Wireless communication method, terminal device and network device

Abstract

The invention provides a wireless communication method, terminal equipment and network equipment. The wireless communication method comprises the following steps: a first terminal device receives a first channel or a first signal sent by a network device, wherein the first channel or the first signal is used for providing an alarm message;

Description

Wireless communication method, terminal device and network device Technical Field

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

[0002] In certain communication scenarios, terminal devices may be unable to receive messages sent by network devices due to limited downlink coverage, resulting in communication failure. For example, in non-terrestrial network (NTN) systems, limited satellite transmit power can result in a low downlink signal-to-noise ratio (SNR), making it impossible for terminal devices to receive messages sent by satellites, leading to communication failure.

[0003] Summary of the Invention

[0004] The present application provides a wireless communication method, terminal device, and network device. The following introduces various aspects of the present application.

[0005] In a first aspect, a method for wireless communication is provided, comprising: a first terminal device receiving a first channel or a first signal sent by a network device, wherein the first channel or the first signal is used to provide an alarm message.

[0006] In a second aspect, a wireless communication method is provided, comprising: a network device sending a first channel or a first signal to a first terminal device, wherein the first channel or the first signal is used to provide an alarm message.

[0007] According to a third aspect, a terminal device is provided, which is a first terminal device. The terminal device includes: a first receiving module for receiving a first channel or a first signal sent by a network device, wherein the first channel or the first signal is used to provide an alarm message.

[0008] In a fourth aspect, a network device is provided, comprising: a first sending module, configured to send a first channel or a first signal to a first terminal device, wherein the first channel or the first signal is used to provide an alarm message.

[0009] In a fifth aspect, a terminal device is provided, comprising a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the terminal device executes part or all of the steps in the method of the first aspect.

[0010] In the sixth aspect, a network device is provided, comprising a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the network device executes part or all of the steps in the method of the second aspect.

[0011] In a seventh aspect, an embodiment of the present application provides a communication system, which includes the above-mentioned terminal device and / or network device. In another possible design, the system may also include other devices that interact with the terminal device or network device in the solution provided in the embodiment of the present application.

[0012] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program enables a computer to execute part or all of the steps in the methods of the above aspects.

[0013] In a ninth aspect, embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a computer to perform some or all of the steps of the methods described in each of the above aspects. In some implementations, the computer program product may be a software installation package.

[0014] In the tenth aspect, an embodiment of the present application provides a chip, which includes a memory and a processor. The processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects.

[0015] In an embodiment of the present application, the network device can use the first channel or the first signal to provide an alarm message to the first terminal device, which is beneficial for the first terminal device to determine subsequent communication behavior based on the alarm message (for example, whether to move to a location with good signal reception quality to communicate with the network device), thereby helping to improve the communication success rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1A is an exemplary diagram of a system architecture of a wireless communication system to which an embodiment of the present application may be applied.

[0017] FIG1B is another exemplary diagram of a system architecture of a wireless communication system to which embodiments of the present application may be applied.

[0018] FIG1C is another example diagram of the system architecture of a wireless communication system to which the embodiments of the present application may be applied.

[0019] FIG2 is a diagram illustrating an example of the location of a PF within a paging DRX cycle and the location of a PO within the PF.

[0020] FIG3 is a flow chart of a wireless communication method provided in an embodiment of the present application.

[0021] FIG4 is a schematic flow chart of a wireless communication method provided in another embodiment of the present application.

[0022] FIG5 is a flowchart of a wireless communication method provided in yet another embodiment of the present application.

[0023] FIG6 is a flowchart of a wireless communication method provided in yet another embodiment of the present application.

[0024] FIG7 is a flowchart of a wireless communication method provided in yet another embodiment of the present application.

[0025] FIG8 is a flowchart of a wireless communication method provided in yet another embodiment of the present application.

[0026] FIG9 is an example diagram of a possible implementation method for determining the time domain position of the first opportunity provided by an embodiment of the present application.

[0027] FIG10 is a flowchart of a wireless communication method provided in yet another embodiment of the present application.

[0028] FIG11 is a flowchart of a wireless communication method provided in yet another embodiment of the present application.

[0029] FIG12 is a schematic diagram of the structure of the terminal device provided in an embodiment of the present application.

[0030] FIG13 is a schematic diagram of the structure of the network device provided in an embodiment of the present application.

[0031] FIG14 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] Communication system architecture

[0033] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, advanced long term evolution (LTE-A) system, new radio (NR) system, evolution system of NR system, LTE-based access to unlicensed spectrum (LTE-U) system on unlicensed spectrum, NR-based access to unlicensed spectrum (NR-U) system on unlicensed spectrum, NTN system, universal mobile telecommunication system (UMTS), wireless local area networks (WLAN), wireless fidelity (WLAN), etc. fidelity, WiFi), fifth-generation communication (5G) systems or other communication systems, such as future communication systems, such as sixth-generation mobile communication systems, and satellite communication systems.

[0034] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0035] The communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, and a standalone (SA) networking scenario.

[0036] The communication system in the embodiment of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as a dedicated spectrum.

[0037] The embodiments of the present application can be applied to NTN systems as well as terrestrial network (TN) systems. As an example and not a limitation, NTN systems include NR-based NTN systems and IoT-based NTN systems.

[0038] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, where the terminal device 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.

[0039] In an embodiment of the present application, the terminal device may be a station (STATION, ST) in a WLAN, 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 capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a next-generation communication system such as a terminal device in an NR network, or a terminal device in a future-evolved public land mobile network (PLMN) network, etc.

[0040] In the embodiments of the present application, a terminal device may refer to a device that provides voice and / or data connectivity to a user and can be used to connect people, objects, and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiments of the present application may be a mobile phone, a tablet computer (Pad), a laptop computer, a PDA, a mobile internet device (MID), a wearable device, 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 a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc.

[0041] Alternatively, a UE can function as a base station. For example, a UE can act as a dispatching entity, providing sidelink signals between UEs in V2X or D2D applications. For example, a cell phone and a car can communicate with each other using sidelink signals. A cell phone and a smart home device can also communicate without relaying the communication signal through a base station.

[0042] As an example and not a limitation, in an embodiment of the present application, the terminal device may be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0043] In the embodiments of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted; it can also be deployed on the water (such as a ship, etc.); it can also be deployed in the air (such as on an airplane, balloon, and satellite, etc.). In the embodiments of the present application, the terminal device can be fixed or mobile.

[0044] The network device in the embodiments of the present application may be a device for communicating with a terminal device, and may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station may broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, 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, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. The base station may also refer to a communication module, modem or chip provided in the aforementioned device or apparatus. The base station may also be a mobile switching center and a device-to-device D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication device that performs the base station function, a network side device in a 6G network, a device that performs the base station function in a future communication system, etc. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network equipment.

[0045] 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.

[0046] 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.

[0047] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.

[0048] As an example and not a limitation, in an embodiment 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. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. 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.

[0049] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station). The cell can 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.

[0050] For example, Figure 1A is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. As shown in Figure 1A, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or also referred to as 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 within the coverage area.

[0051] Figure 1A exemplarily shows a network device and two terminal devices. In some embodiments of the present application, the communication system 100 may include multiple network devices and each network device may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0052] For example, FIG1B is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application. Referring to FIG1B , a terminal device 1101 and a satellite 1102 are included, and wireless communication can be performed between the terminal device 1101 and the satellite 1102. The network formed between the terminal device 1101 and the satellite 1102 can also be referred to as an NTN. In the architecture of the communication system shown in FIG1B , the satellite 1102 can have the function of a base station, and the terminal device 1101 and the satellite 1102 can communicate directly. In the system architecture, the satellite 1102 can be referred to as a network device. In some embodiments of the present application, a plurality of network devices 1102 may be included in the communication system, and each network device 1102 may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0053] For example, FIG1C is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application. Referring to FIG1C , it includes a terminal device 1201, a satellite 1202, and a base station 1203. Wireless communication can be performed between the terminal device 1201 and the satellite 1202, and communication can be performed between the satellite 1202 and the base station 1203. The network formed between the terminal device 1201, the satellite 1202, and the base station 1203 can also be referred to as an NTN. In the architecture of the communication system shown in FIG1C , the satellite 1202 may not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be transferred through the satellite 1202. In this system architecture, the base station 1203 can be referred to as a network device. In some embodiments of the present application, a plurality of network devices 1203 may be included in the communication system, and each network device 1203 may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0054] It should be noted that Figures 1A-1C are only examples of the system to which this application is applicable. Of course, the method shown in the embodiment of this application can also be applied to other systems, such as 5G communication systems, LTE communication systems, etc., and the embodiment of this application does not make specific limitations on this.

[0055] In some embodiments of the present application, the wireless communication system shown in Figures 1A-1C may also include other network entities such as a mobility management entity (MME) and an access and mobility management function (AMF), but the embodiments of the present application are not limited to this.

[0056] It should be understood that in the embodiments of the present application, a device having a communication function in a network / system may be referred to as a communication device. Taking the communication system 100 shown in FIG1A as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function. The network device 110 and the terminal device 120 may be the specific devices described above and will not be described in detail here. The communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in the embodiments of the present application.

[0057] Paging mechanism / paging process

[0058] In some communication systems (e.g., NR systems, LTE systems), a network device may send paging to a terminal device in a radio resource control (RRC) idle state, an RRC inactive state, or an RRC connected state, wherein the paging process may be triggered by a core network or a base station. The paging process may be used by the network to send a paging message (also referred to as a paging request) to a terminal device in an RRC idle state or an RRC inactive state to page the terminal device, or the paging process may also be used by the network to notify the terminal device of system information updates, or the paging process may also be used by the network to notify the terminal device of alarm messages sent by an earthquake and tsunami warning system (ETWS) and / or a commercial mobile alert system (CMAS). In some embodiments, the network may notify the terminal device of one or more of system information updates, ETWS, and CMAS via a short message. In some embodiments, the terminal device receiving the system information update, ETWS, or CMAS may be a terminal device in any RRC state, such as a terminal device in an RRC connected state.

[0059] Paging may include a physical downlink control channel (PDCCH) scrambled by a paging radio network temporary identifier (P-RNTI) and a physical downlink shared channel (PDSCH) scheduled by the PDCCH. The paging message may be transmitted in the PDSCH, or in other words, the paging message may be carried by the PDSCH. The short message may be transmitted in the PDCCH, or in other words, the short message may be carried by the PDCCH. For example, the short message may be 8 bits of information in the PDCCH.

[0060] In some embodiments, the paging message may be scheduled using downlink control information (DCI) with a cyclic redundancy check (CRC) scrambled by the P-RNTI, for example, DCI1_0 with a CRC scrambled by the P-RNTI.

[0061] For a terminal device in an RRC idle state or an RRC inactive state, there is no other data transmission between the terminal device and the network device. Therefore, to save power, the terminal device can monitor the paging channel discontinuously, that is, the terminal device can adopt a paging discontinuous reception (DRX) mechanism to reduce power consumption. Under the paging DRX mechanism, the terminal device only needs to monitor the paging channel or receive paging messages during one paging occasion (PO) within each paging DRX cycle. In some embodiments, the paging DRX cycle may also be referred to as a paging cycle, a paging DRX cycle, etc.

[0062] The DRX cycle for paging can be determined by the common cycle in the system broadcast and the dedicated cycle configured in the higher-layer signaling (eg, non-access stratum (NAS) signaling). For example, the terminal device takes the minimum cycle of the two as the DRX cycle for paging.

[0063] The PO represents the time at which a paging message may occur. The PO is composed of multiple PDCCH monitoring occasions in the paging search space. In other words, the PO is a set of PDCCH monitoring occasions, which can include multiple time units (e.g., subframes, orthogonal frequency division multiplexing (OFDM) symbols, etc.) used to carry paging DCI.

[0064] PO can be determined by the terminal device based on the received paging parameters. For example, before receiving the paging message, the terminal device can first receive the paging parameters through the system message, and determine the PO in combination with the respective UE_ID. In some embodiments, the terminal device can also determine the frame number of the paging frame (PF) based on the received paging parameters. PF refers to a radio frame (the radio frame can be a fixed 10 milliseconds, for example), which can contain multiple POs or the starting positions of multiple POs. In other words, PF represents the frame number of the system frame in which the paging message should appear. Based on this, the terminal device can listen to the PDCCH encrypted by the P-RNTI in the PO on the PF to receive the paging indication information, and finally receive the paging message based on the paging indication information.

[0065] Figure 2 shows the location of the PF and the PO within the PF within a paging DRX cycle. As shown in Figure 2, the PF is located within the paging DRX cycle. A PF may include one or more POs, and these multiple POs may correspond to different terminal devices. In other words, from the perspective of network devices, a paging DRX cycle can have multiple POs. However, for a terminal device, during the paging DRX cycle, it only needs to monitor its own PO.

[0066] As described above, the terminal can calculate the PF and PO based on the UE_ID (that is, the location where the terminal device monitors the PO is related to the ID of the terminal device). In some implementations, the system frame corresponding to the system frame number (SFN) that satisfies the formula (SFN+PF_offset) mod T = (T div N) * (UE_ID mod N) can be used as a PF, and within the PF, the index (index) i_s of the PO corresponding to the terminal device within a PF can be calculated according to the formula i_s = floor (UE_ID / N) mod Ns. Wherein, T represents the DRX cycle in which the terminal device receives paging; UE_ID is used to identify the terminal device; N represents the number of PFs included in the DRX cycle of paging (that is, the total number of paging frames in T); Ns represents the number of POs included in a PF. PF_offset is used to determine the time domain offset (frame offset) of the PF. Div represents integer division, mod represents modulo operation, and floor() represents rounding down.

