Wireless communication method, terminal device, and network device

Abstract

Provided are a wireless communication method, a terminal device, and a network device. The method comprises: a terminal device receives first information sent by a network device, the first information being used for determining to periodically send system information or to send the system information on the basis of a request. In embodiments of the present application, a network device may send first information to a terminal device, so that the terminal device determines a sending manner of system information on the basis of the first information, thereby helping to improve the success rate of sending the system information.

Description

Wireless communication methods, terminal devices, and network devices Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to wireless communication methods, terminal devices, and network devices. Background Technology

[0002] In traditional communication systems, network devices periodically transmit system information, which is crucial for idle terminal devices to access the network. However, network devices cannot predict the number of terminal devices that may need to read system information. Therefore, some periodically transmitted system information is wasted. Furthermore, because network devices need to maintain system information, they cannot enter deep sleep mode to save power. According to operator billing records, operating costs due to power consumption account for a large portion of billing costs. Therefore, reducing the energy consumption of network devices will not only help the future operation of cellular systems but also benefit the environment, contributing to carbon emission reduction and mitigating global warming. However, if network devices directly omit transmitting system information, it will prevent idle terminal devices from accessing the cell, thus rendering the cell undefined. Therefore, a request-based system information transmission scheme has been introduced into communication systems; that is, system information can be transmitted based on requests from terminal devices.

[0003] As mentioned above, the communication system can support two methods of sending system information: periodic sending of system information and sending system information based on requests. However, network devices and terminal devices may have different understandings of the system information sending methods, leading to system information transmission failures. Summary of the Invention

[0004] This application provides a wireless communication method, terminal device, and network device. The various aspects covered by this application are described below.

[0005] In a first aspect, a wireless communication method is provided, comprising: a terminal device receiving first information sent by a network device, the first information being used to determine whether to periodically send system information or to send system information based on a request.

[0006] In a second aspect, a wireless communication method is provided, comprising: a network device sending first information to a terminal device, the first information being used to determine whether to periodically send system information or to send system information based on a request.

[0007] Thirdly, a terminal device is provided, including: a receiving unit, configured to receive first information sent by a network device, the first information being used to determine whether to periodically send system information or to send system information based on a request.

[0008] Fourthly, a network device is provided, comprising: a sending unit, configured to send first information to a terminal device, the first information being configured to determine whether to periodically send system information or to send system information based on a request.

[0009] Fifthly, a terminal device is provided, including a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to invoke the computer programs in the memory, causing the terminal device to perform some or all of the steps in the method of the first aspect.

[0010] In a sixth aspect, a network device is provided, including a processor, a memory, and a transceiver, wherein the memory is used to store one or more computer programs, and the processor is used to invoke the computer programs in the memory to cause the network device to perform some or all of the steps in the method of the second aspect.

[0011] Seventhly, embodiments of this application provide a communication system including the aforementioned terminal device and / or network device. In another possible design, the system may further include other devices that interact with the terminal device or network device as described in the embodiments of this application.

[0012] Eighthly, embodiments of this application provide a computer-readable storage medium storing a computer program that causes a communication device (e.g., a terminal device or a network device) to perform some or all of the steps in the methods described above.

[0013] Ninthly, embodiments of this application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a communication device (e.g., a terminal device or a network device) to perform some or all of the steps of the methods described in the foregoing aspects. In some implementations, the computer program product may be a software installation package.

[0014] In a tenth aspect, embodiments of this application provide a chip including a memory and a processor, the processor being able to call and run a computer program from the memory to implement some or all of the steps described in the methods of the foregoing aspects.

[0015] In this embodiment of the application, the network device can send first information to the terminal device so that the terminal device can determine the method of sending system information based on the first information, which helps to improve the success rate of system information transmission. Attached Figure Description

[0016] Figure 1 shows the wireless communication system 100 used in an embodiment of this application.

[0017] Figure 2 is a schematic flowchart of a wireless communication method according to an embodiment of this application.

[0018] Figure 3 is a schematic diagram illustrating the change from periodic sending of system information to request sending of system information in an embodiment of this application.

[0019] Figure 4 is a schematic diagram of the change from periodic sending of system information to request sending of system information in an embodiment of this application.

[0020] Figure 5 is a schematic diagram of determining the start time of sending system information based on the request based on the first cycle in an embodiment of this application.

[0021] Figure 6 is a schematic diagram of determining the start time of sending system information based on the request based on the first time window in an embodiment of this application.

[0022] Figure 7 is a schematic diagram of determining the start time of sending system information based on the request based on the first time domain resource in an embodiment of this application.

[0023] Figure 8 is a schematic diagram of determining the start time of periodic transmission system information based on the first period in an embodiment of this application.

[0024] Figure 9 is a schematic diagram of determining the start time of periodically sending system information based on a first time window in an embodiment of this application.

[0025] Figure 10 is a schematic diagram of determining the start time of periodically sending system information based on the first time domain resource in an embodiment of this application.

[0026] Figure 11 is a schematic diagram of a terminal device according to an embodiment of this application.

[0027] Figure 12 is a schematic diagram of a network device according to an embodiment of this application.

[0028] Figure 13 is a schematic structural diagram of a communication device according to an embodiment of this application. Detailed Implementation

[0029] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0030] Figure 1 illustrates a wireless communication system 100 according to an embodiment of this application. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide communication coverage for a specific geographical area and may communicate with the terminal device 120 located within that coverage area.

[0031] Figure 1 illustrates an exemplary network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices, and each network device may include other terminal devices within its coverage area. This application embodiment does not limit this.

[0032] Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment.

[0033] It should be understood that the technical solutions of the embodiments of this application can be applied to various communication systems, such as: 5th generation (5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems, such as 6th generation mobile communication systems, satellite communication systems, and so on.

[0034] 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 (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device in this application embodiment can be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects, and machines, such as a handheld device with wireless connectivity, vehicle-mounted device, etc. The terminal devices in the embodiments of this application can be mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, self-driving, remote medical surgery, smart grids, transportation safety, smart cities, and smart homes, etc. Optionally, the UE can act as a base station. For example, the UE can act as a scheduling entity, providing sidelink signals between UEs in V2X or D2D, etc. For example, cellular phones and cars communicate with each other using sidelink signals. Cellular phones and smart home devices communicate without relaying communication signals through a base station.

[0035] 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, transmitting and receiving point (TRP), transmitting point (TP), master MeNB, auxiliary SeNB, multi-mode radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or similar, 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 device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, network-side devices in 6G networks, and devices that perform base station functions in future communication systems. Base stations can support networks using 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.

[0036] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move 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.

[0037] In some deployments, the network device in this application embodiment may refer to a CU or a DU, or the network device may include both a CU and a DU. The gNB may also include an AAU.

[0038] 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.

[0039] It should be understood that all or part of the functions of the communication device in this application can also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (e.g., a cloud platform).

[0040] In traditional communication systems, network devices periodically transmit system information, which is crucial for idle terminal devices to access the network. However, network devices cannot predict the number of terminal devices that may need to read system information. Therefore, some periodically transmitted system information is wasted. Furthermore, because network devices need to maintain system information, they cannot enter deep sleep mode to save power. According to operator billing records, operating costs due to power consumption account for a large portion of billing costs. Therefore, reducing the energy consumption of network devices will not only help the future operation of cellular systems but also benefit the environment, contributing to carbon emission reduction and mitigating global warming. However, if network devices directly omit transmitting system information, it will prevent idle terminal devices from accessing the cell, thus rendering the cell undefined. Therefore, a request-based system information transmission scheme has been introduced into communication systems; that is, system information can be transmitted based on requests from terminal devices.

[0041] As mentioned above, the communication system can support two methods of sending system information: periodic sending of system information and sending system information based on requests. However, network devices and terminal devices may have different understandings of the system information sending methods, leading to system information transmission failures.

[0042] Therefore, to address the above-mentioned problems, this application provides a wireless communication method in which a network device can send first information to a terminal device so that the terminal device can determine the method of sending system information based on the first information, thereby helping to improve the success rate of system information transmission.

