Communication method and communication apparatus

Abstract

The application provides a communication method and a communication device, and applies to the technical field of communication. In the embodiment of the application, the UE only monitors K time domain resources after starting a first receiver (such as an LP-WUR), without blind detection of all listening opportunities, thereby reducing the blind detection range. Moreover, the UE wakes up the MR only when the check process (such as double check) on the signal received in the K time domain resources is passed, which can reduce the probability of MR false wake-up. Finally, the MR of the UE is woken up and only monitors the corresponding search space according to the search space identifier, thereby shortening the working time of the MR and helping to reduce the power consumption of the UE. Further, in the case that the check is not passed, or even if the check is passed but the DCI is not successfully decoded, the UE sends feedback information to the network device to terminate the subsequent sending of the current session, thereby avoiding the network side continuing to occupy resources.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a communication method and a communication device. Background Technology

[0002] The 3rd Generation Partnership Project (3GPP) provides a monitoring and blind detection mechanism for the Physical Downlink Control Channel (PDCCH) of 5G New Radio (NR). To reduce the power consumption of PDCCH blind detection, a low-power-wakeup radio (LR / LP-WUR) and a wake-up signal (LP-WUS) are introduced as pre-triggered mechanisms. This means the main receiver (MR) is only woken up when there is a potential need for downlink control or downlink data. In other words, in this scenario, the UE uses a resident low-power wake-up radio (LP-WUR) to listen for specific waveforms, and only activates the high-power main receiver (MR) to decode the PDCCH when a valid wake-up signal is detected. After the UE's MR is woken up, it requires full-space blind detection, resulting in a long MR operating time and high power consumption. Summary of the Invention

[0003] In view of this, this application provides a communication method, communication device, chip system, computer-readable storage medium, computer program product, and communication system. By introducing a first correspondence (i.e., the mapping relationship between cyclic shift information and search space identifier / DCI format indication information) and K time-domain resources, the UE can start the main receiver MR only when the verification is successful, and the MR only monitors a specific search space. This can reduce the blind detection range, reduce the probability of false MR wake-up, and shorten the working time of the MR, which helps to reduce UE power consumption.

[0004] Firstly, a communication method is provided. This method can be executed by a user equipment (UE), or by a component configured in the UE (such as a circuit, chip, or chip system), or by a logic module or software capable of implementing all or part of the UE's functions. The UE includes a first receiver and a second receiver. This application does not limit the scope of the method.

[0005] Specifically, the method includes: activating a first receiver to detect K time-domain resources, wherein the K time-domain resources are determined by sampling the listening opportunities in the wake-up window; performing a verification process based on the signals received in the K time-domain resources; activating a second receiver if the verification passes; the second receiver monitoring a first search space; the search space identifier corresponding to the first search space is determined based on a first correspondence and cyclic shift information; the first correspondence includes at least the relationship between the cyclic shift information and the search space identifier; wherein the cyclic shift information is determined based on the first time-domain resources; wherein the UE receives a first wake-up signal in the first time-domain resources, and the first time-domain resources are time-domain resources among the K time-domain resources.

[0006] Based on the above technical solution, after the UE starts the first receiver, it only monitors K time-domain resources (e.g., K micro-time slots), eliminating the need for blind detection of all listening opportunities and thus reducing the blind detection range. Furthermore, by performing a verification process (e.g., double verification) on the signals received in the K time-domain resources, the UE only wakes up the MR when the verification passes, reducing the probability of false MR wake-ups. Finally, after the UE's MR is woken up, it only monitors the search space corresponding to the search space identifier, thereby shortening the MR's operating time and helping to reduce UE power consumption.

[0007] Optionally, the first receiver is a low-power wake-up receiver (LP-WUR); the second receiver is a master receiver (MR).

[0008] In some embodiments, scheduling flexibility is ensured by assigning K time-domain resources to each UE within each wake-up window. This allows the UE to enable LP-WUR detection only during these K time-domain resources, while remaining in deep sleep for the rest of the time (e.g., before the K time-domain resources), thereby reducing average power consumption.

[0009] In one possible implementation, the UE performs a verification process based on signals received in K time-domain resources, including: performing a verification process based on at least one of a first parameter, a second parameter, and a third parameter, wherein the first parameter, the second parameter, and the third parameter are determined based on the power delay spectrum of the full window, and the power delay spectrum of the full window is determined based on cross-correlation operations performed on signals received in K time-domain resources.

[0010] Optionally, the method further includes: the UE receiving a configuration message, the configuration message including one or more of the following: a first correspondence; configuration information related to K time-domain resources; first window configuration information; the first correspondence includes: cyclic shift information; and DCI format indication information associated with the cyclic shift information, and / or, search space identifier associated with the cyclic shift information; the first window configuration information is used to configure a silent window.

[0011] Therefore, based on the configuration information related to the K time-domain resources in the configuration message sent by the network device, the UE can determine the K time-domain resources, thereby enabling the first receiver to monitor the K time-domain resources; based on the first correspondence in the configuration message sent by the network device, the UE can determine the search space identifier and DCI format indication information corresponding to the cyclic shift information, thereby enabling the MR to monitor only the search space corresponding to the search space identifier, reducing the MR's working time; based on the first window configuration information in the configuration message sent by the network device, the silent window can be determined, thereby performing the verification process based on the silent window, and reducing the false wake-up rate of the MR by performing the verification process.

[0012] It should be noted that the configuration content included in the configuration message may be part or all of the configuration content configured by the network device for the UE, or it may be predefined by the protocol; there is no specific limitation on this. For example, the first correspondence relationship may be predefined by the protocol. Another example is the configuration information related to the K time-domain resources, which may be predefined by the protocol. Yet another example is the first window configuration information, which may be configured by the network device.

[0013] In one possible implementation, the configuration information related to the K time-domain resources includes one or more of the following: an indication of whether the K time-domain resources are enabled; the value of K; the generation rules for the K time-domain resources; the sorting rule identifier for the time-domain resources; the parameters of the hash function; and the time anchor point parameters. The generation rules for the K time-domain resources may also include removal rules to address the problem of duplicate indexes, thereby ensuring that K distinct indexes are obtained.

[0014] Optionally, the first window configuration information includes the window length and / or the window's starting position.

[0015] In one possible implementation, the method further includes: the UE determining a first parameter, a second parameter, and a third parameter based on the full-window power delay spectrum (PDP); the first parameter refers to the energy peak detected at the cyclic shift value where the user identifier field is the first value; the second parameter is the maximum correlation peak detected at the cyclic shift value where the user identifier field is the second value; and the third parameter refers to the average cross-correlation output value measured within the silent window.

[0016] To reduce false wake-ups of MR, embodiments of this application provide the following dual verification process.

[0017] In one possible implementation, the UE performs a verification process based on at least one of the first parameter, the second parameter, and the third parameter, including: Determine whether the absolute value of the difference between the first parameter and the third parameter does not exceed the first threshold value; If the absolute value does not exceed the first threshold, the verification is deemed to have failed. If the absolute value exceeds the first threshold, it is determined whether the isolation parameter exceeds the second threshold. The isolation parameter is determined based on the first, second, and third parameters. If the isolation parameter exceeds the second threshold, the verification is deemed successful. If the isolation parameter does not exceed the second threshold, the verification is deemed to have failed.

[0018] Therefore, this application embodiment introduces "dual reset confidence verification" on the UE side, utilizing the noise baseline obtained from the silent window and the co-channel interference reference to construct isolation parameters and increase validity prediction. This allows for earlier and lower power filtering of false alarms before waking up the MR, thereby reducing power consumption caused by invalid MR wake-ups. Further optionally, if the verification passes, the method further includes: Start the timer; Based on the DCI format indication information, it is determined whether the DCI was successfully decoded during the timer operation. The DCI format indication information is determined based on the cyclic shift index information and the first correspondence. If decoding is successful, proceed with downlink transmission; In the event of decoding failure, a feedback message is sent to the network device to notify the network device that the wake-up trigger was invalid.

[0019] In one possible implementation, the method further includes: if the UE fails the verification, it sends feedback information to the network device, the feedback information being used to notify the network device that the wake-up trigger is invalid.

[0020] Therefore, the UE may fail the verification process, or even if the verification passes, it may fail to decode the DCI. In such cases, the UE can determine that the wake-up signal is a false alarm or an untrusted wake-up event. The UE sends feedback information to the network device to terminate the subsequent transmission of this session, thereby preventing the network from continuing to occupy resources.

[0021] In one possible implementation, the UE can send feedback information based on configuration information associated with the feedback information.

[0022] Optionally, the configuration message may also include: configuration information related to the feedback information; the configuration information related to the feedback information includes one or more of the following: uplink resources used to carry the feedback information (i.e., the uplink resources used by the UE when sending feedback information to the network device), repetition count (indicating the number of times the UE sends feedback information), offset information (indicating the offset relative to the current LP-WUS monitoring opportunity when sending feedback information), and stop range information (indicating the spectrum resource range corresponding to restricting the behavior of the network device).

[0023] By introducing a repetition count, the UE sends feedback information to the network device according to the repetition count, which can improve the reliability of feedback information transmission.

[0024] Optionally, when sending feedback information, the method further includes: turning off the first receiver and the second receiver; or, turning off the second receiver while the first receiver is on. Therefore, by turning off the second receiver, the UE can further save power consumption.

[0025] For example, the first receiver is an LP-WUR; the second receiver is an MR.

[0026] Optionally, the K time-domain resources are determined through hash multisampling. The network device and the UE can determine the K time-domain resources in the same way, thereby ensuring that the network device and the UE have a consistent understanding of the K time-domain resources.

[0027] In one possible implementation, the UE performs a verification process based on signals received in K time-domain resources, including: Based on the configuration information in the first window, a verification process is performed in the silent window according to the signals received in the K time-domain resources.

[0028] Secondly, a communication method is provided, which can be executed by a network device, or by a component (such as a circuit, chip, or chip system) configured in the network device, or by a logic module or software capable of implementing all or part of the functions of the network device. This application does not limit this method.

[0029] Specifically, the method includes: the network device determining a first time domain resource from K time domain resources, wherein the K time domain resources are determined by sampling listening opportunities in the wake-up window; sending a first wake-up signal from the first time domain resource, wherein the first time domain resource is used to determine cyclic shift information, wherein the cyclic shift information corresponds to search space identifier and / or DCI format indication information.

[0030] Based on the above technical solution, the network device sends a first wake-up signal on the first time domain resource, enabling the UE to monitor only K time domain resources after activating the first receiver, eliminating the need for blind detection of all listening opportunities and thus reducing the blind detection range. Furthermore, the first wake-up signal implicitly carries cyclic shift information, which includes an associated search space identifier and / or DCI format indication information. This ensures that after the UE's MR is woken up, it only monitors the search space corresponding to the search space identifier, thereby shortening the MR's operating time and helping to reduce UE power consumption.

[0031] In some embodiments, scheduling flexibility is ensured by assigning K time-domain resources to each UE within each wake-up window. This allows the network device to select one or more of the UE's K time-domain resources to send a wake-up signal (e.g., LP-WUS), thereby improving scheduling flexibility and conflict avoidance capabilities.

[0032] In one possible implementation, the method further includes: a network device sending a configuration message, the configuration message including one or more of the following: a first correspondence; configuration information related to K time-domain resources; first window configuration information; the first correspondence includes: cyclic shift information; and DCI format indication information associated with the cyclic shift information, and / or, a search space identifier associated with the cyclic shift information; the first window configuration information is used to configure a silent window.

[0033] Therefore, the network device sends a configuration message to the UE so that the UE can determine the K time-domain resources based on the configuration information related to the K time-domain resources in the configuration message, thereby enabling the first receiver to monitor the K time-domain resources; or, so that the UE can determine the search space identifier and DCI format indication information corresponding to the cyclic shift information based on the first correspondence in the configuration message, thereby enabling the MR to monitor only the search space corresponding to the search space identifier, reducing the UE's MR working time; or, so that the UE can determine the silent window based on the first window configuration information in the configuration message, thereby performing a verification process based on the silent window, and reducing the false wake-up rate of the MR by performing the verification process.

[0034] Optionally, the configuration information related to the K time-domain resources includes one or more of the following: indication information on whether to enable the K time-domain resources; the value of K; the generation rules of the K time-domain resources; the sorting rule identifier of the time-domain resources; the parameters of the hash function; and the time anchor parameters.

[0035] Optionally, the first window configuration information includes the window length and / or the window's starting position.

[0036] In one possible implementation, the method further includes: the network device receiving feedback information, which is used to notify the network device that the current wake-up trigger is invalid.

[0037] Optionally, the configuration message further includes: configuration information related to the feedback information; the configuration information related to the feedback information includes one or more of the following: uplink resources for carrying the feedback information, repetition count, offset information, and stop range information.