[0067] It should be noted that for a terminal device, the network will broadcast a default DRX cycle. If the higher layer (such as RRC) configures a terminal device-specific DRX cycle for the terminal device, the smaller DRX cycle between the network broadcast DRX cycle and the higher layer configured DRX cycle can be selected as the above T. That is, T = min(T_UE, T_sib), where T_sib represents the default DRX cycle indicated in the system message, and T_UE represents the DRX cycle configured for the terminal. Of course, for terminal devices that are not configured with T_UE, the default DRX cycle broadcast by the network can be used as the above T, that is, T = T_sib.

[0068] It should also be noted that, in some embodiments, the above-mentioned UE_ID can be calculated by the formula UE_ID = (5G-S-TMSI mod 1024), where 5G-S-TMSI represents the temporary mobile user identity (TMSI) allocated by the communication system to the terminal device.

[0069] The terminal device can calculate the monitored PF and the index of the PO based on the above formula. Furthermore, the terminal device can also obtain the number of PDCCH monitoring opportunities in the PO and the starting position of the first PDCCH monitoring opportunity of the PO. For example, the number of PDCCH monitoring opportunities in the PO can be calculated by a formula, and the starting position of the first PDCCH monitoring opportunity of the PO can be obtained by the configuration parameters sent by the network (for example, the configuration parameters configured by the network through high-level signaling). After the terminal device obtains the above information or parameters, it can receive the paging message according to the determined PO.

[0070] Exemplarily, the PDCCH monitoring occasion for paging may be determined according to two parameters: pagingSearchSpace and firstPDCCH-MonitoringOccasionOfPO.

[0071] In some implementations, when pagingSearchSpace is configured with SearchSpaceId=0, the PDCCH monitoring opportunity for paging can be the same as the monitoring opportunity for remaining minimum system information (RMSI). In this case, Ns is 1 or 2. For Ns=1, there is only one PO in the PF, which starts from the first PDCCH monitoring opportunity for paging; for Ns=2, the PO is located in the first half-frame (i_s=0) or the second half-frame (i_s=1) of the PF.

[0072] When the pagingSearchSpace is configured as SearchSpaceId not equal to 0, the terminal device monitors the (i_s+1)th PO. The PO can contain a set of S*X consecutive PDCCH monitoring opportunities, where S is the number of synchronization signal blocks (SSBs) actually sent by the network device in the master information block (MIB), and X is the number of PDCCH monitoring opportunities corresponding to each SSB. The (x*S+K)th PDCCH monitoring opportunity for paging in the PO corresponds to the Kth transmitted SSB, where x=0,1,…,X-1, K=1,2,…,S. The PDCCH monitoring opportunities for paging in the PF are numbered sequentially from zero starting from the first PDCCH monitoring opportunity for paging. When firstPDCCH-MonitoringOccasionOfPO is configured, the starting PDCCH monitoring opportunity number of the (i_s+1)th PO is the (i_s+1)th value of firstPDCCH-MonitoringOccasionOfPO; otherwise it is i_s*S*X.

[0073] Paging false alarm

[0074] It can be seen from the above-mentioned way of UE determining PO that the determination of PO is related to UE_ID, PF and the total number of POs. When the system contains a large number of terminal devices, the network device cannot assign each terminal device to a different PO, resulting in a situation where multiple terminal devices may correspond to one PO. In this case, if the network device wants to page a terminal device on this PO, it may cause other terminal devices that originally did not have paging messages to receive additional messages, mainly including receiving PDCCH and the corresponding PDSCH. For these terminal devices that originally did not have paging messages, this erroneous paging is a paging false alarm.

[0075] Enhanced paging mechanism

[0076] To further optimize terminal device energy conservation, an enhanced paging mechanism needs to be designed to reduce unnecessary terminal device page reception (i.e., reduce paging false alarms). To this end, a method based on Paging Early Indication (PEI) is discussed to further reduce terminal device power consumption. For example, terminal devices in RRC Idle and RRC Inactive states can use PEI to reduce power consumption.

[0077] In the PEI-based solution, the network device will send a PEI to the terminal device before the arrival of the PO in each paging DRX cycle to indicate whether the terminal device receives the PDCCH carrying the paging indication information on the PO. In other words, the terminal device can decide whether to monitor the paging message normally on the corresponding PO or skip monitoring the paging message based on the received PEI. The terminal device will only be awakened when the PEI indicates that the terminal device needs to receive the PDCCH on a certain PO. Otherwise, if the PEI indicates that the terminal device does not need to receive the PDCCH on the PO, the terminal device will remain in sleep mode to reduce power consumption.

[0078] In some implementations, if the network device provides a PEI configuration in a system message, a terminal device in an RRC idle state or an RRC inactive state may monitor the PEI to determine whether it needs to monitor a paging message.

[0079] In some implementations, the PEI may be carried in DCI with a PEI-RNTI scrambled CRC. For example, the PEI may be carried in DCI 2_7 with a PEI-RNTI scrambled CRC.

[0080] The terminal device can monitor one PEI occasion (PEI-O) in each DRX cycle. In some implementations, PEI-O is a set of PDCCH monitoring occasions, which can include multiple time units (such as subframes or OFDM symbols) used to carry PEI. In some implementations, one PEI-O can be associated with one or two PFs. POs, and the maximum number of PFs associated with a PEI-O is 2.

[0081] In some implementations, the time domain position of the PEI-O can be determined by a reference point and an offset. For example, the first PF among all PFs associated with the PEI-O can be offset at the frame level and used as the reference frame, and the starting point of the reference frame is defined as the reference point. The first PDCCH monitoring timing of the PEI-O can then be determined based on the reference point and the symbol-level offset.

[0082] Exemplarily, the PDCCH monitoring timing for PEI may be determined according to the parameter pei-SearchSpace.

[0083] In some implementations, when pei-SearchSpace is configured as SearchSpaceId=0, the PDCCH monitoring timing for PEI can be the same as the monitoring timing for RMSI. When pei-SearchSpace is configured as SearchSpaceId not equal to 0, the terminal device monitors PEI-O according to the search space of SearchSpaceId. It should be noted that the terminal device can still determine the first PDCCH monitoring timing of PEI-O based on the above reference point and symbol-level offset.

[0084] The PEI-O can contain a set of S*X consecutive PDCCH monitoring opportunities, where S is the number of SSBs actually transmitted as advertised by the network device in the main system information MIB, and X is the number of PDCCH monitoring opportunities corresponding to each SSB. The (x*S+K)th PDCCH monitoring opportunity for PEI in the PEI-O corresponds to the Kth transmitted SSB, where x = 0, 1, ..., X-1, and K = 1, 2, ..., S. The PDCCH monitoring opportunities for PEI in the PEI-O are numbered sequentially starting from zero, starting from the first PDCCH monitoring opportunity for PEI.

[0085] In some implementations, when a terminal device detects a PEI in a PEI-O, the terminal device may not monitor subsequent monitoring opportunities associated with the same PEI-O.

[0086] In some implementations, the paging indication field of the PEI can be used to indicate whether a terminal subgroup (terminal device group) needs to monitor paging messages. Taking the PEI carried by the DCI 2_7 with the PEI-RNTI scrambled CRC as an example, the paging indication field of the DCI 2_7 can contain bits, of which = The number of terminal subgroups in each PO, that is, each bit in the paging indication field can indicate a terminal subgroup in the PO. Based on this, for the subgroup index i SG , The terminal device can The value of the bit determines whether to monitor the corresponding PO, where i PO Indicates PO index, In some embodiments, when the first When the value of the bit is "1", the terminal device monitors the corresponding PO, otherwise, the terminal device may not monitor the PO.

[0087] In some communication scenarios, terminal devices may be unable to receive messages sent by network devices due to limited downlink coverage, resulting in communication failure. For example, in the NTN system, limited satellite transmit power may result in a low downlink receive signal-to-noise ratio (SNR), which may prevent terminal devices from receiving messages sent by the satellite, leading to communication failure.

[0088] In response to the above problems, an embodiment of the present application provides a wireless communication method, terminal device and network device, so that the network device can provide an alarm message to the terminal device, thereby helping the terminal device to determine subsequent communication behavior based on the alarm message and improve the communication success rate.

[0089] The following describes the method embodiments of the present application in conjunction with the accompanying drawings.

[0090] Figure 3 is a schematic flow chart of a wireless communication method provided by an embodiment of the present application. The method shown in Figure 3 is described from the perspective of the interaction between a first terminal device and a network device. The first terminal device and network device can be, for example, the terminal device 120 and network device 110 shown in Figure 1A, the terminal device 1101 and network device 1102 shown in Figure 1B, or the terminal device 1201 and network device 1203 shown in Figure 1C.

[0091] The method shown in FIG3 may include step S310 , which is described below.

[0092] In step S310, a first terminal device receives a first channel or a first signal sent by a network device.

[0093] The first channel or the first signal may be used to provide an alarm message (or alarm information), or in other words, the first channel or the first signal may be used by the network device to provide an alarm message to one or more terminal devices.

[0094] In an embodiment of the present application, the network device may provide an alarm message for one or more terminal devices, and the first terminal device may be any one of the one or more terminal devices, which is not limited in this embodiment of the present application.

[0095] In some embodiments, the alert message may be used to enable the terminal device (eg, the first terminal device) to better communicate with the network device.

[0096] In some embodiments, the alarm message can be used to alert the terminal device that the current signal reception quality is poor.

[0097] In some embodiments, the alert message may instruct the terminal device to move in order to better communicate with the network device.

[0098] As an implementation method, the alarm message can use 1 bit to indicate whether the terminal device has moved. For example, when the value of the alarm message is "1", it can indicate that the terminal device has moved, so that the terminal device moves to another location (such as a location with better signal reception quality) according to the alarm message to communicate with the network device; when the value of the alarm message is "0", it can indicate that the terminal device does not move, and the terminal device can communicate with the network device at the current location. However, the embodiment of the present application is not limited to this. For example, when the value of the alarm message is "0", it can indicate that the terminal device has moved, so that the terminal device moves to another location (such as a location with better signal reception quality) according to the alarm message to communicate with the network device; when the value of the alarm message is "1", it can indicate that the terminal device does not move, and the terminal device can communicate with the network device at the current location.

[0099] As another implementation, the alarm message may use multiple bits to indicate whether the terminal device has moved. For example, when the value of the alarm message is "yes," "move," or other related information, the alarm message may instruct the terminal device to move, so that the terminal device moves to another location (such as a location with better signal reception quality) based on the alarm message to communicate with the network device; when the value of the alarm message is "no," "do not move," or other related information, the alarm message may instruct the terminal device not to move, and the terminal device can communicate with the network device at its current location.

[0100] In some embodiments, the alarm message may instruct the terminal device to move to a location with better signal reception quality in order to better communicate with the network device. Alternatively, in some embodiments, the alarm message may instruct the terminal device to move from a first location to a second location, wherein the signal reception quality of the terminal device at the second location is higher than the signal reception quality at the first location.

[0101] As an implementation, the alarm message may use multiple bits to indicate whether the terminal device has moved to a location with better signal reception quality. For example, when the value of the alarm message is "Move," "Move to a location with better signal quality," or other related information, the alarm message may instruct the terminal device to move, so that the terminal device can move to a location with better signal reception quality and communicate with the network device. When the value of the alarm message is "No," "Do not move," or other related information, the alarm message may instruct the terminal device not to move, and the terminal device can communicate with the network device at its current location.

[0102] This is because the applicant has found that in some communication scenarios with limited downlink coverage performance, if the terminal device is in an unfavorable signal reception position (for example, there are obstructions in the surrounding environment), the communication failure rate between the terminal device and the network device will increase. However, current communication systems (such as NR systems) do not support network devices to provide alarm messages to terminal devices with poor signal reception quality. Therefore, an embodiment of the present application can use the first channel or the first signal to provide an alarm message to the terminal device, so that the terminal device can determine the subsequent communication behavior based on the alarm message, which is conducive to improving the communication success rate. For example, the terminal device can determine whether to move (for example, whether to move to a position with better signal reception quality) based on the alarm message in order to better communicate with the network device.

[0103] In some embodiments, the terminal device communicating with the network device may include the terminal device receiving a paging message sent by the network device. For example, the terminal device may move to a location with better signal reception quality based on the alarm message to successfully receive the paging message, thereby ensuring successful paging.

[0104] In some embodiments, communication between a terminal device and a network device may include the terminal device receiving a system message sent by the network device. For example, based on an alert message, the terminal device may move to a location with better signal reception quality to successfully receive the system message, thereby promptly performing one or more of a system message change and receiving an alert message sent by ETWS and / or CMAS. In other words, when the network device sends a short message to notify the terminal device of one or more of a system message change and an alert message sent by ETWS and / or CMAS, the alert message can be used to improve the communication success rate.

[0105] As mentioned above, the alarm message is provided via the first channel or the first signal. The first channel or the first signal will be described in detail below.

[0106] In some embodiments, the first channel may be a PDCCH. For example, the first channel may be a PDCCH for scheduling a data channel. Alternatively, the first channel may be a PDCCH specifically for carrying (providing) an alert message.

[0107] In some embodiments, the first signal may be a reference signal. That is, the warning message may be carried in the reference signal. For example, the warning message may be carried in a new reference signal, which may be used specifically to carry the warning message. Alternatively, the warning message may be carried in an existing reference signal. For example, a first sequence may be added to a reference signal such as an SSB to carry the warning message.

[0108] Several feasible implementations of the first channel or the first signal are given below in conjunction with Embodiments 1 to 3.

[0109] Example 1: The first channel is a PDCCH used to schedule a data channel

[0110] In the first embodiment, the first channel is the PDCCH used to schedule data channels (such as the PDSCH). In other words, the embodiment of the present application can use the PDCCH used to schedule data channels as the first channel (i.e., the alarm channel). In this case, the embodiment of the present application can use the existing PDCCH to provide alarm messages to terminal devices, with minimal impact on existing systems.

