State determination method and device, equipment, storage medium and program product

Abstract

The invention discloses a state determination method and device, equipment, a storage medium and a program product, and relates to the technical field of communication. The method comprises: in a first state, the terminal device maintains the first state or switches to a second state according to a wake-up signal (510); and in the second state, the terminal device maintains the second state or switches to the first state according to the signal strength of the reference signal (520). In different states, different target signals (such as wake-up signals or reference signals) are received and measured to select to enter an appropriate state, so that the purpose of saving power is achieved.

Description

State determination method, device, equipment, storage medium and program product Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and in particular to a state determination method, apparatus, device, storage medium, and program product. Background Art

[0002] In related art, a terminal energy-saving mechanism based on waking up a receiver is introduced to save energy for the terminal. With this mechanism, the terminal device can switch between a low power consumption state and a normal power consumption state.

[0003] In low-power mode, the terminal device only turns on the wake-up receiver and turns off the main receiver. The terminal device uses this wake-up receiver to receive the wake-up signal. When the wake-up receiver receives the wake-up signal in low-power mode, the terminal device can switch to normal power mode. In normal power mode, the terminal device turns on the main receiver and uses it to receive synchronization signals, downlink control signals, and downlink data sent by the network device.

[0004] Currently, further research is needed on the state determination and switching of terminal devices to improve the power saving performance of terminal devices.

[0005] Summary of the Invention

[0006] The present application provides a method, apparatus, device, storage medium, and program product for determining a state. The technical solution is as follows:

[0007] According to one aspect of an embodiment of the present application, a state determination method is provided, the method being executed by a terminal device, the method comprising:

[0008] In the first state, maintaining the first state or switching to the second state according to the wake-up signal;

[0009] and / or,

[0010] In the second state, maintaining the second state or switching to the first state according to the signal strength of the reference signal;

[0011] The first state and the second state are different.

[0012] According to one aspect of an embodiment of the present application, a state determination device is provided, the device comprising:

[0013] A first processing module is configured to, in a first state, maintain the first state or switch to a second state according to a wake-up signal;

[0014] and / or,

[0015] a second processing module, configured to, in the second state, maintain the second state or switch to the first state according to the signal strength of the reference signal;

[0016] The first state and the second state are different.

[0017] According to one aspect of an embodiment of the present application, a terminal device is provided, comprising a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program to implement the above method.

[0018] According to one aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is configured to be executed by a processor to implement the above method.

[0019] According to one aspect of an embodiment of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions, and when the chip is running, is used to implement the above method.

[0020] According to one aspect of an embodiment of the present application, a computer program product is provided, which includes computer instructions stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the above method.

[0021] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0022] In the first state, the terminal device maintains the first state or switches to the second state according to the wake-up signal. In the second state, it maintains the second state or switches to the first state according to the signal strength of the reference signal. Thus, in different states, by receiving and measuring different target signals (such as wake-up signals or reference signals), the terminal device chooses to enter the appropriate state to achieve the purpose of saving power. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic diagram of a network architecture provided by an embodiment of the present application;

[0024] FIG2 is a schematic diagram of a DRX mechanism provided by an embodiment of the present application;

[0025] FIG3 is a schematic diagram of power saving in sleep mode according to an embodiment of the present application;

[0026] FIG4 is a block diagram of a receiver system based on zero-power wake-up according to an embodiment of the present application;

[0027] FIG5 is a flowchart of a state determination method provided by an embodiment of the present application;

[0028] FIG6 is a schematic diagram of amplitude modulation of a wake-up signal provided by an embodiment of the present application;

[0029] FIG7 is a schematic diagram of the coverage of a wake-up signal and a reference signal provided in one embodiment of the present application;

[0030] FIG8 is a schematic diagram of a terminal device performing state transition according to an embodiment of the present application;

[0031] FIG9 is a schematic diagram of the coverage of a wake-up signal and a reference signal provided in another embodiment of the present application;

[0032] FIG10 is a block diagram of a state determination device provided by one embodiment of the present application;

[0033] FIG11 is a schematic structural diagram of a terminal device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0035] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. A person skilled in the art will appreciate that, with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0036] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

[0037] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0038] The communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, and a standalone (SA) networking scenario.

[0039] The communication system in the embodiment of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as an unshared spectrum.

[0040] The embodiments of the present application can be applied to non-terrestrial networks (NTN) systems, and can also be applied to terrestrial networks (TN) systems.

[0041] Please refer to FIG1 , which shows a schematic diagram of a network architecture 100 provided by an embodiment of the present application. The network architecture 100 may include: a terminal device 10 , an access network device 20 , and a core network device 30 .

[0042] The terminal device 10 may refer to a UE (User Equipment), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent, or a user apparatus. Optionally, the terminal device 10 may also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5GS (5th Generation System) or a terminal device in a future-evolved PLMN (Public Land Mobile Network), etc., but the embodiments of the present application are not limited thereto. For ease of description, the above-mentioned devices are collectively referred to as terminal devices. The number of terminal devices 10 is generally multiple, and one or more terminal devices 10 may be distributed in each cell managed by an access network device 20. In the embodiments of the present application, “terminal device” and “UE” are often used interchangeably, but those skilled in the art will understand that the two generally express the same meaning.