[0038] Optionally, the method further includes: the network device performing session termination processing based on feedback information, wherein the session termination processing includes one or more of the following: canceling duplicate LP-WUS transmissions that have not yet occurred; canceling downlink control message transmissions; and releasing downlink resources.

[0039] Therefore, upon receiving the feedback information, the network device associates it with the most recent LP-WUS triggered session for the UE (e.g., based on the UE's corresponding uplink resource identifier and arrival time window), and immediately terminates the subsequent actions of the session according to the stop range. After performing the session termination process, the network device will no longer send subsequent content to the UE for this trigger, thereby avoiding resource waste caused by "the network device continuing to send but the UE not accepting".

[0040] Thirdly, a communication apparatus is provided, comprising modules or units for performing the method in any possible implementation of the first aspect described above.

[0041] In one design, the communication device may include modules that perform the methods / operations / steps / actions described in the foregoing aspects. These modules may be hardware circuits, software, or a combination of hardware circuits and software.

[0042] In one design, the communication device is a communication chip, which may include an output circuit or interface for transmitting information or data, and an input circuit or interface for receiving information or data.

[0043] In another design, the communication device is a communication equipment, which may include a transmitter for sending information or data and a receiver for receiving information or data.

[0044] In another design, the communication device is used to perform the method in any possible implementation of the first aspect described above. The communication device may be configured in the UE, or the communication device itself may be the UE.

[0045] Fourthly, a communication apparatus is provided, comprising modules or units for performing the method in any possible implementation of the second aspect described above.

[0046] In one design, the communication device may include modules that perform the methods / operations / steps / actions described in the foregoing aspects. These modules may be hardware circuits, software, or a combination of hardware circuits and software.

[0047] In one design, the communication device is a communication chip, which may include an output circuit or interface for transmitting information or data, and an input circuit or interface for receiving information or data.

[0048] In another design, the communication device is a communication equipment, which may include a transmitter for sending information or data and a receiver for receiving information or data.

[0049] In another design, the communication device is used to perform the method in any possible implementation of the second aspect described above. The communication device may be configured in the network device described above, or the communication device itself may be a network device.

[0050] Alternatively, the network device may be a satellite, or an access network device (e.g., a gNB or a NB), or a network element in the core network.

[0051] Fifthly, a communication device is provided, including a processor. The processor is coupled to a memory and can be used to execute instructions or data in the memory to implement the method in any possible implementation of the first aspect described above. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

[0052] In one implementation, the communication interface may be a transceiver, or an input / output interface.

[0053] In another implementation, the communication device is a chip configured in the UE. When the communication device is a chip configured in the UE, the communication interface can be an input / output interface.

[0054] In a sixth aspect, a communication device is provided, including a processor. The processor is coupled to a memory and can be used to execute instructions or data in the memory to implement the method in any possible implementation of the second aspect described above. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

[0055] In one implementation, the communication interface may be a transceiver, or an input / output interface.

[0056] In another implementation, the communication device is a chip configured in a network device. When the communication device is a chip configured in a network device, the communication interface can be an input / output interface.

[0057] In a seventh aspect, a processor is provided, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive signals through the input circuit and transmit signals through the output circuit, causing the processor to execute a method in any possible implementation of any aspect.

[0058] In specific implementation, the processor can be one or more chips, the input circuit can be input pins, the output circuit can be output pins, and the processing circuit can be transistors, gate circuits, flip-flops, and various logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to and transmitted by a transmitter. Furthermore, the input circuit and the output circuit can be the same circuit, which is used as both the input circuit and the output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.

[0059] Eighthly, a communication device is provided, including a processor and a memory. The processor is used to read instructions stored in the memory, receive signals via a receiver, and transmit signals via a transmitter to execute the method in any possible implementation of any of the preceding aspects.

[0060] Optionally, the processor may be one or more, and the memory may be one or more.

[0061] Optionally, the memory may be integrated with the processor, or the memory may be separated from the processor.

[0062] In the specific implementation process, the memory can be a non-transitory memory, such as read-only memory (ROM), which can be integrated with the processor on the same chip or set on different chips. The embodiments of this application do not limit the type of memory or the way the memory and processor are set.

[0063] It should be understood that the relevant data interaction process, such as sending indication information, can be the process of the processor outputting indication information, and receiving capability information can be the process of the processor receiving input capability information. Specifically, the data output by the processor can be sent to the transmitter, and the input data received by the processor can come from the receiver. Here, the transmitter and receiver can be collectively referred to as a transceiver.

[0064] The processing device mentioned in the eighth aspect above can be one or more chips. The processor in the processing device can be implemented in hardware or software. When implemented in hardware, the processor can be a logic circuit, integrated circuit, etc.; when implemented in software, the processor can be a general-purpose processor that reads software code stored in memory. The memory can be integrated into the processor or located outside the processor and exist independently.

[0065] Ninthly, a computer program product is provided, the computer program product comprising: a computer program (also referred to as code or instructions) that, when the computer program is run, causes a computer to perform a method in any possible implementation of any of the above aspects.

[0066] In a tenth aspect, a computer-readable storage medium is provided that stores a computer program (also referred to as code or instructions) that, when run on a computer, causes the computer to perform the methods in any possible implementation of any of the preceding aspects.

[0067] Eleventhly, embodiments of this application provide a chip system including one or more processors for calling and executing instructions stored in memory, causing the methods in any of the above aspects or possible implementations to be executed. The chip system may be composed of chips or may include chips and other discrete devices.

[0068] The chip system may include output circuits or interfaces for transmitting information or data, and input circuits or interfaces for receiving information or data.

[0069] In a twelfth aspect, a communication system is provided, including the aforementioned UE and network device. The UE is used to execute any possible implementation of the first aspect. The network device is used to execute any possible implementation of the second aspect.

[0070] Optionally, the communication system may also include other devices that communicate with the UE and / or network devices. Attached Figure Description

[0071] Figure 1A A schematic diagram of a communication system provided in an embodiment of this application; Figure 1B A schematic diagram of another communication system provided in the embodiments of this application; Figure 2A A schematic diagram of a UE receiving two-level DCI; Figure 2B This is an exemplary block diagram of a UE in an embodiment of this application; Figure 3 Example diagram of the communication method provided in the embodiments of this application; Figure 4 This is a method example diagram illustrating the verification process in an embodiment of this application; Figure 5 This is an example diagram showing the verification process passing according to an embodiment of this application; Figure 6 An example diagram showing a failed verification of an embodiment of this application; Figure 7 This is a flowchart illustrating a method according to an embodiment of this application; Figure 8 This is a schematic block diagram of the communication device provided in the embodiments of this application; Figure 9 This is another schematic block diagram of the communication device provided in the embodiments of this application. Detailed Implementation

[0072] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0073] In this application embodiment, "multiple" can be understood as "at least two"; "multiple items" can be understood as "at least two items".

[0074] In the description of this application, unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can represent A or B. "And / or" in this application merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple. Additionally, to facilitate a clear description of the technical solutions of the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or the order of execution, and that the words "first" and "second" do not necessarily imply that they are different.

[0075] This application can be applied to communication systems. Mobile communication systems include, but are not limited to, the following systems: Long Term Evolution (LTE) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) systems, 5th Generation (5G) mobile communication systems or new radio access technology (NR), 6th Generation (6G) mobile communication systems and future mobile communication systems, vehicle-to-other devices (V2X), where V2X can include vehicle-to-network (V2N), vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), etc., Long Term Evolution-Vehicle (LTE-V) technology for vehicle-to-everything (V2V), vehicle-to-everything (V2X), machine-type communication (MTC), Internet of Things (IoT), and Long Term Evolution-Vehicle (LTE-V) technology for machine-to-machine communication. Evolution-machine (LTE-M), machine-to-machine (M2M), etc. Among them, 5G mobile communication systems can include non-standalone (NSA) and / or standalone (SA) networks.

[0076] This application can also be applied to systems that integrate mobile communication systems and satellite communication systems. Satellite communication systems include, but are not limited to, non-terrestrial network (NTN) systems such as high altitude platform station (HAPS) communication, for example, the Global Navigation Satellite System (GNSS). Optionally, satellite communication systems include geostationary orbit (GEO) satellites and non-geostationary earth orbit (NGEO) satellites; or various terrestrial network (TN) systems.

[0077] Figure 1A This is a schematic diagram of a communication system 100 used in an embodiment of this application. The communication system 100 may include network devices, such as... Figure 1A The network device 110 is shown. The communication system 100 may also include terminal devices, such as... Figure 1A The terminal device 120 is shown. The network device 110 and the terminal device 120 can communicate via a wireless link.

[0078] Figure 1A An exemplary network device 110 and a terminal device 120 are shown. Optionally, the communication system 100 may also include multiple network devices and / or multiple terminal devices.

[0079] Figure 1B A schematic diagram of another communication system according to an embodiment of this application is shown. For example... Figure 1B As shown, the communication system includes a UE and two network devices. Figure 1B The diagram shows the NR LP-WUS coverage area and the 6G OFDM WUS coverage area for the network devices, respectively. For example, Figure 1B The UE in this paper extends the use of downlink wake-up signal (DL WUS) based on 6G OFDM sequence, that is, the UE can receive wake-up signal under 6G.

[0080] The network equipment in this application can be network-side equipment such as access network equipment and core network equipment. Access network equipment is sometimes also called access node. Access network equipment has wireless transceiver capabilities and is used to communicate with terminals. Access network equipment includes, but is not limited to, base stations, evolved NodeBs (eNodeBs), transmission reception points (TRPs) in the above-mentioned communication systems, next-generation NodeBs (gNBs) in 5G mobile communication systems, advanced / AI NodeBs (aNBs) in 6G mobile communication systems, access network equipment or modules of access network equipment in open RAN (ORAN) systems, satellites in NTN communication systems, base stations in future mobile communication systems, or access nodes in WiFi systems. Access network equipment can also be modules or units that can implement some of the functions of a base station. Access network equipment can be macro base stations, micro base stations or indoor stations, relay nodes or donor nodes, or wireless controllers in cloud radio access network (CRAN) scenarios. Optionally, access network equipment can also be servers, wearable devices, or vehicle-mounted equipment, etc. For example, the access network equipment in vehicle-to-everything (V2X) technology can be a roadside unit (RSU). Multiple access network devices in a communication system can be base stations of the same type or different types. Base stations can communicate with terminals directly or via relay stations. Terminals can communicate with multiple base stations using different access technologies. The embodiments of this application do not limit the specific technology or equipment form used in the access network equipment. In this application, access network equipment or core network equipment can be simply referred to as network equipment.

[0081] In this application, the means for implementing the functions of a network device can be a network device itself, or a means capable of supporting the network device in implementing those functions, such as a processor, circuit, chip, or chip system. This means can be installed in or connected to the network device. In the technical solutions provided in this application, the example of a network device being used to implement the functions of a network device is used to describe the technical solutions provided in this application.

[0082] The terminal device in this application can be a wireless terminal device capable of receiving network device scheduling and instruction information. The wireless terminal device can be a device providing voice and / or data connectivity to a user, a handheld device with wireless connectivity, or other processing devices connected to a wireless modem. For example, the terminal device can communicate with one or more core networks or the Internet via a radio access network (RAN). The terminal device can also be referred to as a terminal, user equipment (UE), mobile station, mobile terminal, etc. Terminal devices can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), ultra-reliable low-latency communication (URLLC), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, or satellite communication, etc. The terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, wearable device, vehicle, aircraft (such as drone, helicopter, airplane), hot air balloon, ship, robot, robotic arm, or smart home device, etc. The embodiments of this application do not limit the form of the terminal device.

[0083] In this application, the apparatus for implementing the functions of a terminal device can be the terminal device itself, or any apparatus capable of supporting the terminal device in implementing those functions, such as a processor, circuit, chip, or chip system. This apparatus can be installed in or connected to the terminal device. In the technical solutions provided in this application, the example of a terminal device being used to implement the functions of a terminal device is used to describe the technical solutions provided in this application.

[0084] Access network equipment and / or terminal equipment can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; on water; or in the air on aircraft, balloons, and satellites. This application does not limit the application scenarios of the access network equipment and terminal equipment. They can be deployed in the same or different scenarios; for example, both can be deployed on land simultaneously; or the access network equipment can be deployed on land while the terminal equipment is deployed on water, etc., and so on.

[0085] In practical applications, multiple network devices can collaborate to assist terminals in achieving wireless access, with different network devices each implementing a portion of the base station's functions. For example, network devices can be central units (CUs), distributed units (DUs), CUs (control planes, CPs), CUs (user planes, UPs), or radio units (RUs), etc. CUs and DUs can be set up separately or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio frequency equipment or radio frequency units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs).

[0086] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (Open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules. CU (or CU-CP and CU-UP), DU, and RU can implement different protocol layer functions.

