination of the paging timing needs to be associated with the reception timing of the LP-WUS and how to associate the reception timing of the LP-WUS need to be studied.

[0061] Based on this, an embodiment of the present application proposes a method for wireless communication. Through this method, after receiving the first wake-up signal, the terminal device (e.g., UE) can determine the paging timing for paging detection according to the reception timing of the first wake-up signal and / or the load of the cell where the terminal device is located. It can be seen that the wireless communication method proposed in the embodiment of the present application uses a dynamically configured paging timing in paging to improve paging efficiency.

[0062] For ease of understanding, the following Figure 5 The method proposed in the embodiment of the present application is described in detail. Figure 5 It is introduced from the perspective of the interaction between the first terminal device and the network device.

[0063] The first terminal device is any communication terminal that can receive the wake-up signal, which is not limited here. In some embodiments, the first terminal device can be in an idle state or an inactive state. For example, the first terminal device can be a UE in RRC idle (RRC_IDLE) / RRC inactive (RRC_INACTIVE) mode. In some embodiments, the first terminal device can be in a connected state (CONNECTED).

[0064] In some embodiments, the first terminal device is a communication terminal in the Internet of Things. The service cell where the terminal device is located can be an NTN cell or a terrestrial network (TN) cell.

[0065] The first terminal device may include a first communication module and a second communication module. Exemplarily, the first terminal device may include two independent communication modules to save power consumption. The first communication module is independent of the second communication module and may also be considered to be independent of the first terminal device. Exemplarily, the first communication module and the second communication module in the first terminal device may be integrated together, but the operating state and / or shutdown state of the two communication modules may be set separately.

[0066] As an example, the first communication module and the second communication module may be in different states respectively. For example, when the second communication module is in a closed state, the first communication module may be in an active state of searching for a wake-up signal.

[0067] In some embodiments, the first communication module and the second communication module respectively perform different functions to reduce the power consumption of the first terminal device. The first communication module receives a first wake-up signal for waking up the second communication module, and the second communication module is used to perform paging detection.

[0068] As an example, the first communication module is a low-power / low-power signal receiving module, and the second communication module is a main communication module of the first terminal device. For example, the first communication module belongs to LP-WUR, and the second communication module belongs to MR. For another example, the first communication module is a low-power wake-up receiver (WUR), and the second communication module is MR.

[0069] As an example, the first communication module may adopt any of the receiver architectures described above, such as Figures 2 to 4 Any of.

[0070] In some embodiments, the first terminal device may include the LP-WUR or a module with similar functions described above to monitor the LP-WUS. The module for monitoring the LP-WUS is the first communication module.

[0071] In some embodiments, the first terminal device may be one of any group or subgroup of terminal devices.

[0072] In some embodiments, the first terminal device may be one of any terminal device group or subgroup. As an example, the first terminal device may be any terminal device in the first terminal device subgroup. That is, when the first terminal device subgroup includes multiple terminal devices, the first terminal device may be one of the multiple terminal devices. As an example, the first terminal device may be any terminal device in the first terminal device group. The first terminal device group may be divided into multiple terminal device subgroups. The first terminal device subgroup to which the first terminal device belongs may be configured or may change dynamically.

[0073] As an example, the first terminal device group may be some or all terminal devices in an idle or inactive state in a certain area. The multiple terminal devices in the first terminal device group may be divided based on different characteristics to determine multiple device subgroups, which is not limited here.

[0074] Exemplarily, the plurality of terminal device subgroups may be determined based on a wake-up delay of a main communication module of the terminal device. Exemplarily, the plurality of terminal device subgroups may also be determined based on a service type or service priority of the terminal device.

[0075] The network device may provide services for the cell where the first terminal device is located. The network device may be any of the network devices or core network devices described above, and is not limited here. For example, the network device may be any of the base stations described above.

[0076] In some embodiments, the service cell where the first terminal device is located is a cell or a microcell for which the network device can provide services, which is not limited here.

[0077] In some embodiments, the network device may be a communication device supporting the LP-WUS function. For example, the network device may periodically send the LP-WUS to wake up the terminal device. For example, the network device may implement an energy-saving configuration in which the LP-WUS is associated with the PO.

[0078] As an example, the cell served by the network device is an NTN cell. For example, the network device may be a satellite in the NTN that covers the area where the terminal device is located, or may be a ground gateway or ground network device in the NTN that communicates with the satellite.

[0079] In some embodiments, the terminal device and the network device may be relative. For example, relative to the network device, the relay device may also be referred to as the terminal device. For example, relative to the terminal device, the relay device may also be referred to as the network device.

[0080] In some embodiments, the network device may send a paging message to all terminal devices in the serving cell. When the network device is an access network device such as a base station, the network device may directly send a paging message or receive a paging message sent by the core network. When the network device is a core network device, the network device may send a paging message to the access network device so that the access network device can send a paging message to the terminal device.

[0081] See also Figure 5 In step S510, the first terminal device receives a first wake-up signal sent by the network device. The first wake-up signal may be the LP-WUS described above or a signal with a similar function to the LP-WUS. For simplicity, the following text takes the LP-WUS as an example for introduction.

[0082] In some embodiments, the first wake-up signal is a LP-WUS. A LP-WUS can be used to indicate whether one or more terminal devices are awakened. Multiple terminal devices awakened by a LP-WUS belong to a terminal device group or a terminal device subgroup.

[0083] As an example, the first wake-up signal may be used for all terminal devices in the first terminal device subgroup.

[0084] The first terminal device can receive the first wake-up signal through the first communication module, so the first communication module is in an active state. In some embodiments, the first communication module can only be used to receive the first wake-up signal, thereby reducing the power consumption of the first terminal device.

[0085] The first wake-up signal is a wake-up signal corresponding to the first terminal device, that is, the first wake-up signal can be used to indicate whether the first terminal device or some modules in the first terminal device are awakened. Whether the first terminal device or some modules in the first terminal device are awakened can refer to converting the communication module from an off state to an active state, or can refer to triggering the communication module to perform paging detection (or monitoring).