[0043] Access network equipment 20 is a device deployed in an access network to provide wireless communication capabilities for terminal device 10. Access network equipment 20 may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems employing different wireless access technologies, the names of devices that provide access network equipment functions may vary. For example, in 5G NR systems, they are referred to as gNodeBs or gNBs. As communication technologies evolve, the term "access network equipment" may change. For ease of description, in the embodiments of this application, the aforementioned devices that provide wireless communication capabilities for terminal device 10 are collectively referred to as access network equipment. Optionally, a communication relationship can be established between terminal device 10 and core network equipment 30 through access network equipment 20. For example, in an LTE (Long Term Evolution) system, access network equipment 20 may be an Evolved Universal Terrestrial Radio Access Network (EUTRAN) or one or more eNodeBs within EUTRAN. In a 5G NR system, access network equipment 20 may be a Radio Access Network (RAN) or one or more gNBs within the RAN. In the embodiment of the present application, unless otherwise specified, the "network device" refers to the access network device 20, such as a base station.

[0044] The core network device 30 is a device deployed in the core network. The functions of the core network device 30 are mainly to provide user connections, user management, and service bearer, and to provide an interface to the external network as a bearer network. For example, the core network devices in the 5G NR system may include devices such as the AMF (Access and Mobility Management Function) entity, the UPF (User Plane Function) entity, and the SMF (Session Management Function) entity.

[0045] In some embodiments, the access network device 20 and the core network device 30 communicate with each other via an air interface technology, such as the NG interface in the 5G NR system. The access network device 20 and the terminal device 10 communicate with each other via an air interface technology, such as the Uu interface.

[0046] The "5G NR system" in the embodiments of the present application may also be referred to as a 5G system or an NR system, but those skilled in the art will understand its meaning. The technical solutions described in the embodiments of the present application may be applicable to LTE systems, 5G NR systems, subsequent evolution systems of 5G NR systems, and other communication systems such as NB-IoT (Narrow Band Internet of Things) systems, and this application does not limit this.

[0047] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) on the carrier used by the cell. The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0048] Before introducing the technical solutions of this application, we first introduce and explain some of the background technologies involved in this application. The following related technologies can be combined with the technical solutions of the embodiments of this application as optional solutions, and they all fall within the scope of protection of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0049] 1. DRX (Discontinuous Reception)

[0050] To conserve UE power, related systems support the DRX transmission mechanism. The main principle is to achieve discontinuous reception of signals in the time domain through semi-static configuration. When there is no data transmission, power consumption can be reduced by stopping PDCCH (Physical Downlink Control Channel) reception (this also disables PDCCH blind detection).

[0051] The DRX configuration method is to configure a DRX cycle for a UE in the RRC_CONNECTED state (RRC (Radio Resource Control) connected state). As shown in Figure 2, the DRX cycle consists of an "Active Time" and an "Inactive Time" (also known as a sleep period). During the "Active Time," the UE monitors and receives the PDCCH; during the "Inactive Time," the UE does not receive the PDCCH to reduce power consumption.

[0052] 2. Sleep mode energy saving

[0053] In 5G and LTE's evolving Carrier Aggregation (CA) / Dual Connectivity (DC) projects, energy-saving dormancy mode, also known as sleep mode, is supported. In dormancy mode, the UE can ignore the PDCCH of a carrier or significantly reduce PDCCH monitoring on a carrier. At the same time, the UE only needs to maintain some basic channel measurement signal reception, such as uplink and downlink synchronization and frequency calibration.

[0054] As shown in Figure 3, it exemplifies a schematic diagram of power consumption saving in sleep mode. Sub-figure (a) in Figure 3 shows a schematic diagram of PDCCH detection on a carrier or BWP (Bandwidth Part) in a non-sleep state, and sub-figure (b) in Figure 3 shows a schematic diagram of PDCCH detection on a carrier or BWP in a sleep state. In the non-sleep state, most time slots have power consumption such as PDCCH detection, PDSCH (Physical Downlink Shared Channel) caching and measurement; in the sleep state, only certain individual time slots have power consumption for PDCCH detection, and the power consumption in the sleep state can be greatly reduced.

[0055] In principle, network equipment can adjust the sleep state on a carrier-by-carrier basis based on the current system throughput. NR adjusts the sleep state of the secondary carrier by switching to a sleep BWP or non-sleep BWP, which in turn puts a carrier into a sleep or non-sleep state.

[0056] 3. UE energy saving based on receiver wake-up

[0057] In order to further save power for UE, relevant standards consider introducing a wake-up receiver (WUR) to receive wake-up signals. The wake-up receiver is a deeper sleep mode. It has the characteristics of extremely low cost, extremely low complexity and extremely low power consumption. It mainly receives the wake-up signal through a method based on envelope detection. In other ways, the use of similar traditional receiver methods is not ruled out. In short, the power consumption level of the wake-up receiver is several orders of magnitude lower than that of the traditional sleep mode. Generally, the power consumption of traditional receivers is greater than 100 milliwatts. The low-power receiver can be less than 1 milliwatt.

[0058] Therefore, the wake-up signal (Wake Up Signal, WUS) received by the wake-up receiver is different from the modulation method, waveform, etc. of the signal carried by the PDCCH defined in the standard. The wake-up signal is mainly an envelope signal that modulates the carrier signal by ASK (Amplitude Shift Keying). The demodulation of the envelope signal is also mainly based on the energy provided by the wireless radio frequency signal to drive the low-power circuit, so it can be passive. The wake-up receiver can also be powered by the UE. Regardless of the power supply method, the receiver greatly reduces power consumption compared to the traditional receiver of the UE. The wake-up receiver can be combined with the UE as an additional module of the UE receiver, or it can be used as a wake-up function module of a UE alone.

[0059] The block diagram of the receiver system based on zero-power wake-up is shown in Figure 4. The wake-up receiver receives the wake-up signal and can instruct the UE to turn on the main receiver if the UE needs to turn on the receiver. Otherwise, the UE's main receiver can be turned off.