[0087] To facilitate understanding of the embodiments of this application, the terminology used in this application will be briefly explained first. For example, the explanation of some terms can also be found in the interpretation of the 3rd Generation Partnership Project (3GPP) standard protocol.

[0088] 1. Physical downlink control channel (PDCCH) One of the functions of the PDCCH is to carry scheduling information sent from network devices to the UE. If the UE detects scheduling information in the DCI on the PDCCH, for downlink scheduling information, the UE can receive data through the physical downlink shared channel (PDSCH); for uplink scheduling information, the UE can send data through the physical uplink shared channel (PUSCH). The PDCCH can also be used to carry control information such as uplink power control commands. PDCCHs carrying different control information can have different DCI formats, and different DCI formats can be scrambled using different radio network temporary identifiers (RNTIs).

[0089] For example, in the 5G NR standard, the resource configuration of PDCCH is determined by two parameters: one is the control resource set (CORESET), which encapsulates the frequency domain resource information occupied by the PDCCH and the number of orthogonal frequency division multiplexing (OFDM) symbols occupied in the time domain; the other is the search space set (SS set), which mainly contains the starting OFDM symbols occupied by the PDCCH transmission in the time domain, the aggregation level (AL) of the candidate PDCCHs in the SS set, the number of PDCCH candidates at each aggregation level, the PDCCH listening period of the PDCCH candidates, and the information of the CORESET associated with the SS set. In the NR standard, each SS set is associated with a CORESET, and one CORESET can correspond to multiple different SS sets.

[0090] The time-frequency resources occupied by an SS set can be determined by using the SS set and a CORESET associated with the SS set. The SS set includes at least one candidate PDCCH, that is, it includes at least one time-frequency resource for transmitting PDCCH; the candidate PDCCH in the SS set can be used for PDCCH transmission, that is, it can be used to send information carried by the PDCCH (such as DCI).

[0091] Furthermore, in NR systems, UEs primarily rely on the DCI carried by the PDCCH to obtain downlink scheduling / control information. Because the network transmits PDCCHs under different time and frequency resources, different aggregation levels (ALs), different candidate sets, different SearchSpace / CORESET configurations, and different DCI format assumptions, the UE needs to blindly detect / decode multiple candidate PDCCHs in pre-configured monitoring occasions (or monitoring times) to determine if a valid DCI belonging to the UE exists. This blind detection process typically involves: traversing multiple SearchSpaces, attempting multiple aggregation levels, decoding and CRC checks of multiple candidate positions, and switching between multiple DCI format assumptions, etc., which are "high-frequency, high-computing-power / high-power-consumption" receiver-side operations.

[0092] 2. Search space (SS) The network device configures a search space for the UE; the UE searches for control signals / DCIs from the network device within the search space. These control signals / DCIs (described below as control signals) are used to schedule resources (e.g., time-domain resources and / or frequency-domain resources) for the UE to transmit data. In other words, the search space is the search space of the PDCCH.

[0093] The search space can also be understood as a set of search spaces. In NR, the physical layer is described as a set of search spaces (SSset), while higher-layer parameters are search spaces (e.g., RRC parameters are searchSpace). SS sets in NR are mainly divided into two categories: one is the common SS set, which includes type 0, type 0A, type 1, type 2, or type 3 CSS sets, etc., mainly used for access, cell handover, or for receiving system information (SI), paging, random access response (RAR), and other related control information; the other is the UE-specific search space configuration, i.e., the UE-specific search space set (USSset).

[0094] For example, SearchSpace configures the PDCCH search space in RRC signaling through multiple parameters (including PDCCH candidate aggregation level, number, starting symbol position of PDCCH listening, PDCCH listening period, and PDCCH listening offset, etc.).

[0095] In one possible implementation, a SearchSpace corresponds to a set of monitoring occasions, and each monitoring occasion is a specific time-frequency resource block (e.g., corresponding to several consecutive symbols). A SearchSpace can be identified by a SearchSpace ID.

[0096] 3. Two-stage downlink control information (Two-stage DCI) Two-stage DCI (or two-phase DCI) consists of stage 1 DCI and stage 2 DCI. Stage 1 control information carries basic uplink scheduling information (such as bandwidth part (BWP), RNTI, etc.); stage 1 DCI can be transmitted in the PDCCH and obtained by the UE through blind detection. Stage 2 DCI is transmitted in the PDCCH or Physical Downlink Shared Channel (PDSCH) and carries fine-grained scheduling information; the resource location of stage 2 DCI can be explicitly indicated by stage 1 DCI, without requiring blind detection by the UE. Using two-stage DCI can effectively reduce blind detection.

[0097] Figure 2A An example diagram of a two-level DCI is shown. Taking the UE receiving a two-level DCI as an example, the UE includes a low-power-wake-up radio (LR / LP-WUR) and a main receiver (MR). When the UE's LR / LP-WUR receives the downlink wake-up signal DL WUS during a downlink wake-up signal monitoring occasion (DL WUSMO), it triggers the MR to start or activate. After activating the MR, the UE blindly checks the entire search space. That is, during the MR active period, the MR first receives the first-level DCI, thereby resolving information such as the DCI format, aggregation level, or search space. The first-level DCI provides blind detection decoding information for the second-level DCI, indicating the resource location of the second-level DCI. The second-level DCI carries scheduling information.

[0098] 4. Low-power-wake-up radio (LR / LP-WUR) and main receiver (MR) To reduce PDCCH blind detection power consumption, a low-power wake-up receiver (LP-WUR) and a low-power wake-up signal (LP-WUS) are introduced as pre-triggered mechanisms. This means the UE's MR is only woken up when there is a potential downlink control / data requirement. Currently, a downlink wake-up signal based on OFDM sequences (DL WUS) and its supporting mechanisms are under discussion. In this scenario, the UE uses a resident LP-WUR to listen for specific waveforms, and only activates the high-power MR to decode the PDCCH when a valid wake-up signal is detected.

[0099] Figure 2B An example diagram of a UE according to an embodiment of this application is shown. Figure 2B As shown, the UE includes a first receiver and a second receiver. For example, the first receiver is a low-power receiver (LR / LP-WUR) or a low-power wake-up receiver; the second receiver is a main radio (MR) or a main receiver (MR).

[0100] It should be understood that the aforementioned LP-WUR or MR can also be replaced by other modules with equivalent functions, and this application embodiment does not specifically limit this. However, currently, when the UE wakes up the main receiver MR, it needs to perform full-space blind detection under assumptions such as multiple search spaces, candidate locations, and DCI formats. This "wake-up first, then blind detection" mode results in a long MR working time and high UE power consumption.

[0101] In view of this, to address the issue of the long working time of MR, this application proposes a communication method that enables the UE to wake up the MR only when the verification is successful, and after waking up the MR, it only monitors the search space corresponding to the UE and decodes it according to the corresponding DCI format, thereby reducing the number of decoding attempts and the working time of MR, which helps to reduce the power consumption of the UE and the complexity of blind detection.

[0102] The following detailed explanation of the solution provided in this application, in conjunction with the corresponding flowcharts, illustrates the method in detail. It is understood that the illustrative flowcharts provided in this application primarily use different devices (e.g., UE, network devices) as examples of the execution entities for this interactive illustration, but this application does not limit the execution entities of the interactive illustrations. For example, the devices (e.g., UE, network devices) in the illustrative flowcharts can also be chips, chip systems, or processors that support the implementation of this method on the device, or logical modules or software capable of implementing all or part of the device's functions.

[0103] As a general statement, the message or signaling interactions involved in the interaction process of this application embodiment can be standard messages or signaling or newly introduced messages or signaling. This application embodiment does not make specific limitations on this.

[0104] Figure 3 This is an example flowchart illustrating a communication method according to an embodiment of this application. It can be understood that... Figure 3 The UE in the middle can be Figure 1A Terminal device 120 or Figure 1B UE in this context can also refer to Figure 1A The device (e.g., processor, chip, or chip system) in the terminal device 120 or Figure 1B The UE's devices (e.g., processors, chips, or chip systems). Network devices can be... Figure 1A The network device 110 mentioned here can also refer to the device (such as a processor, chip, or chip system) within the network device 110; or it can also be... Figure 1B Any network device in the network. For example... Figure 3 As shown, the method includes at least the following steps: Optionally, in step 300, the network device sends a configuration message to the UE. Correspondingly, the UE receives the configuration message.

[0105] The configuration message includes one or more of the following configurations: (1) a first correspondence; (2) configuration information related to K time-domain resources; and (3) first window configuration information.

[0106] The contents included in the configuration message are described below. It should be noted that (1), (2) and (3) are all configuration contents or fields newly introduced for implementing the embodiments of this application. They will be described separately below.

[0107] (1) First correspondence The aforementioned first correspondence includes cyclic shift (CS) information; and DCI format indicator information (such as dci-FormatIndicator) associated with the cyclic shift information; and / or, search space identifier (such as searchSpaceId) associated with the cyclic shift information. That is, each cyclic shift information (e.g., CS index) has a corresponding DCI format indicator and a corresponding search space identifier. For example, the cyclic shift information could be a cyclic shift index of a ZC sequence.

[0108] Optionally, the search space identifier is represented by the searchSpaceId field. The searchSpaceId field can take the value of an integer. For example, the searchSpaceId field can take the value in the range [0, maxNrofSearchSpaces-1].

[0109] Optionally, DCI format indication information is represented by the dci-FormatIndicator field, which indicates the DCI format. The value of the dci-FormatIndicator field can be an enumeration. For example, the value of the dci-FormatIndicator field can be f0-0, f1-0, etc.

[0110] This application does not specifically limit the form in which the first correspondence is represented. The first correspondence can be a mapping table or other forms used to represent correspondence or mapping relationships. For example, an example of the first correspondence is described in conjunction with Table 1.

[0111] Table 1

[0112] It should be understood that the contents shown in Table 1 above are merely exemplary descriptions, and the embodiments of this application are not limited thereto. The cyclic shift CS index in Table 1 is a parameter of the ZC sequence. Different cyclic shift indices correspond to different DCI format indication information and / or search space identifiers.

[0113] It should also be understood that Table 1 is only a partial example showing the first correspondence, and in reality there may be more or fewer entries. For example, Table 1 may also include more DCI format indication information and / or search space identifiers associated with the circular shift index.

[0114] Optionally, the user identifier is represented by the `entryRole` field. The `entryRole` field is used to distinguish between target users and non-target users. Non-target users refer to users interfering on the same frequency, or other users. The `entryRole` field is used to wake up the target user. The value of the `entryRole` field is an enumeration value. For example, when the value of `entryRole` is 0, it represents waking up the target user (target); when the value of `entryRole` is 1, it represents a user interfering on the same frequency (interferenceRef).

[0115] For example, the first correspondence is a sequence group mapping table, also known as a cyclic shift implicit mapping table, which is to establish a static table between cyclic shift information and (DCI format indication information, search space identifier); or to establish a static table between cyclic shift information and (DCI format indication information, search space identifier, user identifier).

[0116] For example, the sequenceGroupMapping field is extended in the wakeUpSignalConfig. The sequenceGroupMapping includes one or more entries, each containing a cyclic shift index, DCI format indication information, a search space identifier, and a user identifier (which may be represented as an entryRole). wakeUpSignalConfig can be located in an RRC configuration message.

[0117] For example, a pre-configured RRC mapping table, sequenceGroupMapping, is established by comparing the cyclic shift index of the ZC sequence with (dci-FormatIndicator, searchSpaceId). The network device sends LP-WUS by selecting the cyclic shift index. After the UE obtains the cyclic shift index by enabling LP-WUS related detection, it uses the cyclic shift index to look up parameters in reverse, which can directly converge to the target SearchSpace and DCI format, bypassing full-space blind detection and reducing the number of blind detections.

[0118] By configuring the aforementioned first correspondence to the UE in the configuration message, the network device can indicate the "search space to be monitored" and the "DCI format to be used" to the UE in a low-overhead manner. This implicitly indicates the "search space to be monitored" and the "DCI format to be used" to the UE. Compared to methods that add a large number of control bits or assign a unique ID to each UE and repeatedly send it, the overhead introduced in this embodiment is lower, helping to reduce scheduling overhead. Furthermore, this embodiment achieves implicit parameter retrieval through a static mapping between cyclic shift information (such as cyclic shift index) and (dci-FormatIndicator, SearchSpaceId), avoiding the occupation of PDCCH bits and Control Channel Element (CCE) resources for the "first-level DCI indication," thus helping to reduce the blind detection complexity caused by multi-format assumptions or multi-set traversal.

[0119] (2) Configuration information related to K time-domain resources The configuration information related to the K time-domain resources mentioned above is used to configure or define a set of candidate time-domain resources. The K time-domain resources can be determined based on the UE identifier. K can be an integer greater than or equal to 1. By defining K time-domain resources, this application embodiment enables the network device to flexibly select the transmission timing among the K time-domain resources, and enables the UE to enable LP-WUR detection only on a small number of candidate time-domain resources (i.e., it does not need to detect in all available listening opportunities).

