Wireless communication method, terminal device, and network device

Abstract

The present application provides a wireless communication method, a terminal device, and a network device. The method comprises: a terminal device determines a first uplink resource in a first cell; and the terminal device sends a first uplink channel / signal by means of the first uplink resource, the first uplink channel / signal being used for requesting to send a first system message. When the terminal device needs the first system message (for example, the terminal device needs to access a network), the terminal device can determine the first uplink resource for sending the first uplink channel / signal, so as to transmit the first uplink channel / signal to request a network device to send the first system message. The network device can also detect the first uplink channel / signal on the basis of the first uplink resource, so as to send the first system message. Therefore, on the basis of the present application, the transmission of the first system message can be requested at an appropriate time, thereby improving communication efficiency and reducing energy consumption.

Description

Wireless communication method, terminal device, and network device Technical Field

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

[0002] Network energy saving is of great significance for environmental protection and cost control. To achieve network energy saving, one network deployment method is to prevent network devices from transmitting first system messages when the network is idle. These first system messages may include common channels / signals such as synchronization signal / PBCH blocks (SSBs or SS / PBCH blocks) or system information broadcasts (SIBs) 1.

[0003] Summary of the Invention

[0004] The present application provides a wireless communication method, terminal device, and network device. Various aspects of the present application are described below.

[0005] In a first aspect, a method for wireless communication is provided, the method comprising: a terminal device determines a first uplink resource in a first cell; the terminal device sends a first uplink channel / signal through the first uplink resource, the first uplink channel / signal being used to request sending a first system message.

[0006] In a second aspect, a method for wireless communication is provided, the method comprising: a network device receives a first uplink channel / signal through a first uplink resource in a first cell, the first uplink channel / signal being used to request sending a first system message.

[0007] In a third aspect, a terminal device is provided, which includes: a determination unit for determining a first uplink resource in a first cell; a first sending unit for sending a first uplink channel / signal through the first uplink resource, and the first uplink channel / signal is used to request sending a first system message.

[0008] In a fourth aspect, a network device is provided, comprising: a detection unit, configured to detect a first uplink channel / signal through a first uplink resource in a first cell, wherein the first uplink channel / signal is used to request sending a first system message.

[0009] In a fifth aspect, a terminal device is provided, comprising a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory to execute the method described in the first aspect.

[0010] In a sixth aspect, a network device is provided, comprising a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory to execute the method described in the second aspect.

[0011] In a seventh aspect, a device is provided, comprising a processor, configured to call a program from a memory to execute the method described in the first aspect.

[0012] In an eighth aspect, a device is provided, comprising a processor, configured to call a program from a memory to execute the method described in the second aspect.

[0013] In a ninth aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the first aspect.

[0014] In a tenth aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the second aspect.

[0015] In an eleventh aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method described in the first aspect.

[0016] In a twelfth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method described in the second aspect.

[0017] In a thirteenth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method described in the first aspect.

[0018] In a fourteenth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method described in the second aspect.

[0019] In a fifteenth aspect, a computer program is provided, which enables a computer to execute the method described in the first aspect.

[0020] In a sixteenth aspect, a computer program is provided, which enables a computer to execute the method described in the second aspect.

[0021] When a terminal device requires a first system message (for example, the terminal device needs to access the network), the terminal device can determine a first uplink resource for transmitting a first uplink channel / signal, thereby transmitting the first uplink channel / signal to request the network device to transmit the first system message. The network device can detect the first uplink channel / signal based on the first uplink resource, thereby transmitting the first system message. Therefore, based on the present application, the first system message can be requested and transmitted at an appropriate time, thereby improving communication efficiency and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 1A-1C are exemplary diagrams of communication systems to which embodiments of the present application may be applied.

[0023] FIG2 is a schematic flowchart of a wireless communication method provided in an embodiment of the present application.

[0024] FIG3A and FIG3B are both diagrams illustrating an example of the relationship between a first downlink resource and a first uplink resource.

[0025] FIG4 is an example diagram of a second downlink resource.

[0026] FIG5A to FIG5C are examples of determining the time domain position of the first uplink resource based on SIB1 PDCCH configuration information.

[0027] FIG6 is a schematic structural diagram of a terminal device provided in an embodiment of the present application.

[0028] FIG7 is a schematic structural diagram of a network device provided in an embodiment of the present application.

[0029] FIG8 is a schematic structural diagram of the device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. With respect to the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, advanced long term evolution (LTE-A) system, new radio (NR) system, evolution system of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, non terrestrial network (NTN) system, universal mobile telecommunication system (UMTS), wireless local area network (WLAN), wireless fidelity (WLAN-based LTE) system. fidelity (WiFi), fifth-generation communication (5G) systems or other communication systems, such as future communication systems, such as sixth-generation (6G) mobile communication systems and beyond 5G (B5G) mobile communication systems.

[0032] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0033] The communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, and a standalone (SA) networking scenario.

[0034] The communication system in the embodiment of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as a dedicated spectrum.

[0035] The embodiments of the present application can be applied to NTN systems as well as terrestrial networks (TN) systems. As an example and not a limitation, NTN systems include NR-based NTN systems and IoT-based NTN systems.

[0036] In future evolved communication systems such as B5G or 6G, distributed multiple-input multiple-output (MIMO) scenarios and / or massive MIMO scenarios may also be included. The system corresponding to the distributed MIMO scenario can be called a distributed antenna system. The system corresponding to the massive MIMO scenario can be called a massive antenna matrix system. In some cases, the distributed antenna system and / or the massive antenna matrix system may also support cell-free or UE-centric networking scenarios. It should be understood that the embodiments of the present application are also applicable to these scenarios.

[0037] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, where the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0038] In an embodiment of the present application, the terminal device may be a station (STA) in a WLAN, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future-evolved public land mobile network (PLMN) network, etc.

[0039] In an embodiment of the present application, a terminal device may 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 connection capabilities, an in-vehicle device, etc. The terminal device in the embodiment of the present application may be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. Optionally, a UE may be used to act as a base station. For example, a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using sidelink signals. Cellular phones and smart home devices communicate with each other without relaying the communication signal through a base station.

[0040] In an embodiment of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0041] In the embodiments of the present application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc. The terminal device involved in the embodiments of the present application may also be referred to as a terminal, user equipment (UE), an access terminal device, a vehicle-mounted terminal, an industrial control terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE device, etc. The terminal device may also be fixed or mobile.

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

[0043] The network device in the embodiments of the present application may be a device for communicating with a terminal device, and may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station may broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. The base station may also refer to a communication module, modem or chip provided in the aforementioned device or apparatus. The base station may also be a mobile switching center and a device-to-device D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication device that performs the base station function, a network side device in a 6G network, a device that performs the base station function in a future communication system, etc. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network equipment.

[0044] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0045] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device includes a CU and a DU. The gNB may also include an AAU.

[0046] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.

[0047] As an example and not a limitation, in an embodiment of the present application, a network device may have a mobile feature, for example, the network device may be a mobile device. In some embodiments of the present application, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. In some embodiments of the present application, the network device may also be a base station set up in a location such as land or water.

[0048] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0049] For example, Figure 1A is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. As shown in Figure 1A, communication system 100 may include network device 110, which may be a device that communicates with terminal device 120 (or also referred to as a communication terminal or terminal). Network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices located within the coverage area.

[0050] Figure 1A exemplarily shows a network device and two terminal devices. In some embodiments of the present application, the communication system 100 may include multiple network devices and each network device may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0051] For example, FIG1B is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application. Referring to FIG1B , a terminal device 1101 and a satellite 1102 are included, and wireless communication can be performed between the terminal device 1101 and the satellite 1102. The network formed between the terminal device 1101 and the satellite 1102 can also be referred to as an NTN. In the architecture of the communication system shown in FIG1B , the satellite 1102 can have the function of a base station, and the terminal device 1101 and the satellite 1102 can communicate directly. In the system architecture, the satellite 1102 can be referred to as a network device. In some embodiments of the present application, a plurality of network devices 1102 may be included in the communication system, and each network device 1102 may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0052] For example, FIG1C is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application. Referring to FIG1C , it includes a terminal device 1201, a satellite 1202, and a base station 1203. Wireless communication can be performed between the terminal device 1201 and the satellite 1202, and communication can be performed between the satellite 1202 and the base station 1203. The network formed between the terminal device 1201, the satellite 1202, and the base station 1203 can also be referred to as an NTN. In the architecture of the communication system shown in FIG1C , the satellite 1202 may not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be transferred through the satellite 1202. In this system architecture, the base station 1203 can be referred to as a network device. In some embodiments of the present application, a plurality of network devices 1203 may be included in the communication system, and each network device 1203 may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0053] It should be noted that Figures 1A-1C are only examples of the system to which this application is applicable. Of course, the method shown in the embodiment of this application can also be applied to other systems, such as 5G communication systems, LTE communication systems, etc., and the embodiment of this application does not make specific limitations on this.

[0054] In some embodiments of the present application, the wireless communication system shown in Figures 1A-1C may also include other network entities such as a mobility management entity (MME) and an access and mobility management function (AMF), but the embodiments of the present application are not limited to this.

[0055] It should be understood that in the embodiments of the present application, a device having a communication function in a network / system may be referred to as a communication device. Taking the communication system 100 shown in FIG1A as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function. The network device 110 and the terminal device 120 may be the specific devices described above and will not be described in detail here. The communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in the embodiments of the present application.

[0056] For ease of understanding, some relevant technical knowledge involved in the embodiments of this application is first introduced. The following related technologies can be combined with the technical solutions of the embodiments of this application as optional solutions, and they all fall within the scope of protection of the embodiments of this application. The embodiments of this application include at least part of the following contents.

[0057] SSB transmission

[0058] In some communication systems (such as NR systems), the initial access process of the terminal device can be completed by detecting the SSB on the synchronization raster. SSB is transmitted through the discovery signal transmission opportunity window (discovery burst transmission window) or the SSB transmission opportunity window. The discovery signal transmission opportunity window or the SSB transmission opportunity window may appear periodically, and the period may be configured by the network device through high-level parameters. The discovery signal transmission opportunity window or the SSB transmission opportunity window may include a set of candidate positions for SSB transmission. A set of SSB transmission opportunities (also called an SSB burst set) may include one or more SSBs, an SSB includes 4 symbols in the time domain, and a set of SSB transmission opportunities should be transmitted within one half frame (5ms).

[0059] For the FR1 band, an SSB burst set contains up to eight SSBs. A maximum of three bits are required to indicate the index of these eight SSBs. These three bits are implicitly carried by the demodulation reference symbol (DMRS) sequence of the physical broadcast channel (PBCH). There are eight different PBCH DMRS sequences, corresponding to eight different SSB indices.

[0060] In the FR2 band, due to its higher frequency, beam energy must be more concentrated to ensure long-distance signal transmission. Consequently, the coverage angle of a single beam is smaller, requiring the use of more beams to ensure cell coverage. Currently, a maximum of 64 SSBs can be configured in the FR2 band, and 6 bits are required to indicate the index of these 64 SSBs. The lower 3 bits of these 6 bits are still carried by the DMRS sequence of the PBCH, and the additional upper 3 bits are directly indicated by the PBCH payload content.

[0061] One of the main functions of the SSB index is to allow terminal devices to obtain system timing information. In addition, the SSB index also has another function: it indicates the quasi co-location (QCL) relationship between SSBs. QCL means that the large-scale parameters of the channel experienced by symbols on one antenna port can be inferred from the channel experienced by symbols on another antenna port. These large-scale parameters can include delay spread, average delay, Doppler spread, Doppler shift, and spatial reception parameters. Specifically for SSBs, in some communication systems (such as 5G systems), SSBs carried by different beams constitute an SSB burst set. Different SSB indices correspond to different SSB time domain location information within the burst set and also correspond to specific SSB transmission beam information. SSBs with the same SSB index can be considered to have a QCL relationship; in other words, SSBs with the same SSB index experience the same or similar large-scale channel parameters. Terminal devices can assume that the network equipment uses the same beam to transmit these SSBs. There is no QCL relationship between SSBs corresponding to different SSB indices because they may come from different transmission beams of the network device and experience different channel transmission characteristics.

[0062] During the initial access process, the terminal device attempts to search for the SSB through the predefined possible time and frequency positions of the SSB. Furthermore, the terminal device obtains time and frequency synchronization, radio frame timing, and cell ID through the detected SSB.

[0063] The information carried by the PBCH in the SSB includes the master information block (MIB), the MIB message type indicator, and the PBCH information bits. The information included in the MIB is shown in Table 1, totaling 23 bits. 23 bits plus 1 bit of MIB message type indicator, the message generated by the upper layer includes A = 24 bits. The A bit information is the first A bits carried in the PBCH, denoted as a0, a1, ..., a A-1 .