[0060] The wake-up receiver does not need to be turned on and off to save power like traditional receivers. Instead, it can be activated by the WUS at any time and receive the wake-up signal. The wake-up signal is mainly an envelope signal that performs ASK modulation on the carrier signal. For example, the WUS signal used in 802.11 technology uses OOK (On-Off Keying) modulation. The modulation principle of OOK is to modulate the amplitude of the carrier signal to non-zero and zero values, corresponding to On and Off, respectively, to represent the information bit. OOK is also known as binary amplitude shift keying (2ASK). For example, a bit 1 is modulated to On, and a bit 0 is modulated to Off.

[0061] Please refer to Figure 5, which shows a flow chart of a state determination method provided by an embodiment of the present application. The method can be executed by a terminal device. The method may include at least one of the following steps 510 to 520:

[0062] Step 510: The terminal device is in the first state and maintains the first state or switches to the second state according to the wake-up signal.

[0063] Step 520: The terminal device, in the second state, maintains the second state or switches to the first state according to the signal strength of the reference signal.

[0064] In some embodiments, the first state and the second state are different, that is, the first state and the second state are two different states of the terminal device.

[0065] In some embodiments, the first state and the second state are different, including at least one of the following situations 1-3:

[0066] Case 1: The power consumption of the first state and the second state is different.

[0067] For example, the power consumption of the first state is less than that of the second state. Exemplarily, the first state can be called a low power consumption state or a low power consumption transceiver state, and the second state can be called a normal power consumption state or a normal transceiver state.

[0068] Case 2: The signal detection methods of the first state and the second state are different.

[0069] For example, in the first state, the terminal device detects the envelope signal modulated using ASK, but does not detect other signals; in the second state, the terminal device detects other signals. The complexity of the signal detection method in the first state is lower than the complexity of the signal detection method in the second state.

[0070] Case 3: The signal receiving methods of the first state and the second state are different.

[0071] For example, in the first state, the terminal device only measures or receives a wake-up signal. In the second state, the terminal device performs at least one of the following actions: receiving a downlink synchronization signal, measuring or receiving a reference signal, receiving downlink control information, receiving downlink data, etc. Optionally, in the second state, the terminal device also performs at least one of the following actions: sending an uplink reference signal, sending a random access request, sending uplink control information, sending uplink data, etc.

[0072] In some embodiments, the terminal device includes a first receiver and a second receiver. The second receiver is configured to receive a wake-up signal. In a first state, the first receiver is in an inoperative state, and the second receiver is in an operative state. In a second state, both the first receiver and the second receiver are in an operative state.

[0073] The first receiver and the second receiver are two different receivers. For example, the first receiver and the second receiver have different functions, such as receiving different signals, having different signal detection methods, or having different signal reception methods, etc. In some embodiments, the capability of the first receiver is greater than that of the second receiver. In some embodiments, the power consumption of the first receiver is greater than that of the second receiver. In some embodiments, the first receiver may be the main receiver in FIG. 4 , and the second receiver may be the wake-up receiver in FIG. 4 .

[0074] In some embodiments, the wake-up signal is a signal generated by modulating a binary sequence. Exemplarily, the form of the binary sequence includes at least one of the following: PN (Pseudo Noise) sequence, Gold sequence, M sequence, Hadamard sequence. Exemplarily, the modulation method includes at least one of the following: amplitude modulation, frequency modulation, phase modulation. As shown in FIG6 , it exemplarily shows a schematic diagram of amplitude modulation of the wake-up signal. Assuming that the signal or information sequence to be carried in the wake-up signal is 101010, the waveform of the wake-up signal without amplitude modulation is shown in waveform 61 in FIG6 , and the waveform of the wake-up signal after amplitude modulation is shown in waveform 62 in FIG6 . It can be seen from waveform 62 that different amplitudes are used to represent different values ​​of 0 and 1.

[0075] In some embodiments, the wake-up signal carries terminal identification information, and the terminal identification information is used to indicate one or more target terminal devices. Exemplarily, the terminal identification information includes at least one of the following: a cell access identifier of the target terminal device, an access group identifier of the target terminal device, and an inherent identifier of the target terminal device. The cell access identifier is an identifier used during the cell access process. For different terminal devices in the same cell, their cell access identifiers are different. Different terminal devices in the same cell can be distinguished by the cell access identifier. The access group identifier refers to the identifier of an access group. Different terminal devices in the same cell can be divided into multiple access groups. An access group can include at least one terminal device, and different access groups have different access group identifiers. The inherent identifier is an identifier used to distinguish different terminal devices. Different terminal devices have different inherent identifiers. For example, the inherent identifier can be SUPI (Subscription Permanent Identifier), SUCI (Subscription Concealed Identifier), PEI (Permanent Equipment Identifier), etc.

[0076] Exemplarily, the cell corresponding to the network device includes terminal device 1, terminal device 2, terminal device 3, terminal device 4, and terminal device 5. The network device broadcasts a wake-up signal to the terminal devices in the cell, and the target terminal devices indicated by the terminal identification information carried in the wake-up signal include terminal device 1 and terminal device 3. For example, the terminal identification information may include the cell access identifier of terminal device 1 and the cell access identifier of terminal device 3.