[0120] This application does not specifically limit the message type or fields within the message containing the configuration information related to the K time-domain resources. For example, a network device can add or supplement the configuration information related to the K time-domain resources in the WakeUpSignalConfig or its substructure within the RRC configuration message.

[0121] Optionally, the configuration information related to the K time-domain resources includes one or more of the following: indication information on whether to enable the K time-domain resources; the value of K; the generation rules of the K time-domain resources; the sorting rule identifier of the time-domain resources; the parameters of the hash function; and the time anchor parameters.

[0122] The indication information regarding whether to enable K time-domain resources can be understood as indicating whether K time-domain resources (such as micro-slot groups) are enabled. For example, the indication information can be named the `miniSlotGroupEnabled` field; different values ​​of the `miniSlotGroupEnabled` field represent whether K time-domain resources are enabled. For instance, a value of 0 for the `miniSlotGroupEnabled` field means that K time-domain resources are not enabled; a value of 1 for the `miniSlotGroupEnabled` field means that K time-domain resources are enabled. Enabling K time-domain resources reduces the scope of UE detection.

[0123] The value of K is used to indicate the specific quantity of K. For example, the field corresponding to the value of K can be named the miniSlotGroupSizeK field.

[0124] The parameters of a hash function include a sampling seed parameter. For example, the parameters of a hash function include hashSeedBase; hashSeedBase represents the seed base value. Optionally, if the parameters of the hash function are not configured or defined, seed_k=k can be used by default.

[0125] The time anchor parameter (e.g., the timeAnchor field) is used to determine the anchor point for the SFN value, or in other words, to determine the starting position of the SFN, thereby ensuring that the network device and the UE have a consistent understanding of the current window, or in other words, to align the time when the network device sends the wake-up signal with the time when the UE starts listening.

[0126] The generation rules for K time-domain resources can define how these K time-domain resources are determined, including but not limited to one or more of the following: generation rules, deduplication rules, and sorting rule identifiers. The generation rules refer to the rules used to determine the K time-domain resources, such as hash multisampling. Deduplication rules are used to resolve duplicate issues during the generation of the K time-domain resources. The sorting rule identifier (e.g., the `miniSlotIndexingRule` field) indicates the sorting rule for the listening opportunity set to the index, such as sorting by increasing or decreasing slot number, and / or sorting by increasing or decreasing symbol number.

[0127] Optionally, the period of the K time-domain resources can be related to the period of the wake-up window or the wake-up signal. That is, there are corresponding K time-domain resources in each wake-up window.

[0128] In some embodiments, scheduling flexibility is ensured by assigning K time-domain resources to each UE within each wake-up window. This allows the UE to enable LP-WUR detection only within these K time-domain resources, remaining in deep sleep for the rest of the time (e.g., before the K time-domain resources), thereby reducing average power consumption. For the network device, it can select one or more time-domain resources from the UE's K time-domain resources to send wake-up signals (e.g., LP-WUS), thus improving scheduling flexibility and conflict avoidance capabilities.

[0129] This application does not specifically limit the representation or temporal granularity of the K time-domain resources. For example, the K time-domain resources may be K candidate micro-time slots, or micro-time slot groups, or candidate micro-time slot sets.

[0130] The following describes how the K time-domain resources are determined. It should be noted that the determination method for these K time-domain resources can be predefined by the protocol or configured by the network device for the UE. The network device and the UE can use the same method to determine the K time-domain resources, thus ensuring that the network device and the UE have a consistent understanding of the K time-domain resources.

[0131] In one possible implementation, the K time-domain resources are determined by sampling from the set of available listening opportunities.

[0132] Optionally, the K time-domain resources are determined from the set of available listening opportunities using hash multisampling. The mathematical principles of hash multisampling can be found in relevant technical documentation and will not be elaborated upon here.

[0133] For example, within a wake-up window, the UE can enumerate all valid listening opportunity sets; the listening opportunity set is represented as The set of listening opportunities satisfies the following formula: ; Each pair This represents a micro-slot listening opportunity; Represents available time slots, Represents available symbols. Optionally, and It can be configured by the network device for the UE.

[0134] The number of micro-time slots that can be accommodated in the monitoring window is expressed as: ; Satisfy the following formula:

[0135] in, This represents the floor function. Indicates the maximum duration of the WUS monitoring window (e.g.) Figure 5 or Figure 6 The time period from t2 to t3 is the WUS monitoring window. This represents the length of the time domain occupied by a single LP-WUS signal, and can also be understood as the length of a single time domain among K time-domain resources (e.g., Figure 5 or Figure 6 The length of a single time-domain resource among the K time-domain resources shown. It can be predefined or configured by the network device.

[0136] for k =0, ...,K-1; Generate candidate indices using a hash function. ; Satisfy the following formula:

[0137] in, This represents the hash function agreed upon by both the network device and the UE, with the aim of ensuring consistency and uniform output between the two parties. Indicates the UE identifier. SFN is used to indicate the system frame number of the current wake-up window; Indicates the first k Seeds for the second sampling, for example ; This indicates the number of candidate microslots within each wake-up window. ; This represents the modulo operation.

[0138] By using the hash multisampling method described above, K micro-time slots, or candidate micro-time slot groups, can be identified.

[0139] Since modular arithmetic may generate duplicate indexes, to ensure that the final result is K distinct indexes (i.e., K indexes are all different), deduplication rules (or deduplication and conflict resolution rules) can be used to resolve the issue of duplicate indexes. Of course, the network device and the UE can use the same deduplication rules to ensure that the K time-domain resources obtained on both sides are consistent.

[0140] In one possible implementation, if the candidate indexes generated by the above formula... , and the selected set A conflict has occurred. A conflict refers to a candidate index... If an index is duplicated or identical to one or more indices in the selected set, linear probing is performed until a new index is obtained. For example, the index can be re-determined using the following formula. :

[0141] Repeat the process until there are no duplicates or conflicts, ultimately yielding a candidate set. .

[0142] Linear probing is a method for resolving sequential collisions. In this embodiment, when the candidate index is obtained through a hash function... When a conflict occurs with an index in the selected set, the following formula can be used: The rules are shifted sequentially until an index that does not conflict with the already selected set is obtained. The formula contains " "Can be understood as "replacement".

[0143] Mapping the index set back to the actual microslot set ;

[0144] in, Each corresponds to a specific (slot, symbol) listening opportunity. It should be understood that the above deduplication rules are merely exemplary descriptions, and the embodiments of this application are not limited thereto. Those skilled in the art can also employ other methods to achieve the purpose of removing duplicate indexes.

[0145] (3) First window configuration information The first window configuration information is used to configure the silent interval or silent window (hereinafter referred to as the silent window). The silent window is used by the UE to estimate neighboring cell interference and / or thermal noise; or, in other words, the UE performs the verification process within the silent window. The purpose of configuring the silent window in this application embodiment is to prevent false alarms from being triggered, or it can be understood as a false alarm handling mechanism to help the UE solve co-channel interference and neighboring cell interference.

[0146] It should be noted that within the silent window, network devices do not carry valid indications (such as wake-up signals used to trigger or wake up target users, or downlink information such as downlink control signaling). Furthermore, the silent window does not occupy additional time-frequency resources; instead, it is a reserved window in the cyclic shift domain. That is, by defining a "clean interval," i.e., the silent window, within the cyclic shift domain, the noise baseline measurement is upgraded from an "absolute energy threshold" to an "environmentally adaptive baseline."

[0147] Optionally, the first window configuration information includes the window length and / or the window's starting position. The window length is represented by L; the window's starting position is represented by... The first window is a continuous silent window interval. .

[0148] For example, the network device sends a silence window configuration, noiseMeasurementConfig, to the UE; noiseMeasurementConfig includes silentWindowStart (i.e., the starting position of the window) and silentWindowLength (i.e., the length of the window). The silentWindowStart and silentWindowLength determine the continuous silent window interval on the cyclic shift index field. .

[0149] In one possible implementation, the first window is determined by using a maximum interval priority strategy to determine the starting position (which could be the starting index) and length of the first window.

[0150] Specifically, among all candidate cyclic shift intervals that satisfy the purity constraint, a window with the most central physical location is selected. Then, the window is maximized relative to the set of occupied CS. The minimum distance is used to suppress the contamination of the target signal or reference sequence with noise statistical accuracy due to correlation leakage as much as possible.

[0151] In one possible implementation, taking the first window as the silent window as an example, the network device determines the silent window in the following way: 1) Determine the complete set of available circular shift indices; for example, the set of circular shift indices supported by the system is:

[0152] 2) Determine the set of CS that has been occupied from the full set of available circular shift indices; For example, the cyclic shift index cyclicShift of all configured entries is obtained from the aforementioned sequenceGroupMapping to form a set of occupied CS:

[0153] in, This represents the set of CS that are already occupied. This represents the CS that has been configured in sequenceGroupMapping. This includes all CS values ​​for `entryRole=target` and `entryRole=interferenceRef`. Taking Table 1 above as an example, the CS of `entryRole=target` is the cyclic shift index 1 corresponding to the value of `entryRole` being 0; the CS of `entryRole=interferenceRef` is the cyclic shift index 2 corresponding to the value of `entryRole` being 1.

[0154] 3) Set the protection interval and identify continuous, clean CS index segments; It should be noted that the purpose of setting a protection interval is to prevent related leakage (including but not limited to leakage caused by one or more of the following: cross-correlation sidelobes, frequency shift and multipath) from contaminating the silent window.

[0155] For example, to avoid affecting noise estimation due to the relevant sidelobes, frequency shifts, or multipath leakage of the target CS, a guard interval is defined. (Or, in other words, protection distance) Protection distance The unit is the CS index. The following describes how the set of disabled indexes is determined:

[0156] in, This indicates that the index set is disabled; the protected interval is extracted from the configured circular index interval, and the union operation is performed to obtain the disabled interval.

[0157] Furthermore, in the complete set of available circular shift indices In the process, the protected interval (i.e., the guard interval) and the occupied cyclic shift index are removed (or eliminated) to identify all consecutive pure CS index segments, represented as follows: ;in, Satisfying the formula: .

[0158] 4) For the Qth consecutive pure segment identified Define its starting index as The ending index is Then the continuous length of the Qth consecutive pure segment is expressed as:

[0159] in, Represents the Qth consecutive pure segment The length. yes Part of it.

[0160] 5) Determine the length L of the silent window; for the Q identified consecutive pure segments, calculate the maximum value of the length of each consecutive pure segment.

[0161] For example, the maximum value of the length of each consecutive pure segment is expressed as . Satisfying the formula: Wherein, the length L of the silent window is the length of the silent interval, and satisfies: This ensures that at least one continuous pure segment is available for placing a silent window.

[0162] 6) Determine the starting index S of the silent window; For any satisfying The candidate segment is selected, and the geometric center position within the candidate segment is chosen as the starting point. Starting point Satisfy the following formula:

[0163] in, This indicates the floor function. and Please refer to the previous text for an explanation.

[0164] Calculate the minimum boundary distance of the centered window relative to the boundary of the clean segment. Minimum boundary distance Satisfy the following formula: ; in, This indicates a minimization operation.

[0165] By traversing all satisfied Candidate segments are selected, and the minimum boundary distance is chosen. The starting point corresponding to the largest candidate segment , which serves as the starting index S of the silent window.

[0166] Optionally, after determining the starting index S and / or window length L of the silent window in the above manner, the network device can send the starting index S and / or window length L to the UE so that the UE can determine the specific location of the silent window.

[0167] To clarify, the configuration content included in the configuration message may be partially or entirely configured by the network device for the UE, or it may be predefined by the protocol; there are no specific limitations on this. For example, the first correspondence may be predefined by the protocol. Another example is the configuration information related to the K time-domain resources, which may be predefined by the protocol. Yet another example is the first window configuration information, which may be configured by the network device.

[0168] It is understandable that the configuration message may also include resource configurations and sequence configurations related to the wake-up signal (such as LP-WUS resource configurations or LP-WUS sequences), etc. For details, please refer to the relevant technical descriptions.

[0169] Optionally, the configuration message may include resource configurations related to the wake-up signal and / or PDCCH configurations matching the UE service and channel environment. Resource configurations related to the wake-up signal may include one or more of the following: starting RB index, available slot, available symbol, and fields required for the initial establishment of the UE and network equipment (e.g., MvalueAndSeqConfig, Codepoint field, Option1-2, etc.).

[0170] For the purposes of this application, it is noted that the form of the configuration message is not specifically limited. For example, the configuration message may be a radio resource control (RRC) signaling.

[0171] For the UE, after obtaining the above configuration content, it can store it locally for later use. Alternatively, some or all of the above configuration content may be predefined, and the UE can also obtain the predefined content.