[0111] In some embodiments, considering that data channels are generally scheduled through PDCCH and PDCCH usually has better coverage performance than data channels, the PDCCH that schedules data channels can be used as the first channel to provide alarm messages to terminal devices.

[0112] In some embodiments, the first channel may be scrambled using a P-RNTI.

[0113] In some embodiments, after receiving the first channel or alarm message sent by the network device, the physical layer of the terminal device may report the alarm message to the higher layer of the terminal device. In this way, the higher layer of the terminal device may determine the subsequent behavior of the terminal device based on the alarm message. For example, the alarm message may be used to instruct the terminal device to move or move to a location with better signal reception quality. In this case, the higher layer of the terminal device may move to a location with better signal reception quality according to the instruction of the alarm message to facilitate subsequent communication with the network device.

[0114] For example, if a terminal device receives a PDCCH (i.e., a first channel) that schedules a data channel, but the terminal device is in a location with poor signal reception quality, resulting in the terminal device failing to further receive or send data channels, in this case, the physical layer of the terminal device can report an alarm message to the upper layer to instruct the terminal device to move to a location with better signal reception quality, thereby helping to improve the success rate of the terminal device in further receiving or sending data channels.

[0115] The embodiments of the present application do not specifically limit the data channel mentioned above. The data channel can be a channel carrying any data or information, for example, the data channel can be a PDSCH carrying any data or information. For example, in some embodiments, the data channel can carry a paging message; in some embodiments, the data channel can carry a system message.

[0116] 4 , an example of a process in which a terminal device (such as a first terminal device) receives a first channel and reports an alarm message is given below.

[0117] Fig. 4 shows a schematic diagram of a process of a first terminal device receiving a first channel and reporting an alarm message. The method shown in Fig. 4 may include steps S410 to S430.

[0118] In step S410, a first terminal device receives a first channel. The first channel may be used to provide an alarm message.

[0119] In some embodiments, the first channel may be a PDCCH used to schedule paging messages.

[0120] In some embodiments, the first channel may be a PDCCH used to carry short messages.

[0121] In some embodiments, the first channel may be a PDCCH used to schedule system messages.

[0122] In some embodiments, the first channel may be a PDCCH for scheduling user data.

[0123] In some embodiments, the first channel may be scrambled using the P-RNTI. For example, the first channel may be a PDCCH carrying DCI 1_0 with a CRC scrambled using the P-RNTI.

[0124] For other relevant contents of the first channel and the alarm message, please refer to the above introduction and will not be repeated here.

[0125] In step S420, the first terminal device fails to receive the data channel.

[0126] In some embodiments, after the first terminal device receives the first channel, the first terminal device fails to further receive the data channel because the first terminal device may be in a location with poor signal reception quality or other reasons.

[0127] In some embodiments, the data channel may carry a paging message.

[0128] In some embodiments, the data channel may carry system messages.

[0129] In some embodiments, the data channel may carry user data.

[0130] In step S430, the physical layer of the first terminal device reports an alarm message to a higher layer.

[0131] In some embodiments, the first terminal device reports an alarm message to a higher layer, where the alarm message can be used to instruct the first terminal device to move or move to a location with better signal reception quality.

[0132] In some embodiments, after the upper layer of the first terminal device receives the alarm message, it can determine the subsequent communication behavior of the terminal device based on the alarm message, for example, instructing the terminal device to move to a location with better signal reception quality; or, ignore the alarm message so that the terminal device can continue to communicate with the network device at the current location (for example, re-receive the data channel).

[0133] The following provides examples of the process of the first terminal device receiving the first channel and reporting the alarm message, taking the data channel carrying a paging message and the data channel carrying a system message as examples respectively.

[0134] As a possible implementation method, in an embodiment of the present application, the network device can use the PDCCH used to schedule the PDSCH carrying the paging message as the first channel to provide the terminal device with an alarm message. In some embodiments, the first channel can be encrypted using P-RNTI, or in other words, the information of scheduling the PDSCH can be carried using the DCI encrypted by P-RNTI. For example, the information of scheduling the PDSCH can be carried using the DCI 1_0 with the P-RNTI encrypted CRC. In some embodiments, after the terminal device receives the PDCCH for scheduling the paging message, it may fail to receive the PDSCH carrying the paging message further due to the location where the signal reception quality is poor. In this case, the physical layer of the terminal device can report an alarm message to the upper layer to instruct the terminal device to move to a location with better signal reception quality.

[0135] As another possible implementation, in an embodiment of the present application, the network device may use the PDCCH carrying the short message as the first channel to provide an alarm message to the terminal device. In some embodiments, the short message can be used to notify the terminal device to update the system message. In some embodiments, the first channel can be encrypted using P-RNTI, or in other words, the short message can be carried on the first channel encrypted using P-RNTI. For example, the short message can be carried using DCI 1_0 with P-RNTI encrypted CRC. In some embodiments, after the terminal device receives the PDCCH carrying the above-mentioned short message, the terminal device may fail to receive further system messages due to being in a location with poor signal reception quality. In this case, the physical layer of the terminal device can report an alarm message to the upper layer to instruct the terminal device to move to a location with better signal reception quality.

[0136] The formulas for determining PF and PO mentioned above indicate that multiple terminal devices may monitor the same PO. Therefore, a terminal device can only determine whether it has been paged after receiving a PDSCH carrying a paging message. Therefore, if the physical layer of a terminal device reports an alarm to higher layers as soon as it receives the PDCCH scheduling a paging message but fails to receive a PDSCH carrying a paging message, there is a certain probability of false alarms.

[0137] To address the above problem, the embodiment of the present application can use the first information to indicate whether the physical layer of the terminal device needs to report alarm information to the upper layer, thereby reducing the probability of false alarms. The first information is introduced in detail below.

[0138] The embodiment of the present application does not limit the indication method of the first information. Several possible implementation methods are given below as examples.

[0139] As a possible implementation method, the first information can use 1 bit to indicate whether the physical layer of the terminal device reports an alarm message to the upper layer. For example, when the value of the first information is "1", it can indicate the physical layer of the terminal device to report an alarm message to the upper layer; when the value of the first information is "0", it can indicate the physical layer of the terminal device not to report an alarm message to the upper layer. Alternatively, when the value of the first information is "0", it can indicate the physical layer of the terminal device to report an alarm message to the upper layer; when the value of the first information is "1", it can indicate the physical layer of the terminal device not to report an alarm message to the upper layer.

[0140] As another possible implementation, the first information may use multiple bits to indicate whether the physical layer of the terminal device reports the alarm message to the upper layer. In some embodiments, the multiple bits may be used to indicate the index of the terminal device group. For example, when the value of the first information is the index of a certain terminal device group, it may indicate that the physical layer of the terminal device in the terminal device group reports the alarm message to the upper layer, while the physical layer of the terminal device in other terminal device groups may not report the alarm message to the upper layer. Alternatively, when the value of the first information is the index of a certain terminal device group, it may indicate that the physical layer of the terminal device in the terminal device group does not report the alarm message to the upper layer, while the physical layer of the terminal device in other terminal device groups may report the alarm message to the upper layer.

[0141] As another possible implementation, the first information may use multiple bits to indicate whether the physical layer of the terminal device reports an alarm message to a higher layer. In some embodiments, the multiple bits may be used to indicate whether the terminal device or a group of terminal devices needs to report an alarm message. For example, when the value of the first information is "yes", "report", or other related information, it may indicate that the physical layer of the terminal device reports an alarm message to a higher layer. Alternatively, when the value of the first information is "no", "do not report", or other related information, it may indicate that the physical layer of the terminal device does not report an alarm message to a higher layer.

[0142] In some embodiments, the first channel (e.g., a PDCCH for scheduling a data channel) may include a first information field, which may be used to indicate the first information. In other words, embodiments of the present application may utilize the first information field to indicate the first information to the terminal device to reduce the false alarm probability between different terminal devices within the same PO.

[0143] The embodiment of the present application does not limit the first information field included in the first channel, which can be any information field in the first channel. Exemplarily, the first information field can be a reserved bit field in the first channel, and the reserved bit field can be used to provide the first information to the terminal device. In some embodiments, the reserved bit field can be a scrambled bit field. For example, the reserved bit field can be a reserved bit field in a DCI scrambled using a P-RNTI. As a specific example, the reserved bit field can be a reserved bit field in a DCI 1_0 scrambled with a CRC using a P-RNTI.

[0144] Taking the PDCCH for scheduling paging messages as an example, when the first channel (i.e., DCI 1_0 using P-RNTI scrambled CRC) is only used to schedule PDSCH carrying paging messages, the 8-bit short message field in the DCI 1_0 is a reserved bit field, which can be used to indicate the first information to the terminal device, thereby reducing the probability of false alarm.

[0145] In some embodiments, the first information field may include one or more bits, which may be used to indicate first information corresponding to one or more terminal devices.

[0146] In some embodiments, one or more bits included in the first information field can be used to indicate first information corresponding to one or more terminal device groups (or terminal subgroups), or in other words, one or more bits included in the first information field can be used to indicate first information corresponding to terminal devices in one or more terminal device groups. In this case, it can be considered that the granularity indicated by the first information is the terminal device group, or in other words, the first information indicates whether the alarm message needs to be reported based on the granularity of the terminal device group.

[0147] In some embodiments, each of the one or more terminal device groups may include one or more terminal devices.

[0148] In some implementations, first, the number of terminal devices in each PO can be determined based on the number of PFs in the DRX cycle and the number of POs in each PF. For example, the number of terminal devices in each PO can be determined using the following formula: in, In some embodiments, after determining the number of terminal devices in each PO, the terminal devices in each PO can be divided into one or more terminal device groups, each of which can contain one or more terminal devices. For example, Terminal devices are divided into In this way, it is possible to indicate whether an alarm message needs to be reported based on the granularity of the terminal device group. For example, Determine which bits (eg, X bits) in the first information field can be used to indicate whether the terminal device reports an alarm message to a higher layer.

[0149] Several implementations of how to indicate whether an alarm message needs to be reported based on the granularity of terminal device groups are given below.

[0150] Implementation method 1:

[0151] Each of the one or more bits may correspond to a terminal device group, and each bit may be used to indicate whether the physical layer of each terminal device in the corresponding terminal device group reports an alarm message to a higher layer.

[0152] Taking the example of the first information field including X bits (X is a positive integer greater than or equal to 1), each of the X bits in the first information field can indicate a terminal device group. In this case, X can be equal to in, Indicates the number of terminal device groups in a PO. SG (0≤i SG <X) of the terminal device group, the terminal devices in the terminal device group can be based on the i-th of the X bits SG The value of this bit determines whether to report the alarm message to its upper layer.

[0153] As an example, if the i-th of the X bits SG When the value of the bit is "1", the index is iSG The physical layer of each terminal device in the terminal device group can report an alarm message to its own upper layer to instruct the terminal device to move to a location with better signal reception quality; otherwise, if the i-th bit in the X bits SG When the value of the bit is "0", the index is i SG The physical layer of each terminal device in the terminal device group may not report an alarm message to its own upper layer.

[0154] As another example, if the i-th of the X bits SG When the value of the bit is "0", the index is i SG The physical layer of each terminal device in the terminal device group can report an alarm message to its own upper layer to instruct the terminal device to move to a location with better signal reception quality; otherwise, if the i-th bit in the X bits SG When the value of the bit is "1", the index is i SG The physical layer of each terminal device in the terminal device group may not report an alarm message to its own upper layer.

[0155] A possible process example of implementation mode 1 is given below in conjunction with Figure 5. The process shown in Figure 5 may include steps S510 to S540.

[0156] In step S510, a first terminal device receives a first channel. The first channel may be used to provide an alarm message.

[0157] For the relevant introduction of step S510, please refer to the introduction of step S410 above, and for the sake of brevity, it will not be repeated here.

[0158] In step S520, the first terminal device fails to receive the data channel.

[0159] For the relevant introduction of step S520, please refer to the introduction of step S420 above. For the sake of brevity, it will not be repeated here.

[0160] In step S530, the first terminal device determines the value of the bit corresponding to the terminal device group to which the first terminal device belongs in the first information field.

[0161] Taking the terminal device group to which the first terminal device belongs as the first terminal device group as an example, the first terminal device can determine the value of the bit corresponding to the first terminal device group in the first information field to determine whether to report the alarm message to the upper layer. As an example, assuming that the index of the first terminal device group is i first , the first terminal device can determine the i-th first The value of the bit is used to determine whether to report the alarm message to the upper layer.

[0162] In step S540, the first terminal device determines whether to report an alarm message to a higher layer according to the value of the bit corresponding to the terminal device group to which the first terminal device belongs.

[0163] Taking the terminal device group to which the first terminal device belongs as the first terminal device group as an example, if the value of the bit corresponding to the first terminal device group indicates that each terminal device in the first terminal device group reports an alarm message to the upper layer, then the physical layer of the first terminal device determines to report the alarm message to the upper layer; if the value of the bit corresponding to the first terminal device group indicates that each terminal device in the first terminal device group does not report the alarm message to the upper layer, then the physical layer of the first terminal device determines not to report the alarm message to the upper layer.

[0164] It should be noted that the first terminal device group mentioned in the embodiments of the present application can be any terminal device group from one or more terminal device groups, and the first terminal device can be any terminal device from the first terminal device group. The same applies to the first terminal device group and the first terminal device mentioned later. For the sake of brevity, they will not be repeated hereafter.

[0165] Implementation 2:

[0166] The one or more bits correspond to a terminal device group, and the one or more bits are used to indicate whether the physical layer of each terminal device in the corresponding terminal device group reports an alarm message to a higher layer.