[0077] In some embodiments, the terminal device maintains the first state or switches to the second state according to the wake-up signal, including: if the one or more target terminal devices indicated by the terminal identification information carried in the wake-up signal include the terminal device, the terminal device switches to the second state. That is, if the terminal device receives the wake-up signal in the first state, and the one or more target terminal devices indicated by the terminal identification information carried in the wake-up signal include the terminal device, the terminal device switches from the first state to the second state. Optionally, if the one or more target terminal devices indicated by the terminal identification information carried in the wake-up signal do not include the terminal device, the terminal device maintains the first state.

[0078] Exemplarily, the terminal device receives a wake-up signal in a low power consumption state. If the wake-up signal includes identification information of the terminal device, the terminal device switches to a normal power consumption state; otherwise, the terminal device maintains a low power consumption state.

[0079] In some embodiments, the wake-up signal carries network identification information, which is used to indicate one or more target cells. Exemplarily, the network identification information is used to perform at least one of the following actions on the target cell's signal: search, detection, or demodulation. In other words, the terminal device can determine the target cell based on the network identification information and perform at least one of the following actions on the target cell's signal: search, detection, or demodulation.

[0080] Optionally, there is an association relationship between the network identification information and the identification information corresponding to the target cell. The terminal device determines the identification information of the target cell corresponding to the network identification information based on the network identification information carried in the wake-up signal and the corresponding relationship, thereby determining one or more target cells indicated by the network identification information. Among them, the identification information of the cell is used to distinguish different cells, and different cells correspond to different identification information. Taking into account that the encoding method of the wake-up signal may be different from the encoding method of the ordinary signal, and the sequence length that can be carried by the wake-up signal may be limited and may not reach the length required by the identification information of the cell, through the above method, it is defined that there is an association relationship between the network identification information and the identification information corresponding to the target cell. By carrying shorter network identification information in the wake-up signal (such as the number of bits or sequence length required for the network identification information is less than the number of bits or sequence length required for the identification information of the cell), it is possible to use shorter information in the wake-up information to indicate one or more target cells.

[0081] In some embodiments, the identification information corresponding to the target cell includes at least one of the following: a cell identification (cell ID) corresponding to the target cell, and a beam identification (beam ID) corresponding to the target cell.

[0082] Optionally, one network identification information is associated with one cell identification, that is, one network identification information corresponds to one cell ID, so that the network identification information is more flexible in indicating the cell; or, one network identification information is associated with multiple cell identifications, that is, one network identification information corresponds to multiple cell IDs, so that multiple cells can be indicated by only one network identification information.

[0083] Optionally, one network identification information is associated with one beam identification, i.e., one network identification information corresponds to one beam ID. This allows for greater flexibility in beam indication. Alternatively, one network identification information is associated with multiple beam identifications, i.e., one network identification information corresponds to multiple beam IDs. This allows multiple beams to be indicated using only one network identification information. Furthermore, one cell can correspond to one or more beams.

[0084] In some embodiments, the terminal device selects a target cell for residency or access. Exemplarily, the terminal device receives a wake-up signal in a low power consumption state. If the wake-up signal includes the identification information of the terminal device, the terminal device switches to a normal power consumption state; and if the wake-up signal carries network identification information, the terminal device selects the target cell indicated by the network identification information for residency or access. Optionally, if the network identification information indicates a target cell, the terminal device selects this target cell for residency or access; if the network identification information indicates multiple target cells, the terminal device selects one target cell from the multiple target cells for residency or access, such as random selection or selection based on signal quality or other selection methods, which is not limited in this application. Through the above method, in the case of a wake-up signal associated cell (i.e., the wake-up signal carries network identification information), the terminal device can determine the target cell based on the network identification information carried in the wake-up signal, and directly reside or access the target cell without initiating random access to the target cell, thereby improving the efficiency of the terminal device residing in or accessing the cell. Furthermore, if there is a correlation between the network identification information carried in the wake-up signal and the beam identification corresponding to the target cell, after the terminal device selects the target cell for residence or access, it can directly select the beam indicated by the beam identification corresponding to the target cell for reception and / or transmission.

[0085] In addition, if beams in different cells have different beam identifiers, the beam identifier corresponding to the target cell can indicate the target cell and the beam in the target cell, then the terminal device can determine the target cell and the beam in the target cell based only on the beam identifier corresponding to the target cell. If beams in different cells can have the same beam identifier, but different beams in the same cell have different beam identifiers, then the terminal device can determine the target cell and the beam in the target cell based on the cell identifier corresponding to the target cell and the beam identifier corresponding to the target cell.

[0086] In some embodiments, if one or more target terminal devices indicated by the terminal identification information carried in the wake-up signal include the terminal device, the terminal device initiates random access. Exemplarily, the terminal device receives a wake-up signal in a low-power state. If the wake-up signal includes the identification information of the terminal device, the terminal device switches to a normal power consumption state and initiates random access. In the above manner, when the wake-up signal is not associated with a cell (i.e., the wake-up signal does not carry network identification information), the terminal device switches from a low-power consumption state to a normal power consumption state and initiates random access, thereby achieving cell access.

[0087] In some embodiments, the terminal device, in the first state, maintains the first state or switches to the second state according to the wake-up signal, including: the terminal device, in the first state, maintains the first state or switches to the second state according to the signal strength of the wake-up signal. Exemplarily, the following cases may be included: a, b, or c.

[0088] Case a: If the signal strength of the wake-up signal is less than the first threshold, the terminal device switches to the second state; otherwise, the terminal device remains in the first state. The first threshold is configurable in dB (such as 0dB, -3dB, -6dB, -9dB, -12dB, etc.) or in dBm (such as -20dBm, -40dBm, -60dBm, -80dBm, etc.). This application does not limit the specific value of the first threshold.