[0172] Step 301: The network device sends a first wake-up signal from the first time domain resource. The first time domain resource is one of the K time domain resources. For details on how to determine the K time domain resources, please refer to the previous section.

[0173] Optionally, the first time-domain resource is one or more suitable micro-time slots selected by the network device from the K micro-time slots of the UE. For example, a suitable micro-time slot refers to a micro-time slot that satisfies scheduling, conflict, or delay constraints. That is, the network device decides which micro-time slot to select as the suitable micro-time slot from the K micro-time slots. After selecting the first time-domain resource, the network device sends a first wake-up signal according to the time-domain resource configuration; at the same time, it carries the code point value (lpwus-Codepoint) to trigger subsequent actions (such as starting a monitoring timer). The time-domain resource configuration can be pre-configured to the UE by the network device through configuration messages, or it can be predefined by the protocol, without specific limitations.

[0174] The embodiments of this application enable the network device to select a suitable time domain resource from K time domain resources to send the first wake-up signal. In this way, the UE only turns on the first receiver to perform detection in these K time domain resources, which can not only improve scheduling flexibility, but also reduce the average power consumption of the UE for continuous monitoring.

[0175] This application does not specifically limit the granularity of time-domain resources. Optionally, the first time-domain resource can be a frame, subframe, slot, mini-slot (or mini-slot), or symbol, etc. For example, the first time-domain resource can be a mini-slot; the first wake-up signal can be a low-power wake-up signal (LP-WUS); that is, the network device selects a suitable mini-slot from K mini-slots; and sends the LP-WUS in that mini-slot according to the defined resource StartRB, slot, or symbol resource.

[0176] The first wake-up signal can be a downlink wake-up signal (DL WUS) or any other possible signal, and this application embodiment is not limited to any particular signal. DL WUS is a low-power, lightweight downlink signal sent by the network device to the UE at a pre-configured downlink timing (WUSoccasion). For example, the first wake-up signal could be the WUS of 6GOFDM in a 6G communication system. Or, for example, the first wake-up signal could be the LP-WUS in 5G NR.

[0177] Optionally, the K time-domain resources can be K time-domain resources based on UE identifiers (such as C-RNTI or UE ID, which are consistent information that can be obtained by both the UE side and the network device side).

[0178] Furthermore, when the network device sends the first wake-up signal, it searches the first correspondence for the cyclic shift index information corresponding to the indication information to be sent to the target user, based on the user identifier, as well as the DCI format and search space identifier to be used. For example, by querying the first correspondence, it can be seen that the network device sends downlink control information in DCI 1_0 format, and the search space monitored by the UE is SS#100, so cs=0 is selected as the target. That is, the network device uses the indication information intended to be sent to the target user to determine the unique cyclic shift index information. A description of the first correspondence can be found in the preceding text.

[0179] By introducing a first correspondence, in a multi-UE triggering scenario within the same cell, this embodiment enables the network to "direct" the triggering as much as possible without significantly increasing overhead, thereby reducing invalid listening and false triggering by non-target UEs. Simultaneously, to improve scheduling adaptability, it is necessary to avoid the limitation of "UEs being bound to only a single listening slot, resulting in insufficient flexibility." This embodiment selects one or more suitable time-domain resources from K time-domain resources, allowing the network to choose appropriate triggering times within a certain time range (e.g., supporting the ability for one UE to listen to multiple micro-slots), adapting to constraints such as service arrival times and scheduling conflicts.

[0180] Step 302: The UE starts (or enables) the first receiver to perform detection on K time-domain resources.

[0181] For example, the first receiver is an LP-WUR.

[0182] To prevent increased power consumption due to unexpected wake-ups, the UE enables the first receiver to perform detection only on K time-domain resources, without needing to detect all candidate resources (or all available listening opportunities or available listening times). Here, "all available listening opportunities or available listening times" can be understood as the set of listening opportunities configured by the network device (i.e., the set of listening opportunities described earlier). For example, This represents a micro-slot listening opportunity; Represents available time slots, Represents available symbols; and It can be configured by the network device for the UE.

[0183] In one possible implementation, the UE performs a cyclic cross-correlation operation between the standard ZC sequence generated by the configured zc-RootIndex and the signals received in K time-domain resources to obtain the output result. Cross-correlation is a mathematical operation used to measure the similarity between two signals or functions, and is widely used in signal processing, image recognition, deep learning, and other fields. For details on the specific calculation method of cross-correlation, please refer to the relevant technical documentation; it will not be elaborated here. The output result includes the power delay spectrum of the entire window. The entire window refers to the wake-up window, for example... Figure 5 or Figure 6 The output shows the time interval from t2 to t3. The output includes values ​​from 0 to... _ 1. The relevant peak energy at all cyclic shifts. In other words, the output includes all potential signal peaks and noise floor.

[0184] Based on this output, the UE performs a verification process to determine whether there is a wake-up signal calling itself, and then decides whether to start the second receiver.

[0185] Step 303: The UE performs a verification process based on the signals received in the K time-domain resources.

[0186] In other words, the UE can use the signals received in K time-domain resources to perform a pre-verification process to decide whether to activate the second receiver.

[0187] Optionally, step 303 includes: the UE performing a verification process based on at least one of the first parameter, the second parameter, and the third parameter, wherein the first parameter, the second parameter, and the third parameter are determined based on the power delay spectrum of the full window, the power delay spectrum of the full window is determined based on cross-correlation operation performed on signals received in K time-domain resources (with ZC sequence), and the received signals include at least the first wake-up signal.

[0188] In one possible implementation, before performing the verification process, the UE determines the first parameter, the second parameter, and the third parameter based on the full-window power delay profile (PDP) output obtained from the aforementioned cross-correlation operation.

[0189] In other words, the UE can extract three physical quantities, or three parameters, through the PDP: the first parameter, the second parameter, and the third parameter. For details on the extraction process, please refer to the relevant technical documentation.

[0190] The first parameter refers to the energy peak detected when the user identifier field (i.e., the entryRole field) is at its first value (e.g., 0). The first parameter is used to characterize whether there is a suspected signal calling the current UE. For example, the first parameter is represented as... , or target displacement peak.

[0191] The second parameter refers to the maximum correlated peak value detected when the user identifier field (i.e., the entryRole field) is the second value (e.g., 1). The second parameter characterizes the strongest co-channel interference level generated by other devices within the cell at the current moment. For example, the second parameter is expressed as... This is also known as the maximum value of co-frequency interference.

[0192] The third parameter refers to the average cross-correlation output value measured within the silent window. The third parameter characterizes the neighboring cell interference and thermal noise floor at the current moment. For example, the third parameter is expressed as... , or mean ambient noise level.

[0193] In one possible implementation, the verification process can be understood as a double-reset reliability verification. Figure 4 An example flow of the verification process is shown. For example... Figure 4 As shown, it includes: Step 400: Determine the first parameter, the second parameter, and the third parameter.

[0194] For details on how to determine the first, second, and third parameters, please refer to the previous text; further details will not be provided here.

[0195] Step 401: Determine whether the absolute value of the difference between the first parameter and the third parameter does not exceed the first threshold value.

[0196] If the judgment result of step 401 is "yes", it means that the received signal is a noise signal (such as pure invalid noise) or the signal frequency is drifting, then step 404 is executed. For example, the process can be terminated and the UE enters a deep sleep state. If the judgment result of step 401 is "no", it means that there is a signal and further judgment is required, then step 402 is executed.

[0197] It should be noted that the purpose of introducing step 401 to determine whether the absolute value of the difference between the first parameter and the third parameter does not exceed the first threshold is to determine whether there is a valid received signal so as to filter out noise signals.

[0198] For example, the first threshold value is denoted as Δ_th; that is, the judgment... Is it true; if If this is true, it means the target-related peak value is not significantly higher than the noise baseline, so it can be determined that no reliable wake-up peak has been formed, and then proceed to step 404; if If this is not the case, it indicates that there may be a wake-up signal, and step 402 needs to be executed for further judgment.

[0199] Step 402: Determine whether the isolation parameter exceeds the second threshold value. The isolation parameter is determined based on the first parameter, the second parameter, and the third parameter.

[0200] In other words, if the absolute value of the difference between the first parameter and the third parameter exceeds the first threshold, further judgment is required to determine whether the received signal is a wake-up signal.

[0201] It should be noted that the isolation parameter and the second threshold value are expressed in the same dimensions, such as power or energy linearity; or in dB.

[0202] In one possible implementation, the first, second, and third parameters all represent the relevant output value after logarithmic transformation or the power quantity expressed in dB.

[0203] For example, the isolation parameter is represented as M_iso ; M_iso Satisfy the following formula: ; in, Indicates the isolation parameter. It is the first parameter. It is the second parameter. It is the third parameter. This indicates the calculation of the average. = ( + / 2 In other words, by introducing the average value of co-channel interference and neighboring cell noise floor, the impact of wake-up noise floor fluctuations is dynamically offset.

[0204] The second threshold value can be configured by the network device for the UE. The second threshold value can be related to the cell environment. For example, the second threshold value can be expressed as... ; It can be determined by the target false alarm rate and link simulation.

[0205] Step 403: If the isolation parameter exceeds the second threshold, the verification passes.

[0206] For clarity, the term "exceeding" in the embodiments of this application can be understood as "greater than or equal to", represented by the corresponding mathematical symbol "". "; can also be understood as "greater than", represented by the corresponding mathematical symbol "". ";" can also be understood as "not less than". That is, the embodiments of this application do not specifically limit the case of "equal to", or whether the boundary value belongs to the range of "exceeding".

[0207] Accordingly, the term "not exceeding" mentioned in the embodiments of this application can be understood as "less than or equal to", represented by the corresponding mathematical symbol "". "; can also be understood as "less than", represented by the corresponding mathematical symbol "". ";" can also be understood as "not greater than". That is, the embodiments of this application do not specifically limit the case of "equal to", or whether the boundary value belongs to the range of "not exceeding".

[0208] It is understandable that, based on the above descriptions of "exceeding" and "not exceeding", when "exceeding" is understood as "greater than or equal to", "not exceeding" is understood as "less than"; when "exceeding" is understood as "greater than", "not exceeding" is understood as "less than or equal to".

[0209] For example, if If the verification is successful, the UE will trigger the main radio frequency.

[0210] Step 404: If the isolation parameter does not exceed the second threshold value, the verification fails.

[0211] For example, if If the verification fails, indicating a false alarm or interference from a neighboring cell, the UE will remain in deep sleep and will not wake up the receiver.

[0212] If the verification fails, the UE will not execute steps 304 to 306, but will instead enter the feedback mechanism, namely steps 307 to 309.

[0213] It should be noted that, Figure 4 The verification process shown is merely an exemplary description, and the embodiments of this application are not limited thereto. In fact, those skilled in the art can base their methods on... Figure 4 The design principles lead to other similar decision-making processes.

[0214] pass Figure 4 The verification process shown in this application provides a stronger false alarm suppression mechanism. This is because false triggering of two-stage DCI (or two-level DCI) usually depends on the correctness of the first-stage decoding (CRC pass / fail), but false detections may still occur in complex interference environments, leading to invalid entry into the second stage. This application introduces "dual reset confidence verification" on the UE side, using the noise baseline obtained from the silent window and the co-channel interference reference to construct isolation parameters and increase validity prediction. This allows for earlier and lower power filtering of false alarms before waking up MR, thereby reducing power consumption caused by invalid MR wake-up.

[0215] Furthermore, this embodiment uses cross-correlation detection on the LP-WUR side as a pre-determination, waking up the MR only during verification, thus reducing the power consumption overhead of being forced to perform the first-stage decoding even when there is no or weak service. The first-stage decoding includes Polar decoding and CRC verification.

[0216] Step 304: If the verification passes, the UE wakes up the second receiver, and the second receiver monitors the first search space.

[0217] For example, the second receiver is an MR.

[0218] For example, the UE triggers and starts a timer (such as lpwus-PDCCH-MonitoringTimer) to enter the DRX active time period, thereby ensuring compatibility with existing DRX or monitoring mechanisms. The duration of the timer can be sent to the target UE by the network device via RRC signaling during the initial access or connected state reconfiguration phase.

[0219] If the verification passes, the UE can obtain the time-domain resource location of the valid signal (i.e., the first wake-up signal), thereby obtaining the cyclic shift index. The UE uses the cyclic shift index to search within the first correspondence to obtain the corresponding DCI format indication information and search space identifier (e.g., dci-FormatIndicator is dci-1-0; searchSpaceId is SS#100), thus converging the UE's PDCCH blind detection space to a specific searchSpace and a specific DCI format. Using the obtained DCI format indication information and search space identifier, the UE only monitors the monitoring occasion of the searchSpace corresponding to searchSpaceId during timer operation and only decodes according to the DCI format indicated by the DCI format indication information. In this way, after waking up the second receiver, the UE can monitor the corresponding search space and decode according to the corresponding DCI format, without needing to search all search spaces, thereby reducing the second receiver's operating time; furthermore, decoding according to the corresponding DCI format helps improve decoding speed and success rate.