[0167] Taking the first information field including X bits (X is a positive integer greater than or equal to 1) as an example, the X bits can indicate a terminal device group. As an implementation, the X bits can indicate the index of a terminal device group. In the case where the X bits indicate the index of a terminal device group, X can be equal to in, For the terminal device group indicated by the X bits, each terminal device in the terminal device group may report an alarm message to its own upper layer, or may not report an alarm message to its own upper layer.

[0168] As an example, when the terminal device group indicated by the X bits is predefined, preconfigured, or network configured to report an alarm message to its own upper layer, then each terminal device in the terminal device group indicated by the X bits can report an alarm message to its own upper layer, and the terminal devices in other terminal device groups may not report an alarm message to their own upper layer.

[0169] As another example, when the terminal device group indicated by the X bits is predefined, preconfigured, or network configured not to report an alarm message to its own upper layer, then each terminal device in the terminal device group indicated by the X bits may not report an alarm message to its own upper layer, and the terminal devices in other terminal device groups may report an alarm message to their own upper layer.

[0170] It should be noted that the number of bits included in the one or more bits may be greater than or equal to X bits. For example, the number of bits included in the one or more bits may be equal to X bits, and the X bits may indicate one terminal device group. Alternatively, the number of bits included in the one or more bits may be equal to 2*X bits, 3*X bits, etc., where each X bits may indicate one terminal device group. Taking the example of the one or more bits including 2*X bits, the 2*X bits may indicate two terminal device groups.

[0171] A possible process example of implementation mode 2 is given below in conjunction with Figure 6. The process shown in Figure 6 may include steps S610 to S640.

[0172] In step S610, a first terminal device receives a first channel. The first channel may be used to provide an alarm message.

[0173] For the relevant introduction of step S610, please refer to the introduction of step S410 above, and for the sake of brevity, it will not be repeated here.

[0174] In step S620, the first terminal device fails to receive the data channel.

[0175] For the relevant introduction of step S620, please refer to the introduction of step S420 above, and for the sake of brevity, it will not be repeated here.

[0176] In step S630, the first terminal device determines the index of the terminal device group indicated by the first information field.

[0177] Taking the terminal device group to which the first terminal device belongs as the first terminal device group as an example, the first terminal device can determine whether the index of the terminal device group indicated by the first information field includes the index of the first terminal device group to determine whether to report the alarm message to the upper layer.

[0178] In step S640, the first terminal device determines whether to report an alarm message to a higher layer according to the index of the terminal device group indicated by the first information field.

[0179] Taking the terminal device group to which the first terminal device belongs as the first terminal device group as an example, as a possible implementation method, if the index of the terminal device group indicated by the first information field includes the index of the first terminal device group, the physical layer of the first terminal device determines to report the alarm message to the upper layer; if the index of the terminal device group indicated by the first information field does not include the index of the first terminal device group, the physical layer of the first terminal device determines not to report the alarm message to the upper layer. As another possible implementation method, if the index of the terminal device group indicated by the first information field includes the index of the first terminal device group, the physical layer of the first terminal device determines not to report the alarm message to the upper layer; if the index of the terminal device group indicated by the first information field does not include the index of the first terminal device group, the physical layer of the first terminal device determines to report the alarm message to the upper layer.

[0180] In some embodiments, if the first terminal device belongs to a first terminal device group, and the first information indicates that the physical layer of each terminal device in the first terminal device group reports an alarm message to the upper layer of each terminal device, then the physical layer of the first terminal device can report the alarm message to the upper layer of the first terminal device.

[0181] In some embodiments, if the first terminal device belongs to a first terminal device group, and the first information indicates that the physical layer of each terminal device in the first terminal device group does not report an alarm message to the upper layer of each terminal device, then the physical layer of the first terminal device may not report an alarm message to the upper layer of the first terminal device.

[0182] Example 2: The first channel is a dedicated channel for carrying alarm messages

[0183] In embodiment 2, the first channel is a dedicated channel for carrying an alarm message, for example, the first channel is a PDCCH specifically for carrying an alarm message. That is to say, the embodiment of the present application can utilize a dedicated channel (such as a dedicated PDCCH) that carries an alarm message as the first channel (i.e., the alarm channel). In this case, the embodiment of the present application can reduce the signaling overhead while ensuring that the first channel has better coverage performance. This is because the dedicated channel carrying the alarm message can use a smaller number of DCI bits to carry the alarm message, thereby reducing the signaling overhead. In addition, when the embodiment of the present application utilizes a dedicated channel carrying an alarm message as the first channel, the transmission position of the first channel can be flexibly configured.

[0184] In some embodiments, the first channel may be a PDCCH containing a first DCI format, the first DCI format being used to provide the warning message. That is, in some embodiments, the PDCCH containing the first DCI format may be a dedicated channel carrying the warning message.

[0185] In some embodiments, the first channel may be scrambled using the first RNTI, or the first DCI format may be scrambled using the first RNTI. For example, the CRC of the first channel or the first DCI format may be scrambled using the first RNTI.

[0186] The embodiments of the present application do not specifically limit the first RNTI. In some embodiments, the first RNTI may be an existing RNTI. For example, the first RNTI may be a PEI-RNTI. In some embodiments, the first RNTI may be a newly added RNTI. For example, the first RNTI may be an RNTI dedicated to alert messages.

[0187] In some embodiments, the first DCI format may be associated with one or more POs. Thus, the first DCI format may be used to provide an alert message to one or more terminal devices corresponding to the associated one or more POs. For example, the embodiment of the present application may associate the first DCI format with indivual( is a positive integer greater than or equal to 1) PO association, so as to transmit the first DCI format to The terminal equipment in each PO provides an alarm message.

[0188] In some embodiments, after receiving the first channel or alarm message sent by the network device, the physical layer of the terminal device may report the alarm message to the higher layer of the terminal device. In this way, the higher layer of the terminal device may determine the subsequent behavior of the terminal device based on the alarm message. For example, the alarm message may be used to instruct the terminal device to move or move to a location with better signal reception quality. In this case, the higher layer of the terminal device may move to a location with better signal reception quality according to the instruction of the alarm message to facilitate subsequent communication with the network device.

[0189] For example, if the terminal device fails to receive a paging message or a system message, the terminal device can determine whether to report an alarm message to a higher layer based on the received PDCCH containing the first DCI format to instruct the terminal device to move to a location with better signal reception quality, thereby helping to improve the success rate of the terminal device in further receiving or sending data channels.

[0190] In some embodiments, after the upper layer of the first terminal device receives the alarm message, it can determine the subsequent communication behavior of the terminal device based on the alarm message, for example, instructing the terminal device to move to a location with better signal reception quality; or, ignore the alarm message so that the terminal device can continue to communicate with the network device at the current location (for example, re-receive the data channel).

[0191] Considering that multiple terminal devices may monitor the same PO, in order to reduce the false alarm probability between different terminal devices in the same PO, as a feasible solution, the embodiment of the present application can use the first information to indicate whether the physical layer of the terminal device needs to report alarm information to the upper layer, thereby reducing the false alarm probability.

[0192] Regarding the indication method of the first information, please refer to the introduction above. For the sake of brevity, it will not be repeated here.

[0193] In some embodiments, the first channel (e.g., a dedicated channel carrying an alarm message) may include a second information field, which may be used to indicate the first information. In other words, embodiments of the present application may utilize the second information field to indicate the first information to a terminal device, thereby reducing the probability of false alarms between different terminal devices within the same PO.

[0194] In other words, in some embodiments, the first DCI format may include a second information field, and the second information field may be used to indicate the first information. In other words, embodiments of the present application may use the second information field to indicate the first information to the terminal device to reduce the false alarm probability between different terminal devices within the same PO.

[0195] The embodiment of the present application does not specifically limit the second information field, which can be any information field in the first channel or the first DCI format. Exemplarily, the second information field can be a dedicated information field (or alarm information field) in the first channel or the first DCI format, which is used to provide the first information to the terminal device.

[0196] In some embodiments, the second information field may include one or more bits, which may be used to indicate the first information corresponding to one or more terminal devices.

[0197] In some embodiments, one or more bits included in the second information field can be used to indicate the first information corresponding to one or more terminal device groups (or terminal subgroups), or in other words, the one or more bits included in the second information field can be used to indicate the first information corresponding to the terminal devices in the one or more terminal device groups. In this case, it can be considered that the granularity indicated by the first information is the terminal device group, or in other words, the first information indicates whether the alarm message needs to be reported based on the granularity of the terminal device group.

[0198] In some implementations, first, the first DCI format may be combined with PO association, so that the first DCI format The terminal devices in each PO can provide an alarm message. Afterwards, the terminal devices in each PO can be divided into one or more terminal device groups, each of which can contain one or more terminal devices. For example, the terminal devices in each PO can be divided into one or more terminal device groups. Terminal devices are divided into Terminal device groups. For the relevant introduction on how to determine the number of terminal devices in each PO, please refer to the previous article and will not be repeated here. In this way, it is possible to indicate whether an alarm message needs to be reported based on the granularity of the terminal device group. For example, it can be determined based on the number of POs. and the number of terminal device groups Determine which bits (eg, Y bit) in the second information field can be used to indicate whether the terminal device reports an alarm message to a higher layer.

[0199] Several implementations of how to indicate whether an alarm message needs to be reported based on the granularity of terminal device groups are given below.

[0200] Implementation method 1:

[0201] Each of the one or more bits may correspond to a terminal device group, and each bit may be used to indicate whether the physical layer of each terminal device in the corresponding terminal device group reports an alarm message to a higher layer.

[0202] Taking the example that the second information field includes Y bits (Y is a positive integer greater than or equal to 1), each of the Y bits in the second information field can indicate a terminal device group.

[0203] In some embodiments, the value of Y can be based on and That is, the number of bits Y contained in the second information field in the first channel or the first DCI format can be determined according to and OK. Taking implementation method 1 as an example, Y can be equal to For index The terminal device group can be configured to include the terminal devices in the terminal device group according to the first The value of the bit determines whether to report the alarm message to the upper layer. PO Indicates the index of PO,

[0204] As an example, if the first of the Y bits When the value of the bit is "1", the index is i SGThe physical layer of each terminal device in the terminal device group can report an alarm message to its own upper layer to instruct the terminal device to move to a location with better signal reception quality; otherwise, if the first of the Y bits When the value of the bit is "0", the index is i SG The physical layer of each terminal device in the terminal device group may not report an alarm message to its own upper layer.

[0205] As another example, if the first of the Y bits When the value of the bit is "0", the index is i SG The physical layer of each terminal device in the terminal device group can report an alarm message to its own upper layer to instruct the terminal device to move to a location with better signal reception quality; otherwise, if the first of the Y bits When the value of the bit is "1", the index is i SG The physical layer of each terminal device in the terminal device group may not report an alarm message to its own upper layer.

[0206] A possible process example of implementation mode 1 is given below in conjunction with Figure 7. The process shown in Figure 7 may include steps S710 to S730.

[0207] In step S710, the first terminal device fails to receive a paging message / system message.

[0208] In step S720, the first terminal device determines the value of the bit corresponding to the terminal device group to which the first terminal device belongs in the second information field.

[0209] Taking the terminal device group to which the first terminal device belongs as the first terminal device group as an example, the first terminal device can determine the value of the bit corresponding to the first terminal device group in the second information field to determine whether to report the alarm message to the upper layer. As an example, assuming that the index of the first terminal device group is i first , the first terminal device can determine the first The value of the bit is used to determine whether to report the alarm message to the upper layer.

[0210] In step S730, the first terminal device determines whether to report an alarm message to a higher layer according to the value of the bit corresponding to the terminal device group to which the first terminal device belongs.

[0211] Taking the terminal device group to which the first terminal device belongs as the first terminal device group as an example, if the value of the bit corresponding to the first terminal device group indicates that each terminal device in the first terminal device group reports an alarm message to the upper layer, then the physical layer of the first terminal device determines to report the alarm message to the upper layer; if the value of the bit corresponding to the first terminal device group indicates that each terminal device in the first terminal device group does not report the alarm message to the upper layer, then the physical layer of the first terminal device determines not to report the alarm message to the upper layer.

[0212] Implementation 2:

[0213] The one or more bits correspond to a terminal device group, and the one or more bits are used to indicate whether the physical layer of each terminal device in the corresponding terminal device group reports an alarm message to a higher layer.

[0214] Taking the second information field including Y bits (Y is a positive integer greater than or equal to 1) as an example, the Y bits can indicate a terminal device group. As an implementation, the Y bits can indicate the index of a terminal device group. In the case where the Y bits indicate the index of a terminal device group, Y can be equal to in, For the terminal device group indicated by the Y bits, each terminal device in the terminal device group may report an alarm message to its own upper layer, or may not report an alarm message to its own upper layer.

[0215] In some embodiments, in order to distinguish terminal device groups in different POs, the index of the terminal device group can be determined based on i PO and i SG For example, the terminal device may determine that the index of the terminal device group corresponding to the terminal device is The definitions of various parameters can be found in the previous introduction and will not be repeated here.

[0216] As an example, when the terminal device group indicated by the Y bits is predefined, preconfigured, or network configured to report an alarm message to its own upper layer, then each terminal device in the terminal device group indicated by the Y bits can report an alarm message to its own upper layer, and the terminal devices in other terminal device groups may not report an alarm message to their own upper layer.

[0217] As another example, when the terminal device group indicated by the Y bits is predefined, preconfigured, or network configured not to report an alarm message to its own upper layer, then each terminal device in the terminal device group indicated by the Y bits may not report an alarm message to its own upper layer, and the terminal devices in other terminal device groups may report an alarm message to their own upper layer.

[0218] It should be noted that the number of bits included in the one or more bits may be greater than or equal to Y bits. For example, the number of bits included in the one or more bits may be equal to Y bits, and the Y bits may indicate one terminal device group. Alternatively, the number of bits included in the one or more bits may be equal to 2*Y bits, 3*Y bits, etc., where each Y bits may indicate one terminal device group. Taking the example of the one or more bits including 2*Y bits, the 2*Y bits may indicate two terminal device groups.

