Method and apparatus for information transmission

Abstract

Embodiments of the present application provide a method and apparatus for information transmission. The method can include: a terminal device receiving area identification information from a network device using a first frequency resource; based on the area identification information, the terminal device performing an area update procedure or receiving system information using a second frequency resource. Through the present application, public information can be transmitted on a WUR link, which not only can improve the working time of the terminal device on the WUR link and improve energy saving benefits, but also can reduce the access delay of the terminal device. The method provided in the embodiments can be applied to a communication system, such as 5G or NR, LTE, V2X, D2D, M2M, MTC, Internet of Things, etc.

Description

[0001] This application claims priority to Chinese Patent Application No. 202111227046.3, filed on October 21, 2021, entitled “A Method for Designing the Format of WUR”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communications, and more specifically, to a method and apparatus for information transmission. Background Technology

[0003] The terminal device can receive a wake-up signal through a separate low-power circuit, such as a wake-up receiver (WUR), while the main receiver can be in a deep sleep state. When the terminal device detects the wake-up signal through the WUR, it triggers the main receiver to wake up. After the main receiver wakes up, the terminal device can perform a paging reception process through the main receiver, such as receiving paging messages. Currently, no solution has revealed the specific functionality of the WUR. Summary of the Invention

[0004] This application provides a method and apparatus for information transmission. By transmitting public information on the WUR link, it is possible not only to increase the working time of terminal devices on the WUR link and improve energy-saving benefits, but also to reduce the access latency of terminal devices.

[0005] Firstly, a method for information transmission is provided. This method can be executed by a terminal device, or by a component of the terminal device (such as a chip or circuit), without limitation. For ease of description, the following explanation will use execution by a terminal device as an example.

[0006] The method may include: a terminal device using a first frequency resource to receive area identification information from a network device; and based on the area identification information, the terminal device using a second frequency resource to perform an area update procedure or receive system information.

[0007] Based on the above scheme, the terminal device can use the first frequency resource to receive area identification information from the network device, and based on the area identification information, the terminal device uses the second frequency resource to perform an area update procedure or receive system information. Taking WUR and master receiver as an example, the terminal device can use WUR to receive area identification information from the network device, thereby increasing the terminal device's working time on the WUR link and improving energy-saving benefits. In addition, if the terminal device discovers that it has entered a new area, it can activate the master receiver to perform an area update procedure or receive changed system information, thereby preventing the network from being unable to page the terminal device, or ensuring that the terminal device can receive the correct system information in a timely manner, reducing access latency after the terminal device is paged.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, the area identification information includes a tracking area identifier. Based on the area identification information, the terminal device uses a second frequency to perform an area update process or receive system information, including: when the terminal device determines that the tracking area of ​​the terminal device has been updated based on the tracking area identifier, the terminal device uses the second frequency resources to perform a tracking area update process.

[0009] Based on the above scheme, the terminal device receives the tracking area identifier through WUR. If the terminal device finds that it has entered a new tracking area, it can enable the main receiver to perform the tracking area update process, thereby informing the network side which new tracking area it is in, and avoiding the network side being unable to page the terminal device.

[0010] In conjunction with the first aspect, in some implementations of the first aspect, the area identification information includes an access network area identifier. Based on the area identification information, the terminal device uses a second frequency to perform an area update procedure or receive system information, including: when the terminal device determines that the access network area of ​​the terminal device has been updated according to the access network area identifier, the terminal device uses the second frequency resources to perform an access network area update procedure.

[0011] Based on the above scheme, the terminal device receives the access network area identifier through WUR. If the terminal device finds that it has entered a new access network area, it can enable the main receiver to perform the access network area update process, thereby informing the network side which new access network area it is in, and avoiding the network side being unable to page the terminal device.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the area identification information includes a cell identifier. Based on the area identification information, the terminal device uses a second frequency to perform an area update process or receive system information, including: when the terminal device determines that its cell has been updated based on the cell identifier, the terminal device uses the second frequency resources to receive system information of the cell indicated by the cell identifier.

[0013] Based on the above scheme, the terminal device receives the cell identifier via the WUR. If the terminal device discovers that it has entered a new cell, it can activate the master receiver to receive the system information of the new cell. This allows the terminal device to receive the correct system information in a timely manner, reducing access latency after the terminal device is paging. For example, if the terminal device does not obtain system information in a timely manner, after receiving a paging message via the WUR, it needs to first receive the system information of the new cell and know the paging configuration of the current cell before it can receive the information from the master receiver (this information is, for example, denoted as the first information, which may include one or more of the following: Paging Downlink Control Information (DCI), Paging Message, Paging Advance Indication (PEI)). Alternatively, it can know the random access configuration of the current cell before it can initiate random access. If the terminal device can obtain system information in advance, after receiving a paging message via the WUR, it can directly receive the first information from the master receiver or directly initiate random access, thereby reducing latency.

[0014] In conjunction with the first aspect, in some implementations of the first aspect, the terminal device uses a first frequency resource to receive area identification information from a network device, including: the terminal device uses the first frequency resource to receive a first signal from the network device, the first signal including area identification information, and the first signal also including paging information.

[0015] Based on the above scheme, area identification information and paging information can be carried in the same signal.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the terminal device uses the first frequency resource to receive area identification information from the network device, including: the terminal device uses the first frequency resource to receive a synchronization signal from the network device, the synchronization signal including the area identification information.

[0017] Based on the above scheme, the area identification information can be carried in the synchronization signal.

[0018] In conjunction with the first aspect, in some implementations of the first aspect, the area identification information is transmitted periodically.

[0019] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: the terminal device using a first frequency resource to receive a synchronization signal from a network device, the synchronization signal being transmitted periodically; the terminal device using the first frequency resource to receive area identification information from the network device, including: the terminal device using the first frequency resource to receive the area identification information from the network device after a preset time period following the receipt of the synchronization signal, wherein the preset time period is greater than or equal to 0.

[0020] In conjunction with the first aspect, in some implementations of the first aspect, the period of the area identification information is the same as the period of the synchronization signal.

[0021] Based on the above scheme, public information can always appear after the synchronization signal. When public information is close to the synchronization signal, the decoding performance of public information can be improved, and the reliability of public information transmission can be enhanced.

[0022] In conjunction with the first aspect, in some implementations of the first aspect, the period of the area identification information is an integer multiple of the period of the synchronization signal.

[0023] In conjunction with the first aspect, in some implementations of the first aspect, the terminal device includes a first module and a second module. The terminal device receives area identification information through the first module and executes an area update process or receives system information through the second module.

[0024] In conjunction with the first aspect, in some implementations of the first aspect, the waveform of the first signal is different from the waveform of the second signal; and / or, the modulation method of the first signal is different from the modulation method of the second signal; wherein, the first signal is a signal carrying area identification information and / or paging information, and the second signal is a signal transmitted by the terminal device using the second frequency resource.

[0025] In conjunction with the first aspect, in some implementations of the first aspect, the waveform and / or modulation method of the first signal is an on / off keying OOK; and / or, the waveform and / or modulation method of the second signal is orthogonal frequency division multiplexing (OFDM); wherein, the first signal is a signal carrying area identification information and / or paging information, and the second signal is a signal transmitted by the terminal device using the second frequency resource.

[0026] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: a terminal device using a first frequency resource to receive paging information from a network device, the paging information being used to indicate information of one or more terminal devices that need to receive paging, the one or more terminal devices including a terminal device; the terminal device receiving first information from the network device and / or initiating random access, wherein the first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0027] In conjunction with the first aspect, in certain implementations of the first aspect, the terminal device receiving first information from the network device and / or initiating random access includes: the terminal device using second frequency resources to receive first information from the network device and / or initiating random access.

[0028] For example, a terminal device initiates random access, including: the terminal device sending a random access preamble sequence to the network device.

[0029] In conjunction with the first aspect, in some implementations of the first aspect, the terminal device includes a first module and a second module. The terminal device receives area identification information and paging information through the first module, and the terminal device receives first information and / or initiates random access through the second module.

[0030] Secondly, a method for signal transmission is provided, which can be executed by a network device, or by a component of the network device (such as a chip or circuit), without limitation. For ease of description, the following explanation uses execution by a network device as an example.

[0031] The method may include: a network device using a first frequency resource to send area identification information, wherein the first frequency resource is further used to transmit paging information, the paging information including information about one or more terminal devices that need to receive the paging.

[0032] For example, a network device uses a second frequency resource to perform a region update procedure or send system information. Here, "the network device uses the second frequency resource to perform a region update procedure" can mean that after a terminal device initiates a region update procedure, the network device uses the second frequency resource to participate in that region update procedure.

[0033] Based on the above scheme, network devices can use the first frequency resource to transmit area identification information. Taking the WUR and the main receiver as an example, the network device can use the WUR to transmit area identification information, thereby increasing the network device's operating time on the WUR link and improving energy-saving benefits.

[0034] In conjunction with the second aspect, in some implementations of the second aspect, the area identification information includes one or more of the following: tracking area identifier, access network area identifier, and cell identifier.

[0035] In conjunction with the second aspect, in some implementations of the second aspect, the network device uses the first frequency resource to transmit area identification information, including: the network device uses the first frequency resource to transmit a first signal, the first signal including area identification information, and the first signal also including paging information.

[0036] In conjunction with the second aspect, in some implementations of the second aspect, the network device uses the first frequency resource to send area identification information, including: the network device uses the first frequency resource to send a synchronization signal, the synchronization signal including the area identification information.

[0037] In conjunction with the second aspect, in some implementations of the second aspect, the area identification information is transmitted periodically.

[0038] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes: the network device using a first frequency resource to send a synchronization signal, the synchronization signal being transmitted periodically; the network device using the first frequency resource to send area identification information, including: the network device using the first frequency resource to send the area identification information after a preset duration following the transmission of the synchronization signal, wherein the preset duration is greater than or equal to 0.

[0039] In conjunction with the second aspect, in some implementations of the second aspect, the period of the area identification information is the same as the period of the synchronization signal; or, the period of the area identification information is an integer multiple of the period of the synchronization signal.

[0040] In conjunction with the second aspect, in some implementations of the second aspect, the network device includes a first module and a second module, and the network device sends area identification information through the first module.

[0041] In conjunction with the first aspect, in some implementations of the first aspect, the waveform of the first signal is different from the waveform of the second signal; and / or, the modulation method of the first signal is different from the modulation method of the second signal; wherein, the first signal is a signal carrying area identification information and / or paging information, and the second signal is a signal transmitted by the network device using the second frequency resource.

[0042] In conjunction with the first aspect, in some implementations of the first aspect, the waveform and / or modulation method of the first signal is an on / off keying OOK; and / or, the waveform and / or modulation method of the second signal is orthogonal frequency division multiplexing (OFDM); wherein the first signal is a signal carrying area identification information and / or paging information, and the second signal is a signal transmitted by the network device using the second frequency resource.

[0043] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes: a network device using a first frequency resource to send paging information, the paging information including information about one or more terminal devices that need to receive the paging; the network device sending first information to one or more terminal devices and / or receiving random access preamble sequences from one or more terminal devices, wherein the first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0044] In conjunction with the second aspect, in certain implementations of the second aspect, the network device sending first information to one or more terminal devices and / or receiving random access preamble sequences from one or more terminal devices includes: the network device using a second frequency resource to send first information to one or more terminal devices and / or receive random access preamble sequences from one or more terminal devices.

[0045] In conjunction with the second aspect, in some implementations of the second aspect, the network device includes a first module and a second module. The network device sends area identification information and paging information through the first module, and sends first information to one or more terminal devices and / or receives random access preamble sequences from one or more terminal devices through the second module.

[0046] The benefits of the second aspect and various possible designs can be found in the description of the first aspect, and will not be repeated here.

[0047] Thirdly, a communication apparatus is provided for performing the method in any possible implementation of the first or second aspect described above. Specifically, the apparatus may include units and / or modules for performing the method in any possible implementation of the first or second aspect, such as processing units and / or communication units.

[0048] In one implementation, the device is a communication device (such as a terminal device or a network device). When the device is a communication device, the communication unit can be a transceiver or an input / output interface; the processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0049] In another implementation, the device is a chip, chip system, or circuit for communication equipment (such as terminal equipment or network equipment). When the device is a chip, chip system, or circuit for communication equipment, the communication unit can be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip, chip system, or circuit; the processing unit can be at least one processor, processing circuit, or logic circuit.

[0050] Fourthly, a communication apparatus is provided, comprising: at least one processor for executing a computer program or instructions stored in a memory to perform the method in any possible implementation of the first or second aspect described above. Optionally, the apparatus further comprises a memory for storing the computer program or instructions. Optionally, the apparatus further comprises a communication interface through which the processor reads the computer program or instructions stored in the memory.

[0051] In one implementation, the device is a communication device (such as a terminal device or a network device).

[0052] In another implementation, the device is a chip, chip system, or circuit for communication equipment (such as terminal equipment or network equipment).

[0053] Fifthly, this application provides a processor for performing the methods provided in the above aspects.

[0054] Unless otherwise specified, or if it does not contradict its actual function or internal logic in the relevant description, the transmission and acquisition / reception operations involved in the processor can be understood as processor output and reception, input and other operations, or as transmission and reception operations performed by radio frequency circuits and antennas. This application does not limit them in this regard.

[0055] In a sixth aspect, a computer-readable storage medium is provided that stores program code for execution by a device, the program code including methods for performing any possible implementation of the first or second aspect described above.

[0056] In a seventh aspect, a computer program product containing instructions is provided, which, when run on a computer, causes the computer to perform the method in any possible implementation of the first or second aspect described above.

[0057] Eighthly, a communication system is provided, including the aforementioned terminal equipment and network equipment. Attached Figure Description

[0058] Figure 1 A schematic diagram of a wireless communication system 100 applicable to embodiments of this application is shown.

[0059] Figure 2 A schematic diagram is shown showing how a terminal device uses a wake-up circuit to receive a wake-up signal.

[0060] Figure 3 The waveform diagram of the wake-up signal using OOK modulation is shown.

[0061] Figure 4 A schematic diagram of the transmission of synchronization signals is shown.

[0062] Figure 5 Another schematic diagram of the transmission of synchronization signals is shown.

[0063] Figure 6 A schematic diagram of the SYNC raster is shown.

[0064] Figures 7(a) to 7(c) A schematic diagram of an information transmission method 700 provided in an embodiment of this application is shown.

[0065] Figure 8 A schematic diagram of a first signal provided according to an embodiment of this application is shown.

[0066] Figure 9 Another schematic diagram of a first signal provided according to an embodiment of this application is shown.

[0067] Figure 10A schematic diagram of a synchronization signal provided according to an embodiment of this application is shown.

[0068] Figure 11 Another schematic diagram of the synchronization signal provided according to an embodiment of this application is shown.

[0069] Figure 12 A schematic diagram illustrating public information provided according to embodiments of this application is shown.

[0070] Figure 13 A schematic diagram of the transmission of public information and synchronization signals is shown.

[0071] Figure 14 Another schematic diagram showing the transmission of public information and synchronization signals is presented.

[0072] Figure 15 Another schematic diagram of a first signal provided according to an embodiment of this application is shown.

[0073] Figure 16 This is a schematic diagram of an information transmission method 1600 provided in an embodiment of this application.