[0220] For the UE, the UE's second receiver (such as MR) only monitors the monitoring occasions corresponding to the search space identifier during the timer operation; and for each monitoring occasion, it decodes according to the pre-configured PDCCH and only according to the corresponding DCI format.

[0221] Optionally, in step 305, the UE determines whether the DCI decoding was successful within the timer. If the DCI decoding was successful within the timer, step 306 is executed; if the DCI decoding failed within the timer, a feedback process is executed (e.g., steps 307 to 309).

[0222] Step 306: The UE and network device enter the normal downlink procedure. The normal downlink procedure involves the network device sending downlink signaling or data to the UE. For example, the network device sends PDSCH or ACK signaling to the UE.

[0223] Compared to existing UEs that need to perform blind detection under multiple SearchSpace / CORESET, multiple aggregation levels, multiple candidate sets, and multiple DCI format assumptions, in this embodiment, the UE will only wake up the second receiver if the verification is successful. Furthermore, the second receiver only monitors the corresponding search space identifier, thereby shortening the working time of the second receiver, reducing the complexity of blind detection, and helping to save power consumption.

[0224] Figure 5 A method example diagram of an embodiment of this application is shown. For example... Figure 5 As shown, during the period from t0 to t1, the UE is in deep sleep (i.e., both LP-WUR and MR are off). The time period from t0 to t1 can also be named T. sleep The time period from t1 to t2 is the protection period, which can also be named T. Guard During t2 to t3, the UE enables LP-WUR to monitor and detect K time-domain resources; and the network device selects a specific time-domain resource (e.g., a micro-timeslot) from the K time-domain resources to transmit LP-WUS. After receiving signals from the K time-domain resources, the UE performs cross-correlation calculations to obtain the full-window power delay spectrum (PDP). During t3 to t4, the UE performs a verification process; that is, it extracts the first, second, and third parameters based on the PDP; and performs a verification process based on these three parameters. For details of the verification process, please refer to the previous text. Figure 4 The time period from t3 to t4 can be understood as the silent window mentioned earlier (for example, the UE determines the silent window based on the first window configuration information). When the UE passes the verification based on these three parameters, it starts or runs the monitoring timer during the period from t4 to t5 and wakes up the MR. The UE monitors the specified search space identifier based on the MR and decodes it according to the corresponding DCI format. That is, the blind detection space converges to the corresponding search space identifier and DCI format. If the DCI decoding is successful, the network device and the UE enter the normal downlink process, for example, the network device sends a PDSCH to the UE.

[0225] Among them, T Guard This is the protection interval before the UE performs monitoring on K time-domain resources (such as micro-timeslots), i.e., it is used to reserve startup and stabilization time for the UE to switch from deep sleep to a detectable state. For example, setting T... Guard The purpose during this period is to perform one or more of the following preparatory tasks: power-on and stabilization of the LP-WUR or front-end (local oscillator / clock stabilization, AGC / filter stabilization, etc.); timing alignment margin (to avoid missing micro-slot boundaries due to sleep clock drift or hardware startup jitter); and preparation for the sampling window of cross-correlation detection (to ensure that the sampling link is stable and available when micro-slot detection is actually entered).

[0226] In some application scenarios, due to factors such as interference, multipath propagation, or frequency offset, even with low-power wake-up triggering, false alarms may occur, causing the UE to be ineffectively woken up. Therefore, this application embodiment introduces the aforementioned verification process to enable the UE to determine false alarms with higher confidence, thereby reducing MR overhead caused by false wake-ups. In this application embodiment, if the verification fails, the UE can provide fast and low-overhead feedback to the network device, enabling the network device to promptly stop subsequent transmissions of the current session, thereby improving radio resource utilization and avoiding unnecessary interference.

[0227] Furthermore, the UE may fail the verification process, or even if the verification passes, it may fail to decode the DCI. In such cases, the UE can determine that the wake-up signal is a false alarm or an untrusted wake-up event. The UE sends feedback information to the network device to terminate the subsequent transmission of this session, thereby preventing the network side from continuing to occupy resources. The following description is based on steps 307 to 309.

[0228] Step 307: The UE sends feedback information to the network device. Correspondingly, the network device receives the feedback information. The feedback information is used to notify the network device that this wake-up trigger was invalid.

[0229] Feedback information can be understood as notifying the network device that this LP-WUS trigger is a false alarm or an untrusted wake-up event, or as requesting the network device to stop the subsequent transmission of this session.

[0230] In one possible implementation, the UE can send feedback information based on configuration information associated with the feedback information.

[0231] Optionally, the configuration message sent by the network device to the UE may also include configuration information related to the feedback information (e.g., falseAlarmFeedbackConfig). The configuration information related to the feedback information includes one or more of the following: uplink resources used to carry the feedback information, repetition count, offset information, and stop range information. Alternatively, the configuration information related to the feedback information may be predefined.

[0232] The uplink resources used to carry feedback information refer to the uplink resources used by the UE when sending feedback information to the network device. The UE can use these uplink resources to send feedback information to the network device. The uplink resources used to carry feedback information can be pre-configured resources. For example, physical uplink control channel (PUCCH) resources or a set of resources, meaning the UE uses PUCCH resources to send feedback information to the network device. Alternatively, the uplink resources used to carry feedback information can be represented by the faStopResource field.

[0233] The repetition count indicates the number of times the UE sends feedback information. By introducing the repetition count, the UE sends feedback information to the network device multiple times according to the repetition count, which improves the reliability of feedback information transmission. Of course, the repetition count can be an optional parameter. For example, the repetition count can be represented by the faStopRepetition field.

[0234] Offset information is used to indicate the offset relative to the current LP-WUS monitoring opportunity (or relative to the reference time of the current wake-up event) when sending feedback information. For example, offset information is represented by the faStopOffset field.

[0235] Stop range information is used to indicate the range of spectrum resources corresponding to the restriction on network device behavior. For example, restricting network device behavior includes, but is not limited to: stopping subsequent repeated LP-WUS transmissions; stopping subsequent PDCCH attempts; and releasing reserved resources.

[0236] For example, the RRC configuration includes the false alarm feedback parameter falseAlarmFeedbackConfig; the UE sends FA-STOP=1 on the uplink opportunity corresponding to faStopOffset according to falseAlarmFeedbackConfig. If faStopRepetition is also configured, the UE repeatedly sends FA-STOP=1 according to the configuration to improve reliability.

[0237] For clarity, the field names shown above or included in the configuration messages are merely illustrative examples, and this application does not impose specific limitations on domain names. For instance, the domain names mentioned in the examples above can be defined as other names, as long as they have the same functionality.

[0238] Step 308, the UE enters a low-power state.

[0239] In other words, after sending feedback information, the UE returns to a low-power state (i.e., the low-power wake-up receiver is enabled, while the main receiver (MR) is disabled, meaning only the LP-WUR gating is retained). This avoids consuming the energy of the main receiver (MR).

[0240] Alternatively, after completing the downlink process, the UE can enter a deep sleep state (i.e., both the low-power wake-up receiver and MR are turned off) and wait for the next wake-up signal cycle to listen.

[0241] Step 309: The network device performs session termination processing based on the feedback information. The session termination processing includes one or more of the following: canceling duplicate LP-WUS transmissions that have not yet occurred; canceling downlink control message transmissions; and releasing downlink resources.

[0242] For network devices, upon receiving feedback information, they associate it with the most recent LP-WUS-triggered session for that UE (e.g., based on the UE's corresponding uplink resource identifier and arrival time window), and immediately terminate subsequent actions of the session according to the stop range. After terminating the session, the network device will no longer send subsequent content to the UE for this trigger, thereby avoiding resource waste caused by "the network device continuing to send but the UE not accepting".

[0243] "Cancel duplicate LP-WUS transmissions that have not yet occurred" means that the network device cancels LP-WUS transmissions that were originally planned to be triggered repeatedly. "Cancel downlink control message transmission" includes canceling further downlink control transmissions such as subsequent PDCCH retries / multi-beam attempts. "Release downlink resources" includes releasing / reclaiming downlink resources reserved for this session but not yet actually transmitted.

[0244] It should be understood that the embodiments of this application do not specifically limit the execution order of steps 308 and 309. For example, step 308 may be executed first and step 309 may be executed later; or step 309 may be executed first and step 308 may be executed later; or steps 308 and 309 may be executed simultaneously.

[0245] The aforementioned method of UE sending feedback information after verification failure enables network devices to promptly truncate the originally planned repeated LP-WUS and subsequent PDCCH transmissions, avoiding the continued occupation of downlink resources when the UE has returned to a low-power state. At the same time, the UE does not start the fixed-point PDCCH monitoring window after verification failure, further avoiding invalid blind detection and MR power consumption caused by false alarms, achieving the dual benefits of false alarm suppression and false alarm closed-loop loss prevention.

[0246] Figure 6 A method example diagram of an embodiment of this application is shown. For example... Figure 6 As shown, during the period from t0 to t1, the UE is in deep sleep (i.e., both the low-power wake-up receiver and MR are turned off). The period from t0 to t1 can also be named T... sleepThe period from t1 to t2 is the protection period. During t2 to t3, the UE enables LP-WUR to monitor and detect K time-domain resources; and the network device selects a specific time-domain resource (e.g., a micro-timeslot) from the K time-domain resources to transmit LP-WUS. After receiving the signal, the UE performs cross-correlation to obtain the full-window power delay spectrum (PDP). During t3 to t4, the UE performs a verification process; that is, it extracts the first, second, and third parameters based on the PDP and performs a verification process based on these three parameters. If the verification based on these three parameters fails, the UE sends feedback information to the network device during t4 to t5 (e.g., via PUCCH). The duration corresponding to t4 to t5 can also be named T. fb After the UE sends feedback information, the network device performs session termination processing. The UE returns to a low-power state between t4 and t6.

[0247] To facilitate understanding of the embodiments of this application, Figure 7 An example flowchart of an embodiment of this application is shown. It should be noted that... Figure 7 For explanations of terms or related descriptions, please refer to the preceding text; they will not be repeated here. For example... Figure 7 As shown, it includes the following steps: Step 700: Pre-configure, pre-define, or update the parameters or information involved in implementing the embodiments of this application.

[0248] The parameters involved in implementing the embodiments of this application include the parameters configured by configuration messages in step 300 above. For related descriptions, please refer to the previous text, and they will not be repeated here.

[0249] For example, the parameters involved in implementing the embodiments of this application include one or more of the following: Information related to LP-WUS resources: starting RB index, available slot, available symbol; Information related to the LP-WUS sequence: MvalueAndSeqConfig, Codepoint field, Options 1-2, etc.; PDCCH configuration information: CORESET and search space (including AL / candidates / occasion, etc.); Implicit mapping (or first correspondence): cyclic shift index information and the corresponding DCI format and search space identifier; Configuration information for the silent window: the starting index S of the silent window, the length L of the silent window, the protection interval G, and the entryRole flag; Configuration information for the K micro-slots: the value of K, Indexing rules (or sorting rules), and the timeAnchor field; Configuration information for feedback information: uplink resources, offset information, number of repetitions, and stop range information corresponding to sending feedback information.

[0250] Step 701: The UE is in deep sleep mode.

[0251] Deep sleep state, i.e., both LP-WUR and MR of the UE are turned off.

[0252] Step 702, UE enters protection interval time T Guard .

[0253] Regarding the protection interval time T Guard The description can be found in the previous text.

[0254] During the protection interval T Guard During this period, the UE performs relevant preparatory work, including but not limited to: powering on the LP-WUR link, ensuring clock stability, and performing ADC preparation work.

[0255] Step 703: Calculate K micro-time slots.

[0256] Either the UE or the network device can perform step 703. For details on how to determine the K micro-time slots, please refer to the previous section on determining the implementation of the K time-domain resources; further details will not be provided here.

[0257] Step 704: The network device selects a suitable micro-time slot from the K micro-time slots and selects the corresponding cyclic shift index.

[0258] Step 705: The network device sends LP-WUS in the selected micro-time slot.

[0259] Step 706: The UE initiates LP-WUR to monitor K micro-time slots.

[0260] Step 707: The UE performs cross-correlation calculations to obtain the full-window PDP.

[0261] Step 708: The UE extracts the first parameter, the second parameter, and the third parameter.

[0262] Step 709: Determine whether the absolute value of the difference between the first parameter and the third parameter does not exceed the first threshold value.

[0263] Step 710: Determine whether the isolation parameter exceeds the second threshold value. The isolation parameter is determined based on the first parameter, the second parameter, and the third parameter.

