Method and device for determining and indicating system information transmission resources

Abstract

A method for determining system information transmission resources, comprising: receiving first indication information sent by a network device, the first indication information being used to determine a target downlink resource; acquiring the target downlink resource according to the first indication information, wherein the terminal device receives the system information sent by the network device through the target downlink resource.

Description

[0001] This application claims priority to a Chinese patent application filed with the China Patent Office on October 19, 2019, with application number 201910996895.1 and invention name “Method and device for determining and indicating system information transmission resources”, the entire contents of which are incorporated by reference in this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a method and apparatus for determining and indicating system information transmission resources, network equipment, and terminal equipment. Background Art

[0003] Unlicensed spectrum is a spectrum allocated by countries and regions that can be used for radio equipment communications. This spectrum is generally considered to be a shared spectrum, that is, as long as communication equipment in different communication systems meets the regulatory requirements set by the country or region on the spectrum, they can use the spectrum without applying for exclusive spectrum authorization from the government.

[0004] In order to allow various communication systems that use unlicensed spectrum for wireless communication to coexist in a friendly manner on the spectrum, some countries or regions have stipulated regulatory requirements that must be met when using unlicensed spectrum. For example, communication equipment follows the "Listen Before Talk (LBT)" principle, that is, before a communication device sends a signal on a channel of the unlicensed spectrum, it needs to first perform channel sensing. Only when the channel sensing result is that the channel is idle, the communication device can send a signal; if the channel sensing result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot send a signal.

[0005] In the unlicensed spectrum, the LBT method can be a channel access method for frame-based equipment (FBE). The frame structure appears periodically, and a frame structure includes channel occupancy time (COT) and idle time. The communication equipment monitors the channel during the idle time. If the channel monitoring is successful, the COT in the next fixed frame period can be used to transmit signals; if the channel monitoring fails, the COT in the next fixed frame period cannot be used to transmit signals. How to receive the remaining system information (SI) in the NR-U (NR-based access to unlicensed spectrum, NR-U) system under the FBE channel access method is a problem that needs to be solved urgently. Summary of the invention

[0006] According to various embodiments of the present application, a method and apparatus for determining and indicating system information transmission resources, a network device, and a terminal device are provided.

[0007] According to one embodiment of the present application, the present application provides a method for determining system information transmission resources, which is applied to a terminal device, including: receiving first indication information sent by a network device, the first indication information being used to determine a target downlink resource; obtaining the target downlink resource according to the first indication information, wherein the terminal device receives the system information sent by the network device through the target downlink resource.

[0008] According to one embodiment of the present application, the present application provides a method for indicating system information transmission resources, which is applied to a network device and includes: sending first indication information to a terminal device, wherein the first indication information is used to determine a target downlink resource, and the terminal device receives the system information sent by the network device through the target downlink resource.

[0009] According to one embodiment of the present application, the present application provides a device for determining system information transmission resources, which is configured in a terminal device and at least includes: a receiving module for receiving first indication information sent by a network device, wherein the first indication information is used to determine a target downlink resource; an acquisition module for acquiring the target downlink resource according to the first indication information, wherein the terminal device receives the system information sent by the network device through the target downlink resource.

[0010] According to one embodiment of the present application, the present application provides an indication device for system information transmission resources, which is configured in a network device and at least includes: an indication module, used to send first indication information to a terminal device, the first indication information is used to determine a target downlink resource, and the terminal device receives the system information sent by the network device through the target downlink resource.

[0011] According to one embodiment of the present application, the present application provides a terminal device, including a processor, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the processor, and the program includes instructions for executing operations in any method applied to the terminal device in an embodiment of the present application.

[0012] According to one embodiment of the present application, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to perform part or all of the operations described in the method for determining system information transmission resources.

[0013] According to an embodiment of the present application, the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the operations described in any method applied to a terminal device in the first aspect of the method for determining system information transmission resources of the present application embodiment. The computer program product may be a software installation package.

[0014] According to one embodiment of the present application, the present application provides a network device, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the processor, and the program includes instructions for executing the operations in any method applied to the network device in the embodiments of the present application.