[0064] Table 1

[0065] In addition to the above 24 bits, the physical layer will also generate an additional 8 bits of PBCH information bits, denoted as a A , a A+1 ,…,a A+7 .

[0066] It can be seen that, excluding the cyclic redundancy check (CRC), the PBCH may include a total of 32 information bits.

[0067] a A , a A+1 , a A+2 , a A+3 , which are used to represent the 4th, 3rd, 2nd and 1st least significant bits (LSB) of SFN respectively.

[0068] a A+4 It is the half-frame indication bit, used to indicate whether the SSB burst set corresponds to the first half-frame or the second half-frame.

[0069] For the licensed spectrum of FR1, a A+5 Used to indicate k SSB The most significant bit (MSB) of a A+6 and a A+7 Reserved bits.

[0070] For FR2, a A+5 , a A+6 , a A+7 , which are used to represent the 6th, 5th, and 4th bits of the SSB index respectively.

[0071] k SSB The indication information is used to indicate N SSB-CRB The number of subcarriers offset between subcarrier 0 in the SSB and subcarrier 0 in the SSB. For the FR1 authorized spectrum, k SSB Contains 5 bits. k SSBThe 4 LSB bits in k are indicated by the SSB subcarrier offset in the MIB. SSB The MSB in the PBCH information bit is a A+5 Indicated. For FR2, k SSB Contains 4 bits, which are indicated by the SSB subcarrier offset in the MIB. For FR1 unlicensed spectrum, when k SSB When the indicated value is less than 24, k SSB The LSB in is also used to indicate QCL assumption indication information Q.

[0072] To facilitate understanding of the "SIB1 PDCCH configuration" information field, the transmission of SIB1 is first explained below.

[0073] In some communication systems (such as NR systems), the resource set used to transmit PDCCH is called a control-resource set (CORESET). A CORESET can include N RB Resource blocks (RBs) can include N symb symbols. Among them, N RB and N symb It is configured by the network device. A CORESET can be associated with one or more search space (SS) sets. A search space set includes one or more control channel elements (CCEs). Terminal devices can monitor PDCCH candidates on the CCEs included in the search space set.

[0074] The network device will configure the Type 0-Physical Downlink Control Channel Common Search Space (Type0-PDCCH common search space, Type0-PDCCH CSS) set through the MIB information in the SSB. The PDCCH transmitted in the Type0-PDCCH CSS set is used to schedule the PDSCH carrying SIB1. The search space set of the PDCCH is indicated by the pdcch-ConfigSIB1 information field in the MIB information, and the CRC of the DCI format corresponding to the PDCCH is scrambled by the system information radio network temporary identity (SI-RNTI). The terminal device can monitor the PDCCH candidate according to the CORESET0 associated with the Type0-PDCCH CSS at the corresponding Type0-PDCCH CSS monitoring opportunity, thereby receiving the scheduling of the corresponding SIB1 message. Specifically, the pdcch-ConfigSIB1 information field includes 8 bits, of which the lower 4 bits indicate the configuration of the Type0-PDCCH CSS, and the upper 4 bits indicate the configuration of the CORESET0.

[0075] If the terminal device detects an SSB and determines that the SSB is not associated with the CORESET information used to determine the Type0-PDCCH CSS set, and for FR1, when k SSB The indicated value is greater than or equal to 24 and less than or equal to 29, or for FR2, when k SSB When the indicated value is greater than or equal to 12 and less than or equal to 13, the terminal device can determine the global synchronization channel number (GSCN) of another SSB that is most recently associated with the CORESET information of the Type0-PDCCH CSS set. If the terminal device detects the other SSB but determines that the other SSB does not provide CORESET information for determining the Type0-PDCCH CSS set, the terminal device can ignore the GSCN information provided in the other SSB.

[0076] It should be noted that for FR1, when k SSB The indicated value is 31, or for FR2, when k SSB When the indicated value is 15, the terminal device can determine that there is no SSB associated with the CORESET information of the Type0-PDCCH CSS set within a GSCN range.

[0077] It should be noted that for FR1, when kSSB The indicated value is 30, or for FR2, when k SSB When the indicated value is 14, the SIB1 PDCCH is configured as a reserved value.

[0078] It should be noted that system messages other than SIB1 are scheduled using the Type0A-PDCCH CSS set. In other words, the PDCCH transmitted in the Type0A-PDCCH CSS set is used to schedule the PDSCH carrying system messages other than SIB1. The CRC of the DCI format corresponding to the PDCCH transmitted in the Type0A-PDCCH CSS set is also scrambled using the SI-RNTI.

[0079] The terminal device may also obtain the resource configuration of the physical random access channel (PRACH) transmission opportunity (RO) during the random access process based on the received cell system message SIB1. The terminal device may request the network device to send a system message based on the RO resources configured by the network device. The system message requested by the terminal device to send to the network device may be other system messages in addition to SIB1, such as one or more of SIB2, SIB3, SIB4, SIB5, SIB6, SIB7, SIB8, SIB9, SIB10, SIB11, SIB12, SIB13, SIB14, SIB15, SIB16, SIB17, SIB18, SIB19, SIB20, SIB21, etc.

[0080] Network Energy Saving

[0081] Network energy conservation is crucial for environmental sustainability, reducing environmental impact (e.g., greenhouse gas emissions), and saving operating costs. As communication systems (e.g., 5G) become increasingly widespread across various industries and geographic regions, they will need to support very high data rates to handle more advanced services and applications (e.g., extended reality (XR)). This results in denser network deployments, using more antennas, greater bandwidth, and more frequency bands. Given the environmental impact of communication systems, new, controlled solutions are needed to enhance network energy conservation.

[0082] Energy consumption has become a key component of operators' operational expenditure (OPEX). According to a report by the Global System for Mobile Communications Association (GSMA), energy costs for mobile networks account for approximately 23% of total operating costs. Most of the energy consumption comes from the radio access network, more specifically, from the active antenna unit (AAU). Data centers and fiber optic transmission account for a smaller share. The power consumption of a single radio access can be divided into a dynamic part and a static part. The dynamic part can only include the power consumption when data is being sent or received. The static part can include the power consumption required to maintain the necessary operations of the radio access equipment at all times. For example, the static part can include the power consumption when no data is being sent or received.

[0083] In summary, based on the above objectives, it is necessary to research and develop network energy consumption models, key performance indicators (KPIs), and evaluation methods on the network device side to determine and study network energy-saving technologies in the target deployment scenario. Among them, the power consumption model on the terminal device side that has been defined can be used as a reference. This research should focus on how to achieve more efficient dynamic operation and / or semi-static operation, and consider one or more network energy-saving technologies applied in the time domain, frequency domain, spatial domain, and power domain, combined with potential terminal device feedback support, potential terminal device auxiliary information, and information exchange or coordination between network interfaces to achieve more fine-grained data transmission and / or reception adaptation.

[0084] It is worth noting that this study not only evaluates potential network energy savings, but also assesses and balances the impact of network energy savings enhancements on network and user performance by observing key performance indicators (KPIs) such as spectrum efficiency, capacity, user perceived throughput (UPT), latency, UE power consumption, complexity, handover performance, call drop rate, initial access performance, and service level agreement (SLA) security-related KPIs. For example, this study should avoid significantly impacting the aforementioned KPIs.

[0085] In order to achieve network energy saving, one network deployment method is that when the network is in an idle state, network devices do not transmit common channels / signals such as SSB or SIB1.

[0086] FIG2 is a schematic flow chart of a wireless communication method provided by an embodiment of the present application to solve the above-mentioned problem. The method shown in FIG2 can be implemented by a terminal device and a network device. The method shown in FIG2 can include steps S210 to S230.

[0087] Step S210: The terminal device determines a first uplink resource in a first cell.

[0088] The method shown in FIG. 2 may further include step S212 .

[0089] Step S212: The network device determines a first uplink resource in the first cell.

[0090] Step S220: The terminal device sends a first uplink channel / signal through a first uplink resource.

[0091] Step S230: The network device detects a first uplink channel / signal through a first uplink resource.

[0092] It is understandable that, in step S230, the network device may detect the first uplink channel / signal, i.e., receive the first uplink channel / signal. For example, in the case where the terminal device sends the first uplink channel / signal through the first uplink resource, the network device may detect the first uplink channel / signal through the first uplink resource. In step S230, the network device may not detect the first uplink channel / signal, i.e., not receive the first uplink channel / signal. For example, in the case where the terminal device does not send the first uplink channel / signal through the first uplink resource, the network device cannot detect the first uplink channel / signal through the first uplink resource, i.e., the network device cannot receive the first uplink channel / signal.

[0093] The first uplink channel / signal may be used to request sending of a first system message.

[0094] In some embodiments, the first system message may be used to indicate network configuration information. For example, the first system message may include a common channel / signal such as SSB and / or SIB1.

[0095] In some embodiments, the first system message may be a system message that the network device does not transmit in some situations. For example, when the network is in an idle state, the network device may not transmit the first system message to achieve energy saving for the network device.

[0096] Based on the present application, when a terminal device needs a first system message (for example, the terminal device needs to access the network), the terminal device can determine a first uplink resource for sending a first uplink channel / signal, thereby transmitting the first uplink channel / signal to request the network device to send the first system message. The network device can also detect the first uplink channel / signal based on the first uplink resource, thereby sending the first system message. Therefore, based on the present application, the first system message can be requested and transmitted at an appropriate time, thereby improving communication efficiency and reducing energy consumption.

[0097] The first uplink resource may be an uplink resource in the first cell. The first system message may be a system message of the first cell or a system message of the second cell. The first cell and the second cell may be different. That is to say, based on the present application, the uplink resources of a certain cell may be used flexibly to request system messages of the current cell and / or another cell. For example, the first cell may be a primary cell (PCell), and the second cell may be a secondary cell (SCell). In this case, the terminal device may send a first uplink channel / signal through the uplink resources of the PCell, and the first uplink channel / signal may be used to request system messages of the PCell and / or for requesting system messages of the SCell. Alternatively, the first cell may be an SCell, and the second cell may be a PCell. The terminal device may send a first uplink channel / signal through the uplink resources of the SCell, and the first uplink channel / signal may be used to request system messages of the PCell and / or for requesting system messages of the SCell.

[0098] As described above, the first system message may include system messages such as SSB and / or SIB1. That is, the first system message may include SSB; or, the first system message may include SIB1; or, the first system message may include SSB and SIB1. Depending on the type of message included in the first system message, the present application proposes corresponding solutions. For example, the present application may be applicable to at least one of the following situations: situation one, the first uplink channel / signal is used to request SSB; situation two, the first uplink channel / signal is used to request SIB1; situation three, the first uplink channel / signal is used to request SSB and SIB1.

[0099] As mentioned above, in order to achieve network energy saving, the network device may not transmit the first system message. When the terminal device needs to access the network, the terminal device may send a first uplink channel / signal to the network device to request the network device to send the first system message. Regarding how to enable the terminal device to obtain the time-frequency resource information of the network, and determine the first uplink resource in the first cell, so as to send the first uplink channel / signal, the present application proposes the following technical solution. For example, if the first system message includes a common channel or signal such as SSB (or PBCH) for initial access, and the sending of the first system message is based on the request of the terminal device, in order to enable the terminal device to determine on which time-frequency resources the first uplink channel / signal should be sent, the present application proposes that the network device can send a first downlink channel / signal to the terminal device in advance, and the first downlink channel / signal is used for the terminal device to obtain information on at least part of the system time domain resources and frequency domain resources, and determine the first uplink resource in the first cell, so that the terminal device can complete the sending of the first uplink channel / signal. For another example, if the first system message includes SIB1 but does not include SSB, and the service cell configuration information such as the SIB1 message is based on the demand request of the terminal device, the present application proposes that the first downlink channel / signal sent in advance by the network device to the terminal device may be SSB, and the SSB is used by the terminal device to obtain information about at least part of the system time domain resources and frequency domain resources, and to determine the first uplink resource in the first cell, so that the terminal device can complete the transmission of the first uplink channel / signal. In addition, after the network device detects the first uplink channel / signal sent by the terminal device, the network device may send a second downlink channel / signal to the terminal device, and the second downlink channel / signal includes the first system message requested by the terminal device.

[0100] It will be understood that, in this application, the first uplink channel / signal includes: a first uplink physical channel and / or a first uplink reference signal. For example, the first uplink channel / signal includes a PUCCH. In another example, the first uplink channel / signal includes a PRACH. The first downlink channel / signal includes: a first downlink physical channel and / or a first downlink reference signal. The second downlink channel / signal includes: a second downlink physical channel and / or a second downlink reference signal.

[0101] In some embodiments of the present application, spatial filter information associated with a downlink resource may refer to spatial filter information associated with a downlink channel / signal transmitted on the downlink resource. Spatial filter information associated with an uplink resource may refer to spatial filter information associated with an uplink channel / signal transmitted on the uplink resource, or spatial filter information associated with a downlink resource associated with the uplink resource.