[0074] Figure 17 This is a schematic block diagram of a communication device provided in an embodiment of this application.

[0075] Figure 18 This is a schematic block diagram of another communication device provided in the embodiments of this application.

[0076] Figure 19 This is a schematic block diagram of another communication device provided in the embodiments of this application. Detailed Implementation

[0077] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0078] The technical solutions provided in this application can be applied to various communication systems, such as 5th generation (5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, and LTE time division duplex (TDD) systems. The technical solutions provided in this application can also be applied to future communication systems, such as 6th generation mobile communication systems. Furthermore, the technical solutions provided in this application can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), and Internet of Things (IoT) communication systems or other communication systems.

[0079] The terminal device in this application embodiment can also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.

[0080] Terminal devices can be devices that provide voice / data to users, such as handheld devices with wireless connectivity, in-vehicle devices, etc. Currently, examples of terminals include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving vehicles, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, wearable devices, terminal devices in 5G networks, or future public land mobile communication networks. Terminal devices in a network (PLMN), etc., are not limited to this in the embodiments of this application.

[0081] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0082] In this embodiment, the device for implementing the functions of the terminal device can be the terminal device itself, or it can be a device that supports the terminal device in implementing the functions, such as a chip system or a chip. This device can be installed in the terminal device. In this embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices.

[0083] The network device in this application embodiment can be a device for communicating with a terminal device. This network device can also be called an access network device or a wireless access network device, such as a base station. In this application embodiment, the network device can refer to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network. A base station can broadly encompass, or be replaced by, various names including: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master station, auxiliary station, motor slide retainer (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or a combination thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. Base stations can also be mobile switching centers, devices that perform base station functions in D2D, V2X, and M2M communications, network-side devices in 6G networks, and devices that perform base station functions in future communication systems. Base stations can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technologies or device forms used in the network equipment.

[0084] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0085] In some deployments, the network devices mentioned in the embodiments of this application may be devices including CU, or DU, or devices including CU and DU, or devices including control plane CU nodes (central unit-control plane, CU-CP) and user plane CU nodes (central unit-user plane, CU-UP) and DU nodes.

[0086] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located.

[0087] First, combine Figure 1 The network architecture applicable to this application is briefly described below.

[0088] As an example, see Figure 1 , Figure 1 A schematic diagram of a wireless communication system 100 applicable to embodiments of this application is shown. Figure 1 As shown, the wireless communication system 100 may include at least one network device, such as Figure 1 The network device 110 shown, the wireless communication system 100 may also include at least one terminal device, such as Figure 1 The terminal device 120 shown is an example. Both the network device and the terminal device can be configured with multiple antennas, and the network device and the terminal device can communicate using multi-antenna technology.

[0089] When the network device and the terminal device communicate, the network device can manage one or more cells, and a cell can contain an integer number of terminal devices. Optionally, the network device 110 and the terminal device 120 form a single-cell communication system, and without loss of generality, the cell is referred to as cell #1. The network device 110 can be a network device in cell #1, or the network device 110 can serve the terminal devices (such as terminal device 120) in cell #1.

[0090] It should be noted that a residential area can be understood as the area within the wireless signal coverage of network devices.

[0091] It should be understood that Figure 1 This is a simplified illustration for ease of understanding only. The wireless communication system 100 may also include other network devices or other terminal devices. Figure 1 It is not shown in the figure. The embodiments of this application can be applied to any communication scenario in which the sending end device and the receiving end device communicate.

[0092] To facilitate understanding of the embodiments of this application, the terms used in this application will be briefly explained.

[0093] 1. Paging

[0094] According to existing standards, terminal devices can periodically receive paging messages when in an idle or inactive state. As an example, the process of a terminal device receiving a paging message includes the following steps.

[0095] 1) The terminal device can calculate the position of a paging frame (PF) and the paging occasion (PO) in a PF based on its own identifier (ID) (UE ID).

[0096] 2) The terminal equipment monitors the physical downlink control channel (PDCCH) (also known as the paging PDCCH) within the PO. The PDCCH contains downlink control information (DCI) (also known as the paging DCI).

[0097] 3) If a terminal device detects a PDCCH, it receives the Physical Downlink Shared Channel (PDSCH) (also known as a paging PDSCH) at the location scheduled by that PDCCH. The paging PDSCH contains a paging message indicating which terminal devices have been paged. For example, a paging PDSCH can contain up to 32 paging records, each of which can contain a UE ID indicating which UE has been paged. In NR, for instance, the UE ID might be a 5G SAE temporary mobilestation identifier (5G-S-TMIS), 48 bits in length.

[0098] It should be understood that the above-described process for performing paging reception is merely an illustrative example, and relevant standards may be referenced for reference, but this application does not impose any limitations.

[0099] Generally, whether the terminal device is in idle or inactive mode receiving a paging request, or in connected mode receiving data, the same receiving module (or receiver, or receiving circuit) is used. In this application, for ease of description, the module that performs these functions (or executes related steps) is referred to as the main circuit. It is understood that the term "main circuit" is merely a designation for distinction, and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, the main circuit can also be described as a second circuit (or a second module). The following description consistently refers to it as the main circuit.

[0100] Signals received by a terminal device using the main circuit can be referred to as being transmitted on the main link. The main link represents a connection between the terminal device and the network device; it is a logical concept, not a physical entity. It is understood that the term "main link" is merely a designation for distinction, and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, the main link can also be described as a second link.

[0101] When a terminal device uses the main circuit to receive paging signals, power consumption is relatively high. For example, when receiving a paging signal, the terminal device first needs to use the main circuit's receiving module to receive the downlink signal, and then the terminal device also needs to perform blind detection on the PDCCH and decode the received PDSCH, all of which result in significant power consumption. In addition, due to the complexity of the main circuit, its operating baseline power consumption (or static power consumption) is relatively high.

[0102] To reduce the power consumption of terminal devices receiving paging messages, one possible approach is for the terminal device to use a separate low-power circuit to receive a wake-up signal / radio (WUS / WUR). This wake-up signal indicates paging-related information, which may include, for example, whether a terminal device or a group of terminal devices has been paged. This low-power circuit can be implemented using a simple, separate circuit or chip, resulting in low power consumption.

[0103] It should be understood that this low-power circuit may be called a wake-up receiver (WUR), a wake-up circuit, or a low-power circuit, etc., and this application does not limit its naming. In this application, for ease of description, the low-power circuit is referred to as a wake-up circuit. It is understood that the name "wake-up circuit" is only for distinction, and its specific name does not limit the scope of protection of this application. For example, without loss of generality, the wake-up circuit may also be described as a first circuit (or a first module). For ease of explanation, it will be uniformly described as a wake-up circuit below.

[0104] Similarly, the signal received by the terminal device using the wake-up circuit can be referred to as being transmitted on the wake-up link. Here, wake-up represents a connection relationship between the terminal device and the network device; it is a logical concept, not a physical entity. It is understood that the term "wake-up link" is merely a designation for differentiation, and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, a wake-up link can also be described as a first link. It should also be understood that "wake-up signal" is only an example name, and this application does not limit its naming.

[0105] As an example, Figure 2 A schematic diagram is shown showing how a terminal device receives a wake-up signal through a wake-up circuit.

[0106] like Figure 2 As shown, the wake-up signal is detected by the wake-up circuit, and the wake-up signal can carry paging-related indication information.

[0107] When a terminal device uses the wake-up circuit to receive signals, if the terminal device does not detect a wake-up signal associated with itself, it continues to use the wake-up circuit to receive signals, and the main circuit can be in a closed state (or sleep state). If the terminal device detects a wake-up signal associated with itself, it triggers the wake-up of the main circuit, that is, it puts the main circuit into / switches to an on state (or working state, or active state). After the main circuit is turned on, the terminal device can perform the paging process. For example, the terminal device receives a paging PDCCH, and after its corresponding PO detects the paging PDCCH, it receives a paging PDSCH.

[0108] It should be understood that Figure 2 This explanation primarily uses the example of a wake-up signal carrying partial paging-related information (such as part of the UE ID of the paged terminal device, or the device group ID of the paged terminal device) as an example, and is not intended to be limiting. For example, the wake-up signal could also carry all paging-related information (such as the complete UE ID of the paged terminal device). In this case, after the main circuit is turned on, random access can be initiated. It is understood that this is not a limitation. If the wake-up signal carries all paging-related information, after the main circuit is turned on, it can also receive paging-related information.

[0109] As an example, to ensure power efficiency, the wake-up signal can be modulated using on-off key (OOK) modulation, and the corresponding wake-up circuit can use envelope detection to receive the wake-up signal. As an example, Figure 3 The waveform diagram of the wake-up signal using OOK modulation is shown.

[0110] When the wake-up signal uses OOK modulation, each bit (i.e., the encoded bit) can correspond to a symbol. Equivalently, a symbol can also be called a chip, or any other name, without restriction here.

[0111] For example, when a bit is 1, a signal is emitted within that symbol length (i.e., the signal transmission power within that symbol length is not 0); when a bit is 0, no signal is emitted within that symbol length (i.e., the signal transmission power within that symbol length is 0). Figure 3 As shown, Figure 3 The waveform shown can represent four bits of 1010.

[0112] For example, when a bit is 0, a signal is emitted within that symbol length (i.e., the signal transmission power within that symbol length is not 0); when a bit is 1, no signal is emitted within that symbol length (i.e., the signal transmission power within that symbol length is 0). In this case, Figure 3 The waveform shown can represent four bits: 0101.

[0113] 2. First frequency resources and second frequency resources

[0114] The following section uses terminal devices as an example to introduce the first and second frequency resources in several scenarios.

[0115] As a first possible scenario, the terminal device includes a first module and a second module. For example, the power consumption of the first module may be less than that of the second module. The first module, for example, could be... Figure 2 The wake-up circuit in the middle, or it can be the receiving module of the wake-up circuit; the second module, for example, can be Figure 2 The first module can be the main circuit, or it can be the receiving module of the main circuit. In this application, the first module can be replaced by a wake-up circuit (or the first circuit), and the second module can be replaced by the main circuit (or the second circuit). For consistency, the following description will use the first module and the second module.

[0116] In this case, the first frequency resource can represent the frequency resource used by the terminal device to transmit signals through the first module, and the second frequency resource can represent the frequency resource used by the terminal device to transmit signals through the second module.

[0117] As a second possibility, the terminal device can operate on the first link (or the terminal device can transmit signals on the first link) or on the second link (or the terminal device can transmit signals on the second link). That is, the terminal device and the network device can communicate via either the first link or the second link. For example, as mentioned above, the first link can represent the terminal device communicating via, for instance, the second link. Figure 2The link used by the wake-up circuit in the middle to transmit signals, the second link can represent the terminal device through, such as Figure 2 The link used when transmitting signals in the main circuit.

[0118] In this case, the first frequency resource can represent the frequency resource used by the terminal device to transmit signals on the first link, and the second frequency resource can represent the frequency resource used by the terminal device to transmit signals on the second link.

[0119] As a third possible scenario, the terminal device can be in a first state (e.g., a WUR state) and a second state. The first and second states describe different states of the terminal device (e.g., different radio resource control (RRC) states). For example, the power consumption of the terminal device in the first state can be less than the power consumption of the terminal device in the second state. The first state can be, for example, an idle or inactive state, or a WUR state; the second state can be, for example, a connected state, or an idle or inactive state. The first state (e.g., the WUR state) may correspond to the terminal device operating on a first link or to the terminal device using a first module to transmit signals.

[0120] In this case, the first frequency resource can represent the frequency resource used by the terminal device to transmit signals when it is in the first state, and the second frequency resource can represent the frequency resource used by the terminal device to transmit signals when it is in the second state.

[0121] As a fourth possible scenario, the terminal device can be in a first mode (such as WUR mode) and a second mode. The first and second modes describe different ways the terminal device transmits signals. For example, the power consumption of the terminal device transmitting signals in the first mode can be less than the power consumption of the terminal device transmitting signals in the second mode. The first mode (such as WUR mode) may correspond to the terminal device operating on the first link or to the terminal device using the first module to transmit signals.

[0122] In this case, the first frequency resource can represent the frequency resource used by the terminal device to transmit signals when it is in the first mode, and the second frequency resource can represent the frequency resource used by the terminal device to transmit signals when it is in the second mode.

[0123] Based on the above description, using the first frequency resource to transmit signals can be replaced by any of the following: using the first module to transmit signals, transmitting signals on the first link, transmitting signals in the first state, or transmitting signals in the first mode; using the second frequency resource to transmit signals can be replaced by any of the following: using the second module to transmit signals, transmitting signals on the second link, transmitting signals in the second state, or transmitting signals in the second mode. For consistency, the following explanation will primarily use the first and second frequency resources as examples.

[0124] The above mainly described the first and second frequency resources from the perspective of the equipment. The following description is from the perspective of the signal. Assume that the signal transmitted using the first frequency resource is the first signal, and the signal transmitted using the second frequency resource is the second signal.

[0125] 1) The modulation methods of the first signal and the second signal are different.

[0126] For example, the modulation scheme of the first signal is OOK, and the modulation scheme of the second signal is orthogonal frequency division multiplexing (OFDM) modulation or discrete fourier transformation-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) modulation.

[0127] 2) The modulation methods of the first and second signals are different.

[0128] For example, the waveform of the first signal is OOK, and the waveform of the second signal is an OFDM waveform or a DFT-s-OFDM waveform.

[0129] 3) The first signal and the second signal are different.

[0130] For example, the first signal may include one or more of the following: synchronization signal, common information, and paging information. The paging information includes information about one or more terminal devices that need to receive the paging. The specific information included in the first signal can be predefined by a standard or configured by the network side; there is no restriction. "Network-side configuration" refers to configuration performed by the network side through the second link. For example, the terminal device obtains the configuration information from the first link on the second link before switching to operation on the first link.

[0131] For example, the second signal can be a signal distinct from the first signal. The second signal can represent various downlink signals or channels in the NR signal (i.e., the existing NR signal). As examples, the second signal includes any one or more of the following: synchronization signal block (SSB), PDCCH, PDSCH, channel state information reference signal (CSI-RS), phase tracking reference signal (PTRS), positioning reference signal (PRS), and demodulation reference signal (DMRS). The second signal can also represent various uplink signals or channels in the NR signal. As examples, the second signal includes any one or more of the following: DMRS, physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH), and sounding reference signal (SRS).

[0132] For example, the second signal may carry one or more of the following information: paging early indication (PEI), paging DCI, and paging message (i.e., paging PDCCH and paging PDSCH). PEI can be used to indicate whether a paging has been sent to its associated PO.

[0133] For example, the second signal can represent signals during the random access process of the terminal device. For instance, the second signal might include a random access preamble.

[0134] It is understood that the above description mainly uses terminal equipment as an example to introduce the first frequency resource and the second frequency resource. It is also understood that the above description applies to other communication equipment (such as network equipment). For the sake of brevity, it will not be elaborated here.

[0135] 3. Synchronization signal (SYNC)

[0136] When a terminal device receives a wake-up signal on the wake-up link, it can also receive a synchronization signal to ensure correct reception of the wake-up signal, allowing it to perform time synchronization based on the synchronization signal. For example, a terminal device can receive a synchronization signal on the wake-up link.

[0137] As an example, Figure 4 A schematic diagram of the transmission of synchronization signals is shown.