[0086] The first wake-up signal is used to wake up the second communication module in the first terminal device. It should be understood that since the first communication module can be independent of the first terminal device, the awakening of the second communication module can also be referred to as the awakening of the first terminal device. Before receiving the first wake-up signal, the second communication module is in a closed state. The first terminal device can determine whether to wake up the second communication module based on the first wake-up signal. In some embodiments, the first wake-up signal can also be used to wake up other modules in the first terminal device except the second communication module.

[0087] In some embodiments, when the first wake-up signal indicates that the first terminal device needs to be woken up, the first wake-up signal can be used to wake up a communication module of the first terminal device that performs paging detection. For example, the first wake-up signal is used to wake up a main communication module that performs paging detection.

[0088] The first terminal device may receive the first wake-up signal at the first opportunity. That is, the first opportunity is the reception opportunity of the first wake-up signal. The network device may send the first wake-up signal at the first opportunity or at the time domain position corresponding to the first opportunity. The time domain corresponding to the first opportunity is mainly for scenarios with long communication delays. The first opportunity may be one of multiple opportunities for receiving / detecting LP-WUS.

[0089] Optionally, the first occasion may be one or more wake-up occasions (LP-WUS occasions, LO) or one or more monitoring occasions (monitor occasions, MO). The wake-up occasion may also be referred to as an LP-WUS occasion; and the monitoring occasion may also be referred to as an LP-WUS monitoring occasion.

[0090] Optionally, the first timing may be a timing among multiple timings for the first terminal device to detect LP-WUS, or may be one of multiple timings for the first terminal device to detect LP-WUS.

[0091] The first terminal device receives the first wake-up signal at the first opportunity in order to perform paging detection. When the first opportunity is the wake-up opportunity / monitoring opportunity, the first terminal device can perform paging detection at the paging occasion (pagingoccasion, PO) after the first opportunity. Therefore, the periodic configuration of the wake-up opportunity / monitoring opportunity can be determined in combination with the discontinuous reception (DRX) mechanism associated with the PO.

[0092] In some embodiments, the paging occasion may be a monitoring opportunity of a physical downlink control channel (PDCCH). The paging occasion may consist of multiple time slots.

[0093] As an example, a paging occasion may include S synchronization signal block (SSB) beams. The paging message sent on each SSB beam may be exactly the same or different. S may be indicated by a system information block (SIB). For example, S may be indicated or determined by ssb-PositionsInBurst in a SIB1 message.

[0094] It should be understood that in the embodiment of the present application, SSB can also represent a synchronization signal / physical broadcast channel block.

[0095] In some embodiments, when the period based on the wake-up opportunity / monitoring opportunity can be configured separately from the DRX cycle, multiple wake-up opportunities / monitoring opportunities can be mapped to a single paging opportunity. In this scenario, it is possible to design more frequent LP-WUS monitoring opportunities while maintaining the same DRX cycle. In other words, the terminal device can receive LP-WUS more frequently without shortening the DRX cycle.

[0096] In some embodiments, the first terminal device needs to wake up the second communication module after receiving the first wake-up signal to perform paging detection. Considering the wake-up time of the second communication module, the paging time of the first terminal device is not near the specific wake-up time / monitoring time (first time), but the wake-up time / monitoring time can be used to trigger the first terminal device to monitor the paging time.

[0097] As an example, the wake-up time of a terminal device can also be called wake-up delay or wake-up duration. Different terminal devices can have different wake-up times, mainly due to hardware characteristics, power optimization strategies, network conditions, and design goals of the terminal device itself. For example, the processor speeds of different terminal devices are different, and the wake-up time will also be different: a high-performance processor may enter the active state faster than a low-performance processor. For example, the speed of memory and storage also affects the wake-up time: high-speed memory can speed up the recovery from low-power states. For example, some terminal devices may adopt stricter battery management strategies to extend battery life, which may result in longer wake-up times. For example, different terminal devices may support different levels of low-power modes, and deeper low-power modes (such as longer sleep time) may require more time to wake up. For example, the base station (eNB or gNB) may configure different wake-up times and DRX cycles for different terminal devices based on network load and coverage. In areas with weak signals, terminal devices may require more time for signal synchronization and recovery, resulting in longer wake-up times.

[0098] In step S520, the first terminal device determines the first paging opportunity for paging detection, that is, the first PO, according to the first information. Correspondingly, the network device can also determine the first paging opportunity or the time domain position corresponding to the first paging opportunity according to the same first information. In other words, due to transmission delay, the time domain position of the paging opportunity when the network device sends the paging and the time domain position of the paging opportunity when the terminal device receives the paging will have a certain offset.

[0099] The first terminal device performs paging detection in order to receive a paging message sent by a network device. It should be noted that the first terminal device determining the first paging opportunity may include determining the time domain position or index of the first paging opportunity, and may also include determining the time domain range of the first paging opportunity.

[0100] In some embodiments, the first paging opportunity can be a dynamically allocated paging opportunity to facilitate timely paging of the terminal device. Exemplarily, when the cycle based on the wake-up opportunity / monitoring opportunity can be configured separately from the DRX cycle, the network device can consider dynamic paging opportunity allocation. Exemplarily, taking into account the wake-up time of the second communication module, the reception timing of the first wake-up signal can trigger the first terminal device to monitor the dynamic paging opportunity. Exemplarily, the paging opportunity corresponding to the first terminal device is dynamically changing.

[0101] It should be understood that in the embodiment of the present application, the serving cell where the first terminal device is located may also include a statically configured paging occasion. The statically configured paging occasion is, for example, a paging occasion determined by a calculation formula in a related protocol.

[0102] In some embodiments, the service cell where the first terminal device is located may only provide dynamically allocated paging opportunities. For example, in the service cells of some small communication systems or local communication systems, the network equipment may only configure dynamic paging opportunities so that the terminal device can be paged at any time. In these systems, the terminal device can perform paging detection according to the dynamic paging opportunities.

[0103] In some embodiments, the service cell where the first terminal device is located can provide dynamically allocated paging opportunities and statically configured paging opportunities to meet the paging needs of different types of terminal devices or different types of services. That is to say, in the service cell, the network device will configure regular paging opportunities and dynamic paging opportunities. In order to achieve this configuration, the network device can also design a wake-up opportunity / monitoring opportunity for triggering the terminal device to monitor the regular paging opportunity and a wake-up opportunity / monitoring opportunity for triggering the terminal device to monitor the dynamic paging opportunity.