[0102] In some embodiments of the present application, the spatial filter information associated with the downlink resource may refer to: the spatial filter information associated with the downlink channel / signal transmitted on the downlink resource; or the spatial filter information associated with the uplink resource associated with the downlink resource. The spatial filter information associated with the uplink resource may refer to: the spatial filter information associated with the uplink channel / signal transmitted on the uplink resource.

[0103] The present application solution is described below through Example 1 and Example 2.

[0104] Example 1

[0105] Embodiment 1 may be applicable to at least one of Case 1, Case 2, and Case 3. In Embodiment 1, the first uplink channel / signal is used to request an SSB, or the first uplink channel / signal is used to request an SIB1, or the first uplink channel / signal is used to request an SSB and an SIB1. For example, when the network is idle, the network device does not send an SSB, and the first uplink channel / signal is used to request an SSB. Alternatively, when the network is idle, the network device sends an SSB but does not send an SIB1, and the first uplink channel / signal is used to request an SIB1. Alternatively, when the network is idle, the network device does not send an SSB and an SIB1, and the first uplink channel / signal is used to request an SSB and an SIB1.

[0106] As an implementation manner, the first uplink channel / signal is used to request the first system message to be sent, which includes at least: a primary system message. The primary system message may be, for example, one or more of MIB, SSB, and PBCH.

[0107] As another implementation manner, the first uplink channel / signal is used to request the sending of the first system message including SIB1.

[0108] It should be noted that the present application can be applied to a frequency division duplex (FDD) communication mode or a time division duplex (TDD) communication mode, and the present application is not limited thereto. For example, the uplink resources and downlink resources in the first cell can be FDD spectrum resources or TDD spectrum resources. Alternatively, the uplink resources and downlink resources in the second cell can also be FDD spectrum resources or TDD spectrum resources.

[0109] In some implementations, a terminal device or a network device may determine the first uplink resource based on the first downlink resource. The first downlink resource may be a downlink resource of the first cell or a downlink resource of the second cell. For example, the terminal device may determine the first uplink resource in the first cell based on the first downlink resource in the first cell; or the terminal device may determine the first uplink resource in the first cell based on the first downlink resource in the second cell.

[0110] In some embodiments, the first uplink resource may be determined based on a first downlink channel / signal received or transmitted on the first downlink resource. For example, a terminal device may determine the first uplink resource in the first cell based on the first downlink channel / signal received on the first downlink resource. For another example, a network device may determine the first uplink resource in the first cell based on the first downlink channel / signal transmitted on the first downlink resource.

[0111] Based on the first downlink channel / signal, the terminal device can obtain information about at least part of the system time domain resources and / or frequency domain resources, thereby determining the first uplink resource so that the terminal device can complete the transmission of the first uplink channel / signal.

[0112] Optionally, the first downlink channel / signal includes one or more synchronization signals. For example, the first downlink channel / signal may include a primary synchronized signal (PSS) and / or a secondary synchronization signal (SSS).

[0113] In some embodiments, the relationship between the first downlink resource and the first uplink resource is predefined; or the relationship between the first downlink resource and the first uplink resource is preconfigured.

[0114] In some embodiments, the relationship between the first downlink resource and the first uplink resource satisfies one or more of the following: the relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

[0115] For example, the first resource interval between the first downlink resource and the first uplink resource may be preconfigured or predefined. The first resource interval may be an interval in the time domain or an interval in the frequency domain. Taking the time domain resource as an example, the first resource interval may be represented by a time domain unit. For example, the first resource interval may include N time domain units. N may be an integer or 0. N may be predefined or preconfigured. The time domain unit may be a symbol, a time slot, a half-frame, or a radio frame.

[0116] Exemplarily, if N time domain units are equal to 5 time slots, the time slot interval between the time slot where the first downlink resource is located and the time slot where the first uplink resource is located may be 5 time slots.

[0117] Exemplarily, if N time domain units are equal to T radio frames, where T is a positive integer, then the radio frame in which the first downlink resource is located and the radio frame in which the first uplink resource is located are separated by T radio frames. The radio frame length is 10 milliseconds. For example, if the first downlink resource is a resource in radio frame n, then the first uplink resource is a resource in radio frame n+T. Optionally, the position of the time slot in which the first downlink resource is located in its radio frame is the same as the position of the time slot in which the first uplink resource is located in its radio frame. For example, in the aforementioned example, the first downlink resource is a resource in time slot 0 in radio frame n, and the first uplink resource is a resource in time slot 0 in radio frame n+T.

[0118] Exemplarily, if N time domain units are equal to T half frames, and T is a positive integer, then the half frame where the first downlink resource is located and the half frame where the first uplink resource is located are separated by T half frames. The half frame length is 5 milliseconds. For example, if T is 3, the first downlink resource is the resource in the first half frame of radio frame n, and the first uplink resource is the resource in the second half frame of radio frame n+1. Optionally, the position of the time slot where the first downlink resource is located in its half frame is the same as the position of the time slot where the first uplink resource is located in its half frame. For example, in the aforementioned example, assuming that a radio frame includes 10 time slots, the first half frame includes time slots 0 to time slot 4, and the second half frame includes time slots 5 to time slots 9, the first downlink resource is the resource on time slot 0 in radio frame n, and the first uplink resource is the resource on time slot 5 in radio frame n+1.

[0119] Exemplarily, if N time domain units are equal to 0 radio frames or 1 half-frame, there is no gap between the half-frame in which the first downlink resource is located and the half-frame in which the first uplink resource is located, that is, the two half-frames are adjacent. It should be noted that the two half-frames may belong to the same radio frame or to different radio frames (e.g., adjacent radio frames). Optionally, the position of the time slot in which the first downlink resource is located in its half-frame is the same as the position of the time slot in which the first uplink resource is located in its half-frame.

[0120] For another example, the size of the first downlink resource may be the same as the size of the first uplink resource. The size may include the frequency domain resource size and / or the time domain resource size. For example, in some embodiments (e.g., an FDD spectrum), the size of the frequency domain resources occupied by the first downlink resource is the same as the size of the frequency domain resources occupied by the first uplink resource.

[0121] For another example, the resources occupied by the first downlink resource may be the same as the resources occupied by the first uplink resource. The occupied resources may include occupied frequency domain resources and / or occupied time domain resources. Exemplarily, in some embodiments (e.g., TDD spectrum), the frequency domain resources occupied by the first downlink resource are the same as the frequency domain resources occupied by the first uplink resource.

[0122] For another example, the subcarrier spacing used for transmitting the first downlink channel / signal on the first downlink resource may be the same as the subcarrier spacing used for transmitting the first uplink channel / signal on the first uplink resource.

[0123] For another example, the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource may be the same.

[0124] In some embodiments, after receiving the first downlink channel / signal on the first downlink resource, the terminal device may determine the first uplink resource in the first cell based on the relationship between the first downlink resource and the first uplink resource, and send the first uplink channel / signal through the first uplink resource. The first uplink channel / signal is used to request the transmission of a first system message, such as an SSB, of the first cell or the second cell.

[0125] It should be noted that the present application does not limit the configuration cell for pre-configuring the relationship between the first downlink resource and the first uplink resource. For example, the configuration cell may be the first cell and / or the second cell.

[0126] FIG3A and FIG3B illustrate an example in which the first downlink channel / signal includes PSS and SSS. The interval between the first uplink resource and the first downlink resource can be 2 predefined or preconfigured symbols. As shown in FIG3A or FIG3B, a time slot includes 2 first downlink resources for transmitting PSS and SSS and 2 first uplink resources for requesting SSB transmission. The first uplink channel / signal for requesting SSB transmission includes 1 symbol. As shown in FIG3A or FIG3B, the first first downlink resource for transmitting PSS and SSS is located on symbols 1 and 2 in the time slot. The first uplink resource corresponding to the first first downlink resource is located on symbol 5, which is 2 symbols away from symbol 2 in the time slot. The second first downlink resource for transmitting PSS and SSS is located on symbols 8 and 9 in the time slot. The first uplink resource corresponding to the second first downlink resource is located on symbol 12, which is 2 symbols away from symbol 9 in the time slot.

[0127] As mentioned above, the method provided in this application can be applied to both TDD and FDD spectrums. For example, FIG3A can be applied to TDD spectrum, and FIG3B can be applied to FDD spectrum.

[0128] In some embodiments, the terminal device may receive the first system message via the second downlink resource. In other words, the network device may send the first system message via the second downlink resource. For example, if the network device receives the first uplink channel / signal via the first uplink resource, the network device may send the first system message via the second downlink resource.

[0129] It should be noted that the second downlink resources may include downlink resources of the first cell and / or downlink resources of the second cell. For example, the second downlink resources may be downlink resources of the first cell or downlink resources of the second cell.

[0130] It should be noted that the first downlink resource and the second downlink resource may be downlink resources of the same cell; or the first downlink resource and the second downlink resource may be downlink resources of different cells. That is, when the first downlink resource belongs to the first cell, the second downlink resource may be a downlink resource of the first cell or a downlink resource of the second cell.

[0131] In some embodiments, the cell to which the second downlink resource belongs may be the same as or different from the cell to which the first system message belongs. For example, the network device may send the first system message of the first cell through the second downlink resource in the first cell, and the terminal device may receive the first system message of the first cell through the second downlink resource in the first cell; or, the network device may send the first system message of the first cell through the second downlink resource in the second cell, and the terminal device may receive the first system message of the first cell through the second downlink resource in the second cell; or, the network device may send the first system message of the second cell through the second downlink resource in the first cell, and the terminal device may receive the first system message of the second cell through the second downlink resource in the first cell; or, the network device may send the first system message of the second cell through the second downlink resource in the second cell, and the terminal device may receive the first system message of the second cell through the second downlink resource in the second cell.

[0132] In some embodiments, the relationship between the first downlink resource and the second downlink resource is predefined; or the relationship between the first downlink resource and the second downlink resource is preconfigured.

[0133] As an implementation method, the relationship between the first downlink resource and the second downlink resource may satisfy one or more of the following: the relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is preconfigured or predefined; the relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is preconfigured or predefined; the relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is preconfigured or predefined; and the relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is preconfigured or predefined.

[0134] For example, the second resource interval between the second downlink resource and the first downlink resource may be preconfigured or predefined. The second resource interval may be an interval in the time domain or an interval in the frequency domain. Taking the time domain resource as an example, the second resource interval may be represented by a time domain unit. For example, the second resource interval may include M time domain units. M may be an integer or 0. M may be predefined or preconfigured. The time domain unit may be a symbol, a time slot, a half-frame, or a radio frame.

[0135] Exemplarily, if M time domain units are equal to 5 time slots, the time slot interval between the time slot where the first downlink resource is located and the time slot where the second downlink resource is located may be 5 time slots.

[0136] Exemplarily, if M time domain units are equal to K radio frames, where K is a positive integer, then the radio frame in which the first downlink resource is located is spaced apart by K radio frames from the radio frame in which the second downlink resource is located. The radio frame length is 10 milliseconds. For example, if the first downlink resource is a resource in radio frame n, then the second downlink resource is a resource in radio frame n+K. Optionally, the position of the time slot in which the first downlink resource is located in its radio frame is the same as the position of the time slot in which the second downlink resource is located in its radio frame. For example, in the aforementioned example, the first downlink resource is a resource in time slot 0 in radio frame n, and the second downlink resource is a resource in time slot 0 in radio frame n+K.

[0137] Exemplarily, if M time domain units are equal to K half frames, and K is a positive integer, then the half frame where the first downlink resource is located and the half frame where the second downlink resource is located are separated by K half frames. The half frame length is 5 milliseconds. For example, if K is 3, the first downlink resource is the resource in the first half frame of radio frame n, and the second downlink resource is the resource in the second half frame of radio frame n+1. Optionally, the position of the time slot where the first downlink resource is located in the half frame where it is located is the same as the position of the time slot where the second downlink resource is located in the half frame where it is located. For example, in the aforementioned example, assuming that a radio frame includes 10 time slots, the first half frame includes time slots 0 to time slot 4, and the second half frame includes time slots 5 to time slot 9, the first downlink resource is the resource on time slot 0 in radio frame n, and the second downlink resource is the resource on time slot 5 in radio frame n+1.

[0138] Exemplarily, if M time domain units are equal to 0 radio frames or 1 half-frame, there is no gap between the half-frame in which the first downlink resource is located and the half-frame in which the second downlink resource is located, that is, the two half-frames are adjacent. It should be noted that the two half-frames may belong to the same radio frame or to different radio frames (e.g., adjacent radio frames). Optionally, the position of the time slot in which the first downlink resource is located in its half-frame is the same as the position of the time slot in which the second downlink resource is located in its half-frame.