[0138] like Figure 4 As shown, the synchronization signal is transmitted along with the paging information. For example, each time a network device sends a wake-up signal carrying paging information, the wake-up signal includes a synchronization signal, and the synchronization signal is located at the beginning of the wake-up signal (such as at the start position, or before the paging information), followed by the paging information.

[0139] As an example, Figure 5 Another schematic diagram of the transmission of synchronization signals is shown.

[0140] like Figure 5 As shown, the synchronization signal does not need to be transmitted along with the path; the synchronization signal and the wake-up signal carrying paging information can be transmitted independently. For example, network devices can periodically send synchronization signals, which may not necessarily be followed by paging information.

[0141] It is understood that the above two methods of transmitting synchronization signals are illustrative examples, and this application does not limit the methods of transmitting synchronization signals.

[0142] 4. Area Identification Information

[0143] According to existing standards, a terminal device can receive paging messages when it is in idle or inactive. However, a UE in idle or inactive mode has not established a connection with the network, and the network cannot know the UE's exact location. For example, when a UE moves from one cell (e.g., cell #1) to another cell (e.g., cell #2), if the network sends a paging message within cell #1, it may not be able to page the UE. To enable the network to page the UE, it can send paging messages for that UE through various base stations within an area. The UE also needs to know its location to receive certain signals or to notify the network in some way after a location change.

[0144] In this embodiment of the application, the area identification information is used to represent information that can identify an area, that is, the receiving end can obtain information about the area based on the area identification information. As an example, the area identification information may include one or more of the following: tracking area (TA) identification information, RAN area (RAN) area identification information, and cell identification information.

[0145] 1) Tracking Area: When the UE is in idle mode, the paging received by the UE is core network (CN) paging. The network side can send paging messages for the UE through various base stations within the TA where the UE is located. The base station can broadcast the TA where the current base station is located in the system information. For example, the base station can indicate the TA where the current base station is located through the TrackingAreaCode in the system information. The TrackingAreaCode is 24 bits long.

[0146] For example, when a UE in idle state moves from one cell (e.g., cell #1) to another cell (e.g., cell #2), it can receive system information from cell #2. The UE determines whether it is still in its previous Tracking Area Code (TA) by reading the Tracking Area Code in this system information. If the UE determines that it has entered a new TA, it can initiate a tracking area update process. By initiating a tracking area update process, the UE can inform the core network which new TA it is in. The tracking area update process can also be called the mobility registration update process.

[0147] 2) RAN Area: When the UE is in inactive, the paging received by the UE is RAN paging. The network side can send paging messages for the UE through various base stations within the RAN area where the UE is located. The base station can broadcast the RAN area where the current base station is located in the system information. For example, the base station can indicate this through the RAN-AreaCode in the system information, such as an RAN-AreaCode with a length of 8 bits.

[0148] For example, when a UE in inactive state moves from one cell (e.g., cell #1) to another cell (e.g., cell #2), it can receive system information from cell #2. The UE determines whether it is still in the previous RAN area by reading the RAN-AreaCode in the system information. If the UE determines that it has entered a new RAN area, it can initiate a RAN-based notification area update (RNAU) process. By initiating the RAN area update process, the UE can inform the network side which new RAN area it is in.

[0149] 3) Cell Identifier: The base station can broadcast the cell identifier through system information, such as through a cell identifier (CellIdentity), which is 36 bits long. For example, when a UE moves from cell #1 to cell #2, it can receive system information from cell #2; the UE can determine that it has entered the new cell #2 by reading the CellIdentity in the system information.

[0150] 5. Warning-related information

[0151] Warning-related information, such as information related to warning information.

[0152] In this embodiment of the application, as an example, the warning-related information can be warning information itself, or it can be warning information receiving instruction information. These will be described separately below.

[0153] 1) Early warning information

[0154] Warning information, also known as alert information or emergency information, may include, but is not limited to, earthquake and tsunami warning systems (ETWS) information and commercial mobile alert systems (CMAS) information.

[0155] Warning information can include first warning information and second warning information. The first and second warning information have different priorities; for example, the first warning information has a higher priority, and the second warning information has a lower priority. The following example uses ETWS for illustration.

[0156] ETWS can be divided into two parts: primary notification information (an example of the first warning message) and secondary notification information (an example of the second warning message). Among them, primary notification information has a higher priority than secondary notification information.

[0157] Primary notification messages are generally used to indicate urgent information with a small data size, such as emergency information related to earthquakes or tsunamis. Primary notification messages may indicate one or more of the following: the type of information (e.g., earthquake or tsunami) and how the terminal should notify the user. According to TS22.168 and TS22.268, the process from the operator receiving the primary notification message to transmitting it to the UE must be completed within 4 seconds, and the data size is approximately a few bytes.

[0158] Secondary notification messages are generally used to indicate less urgent information and involve larger amounts of data. Examples of secondary notification messages include: the purpose of the message (e.g., for testing, training), a safe location, how to get help, and the time of food distribution.

[0159] The details of the early warning information will not be repeated below.

[0160] 2) Warning information reception instruction information

[0161] Warning information reception indication information, or warning information reception notification information, can be used to indicate (or notify) whether to receive (or read) warning information. For simplicity, the warning information reception indication information will be referred to as information #1 below.

[0162] Generally, warning information is carried within system information. Considering that the UE does not frequently read system information, it's possible to instruct (or notify) the UE whether to read the warning information in some way. One possible method is for the network device to send information #1, which instructs the UE whether to read the system information corresponding to the warning information. For example, the network device sends a paging DCI, which includes information #1, instructing the UE whether to read the system information corresponding to ETWS / CMAS.

[0163] This application does not restrict the implementation method of information #1.

[0164] One possible implementation is that information #1 is implemented using one or more bits. For example, suppose one bit is used to indicate whether the receiver needs to receive the warning information. If this bit is set to "1", it means the receiver needs to receive the warning information; if this bit is set to "0", it means the receiver does not need to receive the warning information. It should be understood that the above is only an illustrative example and is not intended to be limiting. For example, information #1 can also be used to trigger the receiver to receive the warning information. For instance, if the terminal device receives information #1, then in response to information #1, the terminal device receives the warning information.

[0165] It should be noted that the embodiments of this application are mainly illustrated by taking information #1 indicating the receipt of warning information as an example. It can be understood that information #1 can also indicate not to receive warning information.

[0166] 6. System information change instruction information

[0167] System information change indication information, also known as system information change notification information, can be used to indicate (or notify) whether system information has been received (or read), or to indicate (or notify) whether system information has changed. For simplicity, the system information change indication information will be referred to as information #2 below.

[0168] Generally, cell system information is not updated very frequently. Once the UE has read the cell's system information, it will not read it frequently. If the cell's system information is updated, the UE needs to read the updated system information; otherwise, errors may occur. For example, if the cell updates its paging-related configuration, the UE will not be able to receive paging correctly if it does not read the updated system information. As another example, if the cell updates its random access-related configuration, the UE will not be able to successfully initiate random access if it does not read the updated system information.

[0169] To ensure that the UE can promptly read the updated system information, a method can be used to instruct (or notify) the UE whether to reread the system information. One possible method is for the network device to send information #2, which instructs the UE whether to reread the system information. For example, the network device sends a paging DCI containing information #2, which instructs the UE whether to reread the system information.

[0170] This application does not restrict the implementation method of information #2.

[0171] One possible implementation is that information #2 is implemented using one or more bits. For example, suppose one bit is used to indicate whether the system information has changed. If this bit is set to "1", it means that the system information has changed and the terminal device needs to read the system information; if this bit is set to "0", it means that the system information has not changed and the terminal device does not need to read the system information. It should be understood that the above is only an illustrative example and is not intended to be limiting.

[0172] It should be noted that the embodiments of this application are mainly illustrated by taking information #2 indicating that the system information has changed. It can be understood that information #2 can also indicate that the system information is not received or that the system information has not changed.

[0173] 7. Absolute Radio Frequency Channel Number (ARFCN)

[0174] ARFCN can be used to map frequency locations to an index, thus facilitating the indication of frequency domain locations.

[0175] In LTE systems, ARFCN can also be called EARFCN. In LTE systems, the frequency spacing between adjacent ARFCNs can be as low as 100kHz.

[0176] In NR systems, ARFCN can also be called NR ARFCN. For NR, the frequency position can satisfy the following formula: F REF =F REF-Offs +ΔF Global (N REF –N REF-Offs ). Among them, F REF Indicates the frequency position, ΔF Global N represents the frequency interval between adjacent ARFCNs. REF This indicates the frequency position corresponding to the ARFCN index, F. REF-Offs It can represent the frequency offset value, N REF-Offs This can represent the index value offset. It's understandable that regarding F... REF-Offs and N REF-Offs The specific definitions are not limited in this application; they are all used to calculate F. REF As an example, Table 1 shows the possible values ​​for each parameter. From Table 1, it can be seen that the frequency interval of ARFCN can be 5 kHz or 15 kHz. It can be understood that the above is used to calculate F... REF The formula is merely illustrative and is not intended to limit the scope of this application. Any method that can calculate F... REF All methods (such as variations of the above formulas) are applicable to this application.

[0177] Table 1

[0178]

[0179] 8. Channel raster

[0180] A channel raster represents the location of a carrier center (i.e., a DC subcarrier) and can be used to restrict the location of carrier deployment. A channel raster can be represented by an ARFCN.

[0181] As an example, in LTE, the channel raster spacing can be consistently 100kHz. Furthermore, in LTE, the channel raster can be used for base station network searching, meaning the UE can attempt to search for LTE cells in 100kHz increments. As an example, in NR, the channel raster spacing is mostly 100kHz, with some frequency bands using 15kHz or 30kHz.

[0182] 9. Synchronization raster (SYNC raster)

[0183] The SYNC raster can be used to determine the location of the center (i.e., DC subcarrier) of the synchronization signal block (SSB) and can also be used to accelerate network search. For example, in some systems, such as NR systems, where cell bandwidth is large, the introduction of the SYNC raster can speed up network search. In other systems, such as NR systems, the channel raster is not used for network search but is used to define the location of the carrier center.

[0184] As an example, Figure 6 A schematic diagram of the SYNC raster is shown. Figure 6 As shown, there are three SYNC rasters every 1200kHz, and the interval between two adjacent SYNC rasters is 100kHz.

[0185] It is understood that the above descriptions of frequency location are primarily in Hz, and this is not a limitation; any unit that can represent frequency location is applicable to this application. For example, a resource block (RB) represents a frequency resource block within a cell. An RB is primarily calculated as a relative frequency location relative to a reference point within the cell. An RB can contain 12 resource elements (REs), and each RE corresponds to one subcarrier.

[0186] The terminology used in this application has been briefly explained above, and will not be repeated in the following embodiments.

[0187] It is understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0188] The information transmission method provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings. The embodiments provided in this application can be applied to the above. Figure 1 The network architecture shown is not limited.

[0189] Figures 7(a) to 7(c) This is a schematic diagram of an information transmission method 700 provided in an embodiment of this application. Method 700 may include the following steps.

[0190] S710: The terminal device uses the first frequency resource to receive public information from the network device.

[0191] Accordingly, network devices use the first frequency resources to transmit public information.

[0192] Taking a terminal device as an example, the terminal device uses the first frequency resource to receive public information from the network device, which can be replaced by any of the following: the terminal device receives public information from the network device through the first module, the terminal device receives public information from the network device on the first link, the terminal device receives public information from the network device when it is in the first state, and the terminal device receives public information from the network device when it is in the first mode.

[0193] Public information can be understood as information that is not specifically sent to a particular terminal device or a group of terminal devices in the cell, such as system information block (SIB) information in a legacy cell.

[0194] Optionally, public information includes one or more of the following: warning information or information #1 (i.e., warning information reception instruction information), area identification information, and information #2 (i.e., system information change instruction information). For specific explanations of each type of information, please refer to the preceding terminology explanation; further details will not be provided here.

[0195] After receiving public information, the terminal device can perform different operations based on different types of public information. The following examples illustrate this with different types of public information.

[0196] Example 1: Public information is regional identification information.

[0197] In this example, as shown in Figure 7(a), method 700 further includes S721, whereby the terminal device uses the second frequency resources to perform a region update procedure or receive system information based on the region identification information.

[0198] The terminal device's use of the second frequency resource to perform the area update procedure or receive system information can be replaced by any of the following: the terminal device performs the area update procedure or receives system information through the second module; the terminal device performs the area update procedure or receives system information on the second link; the terminal device performs the area update procedure or receives system information when it is in the second state; or the terminal device performs the area update procedure or receives system information when it is in the second mode. The area update procedure can, for example, refer to existing update procedures and is not limited thereto.

[0199] As mentioned earlier, area identification information is used to represent information that can identify an area; that is, terminal devices can obtain information about an area based on the area identification information. For example, area identification information may include one or more of the following: tracking area identifier, RAN area identifier, and cell identifier.

[0200] The following section introduces several scenarios based on the different contents included in the area identification information.

[0201] In the first possible scenario, the area identification information includes the tracking area identifier.

[0202] The tracking area identifier can be, for example, the TrackingAreaCode mentioned above (i.e., information of the same length as defined in existing standards); or it can be a shorter identifier configured by the network (i.e., other forms of information with similar functions can be configured by the network), without restriction.

[0203] In this case, optionally, S721, based on the area identification information, the terminal device uses the second frequency resources to perform an area update procedure or receive system information, including: if the terminal device determines that the tracking area of ​​the terminal device has been updated according to the tracking area identifier, the terminal device uses the second frequency resources to perform a tracking area update procedure.

[0204] The tracking area of ​​a terminal device refers to the tracking area where the terminal device is located, or the tracking area where the network device providing services to the terminal device is located.

[0205] For example, if a terminal device determines that its tracking area has been updated based on the tracking area identifier, it can activate the main circuit to execute the tracking area update process. Therefore, the terminal device receives the tracking area identifier via the wake-up circuit. If the terminal device finds itself in a new tracking area, it can activate the main circuit to execute the tracking area update process, thereby informing the network side of its new tracking area and preventing the network side from being unable to page the terminal device.

[0206] The second possibility is that the area identification information includes the RAN area identifier.

[0207] The RAN area identifier can be, for example, the RAN-AreaCode mentioned above (i.e., information that is the same as that defined in the existing standard and has the same length); or it can be a shorter identifier configured by the network (i.e., other forms of information with similar functions that can be configured by the network), without restriction.

[0208] In this case, optionally, S721, based on the area identification information, the terminal device uses the second frequency resources to perform an area update procedure or receive system information, including: if the terminal device determines that the RAN area identification of the terminal device has been updated according to the RAN area identification, the terminal device uses the second frequency resources to perform a RAN area identification update procedure.

[0209] The RAN region of the terminal device refers to the RAN region where the terminal device is located, or the RAN region where the network device providing services to the terminal device is located.

[0210] For example, if a terminal device determines that its RAN area has been updated based on the RAN area identifier, the terminal device can activate the main circuit and execute the RAN area update process through the main circuit. Therefore, the terminal device receives the RAN area identifier through the wake-up circuit. If the terminal device finds that it has entered a new RAN area, it can activate the main circuit to execute the RAN area update process, thereby informing the network side of which new RAN area it is in, and preventing the network side from being unable to page the terminal device.