[0104] As an example, in a scenario where the service cell provides regular paging opportunities and dynamic paging opportunities, in addition to configuring a regular paging opportunity (also referred to as a traditional paging opportunity) determined according to the terminal device identification (identity, ID) for the first terminal device, the network device can also configure a dynamic paging opportunity determined based on the reception opportunity of the wake-up signal (for example, a monitoring opportunity) for the first terminal device.

[0105] In the scenario where the serving cell provides a dynamic paging opportunity, by utilizing the dynamic paging opportunity, the first terminal device can effectively receive the first wake-up signal and monitor the first paging opportunity while minimizing unnecessary wake-up delays. In addition, by using the dynamic paging opportunity, basically any terminal device can be paged at any time within the paging cycle.

[0106] As an example, when RAN directly sends a paging message, once the first terminal device wakes up MR (second communication module) to support dynamic paging occasions, RAN can send paging messages multiple times on multiple paging occasions within the paging cycle so that the terminal device can receive paging in time.

[0107] As an example, when the RAN sends a paging message to the terminal device according to the paging sent by the core network, the core network needs to send paging information to the RAN multiple times through multiple paging occasions within the paging cycle to enable dynamic paging occasions.

[0108] The first terminal device may determine the first paging opportunity according to the first information. The first information may include the reception timing of the first wake-up signal and / or the load of the serving cell where the first terminal device is located. It should be understood that the first information may also include other information related to paging.

[0109] In some embodiments, when the first information includes the reception timing of the first wake-up signal, the first terminal device may determine the first paging timing directly according to the reception timing, or may determine the first paging timing in combination with other information, such as configuration parameters of the paging timing.

[0110] As an example, the first paging timing may be determined according to the reception timing of the first wake-up signal and the first paging time window (PTW). The first terminal device may determine the first PTW according to the configuration of the network device. As an implementation, the first PTW may be the most recent PTW corresponding to the first terminal device at the current moment.

[0111] As an example, the first terminal device may determine the time domain range of the first paging opportunity according to the position relationship between the reception timing of the first wake-up signal and the first PTW. The first terminal device may perform paging detection within the time domain range.

[0112] As an implementation method, when the reception timing of the first wake-up signal is before the first PTW, the first paging timing is within the first PTW. For example, after the first terminal device receives the wake-up signal before the first PTW, it can monitor the paging timing within the first PTW. For another example, the first wake-up signal can be monitored outside the PTW. After receiving the LP-WUS, the terminal device can monitor the paging timing in the next PTW. In other words, the terminal device can detect the paging timing in the immediately following PTW cycle to ensure the timeliness of the terminal device service.

[0113] As an implementation method, when the reception timing of the first wake-up signal is within the first PTW, the first paging timing is within the first PTW or the second PTW, and the second PTW is the next time window adjacent to the first PTW. For example, the first wake-up signal can be monitored within the first PTW. After the first terminal device receives the first wake-up signal within the first PTW, the time domain range of the first paging timing can be determined according to the wake-up time or conversion time of the first terminal device.

[0114] In some scenarios, even if the first wake-up signal can be sent and received immediately after the paging arrives (within the first PTW), the first terminal device may need to wait for the next PTW (second PTW) to detect PO because the conversion time is long. In other words, since the remaining time of the first PTW is less than the conversion time, the first paging opportunity is within the second PTW.

[0115] In some scenarios, the first wake-up signal and the first paging opportunity may be located in the same PTW. For example, after the first terminal device receives the first wake-up signal in the first PTW, if the remaining time in the first PTW is greater than the conversion time, the first paging opportunity may be detected in the first PTW.

[0116] As an implementation manner, the first terminal device may detect the first wake-up signal both before and within the first PTW, so as to timely wake up the second communication module for paging detection.

[0117] In some embodiments, the first information may be used to determine a first paging frame (PF) in which the first paging opportunity is located. As an example, after the first paging frame is determined, the first terminal device may further determine the first paging opportunity. As an example, after the first paging frame is determined, the first terminal device may monitor the first paging opportunity in the first paging frame.

[0118] As an embodiment, the first paging frame may belong to a first type of paging frame. The first type of paging frame may be a dynamic paging frame. That is, the first type of paging frame does not belong to a paging frame configured in advance by the network device, but is determined according to parameters such as the paging arrival time, the sending / receiving time of the wake-up signal, and the wake-up time of the terminal device.

[0119] As an example, when the first information includes the reception timing of the first wake-up signal, the first paging frame can be determined according to the system frame corresponding to the reception timing of the first wake-up signal. For example, the first terminal device can determine the paging frame based on the frame in which the first wake-up signal is received, thereby realizing the use of dynamic paging timing.

[0120] As an embodiment, the first paging occasion may belong to a first type of paging occasion. The first type of paging occasion may be a dynamic paging occasion. The static paging occasion corresponding to the first paging occasion may belong to a second type of paging occasion.

[0121] As an example, when the first information includes the reception timing of the first wake-up signal, the first paging timing can be determined according to the time slot corresponding to the reception timing of the first wake-up signal. In other words, the reception timing of the first wake-up signal can be directly used to determine the first paging timing.

[0122] As an embodiment, the first paging frame may belong to the second type of paging frame. The number of paging opportunities included in the second type of paging frame may change dynamically. Exemplarily, when the first information includes the load condition of the serving cell where the first terminal device is located, the number of paging opportunities included in the second type of paging frame may change dynamically according to the load condition. For example, the number of paging opportunities included in the second type of paging frame is determined according to the load of the serving cell in the first time period. The index of the first paging opportunity is determined according to the number of paging opportunities included in the first paging frame.

[0123] As an example, the first time period may be determined according to an instruction of a higher layer. As an example, the first time period may be one or more frames, one or more subframes, or one or more time slots.

[0124] Optionally, the dynamic paging frames belonging to the first and second types of paging frames can be determined according to the calculation formula of the existing paging frames when the dynamic offset is introduced. For example, when calculating the system frame number (SFN) of the dynamic paging frame, the terminal equipment ID (UE ID) can be used to calculate the system frame number (SFN) of the dynamic paging frame. ID )Introducing Dynamic PO Offset (DPO offset ). Among them, DPO offset The system frame number SFN determined based on the first opportunity LO The lower limit of the MR ramp-up (R U offset ) is determined. Optionally, SFN LO The lower limit of can be expressed as (SFN–SFN LO –RU offset )×(N div T); where N is the number of paging frames in one paging cycle T.