[0043] For ease of understanding, the wireless communication method of this application embodiment is described below with reference to FIG2. The method shown in FIG2 includes step S210. In step S210, the network device sends first information to the terminal device, the first information being used to determine whether to periodically send system information or to send system information based on a request.

[0044] In some implementations, the aforementioned request-based system information sending can be replaced with a request-based system information sending from the terminal device. It should be noted that this application does not limit the terminal device. In some implementations, the terminal device receiving the first information may be different from the terminal device requesting the system information. For example, the terminal device receiving the first information is terminal device 1, and the terminal device requesting the system information can be terminal device 2. In this case, it can be understood that terminal device 2 assists terminal device 1 in requesting system information. Of course, in this application embodiment, the terminal device receiving the first information and the terminal device requesting the system information are the same.

[0045] In some implementations, the aforementioned system information may be information carried within a system information block (SIB). For example, the system information may be information within an SIB.

[0046] In some scenarios, to conserve network energy, network devices (or serving cells) can enter network energy saving (NES) mode. In this mode, network devices can send system information based on requests from terminal devices, rather than periodically. In some scenarios, entering NES mode is also referred to as entering an NES state. Conversely, if a network device sends system information periodically, it can be said to be in cell A state. Therefore, in some implementations, the first piece of information can be understood as determining the state (or mode) of the network device, and correspondingly, the state of the network device indicates the method of sending system information. In other words, the first piece of information determines the state of the network device, and the state of the network device determines whether to send system information periodically or based on requests.

[0047] In some implementations, the first information includes one or more of the following: first instruction information, first parameter, and first configuration information.

[0048] Taking the first information including the first indication information as an example, in some implementations, the first indication information is related to system information updates. For example, the first indication information can be a short message used to indicate system information updates.

[0049] Taking the first information including the first parameter as an example, in some implementations, the value of the first parameter is used to determine whether the network periodically sends system information.

[0050] In some implementations, the value of the first parameter is used to indicate one or more of the following: whether periodically transmitted system information is transmitted within the cell; whether a corresponding control resource set exists for the SSB; and the value of the first parameter is used to indicate the frequency domain offset between the SSB and the control resource set, wherein the control resource set is used to transmit scheduling information for system information.

[0051] In some implementations, the control resource set may be, for example, control resource set (CORESET)#0, which is used to detect downlink control information (DCI) for scheduling SIB1 transmissions.

[0052] In some implementations, the first parameter can be k. SSB This parameter can be carried in the master indication block (MIB) in the SSB.

[0053] In some implementations, the value of the first parameter can correspond to a first value range or a second value range that do not overlap. The value range of the first parameter is either the first value range or the second value range, and is used to determine whether the network periodically sends system information.

[0054] In some implementations, the range of values ​​for the first parameter is defined as the first value range, and the value of the first parameter is used to determine the system information that the network periodically sends. In some scenarios, the value of the first parameter corresponding to the first value range can be referred to as the "valid value".

[0055] In some implementations, the first value range satisfies one of the following: the value of the first parameter corresponding to frequency range (FR)1 is less than or equal to 23; the value of the first parameter corresponding to frequency band FR2 is less than or equal to 11.

[0056] In some implementations, the value range of the first parameter falls within the second value range, and the value of the first parameter is used to determine whether the network periodically sends system information. In some scenarios, the value of the first parameter corresponding to the second value range can be called an "invalid value".

[0057] In some implementations, the second value range satisfies one of the following: the value of the first parameter corresponding to frequency band FR1 is greater than 23; the value of the first parameter corresponding to frequency band FR2 is greater than 11.

[0058] Taking the first information including the first configuration information as an example, in some implementations, the first configuration information is used to configure the resources of the first request, and the first request is used to request the sending of system information.

[0059] In some implementations, the first request mentioned above can be transmitted in WUS resources. Therefore, the first request is also called UL WUS, and the first configuration information is also called "WUS configuration".

[0060] In some scenarios, the first configuration information is also called "dedicated SIB".

[0061] The foregoing section introduced the first parameter, first configuration information, and first indication information in the embodiments of this application. The following section describes the transmission method of the first parameter, first configuration information, and first indication information.

[0062] In some implementations, the first parameter and / or the first configuration information are transmitted within the first cycle, while the transmission time of the first indication information is prior to the first cycle.

[0063] In some implementations, the first cycle can be the system information change cycle, also known as the "system information (SI) change cycle". Of course, in the embodiments of this application, the first cycle can also be a specially introduced cycle.

[0064] In some implementations, the transmission time of the first indication information preceding the first cycle may include the transmission time of the first indication information being in the previous cycle (also known as the second cycle), as described below with reference to Figure 3. Of course, in the embodiments of this application, the cycle in which the transmission time of the first indication information is located may be separated from the first cycle by one or more cycles.

[0065] In some implementations, if the first indication information is transmitted in the second cycle, and the value range of the first parameter transmitted in the second cycle corresponds to the second value range, then the network device will continue to send system information based on the cycle in the first cycle. In this case, the first cycle can be understood as a transition period from sending system information based on the cycle to sending system information based on the request.

[0066] In some implementations, the first period may include one or more time windows for transmitting system information. In other implementations, a time window may include one or more time-domain resources for transmitting system information. This will be described below with reference to Figure 5.

[0067] In this embodiment, the time-domain resources are not limited. In some implementations, time-domain resources may include time slots. Of course, in this embodiment, the first time-domain resource may include other time-domain resources such as symbols.

[0068] For ease of understanding, the following section, in conjunction with Figure 3, describes the scheme of changing the system information from periodic sending to request sending in the embodiments of this application.

[0069] Referring to Figure 3, assuming that during SI change cycle 1, the network device is in Cell A state, at this time, SIB1 is periodically transmitted in the cell, and k of FR1... SSB k less than or equal to 23, or FR2 SSB For ease of description, k less than or equal to 11 is referred to as effective k. SSB When a network device needs to switch from Cell A state to NES state, the network device will send a short message (as an example of the first indication information) in SI change cycle 1 to indicate that the MIB indication will be changed in the next SI change cycle, for example, changing k SSB The value is changed to indicate that SIB1 is not periodically transmitted in this cell, that is, the k of FR1. SSB The value is changed to be greater than 23, k of FR2 SSB The value was changed to be greater than 11 (for ease of description, this is called invalid k). SSB However, during SI change cycle 2 (as an example of the first cycle), network devices will continue to broadcast SIB1. SI change cycle 2 can be understood as the transition period for the network to switch from Cell A state to NES state. The cell will begin to enter the NES state from the end of SI change cycle 2.

[0070] In some other implementations, the first parameter is transmitted within the first cycle, and the transmission time of the first indication information is before the first cycle. For an introduction to the first cycle, please refer to the above.

[0071] In some implementations, if the first indication information is transmitted in the second cycle, and the value range of the first parameter transmitted in the second cycle corresponds to the first value range, then the network device will switch from sending system information based on the cycle to sending system information based on the request within the first cycle. In this case, it can be understood that no transition period is set for switching from sending system information based on the request to sending system information based on the cycle.

[0072] For ease of understanding, the following section, in conjunction with Figure 4, describes the scheme in this application that changes the system information from periodic sending to request sending.

[0073] Referring to Figure 4, assuming that during SI change cycle 1, the network device is in NES state, at this time, SIB1 is not periodically transmitted in the cell, and k of FR1... SSB Value greater than 23, k of FR2 SSB Values ​​greater than 11 (referred to as invalid k for ease of description) SSBWhen a network device needs to switch from NES state to Cell A state, the network device will send a short message (as an example of the first indication information) in SI change cycle 1 to indicate that the MIB indication will be changed in the next SI change cycle, for example, changing k SSB The value is changed to represent the value of SIB1 that is periodically transmitted in this cell, that is, the k of FR1. SSB The value is changed to less than or equal to 23, k of FR2 SSB The value is changed to less than or equal to 11 (for ease of description, this is called the effective k). SSB The cell will enter Cell A state at the end of SI change cycle 1.

[0074] The first information in the embodiments of this application has been introduced above. The following section describes a scheme for determining the system information sending method based on the first information, based on cases 1 to 3.