[0211] The third possibility is that the area identification information includes the community identification.

[0212] The cell identifier can be, for example, the CellIdentity mentioned above (i.e., information that is the same as that defined in the existing standard and has the same length); or it can be a shorter identifier configured by the network (i.e., other forms of information with similar functions that can be configured by the network), without restriction.

[0213] In this case, optionally, S721, based on the area identification information, the terminal device uses the second frequency resources to perform an area update procedure or receive system information, including: if the terminal device determines that the cell of the terminal device has been updated according to the cell identifier, the terminal device uses the second frequency resources to receive system information of the cell indicated by the cell identifier (i.e., the cell where the terminal device is currently located).

[0214] The term "cell" in this context refers to either the cell where the terminal device is located or the cell that provides services to the terminal device.

[0215] For example, if a terminal device determines that its cell has been updated based on the cell identifier, it can activate the main circuit to receive the updated cell's system information. Therefore, the terminal device receives the cell identifier via the wake-up circuit. If the terminal device discovers it has entered a new cell, it can activate the main circuit to receive the new cell's system information, ensuring timely and accurate system information and reducing access latency after being paged. For instance, if the terminal device does not obtain system information promptly, upon receiving a page via the wake-up circuit, it needs to first receive the new cell's system information and know the current cell's paging configuration before receiving information from the main circuit (this information is referred to as the first information for distinction); or it needs to know the current cell's random access configuration before initiating random access. The first information refers to information related to paging, which may include one or more of the following: paging DCI (which allows the terminal device to receive paging messages at the location scheduled by the paging DCI), paging messages (such as paging PDCCH and paging PDSCH), and PEI (which can be used to indicate whether a paging message has been sent in its associated PO). If the terminal device can obtain system information in advance, it can directly receive the first message or initiate random access after receiving the paging through the wake-up circuit, thereby reducing latency.

[0216] Example 2: The public information is information #2. Information #2 is used to indicate that the system information (for distinction, it is referred to as the target system information) has changed.

[0217] In this example, as shown in Figure 7(b), method 700 further includes S722, whereby the terminal device uses a second frequency to receive target system information from the network device.

[0218] The terminal device receiving target system information from the network device using the second frequency resource can be replaced by any of the following: the terminal device receiving target system information from the network device through the second module, the terminal device receiving target system information from the network device on the second link, the terminal device receiving target system information from the network device when in the second state, or the terminal device receiving target system information from the network device when in the second mode.

[0219] For example, if the terminal device receives information #2, which indicates a change in system information, the terminal device can activate the main circuit to receive the target system information. Therefore, the terminal device receives information #2 through the wake-up circuit. If the terminal device detects a change in system information, it can activate the main circuit to receive the updated system information (i.e., the target system information), thus enabling the terminal device to receive the correct system information in a timely manner and reducing access latency after the UE is paged.

[0220] Regarding information about the target system, several possible approaches are described below.

[0221] The first possible approach is that the target system information is either the Master Information Block (MIB) or any SIB. For example, if the MIB or any SIB transmitted on the second link changes, the network devices will all send information #2 on the first link, causing the terminal devices to activate the main circuit to receive the updated system information.

[0222] The second possible approach is to use SIB 1 as the target system information. Considering that changes to SIB1 might affect the operation of the second link—for example, changes to paging or random access configurations could affect the terminal device's access latency—changes to other system information, such as changes to neighbor cell measurement information, might not affect the UE's operation on the WUR link. Therefore, in the event of a change to SIB1, the main circuit can be enabled to receive the updated system information.

[0223] The third possible approach is that the target system information is MIB or SIB 1. Besides SIB 1, changes to the MIB can also affect the operation of the second link. For example, the MIB includes parameters for control resource set (CORESET) 0, which can affect the terminal device's reception of downlink control information. Therefore, when the MIB or SIB 1 transmitted on the second link changes, the network device will send information #2 on the first link, instructing the terminal device to enable the main circuit to receive the updated MIB or SIB 1.

[0224] The fourth possible approach involves target system information that includes specific details (such as certain information from SIB1). For example, target system information might include one or more of the following: common configuration information of the serving cell, configuration information of the terminal device's timers or counters, configuration information of the unified access control (UAC), and configuration information of the first link. Changes to this information may affect the access latency of the terminal device on the second link or affect the operation of the terminal device on the first link. Therefore, it is necessary to promptly notify the terminal device to receive the updated system information after the update.

[0225] The public configuration information of the serving cell may include, but is not limited to: downlink (DL) configuration information, uplink (UL) configuration information, and time division duplex (TDD) frame structure configuration information.

[0226] The configuration information of the terminal device's timer or counter includes, for example, the duration of timer T300, which is used to control the success or failure of the connection establishment process.

[0227] The first link configuration information includes, for example, the frequency domain location of the first link, the signal format of the first link, or the configuration information of the synchronization signal on the first link.

[0228] It is understood that the above is an illustrative description and this application is not limited thereto. For example, when system information or system information blocks change, the terminal device may use a second frequency to receive updated system information or system information blocks; or, when certain specific system information or certain specific system information blocks change, the terminal device may use a second frequency to receive updated system information.

[0229] Example 3: The public information is information #1, which can be used to indicate the receipt of warning information.

[0230] In this example, as shown in Figure 7(c), method 700 further includes S723, whereby the terminal device receives warning information from the network device after receiving information #1.

[0231] Taking the first link as an example, when a terminal device uses discontinuous reception on the first link, it may only receive signals for a portion of the time. For instance, within a 10-second period, a terminal device may only receive signals within its corresponding 50ms time window, and the positions of these time windows may differ for different terminal devices. In this case, to ensure that each terminal device receives the warning information, the network device may need to send warning information frequently, for example, once within each time window. This can lead to signal congestion on the first link, meaning that resources are occupied by warning information, leaving no additional resources to send paging information. To solve this problem, warning information can be sent only at certain time points, while simultaneously sending information #1 more frequently. When a terminal device receives information #1, it can begin continuously receiving warning information on the first link. Therefore, by transmitting information #1 on the first link, not only can the latency of the terminal device receiving the warning information be reduced, but the signal congestion problem caused by the first link being occupied by warning information can also be resolved.

[0232] For example, after receiving information #1, the terminal device receives warning information from the network device, including receiving warning information from the network device within a preset time period after receiving information #1. The preset time period can be configured by the network device or predefined, and is not limited. The preset time period can also be implemented using a timer. For example, after receiving information #1, the terminal device starts a timer, and within the preset duration, the terminal device receives warning information from the network device. As another example, some time after receiving information #1, the terminal device starts a timer, and within the preset duration, the terminal device receives warning information from the network device.

[0233] For example, after receiving information #1, the terminal device receives warning information from the network device, including continuously receiving warning information from the network device after receiving information #1. In other words, after receiving information #1, the terminal device can continuously attempt to receive warning information from the network device until it receives a warning message.

[0234] The following describes several possible scenarios in which a terminal device receives a warning message from a network device after receiving message #1.

[0235] One possible scenario is that after receiving information #1, the terminal device receives the warning information from the network device. This could include the terminal device using a first frequency resource to receive the warning information from the network device. For example, if the terminal device receives information #1 via a wake-up circuit, and information #1 indicates the need to receive warning information, then the terminal device can receive the warning information via the wake-up circuit. Therefore, the latency of the terminal device receiving the warning information can be reduced.

[0236] Another possible scenario is that after receiving information #1, the terminal device receives warning information from the network device. This could include the terminal device using a second frequency resource to receive the warning information from the network device after receiving information #1. For example, if the terminal device receives information #1 via a wake-up circuit, and information #1 indicates the need to receive warning information, then the terminal device can activate the main circuit to receive the warning information.

[0237] Another possible scenario is that after receiving information #1, the terminal device receives warning information from the network device. This could include: the terminal device using a first frequency resource to receive the first warning information from the network device, and / or using a second frequency resource to receive the second warning information from the network device. As mentioned earlier, the warning information can include both the first and second warning information. The first and second warning information have different priorities; assuming the first warning information has a higher priority and the second warning information has a lower priority. For example, if the terminal device receives information #1 through a wake-up circuit, and information #1 indicates the receipt of the first warning information, then the terminal device can receive the first warning information through the wake-up circuit; if information #1 indicates the receipt of the second warning information, then the terminal device can enable the main circuit to receive the second warning information.

[0238] In any of the above situations, taking the terminal device using the first frequency resource to receive the warning information from the network device as an example, the terminal device using the first frequency resource to receive the warning information from the network device can be replaced by any of the following: the terminal device receives the warning information from the network device through the first module, the terminal device receives the warning information from the network device on the first link, the terminal device receives the warning information from the network device when it is in the first state, and the terminal device receives the warning information from the network device when it is in the first mode.

[0239] Example 4: Public information is warning information.

[0240] In one possible scenario, the warning information includes a first warning and a second warning. In this case, after receiving the warning information, the terminal device can directly apply it. For example, the terminal device can notify the user through a pop-up window, vibration, SMS, or other means.

[0241] In another possible scenario, the warning information includes a first warning message. In this case, method 700 may further include: the terminal device using a second frequency resource to receive a second warning message from the network device. The terminal device using the second frequency resource to receive the second warning message from the network device can be replaced by any of the following: the terminal device receives the second warning message from the network device through a second module; the terminal device receives the second warning message from the network device on a second link; the terminal device receives the second warning message from the network device when it is in a second state; or the terminal device receives the second warning message from the network device when it is in a second mode. Taking the first link and the second link as examples, the terminal device may need a certain amount of time (e.g., 1s to 2s) to switch from the first link to the second link. The first warning message has high latency requirements (e.g., primary notification must be completed within 4s), therefore sending the first warning message on the first link helps reduce warning latency.

[0242] It is understood that the above description uses the first and second warning information as examples, and this application is not limited to these. For example, the warning information may also include two or more warning information with different priorities.

[0243] The preceding sections described the different operations performed by terminal devices after receiving public information, using various types of public information as examples. Below, without loss of generality, we will use public information as an example to introduce several possible schemes for transmitting public information.

[0244] Option 1: Public information and paging information are carried in the same signal.

[0245] For example, in S710, the terminal device uses a first frequency resource to receive public information from the network device, including: the terminal device uses the first frequency resource to receive a first signal from the network device, the first signal including public information and paging information.

[0246] The position of public information and paging information in the first signal is not restricted; for example, in the first signal, public information may precede paging information.

[0247] As an example, Figure 8 A schematic diagram of a first signal provided according to an embodiment of this application is shown. Figure 8 As shown, the first signal includes common information and paging information. The common information can be located at the beginning of the first signal, and the paging information can be located after the common information. Optionally, the first signal also includes a cyclic redundancy check (CRC), and the CRC can be located at the end.

[0248] Optionally, the first signal may also include a synchronization signal. The synchronization signal may, for example, be located at the beginning of the first signal.

[0249] As an example, Figure 9 Another schematic diagram of a first signal provided according to an embodiment of this application is shown. (See attached diagram.) Figure 9 As shown, the first signal includes public information, paging information, and a synchronization signal, with the synchronization signal located at the beginning of the first signal. Optionally, the first signal may also include a CRC, and the CRC may be located at the end of the first signal.

[0250] Option 2: Public information is carried in the synchronization signal.

[0251] In S710, the terminal device uses a first frequency resource to receive public information from the network device, including: the terminal device uses the first frequency resource to receive a synchronization signal from the network device, the synchronization signal including public information.

[0252] As an example, Figure 10 A schematic diagram of a synchronization signal provided according to an embodiment of this application is shown. Figure 10 As shown, the synchronization signal includes a synchronization signal sequence and common information, and the synchronization signal sequence can be located at the beginning of the synchronization signal.

[0253] Optionally, the synchronization signal is transmitted periodically.

[0254] In this embodiment, the periodic transmission of the synchronization signal indicates that the network device can periodically send the synchronization signal. For the terminal device, it can receive the synchronization signal periodically or on demand; there is no limitation. For example, the network device sends the synchronization signal at a period T1, and the terminal device can receive the synchronization signal every one or more T1 intervals, or receive the synchronization signal on demand.

[0255] As an example, Figure 11 Another schematic diagram of the synchronization signal provided according to an embodiment of this application is shown. For example... Figure 11 As shown, network devices periodically send synchronization signals, which include a synchronization signal sequence and common information. The synchronization signal sequence can be located at the beginning of the synchronization signal.

[0256] Option 3: Periodic transmission of public information.

[0257] In this embodiment, the periodic transmission of public information means that the network device can periodically send public information. For the terminal device, it can receive public information periodically or on demand; there is no limitation. For example, the network device sends public information at periodic intervals T2, and the terminal device can receive public information every one or more T2 intervals, or receive public information on demand.

[0258] As an example, Figure 12 A schematic diagram illustrating public information provided according to embodiments of this application is shown. For example... Figure 12 As shown, network devices periodically send public information, and terminal devices can periodically receive public information, or they can receive public information on demand.

[0259] The period for sending public information, i.e. the period during which public information is sent, can be configured by network devices or predefined (such as standard predefined), and is not restricted.

[0260] Optionally, different public information may have different timeframes.

[0261] Assume that public information includes a first category and a second category, that the first and second categories of public information are different, and that the periods for the first and second categories of public information are different.

[0262] This approach allows for the design of reasonable timeframes based on the actual needs of public information (such as its priority or the amount of resources required to transmit it), and also improves resource utilization.

[0263] For example, if the priority of Category 1 public information is higher than that of Category 2 public information, then the cycle time of Category 1 public information can be shorter than that of Category 2 public information. Category 1 public information may include, for example, warning information or information #1, information #2, while Category 2 information may include, for example, area identification information.

[0264] It is understood that the above is an illustrative example, and this application is not limited thereto. For example, if the resources used to transmit the first type of public information are less than the resources used to transmit the second type of public information, then the period of the first type of public information can be less than the period of the second type of public information. As another example, the periods of the public information can be the same.

[0265] Optionally, the synchronization signal is transmitted periodically, and the period of the public information and the period of the synchronization signal can be correlated.

[0266] In this case, for the terminal device, the period of the public information can be determined based on the period of the determined synchronization signal and the correlation between the period of the synchronization signal and the period of the public information; or, the period of the synchronization signal can be determined based on the period of the determined public information and the correlation between the period of the synchronization signal and the period of the public information.

[0267] As an example, after receiving the synchronization signal, the terminal device uses the first frequency resource to receive public information from the network device after a preset duration, where the preset duration is greater than or equal to 0. The preset duration can be configured by the network device or predefined (such as a standard predefined duration), and is not limited thereto.

[0268] One possible scenario is that the period of the synchronization signal and the period of the common information are the same. Therefore, the common information can always appear after the synchronization signal. When the common information is close to the synchronization signal, the decoding performance of the common information can be improved, thus enhancing the reliability of its transmission.

[0269] For example, after a preset time interval following each reception of a synchronization signal, the terminal device uses the first frequency resource to receive public information from the network device.

[0270] As an example, Figure 13 A schematic diagram illustrating the transmission of public information and synchronization signals is shown. Figure 13 As shown, synchronization signals and common information can be carried in different signals. The period of the synchronization signal is the same as the period of the common information, and the terminal device receives the common information after receiving the synchronization signal each time.

[0271] Another possible scenario is that the period of the synchronization signal is different from the period of the public information.