[0125] As an embodiment, the first paging frame may also belong to a third category paging frame. The third category paging frame is determined according to the static configuration of the serving cell. Although the third category paging frame may be a statically configured paging frame, the paging opportunity in the paging frame may be dynamically configured. For example, the position of the paging opportunity in the third category paging frame changes dynamically. For another example, when the first paging frame belongs to the third category paging frame, the actual number of paging opportunities in the first paging frame may also be determined according to the adjustment factor δ. That is, the number of paging opportunities configured in advance by the network device for the first paging frame remains unchanged, but in the actual process, the network device may dynamically adjust the actual number of paging opportunities in the first paging frame according to the load of the cell.

[0126] It can be seen from the above embodiments that the paging frame type to which the first paging frame in the embodiments of the present application belongs can be any one of the first type of paging frame, the second type of paging frame and the third type of paging frame. The first terminal device can determine the type of the first paging frame according to the first information, and then determine the first paging opportunity according to the specific method corresponding to the type of paging frame. The following text will be specifically described in combination with three embodiments.

[0127] In some embodiments, when the first information includes the load of the serving cell where the first terminal device is located, the current load of the serving cell can be used to determine the index of the first paging opportunity. The load of the serving cell is related to one or more of the following information: the maximum number of paging requests of the serving cell; the current number of paging requests of the serving cell; the service type of the serving cell.

[0128] As an example, the maximum number of paging requests of the serving cell may include the maximum number of paging requests that the serving cell can process. The maximum number of paging requests may include paging requests from the core network, and may also include paging requests of the RAN itself.

[0129] As an example, the current number of paging requests of the serving cell may refer to the number of paging requests of the serving cell in the current paging cycle. The number of paging requests may include paging requests from the core network, and may also include paging requests of the RAN itself.

[0130] As an example, the service type of the serving cell can be used as one of the references for the service cell load. For example, when the number of high-priority service types in the serving cell increases, the service cell load increases.

[0131] As an example, the load of the service cell can be divided into two states: high load and low load, to calculate the number of paging opportunities in a paging frame under different loads. Assuming that there are Ns paging opportunities (Ns≥1) in each initial paging frame, the number of paging opportunities in the paging frame can be increased under high load conditions, and the number of paging opportunities in the paging frame can be reduced under low load conditions. Increasing the number of paging opportunities in a paging frame under high load can disperse paging requests. Reducing the number of paging opportunities in a paging frame under low load can reduce unnecessary power consumption. As can be seen from the foregoing, the paging frame in which the number of paging opportunities can be dynamically adjusted is the second type of paging frame.

[0132] Exemplarily, the load of the serving cell can be determined according to the network load factor L. For example, L>50% is set as a high load scenario, and L≤50% is set as a low load scenario. When the initial number of paging occasions of the paging frame is Ns, the number of paging occasions under high load is Ns′ high and the number of paging occasions Ns′ under low load low Can be expressed as:

[0133]

[0134]

[0135] As an implementation manner, the network load factor L may be related to the number of paging requests. L may be the quotient between the current number of paging requests and the maximum number of paging requests of the serving cell, that is, L=current number of paging requests / maximum number of paging requests.

[0136] As another implementation, L may be other values ​​reflecting the cell load, which are set according to the specific conditions of network device coverage.

[0137] Optionally, the adjustment factor δ mentioned above has a certain corresponding relationship with the load factor L. The difference is that δ can be less than 1, greater than 1, or equal to 1; while L can only be less than or equal to 1.

[0138] In the above embodiment, the network device can dynamically adjust the number of paging occasions in each paging frame. This dynamic adjustment mechanism ensures that the network can effectively process more paging requests under high load conditions, and can optimize the power consumption of terminal devices under low load conditions.

[0139] In some embodiments, the first information may also include the wake-up time of the first terminal device or the conversion time of the second communication module. That is, when the first terminal device receives the first wake-up signal and determines the first paging opportunity, it is also necessary to consider the conversion time of the first terminal device from monitoring the wake-up signal to monitoring the paging message. The conversion time may also be the time to wake up the second communication module for paging detection.

[0140] Optionally, the conversion time of the second communication module may include a transition time including first wake-up signal processing, ramp-up of the second communication module waking up from an ultra-deep sleep state, and cell reselection / synchronization.

[0141] As an example, the first paging occasion may be determined according to a reception timing of the first wake-up signal and a switching time of the second communication module.

[0142] As an example, the first information includes a switching time of the second communication module, and the first paging occasion may be one of a plurality of paging occasions. The plurality of paging occasions may be located after the first time domain position. The first time domain position is determined according to a reception timing of the first wake-up signal and the switching time.

[0143] In the above example, the multiple paging occasions may be one or more existing paging occasions defined by the network device, but these existing paging occasions are located after the switching time of the second communication module. It should be noted that the switching time of the second communication module may also be referred to as the switching time of the first terminal device. The switching time may refer to the time when the first terminal device starts paging detection.

[0144] In the above example, the first time domain position T1 of the first paging occasion is the sum of the reception timing T0 of the first wake-up signal and the conversion time t, that is, T1=T0+t.

[0145] For ease of understanding, the following Figure 6 The influence of the switching time of the second communication module on the first paging occasion is schematically illustrated. Figure 6 The processing flow of the network device 610 and the terminal device 620 is mainly introduced. The first communication module included in the terminal device 620 is WUR, and the second communication module is MR. The wake-up signal used to wake up the terminal device 600 is LP-WUS. The dynamic paging occasions configured by the network device 610 for the terminal device 620 include additional paging occasions (additional PO) and legacy paging occasions (legacy PO).

[0146] See also Figure 6 In step S61, the network device 610 receives a paging from the core network, ie, paging arrived.

[0147] In step S62 , the network device 610 waits for a monitoring opportunity of a wake-up signal to send a LP-WUS (waiting for LP-WUS MO).

[0148] In step S63, after receiving the LP-WUS, the WUR of the terminal device 620 executes the wake-up signal processing flow (LP-WUSprocessing). After executing step S63, the wake-up process and synchronization process of the MR are triggered.