[0139] For another example, the size of the second downlink resource may be the same as the size of the first downlink resource. The size may include the size of the frequency domain resource and / or the size of the time domain resource. For example, in some embodiments (e.g., an FDD spectrum), the size of the frequency domain resource occupied by the second downlink resource is the same as the size of the frequency domain resource occupied by the first downlink resource.

[0140] For another example, the resources occupied by the second downlink resource may be the same as the resources occupied by the first downlink resource. The occupied resources may include occupied frequency domain resources and / or occupied time domain resources. Exemplarily, in some embodiments (e.g., TDD spectrum), the frequency domain resources occupied by the second downlink resource are the same as the frequency domain resources occupied by the first downlink resource.

[0141] For another example, the subcarrier spacing associated with the second downlink resource may be the same as the subcarrier spacing associated with the first downlink resource.

[0142] For another example, the spatial filter information associated with the second downlink resource may be the same as the spatial filter information associated with the first downlink resource.

[0143] It should be noted that the present application does not limit the configuration cell for pre-configuring the relationship between the second downlink resource and the first downlink resource. For example, the configuration cell may be the first cell and / or the second cell.

[0144] In some embodiments, the relationship between the first uplink resource and the second downlink resource is predefined; or the relationship between the first uplink resource and the second downlink resource is preconfigured.

[0145] As an implementation method, the relationship between the first uplink resource and the second downlink resource may satisfy one or more of the following: the relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is preconfigured or predefined; the relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is preconfigured or predefined; the relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is preconfigured or predefined; the relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is preconfigured or predefined.

[0146] For example, the third resource interval between the second downlink resource and the first uplink resource may be preconfigured or predefined. The third resource interval may be an interval in the time domain or an interval in the frequency domain. Taking the time domain resource as an example, the third resource interval may be represented by a time domain unit. For example, the third resource interval may be P time domain units. P may be an integer or 0. P may be predefined or preconfigured. A time domain unit may be a symbol, a time slot, a half-frame, or a radio frame.

[0147] Exemplarily, if P time domain units are equal to 5 time slots, the time slot interval between the time slot where the first uplink resource is located and the time slot where the second downlink resource is located may be 5 time slots.

[0148] Exemplarily, if P time domain units are equal to L radio frames, where L is a positive integer, then the radio frame containing the first uplink resource and the radio frame containing the second downlink resource are separated by L radio frames. The radio frame length is 10 milliseconds. For example, if the first uplink resource is a resource in radio frame n, then the second downlink resource is a resource in radio frame n+L. Optionally, the position of the time slot containing the first uplink resource in its radio frame is the same as the position of the time slot containing the second downlink resource in its radio frame. For example, in the aforementioned example, the first uplink resource is the resource in time slot 1 in radio frame n, and the second downlink resource is the resource in time slot 1 in radio frame n+L.

[0149] Exemplarily, if P time domain units are equal to L half frames, and L is a positive integer, then the half frame where the first uplink resource is located and the half frame where the second downlink resource is located are separated by L half frames. The half frame length is 5 milliseconds. For example, if L is 3, the first uplink resource is the resource in the first half frame of radio frame n, and the second downlink resource is the resource in the second half frame of radio frame n+1. Optionally, the position of the time slot where the first uplink resource is located in the half frame and the position of the time slot where the second downlink resource is located in the half frame are the same. For example, in the aforementioned example, assuming that a radio frame includes 10 time slots, the first half frame includes time slots 0 to time slot 4, and the second half frame includes time slots 5 to time slot 9, the first uplink resource is the resource on time slot 1 in radio frame n, and the second downlink resource is the resource on time slot 6 in radio frame n+1.

[0150] Exemplarily, if P time domain units are equal to 0 radio frames or 1 half-frame, there is no gap between the half-frame in which the first uplink resource is located and the half-frame in which the second downlink resource is located, that is, the two half-frames are adjacent. It should be noted that the two half-frames may belong to the same radio frame or to different radio frames (e.g., adjacent radio frames). Optionally, the position of the time slot in which the first uplink resource is located in its half-frame is the same as the position of the time slot in which the second downlink resource is located in its half-frame.

[0151] For another example, the size of the second downlink resource may be the same as the size of the first uplink resource. The size may include the frequency domain resource size and / or the time domain resource size. For example, in some embodiments (e.g., an FDD spectrum), the size of the frequency domain resources occupied by the second downlink resource is the same as the size of the frequency domain resources occupied by the first uplink resource.

[0152] For another example, the resources occupied by the second downlink resource may be the same as the resources occupied by the first uplink resource. The occupied resources may include occupied frequency domain resources and / or occupied time domain resources. Exemplarily, in some embodiments (e.g., TDD spectrum), the frequency domain resources occupied by the second downlink resource are the same as the frequency domain resources occupied by the first uplink resource.

[0153] For another example, the subcarrier spacing associated with the second downlink resource may be the same as the subcarrier spacing associated with the first uplink resource.

[0154] For another example, the spatial filter information associated with the second downlink resource may be the same as the spatial filter information associated with the first uplink resource.

[0155] It should be noted that the present application does not limit the configuration cell for pre-configuring the relationship between the second downlink resource and the first uplink resource. For example, the configuration cell may be the first cell and / or the second cell.

[0156] FIG4 is an example diagram of the second downlink resource provided in the embodiment of the application.

[0157] In the example of Figure 4, the first downlink resource and / or the first uplink resource for requesting SSB transmission in a cycle is located in the first half frame (5ms), and the half frame and the second half frame where the SSB transmission is located are located in the same radio frame or in adjacent radio frames. For example, the first half frame where the first downlink resource and / or the first uplink resource are located and the second half frame where the second downlink resource used for SSB transmission is located are adjacent half frames, and the first half frame is located before the second half frame. The first half frame is the first half frame in radio frame n, and the second half frame is the second half frame in radio frame n. Alternatively, the first half frame is the second half frame in radio frame n, and the second half frame is the first half frame in radio frame n+1. For another example, the first half frame where the first downlink resource and / or the first uplink resource are located and the second half frame where the second downlink resource used for SSB transmission is located both belong to radio frame n. The first half frame is the first half frame in radio frame n, and the second half frame is the second half frame in radio frame n. Alternatively, the second half frame is the first half frame in radio frame n, and the first half frame is the second half frame in radio frame n.

[0158] In some implementations, the number of first downlink resources in a cycle and the number of first uplink resources used to request SSB transmission are the same as the number of SSBs included in an SSB transmission opportunity, and the PSS and SSS transmitted on the first downlink resources have a QCL relationship with the SSB transmitted on their corresponding second downlink resources. For example, with continued reference to FIG4 , channels / signals transmitted on time-domain resources of the same pattern have a QCL relationship.

[0159] It should be noted that FIG4 is illustrated using a subcarrier spacing of 15 kHz and an FDD spectrum as an example. The method provided in this application can also be used in situations with other spectrum types or subcarrier spacings, and this application does not limit this. For example, the method shown in FIG4 can also be used for TDD spectrum. Alternatively, the method shown in FIG4 can also be used in scenarios such as a subcarrier spacing of 30 kHz.

[0160] In some embodiments, after the network device transmits the SSB through the second downlink resource, it can send a SIB1 message corresponding to the SSB.

[0161] For ease of understanding, the request and transmission process of SSB is illustrated below with reference to Figures 3B and 4. The time slot shown in Figure 3B may be time slot 1 in Figure 4. As shown in Figure 3B, the terminal device receives PSS and SSS on the first first downlink resource in time slot 1 (i.e., symbol 1 and symbol 2 in time slot 1). The terminal device can then send a request message (i.e., the first uplink channel / signal) requesting SSB transmission to the network device through the first first uplink resource in time slot 1 (i.e., symbol 5 in time slot 1). Correspondingly, the network device can receive the request message sent by the terminal device on symbol 5 in time slot 1. As shown in Figure 4, after the network device receives the request message, it can transmit SSB2 through the second downlink resource in time slot 6. Among them, the PSS and SSS sent on symbols 1 and 2 in time slot 1 have a QCL relationship with the SSB2 sent in time slot 6. Optionally, when the network device sends SSB2, it will also send a corresponding SIB1 message associated with SSB2.

[0162] Example 2

[0163] Embodiment 2 is an embodiment for Case 2. In Case 2, the first system message may be SIB1, that is, the first uplink channel / signal is used to request SIB1. For example, Embodiment 2 may be applied to the following scenario: in a network idle state, a network device sends an SSB but does not send SIB1.

[0164] As an implementation manner, before the terminal device determines the first uplink resource in the first cell, the terminal device may receive the first SSB through the first downlink resource. The first SSB may not be associated with SIB1 transmission.

[0165] It should be noted that the first downlink resource can be a downlink resource of the first cell or a downlink resource of the second cell. In other words, the first SSB received by the terminal device can be transmitted by the first cell or the second cell. The terminal device can determine the first uplink resource in the first cell for transmitting the first uplink channel / signal based on the first SSB transmitted by the first cell or the second cell. The first uplink channel / signal is used to request the network device to send the SIB1 of the first cell or the SIB1 of the second cell.

[0166] In some implementations, the first SSB may include a first information field. When the value of the first information field is a first value, the first information field may be used to determine that the first SSB is not associated with SIB1 transmission, or the first information field is used to determine that the terminal device can send a first uplink channel / signal through a first uplink resource.

[0167] It is understandable that in a normal cell, the network device needs to send an SSB associated with SIB1 to enable the terminal device to complete the initial access. If the feature of the network device sending SSB but not SIB1 is introduced in the energy-saving cell, the terminal device cannot distinguish whether the currently sent SSB is associated with SIB1 transmission or not associated with SIB1 transmission. Based on this, the present application can indicate whether the SSB is associated with SIB1 transmission through the first information field. On the other hand, if the terminal device needs to request SIB1 transmission, the terminal device can determine the first uplink transmission resource for the first uplink channel / signal transmission based on the SSB not associated with SIB1 transmission, thereby requesting the transmission of SIB1.

[0168] In some embodiments, the first information field may be used to indicate the subcarrier offset of the first SSB. That is, the first information field may include k SSB When the frequency band to which the first downlink resource belongs is FR1, the first value is 30 or 31; or, when the frequency band to which the first downlink resource belongs is FR2, the first value is 14 or 15. That is, when the frequency band to which the first downlink resource belongs is FR1, and k in the first SSB is SSB When the value is 30 or 31, the first SSB is not associated with SIB1 transmission; or, when the frequency band to which the first downlink resource belongs is FR2, and k in the first SSB is SSB When the value is 14 or 15, the first SSB is not associated with SIB1 transmission.

[0169] For example, when the frequency band to which the first downlink resource belongs is FR1, and k SSB When the indicated value is 30 or 31, k SSB It can mean that the network device sends SSB but does not send SIB1, and / or the terminal device can send a first uplink channel / signal through a first uplink resource, and the first uplink channel / signal is used to request to send SIB1.

[0170] For example, when the frequency band to which the first downlink resource belongs is FR2, and k SSB When the indicated value is 14 or 15, k SSB It can mean that the network device sends SSB but does not send SIB1, and / or the terminal device can send a first uplink channel / signal through a first uplink resource, and the first uplink channel / signal is used to request to send SIB1.

[0171] As mentioned above, in the related art, when the frequency band to which the first downlink resource belongs is FR1 and k SSB When the indicated value is 30 or 31, or when the frequency band to which the first downlink resource belongs is FR2 and k SSBWhen the indicated value is 14 or 15, the SIB1PDCCH is configured as a reserved value or there is no SSB with CORESET information associated with the Type0-PDCCH CSS set within a GSCN range. SSB It is reused as the first information field, thereby avoiding the addition of a new information field and reducing the implementation complexity.

[0172] In some embodiments, one or more of the following information fields in the first SSB (hereinafter referred to as target information fields) are preset values: common subcarrier spacing, TypeA DMRS position, SIB1 PDCCH configuration, cell barring, intra-frequency reselection, and spare bits.

[0173] When the first SSB is not associated with SIB1 transmission, the above-mentioned target information field can be reused as the first information field, thereby avoiding the addition of a new information field and reducing the implementation complexity.

[0174] In some implementations, when the target information field in the first SSB is set to a preset value, the first SSB is not associated with SIB1 transmission. Alternatively, when the target information field is set to a preset value, it can be determined that: the network device sends the SSB but does not send the SIB1, and / or the terminal device can send the first uplink channel / signal through the first uplink resource.

[0175] The above embodiments can be implemented individually or in combination. For example, when the target information domain is a preset value and for FR1, k SSB The indicated value is 31 or for FR2, k SSB When the indicated value is 15, the first SSB is not associated with the SIB transmission or the first information field is used to determine that the terminal device can send the first uplink channel / signal through the first uplink resource.