[0272] For example, after a preset time interval following every X synchronization signals received, the terminal device uses the first frequency resource to receive public information from the network device, where X is an integer greater than or equal to 1. In other words, the period of the public information is an integer multiple of the period of the synchronization signals.

[0273] As an example, Figure 14 Another schematic diagram illustrating the transmission of public information and synchronization signals is shown. (For example...) Figure 14 As shown, synchronization signals and common information can be carried in different signals. The periods of the synchronization signals and the common information are different, and the terminal device receives the common information once for every two synchronization signals received. Figure 14 For example, the period of public information can be twice the period of the synchronization signal.

[0274] Another possible scenario is that the period of the synchronization signal is the same as the period of the first type of public information, but different from the period of the second type of public information.

[0275] For example, after a preset time interval following each reception of a synchronization signal, the terminal device uses the first frequency resource to receive the first type of public information from the network device. After a preset time interval following each reception of Y synchronization signals, the terminal device uses the first frequency resource to receive the second type of public information from the network device, where Y is an integer greater than or equal to 1.

[0276] It is understood that the above is an illustrative example and this application is not limited thereto. For example, the period of the synchronization signal and the period of the public information may not be related.

[0277] Option 4: Public information is indicated by a separate signal.

[0278] Based on Scheme 4, network devices can use separate signals to indicate public information. For example, network devices can use separate signals to indicate public information that is sent infrequently and has relatively high overhead.

[0279] For example, in S710, the terminal device uses a first frequency resource to receive public information from the network device, including: the terminal device uses the first frequency resource to receive a first signal from the network device, the first signal including public information.

[0280] As an example, Figure 15 Another schematic diagram of the first signal provided according to an embodiment of this application is shown. For example... Figure 15 As shown, the first signal includes common information. Optionally, the first signal also includes a CRC, and the CRC can be located at the end.

[0281] Optionally, the first signal may also include a synchronization signal. The synchronization signal may be located at the beginning of the first signal.

[0282] Optionally, the first signal may also include information #3, which may be used to indicate that the current first signal carries public information.

[0283] Option 4 can be used, for example, in scenarios where synchronization signals are transmitted periodically. For instance, multiple first signals can be transmitted between two synchronization signals, and these first signals can be used, for example, to indicate common information.

[0284] It is understood that the above-mentioned solutions are illustrative examples and this application is not limited thereto.

[0285] Furthermore, any of the above-mentioned schemes can be used to transmit public information, or different schemes can be selected depending on the type of public information. For example, if the public information is information #1 or information #2, scheme 2 can be used for transmission; if the public information is area identification information, scheme 3 can be used. As another example, for public information that is sent frequently and has relatively low overhead, scheme 1 or scheme 3 can be used for transmission. And as yet another example, for public information that is sent infrequently and has relatively high overhead, scheme 4 can be used for transmission.

[0286] The above mainly introduced the relevant solutions regarding public information. It can be understood that which public information is transmitted on the first link can be predefined by the standard or configured by the network side. For example, in the case of network configuration, the network can be configured to indicate tracking area information, information #1, and information #2 on the first link; it can also be configured to indicate RAN area information, information #1, and information #2 on the first link, and so on.

[0287] The following describes the relevant schemes for determining the first frequency resource. The schemes described below can be used alone or in combination with the schemes mentioned above, without restriction.

[0288] Figure 16 This is a schematic diagram of an information transmission method 1600 provided in an embodiment of this application. Method 1600 may include the following steps.

[0289] S1610, the terminal device uses the second frequency resource to receive the configuration information of the first frequency resource.

[0290] Accordingly, the network device uses the second frequency resource to send the configuration information of the first frequency resource.

[0291] For a description of the first and second frequency resources, please refer to the previous terminology explanation section; it will not be repeated here.

[0292] Taking a terminal device as an example, the terminal device receiving configuration information of the first frequency resource using the second frequency resource can be replaced by any of the following: the terminal device receives configuration information of the first frequency resource through the second module, the terminal device receives configuration information of the first frequency resource on the second link, the terminal device receives configuration information of the first frequency resource when it is in the second state, or the terminal device receives configuration information of the first frequency resource when it is in the second mode.

[0293] S1620, the terminal device uses the first frequency resource to receive the first signal from the network device.

[0294] Accordingly, the network device uses the first frequency resource to transmit the first signal.

[0295] Here, the first signal refers to a signal received by the terminal device through the first module, or a signal received by the terminal device on the first link, or a signal received by the terminal device when it is in the first state, or a signal received by the terminal device when it is in the first mode. For details on the first signal, please refer to the preceding terminology explanation; it will not be repeated here.

[0296] The configuration information of the first frequency resource is used by the terminal device to obtain the information of the first frequency resource, and then the terminal device can use the first frequency resource to receive signals from the network device.

[0297] Based on this scheme, network devices can configure the frequency resources of the first link on the second link, enabling terminal devices to obtain the frequency resources of the first link on the second link and then use those resources to receive signals on the first link.

[0298] Optionally, the configuration information of the first frequency resource is used to indicate the frequency domain location of the first frequency resource. The following explanation considers two scenarios.

[0299] Scenario 1, in-band deployment.

[0300] Taking the first link and the second link as examples, based on scenario 1, the frequency domain resources occupied by the first link are located within the frequency band of the second link, meaning that the first link and the second link belong to the same frequency band. For example, if the bandwidth of the second link is F (e.g., 100MHz), F1 (e.g., 3MHz) of it can be allocated to the first link for use.

[0301] In one example, the second link does not use the frequency domain resources of F1. In this case, the terminal device uses a second frequency resource, which is different from the first frequency resource, to transmit signals with the network device on the second link.

[0302] In another example, the second link uses the frequency domain resources of F1. The first and second links can use the frequency domain resources of F1 in a time-division multiplexing manner, that is, the frequency domain resources of F1 are used by the first link for a period of time and by the second link for another period of time. Based on this situation, in the first time period, the terminal device uses the first frequency resources to receive a first signal from the network device on the first link; in the second time period, the terminal device uses the first frequency resources to transmit a second signal with the network device on the second link, and the second time period is different from the first time period.

[0303] Optionally, the frequency domain location of the first frequency resource includes the location of the RB.

[0304] For example, the configuration information of the first frequency resource may include the starting position of the RB and the number of RBs. By knowing the starting position of the RB and the number of RBs, the terminal device can determine the location of the RB, that is, it can know the frequency domain location of the first frequency resource.

[0305] For example, the configuration information of the first frequency resource includes the starting position of the RB. The number of RBs can be pre-agreed or pre-configured on the network side, without restriction. By knowing the starting position of the RB, the terminal device can determine the location of the RB, that is, it can know the frequency domain location of the first frequency resource.

[0306] Based on scenario 1, the first link is essentially deployed within the existing system, which itself has the concept of RBs (Resource Blocks). Therefore, the network side can directly configure the RB location occupied by the first link, and the terminal device can determine the frequency domain resources occupied by the first link based on the RB location. Furthermore, the first link does not require dedicated spectrum; the WUR (Wideband Registry) function can be deployed within the existing spectrum, offering greater flexibility for operators.

[0307] Scenario 2, out-of-band deployment.

[0308] Taking the first link and the second link as examples, based on scenario 2, the frequency domain resources occupied by the first link are located outside the frequency band of the second link. For example, the frequency location of the second link is 2100MHz to 2200MHz, with a bandwidth of 100MHz; the first link can be deployed at a location outside 2100MHz to 2200MHz (such as 700MHz to 702MHz). In this case, the first link and the second link belong to different frequency bands.

[0309] Optionally, the frequency domain location of the first frequency resource is indicated in the form of an ARFCN, that is, the network device configures the ARFCN value corresponding to the second frequency resource. The ARFCN may include, for example, one or more of the following: starting frequency location, center frequency location, and ending frequency location.

[0310] Optionally, the frequency domain location of the first frequency resource is indicated by the raster index of the first signal, i.e., the network device configures the raster index value corresponding to the second frequency resource. The raster index of the first signal may include, for example, one or more of the following: start frequency location, center frequency location, and end frequency location. Optionally, the raster of the first signal can be a channel raster, a SYNC raster, or a WUR raster specifically defined for the WUR link.

[0311] Based on scenario 2, a single WUR network can correspond to cells in multiple frequency bands, resulting in more efficient instruction. For example, an operator may have an NR network in the 2100MHz–2200MHz range and another in the 3500MHz–3600MHz range. This operator can deploy only a single WUR network in the 700MHz–702MHz range, which is associated with both of the aforementioned NR networks. This means that paging information from both NR networks can be transmitted through this single WUR network.

[0312] It is understood that in various embodiments of this application, "receive" can also be replaced by "detect" or "read". For example, "receive wake-up signal" can also be replaced by "detect wake-up signal" or "read wake-up signal".

[0313] It is also understood that in some of the above embodiments, the term "transmission" is used, and unless otherwise specified, transmission includes receiving and / or sending. For example, transmitting a signal may include receiving a signal and / or sending a signal.

[0314] It is also understood that in some of the above embodiments, the main circuit and wake-up circuit, as well as the first link and the second link, are mainly used as examples for illustrative purposes, and this application is not limited thereto. For example, "first link / wake-up circuit" can also be replaced with "first module", or "in a first state", or "in a first mode". For example, "terminal device receives a signal on the first link" can also be replaced with "terminal device receives a signal through the first module (or the first circuit)". "Second link / main circuit" can also be replaced with "second module", or "in a second state", or "in a second mode". For example, "terminal device receives a signal on the second link" can also be replaced with "terminal device receives a signal through the second module (or the second circuit)".

[0315] It is also understood that, in the various embodiments of this application, the interaction between a terminal device and a network device is mainly used as an example for illustrative purposes. This application is not limited thereto. The terminal device can be replaced by a receiving device, which can be either a terminal device or a network device; the network device can be replaced by a sending device, which can be either a terminal device or a network device. For example, "terminal device" can be replaced by "first terminal device," and "network device" can be replaced by "second terminal device."

[0316] It can also be understood that, in the embodiments of this application Figures 7(a) to 16 The examples provided are merely to facilitate understanding of the embodiments of this application by those skilled in the art, and are not intended to limit the embodiments of this application to the specific scenarios illustrated. Figures 7(a) to 16The examples are obviously subject to various equivalent modifications or changes, and such modifications or changes also fall within the scope of the embodiments of this application.

[0317] It is also understood that some optional features in the various embodiments of this application may not depend on other features in some scenarios, or may be combined with other features in some scenarios, without limitation.

[0318] It is also understood that the solutions in the various embodiments of this application can be used in reasonable combinations, and the explanations or descriptions of the various terms appearing in the embodiments can be referenced or explained to each other in the various embodiments, without limitation.

[0319] It is also understood that, in the above-described method embodiments, the methods and operations implemented by the terminal device can also be implemented by components of the terminal device (e.g., chips or circuits); in addition, the methods and operations implemented by the network device can also be implemented by components of the network device (e.g., chips or circuits), without limitation.

[0320] Corresponding to the methods described in the above embodiments, this application also provides corresponding apparatuses, which include modules for executing the methods described above. These modules can be software, hardware, or a combination of both. It is understood that the technical features described in the above method embodiments are also applicable to the following apparatus embodiments.

[0321] Figure 17 This is a schematic block diagram of a communication device provided in an embodiment of this application. The device 1700 includes a transceiver unit 1710 and a processing unit 1720. The transceiver unit 1710 can be used to implement corresponding communication functions. The transceiver unit 1710 can also be referred to as a communication interface or a communication unit. The processing unit 1720 can be used to perform data or signal processing.

[0322] Optionally, the device 1700 further includes a storage unit, which can be used to store instructions and / or data. The processing unit 1720 can read the instructions and / or data in the storage unit so that the device can perform the actions of the terminal device in the aforementioned method embodiments.

[0323] The device 1700 can be used to perform the actions performed by the communication device (such as a terminal device or a network device) in the various method embodiments described above. In this case, the device 1700 can be a communication device or a component of a communication device. The transceiver unit 1710 is used to perform the transceiver-related operations on the side of the communication device (such as a terminal device or a network device) in the method embodiments described above, and the processing unit 1720 is used to perform the processing-related operations on the side of the communication device (such as a terminal device or a network device) in the method embodiments described above.

[0324] When the device 1700 is used to implement the functions of the terminal device in the various method embodiments above: the transceiver unit 1710 is used to receive area identification information from the network device using the first frequency resource; the processing unit 1720 is used to perform an area update process using the second frequency resource based on the area identification information; or, the transceiver unit 1710 is used to receive system information using the second frequency resource.

[0325] The device 1700 can implement steps or processes corresponding to those executed by a terminal device in a method embodiment according to the present application. The device 1700 may include methods for performing... Figures 7(a) to 7(c) The unit of the method executed by the terminal device in the illustrated embodiment.

[0326] When the device 1700 is used to implement the functions of the network device in the various method embodiments above: the transceiver unit 1710 is used to transmit area identification information using the first frequency resource.

[0327] The device 1700 can implement steps or processes corresponding to those executed by a network device in a method embodiment according to the present application. The device 1700 may include methods for performing... Figures 7(a) to 7(c) The network device in the illustrated embodiment is a unit of the method executed by the network device.

[0328] A more detailed description of the device 1700 can be obtained directly from the relevant descriptions in the above method embodiments, and will not be repeated here.

[0329] It should also be understood that the device 1700 here is embodied in the form of a functional unit. The term "unit" here can refer to an application-specific integrated circuit (ASIC), electronic circuitry, a processor (e.g., a shared processor, a proprietary processor, or a group processor, etc.) and memory for executing one or more software or firmware programs, combined logic circuitry, and / or other suitable components supporting the described functions. In an alternative example, those skilled in the art will understand that the device 1700 can be specifically the terminal device in the above embodiments, and can be used to execute the various processes and / or steps corresponding to the terminal device in the above method embodiments; to avoid repetition, these will not be described again here.

[0330] The apparatus 1700 of each of the above-described schemes has the function of implementing the corresponding steps performed by the device (such as a terminal device or a network device) in the above-described methods. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (e.g., the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as processing units, can be replaced by a processor, respectively executing the transceiver operations and related processing operations in each method embodiment.

[0331] In addition, the transceiver unit 1710 may also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.

[0332] It should be pointed out that, Figure 17 The device mentioned can be the network element or equipment in the foregoing embodiments, or it can be a chip or chip system, such as a system on chip (SoC). The transceiver unit can be an input / output circuit or a communication interface; the processing unit is a processor, microprocessor, or integrated circuit integrated on the chip. No limitations are imposed here.

[0333] Figure 18 This is a schematic block diagram of another communication device provided in an embodiment of this application. The device 1800 includes a first module 1810. The first module 1810 may be, for example, a wake-up circuit, or a module of a wake-up circuit (such as a receiving module). The first module 1810 can be used to perform operations executed by the wake-up circuit on the communication device (such as a terminal device, or a network device) side in the above method embodiments, or can be used to perform operations executed through the first link on the communication device (such as a terminal device, or a network device) side in the above method embodiments, or can be used to perform operations executed when the communication device (such as a terminal device, or a network device) is in a first state in the above method embodiments, or can be used to perform operations executed when the communication device (such as a terminal device, or a network device) is in a first mode in the above method embodiments. The following description uses a terminal device as an example.