[0149] In step S64, the MR of the terminal device 620 performs a ramp-up of the wake-up process.

[0150] In step S65, the MR of the terminal device 620 performs a synchronization (sync) or re-synchronization (re-sync) process.

[0151] In step S66, the network device 610 transmits a paging message in the paging occasion after the MR completes synchronization (step S65) (transmit paging in the PO after sync).

[0152] Depend on Figure 6 It can be seen that for the network device 610, the time between the arrival of the paging in S61 and the sending of the paging in the paging occasion is the paging latency. For the terminal device 620, the conversion time includes three processes from step S63 to step S65. When the MR is ready for paging monitoring after synchronization / resynchronization, the terminal device 620 can immediately monitor the dynamic paging occasion, and the network device 610 can send the paging in the dynamic paging occasion to reduce latency.

[0153] Combination of the above Figure 5 and Figure 6 A plurality of methods for determining a dynamic paging occasion (first paging occasion) are introduced. In these methods, the paging frame in which the first paging occasion is located may belong to any of three types of paging frames. The following is an exemplary description of the method for determining the first paging occasion through three types of paging frames in combination with three embodiments.

[0154] The first paging frame in Example 1 belongs to the first type of paging frame. The system frame number of the first paging frame can be determined according to the frame number of the system frame corresponding to the first wake-up signal reception timing. The system frame number of the first paging frame can also be determined according to the frame number corresponding to the conversion time of the second communication module (or the first terminal device).

[0155] As an example, the frame number of the first paging frame may be the sum of the frame number of the system frame in which the first terminal device receives the first wake-up signal and the frame number corresponding to the conversion time of the second communication module.

[0156] The first paging frame in Embodiment 2 belongs to the second type of paging frame. The number of paging opportunities in the second type of paging frame changes dynamically. In this embodiment, the second type of paging frame can also be determined in the manner of a conventional paging frame, except that the number of paging opportunities in the paging frame changes with the load change of the serving cell. The number of paging opportunities dynamically adjusted according to the load factor L is Ns′.

[0157] As an example, the system frame number SFN of the first paging frame satisfies the formula (SFN+PF offset )mod T=(T divN)×(UE ID mod N); where T is the paging cycle, T = min (default paging cycle, UE-specific DRX cycle); N is the number of paging frames contained in one T, and one paging frame consists of multiple paging occasions; PF offset is the frame offset of PF; UE ID is the ID of the first terminal device.

[0158] As an example, the number of paging occasions in the first paging frame is Ns′ as mentioned above. When the load of the current serving cell is high, Ns′=Ns′ high; When the load of the current serving cell is low, Ns′=Ns′ low .

[0159] As an example, the index i of the first paging occasion s for:

[0160] i s =floor(UE ID / N)modNs′;

[0161] Among them, UE ID is the identifier of the first terminal device, N represents the number of paging frames in a cycle, and Ns′ represents the number of paging occasions included in the first paging frame.

[0162] The first paging frame in Example 3 belongs to the third type of paging frame. The third type of paging frame is a paging frame statically configured by the network device. Therefore, the system frame number of the first paging frame can be determined according to the method in Example 2.

[0163] As an example, the actual number of paging occasions in the third type of paging frame is related to the adjustment factor δ. For example, when the initial number of paging occasions is Ns, a paging frame in the third type of paging frame may include δ×Ns paging occasions. The adjustment factor δ is a rational number and may vary with changes in the current load of the cell or different service types.

[0164] As an example, the index i of the first paging occasion s It can be expressed as:

[0165] i s =floor(UE ID / N)mod(δ×Ns);

[0166] Among them, UE ID is the identifier of the first terminal device, N represents the number of paging frames in one cycle, Ns represents the number of paging occasions in the third type of paging frame, and δ represents an adjustment factor related to the load of the serving cell.

[0167] Combination of the above Figures 1 to 6 , describes in detail the method embodiment of the present application. Figures 7 to 9 , describes the device embodiment of the present application in detail. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, so the parts not described in detail can refer to the previous method embodiment.

[0168] Figure 7 700 is a schematic block diagram of a device for wireless communication according to an embodiment of the present application. The device 700 may be any of the first terminal devices described above. Figure 7The illustrated apparatus 700 includes a first communication module 710 and a second communication module 720 .

[0169] The first communication module 710 may be configured to receive a first wake-up signal, where the first wake-up signal is used to wake up the second communication module.

[0170] The second communication module 720 can be used to determine the first paging time for paging detection based on the first information; wherein, the first wake-up signal is received by the first communication module, the paging detection is performed by the second communication module, and the first information includes the reception time of the first wake-up signal, and / or the load of the service cell where the first terminal device is located.

[0171] Optionally, the first information includes a reception timing of the first wake-up signal, and the first paging timing is determined according to the reception timing of the first wake-up signal and the first paging time window.

[0172] Optionally, when the first wake-up signal is received before the first paging time window, the first paging time window is within the first paging time window; when the first wake-up signal is received within the first paging time window, the first paging time window is within the first paging time window or the second paging time window, and the second paging time window is the next time window adjacent to the first paging time window.

[0173] Optionally, the first paging frame where the first paging opportunity is located belongs to a first type of paging frame, and the time domain position of the first type of paging frame is related to the timing when the terminal device receives the wake-up signal.

[0174] Optionally, the first information includes a reception timing of the first wake-up signal, and the first paging frame is determined according to a system frame corresponding to the reception timing of the first wake-up signal, or the first paging timing is determined according to a time slot corresponding to the reception timing of the first wake-up signal.

[0175] Optionally, the first information includes a load of a service cell where the first terminal device is located, and the load is related to one or more of the following information: a maximum number of paging requests of the service cell; a current number of paging requests of the service cell; and a service type of the service cell.

[0176] Optionally, the first paging frame where the first paging opportunity is located belongs to a second type of paging frame, the number of paging opportunities included in the second type of paging frame is determined according to the load of the serving cell in the first time period, and the index of the first paging opportunity is determined according to the number of paging opportunities included in the first paging frame.