[0075] In scenario 1, if the terminal device receives the first indication information, the first configuration information, and the first parameter, and the value of the first parameter falls within the second value range, then the system information is sent in a request-based manner. That is to say, the above method also includes: the terminal device determining that the system information is sent in a request-based manner.

[0076] In some implementations, if the terminal device is camped on the serving cell, the terminal device can receive the first instruction information, the first configuration information, and the first parameters.

[0077] In some implementations, the start time for sending system information based on requests can be determined based on the transmission resources corresponding to the first configuration information. In other words, the switching time for the system information sending method to switch from periodic sending to request-based sending can be determined based on the transmission resources corresponding to the first configuration information.

[0078] In this application embodiment, the implementation method for determining the start time is not limited. In some implementations, the transmission resources corresponding to the first configuration information are determined based on the first period, and the start time for sending system information based on the request is determined based on the first period.

[0079] In this application embodiment, the scheme for determining the start time based on the first period is not limited. In some implementations, determining the start time based on the first period may include determining the start time for sending system information based on the request based on the end time of the first period. In other implementations, determining the start time based on the first period may include determining the start time for sending system information based on the request based on the start time of the first period. Of course, in this application embodiment, determining the start time based on the first period may include determining the start time for sending system information based on a certain moment in the first period.

[0080] Furthermore, in this embodiment, determining the start time of sending system information based on the end time of the first cycle can include using the end time of the first cycle as the start time of sending system information based on the request, or using the end time of the first cycle as the start time and obtaining the start time of sending system information based on the request after a first time domain offset. Correspondingly, determining the start time of sending system information based on a certain moment (including the start time) within the first cycle is similar and will not be elaborated further for simplicity.

[0081] In the embodiments of this application, the method for determining the first time domain offset is not limited. In some implementations, the first time domain offset may be determined based on one or more of the following: predefined information, preconfiguration information, and configuration information sent by the network device.

[0082] For ease of understanding, the following describes, with reference to Figure 5, the scheme for determining the start time of the request to send system information based on the first cycle in the embodiments of this application, wherein the first cycle is SI change cycle 1.

[0083] Referring to Figure 5, when the terminal device receives a short message indicating an SI change, it will read the MIB from the next SI change cycle (i.e., SI change cycle 1). When the terminal device obtains k SSB , and k SSB The value of indicates that when there is no periodic transmission of SIB1 within the cell, the terminal device can determine that it will enter the NES state starting from T0. Assuming the first configuration information is transmitted in SI change cycle 1, in one implementation, T0 can be the end time of the SI change cycle. In another implementation, T0 can be obtained by taking the end time of the SI change cycle as the starting time and then applying a first time-domain offset.

[0084] In some other implementations, the transmission resources corresponding to the first configuration information are within the first time window, and accordingly, the start time for sending system information based on the request is determined based on the first time window.

[0085] In some implementations, the first time window can be one of one or more time windows included in the system information change cycle. In some scenarios, the one or more time windows included in the system information change cycle are also referred to as SI windows.

[0086] In this application embodiment, the scheme for determining the start time based on the first time window is not limited. In some implementations, determining the start time based on the first time window may include determining the start time for sending system information based on the request based on the end time of the first time window. In other implementations, determining the start time based on the first time window may include determining the start time for sending system information based on the start time of the first time window. Of course, in this application embodiment, determining the start time based on the first time window may include determining the start time for sending system information based on a certain moment within the first time window.

[0087] Furthermore, in this embodiment, determining the start time of sending system information based on the end time of the first time window can include using the end time of the first time window as the start time of sending system information based on the request, or using the end time of the first time window as the start time and obtaining the start time of sending system information based on the request after a first time domain offset. Correspondingly, determining the start time of sending system information based on a certain moment (including the start time) within the first time window is similar, and for the sake of brevity, it will not be described in detail again.

[0088] In the embodiments of this application, the method for determining the first time domain offset is not limited. In some implementations, the first time domain offset may be determined based on one or more of the following: predefined information, preconfiguration information, and configuration information sent by the network device.

[0089] For ease of understanding, the following describes, with reference to Figure 6, the scheme for determining the start time of the request sending system information based on the first time window in the embodiments of this application, wherein the first time window is SI window 3.

[0090] Referring to Figure 6, when the terminal device receives a short message indicating an SI change, it will read the MIB from the next SI change cycle (i.e., SI change cycle 1). When the terminal device obtains k SSB , and k SSB The value of indicates that when there is no periodic transmission of SIB1 within the cell, the terminal device can determine that it will enter the NES state starting from T0. Assuming the first configuration information is transmitted within SI window 3 of SI change cycle 1, in one implementation, T0 can be the end time of SI window 3. In another implementation, T0 can be obtained by taking the end time of SI window 3 as the starting time and then applying a first time-domain offset.

[0091] In some other implementations, the transmission resource corresponding to the first configuration information is the first time domain resource. The start time for sending system information based on the request is determined based on the first time domain resource. The first time domain resource can be, for example, the time domain resource located within the time window as described above. For related information, please refer to the above text.

[0092] In this embodiment, determining the start time for sending system information based on a request using a first time-domain resource can include either using the first time-domain resource as the start time for sending system information based on a request, or using the first time-domain resource as the starting time and then subtracting a first time-domain offset to obtain the start time for sending system information based on a request. In this embodiment, the method for determining the first time-domain offset is not limited. In some implementations, the first time-domain offset can be determined based on one or more of the following: predefined information, pre-configured information, or configuration information sent by the network device.

[0093] For ease of understanding, the following describes the scheme for determining the start time of the request to send system information based on the first time domain resource in the embodiment of this application with reference to Figure 7. The first time domain resource is the second time domain resource in SI window 3 in SI change cycle 1.

[0094] Taking time-domain resources in time slots as an example, as shown in Figure 7, when the terminal device receives a short message indicating a SI change, it will read the MIB from the next SI change cycle (i.e., SI change cycle 1). When the terminal device obtains k... SSB , and k SSB The value indicates that when there is no periodic transmission of SIB1 within the cell, the terminal device can determine that it will enter the NES state starting from T0. Assuming the first configuration information is transmitted in the second time-domain resource within SI window 3 of SI change cycle 1, in one implementation, T0 can be the corresponding time of the second time-domain resource. In another implementation, T0 can be obtained by taking the end time of the second time-domain resource as the starting time and then subtracting a first time-domain offset.

[0095] In scenario 2, if the terminal device does not receive the first indication information and / or the first configuration information, but receives the first parameter whose value falls within a first value range, then the terminal device can determine that the system information is sent periodically. That is to say, the above method also includes: the terminal device determining that the system information is sent periodically.

[0096] It should be noted that if the network device switches from sending system information based on requests to sending system information periodically, the network device may not need to send the first configuration information to the terminal device. Additionally, in some scenarios, the terminal device may not be camped within the cell, and therefore may not be able to receive the first indication information.

[0097] In some implementations, the start time for periodically sending system information can be determined based on the transmission resources corresponding to the first parameter. In other words, the switching time for the system information sending method to switch from request-based sending to periodic sending can be determined based on the transmission resources corresponding to the first parameter.

[0098] In this application embodiment, the implementation method for determining the start time is not limited. In some implementations, the transmission resources corresponding to the first parameter are within the first period, and the start time for sending system information based on the period is determined based on the first period.

[0099] In this application embodiment, the scheme for determining the start time based on the first period is not limited. In some implementations, determining the start time based on the first period may include determining the start time for sending system information based on the end time of the first period. In other implementations, determining the start time based on the first period may include determining the start time for sending system information based on the start time of the first period. Of course, in this application embodiment, determining the start time based on the first period may include determining the start time for sending system information based on a certain moment within the first period.

[0100] Furthermore, in this embodiment, determining the start time of the periodic transmission system information based on the end time of the first cycle can include using the end time of the first cycle as the start time, or using the end time of the first cycle as the start time and obtaining the start time of the periodic transmission system information after a first time domain offset. Correspondingly, determining the start time of the periodic transmission system information based on a certain moment (including the start time) within the first cycle is similar and will not be elaborated further for simplicity.