[0334] For example, the terminal device receives area identification information from the network device through the first module 1810.

[0335] Optionally, the device 1800 includes a second module 1820. The second module 1820 may be, for example, a main circuit, or a module of the main circuit (such as a receiving module). The first module 1810 and the second module 1820 may be integrated together or disposed separately. The second module 1820 may be used to perform operations executed by the main circuit on the communication device (such as a terminal device, or a network device) side in the above method embodiments, or may be used to perform operations executed via a second link on the communication device (such as a terminal device, or a network device) side in the above method embodiments, or may be used to perform operations executed when the communication device (such as a terminal device, or a network device) is in a second state in the above method embodiments, or may be used to perform operations executed when the communication device (such as a terminal device, or a network device) is in a second mode in the above method embodiments.

[0336] For example, the terminal device performs a region update process or receives system information through the second module 1820.

[0337] Figure 19 This is a schematic block diagram of another communication device provided in the embodiments of this application. The device 1900 includes a processor 1910, which is coupled to a memory 1920. The memory 1920 is used to store computer programs or instructions and / or data. The processor 1910 is used to execute the computer programs or instructions stored in the memory 1920, or to read the data stored in the memory 1920, so as to execute the methods in the above method embodiments.

[0338] In some embodiments, the processor 1910 may be one or more.

[0339] In some embodiments, the memory 1920 may be one or more.

[0340] In some embodiments, the memory 1920 is integrated with the processor 1910, or it is set separately.

[0341] In some embodiments, such as Figure 19 As shown, the device 1900 also includes a transceiver 1930 for receiving and / or transmitting signals. For example, a processor 1910 is used to control the transceiver 1930 to receive and / or transmit signals.

[0342] As one option, the device 1900 is used to implement the operations performed by a device (such as a terminal device or a network device) in the various method embodiments described above.

[0343] For example, processor 1910 is used to execute computer programs or instructions stored in memory 1920 to implement the relevant operations of the network device in the various method embodiments described above.

[0344] For example, processor 1910 is used to execute computer programs or instructions stored in memory 1920 to implement the relevant operations of the terminal device in the various method embodiments described above.

[0345] It should be understood that the processor mentioned in the embodiments of this application can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0346] It should also be understood that the memory mentioned in the embodiments of this application can be volatile memory and / or non-volatile memory. 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. Volatile memory can be random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM includes the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0347] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage module) can be integrated into the processor.

[0348] It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0349] This application also provides a computer-readable storage medium storing computer instructions for implementing the methods executed by a device (such as a terminal device or a network device) in the above-described method embodiments.

[0350] For example, when the computer program is executed by a computer, it enables the computer to implement the methods executed by the network device in the various embodiments of the above methods.

[0351] For example, when the computer program is executed by the computer, it enables the computer to implement the methods executed by the terminal device in the various embodiments of the above methods.

[0352] This application also provides a computer program product comprising instructions which, when executed by a computer, implement the methods described above as being executed by a device (such as a terminal device or a network device).

[0353] The explanations and beneficial effects of the relevant contents in any of the devices provided above can be found in the corresponding method embodiments provided above, and will not be repeated here.

[0354] In the several embodiments provided in this application, it should be understood that the disclosed apparatus 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 mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of apparatus or units may be electrical, mechanical, or other forms.

[0355] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. For example, the computer can be a personal computer, a server, or a network device, etc. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state disks, SSDs). For example, the aforementioned available media include, but are not limited to, USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks, and other media capable of storing program code.

[0356] Based on the above description, this application also provides the following embodiments:

[0357] Example 1. A method for information transmission, characterized in that it includes:

[0358] The terminal device uses the first frequency resource to receive area identification information from the network device;

[0359] Based on the area identification information, the terminal device uses the second frequency resources to perform an area update process or receive system information.

[0360] Example 2. The method according to Example 1, characterized in that,

[0361] The region identification information includes a tracking area identifier. The step of the terminal device using a second frequency to perform a region update procedure or receive system information based on the region identification information includes: if the terminal device determines that its tracking area has been updated based on the tracking area identifier, the terminal device uses the second frequency resources to perform a tracking area update procedure; or...

[0362] The area identification information includes an access network area identifier. The step of the terminal device using a second frequency to perform an access network area update procedure or receive system information based on the area identification information includes: if the terminal device determines that its access network area has been updated based on the access network area identifier, the terminal device uses the second frequency resources to perform the access network area update procedure; or...

[0363] The area identification information includes a cell identifier. Based on the area identification information, the terminal device uses a second frequency to perform an area update process or receive system information, including: when the terminal device determines that its cell has been updated according to the cell identifier, the terminal device uses the second frequency resources to receive system information of the cell indicated by the cell identifier.

[0364] Example 3. The method according to Example 1 or 2, characterized in that the terminal device uses a first frequency resource to receive area identification information from the network device, including:

[0365] The terminal device uses the first frequency resource to receive a first signal from the network device. The first signal includes the area identification information and also includes paging information.

[0366] Example 4. The method according to Example 1 or 2, characterized in that the terminal device uses a first frequency resource to receive area identification information from the network device, including:

[0367] The terminal device uses the first frequency resource to receive a synchronization signal from the network device, the synchronization signal including the area identification information.

[0368] Example 5. The method according to Example 1 or 2, characterized in that the area identification information is transmitted periodically.

[0369] Example 6. The method according to Example 5, characterized in that the method further includes:

[0370] The terminal device uses the first frequency resource to receive a synchronization signal from the network device, and the synchronization signal is transmitted periodically.

[0371] The terminal device uses a first frequency resource to receive area identification information from the network device, including:

[0372] After receiving the synchronization signal, the terminal device uses the first frequency resource to receive the area identification information from the network device after a preset time period, wherein the preset time period is greater than or equal to 0.

[0373] Example 7. The method according to Example 5 or 6, characterized in that,

[0374] The period of the area identification information is the same as the period of the synchronization signal; or,

[0375] The period of the area identification information is an integer multiple of the period of the synchronization signal.

[0376] Example 8. The method according to any one of Examples 1 to 7, characterized in that the terminal device includes a first module and a second module.

[0377] The terminal device receives the area identification information through the first module, and the terminal device executes the area update process or receives system information through the second module.

[0378] Example 9. The method according to any one of Examples 1 to 8, characterized in that,

[0379] The waveform of the first signal is different from the waveform of the second signal; and / or, the modulation method of the first signal is different from the modulation method of the second signal;

[0380] Wherein, the first signal is a signal carrying the area identification information and / or paging information, and the second signal is a signal transmitted by the terminal device using the second frequency resource.

[0381] Example 10. The method according to any one of Examples 1 to 9, characterized in that,

[0382] The waveform and / or modulation scheme of the first signal is an on / off keying OOK; and / or,

[0383] The waveform and / or modulation method of the second signal is orthogonal frequency division multiplexing (OFDM);

[0384] Wherein, the first signal is a signal carrying the area identification information and / or paging information, and the second signal is a signal transmitted by the terminal device using the second frequency resource.

[0385] Example 11. The method according to any one of Examples 1 to 10, characterized in that the method further comprises:

[0386] The terminal device uses the first frequency resource to receive paging information from the network device. The paging information includes information about one or more terminal devices that need to receive the paging, and the one or more terminal devices include the terminal device itself.

[0387] The terminal device receives first information from the network device and / or initiates random access.

[0388] The first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0389] Example 12. The method according to Example 11, characterized in that the terminal device receives first information from the network device and / or initiates random access, including:

[0390] The terminal device uses the second frequency resource to receive the first information from the network device and / or initiate random access.

[0391] Example 13. The method according to Example 11 or 12, characterized in that the terminal device includes a first module and a second module.

[0392] The terminal device receives the area identification information and the paging information through the first module, and the terminal device receives the first information and / or initiates random access through the second module.

[0393] Example 14. A method for information transmission, characterized in that it includes:

[0394] The network device uses a first frequency resource to transmit area identification information, wherein the first frequency resource is also used to transmit paging information, the paging information including information about one or more terminal devices that need to receive the paging.

[0395] Example 15. The method according to Example 14, characterized in that,

[0396] The area identification information includes one or more of the following: tracking area identifier, access network area identifier, and cell identifier.

[0397] Example 16. The method according to Example 14 or 15, characterized in that the network device uses a first frequency resource to transmit area identification information, including:

[0398] The network device uses the first frequency resource to send a first signal, the first signal including the area identification information, and the first signal also including the paging information.

[0399] Example 17. The method according to Example 14 or 15, characterized in that the network device uses a first frequency resource to transmit area identification information, including:

[0400] The network device uses the first frequency resource to send a synchronization signal, the synchronization signal including the area identification information.

[0401] Example 18. The method according to Example 14 or 15, wherein the area identification information is transmitted periodically.

[0402] Example 19. The method according to Example 18, characterized in that the method further includes:

[0403] The network device uses the first frequency resource to send a synchronization signal, which is transmitted periodically.

[0404] The network device uses the first frequency resource to transmit area identification information, including:

[0405] After a preset time elapsed following the transmission of the synchronization signal, the network device uses the first frequency resource to transmit the area identification information, wherein the preset time elapsed is greater than or equal to 0.

[0406] Example 20. The method according to Example 18 or 19, characterized in that,

[0407] The period of the area identification information is the same as the period of the synchronization signal; or,

[0408] The period of the area identification information is an integer multiple of the period of the synchronization signal.

[0409] Example 21. The method according to any one of Examples 14 to 20, characterized in that the network device includes a first module and a second module.

[0410] The network device sends the area identification information through the first module.

[0411] Example 22. The method according to any one of Examples 14 to 21, characterized in that,

[0412] The waveform of the first signal is different from the waveform of the second signal; and / or, the modulation method of the first signal is different from the modulation method of the second signal;

[0413] Wherein, the first signal is a signal carrying the area identification information and / or paging information, and the second signal is a signal transmitted by the network device using the second frequency resource.

[0414] Example 23. The method according to any one of Examples 14 to 22, characterized in that,

[0415] The waveform and / or modulation scheme of the first signal is an on / off keying OOK; and / or,

[0416] The waveform and / or modulation method of the second signal is orthogonal frequency division multiplexing (OFDM);

[0417] Wherein, the first signal is a signal carrying the area identification information and / or paging information, and the second signal is a signal transmitted by the network device using the second frequency resource.

[0418] Example 24. The method according to any one of Examples 14 to 23, characterized in that the method further comprises:

[0419] The network device uses the first frequency resource to send the paging information, which includes information about one or more terminal devices that need to receive the paging.

[0420] The network device sends first information to the one or more terminal devices and / or receives a random access preamble sequence from the one or more terminal devices.

[0421] The first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0422] Example 25. The method according to Example 24, characterized in that the network device sends first information to the one or more terminal devices and / or receives a random access preamble sequence from the one or more terminal devices, including:

[0423] The network device uses a second frequency resource to send first information to the one or more terminal devices and / or receive random access preamble sequences from the one or more terminal devices.

[0424] Example 26. The method according to Example 24 or 25, characterized in that the network device includes a first module and a second module.

[0425] The network device sends the area identification information and the paging information through the first module, and sends the first information to the one or more terminal devices and / or receives the random access preamble sequence from the one or more terminal devices through the second module.

[0426] Example 27. A method for information transmission, characterized in that it includes:

[0427] The network device uses a first frequency resource to send public information, wherein the first frequency resource is also used to transmit paging information, the paging information including information about one or more terminal devices that need to receive the paging.

[0428] Example 28. The method according to Example 27, wherein the public information includes one or more of the following:

[0429] Warning information or warning information receiving instructions, system information change instructions, and area identification information.

[0430] Example 29. The method according to Example 28, characterized in that,

[0431] The system information change indication information is used to indicate that system information block 1 has been changed.

[0432] Example 30. The method according to Example 28, characterized in that,

[0433] The warning information includes a first warning information and a second warning information; or,

[0434] The warning information includes the first warning information, and the method further includes: the network device using a second frequency resource to send the second warning information.

[0435] Example 31. The method according to any one of Examples 27 to 30, characterized in that the network device uses a first frequency resource to transmit public information, including:

[0436] The network device uses the first frequency resource to send a first signal, the first signal including the public information, and the first signal also including the paging information.

[0437] Example 32. The method according to any one of Examples 27 to 30, characterized in that the network device uses a first frequency resource to transmit public information, including:

[0438] The network device uses the first frequency resource to send a synchronization signal, the synchronization signal including the public information.

[0439] Example 33. The method according to any one of Examples 27 to 30, characterized in that the public information is transmitted periodically.

[0440] Example 34. The method according to Example 33, wherein the synchronization signal is transmitted periodically;

[0441] The network device uses the first frequency resource to send a synchronization signal, including:

[0442] After a preset time elapsed following the transmission of the synchronization signal, the network device uses the first frequency resource to transmit the public information, wherein the preset time elapsed is greater than or equal to 0.

[0443] Example 35. The method according to Example 33 or 34, characterized in that,

[0444] The period of the public information is the same as the period of the synchronization signal; or,

[0445] The period of the public information is an integer multiple of the period of the synchronization signal.

[0446] Example 36. The method according to any one of Examples 33 to 35, characterized in that the public information includes a first type of public information and a second type of public information, the first type of public information and the second type of public information are different, and the periods of the first type of public information and the second type of public information are different.

[0447] Example 37. The method according to Example 28 or 29, wherein the public information is the system information change indication information, the system information change indication information is used to indicate that the system information has changed, and the method further includes: the network device using a second frequency resource to send the system information.

[0448] Example 38. The method according to Example 28 or 30, characterized in that the public information is the warning information receiving indication information, and the method further includes:

[0449] After receiving the warning information, the network device sends the warning information using the first frequency resource.

[0450] Example 39. The method according to any one of Examples 27 to 38, characterized in that the method further comprises:

[0451] The network device uses the first frequency resource to send the paging information, and the one or more terminal devices include the terminal devices;

[0452] The network device sends first information to the terminal device and / or receives a random access preamble sequence from the terminal device.

[0453] The first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0454] Example 40. The method according to Example 39, characterized in that the network device sends first information to the terminal device and / or receives a random access preamble sequence from the terminal device, including:

[0455] The network device uses a second frequency resource to send first information to the terminal device and / or receive a random access preamble sequence from the terminal device.

[0456] Example 41. The method according to Example 39 or 40, characterized in that the network device includes a first module and a second module.

[0457] The network device sends the public information and the paging information through the first module, and sends the first information to the terminal device and / or receives the random access preamble sequence from the terminal device through the second module.

[0458] Example 42. A method for information transmission, characterized in that it includes:

[0459] The terminal device uses a first frequency resource to receive public information from a network device, wherein the first frequency resource is also used to transmit paging information, the paging information including information about one or more terminal devices that need to receive the paging.

[0460] Example 43. The method according to Example 42, wherein the public information includes one or more of the following:

[0461] Warning information or warning information receiving instructions, system information change instructions, and area identification information.

[0462] Example 44. The method according to Example 43, characterized in that,

[0463] The system information change indication information is used to indicate that system information block 1 has been changed.

[0464] Example 45. The method according to Example 43, characterized in that,

[0465] The warning information includes a first warning information and a second warning information; or,

[0466] The warning information includes the first warning information, and the method further includes: the terminal device using a second frequency resource to receive the second warning information from the network device.