[0177] Optionally, the index i of the first paging occasion s for:

[0178] i s =floor(UE ID / N)modNs′;

[0179] Among them, UE ID is the identifier of the first terminal device, N represents the number of paging frames in a cycle, and Ns′ represents the number of paging occasions included in the first paging frame.

[0180] Optionally, the first paging frame in which the first paging opportunity is located belongs to a third type of paging frame, and the third type of paging frame is determined according to the static configuration of the serving cell. The index i of the first paging opportunity is s for:

[0181] i s =floor(UE ID / N)mod(δ×Ns);

[0182] Among them, UE ID is the identifier of the first terminal device, N represents the number of paging frames in one cycle, Ns represents the number of paging occasions in the third type of paging frame, and δ represents an adjustment factor related to the load of the serving cell.

[0183] Optionally, the first information also includes a switching time of the second communication module, the first paging occasion is one of multiple paging occasions, the multiple paging occasions are located after the first time domain position, and the first time domain position is determined according to the reception timing of the first wake-up signal and the switching time.

[0184] Figure 8 800 is a schematic block diagram of another device for wireless communication according to an embodiment of the present application. The device 800 may be any network device described above. Figure 8 The illustrated apparatus 800 includes a sending module 810 and a determining module 820 .

[0185] The sending module 810 may be used to send a first wake-up signal to the first terminal device, where the first wake-up signal is used to wake up the second communication module of the first terminal device.

[0186] Determination module 820 can be used to determine the first paging time for sending a paging message to the first terminal device based on the first information; wherein the first terminal device includes a first communication module and a second communication module, the first wake-up signal is received by the first communication module, and the paging message is detected by the second communication module, and the first information includes the reception time of the first wake-up signal, and / or the load of the service cell where the first terminal device is located.

[0187] Optionally, the first information includes a reception timing of the first wake-up signal, and the first paging timing is determined according to the reception timing of the first wake-up signal and the first paging time window.

[0188] Optionally, when the first wake-up signal is received before the first paging time window, the first paging time window is within the first paging time window; when the first wake-up signal is received within the first paging time window, the first paging time window is within the first paging time window or the second paging time window, and the second paging time window is the next time window adjacent to the first paging time window.

[0189] Optionally, the first paging frame where the first paging opportunity is located belongs to a first type of paging frame, and the time domain position of the first type of paging frame is related to the timing when the terminal device receives the wake-up signal.

[0190] Optionally, the first information includes a reception timing of the first wake-up signal, and the first paging frame is determined according to a system frame corresponding to the reception timing of the first wake-up signal, or the first paging timing is determined according to a time slot corresponding to the reception timing of the first wake-up signal.

[0191] Optionally, the first information includes a load of a service cell where the first terminal device is located, and the load is related to one or more of the following information: a maximum number of paging requests of the service cell; a current number of paging requests of the service cell; and a service type of the service cell.

[0192] Optionally, the first paging frame where the first paging opportunity is located belongs to a second type of paging frame, the number of paging opportunities included in the second type of paging frame is determined according to the load of the serving cell in the first time period, and the index of the first paging opportunity is determined according to the number of paging opportunities included in the first paging frame.

[0193] Optionally, the index i of the first paging occasion s for:

[0194] i s =floor(UE ID / N)modNs′;

[0195] Among them, UE ID is the identifier of the first terminal device, N represents the number of paging frames in a cycle, and Ns′ represents the number of paging occasions included in the first paging frame.

[0196] Optionally, the first paging frame in which the first paging opportunity is located belongs to a third type of paging frame, and the third type of paging frame is determined according to the static configuration of the serving cell. The index i of the first paging opportunity is s for:

[0197] i s =floor(UE ID / N)mod(δ×Ns);

[0198] Among them, UE IDis the identifier of the first terminal device, N represents the number of paging frames in one cycle, Ns represents the number of paging occasions in the third type of paging frame, and δ represents an adjustment factor related to the load of the serving cell.

[0199] Optionally, the first information also includes a switching time of the second communication module, the first paging occasion is one of multiple paging occasions, the multiple paging occasions are located after the first time domain position, and the first time domain position is determined according to the reception timing of the first wake-up signal and the switching time.

[0200] Fig. 9 Shown is a schematic diagram of the structure of a communication device according to an embodiment of the present application. Fig. 9 The dotted line in the figure indicates that the unit or module is optional. The device 900 can be used to implement the method described in the above method embodiment. The device 900 can be a chip, a terminal device or a network device.

[0201] The device 900 may include one or more processors 910. The processor 910 may support the device 900 to implement the method described in the foregoing method embodiment. The processor 910 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may also 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 gates or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0202] The apparatus 900 may further include one or more memories 920. The memory 920 stores a program, which can be executed by the processor 910, so that the processor 910 executes the method described in the above method embodiment. The memory 920 may be independent of the processor 910 or integrated in the processor 910.

[0203] The apparatus 900 may further include a transceiver 930. The processor 910 may communicate with other devices or chips through the transceiver 930. For example, the processor 910 may transmit and receive data with other devices or chips through the transceiver 930.

[0204] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal device or a network device provided in the present application, and the program enables a computer to execute the method performed by the terminal device or the network device in each embodiment of the present application.

[0205] The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or a data center that includes one or more available media. 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 digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)).

[0206] The embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal device or network device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0207] 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. 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 a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.

[0208] The embodiment of the present application also provides a computer program. The computer program can be applied to the terminal device or network device provided in the embodiment of the present application, and the computer program enables a computer to execute the method executed by the terminal or network device in each embodiment of the present application.

[0209] The terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0210] In the embodiments of the present application, the "indication" mentioned can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0211] In the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.

[0212] In the embodiments of the present application, "pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0213] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0214] In the embodiments of the present application, determining B based on A does not mean determining B only based on A. B can also be determined based on A and / or other information.

[0215] In the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0216] In the embodiments of the present application, the sequence numbers of the above processes do not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0217] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0218] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0219] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0220] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for wireless communication, characterized in that: The method is applied to a first terminal device including a first communication module and a second communication module, and the method includes: receiving a first wake-up signal, where the first wake-up signal is used to wake up the second communication module; Determine a first paging opportunity for performing paging detection according to the first information; The first wake-up signal is received by the first communication module, the paging detection is performed by the second communication module, and the first information includes the reception timing of the first wake-up signal and / or the load of the service cell where the first terminal device is located.