[0101] In the embodiments of this application, the method for determining the first time domain offset is not limited. In some implementations, the first time domain offset may be determined based on one or more of the following: predefined information, preconfiguration information, and configuration information sent by the network device.

[0102] For ease of understanding, the following describes, with reference to Figure 8, the scheme for determining the start time of sending system information based on the first cycle in the embodiments of this application, wherein the first cycle is SI change cycle 1.

[0103] Referring to Figure 8, if the terminal device does not receive the first indication information and / or the first configuration information, and the terminal device receives k SSB , where k SSB The value of indicates that when SIB1 is periodically transmitted within the cell, the terminal device can determine that the network device enters Cell A state starting from T0. Assuming the first parameter is transmitted in SI change cycle 1, in one implementation, T0 can be the end time of the SI change cycle. In another implementation, T0 can be obtained by taking the end time of the SI change cycle as the starting time and then applying a first time-domain offset.

[0104] In some other implementations, the transmission resources corresponding to the first parameter are within the first time window, and accordingly, the start time of sending system information based on the period is determined based on the first time window.

[0105] In some implementations, the first time window can be one of one or more time windows included in the system information change cycle.

[0106] In this application embodiment, the scheme for determining the start time based on a first time window is not limited. In some implementations, determining the start time based on a first time window may include determining the start time for periodically transmitting system information based on the end time of the first time window. In other implementations, determining the start time based on a first time window may include determining the start time for periodically transmitting system information based on the start time of the first time window. Of course, in this application embodiment, determining the start time based on a first time window may include determining the start time for periodically transmitting system information based on a certain moment within the first time window.

[0107] Furthermore, in this embodiment, determining the start time of the periodically transmitted system information based on the end time of the first time window can include using the end time of the first time window as the start time of the periodically transmitted system information, or using the end time of the first time window as the start time and obtaining the start time of the periodically transmitted system information after a first time domain offset. Correspondingly, determining the start time of the periodically transmitted system information based on a certain moment (including the start time) within the first time window is similar, and for simplicity, will not be elaborated further.

[0108] In the embodiments of this application, the method for determining the first time domain offset is not limited. In some implementations, the first time domain offset may be determined based on one or more of the following: predefined information, preconfiguration information, and configuration information sent by the network device.

[0109] For ease of understanding, the following describes, with reference to Figure 9, the scheme for determining the start time of periodically transmitting system information based on a first time window in the embodiments of this application, wherein the first time window is SI window 3.

[0110] Referring to Figure 9, if the terminal device does not receive the first indication information and / or the first configuration information, and the terminal device receives k SSB , where k SSB The value of indicates that when SIB1 is periodically transmitted within the cell, the terminal device can determine that the network device enters Cell A state starting from T0. Assuming the first parameter is transmitted in SI window 3 within SI change cycle 1, in one implementation, T0 can be the end time of SI window 3. In another implementation, T0 can be obtained by taking the end time of SI window 3 as the starting time and then applying a first time-domain offset.

[0111] In some other implementations, the transmission resource corresponding to the first parameter is the first time domain resource. The start time of sending system information based on the period is determined based on the first time domain resource. The first time domain resource can be, for example, the time domain resource located within the time window as described above. For related information, please refer to the above text.

[0112] In this embodiment, determining the start time of periodically transmitting system information based on the first time-domain resource may include using the first time-domain resource as the start time of the periodically transmitted system information, or using the first time-domain resource as the starting time and obtaining the start time of the periodically transmitted system information after a first time-domain offset. In this embodiment, the method for determining the first time-domain offset is not limited. In some implementations, the first time-domain offset may be determined based on one or more of the following: predefined information, pre-configured information, and configuration information sent by the network device.

[0113] For ease of understanding, the following describes, with reference to Figure 10, the scheme for determining the start time of periodically transmitting system information based on the first time domain resource in the embodiment of this application, wherein the first time domain resource is the second time domain resource in SI window 3 of SI change cycle 1.

[0114] Taking time-domain resources as time slots as an example, as shown in Figure 10, if the terminal device does not receive the first indication information and / or the first configuration information, and the terminal device receives k SSB , where k SSB The value of indicates that when SIB1 is periodically transmitted within the cell, the terminal device can determine that the network device enters Cell A state starting from T0. Assuming the first parameter is transmitted in the second time-domain resource within SI window 3 of SI change cycle 1, in one implementation, T0 can be the time corresponding to the second time-domain resource. In another implementation, T0 can be obtained by taking the time corresponding to the second time-domain resource as the starting time and then applying a first time-domain offset.

[0115] Case 3: If the terminal device does not receive the first instruction information, but receives the first configuration information and the value of the first parameter is within the range of the second value, then the terminal device can determine that the system information is sent in a request-based manner.

[0116] For example, when a terminal device is not camped on a serving cell, it does not receive any short messages from that cell. However, the terminal device can obtain the UL WUS configuration of the non-camped cell from other cells. In this case, when the terminal device performs cell reselection on the non-camped cell, if the terminal device obtains the MIB, and k in the MIB... SSB The value indicates that there is no SIB1 transmission in this non-resident cell (i.e., k). SSB Invalid k SSBIf the terminal device determines that the non-resident cell is in NES state, then the terminal device will determine that the non-resident cell is in NES state.

[0117] The foregoing section described the scheme for determining the system information transmission method in the embodiments of this application. The following section describes the scheme for determining the parameters for receiving system information in the embodiments of this application.

[0118] In some scenarios, if the terminal device receives the first indication information and the first parameter, and the value of the first parameter corresponds to the second value range (corresponding to the scheme of case 1), then the first indication information is used to indicate that the parameter used to obtain system information remains unchanged. The above method also includes: within the first period, the terminal device receives system information based on the parameter for obtaining system information, and the parameter for obtaining system information is obtained by the terminal device before receiving the first indication information.

[0119] In some implementations, the parameters for receiving system information are used to indicate the transmission resources of CORESET#0 and / or the transmission resources of search space#0.

[0120] In some implementations, the first indication information is carried in the paging message, and / or the first parameter is carried in the MIB.

[0121] For example, when a terminal device receives a short message indicating a SI change, it will obtain the MIB for the next SI change cycle. At this time, the terminal device can obtain k from the MIB. SSB Even if k is obtained SSB This indicates that no SIB1 is being transmitted within the cell, but the terminal device still assumes that SIB1 is periodically broadcast during SI changes. In this case, the terminal device may assume that the CORESET and search space used to monitor the Type 0 PDCCH CSS (i.e., CORESET#0 and search space #0) are the same as the CORESET and search space #0 before the short message was received. Alternatively, the terminal device may also assume that the CORESET#0 position is the same as the CORESET#0 position determined before the short message was received.

[0122] In some other implementations, if the terminal device receives the first indication information and the first parameter, and the value of the first parameter corresponds to the second value range (corresponding to the scheme of case 1), then the first indication information is used to indicate the parameter for obtaining system information. The above method also includes: within the first period, the terminal device receives system information based on the parameter for obtaining system information indicated by the first indication information.

[0123] In some implementations, the parameters for obtaining system information indicated by the first indication information are different from the parameters for obtaining system information received by the terminal device from the MIB during the first cycle.

[0124] In some implementations, the parameters for receiving system information may include one or more of the following: a first parameter, the transmission resources of CORESET#0, and the transmission resources of search space #0.

[0125] For example, suppose the terminal device obtains the first k from the MIB in the first cycle. SSB The first CORESET#0, the first SS#0, and the terminal device receives a short message from the network device indicating a system information change, wherein the short message is configured with the second k SSB Second CORESET#0, second SS#0. Accordingly, the terminal device can [follow the second k]. SSB CORESET#0, SS#0 acquires SIB1 in the first cycle.

[0126] In some implementations, if the system information is sent periodically and the network device supports sending system information based on requests, the above method further includes: the terminal device determining whether to obtain the first configuration information.

[0127] For example, suppose the serving cell is in Cell A state and that cell provides an SIB containing WUS configuration. When the terminal device determines that the cell is in Cell A state, the terminal device can decide whether to obtain the SIB to obtain the WUS configuration.