[0089] Case b: If the signal strength of the wake-up signal is greater than the second threshold, the terminal device switches to the second state; otherwise, the terminal device remains in the first state. The second threshold is configurable in dB or dBm, and the specific value of the second threshold is not limited in this embodiment of the application.

[0090] Case c: If the wake-up signal fails, the terminal device switches to the second state; otherwise, the terminal device remains in the first state. The wake-up signal failure means that the terminal device cannot measure the wake-up signal, or the measured wake-up signal strength is less than a first threshold value, which is configurable.

[0091] In some embodiments, the terminal device receives a wake-up signal in the first state. If one or more target terminal devices indicated by the terminal identification information carried in the wake-up signal include the terminal device, the terminal device further maintains the first state or switches to the second state based on the signal strength of the wake-up signal. Exemplarily, the terminal device receives a wake-up signal in the first state. If one or more target terminal devices indicated by the terminal identification information carried in the wake-up signal include the terminal device, and the signal strength of the wake-up signal is less than a first threshold, the terminal device switches from the first state to the second state; otherwise (i.e., the one or more target terminal devices indicated by the terminal identification information carried in the wake-up signal do not include the terminal device, or the signal strength of the wake-up signal is not less than the first threshold), the terminal device maintains the first state.

[0092] In some embodiments, in the second state, the terminal device maintains the second state or switches to the first state based on the signal strength of the reference signal. The reference signal includes, but is not limited to, at least one of the following: SSB (Synchronization Signal Block), CSI-RS (Channel State Information Reference Signal), TRS (Tracking Reference Signal), PT-RS (Phase Tracking Reference Signal), etc. Exemplarily, the following cases may be included: case d, case e, case f, or case g.

[0093] Case d: If the signal strength of the reference signal is greater than the third threshold, the terminal device switches to the first state; otherwise, the terminal device remains in the second state. The third threshold is configurable in dB (e.g., 0dB, -3dB, -6dB, -9dB, -12dB, etc.) or in dBm (e.g., -20dBm, -40dBm, -60dBm, -80dBm, etc.). This application does not limit the specific value of the third threshold.

[0094] Case e: If the signal strength of the reference signal is less than the fourth threshold, the terminal device switches to the first state; otherwise, the terminal device remains in the second state. The fourth threshold is configurable in dB or dBm, and the specific value of the fourth threshold is not limited in this embodiment of the application.

[0095] Case f: If the reference signal fails, the terminal device switches to the first state; otherwise, the terminal device remains in the second state. Reference signal failure means that the terminal device cannot measure the reference signal, or the measured reference signal strength is less than a second threshold value, which is configurable.

[0096] Case g: If the reference signal is valid, the terminal device switches to the first state; otherwise, the terminal device maintains the second state.

[0097] In some embodiments, the above-mentioned cases a and d can be combined. In the first state, the terminal device measures the wake-up signal. If the signal strength of the wake-up signal is less than a first threshold, the terminal device switches to the second state; otherwise, the terminal device remains in the first state. In the second state, the terminal device measures the reference signal. If the signal strength of the reference signal is greater than a third threshold, the terminal device switches to the first state; otherwise, the terminal device remains in the second state.

[0098] As shown in Figure 7, it shows a schematic diagram of the coverage range of a wake-up signal and a reference signal. In Figure 7, the coverage range 71 of the wake-up signal sent by the network device (the area shown by the dotted fill in the figure, that is, the area within the small circle indicated by the mark 71) is smaller than the coverage range 72 of the reference signal sent by the network device (the area shown by the dotted fill in the figure and the area shown by the white fill, that is, the area within the large circle indicated by the mark 72), or the coverage capability of the second receiver is smaller than the coverage capability of the first receiver. In this case shown in Figure 7, the state transition diagram of the terminal device can be shown in Figure 8. When the terminal device is in a low power consumption state, if the signal strength of the wake-up signal measured by the terminal device is less than the first threshold value, it means that the terminal device is likely to be at the edge of the cell, such as the position of UE 2 in the figure, and the terminal device can switch from the low power consumption state to the normal power consumption state; if the signal strength of the wake-up signal measured by the terminal device is not less than the first threshold value, it means that the terminal device is not at the edge of the cell, such as the position of UE 1 in the figure, and the terminal device can maintain the low power consumption state. When the terminal device is in a normal power consumption state, if the signal strength of the reference signal measured by the terminal device is greater than the third threshold value, it means that the terminal device is not at the edge of the cell, and the terminal device may be at the center of the cell or close to the center, such as the position of UE 1 in the figure. At this time, the terminal device can switch from the normal power consumption state to the low power consumption state; if the signal strength of the reference signal measured by the terminal device is not greater than the third threshold value, it means that the terminal device may be at the edge of the cell, such as the position of UE 2 in the figure. At this time, the terminal device can maintain the normal power consumption state.

[0099] In some embodiments, the above-mentioned cases b and e can be combined. In the first state, the terminal device measures the wake-up signal. If the signal strength of the wake-up signal is greater than the second threshold, the terminal device switches to the second state; otherwise, the terminal device remains in the first state. In the second state, the terminal device measures the reference signal. If the signal strength of the reference signal is less than the fourth threshold, the terminal device switches to the first state; otherwise, the terminal device remains in the second state.