[0015] According to one embodiment of the present application, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to perform part or all of the operations described in the method for indicating system information transmission resources.

[0016] According to one embodiment of the present application, the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the operations described in the method for indicating system information transmission resources. The computer program product may be a software installation package.

[0017] It can be seen that when the network device sends system information to the terminal device, the network device configures the terminal device with indication information that can be used to determine the target downlink resources for receiving the system information. Therefore, for network devices of different device types, the terminal device can adopt the corresponding system information receiving method. Therefore, in the NR-U (NR-based access to unlicensed spectrum, NR-U) system, when the network device is FBE, the terminal device can reduce the detection complexity of the system information on the target downlink resources.

[0018] The details of one or more embodiments of the present application are set forth in the following drawings and description. Other features, objects, and advantages of the present application will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural diagram of a communication system disclosed in an embodiment of the present application.

[0021] Figure 2 It is a schematic diagram of a FBE-based channel access method provided in an embodiment of the present application.

[0022] Figure 3 This is a schematic diagram of SSB candidate positions within a DRS window provided in an embodiment of the present application.

[0023] Figure 4 It is a schematic flowchart of a method for determining system information transmission resources proposed in an embodiment of the present application.

[0024] Figure 5 It is a schematic flow chart of a method for indicating system information transmission resources proposed in an embodiment of the present application.

[0025] Figure 6 It is a schematic diagram of a device for determining system information transmission resources according to an embodiment of the present application.

[0026] Figure 7 It is a structural diagram of a terminal device disclosed in an embodiment of the present application.

[0027] Figure 8 It is a schematic diagram of a device for indicating system information transmission resources according to an embodiment of the present application.

[0028] Fig. 9 It is a schematic diagram of another device for indicating system information transmission resources according to an embodiment of the present application.

[0029] Fig.10 It is a schematic diagram of another device for indicating system information transmission resources according to an embodiment of the present application.

[0030] Fig.11 It is a schematic diagram of another device for indicating system information transmission resources according to an embodiment of the present application.

[0031] Fig.12 It is a structural diagram of a network device disclosed in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] 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, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-based access to unlicensed spectrum, LTE-U) system, NR-U system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, Wireless Local Area Network (WLAN) Networks, WLAN), Wireless Fidelity (WiFi), next generation communication systems or other communication systems, etc.

[0034] 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 (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), and vehicle to vehicle (Vehicle to Vehicle, V2V) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0035] For example, the communication system 100 used in the embodiment of the present application is as follows: Figure 1 As shown. The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or referred to as a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographical area, and may communicate with terminal devices located in the coverage area. In one implementation, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

[0036] The communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110. As used herein, "terminal device" includes but is not limited to connection via a wired line, such as via a Public Switched Telephone Networks (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection; and / or another data connection / network; and / or via a wireless interface, such as, for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and / or a device of another terminal device configured to receive / send communication signals; and / or an Internet of Things (IoT) device. A terminal device configured to communicate via a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communications capabilities; PDAs that may include radiotelephones, pagers, Internet / Intranet access, Web browsers, notepads, calendars, and / or Global Positioning System (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A terminal device may refer to an access terminal, user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), 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 5G network, or a terminal device in a future evolved PLMN, etc.

[0037] In one implementation, terminal devices 120 may perform device-to-device (D2D) communication.

[0038] In one implementation, a 5G system or a 5G network may also be referred to as a New Radio (NR) system or a NR network.

[0039] Figure 1 It is a structural diagram of a communication system disclosed in an embodiment of the present application, which exemplarily shows a network device and two terminal devices. In one implementation, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area, which is not limited in the embodiment of the present application.

[0040] In one implementation, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0041] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be referred to as a communication device. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above and will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0042] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0043] The method of the embodiment of the present application can be applied to communications in unlicensed spectrum, and can also be applied to other communication scenarios, such as communication scenarios in licensed spectrum.