[0128] In some implementations, the first indication information is used to indicate whether the first configuration information acquired before receiving the first indication information is valid. For example, when the terminal device receives a short message indicating a change in the SI, the short message may also indicate whether a dedicated SIB (as an example of the first configuration information) sent before the short message can be reused.

[0129] The method embodiments of this application have been described in detail above with reference to Figures 1 to 10. The apparatus embodiments of this application will be described in detail below with reference to Figures 11 to 13. It should be understood that the descriptions of the method embodiments correspond to the descriptions of the apparatus embodiments; therefore, any parts not described in detail can be referred to the preceding method embodiments.

[0130] Figure 11 is a schematic diagram of a terminal device according to an embodiment of this application. The terminal device 1100 shown in Figure 11 includes a receiving unit 1110.

[0131] The receiving unit 1110 is used to receive first information sent by the network device, the first information being used to determine whether to periodically send system information or to send system information based on a request.

[0132] In some implementations, the first information is used to determine the state of the network device, and the state of the network device is used to determine the periodic transmission of system information or the request-based transmission of system information.

[0133] In some implementations, the first information includes one or more of the following: first indication information, which is related to system information updates; a first parameter, the value of which is used to determine whether the network periodically sends the system information; and first configuration information, which is used to configure the resources of the first request, the first request being used to request the sending of the system information.

[0134] In some implementations, the value of the first parameter is used to indicate one or more of the following: whether the periodically transmitted system information is transmitted within the cell; whether a corresponding control resource set exists for the SSB; and the value of the first parameter is used to indicate the frequency domain offset between the SSB and the control resource set, wherein the control resource set is used for scheduling information for transmitting the system information.

[0135] In some implementations, if the terminal device does not receive the first indication information and / or the first configuration information, and the terminal device receives the first parameter, and the value of the first parameter belongs to a first value range, the terminal device further includes: a first processing unit, used to determine that the system information is sent in the manner of periodically sending system information.

[0136] In some implementations, if the terminal device receives the first indication information, the first configuration information, and the first parameter, and the value of the first parameter belongs to the second value range, the terminal device further includes: a second processing unit, used to determine that the system information is sent in the manner of sending system information based on a request.

[0137] In some implementations, the start time for sending system information based on the request is determined based on the transmission resources corresponding to the first configuration information, or the start time for periodically sending system information is determined based on the transmission resources corresponding to the first parameter.

[0138] In some implementations, the transmission resources corresponding to the first configuration information are within a first period, and the start time for sending system information based on the request is determined based on the first period; or the transmission resources corresponding to the first parameter are within a first period, and the start time for periodically sending system information is determined based on the first period.

[0139] In some implementations, the start time of sending system information based on the request is determined based on the end time of the first period, or the start time of periodically sending system information is determined based on the end time of the first period.

[0140] In some implementations, the first cycle includes the system message update cycle.

[0141] In some implementations, the transmission resource corresponding to the first configuration information is a first time-domain resource, and the start time of sending system information based on the request is determined based on the first time-domain resource; or the transmission resource corresponding to the first parameter is a first time-domain resource, and the start time of periodically sending system information is determined based on the first time-domain resource.

[0142] In some implementations, the first time-domain resource is a time slot.

[0143] In some implementations, the transmission resources corresponding to the first configuration information are within a first time window, which is a time window used for transmitting the system information. The start time for sending system information based on a request is determined based on the first time window.

[0144] In some implementations, the first time window is one of one or more time windows contained in the first period.

[0145] In some implementations, the first parameter and / or the first configuration information are transmitted within a first cycle, and the transmission time of the first indication information is prior to the first cycle.

[0146] In some implementations, the first indication information is used to indicate that the parameters used to obtain the system information remain unchanged. The terminal device further includes: during the first period, a third processing unit, used to receive the system information based on the parameters for obtaining the system information, wherein the parameters for obtaining the system information are obtained by the terminal device before receiving the first indication information.

[0147] In some implementations, the first indication information is used to indicate parameters for obtaining the system information, and the terminal device further includes: during the first period, a fourth processing unit, used to receive the system information based on the parameters for obtaining the system information.

[0148] In some implementations, the parameters for obtaining the system information indicated by the first indication information are different from the parameters for obtaining the system information received by the terminal device from the MIB during the first period.

[0149] In some implementations, the parameters used to obtain the system information are used to indicate one or more of the following: a first parameter; a set of control resources for obtaining the system information; and a search space for obtaining the system information.

[0150] In some implementations, the first indication information is carried in a paging message, and / or the first parameter is carried in a MIB.

[0151] In some implementations, if the system information is sent periodically and the network device supports sending the system information based on a request, the terminal device further includes: a fifth processing unit, used to determine whether to obtain the first configuration information.

[0152] In some implementations, the first indication information is used to indicate whether the first configuration information obtained before receiving the first indication information is valid.

[0153] In some implementations, the first indication information includes a short message indicating a change in system information.

[0154] In some implementations, the first value range of the first parameter does not overlap with the second value range of the first parameter.

[0155] In some implementations, the second value range satisfies one of the following: the value of the first parameter corresponding to frequency band FR1 is greater than 23; the value of the first parameter corresponding to frequency band FR2 is greater than 11.

[0156] In some implementations, the first value range satisfies one of the following: the value of the first parameter corresponding to frequency band FR1 is less than or equal to 23; the value of the first parameter corresponding to frequency band FR2 is less than or equal to 11.

[0157] In some implementations, the system information is carried in the SIB.

[0158] Figure 12 is a schematic diagram of a network device according to an embodiment of this application. The network device 1200 shown in Figure 12 includes: a transmitting unit 1210.

[0159] The sending unit 1210 is used to send first information to the terminal device, the first information being used to determine whether to periodically send system information or to send system information based on a request.

[0160] In some implementations, the first information is used to determine the state of the network device, and the state of the network device is used to determine the periodic transmission of system information or the request-based transmission of system information.

[0161] In some implementations, the first information includes one or more of the following: first indication information, which is related to system information updates; a first parameter, the value of which is used to determine whether the network periodically sends the system information; and first configuration information, which is used to configure the resources of the first request, the first request being used to request the sending of the system information.

[0162] In some implementations, the value of the first parameter is used to indicate one or more of the following: whether the periodically transmitted system information is transmitted within the cell; whether a corresponding control resource set exists for the SSB; and the value of the first parameter is used to indicate the frequency domain offset between the SSB and the control resource set, wherein the control resource set is used for scheduling information for transmitting the system information.

[0163] In some implementations, if the terminal device does not receive the first indication information and / or the first configuration information, and the terminal device receives the first parameter, and the value of the first parameter falls within a first value range, then the system information is sent in the form of periodic system information transmission.

[0164] In some implementations, if the terminal device receives the first indication information, the first configuration information, and the first parameter, and the value of the first parameter falls within the second value range, then the method of sending the system information is determined to be sending system information based on a request.

[0165] In some implementations, the start time for sending system information based on the request is determined based on the transmission resources corresponding to the first configuration information, or the start time for periodically sending system information is determined based on the transmission resources corresponding to the first parameter.

[0166] In some implementations, the transmission resources corresponding to the first configuration information are within a first period, and the start time for sending system information based on the request is determined based on the first period; or the transmission resources corresponding to the first parameter are within a first period, and the start time for periodically sending system information is determined based on the first period.

[0167] In some implementations, the start time of sending system information based on the request is determined based on the end time of the first period, or the start time of periodically sending system information is determined based on the end time of the first period.

[0168] In some implementations, the first cycle includes the system message update cycle.

[0169] In some implementations, the transmission resource corresponding to the first configuration information is a first time-domain resource, and the start time of sending system information based on the request is determined based on the first time-domain resource; or the transmission resource corresponding to the first parameter is a first time-domain resource, and the start time of periodically sending system information is determined based on the first time-domain resource.

[0170] In some implementations, the first time-domain resource is a time slot.

[0171] In some implementations, the transmission resources corresponding to the first configuration information are within a first time window, which is a time window used for transmitting the system information. The start time for sending system information based on a request is determined based on the first time window.

[0172] In some implementations, the first time window is one of one or more time windows contained in the first period.

[0173] In some implementations, the first parameter and / or the first configuration information are transmitted within a first cycle, and the transmission time of the first indication information is prior to the first cycle.