[0219] A possible process example of implementation mode 2 is given below in conjunction with Figure 8. The process shown in Figure 8 may include steps S810 to S830.

[0220] In step S810, the first terminal device fails to receive a paging message / system message.

[0221] In step S820, the first terminal device determines the index of the terminal device group indicated by the second information field.

[0222] Taking the terminal device group to which the first terminal device belongs as the first terminal device group as an example, the first terminal device can determine whether the index of the terminal device group indicated by the second information field includes the index of the first terminal device group to determine whether to report the alarm message to the upper layer.

[0223] In step S830, the first terminal device determines whether to report an alarm message to a higher layer according to the index of the terminal device group indicated by the second information field.

[0224] Taking the terminal device group to which the first terminal device belongs as the first terminal device group as an example, as a possible implementation method, if the index of the terminal device group indicated by the second information field includes the index of the first terminal device group, the physical layer of the first terminal device determines to report the alarm message to the upper layer; if the index of the terminal device group indicated by the second information field does not include the index of the first terminal device group, the physical layer of the first terminal device determines not to report the alarm message to the upper layer. As another possible implementation method, if the index of the terminal device group indicated by the second information field includes the index of the first terminal device group, the physical layer of the first terminal device determines not to report the alarm message to the upper layer; if the index of the terminal device group indicated by the second information field does not include the index of the first terminal device group, the physical layer of the first terminal device determines to report the alarm message to the upper layer.

[0225] In some embodiments, if the first terminal device belongs to a first terminal device group, and the first information indicates that the physical layer of each terminal device in the first terminal device group reports an alarm message to the upper layer of each terminal device, then the physical layer of the first terminal device can report the alarm message to the upper layer of the first terminal device.

[0226] In some embodiments, if the first terminal device belongs to a first terminal device group, and the first information indicates that the physical layer of each terminal device in the first terminal device group does not report an alarm message to the upper layer of each terminal device, then the physical layer of the first terminal device may not report an alarm message to the upper layer of the first terminal device.

[0227] In some embodiments, a terminal device (such as a first terminal device) may monitor a first channel to obtain an alarm message and / or first information. For example, the terminal device may monitor the first channel at a first opportunity (or alarm opportunity). The first opportunity is described below.

[0228] In some embodiments, the first opportunity may include a group of PDCCH monitoring opportunities, or in other words, the first opportunity may include multiple PDCCH monitoring opportunities.

[0229] In some embodiments, the first opportunity may include S*M consecutive PDCCH monitoring opportunities, where S is the number of SSBs actually transmitted, and M is the number of PDCCH monitoring opportunities corresponding to each SSB.

[0230] In some embodiments, the (m*S+K)th PDCCH monitoring opportunity for carrying the warning message in the first opportunity corresponds to the Kth transmitted SSB, where m=0, 1, ..., M-1; and K=1, 2, ..., S.

[0231] In some embodiments, the PDCCH monitoring opportunities for carrying the alarm message may be sequentially numbered starting from the first PDCCH monitoring opportunity for carrying the alarm message in the first opportunity, for example, may be sequentially numbered starting from zero starting from the first PDCCH monitoring opportunity for carrying the alarm message in the first opportunity.

[0232] In some embodiments, if the terminal device detects an alarm message in a first opportunity, the terminal device may not monitor a subsequent monitoring opportunity associated with the first opportunity.

[0233] In some embodiments, a DRX cycle of a terminal device may include one or more first opportunities. For example, a DRX cycle of a terminal device may include one first opportunity. In this case, the terminal device may monitor one first opportunity in each DRX cycle. Alternatively, a DRX cycle of a terminal device may include multiple first opportunities. For example, the network may additionally configure the period of the first opportunity so that a DRX cycle may include multiple first opportunities. In this case, the terminal device may monitor one or more first opportunities in each DRX cycle.

[0234] In some embodiments, the terminal device monitoring the first channel at the first time can be understood as the terminal device monitoring the first channel at a set of PDCCH monitoring opportunities included in the first time. For example, the terminal device can monitor the PDCCH carrying the first DCI format at a set of PDCCH monitoring opportunities included in the first time.

[0235] The embodiment of the present application does not specifically limit the method for determining the time domain position of the first opportunity. For example, the time domain position of the first opportunity can be determined based on one or more of the following: the time domain position of one of the one or more POs associated with the first opportunity; a first offset; and a second offset. The first offset can be a frame-level offset, and the second offset can be a symbol-level offset.

[0236] In some embodiments, the time domain position of one of the one or more POs associated with the first opportunity can be understood as a reference point for determining the time domain position of the first opportunity. That is to say, in an embodiment of the present application, the time domain position of the first opportunity can be determined based on a reference point and an offset. For example, an embodiment of the present application can use one of the one or more POs associated with the first opportunity as a target PO, and determine the reference point based on the target PO. After that, the time domain position of the first opportunity can be determined based on the reference point and the offset (such as determining the first PDCCH monitoring opportunity of the first opportunity). It should be noted that any one of the one or more POs associated with the first opportunity can be used as a target PO, and the embodiment of the present application is not limited to this. For example, the first PO of the one or more POs associated with the first opportunity can be used as a target PO. Alternatively, the last PO of the one or more POs associated with the first opportunity can be used as a target PO, etc.

[0237] The embodiment of the present application does not limit the method for determining the reference point of the time domain position of the first moment. The reference point can be determined based on the time domain position of any one of the one or more POs associated with the first moment. For example, the reference point can be the starting point of the frame where the first PO of the one or more POs associated with the first moment is located or the frame where it is offset by the first offset. Alternatively, the reference point can be the end point of the frame where the first PO of the one or more POs associated with the first moment is located or the frame where it is offset by the first offset. Alternatively, the reference point can be the starting point of the frame where the last PO of the one or more POs associated with the first moment is located or the frame where it is offset by the first offset, etc.

[0238] A possible implementation method for determining the time domain position of the first opportunity is given below in conjunction with Figure 9. As shown in Figure 9, first, the starting point of the PF where the first PO is located in one or more POs associated with the first opportunity (in the example of Figure 9, the first opportunity is associated with 4 POs) can be offset for the first time, and the offset of the first offset is the first offset (i.e., the offset at the frame level), and the offset PF is used as the reference frame, and the starting point of the reference frame is used as the reference point; thereafter, the time domain position of the first opportunity can be determined based on the reference point and the second offset (i.e., the offset at the symbol level).

[0239] In some embodiments, by configuring different first offsets and / or second offsets, the first opportunity can be located before its associated PO, or after its associated PO, or at the same time domain position as its associated PO, so that the transmission position of the first channel can be flexibly configured.

[0240] Example 3: Providing an alarm message using the first signal

[0241] In Example 3, the embodiment of the present application can use a first signal (such as a reference signal) to carry an alarm message. In this case, the first signal can also be referred to as or understood as an alarm signal. When the embodiment of the present application uses the first signal to carry the alarm message, the terminal device does not need to synchronize with the network device in advance when receiving the first signal, which helps to reduce the complexity of reception. In addition, when the embodiment of the present application uses the first signal to carry the alarm message, the transmission position of the first signal can be flexibly configured.

[0242] In some embodiments, the first signal may include a first sequence. In some embodiments, the first sequence included in the first signal may be used to provide an alert message.

[0243] In some embodiments, the first sequence included in the first signal can be used to indicate whether the physical layer of the terminal device reports an alarm message to a higher layer.

[0244] In some embodiments, the first sequence can be associated with one or more POs. In this way, the first sequence can be used to provide an alarm message to one or more terminal devices corresponding to the associated one or more POs. For example, the embodiment of the present application can associate the first sequence with indivual( is a positive integer greater than or equal to 1) PO association, so that through the first sequence to The terminal equipment in each PO provides an alarm message.

[0245] In some embodiments, after the physical layer of a terminal device receives the first signal or alarm message sent by the network device, it may report the alarm message to the higher layer of the terminal device. In this way, the higher layer of the terminal device may determine the subsequent behavior of the terminal device based on the alarm message. For example, the alarm message may be used to instruct the terminal device to move or move to a location with better signal reception quality. In this case, the higher layer of the terminal device may move to a location with better signal reception quality according to the instruction of the alarm message to facilitate subsequent communication with the network device.

[0246] For example, if the terminal device fails to receive a paging message or a system message, the terminal device can determine whether to report an alarm message to a higher layer based on the received first sequence to instruct the terminal device to move to a location with better signal reception quality, thereby helping to improve the success rate of the terminal device in further receiving or sending data channels.

[0247] In some embodiments, after the upper layer of the first terminal device receives the alarm message, it can determine the subsequent communication behavior of the terminal device based on the alarm message, for example, instructing the terminal device to move to a location with better signal reception quality; or, ignore the alarm message so that the terminal device can continue to communicate with the network device at the current location (for example, re-receive the data channel).

[0248] Considering that multiple terminal devices may monitor the same PO, in order to reduce the false alarm probability between different terminal devices in the same PO, as a feasible solution, the embodiment of the present application can use the first sequence to indicate whether the physical layer of the terminal device needs to report alarm information to the upper layer, thereby reducing the false alarm probability.

[0249] As an implementation, the first sequence may indicate multiple terminal device groups to indicate whether each terminal device in the multiple terminal device groups reports an alarm message to a higher layer. For example, the first sequence may indicate whether a terminal device in each terminal device group in one or more associated POs reports an alarm message to its own higher layer.

[0250] As another implementation manner, the first sequence may indicate a terminal device group to indicate whether each terminal device in the terminal device group reports an alarm message to a higher layer.

[0251] In some embodiments, the first sequence may include one or more values, each of which may correspond to multiple terminal device groups. In some embodiments, each of the one or more values ​​may be used to indicate whether the physical layer of each terminal device in the multiple terminal device groups reports an alarm message to its own upper layer.

[0252] In some embodiments, the first sequence may include one or more values, each of which may correspond to a terminal device group. In some embodiments, each of the one or more values ​​may be used to indicate whether the physical layer of each terminal device in the terminal device group reports an alarm message to its own upper layer.

[0253] In some implementations, first, the first sequence can be compared with PO association, so that through the first sequence to The terminal devices in each PO can provide an alarm message. Afterwards, the terminal devices in each PO can be divided into one or more terminal device groups, each of which can contain one or more terminal devices. For example, the terminal devices in each PO can be divided into one or more terminal device groups. Terminal devices are divided into Terminal device groups. For the relevant introduction on how to determine the number of terminal devices in each PO, please refer to the previous article and will not be repeated here. In this way, it is possible to indicate whether an alarm message needs to be reported based on the granularity of the terminal device group. For example, it can be determined based on the number of POs. and the number of terminal device groups Determine the number Z of the first sequence.

[0254] Several implementations of how to use the first sequence to indicate whether an alarm message needs to be reported are given below.

[0255] Implementation method 1:

[0256] Each of the one or more values ​​corresponds to a plurality of terminal device groups, and each value is used to indicate whether the physical layer of each terminal device in the corresponding plurality of terminal device groups reports an alarm message to a higher layer.

[0257] For example, different first sequences can carry The number Z of the first sequence can be equal to In other words, it is necessary The first sequence carries All possible alarm messages (or first indication information) corresponding to the terminal device group.

[0258] As an example, take the case where the first sequence needs to carry the first indication information of two terminal device groups (terminal device group A, terminal device group B), and the first indication information of each terminal device group includes two possible situations: reporting / not reporting the alarm message to the upper layer. In this case, the number of first sequences required is Z = 2 2=4. That is, in this case, four first sequences are required to indicate all possible first indication information corresponding to the two terminal device groups. The four first sequences are (terminal device group A reports, terminal device group B reports), (terminal device group A does not report, terminal device group B reports), (terminal device group A reports, terminal device group B does not report), and (terminal device group A does not report, terminal device group B does not report).

[0259] A possible process example of implementation mode 1 is given below in conjunction with Figure 10. The process shown in Figure 10 may include steps S1010 to S1030.

[0260] In step S1010, the first terminal device fails to receive a paging message / system message.

[0261] In step S1020 , the first terminal device determines first indication information of the terminal device group indicated by the first sequence.

[0262] For example, the first terminal device determines, based on the first sequence, the first indication information corresponding to each of the multiple terminal devices corresponding to the first sequence. Taking the first terminal device belonging to terminal device group A as an example, assuming that the first sequence is (terminal device group A reports, terminal device group B reports), the first terminal device determines that the first indication information corresponding to terminal device group A is that each terminal device in terminal device A reports an alarm message to the upper layer.

[0263] In step S1030, the first terminal device determines whether to report an alarm message to a higher layer according to the first indication information of the terminal device group indicated by the first sequence.

[0264] Taking the terminal device group to which the first terminal device belongs as the first terminal device group as an example, if the first sequence indicates that each terminal device in the first terminal device group reports an alarm message to the upper layer, the physical layer of the first terminal device determines to report the alarm message to the upper layer; if the first sequence indicates that each terminal device in the first terminal device group does not report the alarm message to the upper layer, the physical layer of the first terminal device determines not to report the alarm message to the upper layer.

[0265] Implementation 2:

[0266] Each of the one or more values ​​corresponds to a terminal device group, and each value is used to indicate whether the physical layer of each terminal device in the corresponding terminal device group reports an alarm message to the upper layer. For example, one of the one or more values ​​may indicate the index of a terminal device group. In this case, the number Z of the first sequence may be equal to For the terminal group indicated by the first sequence, each terminal device in the terminal device group may report an alarm message to its own upper layer, or may not report an alarm message to its own upper layer.