[0044] Unlicensed spectrum is a spectrum that can be used for radio equipment communication divided by countries and regions. This spectrum can be considered as a shared spectrum, that is, as long as the communication equipment in different communication systems meets the regulatory requirements set by the country or region on the spectrum, they can use the spectrum without applying for exclusive spectrum authorization from the government. In order to allow various communication systems that use unlicensed spectrum for wireless communication to coexist in a friendly manner on the spectrum, when communicating on the unlicensed spectrum, the communication equipment can follow the principle of Listen Before Talk (LBT), that is, before the communication equipment sends a signal on the channel of the unlicensed spectrum, it needs to perform channel sensing (or channel detection) first. Only when the channel sensing result is that the channel is idle, the communication equipment can send a signal; if the result of the channel sensing performed by the communication equipment on the unlicensed spectrum is that the channel is busy, the signal cannot be sent. In one implementation, the bandwidth of LBT is 20MHz, or an integer multiple of 20MHz.

[0045] From the perspective of network deployment, LBT includes two types: one is the channel access method based on load equipment (LBE), that is, the communication equipment can monitor the channel on the unlicensed spectrum after the service arrives, and start sending signals after the channel monitoring is successful. The other is the channel access method based on frame structure equipment (FBE). Figure 2 is a schematic diagram of a channel access method based on FBE provided in an embodiment of the present application. Figure 2 As shown, in the channel access method of FBE, the frame structure appears periodically, and its period length does not exceed the preset value, such as 200ms. A frame structure includes COT (length does not exceed 95% of the fixed frame period) and idle time (length is at least 5% of the channel occupancy time, the minimum value is 100us, and it is located at the end of the fixed frame period). The communication device performs clear channel assessment (CCA), and the communication device performs channel monitoring on the channel during the idle time (IdlePeriod). If the channel monitoring is successful, the channel occupancy time in the next fixed frame period can be used to transmit signals; if the channel monitoring fails, the channel occupancy time in the next fixed frame period cannot be used to transmit signals. In other words, the channel resources that the communication device can use for service transmission appear periodically.

[0046] In the NR-U system based on LBE, the initial access process of the terminal device can be completed by detecting the Discovery Reference Signal (DRS). DRS includes a synchronization signal block (SynchronizationSignal / PBCH Block, SSB or SS / PBCH Block), and DRS is sent within the DRS window. The DRS window appears periodically, and there can be multiple candidate positions for transmitting SSB in the DRS window. When the network device sends SSB in the DRS window, it can make multiple LBT attempts, and after the LBT is successful, the SSB can be transmitted through at least one of the multiple candidate positions. Among them, the quasi-co-located (QCL) assumption (or QCL relationship) between the multiple SSB candidate positions is determined by the Q value. For example, the SSB transmitted at the SSB candidate position with the same value after the index of the multiple SSB candidate positions is modulo Q can be considered to have the same QCL assumption. The Q value can be preset or indicated by the base station. In one implementation, if the Q value is indicated, the Q value may be indicated by the base station through system information such as a master information block (MIB) or a system information block (SIB), or the Q value may be indicated by the base station through a physical broadcast channel (PBCH). In one implementation, the Q value may be one of 1, 2, 4, and 8. As an example, assuming that the Q value is 4, the SSBs transmitted at the first SSB candidate position, the fifth SSB candidate position, the ninth SSB candidate position, etc., which have the same value after modulo Q, have the same QCL assumption.

[0047] For example, Figure 3 Schematic diagram of a candidate SSB position in a DRS window provided by an embodiment of the present application. Figure 3 As shown in Example 1 in , the set of SSB candidate positions in the DRS window includes 20 SSB candidate positions, the Q value is 4, and the SSB candidate positions with the same QCL assumption are represented by the same QCL number. Specifically, the terminal device can assume that the SSBs sent at the SSB candidate positions with the same QCL number have the same QCL relationship, or, if the network device sends SSBs at the SSB candidate positions with the same QCL number, then the network device should use the same beam.