2. The method according to claim 1, characterized in that The first information includes a reception timing of the first wake-up signal, and the first paging timing is determined according to the reception timing of the first wake-up signal and a first paging time window.

3. The method according to claim 2, characterized in that When the reception timing of the first wake-up signal is before the first paging time window, the first paging timing is within the first paging time window; when the reception timing of the first wake-up signal is within the first paging time window, the first paging timing is within the first paging time window or the second paging time window, and the second paging time window is the next time window adjacent to the first paging time window.

4. The method according to any one of claims 1 to 3, characterized in that The first paging frame where the first paging opportunity is located belongs to a first type of paging frame, and the time domain position of the first type of paging frame is related to the timing when the terminal device receives the wake-up signal.

5. The method according to claim 4, characterized in that The first information includes a reception timing of the first wake-up signal, the first paging frame is determined according to a system frame corresponding to the reception timing of the first wake-up signal, or the first paging timing is determined according to a time slot corresponding to the reception timing of the first wake-up signal.

6. The method according to claim 1, characterized in that The first information includes a load of a serving cell where the first terminal device is located, and the load is related to one or more of the following information: The maximum number of paging requests for the serving cell; The current number of paging requests of the serving cell; The service type of the serving cell.

7. The method according to claim 6, characterized in that The first paging frame where the first paging opportunity is located belongs to a second type of paging frame, the number of paging opportunities included in the second type of paging frame is determined according to the load of the serving cell in the first time period, and the index of the first paging opportunity is determined according to the number of paging opportunities included in the first paging frame.

8. The method according to claim 7, characterized in that The index i of the first paging occasion s for: i s =floor(UE ID / N)modNs′; Among them, UE ID is the identifier of the first terminal device, N represents the number of paging frames in a cycle, and Ns′ represents the number of paging opportunities included in the first paging frame.

9. The method according to claim 6, characterized in that The first paging frame in which the first paging opportunity is located belongs to a third type of paging frame, and the third type of paging frame is determined according to the static configuration of the serving cell. The index i of the first paging opportunity is s for: i s =floor(UE ID / N)mod(δ×Ns); Among them, UE ID is the identifier of the first terminal device, N represents the number of paging frames in a cycle, Ns represents the number of paging occasions in the third type of paging frame, and δ represents an adjustment factor related to the load of the service cell.

10. The method according to any one of claims 1 to 9, characterized in that The first information also includes a switching time of the second communication module, the first paging occasion is one of multiple paging occasions, the multiple paging occasions are located after a first time domain position, and the first time domain position is determined according to a reception timing of the first wake-up signal and the switching time.

11. A method for wireless communication, characterized in that: include: Sending a first wake-up signal to a first terminal device, where the first wake-up signal is used to wake up a second communication module of the first terminal device; Determine a first paging opportunity for sending a paging message to the first terminal device according to the first information; Among them, the first terminal device includes a first communication module and a second communication module, the first wake-up signal is received by the first communication module, the paging message is detected by the second communication module, and the first information includes the reception timing of the first wake-up signal and / or the load of the service cell where the first terminal device is located.

12. The method according to claim 11, characterized in that The first information includes a reception timing of the first wake-up signal, and the first paging timing is determined according to the reception timing of the first wake-up signal and a first paging time window.

13. The method according to claim 12, characterized in that When the reception timing of the first wake-up signal is before the first paging time window, the first paging timing is within the first paging time window; when the reception timing of the first wake-up signal is within the first paging time window, the first paging timing is within the first paging time window or the second paging time window, and the second paging time window is the next time window adjacent to the first paging time window.

14. The method according to any one of claims 11 to 13, characterized in that The first paging frame where the first paging opportunity is located belongs to a first type of paging frame, and the time domain position of the first type of paging frame is related to the timing when the terminal device receives the wake-up signal.

15. The method according to claim 14, characterized in that The first information includes a reception timing of the first wake-up signal, the first paging frame is determined according to a system frame corresponding to the reception timing of the first wake-up signal, or the first paging timing is determined according to a time slot corresponding to the reception timing of the first wake-up signal.

16. The method according to claim 11, characterized in that The first information includes a load of a serving cell where the first terminal device is located, and the load is related to one or more of the following information: The maximum number of paging requests for the serving cell; The current number of paging requests of the serving cell; The service type of the serving cell.

17. The method according to claim 16, characterized in that The first paging frame where the first paging opportunity is located belongs to a second type of paging frame, the number of paging opportunities included in the second type of paging frame is determined according to the load of the serving cell in the first time period, and the index of the first paging opportunity is determined according to the number of paging opportunities included in the first paging frame.

18. The method according to claim 17, characterized in that The index i of the first paging occasion s for: i s =floor(UE ID / N)modNs′; Among them, UE ID is the identifier of the first terminal device, N represents the number of paging frames in a cycle, and Ns′ represents the number of paging opportunities included in the first paging frame.

19. The method according to claim 16, characterized in that The first paging frame in which the first paging opportunity is located belongs to a third type of paging frame, and the third type of paging frame is determined according to the static configuration of the serving cell. The index i of the first paging opportunity is s for: i s =floor(UE ID / N)mod(δ×Ns); Among them, UE ID is the identifier of the first terminal device, N represents the number of paging frames in a cycle, Ns represents the number of paging occasions in the third type of paging frame, and δ represents an adjustment factor related to the load of the service cell.

20. The method according to any one of claims 11 to 19, characterized in that The first information also includes a switching time of the second communication module, the first paging occasion is one of multiple paging occasions, the multiple paging occasions are located after a first time domain position, and the first time domain position is determined according to a reception timing of the first wake-up signal and the switching time.

21. A device for wireless communication, characterized in that: The device is a first terminal device, and the device includes: A first communication module, configured to receive a first wake-up signal, where the first wake-up signal is used to wake up the second communication module; A second communication module, used to determine a first paging opportunity for performing paging detection according to the first information; The first wake-up signal is received by the first communication module, the paging detection is performed by the second communication module, and the first information includes the reception timing of the first wake-up signal and / or the load of the service cell where the first terminal device is located.

22. The device according to claim 21, characterized in that The first information includes a reception timing of the first wake-up signal, and the first paging timing is determined according to the reception timing of the first wake-up signal and a first paging time window.