[0267] As an example, when the terminal device group indicated by the first sequence is predefined, preconfigured, or network configured to report an alarm message to its own upper layer, then each terminal device in the terminal device group indicated by the first sequence can report an alarm message to its own upper layer, and the terminal devices in other terminal device groups may not report an alarm message to their own upper layer.

[0268] As another example, when the terminal device group indicated by the first sequence is predefined, preconfigured, or network configured not to report alarm messages to its own upper layer, then each terminal device in the terminal device group indicated by the first sequence may not report alarm messages to its own upper layer, and terminal devices in other terminal device groups may report alarm messages to their own upper layers.

[0269] A possible process example of implementation mode 2 is given below in conjunction with Figure 11. The process shown in Figure 11 may include steps S1110 to S1130.

[0270] In step S1110, the first terminal device fails to receive a paging message / system message.

[0271] In step S1120 , the first terminal device determines an index of the terminal device group indicated by the first sequence.

[0272] Taking the terminal device group to which the first terminal device belongs as the first terminal device group as an example, the first terminal device may determine whether the index of the terminal device group indicated by the first sequence includes the index of the first terminal device group to determine whether to report an alarm message to a higher layer.

[0273] In step S1130 , the first terminal device determines whether to report an alarm message to a higher layer according to the index of the terminal device group indicated by the first sequence.

[0274] Taking the terminal device group to which the first terminal device belongs as the first terminal device group as an example, as a possible implementation method, if the index of the terminal device group indicated by the first sequence includes the index of the first terminal device group, the physical layer of the first terminal device determines to report the alarm message to the upper layer; if the index of the terminal device group indicated by the first sequence does not include the index of the first terminal device group, the physical layer of the first terminal device determines not to report the alarm message to the upper layer. As another possible implementation method, if the index of the terminal device group indicated by the first sequence includes the index of the first terminal device group, the physical layer of the first terminal device determines not to report the alarm message to the upper layer; if the index of the terminal device group indicated by the first sequence does not include the index of the first terminal device group, the physical layer of the first terminal device determines to report the alarm message to the upper layer.

[0275] In some embodiments, if the first terminal device belongs to a first terminal device group, and the first sequence indicates that the physical layer of each terminal device in the first terminal device group reports an alarm message to the upper layer of each terminal device, then the physical layer of the first terminal device can report the alarm message to the upper layer of the first terminal device.

[0276] In some embodiments, if the first terminal device belongs to a first terminal device group, and the first sequence indicates that the physical layer of each terminal device in the first terminal device group does not report an alarm message to the upper layer of each terminal device, then the physical layer of the first terminal device may not report an alarm message to the upper layer of the first terminal device.

[0277] In some embodiments, a terminal device (such as a first terminal device) may detect a first signal to obtain an alarm message and / or first indication information. For example, the terminal device may detect the first signal at a first detection opportunity. The first detection opportunity is described below.

[0278] In some embodiments, the first detection opportunity may include a group of signal detection opportunities, or in other words, the first detection opportunity may include multiple signal detection opportunities.

[0279] In some embodiments, the first detection opportunity may include S*M consecutive signal detection opportunities, where S is the number of SSBs actually transmitted, and M is the number of signal detection opportunities corresponding to each SSB.

[0280] In some embodiments, the (m*S+K)th signal detection opportunity for carrying the warning message in the first detection opportunity corresponds to the Kth transmitted SSB, where m=0, 1, ..., M-1; and K=1, 2, ..., S.

[0281] In some embodiments, the signal detection opportunities for carrying alarm messages can be numbered sequentially starting from the first signal detection opportunity for carrying alarm messages in the first detection opportunities. For example, they can be numbered sequentially from zero starting from the first signal detection opportunity for carrying alarm messages in the first detection opportunities.

[0282] In some embodiments, if the terminal device detects an alarm message in a first detection opportunity, the terminal device may not detect a subsequent signal detection opportunity associated with the first detection opportunity.

[0283] In some embodiments, a DRX cycle of a terminal device may include one or more first detection opportunities. For example, a DRX cycle of a terminal device may include one first detection opportunity. In this case, the terminal device may detect one first detection opportunity in each DRX cycle. Alternatively, a DRX cycle of a terminal device may include multiple first detection opportunities. For example, the network may additionally configure the period of the first detection opportunity so that a DRX cycle may include multiple first detection opportunities. In this case, the terminal device may detect one or more first detection opportunities in each DRX cycle.

[0284] In some embodiments, the terminal device detecting the first signal at the first detection opportunity can be understood as the terminal device detecting the first signal at a group of signal detection opportunities included in the first detection opportunity.

[0285] The embodiment of the present application does not specifically limit the method for determining the time domain position of the first detection opportunity. For example, the time domain position of the first detection opportunity can be determined based on one or more of the following: the time domain position of one of the one or more POs associated with the first detection opportunity or the first sequence; a third offset; and a fourth offset. The third offset can be a frame-level offset, and the fourth offset can be a symbol-level offset.

[0286] In some embodiments, the time domain position of one of the one or more POs associated with the first detection opportunity or the first sequence can be understood as a reference point for determining the time domain position of the first detection opportunity. That is to say, in an embodiment of the present application, the time domain position of the first detection opportunity can be determined based on a reference point and an offset. For example, an embodiment of the present application can use one of the one or more POs associated with the first detection opportunity or the first sequence as a target PO, and determine the reference point based on the target PO. After that, the time domain position of the first detection opportunity can be determined based on the reference point and the offset (such as determining the first signal detection opportunity of the first detection opportunity). It should be noted that any one of the one or more POs associated with the first detection opportunity or the first sequence can be used as a target PO, and the embodiment of the present application is not limited to this. For example, the first PO of the one or more POs associated with the first detection opportunity or the first sequence can be used as a target PO. Alternatively, the last PO of the one or more POs associated with the first detection opportunity or the first sequence can be used as a target PO, etc.

[0287] The embodiment of the present application does not limit the method for determining the reference point of the time domain position of the first detection opportunity. The reference point can be determined based on the time domain position of any one of the one or more POs associated with the first detection opportunity or the first sequence. For example, the reference point can be the starting point of the frame where the first PO of the one or more POs associated with the first detection opportunity or the first sequence is located, or the frame where it is offset by a third offset. Alternatively, the reference point can be the end point of the frame where the first PO of the one or more POs associated with the first detection opportunity or the first sequence is located, or the frame where it is offset by a third offset. Alternatively, the reference point can be the starting point of the frame where the last PO of the one or more POs associated with the first detection opportunity or the first sequence is located, or the frame where it is offset by a third offset, etc.

[0288] As a possible implementation method, first, the starting point of the PF where the first PO in the first detection moment or one or more POs associated with the first sequence is located can be offset for the first time, and the offset of the first offset is the third offset (i.e., the offset at the frame level). The offsetted PF is used as a reference frame, and the starting point of the reference frame is used as a reference point; thereafter, the time domain position of the first detection moment can be determined based on the reference point and the fourth offset (i.e., the offset at the symbol level), for example, the first signal detection moment of the first detection moment can be determined.

[0289] In some embodiments, by configuring different third offsets and / or fourth offsets, the first detection timing can be located before its associated PO, or after its associated PO, or at the same time domain position as its associated PO, so that the transmission position of the first signal can be flexibly configured.

[0290] In some embodiments, whether the network device provides the alarm message to the terminal device (eg, the first terminal device) through the first channel or the first signal is determined based on the capability of the terminal device.

[0291] In some embodiments, the terminal device may report capability information to the network device to indicate that the terminal device supports receiving alarm messages. In this way, the network device may provide the alarm message to the terminal device via a first channel or a first signal. For example, in some embodiments, before the terminal device receives the first channel or the first signal sent by the network device, the method of the embodiment of the present application may further include the following steps: the terminal device sends first capability information to the network device, where the first capability information is used to indicate that the terminal device supports receiving alarm messages.

[0292] For example, after a terminal device sends first capability information to a network device, the network device may provide an alarm message to the terminal device via a first channel and indicate to the terminal device via a first information field or a second information field whether the alarm message needs to be reported to a higher layer. Alternatively, after a terminal device sends first capability information to a network device, the network device may provide an alarm message to the terminal device via a first signal and indicate to the terminal device via a first sequence whether the alarm message needs to be reported to a higher layer.

[0293] The method embodiment of the present application is described in detail above in conjunction with Figures 1 to 11. The device embodiment of the present application is described in detail below in conjunction with Figures 12 to 14. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment. Therefore, for parts not described in detail, reference can be made to the above method embodiment.

[0294] FIG12 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application. The terminal device 1200 shown in FIG12 can be any of the first terminal devices mentioned above. The terminal device 1200 can include a first receiving module 1210.

[0295] The first receiving module 1210 may be configured to receive a first channel or a first signal sent by a network device, where the first channel or the first signal is used to provide an alarm message.

[0296] Optionally, the first channel is a PDCCH used to schedule a data channel.

[0297] Optionally, the first channel includes a first information field, where the first information field is used to indicate first information, where the first information is used to indicate whether the physical layer of the first terminal device reports the alarm message to a higher layer of the first terminal device.

[0298] Optionally, the first information field includes one or more bits, each of the one or more bits corresponds to a terminal device group, and each bit is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the higher layer of each terminal device.

[0299] Optionally, the first information field includes one or more bits, the one or more bits corresponding to a terminal device group, and the one or more bits are used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the higher layer of each terminal device.

[0300] Optionally, the terminal device also includes a first reporting module 1220, which is used to: if the first terminal device belongs to a first terminal device group, and the first information indicates that the physical layer of each terminal device in the first terminal device group reports the alarm message to the high-level layer of each terminal device, then the physical layer of the first terminal device reports the alarm message to the high-level layer of the first terminal device; and / or if the first terminal device belongs to a first terminal device group, and the first information indicates that the physical layer of each terminal device in the first terminal device group does not report the alarm message to the high-level layer of each terminal device, then the physical layer of the first terminal device does not report the alarm message to the high-level layer of the first terminal device.

[0301] Optionally, the data channel carries a paging message and / or a system message.

[0302] Optionally, the first channel is a dedicated channel for carrying the alarm message.

[0303] Optionally, the first channel is a PDCCH containing a first DCI format, and the first DCI format is used to provide the warning message.

[0304] Optionally, the first DCI format is associated with one or more POs, and the first DCI format is used to provide the alarm message to one or more terminal devices corresponding to the one or more POs.

[0305] Optionally, the first DCI format includes a second information field, where the second information field is used to indicate first information, and the first information is used to indicate whether the physical layer of the first terminal device reports the alarm message to the higher layer of the first terminal device.

[0306] Optionally, the second information field includes one or more bits, each of the one or more bits corresponds to a terminal device group, and each bit is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the higher layer of each terminal device.

[0307] Optionally, the second information field includes one or more bits, the one or more bits corresponding to a terminal device group, and the one or more bits are used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the higher layer of each terminal device.

[0308] Optionally, the terminal device also includes a second reporting module, which is used to: if the first terminal device belongs to a first terminal device group, and the first information indicates that the physical layer of each terminal device in the first terminal device group reports the alarm message to the high-level layer of each terminal device, then the physical layer of the first terminal device reports the alarm message to the high-level layer of the first terminal device; and / or if the first terminal device belongs to a first terminal device group, and the first information is used to indicate that the physical layer of each terminal device in the first terminal device group does not report the alarm message to the high-level layer of each terminal device, then the physical layer of the first terminal device does not report the alarm message to the high-level layer of the first terminal device.

[0309] Optionally, the first channel is scrambled using a first RNTI, where the first RNTI is a PEI-RNTI or an RNTI dedicated to the alert message.

[0310] Optionally, the terminal device further includes: a monitoring module, configured to monitor the first channel at a first opportunity, and a DRX cycle of the first terminal device includes one or more first opportunities.

[0311] Optionally, the time domain position of the first opportunity is determined based on one or more of the following: the time domain position of a PO among one or more POs associated with the first opportunity; a first offset, the first offset is a frame-level offset; a second offset, the second offset is a symbol-level offset.

[0312] Optionally, the first signal includes a first sequence, and the first sequence is used to indicate whether the physical layer of the first terminal device reports the alarm message to the higher layer of the first terminal device.

[0313] Optionally, the first sequence includes one or more values, each of the one or more values ​​corresponds to multiple terminal device groups, and each value is used to indicate whether the physical layer of each terminal device in the multiple terminal device groups reports the alarm message to the higher layer of each terminal device.

[0314] Optionally, the first sequence includes one or more values, each of the one or more values ​​corresponds to a terminal device group, and each value is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the higher layer of each terminal device.

[0315] Optionally, the terminal device also includes a third reporting module, which is used to: if the first terminal device belongs to the first terminal device group, and the first sequence indicates that the physical layer of each terminal device in the first terminal device group reports the alarm message to the high-level layer of each terminal device, then the physical layer of the first terminal device reports the alarm message to the high-level layer of the first terminal device; and / or if the first terminal device belongs to the first terminal device group, and the first sequence indicates that the physical layer of each terminal device in the first terminal device group does not report the alarm message to the high-level layer of each terminal device, then the physical layer of the first terminal device does not report the alarm message to the high-level layer of the first terminal device.

[0316] Optionally, the terminal device further includes: a detection module, configured to detect the first signal at a first detection opportunity, and a DRX cycle of the first terminal device includes one or more first detection opportunities.

[0317] Optionally, the time domain position of the first detection opportunity is determined based on one or more of the following: the time domain position of one PO among one or more POs associated with the first detection opportunity; a third offset, the third offset is a frame-level offset; and a fourth offset, the fourth offset is a symbol-level offset.

[0318] Optionally, the terminal device also includes: a sending module for sending first capability information to the network device, the first capability information being used to indicate that the first terminal device supports receiving the alarm message; and / or a second receiving module for receiving first configuration information sent by the network device, the first configuration information being used to configure the first terminal device to receive the alarm message.