[0048] The SSB to be sent includes at least one SSB in the SSB set. For example, the SSB set includes SSB0, 1, 2, and 3, the SSB candidate position with a QCL number of 0 is used to send SSB0, the SSB candidate position with a QCL number of 1 is used to send SSB1, the SSB candidate position with a QCL number of 2 is used to send SSB2, and the SSB candidate position with a QCL number of 3 is used to send SSB3. The SSB to be sent includes at least one SSB in the SSB set. For example, assuming that the SSB to be sent includes SSB0, SSB2, and SSB3, then the SSB candidate positions numbered 0, 2, and 3 in Example 1 may all be used for SSB transmission.

[0049] In different DRS windows, the base station can select the candidate position that obtains the channel use right from the SSB candidate position in the DRS window according to the LBT result for SSB transmission. During the initial access process of the terminal device, if the SSB is detected, the terminal device can determine the control resource set (Control-resource set, CORESET) of the Type0-PDCCH common search space (Common search space, CSS) set according to the MIB in the PBCH. The PDCCH transmitted through the resources in the control resource set can be used to schedule the PDSCH carrying the remaining minimum system information (Remaining Minimum System Information, RMSI). Therefore, the terminal device can receive the corresponding RMSI information according to the SSB. Among them, RMSI can also be considered as System Information Block 1 (System Information Block 1, SIB1).

[0050] In the LBE-based NR-U system, when there are multiple SSB candidate positions in the DRS window, each SSB candidate position can be associated with a control resource set for transmitting RMSI. In this case, the control resource set for transmitting RMSI can also have multiple candidate positions. When receiving RMSI, the terminal device can, for example, perform combined detection on RMSI with a QCL relationship based on the Q value.

[0051] In the FBE-based NR-U system, since the frame structure appears periodically, if LBT is successful, the channel occupancy time in the next fixed frame period can be used to transmit signals, or in other words, the SSB or DRS in the fixed frame period can be transmitted. In this case, multiple SSB candidate positions may not be included in the DRS window. For example, whether the SSB can be sent at the SSB candidate position is determined by whether the base station obtains the right to use the channel in the fixed frame period where the SSB candidate position is located. Therefore, in one implementation, in this case, the Q value may not be required to determine the QCL assumption between multiple SSB candidate positions, or the base station may not need to indicate the Q value, or the Q value indicated by the base station is a special state such as a reserved state, or the Q value may be a preset value such as the Q value is preset to the maximum value or minimum value in the value range.

[0052] For example, Figure 3 As shown in Example 2 in , the SSB candidate position set in the DRS window includes 4 SSB candidate positions, and the Q value is preset to 8, so it can be considered that one SSB includes 1 candidate position in the DRS window. The terminal device can assume that the SSBs sent at these SSB candidate positions do not have the same QCL relationship, or if the network device sends SSBs at different SSB candidate positions, then the network device can use different beams.

[0053] Similarly, the SSB to be sent includes at least one SSB in the SSB set. For example, the SSB set includes SSB0, 1, 2, and 3. The SSB candidate position numbered 0 in Example 2 is used to send SSB0, the SSB candidate position numbered 1 is used to send SSB1, the SSB candidate position numbered 2 is used to send SSB2, and the SSB candidate position numbered 3 is used to send SSB3. Assuming that the SSB to be sent includes SSB0, SSB2, and SSB3, the SSB candidate positions numbered 0, 2, and 3 in Example 2 can be used for SSB transmission when the network device obtains the right to use the channel with a fixed frame period.

[0054] In the FBE-based NR-U system, each SSB candidate position can also be associated with a control resource set for transmitting RMSI. When there is only one SSB candidate position for a certain SSB to be sent in the DRS window, in this case, the control resource set for transmitting the RMSI corresponding to the SSB also has only one candidate position. When receiving RMSI, the terminal device can perform combined detection of RMSI without using the Q value.

[0055] However, in the initial access phase, when the terminal device detects SSB, it does not know whether the current system belongs to the LBE or FBE channel access mode. Therefore, when receiving RMSI, even for the NR-U system under FBE, it will still try to detect multiple RMSI control resource sets, such as combining and detecting RMSIs with QCL relationships based on Q values, thereby increasing the complexity of system detection. This application mainly considers the enhancement of the sending and receiving methods of system information under the FBE structure.