23. The device according to claim 22, characterized in that When the reception timing of the first wake-up signal is before the first paging time window, the first paging timing is within the first paging time window; when the reception timing of the first wake-up signal is within the first paging time window, the first paging timing is within the first paging time window or the second paging time window, and the second paging time window is the next time window adjacent to the first paging time window.

24. The device according to any one of claims 21 to 23, characterized in that The first paging frame where the first paging opportunity is located belongs to a first type of paging frame, and the time domain position of the first type of paging frame is related to the timing when the terminal device receives the wake-up signal.

25. The device according to claim 24, characterized in that The first information includes a reception timing of the first wake-up signal, the first paging frame is determined according to a system frame corresponding to the reception timing of the first wake-up signal, or the first paging timing is determined according to a time slot corresponding to the reception timing of the first wake-up signal.

26. The device according to claim 21, characterized in that The first information includes a load of a serving cell where the first terminal device is located, and the load is related to one or more of the following information: The maximum number of paging requests for the serving cell; The current number of paging requests of the serving cell; The service type of the serving cell.

27. The device according to claim 26, characterized in that The first paging frame where the first paging opportunity is located belongs to a second type of paging frame, the number of paging opportunities included in the second type of paging frame is determined according to the load of the serving cell in the first time period, and the index of the first paging opportunity is determined according to the number of paging opportunities included in the first paging frame.

28. The device according to claim 27, characterized in that The index i of the first paging occasion s for: i s =floor(UE ID / N)modNs′; Among them, UE ID is the identifier of the first terminal device, N represents the number of paging frames in a cycle, and Ns′ represents the number of paging opportunities included in the first paging frame.

29. The device according to claim 26, characterized in that The first paging frame in which the first paging opportunity is located belongs to a third type of paging frame, and the third type of paging frame is determined according to the static configuration of the serving cell. The index i of the first paging opportunity is s for: i s =floor(UE ID / N)mod(δ×Ns); Among them, UE ID is the identifier of the first terminal device, N represents the number of paging frames in a cycle, Ns represents the number of paging occasions in the third type of paging frame, and δ represents an adjustment factor related to the load of the service cell.

30. The device according to any one of claims 21 to 29, characterized in that The first information also includes a switching time of the second communication module, the first paging occasion is one of multiple paging occasions, the multiple paging occasions are located after a first time domain position, and the first time domain position is determined according to a reception timing of the first wake-up signal and the switching time.

31. A device for wireless communication, characterized in that: The device is a network device, and the device includes: A sending module, used to send a first wake-up signal to a first terminal device, where the first wake-up signal is used to wake up a second communication module of the first terminal device; A determination module, configured to determine a first paging opportunity for sending a paging message to the first terminal device according to the first information; Among them, the first terminal device includes a first communication module and a second communication module, the first wake-up signal is received by the first communication module, the paging message is detected by the second communication module, and the first information includes the reception timing of the first wake-up signal and / or the load of the service cell where the first terminal device is located.

32. The device according to claim 31, characterized in that The first information includes a reception timing of the first wake-up signal, and the first paging timing is determined according to the reception timing of the first wake-up signal and a first paging time window.

33. The device according to claim 32, characterized in that When the reception timing of the first wake-up signal is before the first paging time window, the first paging timing is within the first paging time window; when the reception timing of the first wake-up signal is within the first paging time window, the first paging timing is within the first paging time window or the second paging time window, and the second paging time window is the next time window adjacent to the first paging time window.

34. The device according to any one of claims 31 to 33, characterized in that The first paging frame where the first paging opportunity is located belongs to a first type of paging frame, and the time domain position of the first type of paging frame is related to the timing when the terminal device receives the wake-up signal.

35. The device according to claim 34, characterized in that The first information includes a reception timing of the first wake-up signal, the first paging frame is determined according to a system frame corresponding to the reception timing of the first wake-up signal, or the first paging timing is determined according to a time slot corresponding to the reception timing of the first wake-up signal.

36. The device according to claim 31, characterized in that The first information includes a load of a serving cell where the first terminal device is located, and the load is related to one or more of the following information: The maximum number of paging requests for the serving cell; The current number of paging requests of the serving cell; The service type of the serving cell.

37. The device according to claim 36, characterized in that The first paging frame where the first paging opportunity is located belongs to a second type of paging frame, the number of paging opportunities included in the second type of paging frame is determined according to the load of the serving cell in the first time period, and the index of the first paging opportunity is determined according to the number of paging opportunities included in the first paging frame.

38. The device according to claim 37, characterized in that The index i of the first paging occasion s for: i s =floor(UE ID / N)modNs′; Among them, UE ID is the identifier of the first terminal device, N represents the number of paging frames in a cycle, and Ns′ represents the number of paging opportunities included in the first paging frame.

39. The device according to claim 36, characterized in that The first paging frame in which the first paging opportunity is located belongs to a third type of paging frame, and the third type of paging frame is determined according to the static configuration of the serving cell. The index i of the first paging opportunity is s for: i s =floor(UE ID / N)mod(δ×Ns); Among them, UE ID is the identifier of the first terminal device, N represents the number of paging frames in a cycle, Ns represents the number of paging occasions in the third type of paging frame, and δ represents an adjustment factor related to the load of the service cell.

40. The device according to any one of claims 31 to 39, characterized in that The first information also includes a switching time of the second communication module, the first paging occasion is one of multiple paging occasions, the multiple paging occasions are located after a first time domain position, and the first time domain position is determined according to a reception timing of the first wake-up signal and the switching time.

41. A communication device, characterized in that: The invention comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory to execute the method according to any one of claims 1 to 20.

42. A device, characterized in that The invention comprises a processor, which is used to call a program from a memory to execute the method according to any one of claims 1 to 20.

43. A chip, characterized in that: The device comprises a processor, which is used to call a program from a memory so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 20.

44. A computer-readable storage medium, characterized in that A program is stored thereon, and the program enables a computer to execute the method according to any one of claims 1 to 20.

45. A computer program product, characterized in that The method comprises a program which causes a computer to execute the method according to any one of claims 1 to 20.

46. ​​A computer program, characterized in that The computer program enables a computer to execute the method according to any one of claims 1 to 20.

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