[0176] In some embodiments, the first SSB may be used to determine the first uplink resource. For example, the terminal device may determine the first uplink resource based on the first SSB received on the first downlink resource.

[0177] It is understandable that since the first SSB is not associated with the transmission of SIB1, the network device can send the first SSB but not SIB1. After receiving the first SSB, the terminal device can determine the first uplink resource through the first SSB and send the first uplink channel / signal through the first uplink resource to request the transmission of SIB1.

[0178] As a possible implementation method, the second information field in the first SSB can be used to determine or indicate the time domain position and / or frequency domain position of the first uplink resource.

[0179] Optionally, based on the second information field, the terminal device may determine information related to the first uplink resource. Furthermore, based on the information related to the first uplink resource, the terminal device may determine information about time domain resources and / or frequency domain resources of the first uplink resource. The information related to the first uplink resource may include one or more of the following: candidate resource information for the first uplink resource, information related to the frequency domain resources of the first uplink resource, and information related to the time domain resources of the first uplink resource.

[0180] Optionally, based on the second information field, the terminal device can directly determine the time domain resources and / or frequency domain resources of the first uplink resource.

[0181] After determining the time domain resource and / or frequency domain resource of the first uplink resource, the terminal device may send a first uplink channel / signal on the first uplink resource to request the network device to send a SIB1 message.

[0182] In some embodiments, the second information field may include a SIB1 PDCCH configuration information field. The SIB1 PDCCH configuration information field is used to determine the Type0-PDCCH CSS set. The time domain position of the first uplink resource can be determined based on the time domain position of the Type0-PDCCH CSS set determined by the SIB1 PDCCH configuration information field in the first SSB, and / or the frequency domain position of the first uplink resource can be determined based on the frequency domain position of the Type0-PDCCH CSS set determined by the SIB1 PDCCH configuration information field in the first SSB. It can be understood that when the first SSB is not associated with SIB1 transmission, the SIB1 PDCCH configuration information field can be used to indicate the time domain position and / or frequency domain position of the first uplink resource.

[0183] Exemplarily, the relationship between the first uplink resource and the Type0-PDCCH CSS set may satisfy one or more of the following: the time domain position of the first uplink resource includes the first symbol of the time domain position where at least one Type0-PDCCH CSS set is located; the time domain position of the first uplink resource includes the last symbol of the time domain position where at least one Type0-PDCCH CSS set is located; the frequency domain position of the first uplink resource is the same as the frequency domain position where the Type0-PDCCH CSS set is located; and the frequency domain resource size of the first uplink resource is the same as the frequency domain resource size of the Type0-PDCCH CSS set.

[0184] As a possible implementation manner, the first uplink resource may be determined based on the first downlink resource; or, the first uplink resource may be determined based on the relationship between the first downlink resource and the first uplink resource.

[0185] In some embodiments, the relationship between the first downlink resource and the first uplink resource is predefined; or the relationship between the first downlink resource and the first uplink resource is preconfigured.

[0186] In some embodiments, the relationship between the first downlink resource and the first uplink resource satisfies one or more of the following: the relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

[0187] For example, the first resource interval between the first downlink resource and the first uplink resource may be preconfigured or predefined. The first resource interval may be an interval in the time domain or an interval in the frequency domain. Taking the time domain resource as an example, the first resource interval may be represented by a time domain unit. For example, the first resource interval may include N time domain units. N may be an integer or 0. N may be predefined or preconfigured. The time domain unit may be a symbol, a time slot, a half-frame, or a radio frame.

[0188] Exemplarily, if N time domain units are equal to 5 time slots, the time slot interval between the time slot where the first downlink resource is located and the time slot where the first uplink resource is located may be 5 time slots.

[0189] Exemplarily, if N time domain units are equal to T radio frames, where T is a positive integer, then the radio frame in which the first downlink resource is located and the radio frame in which the first uplink resource is located are separated by T radio frames. The radio frame length is 10 milliseconds. For example, if the first downlink resource is a resource in radio frame n, then the first uplink resource is a resource in radio frame n+T. Optionally, the position of the time slot in which the first downlink resource is located in its radio frame is the same as the position of the time slot in which the first uplink resource is located in its radio frame. For example, in the aforementioned example, the first downlink resource is a resource in time slot 0 in radio frame n, and the first uplink resource is a resource in time slot 0 in radio frame n+T.

[0190] Exemplarily, if N time domain units are equal to T half frames, and T is a positive integer, then the half frame where the first downlink resource is located and the half frame where the first uplink resource is located are separated by T half frames. The half frame length is 5 milliseconds. For example, if T is 3, the first downlink resource is the resource in the first half frame of radio frame n, and the first uplink resource is the resource in the second half frame of radio frame n+1. Optionally, the position of the time slot where the first downlink resource is located in its half frame is the same as the position of the time slot where the first uplink resource is located in its half frame. For example, in the aforementioned example, assuming that a radio frame includes 10 time slots, the first half frame includes time slots 0 to time slot 4, and the second half frame includes time slots 5 to time slots 9, the first downlink resource is the resource on time slot 0 in radio frame n, and the first uplink resource is the resource on time slot 5 in radio frame n+1.

[0191] Exemplarily, if N time domain units are equal to 0 radio frames or 1 half-frame, there is no gap between the half-frame in which the first downlink resource is located and the half-frame in which the first uplink resource is located, that is, the two half-frames are adjacent. It should be noted that the two half-frames may belong to the same radio frame or to different radio frames (e.g., adjacent radio frames). Optionally, the position of the time slot in which the first downlink resource is located in its half-frame is the same as the position of the time slot in which the first uplink resource is located in its half-frame.

[0192] For another example, the size of the first downlink resource may be the same as the size of the first uplink resource. The size may include the frequency domain resource size and / or the time domain resource size. For example, in some embodiments (e.g., an FDD spectrum), the size of the frequency domain resources occupied by the first downlink resource is the same as the size of the frequency domain resources occupied by the first uplink resource.

[0193] For another example, the resources occupied by the first downlink resource may be the same as the resources occupied by the first uplink resource. The occupied resources may include occupied frequency domain resources and / or occupied time domain resources. Exemplarily, in some embodiments (e.g., TDD spectrum), the frequency domain resources occupied by the first downlink resource are the same as the frequency domain resources occupied by the first uplink resource.

[0194] For example, the subcarrier spacing used to transmit the first SSB on the first downlink resource may be the same as the subcarrier spacing used to transmit the first uplink channel / signal on the first uplink resource.

[0195] For another example, the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource may be the same.

[0196] In some embodiments, after receiving the first SSB on the first downlink resource, the terminal device determines the first uplink resource in the first cell based on the relationship, and sends a first uplink channel / signal through the first uplink resource. The first uplink channel / signal is used to request the sending of SIB1 of the first cell.

[0197] It should be noted that the present application does not limit the configuration cell for pre-configuring the relationship between the second downlink resource and the first uplink resource. For example, the configuration cell may be the first cell and / or the second cell.

[0198] Optionally, the terminal device may receive a second SSB via a second downlink resource; wherein the second SSB may be associated with SIB1. That is, if the network device receives a request to send SIB1, it may send the second SSB associated with SIB1 transmission to the terminal device through a solution of the relevant technology, thereby sending SIB1.

[0199] It should be noted that the second downlink resources may include downlink resources of the first cell and / or downlink resources of the second cell. For example, the second downlink resources may be downlink resources of the first cell or downlink resources of the second cell.

[0200] It should be noted that the first downlink resource and the second downlink resource may be downlink resources of the same cell, or the first downlink resource and the second downlink resource may be downlink resources of different cells.

[0201] In some embodiments, the relationship between the first downlink resource and the second downlink resource is predefined; or the relationship between the first downlink resource and the second downlink resource is preconfigured.

[0202] As an implementation method, the relationship between the first downlink resource and the second downlink resource may satisfy one or more of the following: the relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is preconfigured or predefined; the relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is preconfigured or predefined; the relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is preconfigured or predefined; and the relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is preconfigured or predefined.

[0203] For example, the second resource interval between the second downlink resource and the first downlink resource may be preconfigured or predefined. The second resource interval may be an interval in the time domain or an interval in the frequency domain. Taking the time domain resource as an example, the second resource interval may be represented by a time domain unit. For example, the second resource interval may include M time domain units. M may be an integer or 0. M may be predefined or preconfigured. The time domain unit may be a symbol, a time slot, a half-frame, or a radio frame.

[0204] Exemplarily, if M time domain units are equal to 5 time slots, the time slot interval between the time slot where the first downlink resource is located and the time slot where the second downlink resource is located may be 5 time slots.

[0205] Exemplarily, if M time domain units are equal to K radio frames, where K is a positive integer, then the radio frame in which the first downlink resource is located is spaced apart by K radio frames from the radio frame in which the second downlink resource is located. The radio frame length is 10 milliseconds. For example, if the first downlink resource is a resource in radio frame n, then the second downlink resource is a resource in radio frame n+K. Optionally, the position of the time slot in which the first downlink resource is located in its radio frame is the same as the position of the time slot in which the second downlink resource is located in its radio frame. For example, in the aforementioned example, the first downlink resource is a resource in time slot 0 in radio frame n, and the second downlink resource is a resource in time slot 0 in radio frame n+K.

[0206] Exemplarily, if M time domain units are equal to K half frames, and K is a positive integer, then the half frame where the first downlink resource is located and the half frame where the second downlink resource is located are separated by K half frames. The half frame length is 5 milliseconds. For example, if K is 3, the first downlink resource is the resource in the first half frame of radio frame n, and the second downlink resource is the resource in the second half frame of radio frame n+1. Optionally, the position of the time slot where the first downlink resource is located in the half frame where it is located is the same as the position of the time slot where the second downlink resource is located in the half frame where it is located. For example, in the aforementioned example, assuming that a radio frame includes 10 time slots, the first half frame includes time slots 0 to time slot 4, and the second half frame includes time slots 5 to time slot 9, the first downlink resource is the resource on time slot 0 in radio frame n, and the second downlink resource is the resource on time slot 5 in radio frame n+1.

[0207] Exemplarily, if M time domain units are equal to 0 radio frames or 1 half-frame, there is no gap between the half-frame in which the first downlink resource is located and the half-frame in which the second downlink resource is located, that is, the two half-frames are adjacent. It should be noted that the two half-frames may belong to the same radio frame or to different radio frames (e.g., adjacent radio frames). Optionally, the position of the time slot in which the first downlink resource is located in its half-frame is the same as the position of the time slot in which the second downlink resource is located in its half-frame.

[0208] For another example, the size of the second downlink resource may be the same as the size of the first downlink resource. The size may include the size of the frequency domain resource and / or the size of the time domain resource. For example, in some embodiments (e.g., an FDD spectrum), the size of the frequency domain resource occupied by the second downlink resource is the same as the size of the frequency domain resource occupied by the first downlink resource.

[0209] For another example, the resources occupied by the second downlink resource may be the same as the resources occupied by the first downlink resource. The occupied resources may include occupied frequency domain resources and / or occupied time domain resources. Exemplarily, in some embodiments (e.g., TDD spectrum), the frequency domain resources occupied by the second downlink resource are the same as the frequency domain resources occupied by the first downlink resource.

[0210] For another example, the subcarrier spacing associated with the second downlink resource may be the same as the subcarrier spacing associated with the first downlink resource.

[0211] For another example, the spatial filter information associated with the second downlink resource may be the same as the spatial filter information associated with the first downlink resource.

[0212] It should be noted that the present application does not limit the configuration cell for pre-configuring the relationship between the second downlink resource and the first downlink resource. For example, the configuration cell may be the first cell and / or the second cell.

[0213] In some embodiments, the relationship between the first uplink resource and the second downlink resource is predefined; or the relationship between the first uplink resource and the second downlink resource is preconfigured.

[0214] As an implementation method, the relationship between the first uplink resource and the second downlink resource may satisfy one or more of the following: the relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is preconfigured or predefined; the relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is preconfigured or predefined; the relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is preconfigured or predefined; the relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is preconfigured or predefined.

[0215] For example, the third resource interval between the second downlink resource and the first uplink resource may be preconfigured or predefined. The third resource interval may be an interval in the time domain or an interval in the frequency domain. Taking time domain resources as an example, the second resource interval may be represented by a time domain unit. For example, the third resource interval may be P time domain units. P may be an integer or 0. P may be predefined or preconfigured. A time domain unit may be a symbol, a time slot, a half-frame, or a radio frame.

[0216] Exemplarily, if P time domain units are equal to 5 time slots, the time slot interval between the time slot where the first uplink resource is located and the time slot where the second downlink resource is located may be 5 time slots.