[0056] based on Figure 1 For a schematic diagram of the communication system shown, see Figure 4 , Figure 4 : is a schematic flow chart of a method for determining system information transmission resources proposed in an embodiment of the present application, the method including part or all of the following contents:

[0057] Operation 402, receiving first indication information sent by a network device, where the first indication information is used to determine a target downlink resource;

[0058] Operation 404: Acquire target downlink resources according to the first indication information, wherein the terminal device receives system information sent by the network device through the target downlink resources.

[0059] Optionally, the device type of the network device includes: a frame structure-based device FBE and a load-based device LBE.

[0060] It should be understood that in the embodiment of the present application, the device type of the network device is FBE, which may mean that the network device uses the LBT method based on the frame structure when performing LBT; the device type of the network device is LBE, which may mean that the network device uses the LBT method based on the load when performing LBT.

[0061] Optionally, the first indication information is configured in an independent information domain.

[0062] Optionally, the first indication information is used to determine that the device type of the network device is FBE.

[0063] Optionally, the method includes at least one of the following: the first indication information is carried in a master information block MIB; the first indication information is carried in a system information block SIB; the first indication information is carried in a physical broadcast channel PBCH; and the first indication information is carried in a primary synchronization signal PSS or a secondary synchronization signal SSS.

[0064] Optionally, the first indication information is carried in the MIB, including: the first indication information multiplexes the common subcarrier spacing subCarrierSpacingCommon command field in the MIB. This is mainly because, in the NR-U system, the subcarrier spacing of the control resource set of the SSB and Type0-PDCCH CSS set on the same carrier is always the same, so this information field may not be used to indicate the subcarrier spacing. Accordingly, in the NR-U system, this information field may be multiplexed to indicate that the device type of the network device is FBE or LBE.

[0065] Optionally, the first indication information is carried in the PBCH, including: the first indication information is multiplexed in one or more bits of a specified position in the PBCH, wherein the specified position at least includes:

[0066] Optionally, the first indication information is a specified information state of the second indication information, and the specified information state is used to determine that the device type of the network device is FBE.

[0067] Optionally, the method includes at least one of the following: the second indication information is used to determine the quasi-co-site QCL assumption of the synchronization signal block SSB; or, the second indication information is used to configure a control resource set of a Type0-PDCCH common search space CSS set, and the physical downlink control channel PDCCH in the Type0-PDCCH CSS set is used to schedule the transmission of the system information.

[0068] Optionally, the physical downlink control channel PDCCH in the Type0-PDCCH CSS set is used to schedule transmission of the system information, where the system information is RMSI.

[0069] In a specific implementation, the second indication information indicates a Q value, and the first indication information is a first information state of the second indication information. For example, the values ​​of Q include 1, 2, 4, and 8, which can be indicated by 2 bits, as shown in the following Table 1. The first information state is that the state of the 2 bits is "11", or in other words, when the information state of Q is "11", it indicates that the device type of the current network device may be FBE.

[0070] Table 1

[0071] 00 01 10 11 1 2 4 8

[0072] In a specific implementation, the second indication information indicates a Q value, and the first indication information is a first information state of the second indication information. For example, the values ​​of Q include 2, 4, and 8, which can be indicated by 2 bits, as shown in the following Table 2. The first information state is that the state of the 2 bits is "11", or in other words, when the information state of Q is "11", it indicates that the device type of the current network device is FBE.

[0073] Table 2

[0074] 00 01 10 11 2 4 8 Reserved / FBE

[0075] In a specific implementation, the second indication information is used to configure a control resource set of a Type0-PDCCH common search space CSS set, and the first indication information may be at least one configuration indicated by the second indication information. For example, the second indication information is used to indicate N control resource set configurations, wherein M1 of the N control resource set configurations are applied to LBE, and M2 of the N control resource set configurations are applied to FBE. The terminal device may determine whether the network device is FBE or LBE based on the received second indication information.

[0076] Optionally, obtaining the target downlink resource according to the first indication information includes: when it is determined according to the first indication information that the device type of the network device is FBE, the target downlink resource is the first downlink resource corresponding to FBE; or, when it is determined according to the first indication information that the device type of the network device is LBE, the target downlink resource is the second downlink resource corresponding to LBE; wherein the first downlink resource and the second downlink resource are different.