[0467] Example 46. The method according to any one of Examples 42 to 45, characterized in that the terminal device uses a first frequency resource to receive public information from a network device, including:

[0468] The terminal device uses the first frequency resource to receive a first signal from the network device, the first signal including the public information and the paging information.

[0469] Example 47. The method according to any one of Examples 42 to 45, characterized in that the terminal device uses a first frequency resource to receive public information from a network device, including:

[0470] The terminal device uses the first frequency resource to receive a synchronization signal from the network device, the synchronization signal including the public information.

[0471] Example 48. The method according to any one of Examples 42 to 45, characterized in that the public information is transmitted periodically.

[0472] Example 49. The method according to Example 48, characterized in that the method further includes:

[0473] The terminal device uses the first frequency resource to receive a synchronization signal from the network device, and the synchronization signal is transmitted periodically.

[0474] The terminal device uses the first frequency resource to receive public information from the network device, including:

[0475] After receiving the synchronization signal, the terminal device uses the first frequency resource to receive the public information from the network device after a preset time period, wherein the preset time period is greater than or equal to 0.

[0476] Example 50. The method according to Example 48 or 49, characterized in that,

[0477] The period of the public information is the same as the period of the synchronization signal; or,

[0478] The period of the public information is an integer multiple of the period of the synchronization signal.

[0479] Example 51. The method according to any one of Examples 48 to 50, characterized in that the public information includes a first type of public information and a second type of public information, the first type of public information and the second type of public information are different, and the periods of the first type of public information and the second type of public information are different.

[0480] Example 52. The method according to Example 43, wherein the public information is the area identification information.

[0481] If the area identification information includes a tracking area identifier, and the terminal device determines that its tracking area has been updated based on the tracking area identifier, then the method further includes: the terminal device using a second frequency resource to perform a tracking area update process; or,

[0482] If the area identification information includes an access network area identifier, and the terminal device determines that its access network area has been updated based on the access network area identifier, then the method further includes: the terminal device using the second frequency resource to perform an access network area update process; or,

[0483] If the area identification information includes a cell identifier, and the terminal device determines that the terminal device's cell has been updated based on the cell identifier, then the method further includes: the terminal device using the second frequency resource to receive system information of the cell indicated by the cell identifier.

[0484] Example 53. The method according to Example 43 or 44, wherein the public information is the system information change indication information, the system information change indication information is used to indicate that the system information has changed, and the method further includes: the terminal device using a second frequency resource to receive the system information.

[0485] Example 54. The method according to Example 43 or 45, characterized in that the public information is the warning information receiving indication information, and the method further includes:

[0486] After receiving the warning information reception instruction, the terminal device uses the first frequency resource to receive the warning information from the network device.

[0487] Example 55. The method according to any one of Examples 42 to 54, characterized in that the method further comprises:

[0488] The terminal device uses the first frequency resource to receive the paging information from the network device, and the one or more terminal devices include the terminal device;

[0489] The terminal device receives first information from the network device and / or initiates random access.

[0490] The first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0491] Example 56. The method according to Example 55, characterized in that the terminal device receives first information from the network device and / or initiates random access, including:

[0492] The terminal device uses the second frequency resources to receive the first information from the network device and / or initiate random access.

[0493] Example 57. The method according to Example 55 or 56, characterized in that the terminal device includes a first module and a second module.

[0494] The terminal device receives the public information and the paging information through the first module, and the terminal device receives the first information from the network device and / or initiates random access through the second module.

[0495] Example 58. The method according to any one of Examples 27 to 57, characterized in that,

[0496] The waveform of the signal carrying the public information is the same as the waveform of the signal carrying the paging information, and / or the modulation scheme of the signal carrying the public information is the same as the modulation scheme of the signal carrying the paging information.

[0497] Example 59. The method according to any one of Examples 27 to 58, characterized in that,

[0498] The modulation scheme of the signal carrying the public information and the modulation scheme of the signal carrying the paging information are both on / off keying (OOK) and / or...

[0499] The waveform of the signal carrying the public information and / or the waveform of the signal carrying the paging information is OOK.

[0500] Example 60. A method for information transmission, characterized in that it includes:

[0501] The terminal device uses the first frequency resource to receive warning information or warning information receiving instruction information from the network device.

[0502] Example 61. The method according to Example 60, wherein the warning information receiving indication information is used to indicate the receipt of the warning information.

[0503] Example 62. The method according to Example 60 or 61, characterized in that,

[0504] The warning information includes a first warning information and a second warning information; or,

[0505] The warning information includes the first warning information, and the method further includes: the terminal device using a second frequency resource to receive the second warning information from the network device.

[0506] Example 63. The method according to any one of Examples 60 to 62, characterized in that, when the terminal device uses a first frequency resource to receive the warning information receiving indication information from the network device, the method further includes:

[0507] After receiving the warning information, the terminal device uses the first frequency resource to receive the warning information from the network device.

[0508] Example 64. The method according to any one of Examples 60 to 63, characterized in that the method further comprises:

[0509] The terminal device uses the first frequency resource to receive paging information from the network device. The paging information includes information about one or more terminal devices that need to receive the paging, and the one or more terminal devices include the terminal device itself.

[0510] The terminal device receives first information from the network device and / or initiates random access.

[0511] The first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0512] Example 65. The method according to Example 64, characterized in that the terminal device receives first information from the network device and / or initiates random access, including:

[0513] The terminal device uses the second frequency resources to receive the first information from the network device and / or initiate random access.

[0514] Example 66. The method according to Example 64 or 65, characterized in that the terminal device includes a first module and a second module.

[0515] The terminal device receives the warning information or warning information receiving instruction information from the network device through the first module, the terminal device receives the paging information from the network device through the first module, and the terminal device receives the first information from the network device and / or initiates random access through the second module.

[0516] Example 67. A method for information transmission, characterized in that it includes:

[0517] Network devices use the first frequency resource to send warning information or receive warning information and instruction information.

[0518] Example 68. The method according to Example 67, wherein the warning information receiving indication information is used to indicate the receipt of the warning information.

[0519] Example 69. The method according to Example 67 or 68, characterized in that,

[0520] The warning information includes a first warning information and a second warning information; or,

[0521] The warning information includes the first warning information, and the method further includes: the network device using a second frequency resource to send the second warning information.

[0522] Example 70. The method according to any one of Examples 67 to 69, characterized in that, when the network device uses a first frequency resource to transmit the warning information reception indication information, the method further includes:

[0523] After the network device sends the warning information reception information, it uses the first frequency resource to send the warning information.

[0524] Example 71. The method according to any one of Examples 67 to 70, characterized in that the method further comprises:

[0525] The network device uses the first frequency resource to send paging information, the paging information including information about one or more terminal devices that need to receive the paging;

[0526] The network device sends first information to the one or more terminal devices and / or receives a random access preamble sequence from the one or more terminal devices.

[0527] The first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0528] Example 72. The method according to Example 71, characterized in that the network device sends first information to the one or more terminal devices and / or receives a random access preamble sequence from the one or more terminal devices, including:

[0529] The network device uses a second frequency resource to send first information to the one or more terminal devices and / or receive random access preamble sequences from the one or more terminal devices.

[0530] Example 73. The method according to Example 71 or 72, characterized in that the network device includes a first module and a second module.

[0531] The network device sends the warning information or receives the warning information indication information through the first module, sends the paging information through the first module, and sends the first information to the one or more terminal devices and / or receives the random access preamble sequence from the one or more terminal devices through the second module.

[0532] Example 74. The method according to any one of Examples 60 to 73, characterized in that the first frequency resource is further used to transmit paging information, the paging information including information about one or more terminal devices that need to receive the paging.

[0533] The waveform of the signal carrying the warning information or warning information receiving indication information is the same as the waveform of the signal carrying the paging information, and / or the modulation method of the signal carrying the warning information or warning information receiving indication information is the same as the modulation method of the signal carrying the paging information.

[0534] Example 75. The method according to any one of Examples 60 to 74, characterized in that,

[0535] The modulation scheme of the signal carrying the warning information or the warning information receiving indication information and the modulation scheme of the signal carrying the paging information are both on / off key control (OOK), and / or,

[0536] The waveform of the signal carrying the warning information or warning information receiving indication information and / or the waveform of the signal carrying the paging information is OOK.

[0537] Example 76. A method for information transmission, characterized in that it includes:

[0538] The terminal device uses a first frequency resource to receive system information change indication information from the network device, the system information change indication information being used to indicate that system information has changed;

[0539] The terminal device uses a second frequency resource to receive the system information from the network device.

[0540] Example 77. The method according to Example 76, wherein the system information is system information block 1.

[0541] Example 78. The method according to Example 76 or 77, characterized in that the system information includes one or more of the following:

[0542] The public configuration information of the serving cell, the configuration information of the timer or counter of the terminal device, and the configuration information of the general access control.

[0543] Example 79. The method according to any one of Examples 76 to 78, characterized in that the terminal device includes a first module and a second module.

[0544] The terminal device receives the system information change instruction information through the first module, and the terminal device receives the system information through the second module.

[0545] Example 80. The method according to any one of Examples 76 to 79, characterized in that,

[0546] The waveform of the signal transmitted by the terminal device using the first frequency resource is different from the waveform of the signal transmitted by the terminal device using the second frequency resource, and / or the modulation method of the signal transmitted by the terminal device using the first frequency resource is different from the modulation method of the signal transmitted by the terminal device using the second frequency resource.

[0547] Example 81. The method according to any one of Examples 76 to 80, characterized in that,

[0548] The waveform and / or modulation scheme of the signal transmitted by the terminal device using the first frequency resource is an on / off key control (OOK); and / or,

[0549] The waveform and / or modulation scheme of the signal transmitted by the terminal device using the second frequency resource is Orthogonal Frequency Division Multiplexing (OFDM).

[0550] Example 82. The method according to any one of Examples 76 to 81, characterized in that the method further comprises:

[0551] The terminal device uses the first frequency resource to receive paging information from the network device. The paging information includes information about one or more terminal devices that need to receive the paging, and the one or more terminal devices include the terminal device itself.

[0552] The terminal device receives first information from the network device and / or initiates random access.

[0553] The first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0554] Example 83. The method according to Example 82, characterized in that the terminal device receives first information from the network device and / or initiates random access, including:

[0555] The terminal device uses the second frequency resource to receive the first information from the network device and / or initiate random access.

[0556] Example 84. The method according to Example 82 or 83, characterized in that the terminal device includes a first module and a second module.

[0557] The terminal device receives the system information change indication information and the paging information from the network device through the first module. The terminal device receives the system information from the network device through the second module. The terminal device receives the first information from the network device and / or initiates random access through the second module.

[0558] Example 85. A method for information transmission, characterized in that it includes:

[0559] The network device uses a first frequency resource to send system information change indication information, which is used to indicate that system information has changed.

[0560] The network device uses a second frequency resource to transmit the system information.

[0561] Example 86. The method according to Example 85, wherein the system information is system information block 1.

[0562] Example 87. The method according to Example 85 or 86, characterized in that the system information includes one or more of the following:

[0563] The public configuration information of the serving cell, the configuration information of the timer or counter of the terminal device, and the configuration information of the general access control.

[0564] Example 88. The method according to any one of Examples 85 to 87, characterized in that the network device includes a first module and a second module.

[0565] The network device sends the system information change instruction information through the first module, and the network device sends the system information through the second module.

[0566] Example 89. The method according to any one of Examples 85 to 88, characterized in that,

[0567] The waveform of the signal transmitted by the network device using the first frequency resource is different from the waveform of the signal transmitted by the network device using the second frequency resource, and / or the modulation method of the signal transmitted by the network device using the first frequency resource is different from the modulation method of the signal transmitted by the network device using the second frequency resource.

[0568] Example 90. The method according to any one of Examples 85 to 89, characterized in that,

[0569] The waveform and / or modulation scheme of the signal transmitted by the network device using the first frequency resource is an on / off keying OOK; and / or,

[0570] The waveform and / or modulation scheme of the signal transmitted by the network device using the second frequency resource is Orthogonal Frequency Division Multiplexing (OFDM).

[0571] Example 91. The method according to any one of Examples 85 to 90, characterized in that the method further comprises:

[0572] The network device uses the first frequency resource to send paging information, the paging information including information about one or more terminal devices that need to receive the paging;

[0573] The network device sends first information to the one or more terminal devices and / or receives a random access preamble sequence from the one or more terminal devices.

[0574] The first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0575] Example 92. The method according to Example 91, characterized in that the network device sends first information to the one or more terminal devices and / or receives a random access preamble sequence from the one or more terminal devices, including:

[0576] The network device uses the second frequency resource to send first information to the one or more terminal devices and / or receive random access preamble sequences from the one or more terminal devices.

[0577] Example 93. The method according to Example 91 or 92, characterized in that the network device includes a first module and a second module.

[0578] The network device sends the system information change indication information and the paging information through the first module, the network device sends the system information through the second module, and the network device sends the first information to the one or more terminal devices and / or receives the random access preamble sequence from the one or more terminal devices through the second module.

[0579] Example 94. A method for information transmission, characterized in that the method is applied to a terminal device, the terminal device comprising a first module and a second module, the method comprising:

[0580] The terminal device receives the configuration information of the first frequency resource through the second module;

[0581] The terminal device uses the first frequency resource to receive a first signal from the network device through the first module.

[0582] Example 95. The method according to Example 94, wherein the first signal includes one or more of the following: a synchronization signal, public information, and paging information, wherein the paging information includes information about one or more terminal devices that need to receive the paging.

[0583] Example 96. The method according to Example 94 or 95, wherein the configuration information of the first frequency resource is used to indicate the frequency domain position of the first frequency resource.

[0584] Example 97. The method according to Example 96, wherein the frequency domain location of the first frequency resource includes the location of the resource block.

[0585] Example 98. The method according to any one of Examples 94 to 97, characterized in that the method further comprises:

[0586] The terminal device uses a second frequency resource to transmit signals to the network device through the second module. The second frequency resource is different from the first frequency resource.

[0587] Example 99. The method according to any one of Examples 94 to 97, characterized in that the terminal device uses the first frequency resource to receive a first signal from the network device through the first module, including:

[0588] During the first time period, the terminal device uses the first frequency resource to receive the first signal from the network device through the first module;

[0589] The method further includes:

[0590] During the second time period, the terminal device uses the first frequency resource to transmit a second signal to the network device through the second module. The second time period is different from the first time period.

[0591] Example 100. The method according to Example 96, wherein the frequency domain position of the first frequency resource is an absolute radio frequency channel number, or the frequency domain position of the first frequency resource is a grid index of the first signal.

[0592] Example 101. The method according to Example 100, wherein the frequency domain position of the first frequency resource includes one or more of the following: starting frequency position, center frequency position, and ending frequency position.

[0593] Example 102. The method according to any one of Examples 94 to 101, characterized in that,

[0594] The waveform of the signal transmitted by the terminal device through the first module is different from the waveform of the signal transmitted by the terminal device through the second module, and / or the modulation method of the signal transmitted by the terminal device through the first module is different from the modulation method of the signal transmitted by the terminal device through the second module.

[0595] Example 103. The method according to any one of Examples 94 to 102, characterized in that,

[0596] The waveform and / or modulation mode of the signal transmitted by the terminal device through the first module is an on / off key control (OOK); and / or,

[0597] The waveform and / or modulation method of the signal transmitted by the terminal device through the second module is Orthogonal Frequency Division Multiplexing (OFDM).