[0264] The dual verification process in steps 709 and 710 ensures that MR is only woken up under high confidence conditions, effectively suppressing the energy consumption of invalid wake-up caused by false alarms or invalid triggers. The dual verification process can be found in the previous text. Figure 4 The description will not be elaborated here. Step 711: Verification passed, start the timer and wake up MR.

[0265] Step 712: The UE determines the corresponding search space identifier and DCI format based on pre-configured or pre-defined parameters.

[0266] In other words, when the UE uses the cyclic shift index to reverse look up the aforementioned first correspondence, it obtains the DCI format indication information and the search space identifier, which can be represented as (dci-FormatIndicator, searchSpaceId).

[0267] Step 713: The UE performs fixed-point monitoring and decoding.

[0268] Fixed-point monitoring means that the UE's MR performs monitoring based on the (dci-FormatIndicator, searchSpaceId) obtained in step 712 above. That is, within the timer, fixed-point PDCCH monitoring is performed only on the specified SearchSpace / CORESET, the specified aggregation level and the number of candidates, and according to the specified DCI format assumption. This enables the blind detection space to converge from the full space traversal of multiple SearchSpaces / multiple candidates / multiple formats to a minimal set, thereby significantly reducing the complexity of PDCCH blind detection and the number of decoding attempts, and shortening the UE's MR working time, thereby achieving the goal of reducing overall energy consumption.

[0269] Step 714: Determine whether the DCI was successfully decoded within the timer (or monitoring timer).

[0270] Alternatively, the timer can be an existing timer, such as lpwus-PDCCH-MonitoringTimer.

[0271] Step 715: Proceed to the normal downlink process.

[0272] In step 716, the UE determines that the alarm is false or the trigger is invalid. The UE does not start MR and returns to the low power state.

[0273] Low power state is when LP-WUR is on and MR is off.

[0274] Step 717: The UE sends feedback information.

[0275] For example, the feedback information is FA-STOP=1.

[0276] Step 718: After receiving the feedback information, the network device performs session termination processing.

[0277] For example, when the UE determines that the current wake-up trigger is untrusted, it does not enter the MR wake-up and subsequent fixed-point PDCCH monitoring process. Instead, it sends FA-STOP=1 through pre-configured uplink resources, causing the network device to terminate the subsequent actions of this wake-up session in a timely manner (including but not limited to: canceling the planned repeated LP-WUS, canceling subsequent PDCCH attempts / retryes, and releasing reserved resources). This avoids the waste of time and frequency resources and potential interference caused by "the network device continuing to send while the UE has returned to a low-power state," which helps to improve the system resource utilization. At the same time, the UE does not start MR when it determines that the current trigger is untrusted, which can further reduce the energy consumption cost caused by false alarms. It can also improve the reliability of feedback through optional retransmission, so that the false alarm suppression can be extended from "reducing the probability of occurrence" to the closed-loop control benefit of "timely loss prevention after occurrence."

[0278] Step 719: The UE returns to a low-power state or enters deep sleep, waiting for the next WUS cycle to perform listening (for example, some or all of the aforementioned steps can be performed again in the next WUS cycle).

[0279] In other words, when the normal downlink process ends, or after the UE sends feedback information, the UE returns to a low-power state or enters deep sleep to save power.

[0280] It should be understood that Figure 7 The process shown is for illustrative purposes only, and the embodiments of this application are not limited thereto.

[0281] It should also be understood that Figures 1A to 7 The flowcharts or scene diagrams shown are for illustrative purposes only and are not intended to limit the embodiments of this application to the examples illustrated. In fact, those skilled in the art can interpret the embodiments based on... Figures 1A to 7 The examples in the document can be transformed into equivalent ways to obtain more implementations.

[0282] The above text combined Figures 1A to 7 This document describes in detail the communication method provided in the embodiments of this application. The following will combine... Figure 8 and Figure 9 The device embodiments of this application are described in detail below. It should be understood that the communication device of this application embodiment can execute the various communication methods of the foregoing embodiments of this application, that is, the specific working processes of the various products below can be referred to the corresponding processes in the foregoing method embodiments.

[0283] In the embodiments described above, the UE can execute some or all of the steps in each embodiment; the network device can execute some or all of the steps in each embodiment. These steps or operations are merely examples, and the embodiments of this application can also perform other operations or variations of various operations. Furthermore, the steps can be executed in different orders as presented in the embodiments, and it is not necessary to execute all the operations in the embodiments of this application. Moreover, the sequence number of each step does not imply 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 this application.

[0284] Figure 8 This is a schematic block diagram of a communication device provided in an embodiment of this application. Figure 8 As shown, the communication device 1500 may include a communication module 1520. The communication module 1520 can implement corresponding communication functions, which can be internal communication functions of the communication device 1500 or communication functions between the communication device 1500 and other devices. Optionally, the communication module 1520 may also be referred to as a communication interface or transceiver module. Optionally, the communication device 1500 further includes a processing module 1510. The processing module 1510 can implement corresponding processing functions.

[0285] Optionally, the communication device 1500 further includes a storage module, which can be used to store instructions and / or data; the processing module 1510 can read the instructions and / or data in the storage module so that the communication device 1500 can implement the aforementioned method embodiments.

[0286] In one possible design, the communication device 1500 may correspond to the UE in the above method embodiments, or to a component (such as a circuit, chip, or chip system) configured in the UE. The communication device 1500 may be used to perform the steps or processes performed by the UE in any of the above method embodiments.

[0287] In one possible design, the UE includes a first receiver and a second receiver; the processing module 1510 is used to start the first receiver to detect K time-domain resources, wherein the K time-domain resources are determined by sampling the listening opportunities in the wake-up window; The processing module 1510 is also configured to perform a verification process based on the signals received in the K time-domain resources; The processing module 1510 is used to start the second receiver when the verification passes; the second receiver monitors the first search space; the search space identifier corresponding to the first search space is determined based on the first correspondence and the cyclic shift information; the first correspondence includes at least the relationship between the cyclic shift information and the search space identifier; wherein the cyclic shift information is determined based on the first time domain resource; wherein the UE receives the first wake-up signal in the first time domain resource, and the first time domain resource is a time domain resource among the K time domain resources.

[0288] Optionally, as a possible embodiment, the processing module 1510 is configured to perform a verification process based on the signals received in the K time-domain resources, including: performing the verification process based on at least one of a first parameter, a second parameter, and a third parameter, wherein the first parameter, the second parameter, and the third parameter are determined based on the power delay spectrum of the full window, and the power delay spectrum of the full window is determined based on cross-correlation operations performed on the signals received in the K time-domain resources.

[0289] Optionally, as a possible embodiment, the communication module 1520 is configured to receive a configuration message, the configuration message including one or more of the following: a first correspondence; configuration information related to K time-domain resources; and first window configuration information; The first correspondence includes: cyclic shift information; and DCI format indication information associated with the cyclic shift information, and / or, search space identifier associated with the cyclic shift information; The first window configuration information is used to configure a silent window.

[0290] Optionally, as a possible embodiment, the configuration information related to the K time-domain resources includes one or more of the following: indication information on whether to enable the K time-domain resources; the value of K; the generation rules of the K time-domain resources; the sorting rule identifier of the time-domain resources; the parameters of the hash function; and the time anchor parameters.

[0291] Optionally, as a possible embodiment, the first window configuration information includes the window length and / or the window's starting position.

[0292] Optionally, as a possible embodiment, the processing module 1510 is further configured to determine the first parameter, the second parameter, and the third parameter based on the full-window power delay spectrum (PDP); the first parameter refers to the energy peak detected at the cyclic shift value where the user identification field is a first value; the second parameter is the maximum correlation peak detected at the cyclic shift value where the user identification field is a second value; and the third parameter refers to the average cross-correlation output value measured within the silent window.

[0293] Optionally, as a possible embodiment, the processing module 1510 is configured to perform a verification process based on at least one of the first parameter, the second parameter, and the third parameter, including: Determine whether the absolute value of the difference between the first parameter and the third parameter does not exceed the first threshold value; If the absolute value does not exceed the first threshold, the verification is determined to have failed. If the absolute value exceeds the first threshold, it is determined whether the isolation parameter exceeds the second threshold. The isolation parameter is determined based on the first parameter, the second parameter, and the third parameter. If the isolation parameter exceeds the second threshold value, the verification is deemed successful. If the isolation parameter does not exceed the second threshold value, the verification is determined to have failed.

[0294] Optionally, as a possible embodiment, the processing module 1510 is further configured to start a timer if the verification passes; Based on the DCI format indication information, it is determined whether the DCI was successfully decoded during the operation of the timer. The DCI format indication information is determined based on the cyclic shift index information and the first correspondence. If decoding is successful, proceed with downlink transmission; In the event of decoding failure, a feedback message is sent to the network device, which is used to notify the network device that this wake-up trigger is invalid.

[0295] Optionally, as a possible embodiment, the processing module 1510 is further configured to call the communication module 1520 to send feedback information to the network device if the verification fails. The feedback information is used to notify the network device that the wake-up trigger is invalid.

[0296] Optionally, as a possible embodiment, the configuration message further includes: configuration information related to the feedback information; the configuration information related to the feedback information includes one or more of the following: uplink resources for carrying the feedback information, repetition count, offset information, and stop range information.

[0297] Optionally, as a possible embodiment, the processing module 1510 is further configured to turn off the first receiver and the second receiver when sending feedback information; or, turn off the second receiver while the first receiver is in an on state.

[0298] Optionally, as a possible embodiment, the first receiver is an LP-WUR; the second receiver is an MR.

[0299] Alternatively, as a possible embodiment, the K time-domain resources are determined through hash multisampling.

[0300] Optionally, as a possible embodiment, the processing module 1510 is configured to perform a verification process based on the signals received in the K time-domain resources, including: Based on the configuration information of the first window, a verification process is performed in the silent window according to the signals received in the K time-domain resources.

[0301] Optionally, as a possible embodiment, the first receiver is a low-power wake-up receiver (LP-WUR); the second receiver is a master receiver (MR).

[0302] Alternatively, in another possible design, the communication device 1500 may correspond to the network device in the above method embodiments, or a component (such as a circuit, chip, or chip system) configured in the network device. The communication device 1500 can be used to perform the steps or processes performed by the network device in any of the above method embodiments.

[0303] In one possible design, the processing module 1510 is used to determine a first time domain resource from K time domain resources, wherein the K time domain resources are determined by sampling the listening opportunities in the wake-up window; The communication module 1520 is used to send a first wake-up signal in the first time domain resource, the first time domain resource being used to determine cyclic shift information, the cyclic shift information corresponding to search space identifier and / or DCI format indication information.

[0304] Optionally, as a possible embodiment, the communication module 1520 is further configured to send a configuration message, the configuration message including one or more of the following: a first correspondence; configuration information related to K time-domain resources; and first window configuration information; The first correspondence includes: cyclic shift information; and DCI format indication information associated with the cyclic shift information, and / or, search space identifier associated with the cyclic shift information; The first window configuration information is used to configure a silent window.

[0305] Optionally, as a possible embodiment, the configuration information related to the K time-domain resources includes one or more of the following: indication information on whether to enable the K time-domain resources; the value of K; the generation rules of the K time-domain resources; the sorting rule identifier of the time-domain resources; the parameters of the hash function; and the time anchor parameters.

[0306] Optionally, as a possible embodiment, the first window configuration information includes the window length and / or the window's starting position.

[0307] Optionally, as a possible embodiment, the communication module 1520 is further configured to receive feedback information, which is used to notify the network device that the current wake-up trigger is invalid.

[0308] Optionally, as an embodiment, the configuration message further includes: configuration information related to the feedback information; the configuration information related to the feedback information includes one or more of the following: uplink resources for carrying the feedback information, repetition count, offset information, and stop range information.

[0309] Optionally, as a possible embodiment, the processing module 1510 is further configured to perform session termination processing based on feedback information, the session termination processing including one or more of the following: canceling duplicate LP-WUS transmissions that have not yet occurred; canceling downlink control message transmissions; and releasing downlink resources.

[0310] The above are merely examples; for detailed steps or procedures, please refer to the descriptions in the foregoing embodiments.

[0311] Figure 9 This is another schematic block diagram of the communication device 1600 provided in the embodiments of this application. The communication device 1600 may be a chip, chip system, or processor, etc., in a UE (e.g., a UE) or network device that implements the above methods. The communication device 1600 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0312] like Figure 9 As shown, the communication device 1600 may include one or more processors 1610, which may also be referred to as processing units or processing modules, and can implement certain control functions. The processor 1610 may be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, while the central processing unit can be used to control the communication device 1600 (e.g., a base station, baseband chip, user, user chip), execute software programs, and process data from the software programs.

[0313] In an alternative design, the processor 1610 may also store instructions and / or data that can be executed by the processor 1610 to cause the communication device 1600 to perform the methods described in the above method embodiments.