[0077] Optionally, the first downlink resource is not determined based on the Q value. Optionally, after the terminal device determines that the network device is FBE based on the first indication information, the terminal device may not perform RMSI merge detection based on the Q value when receiving the RMSI, or the terminal device may assume that a certain SSB to be sent within the DRS window has only one SSB candidate position, and the control resource set used to transmit the RMSI corresponding to the SSB also has only one candidate position.

[0078] Optionally, the second downlink resource is determined according to the Q value. Optionally, after the terminal device determines that the network device is an LBE according to the first indication information, the terminal device may perform a combined detection of the RMSI according to the Q value when receiving the RMSI, or the terminal device may assume that the SSB candidate position for transmitting the SSB to be sent within the DRS window is determined according to the Q value, and the control resource set for transmitting the RMSI corresponding to the SSB to be sent is also determined according to the Q value.

[0079] based on Figure 1For a schematic diagram of the communication system shown, see Figure 5 This is a schematic flow chart of a method for indicating system information transmission resources proposed in an embodiment of the present application, which method includes part or all of the following contents:

[0080] Operation 502: Send first indication information to a terminal device, where the first indication information is used to determine a target downlink resource, and the terminal device receives system information sent by the network device through the target downlink resource.

[0081] Optionally, the device type of the network device includes: a frame structure-based device FBE and a load-based device LBE; and the first indication information is configured in an independent information domain.

[0082] Optionally, before sending the first indication information to the terminal device, the method further includes: configuring the first indication information to be used to determine the device type of the network device.

[0083] Optionally, when the device type of the network device is FBE, the first indication information is sent to the terminal device, including at least one of the following: carrying the first indication information in the main information block MIB; carrying the first indication information in the system information block SIB; carrying the first indication information in the physical broadcast channel PBCH; carrying the first indication information in the primary synchronization signal PSS or the secondary synchronization signal SSS.

[0084] Optionally, carrying the first indication information in the MIB includes: multiplexing the first indication information in a common subcarrier spacing subCarrierSpacingCommon command field in the MIB. Carrying the first indication information in a physical broadcast channel PBCH includes: multiplexing the first indication information in one or more bits at a specified position in the PBCH, wherein the specified position includes at least:

[0085] Optionally, before sending the first indication information to the terminal device, the method further includes: configuring the first indication information as a designated information state of the second indication information, the designated information state being used to indicate a device type of the network device.

[0086] Optionally, when the device type of the network device is FBE, the method includes at least one of the following: the second indication information is used to instruct the terminal device to determine the quasi-co-location QCL assumption of the synchronization signal block SSB; or, the second indication information is used to instruct the terminal device to configure a control resource set of a Type0-PDCCH common search space CSS set, and the physical downlink control channel PDCCH in the Type0-PDCCH CSS set is used to schedule the transmission of the system information.

[0087] In addition, when the network device is FBE, the network device performs LBT according to the frame structure that appears periodically, wherein a frame structure includes the channel occupancy time COT and the idle time. The network device performs LBT on the channel during the idle time. If the LBT is successful, the channel occupancy time in the next fixed frame period can be used to transmit signals; if the LBT fails, the channel occupancy time in the next fixed frame period cannot be used to transmit signals. Accordingly, when the uplink transmission of the terminal device occurs within the frame period, if the terminal device detects a downlink signal or channel, such as PDCCH, SSB, PBCH, RMSI, common PDCCH (GC-PDCCH), etc., within the frame period, then the terminal device may perform uplink transmission within the frame period. In this case, the terminal device also needs to know at least one of the information such as the channel occupancy time, idle time, frame period length, etc. of the frame period to determine that the uplink transmission of the terminal device occurs within the frame period.

[0088] Therefore, an embodiment of the present application further provides a method for a terminal device to determine that uplink transmission occurs within a frame period. The method may include at least part of the following contents:

[0089] The network device sends third indication information to the terminal device, and the third indication information is used to determine at least one of the frame period, the channel occupancy time and the idle time. Accordingly, the terminal device receives the third indication information sent by the network device, and determines whether the uplink transmission occurs within the frame period according to the third indication information.