[0217] Exemplarily, if P time domain units are equal to L radio frames, where L is a positive integer, then the radio frame containing the first uplink resource and the radio frame containing the second downlink resource are separated by L radio frames. The radio frame length is 10 milliseconds. For example, if the first uplink resource is a resource in radio frame n, then the second downlink resource is a resource in radio frame n+L. Optionally, the position of the time slot containing the first uplink resource in its radio frame is the same as the position of the time slot containing the second downlink resource in its radio frame. For example, in the aforementioned example, the first uplink resource is the resource in time slot 1 in radio frame n, and the second downlink resource is the resource in time slot 1 in radio frame n+L.

[0218] Exemplarily, if P time domain units are equal to L half frames, and L is a positive integer, then the half frame where the first uplink resource is located and the half frame where the second downlink resource is located are separated by L half frames. The half frame length is 5 milliseconds. For example, if L is 3, the first uplink resource is the resource in the first half frame of radio frame n, and the second downlink resource is the resource in the second half frame of radio frame n+1. Optionally, the position of the time slot where the first uplink resource is located in the half frame and the position of the time slot where the second downlink resource is located in the half frame are the same. For example, in the aforementioned example, assuming that a radio frame includes 10 time slots, the first half frame includes time slots 0 to time slot 4, and the second half frame includes time slots 5 to time slot 9, the first uplink resource is the resource on time slot 1 in radio frame n, and the second downlink resource is the resource on time slot 6 in radio frame n+1.

[0219] Exemplarily, if P time domain units are equal to 0 radio frames or 1 half-frame, there is no gap between the half-frame in which the first uplink resource is located and the half-frame in which the second downlink resource is located, that is, the two half-frames are adjacent. It should be noted that the two half-frames may belong to the same radio frame or to different radio frames (e.g., adjacent radio frames). Optionally, the position of the time slot in which the first uplink resource is located in its half-frame is the same as the position of the time slot in which the second downlink resource is located in its half-frame.

[0220] For another example, the size of the second downlink resource may be the same as the size of the first uplink resource. The size may include the frequency domain resource size and / or the time domain resource size. For example, in some embodiments (e.g., an FDD spectrum), the size of the frequency domain resources occupied by the second downlink resource is the same as the size of the frequency domain resources occupied by the first uplink resource.

[0221] For another example, the resources occupied by the second downlink resource may be the same as the resources occupied by the first uplink resource. The occupied resources may include occupied frequency domain resources and / or occupied time domain resources. Exemplarily, in some embodiments (e.g., TDD spectrum), the frequency domain resources occupied by the second downlink resource are the same as the frequency domain resources occupied by the first uplink resource.

[0222] For another example, the subcarrier spacing associated with the second downlink resource may be the same as the subcarrier spacing associated with the first uplink resource.

[0223] For another example, the spatial filter information associated with the second downlink resource may be the same as the spatial filter information associated with the first uplink resource.

[0224] It should be noted that the present application does not limit the configuration cell for pre-configuring the relationship between the second downlink resource and the first uplink resource. For example, the configuration cell may be the first cell and / or the second cell.

[0225] Figures 5A to 5C give an example of determining the time domain position of the first uplink resource based on the SIB1PDCCH configuration information in the first SSB. It will be understood that this example is applied to some embodiments (e.g., TDD spectrum). The SIB1PDCCH configuration information in the first SSB is used to indicate the configuration of the Type0-PDCCH CSS. The configuration of the Type0-PDCCH CSS includes: the values ​​of the parameters O and M (only for mode 1), the index of the first OFDM symbol in the search space, and the number of search spaces in each time slot (only for mode 1). For mode 1, the SSB and CORESET 0 can be mapped on different symbols, and the frequency range of CORESET 0 needs to include the SSB. The Type0-PDCCH CSS of an SSB is within a monitoring window containing 2 consecutive time slots, and the period of the monitoring window is 20ms. The mapping relationship between the index i of the SSB and the first time slot of its corresponding monitoring window can be:

[0226] n0 is the index of the first time slot in the Type0-PDCCH CSS monitoring window in a radio frame, and a radio frame is 10ms. When , it is mapped in the first radio frame of 20ms; when When , it is mapped in the second wireless frame of 20ms.

[0227] μ represents the subcarrier spacing SCS configuration, Indicates the number of time slots included in a radio frame when the SCS is configured as μ.

[0228] The parameter M controls the degree of overlap of the monitoring windows of SSB i and SSB i+1, including no overlap (M=2), overlap of 1 time slot (M=1), and complete overlap (M=1 / 2). The parameter O is used to control the starting position of the monitoring window of the first SSB to avoid conflicts between the Type0-PDCCH CSS monitoring window and the SSB. For FR1, O can take the value of {0, 2, 5, 7}, and for FR2, O can take the value of {0, 2.5, 5, 7.5}. For example, when the SCS is 120kHz, O takes the values ​​of 0, 2.5, 5, and 7.5, corresponding to offset values ​​of 0 time slots, 20 time slots, 40 time slots, and 60 time slots, respectively.

[0229] Figures 5A to 5C are schematic diagrams of the Type0-PDCCH CSS monitoring window in the three cases of M=1 / 2, M=1, and M=2. When M=1 / 2, the starting symbols of the two search spaces on a time slot can be configured as symbols {0, 7} or {0, N}. symb}; When M = 1 or 2, the starting symbol of the search space on a time slot is symbol 0. In FIG5A, when M = 1 / 2, it is assumed that the starting symbols of the two search spaces on a time slot are configured as symbols {0, N symb}.

[0230] When the Type0-PDCCH CSS set in the Type0-PDCCH CSS monitoring window shown in Figures 5A to 5C is determined based on the SIB1PDCCH configuration information in the first SSB, the time domain position of the first uplink resource can be determined based on the time domain position of the Type0-PDCCH CSS set, and / or the frequency domain position of the first uplink resource can be determined based on the frequency domain position of the Type0-PDCCH CSS set. For example, the time domain position of the first uplink resource may include at least one of the following: the starting symbol of the first Type0-PDCCH CSS set of the two Type0-PDCCH CSS sets associated with the first SSB, the ending symbol of the first Type0-PDCCH CSS set of the two Type0-PDCCH CSS sets associated with the first SSB, the starting symbol of the second Type0-PDCCH CSS set of the two Type0-PDCCH CSS sets associated with the first SSB, and the ending symbol of the second Type0-PDCCH CSS set of the two Type0-PDCCH CSS sets associated with the first SSB; when the Type0-PDCCH CSS monitoring window shown in Figures 5A to 5C is determined based on the SIB1PDCCH configuration information in the second SSB, the terminal device can monitor the scheduling of the SIB1 message through the Type0-PDCCH CSS.

[0231] The method embodiments of the present application are described in detail above, and the device embodiments of the present application are described in detail below. It should be understood that the description of the method embodiments corresponds to the description of the device embodiments, so for parts not described in detail, reference can be made to the above method embodiments.

[0232] 6 is a schematic structural diagram of a terminal device 600 provided in an embodiment of the present application. The terminal device 600 may include a determining unit 610 and a first sending unit 620.

[0233] The determining unit 610 is configured to determine a first uplink resource in a first cell.

[0234] The first sending unit 620 is configured to send a first uplink channel / signal through a first uplink resource, where the first uplink channel / signal is used to request sending of a first system message.

[0235] In some embodiments, the first system message is a system message of the first cell or a system message of the second cell.

[0236] In some embodiments, the first system message includes SSB; the first system message includes SIB1; or the first system message includes SSB and SIB1

[0237] In some embodiments, determining the first uplink resource in the first cell includes: determining the first uplink resource according to the first downlink resource; wherein the first downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

[0238] In some embodiments, determining the first uplink resource in the first cell includes: determining the first uplink resource according to a first downlink channel / signal received in the first downlink resource.

[0239] In some embodiments, the first downlink channel / signal includes: PSS and / or SSS.

[0240] In some embodiments, the first downlink resource and the first uplink resource satisfy one or more of the following: the relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

[0241] In some embodiments, the terminal device 600 is further used to: receive the first system message through the second downlink resource.

[0242] In some embodiments, the second downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

[0243] In some embodiments, the first downlink resource and the second downlink resource are downlink resources of the same cell; or, the first downlink resource and the second downlink resource are downlink resources of different cells.

[0244] In some embodiments, the first downlink resource and the second downlink resource satisfy one or more of the following: the relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

[0245] In some embodiments, the first uplink resource and the second downlink resource satisfy one or more of the following: the relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

[0246] In some embodiments, the first system message is SIB1.

[0247] In some embodiments, before determining the first uplink resource in the first cell, the terminal device is further used to: receive a first SSB through the first downlink resource; wherein the first SSB is not associated with SIB1 transmission.

[0248] In some embodiments, the first downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

[0249] In some embodiments, the first SSB includes a first information field. When the value of the first information field is a first value, the first information field is used to determine that the first SSB is not associated with SIB1 transmission, or the first information field is used to determine that the terminal device can send a first uplink channel / signal through a first uplink resource.

[0250] In some embodiments, the first information field is used to indicate the subcarrier offset of the first SSB, wherein when the frequency band to which the first downlink resource belongs is FR1, the first value is 30 or 31; or, when the frequency band to which the first downlink resource belongs is FR2, the first value is 14 or 15.

[0251] In some embodiments, one or more of the following in the first SSB are preset values: common subcarrier spacing, Type A DMRS position, SIB1 PDCCH configuration, cell barring, intra-frequency reselection, and spare bits.

[0252] In some embodiments, determining a first uplink resource in a first cell includes: determining the first uplink resource based on a first SSB.

[0253] In some embodiments, the second information field in the first SSB is used to determine the time domain position and / or frequency domain position of the first uplink resource.

[0254] In some embodiments, the second information field includes a SIB1PDCCH configuration information field, and the SIB1PDCCH configuration information field is used to determine the Type0-PDCCH CSS set, wherein the time domain position of the first uplink resource is determined based on the time domain position of the Type0-PDCCH CSS set, and / or the frequency domain position of the first uplink resource is determined based on the frequency domain position of the Type0-PDCCH CSS set.

[0255] In some embodiments, one or more of the following conditions are satisfied between the first uplink resource and the Type0-PDCCH CSS set: the time domain position of the first uplink resource includes the first symbol of the time domain position where the Type0-PDCCH CSS set is located; the time domain position of the first uplink resource includes the last symbol of the time domain position where the Type0-PDCCH CSS set is located; the frequency domain position of the first uplink resource is the same as the frequency domain position where the Type0-PDCCH CSS set is located; and the frequency domain resource size of the first uplink resource is the same as the frequency domain resource size of the Type0-PDCCH CSS set.

[0256] In some embodiments, the first downlink resource and the first uplink resource satisfy one or more of the following: the relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

[0257] In some embodiments, the terminal device 600 is further used to: receive a second SSB through a second downlink resource; wherein the second SSB is associated with SIB1 transmission.

[0258] In some embodiments, the second downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

[0259] In some embodiments, the first downlink resource and the second downlink resource are downlink resources of the same cell; or, the first downlink resource and the second downlink resource are downlink resources of different cells.

[0260] In some embodiments, the first downlink resource and the second downlink resource satisfy one or more of the following: the relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

[0261] In some embodiments, the first uplink resource and the second downlink resource satisfy one or more of the following: the relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

[0262] In an optional embodiment, the determining unit 610 may be a processor 810. The first sending unit 620 may be a transceiver 830. The terminal device 600 may further include a memory 820, as specifically shown in FIG8 .

[0263] FIG7 is a schematic structural diagram of a network device 700 provided in an embodiment of the present application. The network device 700 includes a detection 710 .

[0264] In detection 710 , the network device detects a first uplink channel / signal through a first uplink resource in a first cell, where the first uplink channel / signal is used to request sending a first system message.

[0265] In some embodiments, the first system message is a system message of the first cell or a system message of the second cell.

[0266] In some embodiments, the first system message includes an SSB; the first system message includes an SIB1; or the first system message includes an SSB and an SIB1.

[0267] In some embodiments, the first uplink resource is determined based on the first downlink resource, and the first downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

[0268] In some embodiments, the first uplink resource is determined based on a first downlink channel / signal transmitted on the first downlink resource.

[0269] In some embodiments, the first downlink channel / signal includes: PSS and / or SSS.

[0270] In some embodiments, the first downlink resource and the first uplink resource satisfy one or more of the following: the relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

[0271] In some embodiments, the network device 700 is further configured to: send a first system message through a second downlink resource if the network device receives a first uplink channel / signal through a first uplink resource.

[0272] In some embodiments, the second downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

[0273] In some embodiments, the first downlink resource and the second downlink resource are downlink resources of the same cell; or, the first downlink resource and the second downlink resource are downlink resources of different cells.

[0274] In some embodiments, the first downlink resource and the second downlink resource satisfy one or more of the following: the relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

[0275] In some embodiments, the first uplink resource and the second downlink resource satisfy one or more of the following: the relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

[0276] In some embodiments, the first system message is SIB1.