[0598] Example 104. The method according to any one of Examples 94 to 103, characterized in that the method further comprises:

[0599] The terminal device uses the first frequency resource to receive paging information from the network device. The paging information includes information about one or more terminal devices that need to receive the paging, and the one or more terminal devices include the terminal device itself.

[0600] The terminal device receives first information from the network device and / or initiates random access.

[0601] The first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0602] Example 105. The method according to Example 104, characterized in that the terminal device receives first information from the network device and / or initiates random access, including:

[0603] The terminal device uses the second frequency resources to receive the first information from the network device and / or initiate random access.

[0604] Example 106. The method according to Example 104 or 105, characterized in that,

[0605] The terminal device receives the paging information from the network device through the first module, and the terminal device receives the first information from the network device and / or initiates random access through the second module.

[0606] Example 107. A method for information transmission, characterized in that the method includes:

[0607] The terminal device uses the second frequency resource to receive the configuration information of the first frequency resource;

[0608] The terminal device uses the first frequency resource to receive a first signal from the network device.

[0609] Example 108. The method according to Example 107, wherein the first signal includes one or more of the following: synchronization signal, public information, paging information, wherein the paging information includes information of one or more terminal devices that need to receive the paging.

[0610] Example 109. The method according to Example 107 or 108, wherein the configuration information of the first frequency resource is used to indicate the frequency domain position of the first frequency resource.

[0611] Example 110. The method according to Example 109, wherein the frequency domain location of the first frequency resource includes the location of the resource block.

[0612] Example 111. The method according to any one of Examples 107 to 110, characterized in that the method further comprises:

[0613] The terminal device uses the second frequency resource to transmit signals with the network device, and the second frequency resource is different from the first frequency resource.

[0614] Example 112. The method according to any one of Examples 107 to 110, characterized in that the terminal device uses the first frequency resource to receive a first signal from the network device, comprising:

[0615] During the first time period, the terminal device uses the first frequency resource to receive the first signal from the network device;

[0616] The method further includes:

[0617] During the second time period, the terminal device uses the first frequency resources to transmit a second signal with the network device, and the second time period is different from the first time period.

[0618] Example 113. The method according to Example 109, wherein the frequency domain position of the first frequency resource is an absolute radio frequency channel number, or the frequency domain position of the first frequency resource is a grid index of the first signal.

[0619] Example 114. The method according to Example 113 is characterized in that the frequency domain position of the first frequency resource includes one or more of the following: starting frequency position, center frequency position, and ending frequency position.

[0620] Example 115. The method according to any one of Examples 107 to 114, characterized in that,

[0621] The waveform of the signal transmitted by the terminal device using the first frequency resource is different from the waveform of the signal transmitted by the terminal device using the second frequency resource, and / or the modulation method of the signal transmitted by the terminal device using the first frequency resource is different from the modulation method of the signal transmitted by the terminal device using the second frequency resource.

[0622] Example 116. The method according to any one of Examples 107 to 115, characterized in that,

[0623] The waveform and / or modulation scheme of the signal transmitted by the terminal device using the first frequency resource is an on / off keying OOK; and / or,

[0624] The waveform and / or modulation scheme of the signal transmitted by the terminal device using the second frequency resource is Orthogonal Frequency Division Multiplexing (OFDM).

[0625] Example 117. The method according to any one of Examples 107 to 116, characterized in that the method further comprises:

[0626] The terminal device uses the first frequency resource to receive paging information from the network device. The paging information includes information about one or more terminal devices that need to receive the paging, and the one or more terminal devices include the terminal device itself.

[0627] The terminal device receives first information from the network device and / or initiates random access.

[0628] The first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0629] Example 118. The method according to Example 117, characterized in that the terminal device receives first information from the network device and / or initiates random access, including:

[0630] The terminal device uses the second frequency resource to receive the first information from the network device and / or initiate random access.

[0631] Example 119. A method for information transmission, characterized in that the method is applied to a network device, the network device comprising a first module and a second module, the method comprising:

[0632] The network device sends the configuration information of the first frequency resource to the terminal device through the second module;

[0633] The network device uses the first frequency resource to send a first signal to the terminal device through the first module.

[0634] Example 120. The method according to Example 119, wherein the first signal includes one or more of the following: synchronization signal, public information, paging information, wherein the paging information includes information of one or more terminal devices that need to receive the paging.

[0635] Example 121. The method according to Example 119 or 120, wherein the configuration information of the first frequency resource is used to indicate the frequency domain position of the first frequency resource.

[0636] Example 122. The method according to Example 121, wherein the frequency domain location of the first frequency resource includes the location of the resource block.

[0637] Example 123. The method according to any one of Examples 119 to 122, characterized in that the method further comprises:

[0638] The network device uses a second frequency resource to transmit signals to the terminal device through the second module. The second frequency resource is different from the first frequency resource.

[0639] Example 124. The method according to any one of Examples 119 to 122, characterized in that the network device uses the first frequency resource to send a first signal to the terminal device through the first module, including:

[0640] During the first time period, the network device uses the first frequency resource to send a first signal to the terminal device through the first module;

[0641] The method further includes:

[0642] During the second time period, the network device uses the first frequency resource to transmit a second signal to the terminal device through the second module. The second time period is different from the first time period.

[0643] Example 125. The method according to Example 121, wherein the frequency domain position of the first frequency resource is an absolute radio frequency channel number, or the frequency domain position of the first frequency resource is a grid index of the first signal.

[0644] Example 126. The method according to Example 125 is characterized in that the frequency domain position of the first frequency resource includes one or more of the following: starting frequency position, center frequency position, and ending frequency position.

[0645] Example 127. The method according to any one of Examples 119 to 126, characterized in that,

[0646] The waveform of the signal transmitted by the network device through the first module is different from the waveform of the signal transmitted by the network device through the second module, and / or the modulation method of the signal transmitted by the network device through the first module is different from the modulation method of the signal transmitted by the network device through the second module.

[0647] Example 128. The method according to any one of Examples 119 to 127, characterized in that,

[0648] The waveform and / or modulation mode of the signal transmitted by the network device through the first module is an on / off key control (OOK); and / or,

[0649] The waveform and / or modulation method of the signal transmitted by the network device through the second module is Orthogonal Frequency Division Multiplexing (OFDM).

[0650] Example 129. The method according to any one of Examples 119 to 128, characterized in that the method further comprises:

[0651] The network device uses the first frequency resource to send paging information, the paging information including information about one or more terminal devices that need to receive the paging;

[0652] The network device sends first information to the one or more terminal devices and / or receives a random access preamble sequence from the one or more terminal devices.

[0653] The first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0654] Example 130. The method according to Example 129, characterized in that the network device sends first information to the one or more terminal devices and / or receives a random access preamble sequence from the one or more terminal devices, including:

[0655] The network device uses a second frequency resource to send first information to the one or more terminal devices and / or receive random access preamble sequences from the one or more terminal devices.

[0656] Example 131. The method according to Example 129 or 130, characterized in that,

[0657] The network device sends the paging information through the first module, and the network device sends first information to the one or more terminal devices and / or receives random access preamble sequences from the one or more terminal devices through the second module.

[0658] Example 132. A method for information transmission, characterized in that the method includes:

[0659] The network device uses the second frequency resource to send the configuration information of the first frequency resource to the terminal device;

[0660] The network device uses the first frequency resource to send a first signal to the terminal device.

[0661] Example 133. The method according to Example 132, wherein the first signal includes one or more of the following: synchronization signal, public information, paging information, wherein the paging information includes information of one or more terminal devices that need to receive the paging.

[0662] Example 134. The method according to Example 132 or 133, wherein the configuration information of the first frequency resource is used to indicate the frequency domain position of the first frequency resource.

[0663] Example 135. The method according to Example 134, wherein the frequency domain location of the first frequency resource includes the location of the resource block.

[0664] Example 136. The method according to any one of Examples 132 to 135, characterized in that the method further comprises:

[0665] The network device uses the second frequency resource to transmit signals with the terminal device, and the second frequency resource is different from the first frequency resource.

[0666] Example 137. The method according to any one of Examples 132 to 135, characterized in that the network device uses the first frequency resource to send a first signal to the terminal device, including:

[0667] During the first time period, the network device uses the first frequency resource to send a first signal to the terminal device;

[0668] The method further includes:

[0669] In the second time period, the network device uses the first frequency resources to transmit a second signal to the terminal device, and the second time period is different from the first time period.

[0670] Example 138. The method according to Example 134, wherein the frequency domain position of the first frequency resource is an absolute radio frequency channel number, or the frequency domain position of the first frequency resource is a grid index of the first signal.

[0671] Example 139. The method according to Example 138, wherein the frequency domain position of the first frequency resource includes one or more of the following: starting frequency position, center frequency position, and ending frequency position.

[0672] Example 140. The method according to any one of Examples 132 to 139, characterized in that,

[0673] The waveform of the signal transmitted by the network device using the first frequency resource is different from the waveform of the signal transmitted by the network device using the second frequency resource, and / or the modulation method of the signal transmitted by the network device using the first frequency resource is different from the modulation method of the signal transmitted by the network device using the second frequency resource.

[0674] Example 141. The method according to any one of Examples 132 to 140, characterized in that,

[0675] The waveform and / or modulation scheme of the signal transmitted by the network device using the first frequency resource is an on / off keying OOK; and / or,

[0676] The waveform and / or modulation scheme of the signal transmitted by the network device using the second frequency resource is Orthogonal Frequency Division Multiplexing (OFDM).

[0677] Example 142. The method according to any one of Examples 132 to 141, characterized in that the method further comprises:

[0678] The network device uses the first frequency resource to send paging information, the paging information including information about one or more terminal devices that need to receive the paging;

[0679] The network device sends first information to the one or more terminal devices and / or receives a random access preamble sequence from the one or more terminal devices.

[0680] The first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

[0681] Example 143. The method according to Example 142, characterized in that the network device sends first information to the one or more terminal devices and / or receives a random access preamble sequence from the one or more terminal devices, including:

[0682] The network device uses the second frequency resource to send first information to the one or more terminal devices and / or receive random access preamble sequences from the one or more terminal devices.

[0683] Example 144. A communication apparatus, characterized in that it includes a module or unit for performing the method described in any one of Examples 1 to 143.

[0684] Example 145. A communication apparatus, characterized in that it includes a processor, the processor being configured to execute a computer program or instructions stored in a memory to cause the apparatus to perform the method described in any one of Examples 1 to 143.

[0685] Example 146. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program or instructions that, when the computer program or instructions are run on a computer, cause the computer to perform the method as described in any one of Examples 1 to 143.

[0686] Example 147. A computer program product, characterized in that the computer program product includes a computer program or instructions for performing the method as described in any one of Examples 1 to 143.

[0687] Example 148. A chip, characterized in that the chip is coupled to a memory for reading and executing program instructions stored in the memory to implement the method as described in any one of Examples 1 to 143.

[0688] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for information transmission, characterized in that, include: The terminal device uses the first frequency resource to receive area identification information from the network device; Based on the area identification information, the terminal device uses the second frequency resources to perform an area update process or receive system information; The terminal device uses the first frequency resource to receive paging information from the network device. The paging information includes information about one or more terminal devices that need to receive the paging, and the one or more terminal devices include the terminal device itself. The terminal device receives first information from the network device and / or initiates random access. The first information includes one or more of the following: paging downlink control information (DCI), paging message, and paging advance indication (PEI).

2. The method according to claim 1, characterized in that, The region identification information includes a tracking area identifier. The step of the terminal device using a second frequency to perform a region update procedure or receive system information based on the region identification information includes: if the terminal device determines that its tracking area has been updated based on the tracking area identifier, the terminal device uses the second frequency resources to perform a tracking area update procedure; or... The area identification information includes an access network area identifier. The step of the terminal device using a second frequency to perform an access network area update procedure or receive system information based on the area identification information includes: if the terminal device determines that its access network area has been updated based on the access network area identifier, the terminal device uses the second frequency resources to perform the access network area update procedure; or... The area identification information includes a cell identifier. Based on the area identification information, the terminal device uses a second frequency to perform an area update process or receive system information, including: when the terminal device determines that its cell has been updated according to the cell identifier, the terminal device uses the second frequency resources to receive system information of the cell indicated by the cell identifier.

3. The method according to claim 1 or 2, characterized in that, The terminal device uses a first frequency resource to receive area identification information from the network device, including: The terminal device uses the first frequency resource to receive a first signal from the network device. The first signal includes the area identification information and also includes paging information.

4. The method according to claim 1 or 2, characterized in that, The terminal device uses a first frequency resource to receive area identification information from the network device, including: The terminal device uses the first frequency resource to receive a synchronization signal from the network device, the synchronization signal including the area identification information.

5. The method according to claim 1 or 2, characterized in that, The area identification information is transmitted periodically.

6. The method according to claim 5, characterized in that, The method further includes: The terminal device uses the first frequency resource to receive a synchronization signal from the network device, and the synchronization signal is transmitted periodically. The terminal device uses a first frequency resource to receive area identification information from the network device, including: After receiving the synchronization signal, the terminal device uses the first frequency resource to receive the area identification information from the network device after a preset time period, wherein the preset time period is greater than or equal to 0.

7. The method according to claim 6, characterized in that, The period of the area identification information is the same as the period of the synchronization signal; or, The period of the area identification information is an integer multiple of the period of the synchronization signal.

8. The method according to claim 1, characterized in that, The terminal device includes a first module and a second module. The terminal device receives the area identification information through the first module, and the terminal device executes the area update process or receives system information through the second module.

9. The method according to claim 1, characterized in that, The waveform of the first signal is different from the waveform of the second signal; and / or, the modulation method of the first signal is different from the modulation method of the second signal; Wherein, the first signal is a signal carrying the area identification information and / or paging information, and the second signal is a signal transmitted by the terminal device using the second frequency resource.

10. The method according to claim 1, characterized in that, The waveform and / or modulation scheme of the first signal is an on / off keying OOK; and / or, The waveform and / or modulation method of the second signal is orthogonal frequency division multiplexing (OFDM); Wherein, the first signal is a signal carrying the area identification information and / or paging information, and the second signal is a signal transmitted by the terminal device using the second frequency resource.

11. The method according to claim 1, characterized in that, The terminal device receives first information from the network device and / or initiates random access, including: The terminal device uses the second frequency resource to receive the first information from the network device and / or initiate random access.

12. The method according to claim 1, characterized in that, The terminal device includes a first module and a second module. The terminal device receives the area identification information and the paging information through the first module, and the terminal device receives the first information and / or initiates random access through the second module.

13. A communication apparatus, characterized in that, Includes modules or units for performing the method according to any one of claims 1 to 12.

14. A communication device, characterized in that, Includes a processor for executing a computer program or instructions stored in a memory to cause the apparatus to perform the method of any one of claims 1 to 12.

15. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 12.

16. A computer program product, characterized in that, The computer program product includes a computer program or instructions for performing the method as described in any one of claims 1 to 12.

17. A chip, characterized in that, The chip is coupled to a memory, and the chip includes a processor for reading and executing program instructions stored in the memory to implement the method as described in any one of claims 1 to 12.

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