[0319] Optionally, the alarm message is used to indicate one or more of the following: indicating that the first terminal device has moved; indicating that the first terminal device has moved from a first position to a second position, and the signal reception quality of the first terminal device at the second position is higher than the signal reception quality at the first position; indicating that the current signal reception quality of the first terminal device is poor.

[0320] Optionally, the first receiving module 1210 may be a transceiver 1430. The terminal device 1200 may further include a processor 1410 and a memory 1420, as specifically shown in FIG14 .

[0321] FIG13 is a schematic diagram of the structure of a network device according to an embodiment of the present application. The network device 1300 shown in FIG13 may include a first sending module 1310 .

[0322] The first sending module 1310 may be configured to send a first channel or a first signal to a first terminal device, where the first channel or the first signal is used to provide an alarm message.

[0323] Optionally, the first channel is a PDCCH used to schedule a data channel.

[0324] Optionally, the first channel includes a first information field, where the first information field is used to indicate first information, where the first information is used to indicate whether the physical layer of the first terminal device reports the alarm message to a higher layer of the first terminal device.

[0325] Optionally, the first information field includes one or more bits, each of the one or more bits corresponds to a terminal device group, and each bit is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the higher layer of each terminal device.

[0326] Optionally, the first information field includes one or more bits, the one or more bits corresponding to a terminal device group, and the one or more bits are used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the higher layer of each terminal device.

[0327] Optionally, the data channel carries a paging message and / or a system message.

[0328] Optionally, the first channel is a dedicated channel for carrying the alarm message.

[0329] Optionally, the first channel is a PDCCH containing a first DCI format, and the first DCI format is used to provide the warning message.

[0330] Optionally, the first DCI format is associated with one or more POs, and the first DCI format is used to provide the alarm message to one or more terminal devices corresponding to the one or more POs.

[0331] Optionally, the first DCI format includes a second information field, where the second information field is used to indicate first information, and the first information is used to indicate whether the physical layer of the first terminal device reports the alarm message to the higher layer of the first terminal device.

[0332] Optionally, the second information field includes one or more bits, each of the one or more bits corresponds to a terminal device group, and each bit is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the higher layer of each terminal device.

[0333] Optionally, the second information field includes one or more bits, the one or more bits corresponding to a terminal device group, and the one or more bits are used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the higher layer of each terminal device.

[0334] Optionally, the first channel is scrambled using a first RNTI, where the first RNTI is a PEI-RNTI or an RNTI dedicated to the alert message.

[0335] Optionally, the first channel is monitored at a first timing, and a DRX cycle of the first terminal device includes one or more of the first timings.

[0336] Optionally, the time domain position of the first listening opportunity is determined based on one or more of the following: the time domain position of a PO among one or more POs associated with the first opportunity; a first offset, the first offset is a frame-level offset; a second offset, the second offset is a symbol-level offset.

[0337] Optionally, the first signal includes a first sequence, and the first sequence is used to indicate whether the physical layer of the first terminal device reports the alarm message to the higher layer of the first terminal device.

[0338] Optionally, the first sequence includes one or more values, each of the one or more values ​​corresponds to multiple terminal device groups, and each value is used to indicate whether the physical layer of each terminal device in the multiple terminal device groups reports the alarm message to the higher layer of each terminal device.

[0339] Optionally, the first sequence includes one or more values, each of the one or more values ​​corresponds to a terminal device group, and each value is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the higher layer of each terminal device.

[0340] Optionally, the first signal is detected at a first detection opportunity, and a DRX cycle of the first terminal device includes one or more first detection opportunities.

[0341] Optionally, the time domain position of the first detection opportunity is determined based on one or more of the following: the time domain position of one PO among one or more POs associated with the first detection opportunity; a third offset, the third offset is a frame-level offset; and a fourth offset, the fourth offset is a symbol-level offset.

[0342] Optionally, the network device also includes: a receiving module 1320, used to receive first capability information sent by the first terminal device, the first capability information being used to indicate that the first terminal device supports receiving the alarm message; and / or a second sending module 1330, used to send first configuration information to the first terminal device, the first configuration information being used to configure the first terminal device to receive the alarm message.

[0343] Optionally, the alarm message is used to indicate one or more of the following: indicating that the first terminal device has moved; indicating that the first terminal device has moved from a first position to a second position, and the signal reception quality of the first terminal device at the second position is higher than the signal reception quality at the first position; indicating that the current signal reception quality of the first terminal device is poor.

[0344] Optionally, the first sending module 1310 may be a transceiver 1430. The network device 1300 may further include a processor 1410 and a memory 1420, as specifically shown in FIG14 .

[0345] Figure 14 is a schematic block diagram of a communication device according to an embodiment of the present application. The dashed lines in Figure 14 indicate that the unit or module is optional. Device 1400 may be used to implement the method described in the above method embodiment. Device 1400 may be a chip, a terminal device, or a network device.

[0346] The device 1400 may include one or more processors 1410. The processor 1410 may support the device 1400 to implement the method described in the method embodiment above. The processor 1410 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 be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0347] The apparatus 1400 may further include one or more memories 1420. The memories 1420 store programs that can be executed by the processor 1410, causing the processor 1410 to perform the methods described in the above method embodiments. The memories 1420 may be independent of the processor 1410 or integrated into the processor 1410.

[0348] The apparatus 1400 may further include a transceiver 1430. The processor 1410 may communicate with other devices or chips via the transceiver 1430. For example, the processor 1410 may transmit and receive data with other devices or chips via the transceiver 1430.

[0349] 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 network device provided in the present application, and the program enables a computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0350] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to a terminal device or network device provided in the present application, and the program causes a computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0351] The present application also provides a computer program that can be applied to a terminal device or network device provided in the present application, and enables a computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0352] It should be understood that 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 this application and are not intended to limit this 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 variations thereof are intended to cover non-exclusive inclusions.

[0353] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0354] In the embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0355] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0356] In the embodiments of this application, the term "include" can refer to direct inclusion or indirect inclusion. Alternatively, the term "include" in the embodiments of this application can be replaced with "indicates" or "is used to determine." For example, "A includes B" can be replaced with "A indicates B" or "A is used to determine B."

[0357] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0358] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications 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.

[0359] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. 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 document generally indicates that the related objects are in an "or" relationship.

[0360] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0361] In the several embodiments provided in this 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 merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. 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.

[0362] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0363] 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.

[0364] 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 one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0365] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that: include: The first terminal device receives a first channel or a first signal sent by a network device, where the first channel or the first signal is used to provide an alarm message.

2. The method according to claim 1, characterized in that The first channel is a PDCCH used for scheduling a data channel.

3. The method according to claim 2, characterized in that The first channel includes a first information field, where the first information field is used to indicate first information, where the first information is used to indicate whether the physical layer of the first terminal device reports the alarm message to a higher layer of the first terminal device.

4. The method according to claim 3, characterized in that The first information field includes one or more bits, each of the one or more bits corresponds to a terminal device group, and each bit is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

5. The method according to claim 3, characterized in that: The first information field includes one or more bits, and the one or more bits correspond to a terminal device group. The one or more bits are used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

6. The method according to any one of claims 3 to 5, characterized in that: The method further comprises: If the first terminal device belongs to a first terminal device group, and the first information indicates that the physical layer of each terminal device in the first terminal device group reports the alarm message to the high layer of each terminal device, then the physical layer of the first terminal device reports the alarm message to the high layer of the first terminal device; and / or If the first terminal device belongs to a first terminal device group, and the first information indicates that the physical layer of each terminal device in the first terminal device group does not report the alarm message to the high layer of each terminal device, the physical layer of the first terminal device does not report the alarm message to the high layer of the first terminal device.

7. The method according to any one of claims 2 to 6, characterized in that: The data channel carries paging messages and / or system messages.

8. The method according to claim 1, characterized in that The first channel is a dedicated channel for carrying the alarm message.

9. The method according to claim 8, characterized in that The first channel is a PDCCH including a first DCI format, and the first DCI format is used to provide the warning message.

10. The method according to claim 9, characterized in that The first DCI format is associated with one or more POs, and the first DCI format is used to provide the alarm message to one or more terminal devices corresponding to the one or more POs.

11. The method according to claim 9 or 10, characterized in that: The first DCI format includes a second information field, where the second information field is used to indicate first information, where the first information is used to indicate whether the physical layer of the first terminal device reports the alarm message to the higher layer of the first terminal device.

12. The method according to claim 11, characterized in that The second information field includes one or more bits, each of the one or more bits corresponds to a terminal device group, and each bit is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

13. The method according to claim 11, characterized in that The second information field includes one or more bits, where the one or more bits correspond to a terminal device group, and the one or more bits are used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

14. The method according to any one of claims 11 to 13, characterized in that The method further comprises: If the first terminal device belongs to a first terminal device group, and the first information indicates that the physical layer of each terminal device in the first terminal device group reports the alarm message to the high layer of each terminal device, then the physical layer of the first terminal device reports the alarm message to the high layer of the first terminal device; and / or If the first terminal device belongs to a first terminal device group, and the first information is used to instruct the physical layer of each terminal device in the first terminal device group not to report the alarm message to the high layer of each terminal device, then the physical layer of the first terminal device does not report the alarm message to the high layer of the first terminal device.

15. The method according to any one of claims 8 to 14, characterized in that The first channel is scrambled using a first RNTI, where the first RNTI is a PEI-RNTI or an RNTI specific to the warning message.

16. The method according to any one of claims 8 to 15, characterized in that The method further comprises: The first terminal device monitors the first channel at a first timing, and a DRX cycle of the first terminal device includes one or more first timings.

17. The method according to claim 16, characterized in that The time domain position of the first opportunity is determined according to one or more of the following: A time domain location of a PO among the one or more POs associated with the first opportunity; A first offset, wherein the first offset is a frame-level offset; A second offset, where the second offset is a symbol-level offset.

18. The method according to claim 1, characterized in that The first signal includes a first sequence, and the first sequence is used to indicate whether the physical layer of the first terminal device reports the alarm message to the higher layer of the first terminal device.

19. The method according to claim 18, characterized in that The first sequence includes one or more values, each of the one or more values ​​corresponds to multiple terminal device groups, and each value is used to indicate whether the physical layer of each terminal device in the multiple terminal device groups reports the alarm message to the high layer of each terminal device.

20. The method according to claim 18, characterized in that The first sequence includes one or more values, each of the one or more values ​​corresponds to a terminal device group, and each value is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

21. The method according to any one of claims 18 to 20, characterized in that The method further comprises: If the first terminal device belongs to a first terminal device group, and the first sequence indicates that the physical layer of each terminal device in the first terminal device group reports the alarm message to the high layer of each terminal device, then the physical layer of the first terminal device reports the alarm message to the high layer of the first terminal device; and / or If the first terminal device belongs to a first terminal device group, and the first sequence indicates that the physical layer of each terminal device in the first terminal device group does not report the alarm message to the high layer of each terminal device, then the physical layer of the first terminal device does not report the alarm message to the high layer of the first terminal device.

22. The method according to any one of claims 18 to 21, characterized in that The method further comprises: The first terminal device detects the first signal at a first detection opportunity, and a DRX cycle of the first terminal device includes one or more first detection opportunities.

23. The method according to claim 22, characterized in that The time domain position of the first detection opportunity is determined according to one or more of the following: A time domain position of a PO among the one or more POs associated with the first detection opportunity; A third offset, wherein the third offset is a frame-level offset; A fourth offset, wherein the fourth offset is a symbol-level offset.

24. The method according to any one of claims 1 to 23, characterized in that Before the first terminal device receives the first channel or the first signal sent by the network device, the method further includes: The first terminal device sends first capability information to the network device, where the first capability information is used to indicate that the first terminal device supports receiving the alarm message; and / or The first terminal device receives first configuration information sent by the network device, where the first configuration information is used to configure the first terminal device to receive the alarm message.

25. The method according to any one of claims 1 to 24, characterized in that The alarm message is used to indicate one or more of the following: instructing the first terminal device to move; Instructing the first terminal device to move from a first position to a second position, wherein the signal reception quality of the first terminal device at the second position is higher than the signal reception quality at the first position; Indicates that the current signal reception quality of the first terminal device is poor.

26. A method of wireless communication, characterized in that: include: The network device sends a first channel or a first signal to a first terminal device, where the first channel or the first signal is used to provide an alarm message.

27. The method according to claim 26, characterized in that The first channel is a PDCCH used for scheduling a data channel.

28. The method according to claim 27, characterized in that The first channel includes a first information field, where the first information field is used to indicate first information, where the first information is used to indicate whether the physical layer of the first terminal device reports the alarm message to a higher layer of the first terminal device.

29. The method according to claim 28, characterized in that The first information field includes one or more bits, each of the one or more bits corresponds to a terminal device group, and each bit is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

30. The method according to claim 28, characterized in that The first information field includes one or more bits, and the one or more bits correspond to a terminal device group. The one or more bits are used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

31. The method according to any one of claims 27 to 30, characterized in that The data channel carries paging messages and / or system messages.

32. The method according to claim 26, characterized in that The first channel is a dedicated channel for carrying the alarm message.

33. The method according to claim 32, characterized in that The first channel is a PDCCH including a first DCI format, and the first DCI format is used to provide the warning message.

34. The method according to claim 33, characterized in that The first DCI format is associated with one or more POs, and the first DCI format is used to provide the alarm message to one or more terminal devices corresponding to the one or more POs.

35. The method according to claim 33 or 34, characterized in that The first DCI format includes a second information field, where the second information field is used to indicate first information, where the first information is used to indicate whether the physical layer of the first terminal device reports the alarm message to the higher layer of the first terminal device.