[0277] In some embodiments, before receiving the first uplink channel / signal through the first uplink resource in the first cell, the network device is further used to: send a first SSB through the first downlink resource; wherein the first SSB is not associated with SIB1 transmission.

[0278] In some embodiments, the first downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

[0279] In some embodiments, the first SSB includes a first information field. When the value of the first information field is a first value, the first information field is used to determine that the first SSB is not associated with SIB1 transmission, or the first information field is used to determine that the terminal device can send a first uplink channel / signal through a first uplink resource.

[0280] In some embodiments, the first information field is used to indicate the subcarrier offset of the first SSB, wherein when the frequency band to which the first downlink resource belongs is FR1, the first value is 30 or 31; or, when the frequency band to which the first downlink resource belongs is FR2, the first value is 14 or 15.

[0281] In some embodiments, one or more of the following in the first SSB are preset values: common subcarrier spacing, position, SIB1 PDCCH configuration, cell barring, intra-frequency reselection, and spare bits.

[0282] In some embodiments, the first uplink resource is determined based on the first SSB.

[0283] In some embodiments, the second information field in the first SSB is used to determine the time domain position and / or frequency domain position of the first uplink resource.

[0284] In some embodiments, the second information field includes a SIB1PDCCH configuration information field, and the SIB1PDCCH configuration information field is used to determine the Type0-PDCCH CSS set, wherein the time domain position of the first uplink resource is determined based on the time domain position of the Type0-PDCCH CSS set, and / or the frequency domain position of the first uplink resource is determined based on the frequency domain position of the Type0-PDCCH CSS set.

[0285] In some embodiments, one or more of the following conditions are satisfied between the first uplink resource and the Type0-PDCCH CSS set: the time domain position of the first uplink resource includes the first symbol of the time domain position where the Type0-PDCCH CSS set is located; the time domain position of the first uplink resource includes the last symbol of the time domain position where the Type0-PDCCH CSS set is located; the frequency domain position of the first uplink resource is the same as the frequency domain position where the Type0-PDCCH CSS set is located; and the frequency domain resource size of the first uplink resource is the same as the frequency domain resource size of the Type0-PDCCH CSS set.

[0286] In some embodiments, the first downlink resource and the first uplink resource satisfy one or more of the following: the relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

[0287] In some embodiments, the network device 700 is further configured to: if the network device receives a first uplink channel / signal in a first uplink resource, send a second SSB through a second downlink resource; wherein the second SSB is associated with SIB1 transmission.

[0288] In some embodiments, the second downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

[0289] In some embodiments, the first downlink resource and the second downlink resource are downlink resources of the same cell; or, the first downlink resource and the second downlink resource are downlink resources of different cells.

[0290] In some embodiments, the first downlink resource and the second downlink resource satisfy one or more of the following: the relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

[0291] In some embodiments, the first uplink resource and the second downlink resource satisfy one or more of the following: the relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; the relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and the relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

[0292] In an optional embodiment, the detection unit 710 may be a processor 810. The network device 700 may further include a memory 820 and a transceiver 830, as specifically shown in FIG8 .

[0293] FIG8 is a schematic block diagram of an apparatus according to an embodiment of the present application. The dashed lines in FIG8 indicate that the unit or module is optional. Apparatus 800 may be used to implement the method described in the above method embodiment. Apparatus 800 may be a chip, a terminal device, or a network device.

[0294] The device 800 may include one or more processors 810. The processor 810 may support the device 800 to implement the method described in the method embodiment above. The processor 810 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0295] The apparatus 800 may further include one or more memories 820. The memories 820 store programs that can be executed by the processor 810, causing the processor 810 to perform the methods described in the above method embodiments. The memories 820 may be independent of the processor 810 or integrated into the processor 810.

[0296] The apparatus 800 may further include a transceiver 830. The processor 810 may communicate with other devices or chips via the transceiver 830. For example, the processor 810 may transmit and receive data with other devices or chips via the transceiver 830.

[0297] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal or network device provided in the present application, and the program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0298] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to a terminal or network device provided in the present application, and the program causes a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0299] The embodiments of the present application also provide a computer program. The computer program can be applied to the terminal or network device provided in the embodiments of the present application, and the computer program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0300] It should be understood that in the embodiments of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0301] It should be understood that the term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0302] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0303] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0304] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0305] The “configuration” in the embodiment of the present application may include configuration through at least one of system messages, radio resource control (RRC) signaling and media access control element (MAC CE).

[0306] In some embodiments of the present application, "predefined" or "preset" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device or a network device). This application does not limit the specific implementation method. For example, predefined may refer to information defined in a protocol.

[0307] In some embodiments of the present application, the "protocol" may refer to a standard protocol in the field of communications, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and this application does not limit this.

[0308] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0309] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0310] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0311] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0312] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that: include: The terminal device determines a first uplink resource in a first cell; The terminal device sends a first uplink channel / signal through the first uplink resource, and the first uplink channel / signal is used to request to send a first system message.

2. The method according to claim 1, characterized in that The first system message is a system message of the first cell or a system message of the second cell.

3. The method according to claim 1 or 2, characterized in that: The first system message includes a synchronization signal block SSB; the first system message includes a system message block SIB1; or the first system message includes SSB and SIB1.

4. The method according to claim 3, characterized in that The terminal device determines a first uplink resource in a first cell, including: The terminal device determines the first uplink resource based on the first downlink resource; wherein the first downlink resource is the downlink resource of the first cell or the downlink resource of the second cell.

5. The method according to claim 4, characterized in that The terminal device determines a first uplink resource in a first cell, including: The terminal device determines the first uplink resource based on a first downlink channel / signal received on the first downlink resource.

6. The method according to claim 5, characterized in that The first downlink channel / signal includes: a primary synchronization signal PSS and / or a secondary synchronization signal SSS.

7. The method according to any one of claims 4 to 6, characterized in that The first downlink resource and the first uplink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

8. The method according to any one of claims 4 to 7, characterized in that The method further comprises: The terminal device receives the first system message through the second downlink resource.

9. The method according to claim 8, characterized in that The second downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

10. The method according to claim 8 or 9, characterized in that: The first downlink resource and the second downlink resource are downlink resources of the same cell; or, the first downlink resource and the second downlink resource are downlink resources of different cells.

11. The method according to any one of claims 8 to 10, characterized in that The first downlink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

12. The method according to any one of claims 8 to 11, characterized in that The first uplink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; Relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

13. The method according to claim 1 or 2, characterized in that: The first system message is SIB1.

14. The method according to claim 13, characterized in that Before the terminal device determines the first uplink resource in the first cell, the method further includes: The terminal device receives a first SSB through a first downlink resource; wherein the first SSB is not associated with SIB1 transmission.

15. The method according to claim 14, characterized in that The first downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

16. The method according to claim 14 or 15, characterized in that The first SSB includes a first information field. When the value of the first information field is a first value, the first information field is used to determine that the first SSB is not associated with SIB1 transmission, or the first information field is used to determine that the terminal device can send the first uplink channel / signal through the first uplink resource.

17. The method according to claim 16, characterized in that The first information field is used to indicate the subcarrier offset of the first SSB, wherein: When the frequency band to which the first downlink resource belongs is the frequency range FR1, the first value is 30 or 31; or, When the frequency band to which the first downlink resource belongs is FR2, the first value is 14 or 15.

18. The method according to any one of claims 14 to 17, characterized in that One or more of the following in the first SSB are preset values: common subcarrier spacing, type A demodulation reference symbol TypeA DMRS position, SIB1 physical downlink control channel PDCCH configuration, cell prohibition, same-frequency reselection and spare bits.

19. The method according to any one of claims 14 to 18, characterized in that The terminal device determines a first uplink resource in a first cell, including: The terminal device determines the first uplink resource based on the first SSB.

20. The method according to claim 19, characterized in that The second information field in the first SSB is used to determine the time domain position and / or frequency domain position of the first uplink resource.

21. The method according to claim 20, characterized in that The second information field includes a SIB1 PDCCH configuration information field, and the SIB1 PDCCH configuration information field is used to determine a type 0-physical downlink control channel common search space Type0-PDCCH CSS set, wherein the time domain position of the first uplink resource is determined based on the time domain position of the Type0-PDCCH CSS set, and / or the frequency domain position of the first uplink resource is determined based on the frequency domain position of the Type0-PDCCH CSS set.

22. The method according to claim 21, characterized in that One or more of the following is satisfied between the first uplink resource and the Type0-PDCCH CSS set: The time domain position of the first uplink resource includes the first symbol of the time domain position where the Type0-PDCCH CSS set is located; The time domain position of the first uplink resource includes the last symbol of the time domain position where the Type0-PDCCH CSS set is located; The frequency domain position of the first uplink resource is the same as the frequency domain position of the Type0-PDCCH CSS set; and, The frequency domain resource size of the first uplink resource is the same as the frequency domain resource size of the Type0-PDCCH CSS set.

23. The method according to any one of claims 14 to 18, characterized in that The first downlink resource and the first uplink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

24. The method according to any one of claims 13 to 23, characterized in that The method further comprises: The terminal device receives a second SSB through a second downlink resource; wherein the second SSB is associated with SIB1 transmission.

25. The method according to claim 24, characterized in that The second downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

26. The method according to claim 24 or 25, characterized in that The first downlink resource and the second downlink resource are downlink resources of the same cell; or, the first downlink resource and the second downlink resource are downlink resources of different cells.

27. The method according to any one of claims 24 to 26, characterized in that The first downlink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

28. The method according to any one of claims 24 to 27, characterized in that The first uplink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

29. A wireless communication method, characterized in that: include: The network device detects a first uplink channel / signal through a first uplink resource, where the first uplink channel / signal is used to request sending a first system message.

30. The method according to claim 29, characterized in that The first system message is a system message of the first cell or a system message of the second cell.

31. The method according to claim 29 or 30, characterized in that The first system message includes a synchronization signal block SSB; the first system message includes a system message block SIB1; or the first system message includes SSB and SIB1.

32. The method according to claim 31, characterized in that The first uplink resource is determined based on a first downlink resource, and the first downlink resource is a downlink resource of the first cell or a downlink resource of a second cell.

33. The method according to claim 32, characterized in that The first uplink resource is determined based on a first downlink channel / signal transmitted on the first downlink resource.

34. The method according to claim 33, characterized in that The first downlink channel / signal includes: a primary synchronization signal PSS and / or a secondary synchronization signal SSS.

35. The method according to any one of claims 32 to 34, characterized in that The first downlink resource and the first uplink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

36. The method according to any one of claims 32 to 35, characterized in that The method further comprises: If the network device receives the first uplink channel / signal in the first uplink resource, the network device sends the first system message through a second downlink resource.

37. The method according to claim 36, characterized in that The second downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

38. The method according to claim 36 or 37, characterized in that The first downlink resource and the second downlink resource are downlink resources of the same cell; or, the first downlink resource and the second downlink resource are downlink resources of different cells.

39. The method according to any one of claims 36 to 38, characterized in that The first downlink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

40. The method according to any one of claims 36 to 39, characterized in that The first uplink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

41. The method according to claim 29 or 30, characterized in that The first system message is SIB1.

42. The method according to claim 41, characterized in that Before the network device receives the first uplink channel / signal through the first uplink resource in the first cell, the method further includes: The network device sends a first SSB through a first downlink resource; wherein the first SSB is not associated with SIB1 transmission.

43. The method according to claim 42, characterized in that The first downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

44. The method according to claim 42 or 43, characterized in that The first SSB includes a first information field. When the value of the first information field is a first value, the first information field is used to determine that the first SSB is not associated with SIB1 transmission, or the first information field is used to determine that the terminal device can send the first uplink channel / signal through the first uplink resource.

45. The method according to claim 44, characterized in that The first information field is used to indicate the subcarrier offset of the first SSB, When the frequency band to which the first downlink resource belongs is the frequency range FR1, the first value is 30 or 31; or, When the frequency band to which the first downlink resource belongs is FR2, the first value is 14 or 15.

46. ​​The method according to any one of claims 34 to 45, characterized in that One or more of the following in the first SSB are preset values: common subcarrier spacing, type A demodulation reference symbol position, SIB1 physical downlink control channel PDCCH configuration, cell barring, same-frequency reselection, and spare bits.

47. The method according to any one of claims 34 to 46, characterized in that The first uplink resource is determined based on the first SSB.

48. The method according to claim 47, characterized in that The second information field in the first SSB is used to determine the time domain position and / or frequency domain position of the first uplink resource.