[0174] In some implementations, the parameters for obtaining the system information indicated by the first indication information are different from the parameters for obtaining the system information received by the terminal device from the MIB during the first period.

[0175] In some implementations, the parameters used to obtain the system information are used to indicate one or more of the following: a first parameter; a set of control resources for obtaining the system information; and a search space for obtaining the system information.

[0176] In some implementations, the first indication information is carried in a paging message, and / or the first parameter is carried in a MIB.

[0177] In some implementations, the first indication information is used to indicate whether the first configuration information obtained before receiving the first indication information is valid.

[0178] In some implementations, the first indication information includes a short message indicating a change in system information.

[0179] In some implementations, the first value range of the first parameter does not overlap with the second value range of the first parameter.

[0180] In some implementations, the second value range satisfies one of the following: the value of the first parameter corresponding to frequency band FR1 is greater than 23; the value of the first parameter corresponding to frequency band FR2 is greater than 11.

[0181] In some implementations, the first value range satisfies one of the following: the value of the first parameter corresponding to frequency band FR1 is less than or equal to 23; the value of the first parameter corresponding to frequency band FR2 is less than or equal to 11.

[0182] In some implementations, the system information is carried in the SIB.

[0183] In an optional embodiment, the receiving unit 1110 may be a transceiver 1330. The terminal device 1100 may also include a processor 1310 and a memory 1320, as shown in FIG13.

[0184] In an optional embodiment, the transmitting unit 1210 may be a transceiver 1330. The network device 1200 may also include a processor 1310 and a memory 1320, as shown in FIG13.

[0185] Figure 13 is a schematic structural diagram of a communication device according to an embodiment of this application. The dashed lines in Figure 13 indicate that the unit or module is optional. This device 1300 can be used to implement the methods described in the above method embodiments. Device 1300 can be a chip, a terminal device, or a network device.

[0186] Apparatus 1300 may include one or more processors 1310. The processor 1310 may support apparatus 1300 in implementing the methods described in the preceding method embodiments. The processor 1310 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be 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. The general-purpose processor may be a microprocessor or any conventional processor.

[0187] The apparatus 1300 may further include one or more memories 1320. The memories 1320 store a program that can be executed by the processor 1310, causing the processor 1310 to perform the methods described in the preceding method embodiments. The memories 1320 may be independent of the processor 1310 or integrated within the processor 1310.

[0188] The device 1300 may also include a transceiver 1330. The processor 1310 can communicate with other devices or chips via the transceiver 1330. For example, the processor 1310 can send and receive data with other devices or chips via the transceiver 1330.

[0189] This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to a terminal or network device provided in this application, and the program causes a computer to execute the methods performed by the terminal or network device in various embodiments of this application.

[0190] This application also provides a computer program product. The computer program product includes a program. This computer program product can be applied to a terminal or network device provided in this application embodiment, and the program causes a computer to execute the methods performed by the terminal or network device in various embodiments of this application.

[0191] This application also provides a computer program. This computer program can be applied to the terminal or network device provided in this application, and the computer program causes the computer to execute the methods performed by the terminal or network device in various embodiments of this application.

[0192] It should be understood that the terms "system" and "network" in this application can be used interchangeably. Furthermore, the terminology used in this application is only for explaining specific embodiments of the application and is not intended to limit the application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. In addition, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0193] In the embodiments of this application, the term "instruction" can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0194] In the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0195] In the embodiments of this application, the term "correspondence" can indicate a direct or indirect correspondence between two things, or an association between two things, or a relationship such as instruction and being instructed, configuration and being configured.

[0196] In this application embodiment, "predefined" or "preconfigured" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0197] In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems. This application does not limit this.

[0198] In the embodiments of this application, the term "and / or" 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, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0199] In the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0200] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0201] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0202] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0203] 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. 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 read or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs, DVDs) or semiconductor media (e.g., solid-state disks, SSDs), etc.

[0204] 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 technical scope 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 wireless communication, characterized in that, include: The terminal device receives first information sent by the network device, the first information being used to determine whether to periodically send system information or to send system information based on a request.

2. The method as described in claim 1, characterized in that, The first information is used to determine the state of the network device, and the state of the network device is used to determine the periodic transmission of system information or the request-based transmission of system information.

3. The method as described in claim 1 or 2, characterized in that, The first information includes one or more of the following: The first instruction information is related to system information updates; The first parameter, the value of which is used to determine whether the network periodically sends the system information; The first configuration information is used to configure the resources of the first request, and the first request is used to request the sending of the system information.

4. The method as described in claim 3, characterized in that, The value of the first parameter is used to indicate one or more of the following: Whether the periodically sent system information is transmitted within the cell; Does the SSB have a corresponding set of control resources? The value of the first parameter is used to indicate the frequency domain offset between the SSB and the control resource set, wherein the control resource set is used to transmit scheduling information of the system information.

5. The method as described in claim 3 or 4, characterized in that, If the terminal device does not receive the first indication information and / or the first configuration information, and the terminal device receives the first parameter, and the value of the first parameter falls within a first value range, the method further includes: The terminal device determines that the system information is sent periodically.

6. The method according to any one of claims 3-5, characterized in that, If the terminal device receives the first indication information, the first configuration information, and the first parameter, and the value of the first parameter falls within the second value range, the method further includes: The terminal device determines that the system information is sent in the manner described by request.

7. The method according to any one of claims 1-6, characterized in that, The start time for sending system information based on the request is determined based on the transmission resources corresponding to the first configuration information, or The start time for periodically sending system information is determined based on the transmission resources corresponding to the first parameter.

8. The method as described in claim 7, characterized in that, The transmission resources corresponding to the first configuration information are within the first period, and the start time of sending system information based on the request is determined based on the first period, or The transmission resources corresponding to the first parameter are determined based on the first period when the periodic transmission system information is sent within the first period.

9. The method as described in claim 8, characterized in that, The start time for sending system information based on the request is determined based on the end time of the first period, or The start time for periodically sending system information is determined based on the end time of the first period.

10. The method as described in claim 8 or 9, characterized in that, The first cycle includes the system message update cycle.

11. The method as described in claim 7, characterized in that, The transmission resource corresponding to the first configuration information is the first time domain resource, and the start time of sending system information based on the request is determined based on the first time domain resource, or The transmission resource corresponding to the first parameter is the first time domain resource, and the start time of the periodic transmission of system information is determined based on the first time domain resource.

12. The method as described in claim 11, characterized in that, The first time-domain resource is a time slot.

13. The method as described in claim 7, characterized in that, The transmission resources corresponding to the first configuration information are within a first time window, which is a time window used to transmit the system information. The start time for sending system information based on a request is determined based on the first time window.

14. The method as described in claim 13, characterized in that, The first time window is one of one or more time windows contained in the first period.

15. The method according to any one of claims 7-14, characterized in that, The first parameter and / or the first configuration information are transmitted within the first cycle, and the transmission time of the first indication information is before the first cycle.

16. The method as described in claim 15, characterized in that, The first indication information is used to indicate that the parameters used to obtain the system information remain unchanged, and the method further includes: During the first cycle, the terminal device receives the system information based on the parameters for obtaining the system information, wherein the parameters for obtaining the system information are obtained by the terminal device before receiving the first indication information.

17. The method as described in claim 15, characterized in that, The first indication information is used to indicate parameters for obtaining the system information, and the method further includes: During the first cycle, the terminal device receives the system information based on the parameters used to acquire the system information.

18. The method as described in claim 17, characterized in that, The parameters for obtaining the system information indicated by the first indication information are different from the parameters for obtaining the system information received by the terminal device from the MIB during the first period.

19. The method according to any one of claims 16-18, characterized in that, The parameters used to obtain the system information are used to indicate one or more of the following: a first parameter; a set of control resources for obtaining the system information; and a search space for obtaining the system information.

20. The method according to any one of claims 16-19, characterized in that, The first indication information is carried in the paging message, and / or the first parameter is carried in the MIB.

21. The method according to any one of claims 3-20, characterized in that, If the system information is sent periodically, and the network device supports sending the system information based on a request, the method further includes: The terminal device determines whether to obtain the first configuration information.