[0100] As shown in Figure 9, the coverage range 91 of the wake-up signal sent by the network device (the area shown by the dotted fill and the area shown by the white fill in the figure, that is, the area within the large circle indicated by the mark 91) is greater than the coverage range 92 of the reference signal sent by the network device (the area shown by the white fill in the figure, that is, the area within the small circle indicated by the mark 92), or the coverage capability of the second receiver is greater than the coverage capability of the first receiver. When the terminal device is in the first state, if the signal strength of the wake-up signal measured by the terminal device is greater than the second threshold value, it means that the terminal device is likely to be at the center or near the center of the cell, such as the position of UE 1 in the figure, and the terminal device can switch from the first state to the second state; if the signal strength of the wake-up signal measured by the terminal device is not greater than the second threshold value, it means that the terminal device is likely to be at the edge of the cell, such as the position of UE 2 in the figure, and the terminal device can maintain the first state. When the terminal device is in the second state, if the signal strength of the reference signal measured by the terminal device is less than the fourth threshold value, it means that the terminal device is likely to be at the edge of the cell, such as the position of UE 2 in the figure. At this time, the terminal device can switch from the second state to the first state; if the signal strength of the reference signal measured by the terminal device is not less than the fourth threshold value, it means that the terminal device is not at the edge of the cell, such as the position of UE 1 in the figure. At this time, the terminal device can maintain the second state.

[0101] According to the technical solution provided by the embodiment of the present application, in the first state, the terminal device maintains the first state or switches to the second state according to the wake-up signal; in the second state, the terminal device maintains the second state or switches to the first state according to the signal strength of the reference signal. Thus, in different states, by receiving and measuring different target signals (such as wake-up signals or reference signals), the terminal device can choose to enter the appropriate state to achieve the purpose of power saving.

[0102] Furthermore, by measuring and decoding the wake-up signal, the wake-up receiver of the terminal device can effectively receive the wake-up signal. The terminal device can utilize the coverage difference between the wake-up signal and the reference signal, and by measuring the signal strength, select the appropriate state to enter and measure the appropriate target signal (such as the wake-up signal or the reference signal), thereby maximizing the low power consumption of the terminal device's wake-up receiver and achieving better power savings.

[0103] The following are device embodiments of the present application, which can be used to implement the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

[0104] Please refer to Figure 10, which shows a block diagram of a state determination device provided by one embodiment of the present application. This device has the functions of implementing the above-mentioned method examples. The functions can be implemented by hardware or by hardware executing corresponding software implementations. This device can be the terminal device described above, or it can be set in a terminal device. As shown in Figure 10, the device 1000 may include: a first processing module 1010 and / or a second processing module 1020.

[0105] The first processing module 1010 is configured to, in a first state, maintain the first state or switch to a second state according to a wake-up signal.

[0106] The second processing module 1020 is configured to maintain the second state or switch to the first state according to the signal strength of the reference signal in the second state.

[0107] The first state and the second state are different.

[0108] In some embodiments, the wake-up signal carries terminal identification information, and the terminal identification information is used to indicate one or more target terminal devices.

[0109] In some embodiments, the terminal identification information includes at least one of the following: a cell access identifier of the target terminal device, an access group identifier of the target terminal device, and an inherent identifier of the target terminal device.

[0110] In some embodiments, the first processing module 1010 is configured to switch to the second state if the one or more target terminal devices include the terminal device; and / or maintain the first state if the one or more target terminal devices do not include the terminal device.

[0111] In some embodiments, the wake-up signal carries network identification information, and the network identification information is used to indicate one or more target cells.

[0112] In some embodiments, the network identification information is used to perform at least one of the following actions on the signal of the target cell: search, detection, and demodulation.

[0113] In some embodiments, there is an association relationship between the network identification information and the identification information corresponding to the target cell.

[0114] In some embodiments, the identification information corresponding to the target cell includes at least one of the following: a cell identification corresponding to the target cell, and a beam identification corresponding to the target cell.

[0115] In some embodiments, the first processing module 1010 is further configured to select the target cell for residency or access.

[0116] In some embodiments, the first processing module 1010 is further configured to initiate random access if the one or more target terminal devices include the terminal device.

[0117] In some embodiments, the first processing module 1010 is configured to: switch to the second state if the signal strength of the wake-up signal is less than a first threshold; otherwise, maintain the first state.

[0118] In some embodiments, the first processing module 1010 is configured to: switch to the second state if the signal strength of the wake-up signal is greater than a second threshold; otherwise, maintain the first state.

[0119] In some embodiments, the first processing module 1010 is configured to: if the wake-up signal fails, switch to the second state; otherwise, maintain the first state.

[0120] In some embodiments, the second processing module 1020 is configured to: switch to the first state if the signal strength of the reference signal is greater than a third threshold; otherwise, maintain the second state.

[0121] In some embodiments, the second processing module 1020 is configured to: switch to the first state if the signal strength of the reference signal is less than a fourth threshold; otherwise, maintain the second state.

[0122] In some embodiments, the second processing module 1020 is configured to: switch to the first state if the reference signal fails; otherwise, maintain the second state.

[0123] In some embodiments, the second processing module 1020 is configured to: if the reference signal is valid, switch to the first state; otherwise, maintain the second state.

[0124] In some embodiments, the wake-up signal is a signal generated by modulating a binary sequence.

[0125] In some embodiments, the binary sequence comprises at least one of the following: a PN sequence, a Gold sequence, an M sequence, and a Hadamard sequence.

[0126] In some embodiments, the modulation method includes at least one of the following: amplitude modulation, frequency modulation, and phase modulation.

[0127] In some embodiments, the reference signal includes at least one of the following: SSB, CSI-RS, TRS, PT-RS.

[0128] In some embodiments, the terminal device includes a first receiver and a second receiver, the second receiver is used to receive the wake-up signal; in the first state, the first receiver is in a non-working state, and the second receiver is in a working state; in the second state, both the first receiver and the second receiver are in a working state.