49. The method according to claim 48, characterized in that The second information field includes a SIB1 PDCCH configuration information field, and the SIB1 PDCCH configuration information field is used to determine a type 0-physical downlink control channel common search space Type0-PDCCH CSS set, wherein the time domain position of the first uplink resource is determined based on the time domain position of the Type0-PDCCH CSS set, and / or the frequency domain position of the first uplink resource is determined based on the frequency domain position of the Type0-PDCCH CSS set.

50. The method according to claim 49, characterized in that One or more of the following is satisfied between the first uplink resource and the Type0-PDCCH CSS set: The time domain position of the first uplink resource includes the first symbol of the time domain position where the Type0-PDCCH CSS set is located; The time domain position of the first uplink resource includes the last symbol of the time domain position where the Type0-PDCCH CSS set is located; The frequency domain position of the first uplink resource is the same as the frequency domain position of the Type0-PDCCH CSS set; and, The frequency domain resource size of the first uplink resource is the same as the frequency domain resource size of the Type0-PDCCH CSS set.

51. The method according to any one of claims 34 to 46, characterized in that The first downlink resource and the first uplink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

52. The method according to any one of claims 41 to 51, characterized in that The method further comprises: If the network device receives the first uplink channel / signal in the first uplink resource, the network device sends a second SSB through a second downlink resource; wherein the second SSB is associated with SIB1 transmission.

53. The method according to claim 52, characterized in that The second downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

54. The method according to claim 52 or 53, characterized in that The first downlink resource and the second downlink resource are downlink resources of the same cell; or, the first downlink resource and the second downlink resource are downlink resources of different cells.

55. The method according to any one of claims 52 to 54, characterized in that The first downlink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

56. The method according to any one of claims 52 to 55, characterized in that The first uplink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

57. A terminal device, characterized in that: include: A determining unit, configured to determine a first uplink resource in a first cell; The first sending unit is configured to send a first uplink channel / signal through the first uplink resource, where the first uplink channel / signal is used to request sending a first system message.

58. The terminal device according to claim 57, characterized in that: The first system message is a system message of the first cell or a system message of the second cell.

59. The terminal device according to claim 57 or 58, characterized in that: The first system message includes a synchronization signal block SSB; the first system message includes a system message block SIB1; or the first system message includes SSB and SIB1.

60. The terminal device according to claim 59, characterized in that: The determining a first uplink resource in the first cell includes: The first uplink resource is determined according to the first downlink resource; wherein the first downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

61. The terminal device according to claim 60, characterized in that: The determining a first uplink resource in the first cell includes: The first uplink resource is determined according to a first downlink channel / signal received on the first downlink resource.

62. The terminal device according to claim 61, characterized in that: The first downlink channel / signal includes: a primary synchronization signal PSS and / or a secondary synchronization signal SSS.

63. The terminal device according to any one of claims 60 to 62, characterized in that: The first downlink resource and the first uplink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

64. The terminal device according to any one of claims 60 to 63, characterized in that: The terminal device is also used for: The first system message is received through the second downlink resource.

65. The terminal device according to claim 64, characterized in that: The second downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

66. The terminal device according to claim 64 or 65, characterized in that: The first downlink resource and the second downlink resource are downlink resources of the same cell; or, the first downlink resource and the second downlink resource are downlink resources of different cells.

67. The terminal device according to any one of claims 64 to 66, characterized in that: The first downlink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

68. The terminal device according to any one of claims 64 to 67, characterized in that: The first uplink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

69. The terminal device according to claim 57 or 58, characterized in that: The first system message is SIB1.

70. The terminal device according to claim 69, characterized in that: Before determining the first uplink resource in the first cell, the terminal device is further used to: A first SSB is received via a first downlink resource; wherein the first SSB is not associated with SIB1 transmission.

71. The terminal device according to claim 70, characterized in that: The first downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

72. The terminal device according to claim 70 or 71, characterized in that: The first SSB includes a first information field. When the value of the first information field is a first value, the first information field is used to determine that the first SSB is not associated with SIB1 transmission, or the first information field is used to determine that the terminal device can send the first uplink channel / signal through the first uplink resource.

73. The terminal device according to claim 72, characterized in that: The first information field is used to indicate the subcarrier offset of the first SSB, wherein: When the frequency band to which the first downlink resource belongs is the frequency range FR1, the first value is 30 or 31; or, When the frequency band to which the first downlink resource belongs is FR2, the first value is 14 or 15.

74. The terminal device according to any one of claims 70 to 73, characterized in that: One or more of the following in the first SSB are preset values: common subcarrier spacing, type A demodulation reference symbol TypeA DMRS position, SIB1 physical downlink control channel PDCCH configuration, cell prohibition, same-frequency reselection and spare bits.

75. The terminal device according to any one of claims 70 to 74, characterized in that: The determining a first uplink resource in the first cell includes: The first uplink resource is determined according to the first SSB.

76. The terminal device according to claim 75, characterized in that: The second information field in the first SSB is used to determine the time domain position and / or frequency domain position of the first uplink resource.

77. The terminal device according to claim 76, characterized in that: The second information field includes a SIB1 PDCCH configuration information field, and the SIB1 PDCCH configuration information field is used to determine a type 0-physical downlink control channel common search space Type0-PDCCH CSS set, wherein the time domain position of the first uplink resource is determined based on the time domain position of the Type0-PDCCH CSS set, and / or the frequency domain position of the first uplink resource is determined based on the frequency domain position of the Type0-PDCCH CSS set.

78. The terminal device according to claim 77, characterized in that: One or more of the following is satisfied between the first uplink resource and the Type0-PDCCH CSS set: The time domain position of the first uplink resource includes the first symbol of the time domain position where the Type0-PDCCH CSS set is located; The time domain position of the first uplink resource includes the last symbol of the time domain position where the Type0-PDCCH CSS set is located; The frequency domain position of the first uplink resource is the same as the frequency domain position of the Type0-PDCCH CSS set; and, The frequency domain resource size of the first uplink resource is the same as the frequency domain resource size of the Type0-PDCCH CSS set.

79. The terminal device according to any one of claims 70 to 74, characterized in that: The first downlink resource and the first uplink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

80. The terminal device according to any one of claims 69 to 79, characterized in that: The terminal device is also used for: A second SSB is received via a second downlink resource; wherein the second SSB is associated with SIB1 transmission.

81. The terminal device according to claim 80, characterized in that: The second downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

82. The terminal device according to claim 80 or 81, characterized in that: The first downlink resource and the second downlink resource are downlink resources of the same cell; or, the first downlink resource and the second downlink resource are downlink resources of different cells.

83. The terminal device according to any one of claims 80 to 82, characterized in that: The first downlink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

84. The terminal device according to any one of claims 80 to 83, characterized in that: The first uplink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

85. A network device, characterized in that: include: The detection unit is used to detect a first uplink channel / signal through a first uplink resource in a first cell, where the first uplink channel / signal is used to request to send a first system message.

86. The network device according to claim 85, characterized in that The first system message is a system message of the first cell or a system message of the second cell.

87. The network device according to claim 85 or 86, characterized in that: The first system message includes a synchronization signal block SSB; the first system message includes a system message block SIB1; or the first system message includes SSB and SIB1.

88. The network device according to claim 87, characterized in that: The first uplink resource is determined based on a first downlink resource, and the first downlink resource is a downlink resource of the first cell or a downlink resource of a second cell.

89. The network device according to claim 88, characterized in that The first uplink resource is determined based on a first downlink channel / signal transmitted on the first downlink resource.

90. The network device according to claim 89, characterized in that The first downlink channel / signal includes: a primary synchronization signal PSS and / or a secondary synchronization signal SSS.

91. The network device according to any one of claims 88 to 90, characterized in that: The first downlink resource and the first uplink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

92. The network device according to any one of claims 88 to 91, characterized in that: The network device is also used for: If the network device receives the first uplink channel / signal in the first uplink resource, the first system message is sent through a second downlink resource.

93. The network device according to claim 92, characterized in that: The second downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

94. The network device according to claim 92 or 93, characterized in that: The first downlink resource and the second downlink resource are downlink resources of the same cell; or, the first downlink resource and the second downlink resource are downlink resources of different cells.

95. The network device according to any one of claims 92 to 94, characterized in that: The first downlink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

96. The network device according to any one of claims 92 to 95, characterized in that: The first uplink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

97. The network device according to claim 85 or 86, characterized in that: The first system message is SIB1.

98. The network device according to claim 97, characterized in that: Before receiving the first uplink channel / signal through the first uplink resource in the first cell, the network device is further configured to: A first SSB is sent via a first downlink resource; wherein the first SSB is not associated with SIB1 transmission.

99. The network device according to claim 98, characterized in that: The first downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

100. The network device according to claim 98 or 99, characterized in that: The first SSB includes a first information field. When the value of the first information field is a first value, the first information field is used to determine that the first SSB is not associated with SIB1 transmission, or the first information field is used to determine that the terminal device can send the first uplink channel / signal through the first uplink resource.

101. The network device according to claim 100, characterized in that: The first information field is used to indicate the subcarrier offset of the first SSB, When the frequency band to which the first downlink resource belongs is the frequency range FR1, the first value is 30 or 31; or, When the frequency band to which the first downlink resource belongs is FR2, the first value is 14 or 15.

102. The network device according to any one of claims 90 to 101, characterized in that: One or more of the following in the first SSB are preset values: common subcarrier spacing, type A demodulation reference symbol position, SIB1 physical downlink control channel PDCCH configuration, cell barring, same-frequency reselection, and spare bits.

103. The network device according to any one of claims 90 to 102, characterized in that: The first uplink resource is determined based on the first SSB.

104. The network device according to claim 103, characterized in that The second information field in the first SSB is used to determine the time domain position and / or frequency domain position of the first uplink resource.

105. The network device according to claim 104, characterized in that: The second information field includes a SIB1 PDCCH configuration information field, and the SIB1 PDCCH configuration information field is used to determine a type 0-physical downlink control channel common search space Type0-PDCCH CSS set, wherein the time domain position of the first uplink resource is determined based on the time domain position of the Type0-PDCCH CSS set, and / or the frequency domain position of the first uplink resource is determined based on the frequency domain position of the Type0-PDCCH CSS set.

106. The network device according to claim 105, characterized in that One or more of the following is satisfied between the first uplink resource and the Type0-PDCCH CSS set: The time domain position of the first uplink resource includes the first symbol of the time domain position where the Type0-PDCCH CSS set is located; The time domain position of the first uplink resource includes the last symbol of the time domain position where the Type0-PDCCH CSS set is located; The frequency domain position of the first uplink resource is the same as the frequency domain position of the Type0-PDCCH CSS set; and, The frequency domain resource size of the first uplink resource is the same as the frequency domain resource size of the Type0-PDCCH CSS set.

107. The network device according to any one of claims 90 to 102, characterized in that: The first downlink resource and the first uplink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the first uplink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the first uplink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the first uplink resource is predefined or preconfigured.

108. The network device according to any one of claims 97 to 107, characterized in that: The network device is also used for: If the network device receives the first uplink channel / signal in the first uplink resource, it sends a second SSB through a second downlink resource; wherein the second SSB is associated with SIB1 transmission.

109. The network device according to claim 108, characterized in that The second downlink resource is a downlink resource of the first cell or a downlink resource of the second cell.

110. The network device according to claim 108 or 109, characterized in that: The first downlink resource and the second downlink resource are downlink resources of the same cell; or, the first downlink resource and the second downlink resource are downlink resources of different cells.

111. The network device according to any one of claims 108 to 110, characterized in that: The first downlink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first downlink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first downlink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first downlink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first downlink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

112. The network device according to any one of claims 108 to 111, characterized in that: The first uplink resource and the second downlink resource satisfy one or more of the following: The relationship between the time domain resources occupied by the first uplink resource and the time domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the frequency domain resources occupied by the first uplink resource and the frequency domain resources occupied by the second downlink resource is predefined or preconfigured; The relationship between the spatial filter information associated with the first uplink resource and the spatial filter information associated with the second downlink resource is predefined or preconfigured; and The relationship between the subcarrier spacing associated with the first uplink resource and the subcarrier spacing associated with the second downlink resource is predefined or preconfigured.

113. A terminal device, characterized in that: It comprises a memory and a processor, the memory is used to store a program, and the processor is used to call the program in the memory so that the terminal device executes the method as described in any one of claims 1-28.

114. A network device, characterized in that: It comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory so that the network device executes the method as described in any one of claims 29-56.

115. A device, characterized in that: It comprises a processor, which is used to call a program from a memory so that the device executes the method as described in any one of claims 1-56.

116. A chip, characterized in that: It comprises a processor, which is used to call a program from a memory so that a device equipped with the chip executes a method as described in any one of claims 1 to 56.

117. A computer-readable storage medium, characterized in that: A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 56.

118. A computer program product, characterized in that A program is included, which causes a computer to execute the method as claimed in any one of claims 1 to 56.

119. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 1 to 56.

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