22. The method according to any one of claims 3-21, characterized in that, The first indication information is used to indicate whether the first configuration information obtained before receiving the first indication information is valid.

23. The method according to any one of claims 3-22, characterized in that, The first indication information includes a short message used to indicate changes in system information.

24. The method as described in claim 6, characterized in that, The first value range of the first parameter does not overlap with the second value range of the first parameter.

25. The method as described in claim 24, characterized in that, The second value range satisfies one of the following: The value of the first parameter corresponding to frequency band FR1 is greater than 23; The first parameter of the corresponding frequency band FR2 has a value greater than 11.

26. The method as described in claim 24 or 25, characterized in that, The first value range satisfies one of the following: The value of the first parameter corresponding to frequency band FR1 is less than or equal to 23; The first parameter of the corresponding frequency band FR2 is less than or equal to 11.

27. The method according to any one of claims 1-26, characterized in that, The system information is carried in the SIB.

28. A method for wireless communication, characterized in that, include: The network device sends first information to the terminal device, the first information being used to determine whether to periodically send system information or to send system information based on a request.

29. The method as described in claim 28, characterized in that, The first information is used to determine the state of the network device, and the state of the network device is used to determine the periodic transmission of system information or the request-based transmission of system information.

30. The method as described in claim 28 or 29, characterized in that, The first information includes one or more of the following: The first instruction information is related to system information updates; The first parameter, the value of which is used to determine whether the network periodically sends the system information; The first configuration information is used to configure the resources of the first request, and the first request is used to request the sending of the system information.

31. The method as described in claim 30, characterized in that, The value of the first parameter is used to indicate one or more of the following: Whether the periodically sent system information is transmitted within the cell; Does the SSB have a corresponding set of control resources? The value of the first parameter is used to indicate the frequency domain offset between the SSB and the control resource set, wherein the control resource set is used to transmit scheduling information of the system information.

32. The method as described in claim 30 or 31, characterized in that, If the terminal device does not receive the first indication information and / or the first configuration information, and the terminal device receives the first parameter, and the value of the first parameter is within the first value range, then the system information is sent in the manner of periodically sending system information.

33. The method according to any one of claims 30-32, characterized in that, If the terminal device receives the first indication information, the first configuration information, and the first parameter, and the value of the first parameter falls within the second value range, then the method of sending the system information is determined to be sending system information based on a request.

34. The method according to any one of claims 28-33, characterized in that, The start time for sending system information based on the request is determined based on the transmission resources corresponding to the first configuration information, or The start time for periodically sending system information is determined based on the transmission resources corresponding to the first parameter.

35. The method as described in claim 34, characterized in that, The transmission resources corresponding to the first configuration information are within the first period, and the start time of sending system information based on the request is determined based on the first period, or The transmission resources corresponding to the first parameter are determined based on the first period when the periodic transmission system information is sent within the first period.

36. The method as described in claim 35, characterized in that, The start time for sending system information based on the request is determined based on the end time of the first period, or The start time for periodically sending system information is determined based on the end time of the first period.

37. The method as described in claim 35 or 36, characterized in that, The first cycle includes the system message update cycle.

38. The method as described in claim 34, characterized in that, The transmission resource corresponding to the first configuration information is the first time domain resource, and the start time of sending system information based on the request is determined based on the first time domain resource, or The transmission resource corresponding to the first parameter is the first time domain resource, and the start time of the periodic transmission of system information is determined based on the first time domain resource.

39. The method as described in claim 38, characterized in that, The first time-domain resource is a time slot.

40. The method as described in claim 34, characterized in that, The transmission resources corresponding to the first configuration information are within a first time window, which is a time window used to transmit the system information. The start time for sending system information based on a request is determined based on the first time window.

41. The method as described in claim 40, characterized in that, The first time window is one of one or more time windows contained in the first period.

42. The method according to any one of claims 34-41, characterized in that, The first parameter and / or the first configuration information are transmitted within the first cycle, and the transmission time of the first indication information is before the first cycle.

43. The method as described in claim 42, characterized in that, The parameters for obtaining the system information indicated by the first indication information are different from the parameters for obtaining the system information received by the terminal device from the MIB during the first period.

44. The method as described in claim 43, characterized in that, The parameters used to obtain the system information are used to indicate one or more of the following: a first parameter; a set of control resources for obtaining the system information; and a search space for obtaining the system information.

45. The method as described in claim 43 or 44, characterized in that, The first indication information is carried in the paging message, and / or the first parameter is carried in the MIB.

46. ​​The method according to any one of claims 30-45, characterized in that, The first indication information is used to indicate whether the first configuration information obtained before receiving the first indication information is valid.

47. The method according to any one of claims 30-46, characterized in that, The first indication information includes a short message used to indicate changes in system information.

48. The method as described in claim 33, characterized in that, The first value range of the first parameter does not overlap with the second value range of the first parameter.

49. The method as described in claim 48, characterized in that, The second value range satisfies one of the following: The value of the first parameter corresponding to frequency band FR1 is greater than 23; The first parameter of the corresponding frequency band FR2 has a value greater than 11.

50. The method as described in claim 48 or 49, characterized in that, The first value range satisfies one of the following: The value of the first parameter corresponding to frequency band FR1 is less than or equal to 23; The first parameter of the corresponding frequency band FR2 is less than or equal to 11.

51. The method according to any one of claims 28-50, characterized in that, The system information is carried in the SIB.

52. A terminal device, characterized in that, include: The receiving unit is used to receive first information sent by the network device, the first information being used to determine whether to periodically send system information or to send system information based on a request.

53. The terminal device as described in claim 52, characterized in that, The first information is used to determine the state of the network device, and the state of the network device is used to determine the periodic transmission of system information or the request-based transmission of system information.

54. The terminal device as described in claim 52 or 53, characterized in that, The first information includes one or more of the following: The first instruction information is related to system information updates; The first parameter, the value of which is used to determine whether the network periodically sends the system information; The first configuration information is used to configure the resources of the first request, and the first request is used to request the sending of the system information.

55. The terminal device as described in claim 54, characterized in that, The value of the first parameter is used to indicate one or more of the following: Whether the periodically sent system information is transmitted within the cell; Does the SSB have a corresponding set of control resources? The value of the first parameter is used to indicate the frequency domain offset between the SSB and the control resource set, wherein the control resource set is used to transmit scheduling information of the system information.

56. The terminal device as described in claim 54 or 55, characterized in that, If the terminal device does not receive the first indication information and / or the first configuration information, and the terminal device receives the first parameter, and the value of the first parameter falls within a first value range, the terminal device further includes: The first processing unit is used to determine that the system information is sent in a periodic manner.

57. The terminal device as described in any one of claims 54-56, characterized in that, If the terminal device receives the first indication information, the first configuration information, and the first parameter, and the value of the first parameter falls within the second value range, the terminal device further includes: The second processing unit is used to determine that the system information is sent in the manner described by request-based system information transmission.

58. The terminal device as described in any one of claims 52-57, characterized in that, The start time for sending system information based on the request is determined based on the transmission resources corresponding to the first configuration information, or The start time for periodically sending system information is determined based on the transmission resources corresponding to the first parameter.

59. The terminal device as described in claim 58, characterized in that, The transmission resources corresponding to the first configuration information are within the first period, and the start time of sending system information based on the request is determined based on the first period, or The transmission resources corresponding to the first parameter are determined based on the first period when the periodic transmission system information is sent within the first period.

60. The terminal device as described in claim 59, characterized in that, The start time for sending system information based on the request is determined based on the end time of the first period, or The start time for periodically sending system information is determined based on the end time of the first period.

61. The terminal device as described in claim 59 or 60, characterized in that, The first cycle includes the system message update cycle.

62. The terminal device as described in claim 58, characterized in that, The transmission resource corresponding to the first configuration information is the first time domain resource, and the start time of sending system information based on the request is determined based on the first time domain resource, or The transmission resource corresponding to the first parameter is the first time domain resource, and the start time of the periodic transmission of system information is determined based on the first time domain resource.