[0129] In some embodiments, the first state and the second state are different, including at least one of the following: the power consumption of the first state and the second state is different; the signal detection method of the first state and the second state is different; the signal reception method of the first state and the second state is different.

[0130] It should be noted that, when the device provided in the above embodiment realizes its function, it only uses the division of the above-mentioned functional modules as an example. In actual application, the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0131] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0132] Please refer to FIG11 , which shows a schematic diagram of the structure of a terminal device provided by an embodiment of the present application. The terminal device 1100 may include: a processor 1101 , a transceiver 1102 , and a memory 1103 .

[0133] The processor 1101 includes one or more processing cores, and the processor 1101 executes various functional applications and information processing by running software programs and modules. Exemplarily, the processor 1101 is used to implement the functions of the first processing module 1010 and the second processing module 1020 in the above-mentioned device embodiment.

[0134] The transceiver 1102 may include a receiver and a transmitter. For example, the receiver and the transmitter may be implemented as the same wireless communication component, which may include a wireless communication chip and a radio frequency antenna.

[0135] The memory 1103 may be connected to the processor 1101 and the transceiver 1102 .

[0136] The memory 1103 may be used to store a computer program executed by the processor, and the processor 1101 is used to execute the computer program to implement the various steps performed by the terminal device in the above method embodiment.

[0137] In addition, the memory 1103 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disk or optical disk, electrically erasable programmable read-only memory, erasable programmable read-only memory, static random access memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0138] In some embodiments, the processor 1101 is used to, in a first state, maintain the first state or switch to a second state according to a wake-up signal; and / or, in a second state, maintain the second state or switch to the first state according to the signal strength of a reference signal; wherein the first state and the second state are different.

[0139] For details not described in detail in this embodiment, please refer to the above embodiments and will not be described in detail here.

[0140] An embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored. The computer program is used to be executed by a processor of a terminal device (including a zero-power consumption terminal) to implement the above-mentioned state determination method.

[0141] Optionally, the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives), or an optical disk, etc. Among them, the random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).

[0142] An embodiment of the present application also provides a chip, which includes a programmable logic circuit and / or program instructions. When the chip runs on a terminal device (including a zero-power terminal), it is used to implement the above-mentioned state determination method.

[0143] An embodiment of the present application also provides a computer program product, which includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. The processor of the terminal device reads and executes the computer instructions from the computer-readable storage medium to implement the above-mentioned state determination method.

[0144] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0145] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0146] In some embodiments of the present application, "predefined" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, predefined may refer to information defined in a protocol.

[0147] In some embodiments of the present application, the "protocol" may refer to a standard protocol in the field of communications, for example, it may include an LTE protocol, a NR protocol, and related protocols used in future communication systems, and this application does not limit this.

[0148] In this document, "plurality" refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0149] The term “less than” mentioned herein may be understood as less than, or may also be understood as less than or equal to; the term “greater than” mentioned herein may be understood as greater than, or may also be understood as greater than or equal to.

[0150] In addition, the step numbers described in this document only illustrate a possible execution order between the steps. In some other embodiments, the above steps may not be executed in the order of the numbers, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in the opposite order of the diagram. The embodiments of the present application are not limited to this.

[0151] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0152] The above description is merely an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A state determination method, characterized in that: The method is executed by a terminal device, and includes: In the first state, maintaining the first state or switching to the second state according to the wake-up signal; and / or, In the second state, maintaining the second state or switching to the first state according to the signal strength of the reference signal; The first state and the second state are different.

2. The method according to claim 1, characterized in that The wake-up signal carries terminal identification information, and the terminal identification information is used to indicate one or more target terminal devices.

3. The method according to claim 2, characterized in that The terminal identification information includes at least one of the following: a cell access identifier of the target terminal device, an access group identifier of the target terminal device, and an inherent identifier of the target terminal device.

4. The method according to claim 2 or 3, characterized in that The maintaining the first state or switching to the second state according to the wake-up signal includes: If the one or more target terminal devices include the terminal device, switching to the second state; and / or, If the one or more target terminal devices do not include the terminal device, the first state is maintained.

5. The method according to any one of claims 1 to 4, characterized in that The wake-up signal carries network identification information, and the network identification information is used to indicate one or more target cells.

6. The method according to claim 5, characterized in that The network identification information is used to perform at least one of the following actions on the signal of the target cell: search, detection, and demodulation.

7. The method according to claim 5 or 6, characterized in that There is an association relationship between the network identification information and the identification information corresponding to the target cell.

8. The method according to claim 7, characterized in that The identification information corresponding to the target cell includes at least one of the following: a cell identification corresponding to the target cell, and a beam identification corresponding to the target cell.

9. The method according to any one of claims 5 to 8, characterized in that The method further comprises: The target cell is selected for camping or access.

10. The method according to any one of claims 2 to 4, characterized in that The method further comprises: If the one or more target terminal devices include the terminal device, random access is initiated.

11. The method according to any one of claims 1 to 10, characterized in that The maintaining the first state or switching to the second state according to the wake-up signal includes: If the signal strength of the wake-up signal is less than the first threshold, switching to the second state; Otherwise, the first state is maintained.

12. The method according to any one of claims 1 to 10, characterized in that The maintaining the first state or switching to the second state according to the wake-up signal includes: If the wake-up signal fails, switching to the second state; Otherwise, the first state is maintained.

13. The method according to any one of claims 1 to 12, characterized in that Maintaining the second state or switching to the first state according to the signal strength of the reference signal includes: If the signal strength of the reference signal is greater than a third threshold, switching to the first state; Otherwise, the second state is maintained.