[0314] In another alternative design, the communication device 1600 may include a communication interface 1620 for implementing receiving and transmitting functions. For example, the communication interface 1620 may be a transceiver circuit, interface, interface circuit, or transceiver. The transceiver circuit, interface, interface circuit, or transceiver for implementing receiving and transmitting functions may be separate or integrated. The aforementioned transceiver circuit, interface, interface circuit, or transceiver may be used for reading and writing code / data, or it may be used for transmitting or relaying signals.

[0315] Optionally, the communication device 1600 may include one or more memories 1630, which may store instructions that can be executed on the processor 1610, causing the communication device 1600 to perform the methods described in the above method embodiments. Optionally, the memories 1630 may also store data. Optionally, the processor 1610 may also store instructions and / or data. The processor 1610 and the memories 1630 may be provided separately or integrated together.

[0316] It should be understood that, in one possible design, the steps in the method embodiments provided in this application can be implemented by integrated logic circuits in the processor's hardware or by instructions in software form. The steps of the methods disclosed in the embodiments of this application can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method. To avoid repetition, detailed descriptions are not provided here.

[0317] In one implementation, the communication device 1600 may correspond to the UE in the above method embodiments and may be used to execute various steps and / or processes performed by the UE in the above method embodiments. The processor 1610 may be used to execute instructions stored in the memory 1630, and when the processor 1610 executes the instructions stored in the memory, the processor 1610 is used to execute various steps and / or processes of the above method embodiments corresponding to the UE.

[0318] In another implementation, the communication device 1600 may correspond to a network device (such as a satellite or base station) in the above method embodiments, and may be used to execute the various steps and / or processes executed by the network device in the above method embodiments. The processor 1610 may be used to execute instructions stored in the memory 1630, and when the processor 1610 executes the instructions stored in the memory, the processor 1610 is used to execute the various steps and / or processes of the above method embodiments corresponding to the network device.

[0319] It should be understood that the aforementioned processing device can be one or more chips. For example, the processing device can be a field-programmable gate array (FPGA), an application-specific integrated circuit (ASIC), a system-on-chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), or other integrated chips.

[0320] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0321] According to the method provided in the embodiments of this application, this application also provides a chip system, which includes one or more processors for calling and executing instructions stored in memory, thereby causing the method described in the embodiments of this application to be executed. The chip system may be composed of chips or may include chips and other discrete devices.

[0322] The chip system may include output circuits or interfaces for transmitting information or data, and input circuits or interfaces for receiving information or data.

[0323] According to the method provided in the embodiments of this application, this application also provides a communication system, which includes the aforementioned network device and UE.

[0324] According to the method provided in the embodiments of this application, this application also provides a computer program product, which includes: computer program code, which, when run on a computer, causes the computer to execute the various steps or processes executed by the network device or UE in any of the foregoing method embodiments.

[0325] According to the method provided in the embodiments of this application, this application also provides a computer-readable storage medium storing program code, which, when run on a computer, causes the computer to execute the various steps or processes performed by the network device or UE in any of the foregoing method embodiments.

[0326] The computer-readable storage medium may be the aforementioned volatile memory or non-volatile memory, or it may include both volatile memory and non-volatile memory.

[0327] In the embodiments of this application, the terms and English abbreviations are exemplary examples given for ease of description and should not be construed as limiting the application in any way. This application does not preclude the possibility of defining other terms that can achieve the same or similar functions in existing or future agreements.

[0328] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When these computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated.

[0329] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0330] It should be understood that in the various embodiments of this application, the sequence number of each process does not imply 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 this application.

[0331] Furthermore, the terms "system" and "network" are often used interchangeably in this paper. The term "and / or" in this paper merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this paper generally indicates that the preceding and following related objects have an "or" relationship. For example, A / B can represent A or B.

[0332] In the embodiments of this application, the terms "information," "signal," "message," "channel," and "signaling" may sometimes be used interchangeably. It should be noted that, without emphasizing the distinction between them, their intended meanings are consistent. Similarly, the terms "of," "corresponding (relevant)," and "corresponding" may sometimes be used interchangeably. It should be noted that, without emphasizing the distinction between them, their intended meanings are consistent.

[0333] To clarify, the specific implementation of "predefined" can include any of the following: protocol predefined, manufacturer-specified, defined by the communication equipment, pre-installed in the communication equipment at the time of manufacture, or agreed upon in advance by other agreed methods.

[0334] The terms (or designations) "first," "second," etc., appearing in the embodiments of this application are for descriptive purposes only, that is, only to distinguish different objects, and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more features. In the description of the embodiments of this application, "at least one (item)" refers to one or more. "Multiple" means two or more. "At least one (item) below" or similar expressions refer to any combination of these items, including any combination of a single (item) or a plurality of (items).

[0335] For example, expressions like "the item includes at least one of the following: A, B, and C" appearing in the embodiments of this application generally mean, unless otherwise specified, that the item can be any one of the following: A; B; C; A and B; A and C; B and C; A, B and C; A and A; A, A and A; A, A and B; A, A and C, A, B and B; A, C and C; B and B, B, B and B, B, B and C, C and C; C, C and C, and other combinations of A, B, and C. The above uses three elements, A, B, and C, as examples to illustrate the possible entries for the item. When expressed as "the item includes at least one of the following: A, B, ..., and X," that is, when the expression contains more elements, then the applicable entries for the item can also be obtained according to the aforementioned rules.

[0336] In summary, the above description is merely a preferred embodiment of the technical solution of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A communication method characterized by comprising: Applied to a user equipment (UE), the UE including a first receiver and a second receiver; the method includes: The first receiver is activated to detect K time-domain resources, which are determined by sampling the listening opportunities in the wake-up window; A verification process is performed based on at least one of the first parameter, the second parameter, and the third parameter, wherein the first parameter, the second parameter, and the third parameter are determined based on the power delay spectrum of the entire window, and the power delay spectrum of the entire window is determined based on cross-correlation calculation of the signals received in the K time-domain resources; the first parameter refers to the energy peak detected at the cyclic shift value where the user identifier field is a first value; the second parameter is the maximum correlation peak detected at the cyclic shift value where the user identifier field is a second value; and the third parameter refers to the average cross-correlation output value measured within the silent window. If the verification passes, the second receiver is activated; the second receiver monitors the first search space; the search space identifier corresponding to the first search space is determined based on the first correspondence and the cyclic shift information; the first correspondence includes at least the relationship between the cyclic shift information and the search space identifier; The cyclic shift information is determined based on a first time-domain resource; the UE receives the first wake-up signal in the first time-domain resource, and the first time-domain resource is a time-domain resource among the K time-domain resources.

2. The method of claim 1, wherein, The method further includes: Receive a configuration message, the configuration message including one or more of the following: a first correspondence; configuration information related to K time-domain resources; first window configuration information; The first correspondence includes: cyclic shift information; and DCI format indication information associated with the cyclic shift information, and / or, search space identifier associated with the cyclic shift information; The first window configuration information is used to configure a silent window.

3. The method of claim 2, wherein, The configuration information related to the K time-domain resources includes one or more of the following: indication information on whether to enable the K time-domain resources; the value of K; the generation rules of the K time-domain resources; the sorting rule identifier of the time-domain resources; the parameters of the hash function; and the time anchor parameters.

4. The method of claim 2, wherein, The first window configuration information includes the window length and / or the window's starting position.

5. The method according to claim 1, characterized in that, The step of performing the verification process based on at least one of the first parameter, the second parameter, and the third parameter includes: Determine whether the absolute value of the difference between the first parameter and the third parameter does not exceed the first threshold value; If the absolute value does not exceed the first threshold, the verification is determined to have failed. If the absolute value exceeds the first threshold, it is determined whether the isolation parameter exceeds the second threshold. The isolation parameter is determined based on the first parameter, the second parameter, and the third parameter. The isolation parameter is obtained by calculating the difference between the first parameter and the average value, which is obtained by averaging the second parameter and the third parameter. If the isolation parameter exceeds the second threshold value, the verification is deemed successful. If the isolation parameter does not exceed the second threshold value, the verification is determined to have failed.

6. The method according to claim 1, characterized in that, If the verification passes, the method further includes: Start the timer; Based on the DCI format indication information, it is determined whether the DCI was successfully decoded during the operation of the timer. The DCI format indication information is determined based on the cyclic shift information and the first correspondence. If decoding is successful, proceed with downlink transmission; In the event of decoding failure, a feedback message is sent to the network device, which is used to notify the network device that this wake-up trigger is invalid.

7. The method according to claim 1, characterized in that, The method further includes: If the verification fails, a feedback message is sent to the network device, which is used to notify the network device that the wake-up trigger is invalid.

8. The method according to claim 7, characterized in that, The configuration message also includes: configuration information related to the feedback information; the configuration information related to the feedback information includes one or more of the following: uplink resources used to carry the feedback information, repetition count, offset information, and stop range information.

9. The method according to claim 6 or 7, characterized in that, When sending feedback information, the method further includes: Turn off the first receiver and the second receiver; Alternatively, the second receiver can be turned off while the first receiver is turned on.

10. The method according to claim 1, characterized in that, The K time-domain resources were determined through hash multisampling.

11. The method according to claim 2, characterized in that, The execution verification process includes: Based on the configuration information of the first window, a verification process is performed in the silent window according to the signals received in the K time-domain resources.

12. The method according to any one of claims 1 to 7, characterized in that, The first receiver is a low-power wake-up receiver (LP-WUR); the second receiver is a master receiver (MR).

13. A communication method, characterized in that, Applied to network devices, the method includes: The first time-domain resource is determined from K time-domain resources, wherein the K time-domain resources are determined by sampling the listening opportunities in the wake-up window; A first wake-up signal is sent in the first time-domain resource, which is used by the UE to determine cyclic shift information, the cyclic shift information corresponding to a search space identifier and / or DCI format indication information; wherein, the UE is used to perform a verification process according to at least one of a first parameter, a second parameter, and a third parameter, and start a second receiver to monitor the first search space if the verification passes; the first parameter, the second parameter, and the third parameter are determined based on the power delay spectrum of the full window, the power delay spectrum of the full window is determined based on cross-correlation operation performed on the signals received in the K time-domain resources; the search space identifier corresponding to the first search space is determined based on a first correspondence and the cyclic shift information; the first correspondence includes at least the relationship between the cyclic shift information and the search space identifier; the first parameter refers to the energy peak detected at the cyclic shift value where the user identifier field is a first value; the second parameter is the maximum correlation peak detected at the cyclic shift value where the user identifier field is a second value; the third parameter refers to the average cross-correlation output value measured within the silent window.

14. The method according to claim 13, characterized in that, The method further includes: Send a configuration message, the configuration message including one or more of the following: a first correspondence; configuration information related to K time-domain resources; first window configuration information; The first correspondence includes: cyclic shift information; and DCI format indication information associated with the cyclic shift information, and / or, search space identifier associated with the cyclic shift information; The first window configuration information is used to configure a silent window.

15. The method according to claim 14, characterized in that, The configuration information related to the K time-domain resources includes one or more of the following: indication information on whether to enable the K time-domain resources; the value of K; the generation rules of the K time-domain resources; the sorting rule identifier of the time-domain resources; the parameters of the hash function; and the time anchor parameters.

16. The method according to claim 14, characterized in that, The first window configuration information includes the window length and / or the window's starting position.

17. The method according to any one of claims 13 to 16, characterized in that, The method further includes: The system receives feedback information, which is used to notify the network device that the current wake-up trigger is invalid.

18. The method according to claim 17, characterized in that, The configuration message also includes: configuration information related to the feedback information; the configuration information related to the feedback information includes one or more of the following: uplink resources used to carry the feedback information, repetition count, offset information, and stop range information.

19. The method according to claim 17, characterized in that, The method further includes: Based on the feedback information, a session termination process is performed, which includes one or more of the following: canceling duplicate LP-WUS transmissions that have not yet occurred; canceling downlink control message transmissions; and releasing downlink resources.

20. A communication device, characterized in that, The device includes at least one processor coupled to a memory storing a program or instructions, wherein the processor executes the program or instructions to cause the communication device to perform the method as claimed in any one of claims 1 to 12, or to cause the communication device to perform the method as claimed in any one of claims 13 to 19.

21. A computer-readable storage medium having a computer program or instructions stored thereon, characterized in that, When the computer program or instructions are executed, they cause the computer to perform the method as described in any one of claims 1 to 12, or cause the computer to perform the method as described in any one of claims 13 to 19.

22. A communication system, characterized in that, Includes the communication device as described in claim 20.

23. A chip system, characterized in that, The chip system includes one or more processors, which are configured to retrieve and execute instructions stored in memory, such that the method as claimed in any one of claims 1 to 12 is executed, or that the method as claimed in any one of claims 13 to 19 is executed.

24. A computer program product, characterized in that, It includes computer program instructions that cause a computer to perform the method as described in any one of claims 1 to 12; or, cause a computer to perform the method as described in any one of claims 13 to 19.

Images