63. The terminal device as described in claim 62, characterized in that, The first time-domain resource is a time slot.

64. The terminal device as described in claim 58, characterized in that, The transmission resources corresponding to the first configuration information are within a first time window, which is a time window used to transmit the system information. The start time for sending system information based on a request is determined based on the first time window.

65. The terminal device as described in claim 64, characterized in that, The first time window is one of one or more time windows contained in the first period.

66. The terminal device as described in any one of claims 58-65, characterized in that, The first parameter and / or the first configuration information are transmitted within the first cycle, and the transmission time of the first indication information is before the first cycle.

67. The terminal device as described in claim 66, characterized in that, The first indication information is used to indicate that the parameters used to obtain the system information remain unchanged, and the terminal device further includes: During the first cycle, the third processing unit is used to receive the system information based on the parameters for obtaining the system information, wherein the parameters for obtaining the system information are obtained by the terminal device before receiving the first indication information.

68. The terminal device as described in claim 66, characterized in that, The first indication information is used to indicate parameters for obtaining the system information, and the terminal device further includes: During the first cycle, the fourth processing unit is used to receive the system information based on the parameters for obtaining the system information.

69. The terminal device as described in claim 68, characterized in that, The parameters for obtaining the system information indicated by the first indication information are different from the parameters for obtaining the system information received by the terminal device from the MIB during the first period.

70. The terminal device as described in any one of claims 67-69, characterized in that, The parameters used to obtain the system information are used to indicate one or more of the following: a first parameter; a set of control resources for obtaining the system information; and a search space for obtaining the system information.

71. The terminal device as described in any one of claims 67-70, characterized in that, The first indication information is carried in the paging message, and / or the first parameter is carried in the MIB.

72. The terminal device as described in any one of claims 54-71, characterized in that, If the system information is sent periodically, and the network device supports sending the system information based on a request, the terminal device further includes: The fifth processing unit is used to determine whether to obtain the first configuration information.

73. The terminal device as described in any one of claims 54-72, characterized in that, The first indication information is used to indicate whether the first configuration information obtained before receiving the first indication information is valid.

74. The terminal device as described in any one of claims 54-73, characterized in that, The first indication information includes a short message used to indicate changes in system information.

75. The terminal device as described in claim 57, characterized in that, The first value range of the first parameter does not overlap with the second value range of the first parameter.

76. The terminal device as described in claim 75, characterized in that, The second value range satisfies one of the following: The value of the first parameter corresponding to frequency band FR1 is greater than 23; The first parameter of the corresponding frequency band FR2 has a value greater than 11.

77. The terminal device as described in claim 75 or 76, characterized in that, The first value range satisfies one of the following: The value of the first parameter corresponding to frequency band FR1 is less than or equal to 23; The first parameter of the corresponding frequency band FR2 is less than or equal to 11.

78. The terminal device as described in any one of claims 52-77, characterized in that, The system information is carried in the SIB.

79. A network device, characterized in that, include: The sending unit is used to send first information to the terminal device, wherein the first information is used to determine whether to periodically send system information or to send system information based on a request.

80. The network device as described in claim 79, characterized in that, The first information is used to determine the state of the network device, and the state of the network device is used to determine the periodic transmission of system information or the request-based transmission of system information.

81. The network device as described in claim 79 or 80, characterized in that, The first information includes one or more of the following: The first instruction information is related to system information updates; The first parameter, the value of which is used to determine whether the network periodically sends the system information; The first configuration information is used to configure the resources of the first request, and the first request is used to request the sending of the system information.

82. The network device as described in claim 81, characterized in that, The value of the first parameter is used to indicate one or more of the following: Whether the periodically sent system information is transmitted within the cell; Does the SSB have a corresponding set of control resources? The value of the first parameter is used to indicate the frequency domain offset between the SSB and the control resource set, wherein the control resource set is used to transmit scheduling information of the system information.

83. The network device as described in claim 81 or 82, characterized in that, If the terminal device does not receive the first indication information and / or the first configuration information, and the terminal device receives the first parameter, and the value of the first parameter is within the first value range, then the system information is sent in the manner of periodically sending system information.

84. The network device as described in any one of claims 81-83, characterized in that, If the terminal device receives the first indication information, the first configuration information, and the first parameter, and the value of the first parameter falls within the second value range, then the method of sending the system information is determined to be sending system information based on a request.

85. The network device as described in any one of claims 79-84, characterized in that, The start time for sending system information based on the request is determined based on the transmission resources corresponding to the first configuration information, or The start time for periodically sending system information is determined based on the transmission resources corresponding to the first parameter.

86. The network device as described in claim 85, characterized in that, The transmission resources corresponding to the first configuration information are within the first period, and the start time of sending system information based on the request is determined based on the first period, or The transmission resources corresponding to the first parameter are determined based on the first period when the periodic transmission system information is sent within the first period.

87. The network device as described in claim 86, characterized in that, The start time for sending system information based on the request is determined based on the end time of the first period, or The start time for periodically sending system information is determined based on the end time of the first period.

88. The network device as described in claim 86 or 87, characterized in that, The first cycle includes the system message update cycle.

89. The network device as described in claim 85, characterized in that, The transmission resource corresponding to the first configuration information is the first time domain resource, and the start time of sending system information based on the request is determined based on the first time domain resource, or The transmission resource corresponding to the first parameter is the first time domain resource, and the start time of the periodic transmission of system information is determined based on the first time domain resource.

90. The network device as described in claim 89, characterized in that, The first time-domain resource is a time slot.

91. The network device as described in claim 85, characterized in that, The transmission resources corresponding to the first configuration information are within a first time window, which is a time window used to transmit the system information. The start time for sending system information based on a request is determined based on the first time window.

92. The network device as described in claim 91, characterized in that, The first time window is one of one or more time windows contained in the first period.

93. The network device as described in any one of claims 85-92, characterized in that, The first parameter and / or the first configuration information are transmitted within the first cycle, and the transmission time of the first indication information is before the first cycle.

94. The network device as described in claim 93, characterized in that, The parameters for obtaining the system information indicated by the first indication information are different from the parameters for obtaining the system information received by the terminal device from the MIB during the first period.

95. The network device as described in claim 94, characterized in that, The parameters used to obtain the system information are used to indicate one or more of the following: a first parameter; a set of control resources for obtaining the system information; and a search space for obtaining the system information.

96. The network device as described in claim 94 or 95, characterized in that, The first indication information is carried in the paging message, and / or the first parameter is carried in the MIB.

97. The network device as described in any one of claims 81-96, characterized in that, The first indication information is used to indicate whether the first configuration information obtained before receiving the first indication information is valid.

98. The network device as described in any one of claims 81-97, characterized in that, The first indication information includes a short message used to indicate changes in system information.

99. The network device as described in claim 84, characterized in that, The first value range of the first parameter does not overlap with the second value range of the first parameter.

100. The network device as described in claim 99, characterized in that, The second value range satisfies one of the following: The value of the first parameter corresponding to frequency band FR1 is greater than 23; The first parameter of the corresponding frequency band FR2 has a value greater than 11.

101. The network device as described in claim 99 or 100, characterized in that, The first value range satisfies one of the following: The value of the first parameter corresponding to frequency band FR1 is less than or equal to 23; The first parameter of the corresponding frequency band FR2 is less than or equal to 11.

102. The network device as described in any one of claims 79-101, characterized in that, The system information is carried in the SIB.

103. A terminal device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory stores a program, and the processor invokes the program in the memory and controls the transceiver to receive or send signals so that the terminal device performs the method as described in any one of claims 1-27.

104. A network device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory stores a program, and the processor invokes the program in the memory and controls the transceiver to receive or transmit signals so that the network device performs the method as described in any one of claims 28-51.

105. An apparatus, characterized in that, Includes a processor for calling a program from memory to cause the device to perform the method as described in any one of claims 1-51.

106. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1-51.

107. A computer-readable storage medium, characterized in that, It contains a program that causes a computer to perform the method as described in any one of claims 1-51.

108. A computer program product, characterized in that, Includes a program that causes a computer to perform the method as described in any one of claims 1-51.

109. A computer program, characterized in that, The computer program causes the computer to perform the method as described in any one of claims 1-51.

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