14. The method according to any one of claims 1 to 12, characterized in that Maintaining the second state or switching to the first state according to the signal strength of the reference signal includes: If the reference signal fails, switching to the first state; Otherwise, the second state is maintained.

15. The method according to any one of claims 1 to 14, characterized in that The wake-up signal is a signal generated by modulating a binary sequence.

16. The method according to claim 15, characterized in that The binary sequence may be in a form of at least one of the following: a pseudo-noise PN sequence, a Gold sequence, an M sequence, or a Hadamard sequence.

17. The method according to claim 15 or 16, characterized in that The modulation method includes at least one of the following: amplitude modulation, frequency modulation, and phase modulation.

18. The method according to any one of claims 1 to 17, characterized in that The reference signal includes at least one of the following: a synchronization signal block SSB, a channel state information reference signal CSI-RS, a tracking reference signal TRS, and a phase tracking reference signal PT-RS.

19. The method according to any one of claims 1 to 18, characterized in that The terminal device includes a first receiver and a second receiver, wherein the second receiver is configured to receive the wake-up signal; In the first state, the first receiver is in a non-working state, and the second receiver is in a working state; In the second state, both the first receiver and the second receiver are in working state.

20. The method according to any one of claims 1 to 19, characterized in that The first state and the second state are different, including at least one of the following: The first state and the second state have different power consumption; The signal detection methods of the first state and the second state are different; The signal receiving manners of the first state and the second state are different.

21. A state determination device, characterized in that: The device comprises: A first processing module is configured to, in a first state, maintain the first state or switch to a second state according to a wake-up signal; and / or, a second processing module, configured to, in the second state, maintain the second state or switch to the first state according to the signal strength of the reference signal; The first state and the second state are different.

22. The device according to claim 21, characterized in that The wake-up signal carries terminal identification information, and the terminal identification information is used to indicate one or more target terminal devices.

23. The device according to claim 22, characterized in that The terminal identification information includes at least one of the following: a cell access identifier of the target terminal device, an access group identifier of the target terminal device, and an inherent identifier of the target terminal device.

24. The device according to claim 22 or 23, characterized in that The first processing module is configured to: If the one or more target terminal devices include the terminal device, switching to the second state; and / or, If the one or more target terminal devices do not include the terminal device, the first state is maintained.

25. The device according to any one of claims 21 to 24, characterized in that The wake-up signal carries network identification information, and the network identification information is used to indicate one or more target cells.

26. The device according to claim 25, characterized in that The network identification information is used to perform at least one of the following actions on the signal of the target cell: search, detection, and demodulation.

27. The device according to claim 25 or 26, characterized in that There is an association relationship between the network identification information and the identification information corresponding to the target cell.

28. The device according to claim 27, characterized in that The identification information corresponding to the target cell includes at least one of the following: a cell identification corresponding to the target cell, and a beam identification corresponding to the target cell.

29. The device according to any one of claims 25 to 28, characterized in that The first processing module is further configured to select the target cell for residency or access.

30. The device according to any one of claims 22 to 24, characterized in that The first processing module is further configured to initiate random access if the one or more target terminal devices include the terminal device.

31. The device according to any one of claims 21 to 30, characterized in that The first processing module is configured to: If the signal strength of the wake-up signal is less than the first threshold, switching to the second state; Otherwise, the first state is maintained.

32. The device according to any one of claims 21 to 30, characterized in that The first processing module is configured to: If the wake-up signal fails, switching to the second state; Otherwise, the first state is maintained.

33. The device according to any one of claims 21 to 32, characterized in that The second processing module is configured to: If the signal strength of the reference signal is greater than a third threshold, switching to the first state; Otherwise, the second state is maintained.

34. The device according to any one of claims 21 to 32, characterized in that The second processing module is configured to: If the reference signal fails, switching to the first state; Otherwise, the second state is maintained.

35. The device according to any one of claims 21 to 34, characterized in that The wake-up signal is a signal generated by modulating a binary sequence.

36. The device according to claim 35, characterized in that The binary sequence may be in a form of at least one of the following: a pseudo-noise PN sequence, a Gold sequence, an M sequence, or a Hadamard sequence.

37. The device according to claim 35 or 36, characterized in that The modulation method includes at least one of the following: amplitude modulation, frequency modulation, and phase modulation.

38. The device according to any one of claims 21 to 37, characterized in that The reference signal includes at least one of the following: a synchronization signal block SSB, a channel state information reference signal CSI-RS, a tracking reference signal TRS, and a phase tracking reference signal PT-RS.

39. The device according to any one of claims 21 to 38, characterized in that The terminal device includes a first receiver and a second receiver, wherein the second receiver is configured to receive the wake-up signal; In the first state, the first receiver is in a non-working state, and the second receiver is in a working state; In the second state, both the first receiver and the second receiver are in working state.

40. The device according to any one of claims 21 to 39, characterized in that The first state and the second state are different, including at least one of the following: The first state and the second state have different power consumption; The signal detection methods of the first state and the second state are different; The signal receiving manners of the first state and the second state are different.

41. A terminal device, characterized in that: The terminal device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program to implement the method according to any one of claims 1 to 20.

42. A computer-readable storage medium, characterized in that The storage medium stores a computer program, which is configured to be executed by a processor to implement the method according to any one of claims 1 to 20.

43. A chip, characterized in that: The chip includes a programmable logic circuit and / or program instructions, and when the chip is running, is used to implement the method according to any one of claims 1 to 20.

44. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the method according to any one of claims 1 to 20.

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