36. The method according to claim 35, characterized in that The second information field includes one or more bits, each of the one or more bits corresponds to a terminal device group, and each bit is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

37. The method according to claim 35, characterized in that The second information field includes one or more bits, where the one or more bits correspond to a terminal device group, and the one or more bits are used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

38. The method according to any one of claims 32 to 37, characterized in that The first channel is scrambled using a first RNTI, where the first RNTI is a PEI-RNTI or an RNTI specific to the warning message.

39. The method according to any one of claims 32 to 38, characterized in that The first channel is monitored at a first timing, and a DRX cycle of the first terminal device includes one or more of the first timings.

40. The method according to claim 39, characterized in that The time domain position of the first monitoring opportunity is determined according to one or more of the following: A time domain location of a PO among the one or more POs associated with the first opportunity; A first offset, wherein the first offset is an offset at a frame level; A second offset, where the second offset is a symbol-level offset.

41. The method according to claim 26, characterized in that The first signal includes a first sequence, and the first sequence is used to indicate whether the physical layer of the first terminal device reports the alarm message to the higher layer of the first terminal device.

42. The method according to claim 41, characterized in that The first sequence includes one or more values, each of the one or more values ​​corresponds to multiple terminal device groups, and each value is used to indicate whether the physical layer of each terminal device in the multiple terminal device groups reports the alarm message to the high layer of each terminal device.

43. The method according to claim 41, characterized in that The first sequence includes one or more values, each of the one or more values ​​corresponds to a terminal device group, and each value is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

44. The method according to any one of claims 41 to 43, characterized in that The first signal is detected at a first detection opportunity, and a DRX cycle of the first terminal device includes one or more first detection opportunities.

45. The method according to claim 44, characterized in that The time domain position of the first detection opportunity is determined according to one or more of the following: A time domain position of a PO among the one or more POs associated with the first detection opportunity; A third offset, wherein the third offset is a frame-level offset; A fourth offset, wherein the fourth offset is a symbol-level offset.

46. ​​The method according to any one of claims 26 to 45, characterized in that Before the network device sends the first channel or the first signal to the first terminal device, the method further includes: The network device receives first capability information sent by the first terminal device, where the first capability information is used to indicate that the first terminal device supports receiving the alarm message; and / or The network device sends first configuration information to the first terminal device, where the first configuration information is used to configure the first terminal device to receive the alarm message.

47. The method according to any one of claims 26 to 46, characterized in that The alarm message is used to indicate one or more of the following: instructing the first terminal device to move; Instructing the first terminal device to move from a first position to a second position, wherein the signal reception quality of the first terminal device at the second position is higher than the signal reception quality at the first position; Indicates that the current signal reception quality of the first terminal device is poor.

48. A terminal device, characterized in that: The terminal device is a first terminal device, and the terminal device includes: The first receiving module is used to receive a first channel or a first signal sent by a network device, where the first channel or the first signal is used to provide an alarm message.

49. The terminal device according to claim 48, characterized in that: The first channel is a PDCCH used for scheduling a data channel.

50. The terminal device according to claim 49, characterized in that: The first channel includes a first information field, where the first information field is used to indicate first information, where the first information is used to indicate whether the physical layer of the first terminal device reports the alarm message to a higher layer of the first terminal device.

51. The terminal device according to claim 50, characterized in that: The first information field includes one or more bits, each of the one or more bits corresponds to a terminal device group, and each bit is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

52. The terminal device according to claim 50, characterized in that: The first information field includes one or more bits, and the one or more bits correspond to a terminal device group. The one or more bits are used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

53. The terminal device according to any one of claims 50-52, characterized in that: The terminal device further includes a first reporting module, and the first reporting module is used to: If the first terminal device belongs to a first terminal device group, and the first information indicates that the physical layer of each terminal device in the first terminal device group reports the alarm message to the high layer of each terminal device, the physical layer of the first terminal device reports the alarm message to the high layer of the first terminal device; and / or If the first terminal device belongs to a first terminal device group, and the first information indicates that the physical layer of each terminal device in the first terminal device group does not report the alarm message to the high layer of each terminal device, the physical layer of the first terminal device does not report the alarm message to the high layer of the first terminal device.

54. The terminal device according to any one of claims 49 to 53, characterized in that: The data channel carries paging messages and / or system messages.

55. The terminal device according to claim 48, characterized in that: The first channel is a dedicated channel for carrying the alarm message.

56. The terminal device according to claim 55, characterized in that: The first channel is a PDCCH including a first DCI format, and the first DCI format is used to provide the warning message.

57. The terminal device according to claim 56, characterized in that: The first DCI format is associated with one or more POs, and the first DCI format is used to provide the alarm message to one or more terminal devices corresponding to the one or more POs.

58. The terminal device according to claim 56 or 57, characterized in that: The first DCI format includes a second information field, where the second information field is used to indicate first information, where the first information is used to indicate whether the physical layer of the first terminal device reports the alarm message to the higher layer of the first terminal device.

59. The terminal device according to claim 58, characterized in that: The second information field includes one or more bits, each of the one or more bits corresponds to a terminal device group, and each bit is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

60. The terminal device according to claim 58, characterized in that: The second information field includes one or more bits, where the one or more bits correspond to a terminal device group, and the one or more bits are used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

61. The terminal device according to any one of claims 58 to 60, characterized in that: The terminal device further includes a second reporting module, wherein the second reporting module is configured to: If the first terminal device belongs to a first terminal device group, and the first information indicates that the physical layer of each terminal device in the first terminal device group reports the alarm message to the high layer of each terminal device, the physical layer of the first terminal device reports the alarm message to the high layer of the first terminal device; and / or If the first terminal device belongs to a first terminal device group, and the first information is used to instruct the physical layer of each terminal device in the first terminal device group not to report the alarm message to the high layer of each terminal device, then the physical layer of the first terminal device does not report the alarm message to the high layer of the first terminal device.

62. The terminal device according to any one of claims 55 to 61, characterized in that: The first channel is scrambled using a first RNTI, where the first RNTI is a PEI-RNTI or an RNTI specific to the warning message.

63. The terminal device according to any one of claims 55 to 62, characterized in that: The terminal device further includes: The monitoring module is used to monitor the first channel at a first time, and a DRX cycle of the first terminal device includes one or more of the first times.

64. The terminal device according to claim 63, characterized in that: The time domain position of the first opportunity is determined according to one or more of the following: A time domain location of a PO among the one or more POs associated with the first opportunity; A first offset, wherein the first offset is an offset at a frame level; A second offset, where the second offset is a symbol-level offset.

65. The terminal device according to claim 48, characterized in that: The first signal includes a first sequence, and the first sequence is used to indicate whether the physical layer of the first terminal device reports the alarm message to the higher layer of the first terminal device.

66. The terminal device according to claim 65, characterized in that: The first sequence includes one or more values, each of the one or more values ​​corresponds to multiple terminal device groups, and each value is used to indicate whether the physical layer of each terminal device in the multiple terminal device groups reports the alarm message to the high layer of each terminal device.

67. The terminal device according to claim 65, characterized in that: The first sequence includes one or more values, each of the one or more values ​​corresponds to a terminal device group, and each value is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

68. The terminal device according to any one of claims 65-67, characterized in that: The terminal device further includes a third reporting module, and the third reporting module is used for: If the first terminal device belongs to a first terminal device group, and the first sequence indicates that the physical layer of each terminal device in the first terminal device group reports the alarm message to the high layer of each terminal device, the physical layer of the first terminal device reports the alarm message to the high layer of the first terminal device; and / or If the first terminal device belongs to a first terminal device group, and the first sequence indicates that the physical layer of each terminal device in the first terminal device group does not report the alarm message to the high layer of each terminal device, then the physical layer of the first terminal device does not report the alarm message to the high layer of the first terminal device.

69. The terminal device according to any one of claims 65-68, characterized in that: The terminal device further includes: The detection module is used to detect the first signal at a first detection opportunity, and a DRX cycle of the first terminal device includes one or more of the first detection opportunities.

70. The terminal device according to claim 69, characterized in that: The time domain position of the first detection opportunity is determined according to one or more of the following: A time domain position of a PO among the one or more POs associated with the first detection opportunity; A third offset, wherein the third offset is a frame-level offset; A fourth offset, wherein the fourth offset is a symbol-level offset.

71. The terminal device according to any one of claims 48 to 70, characterized in that: The terminal device further includes: a sending module, configured to send first capability information to the network device, wherein the first capability information is used to indicate that the first terminal device supports receiving the alarm message; and / or The second receiving module is used to receive first configuration information sent by the network device, where the first configuration information is used to configure the first terminal device to receive the alarm message.

72. The terminal device according to any one of claims 48 to 71, characterized in that: The alarm message is used to indicate one or more of the following: instructing the first terminal device to move; Instructing the first terminal device to move from a first position to a second position, wherein the signal reception quality of the first terminal device at the second position is higher than the signal reception quality at the first position; Indicates that the current signal reception quality of the first terminal device is poor.

73. A network device, characterized in that: include: The first sending module is used to send a first channel or a first signal to a first terminal device, where the first channel or the first signal is used to provide an alarm message.

74. The network device according to claim 73, characterized in that The first channel is a PDCCH used for scheduling a data channel.

75. The network device according to claim 74, characterized in that The first channel includes a first information field, where the first information field is used to indicate first information, where the first information is used to indicate whether the physical layer of the first terminal device reports the alarm message to a higher layer of the first terminal device.

76. The network device according to claim 75, characterized in that The first information field includes one or more bits, each of the one or more bits corresponds to a terminal device group, and each bit is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

77. The network device according to claim 75, characterized in that The first information field includes one or more bits, and the one or more bits correspond to a terminal device group. The one or more bits are used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

78. The network device according to any one of claims 74 to 77, characterized in that: The data channel carries paging messages and / or system messages.

79. The network device according to claim 73, characterized in that The first channel is a dedicated channel for carrying the alarm message.

80. The network device according to claim 79, characterized in that The first channel is a PDCCH including a first DCI format, and the first DCI format is used to provide the warning message.

81. The network device according to claim 80, characterized in that: The first DCI format is associated with one or more POs, and the first DCI format is used to provide the alarm message to one or more terminal devices corresponding to the one or more POs.

82. The network device according to claim 80 or 81, characterized in that: The first DCI format includes a second information field, where the second information field is used to indicate first information, where the first information is used to indicate whether the physical layer of the first terminal device reports the alarm message to the higher layer of the first terminal device.

83. The network device according to claim 82, characterized in that: The second information field includes one or more bits, each of the one or more bits corresponds to a terminal device group, and each bit is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

84. The network device according to claim 82, characterized in that The second information field includes one or more bits, where the one or more bits correspond to a terminal device group, and the one or more bits are used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

85. The network device according to any one of claims 79 to 84, characterized in that: The first channel is scrambled using a first RNTI, where the first RNTI is a PEI-RNTI or an RNTI specific to the warning message.

86. The network device according to any one of claims 79 to 85, characterized in that: The first channel is monitored at a first timing, and a DRX cycle of the first terminal device includes one or more of the first timings.

87. The network device according to claim 86, characterized in that The time domain position of the first monitoring opportunity is determined according to one or more of the following: A time domain location of a PO among the one or more POs associated with the first opportunity; A first offset, wherein the first offset is a frame-level offset; A second offset, where the second offset is a symbol-level offset.

88. The network device according to claim 73, characterized in that The first signal includes a first sequence, and the first sequence is used to indicate whether the physical layer of the first terminal device reports the alarm message to the higher layer of the first terminal device.

89. The network device according to claim 88, characterized in that The first sequence includes one or more values, each of the one or more values ​​corresponds to multiple terminal device groups, and each value is used to indicate whether the physical layer of each terminal device in the multiple terminal device groups reports the alarm message to the high layer of each terminal device.

90. The network device according to claim 88, characterized in that The first sequence includes one or more values, each of the one or more values ​​corresponds to a terminal device group, and each value is used to indicate whether the physical layer of each terminal device in the terminal device group reports the alarm message to the high layer of each terminal device.

91. The network device according to any one of claims 88 to 90, characterized in that: The first signal is detected at a first detection opportunity, and a DRX cycle of the first terminal device includes one or more first detection opportunities.

92. The network device according to claim 91, characterized in that: The time domain position of the first detection opportunity is determined according to one or more of the following: A time domain position of a PO among the one or more POs associated with the first detection opportunity; A third offset, wherein the third offset is a frame-level offset; A fourth offset, wherein the fourth offset is a symbol-level offset.

93. The network device according to any one of claims 73 to 92, characterized in that: The network device also includes: a receiving module, configured to receive first capability information sent by the first terminal device, wherein the first capability information is used to indicate that the first terminal device supports receiving the alarm message; and / or The second sending module is used to send first configuration information to the first terminal device, where the first configuration information is used to configure the first terminal device to receive the alarm message.

94. The network device according to any one of claims 73 to 93, characterized in that: The alarm message is used to indicate one or more of the following: instructing the first terminal device to move; instructing the first terminal device to move from a first position to a second position, wherein the signal reception quality of the first terminal device at the second position is higher than the signal reception quality at the first position; Indicates that the current signal reception quality of the first terminal device is poor.

95. A terminal device, characterized in that: The terminal device is a first terminal device, and the terminal device includes a transceiver, a memory and a processor, the memory is used to store programs, and the processor is used to call the programs in the memory so that the terminal device executes the method as described in any one of claims 1-25.

96. A network device, characterized in that: The device comprises a transceiver, 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 so that the network device executes the method as described in any one of claims 26-47.

97. A device, characterized in that It comprises a processor, which is used to call a program from a memory so that the device executes the method as described in any one of claims 1-47.

98. A chip, characterized in that: It 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 described in any one of claims 1 to 47.

99. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 47.

100. A computer program product, characterized in that A program is included, which causes a computer to execute the method as claimed in any one of claims 1 to 47.

101. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 1 to 47.

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