[0090] In one implementation, the third indication information indicates at least one of a frame period, a channel occupied time, and an idle time. For example, the third indication information indicates a frame period, and the terminal device determines the channel occupied time and the idle time according to the third indication information and a preset rule, such as the idle time does not exceed 5% of the frame period and / or the channel occupied time includes an integer number of time slots or an integer number of symbols.

[0091] In one implementation, the third indication information may be configured via Radio Resource Control (RRC) signaling and / or MAC CE.

[0092] In one implementation, the third indication information may be indicated by a PDCCH. In one implementation, the PDCCH is a first GC-PDCCH. The first GC-PDCCH is transmitted through a Type3-PDCCH CSS set, and the first GC-PDCCH corresponds to an SFI-RNTI.

[0093] It should be understood that a terminal device in an idle state cannot receive RRC signaling or MAC CE, nor can it receive the first GC-PDCCH. In order to enable a terminal device in an idle state to also receive the third indication information, the third indication information may be indicated in other ways.

[0094] In one implementation, the third indication information may be indicated through MIB or PBCH or SIB.

[0095] In one implementation, the third indication information can be indicated by a second GC-PDCCH, wherein the second GC-PDCCH is transmitted through a Type0-PDCCH CSS set, or the second GC-PDCCH is transmitted through a Type0A-PDCCH CSS set, or the second GC-PDCCH is transmitted through a Type1-PDCCH CSS set, or the second GC-PDCCH is transmitted through a Type2-PDCCH CSS set.

[0096] In one implementation, the second GC-PDCCH corresponds to a first radio network temporary identifier (Radio Network Temporary Identifier, RNTI), wherein the first RNTI is indicated by MIB or PBCH or SIB, or the first RNTI is one of the following RNTIs: cell RNTI (Cell RNTI, C-RNTI), temporary C-RNTI (Temporary C-RNTI, TC-RNTI), paging RNTI (Paging RNTI, P-RNTI), system information RNTI (System Information RNTI, SI-RNTI), random access RNTI (Random Access RNTI, RA-RNTI), common control RNTI (Common Control RNTI, CC-RNTI), group RNTI (Group RNTI, G-RNTI), slot format indication RNTI (Slot Format Indication RNTI, SFI-RNTI), interruption RNTI (Interruption RNTI, INT-RNTI).

[0097] In one implementation, the second GC-PDCCH may also be transmitted via a Type3-PDCCH CSS set.

[0098] In this embodiment, the terminal devices in both the connected state and the terminal state can obtain the third indication information, so that the terminal devices can determine whether the uplink transmission occurs within the frame period according to the third indication information.

[0099] The above mainly introduces the scheme of the embodiment of the present application from the perspective of the interaction between various network elements. It can be understood that in order to realize the above functions, the terminal equipment and the network equipment include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm operations of each example described in the embodiments disclosed in this document, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0100] The embodiment of the present application can divide the functional modules of the terminal device according to the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0101] In a system information transmission resource determination device 600 disclosed in an embodiment of the present application, configured in a terminal device, Figure 6 6 is a schematic diagram of a device for determining system information transmission resources according to an embodiment of the present application, as shown in FIG. 6, which at least includes:

[0102] A receiving module 602 is configured to receive first indication information sent by a network device, where the first indication information is used to determine a target downlink resource;

[0103] The acquisition module 604 is used to acquire the target downlink resource according to the first indication information, wherein the terminal device receives the system information sent by the network device through the target downlink resource.

[0104] Optionally, the device type of the network device includes: a frame structure-based device FBE and a load-based device LBE, and the first indication information is configured in an independent information domain.

[0105] Optionally, the first indication information is used to determine that the device type of the network device is FBE.

[0106] Optionally, it includes at least one of the following: the first indication information is carried in the master information block MIB; the first indication information is carried in the system information block SIB; the first indication information is carried in the physical broadcast channel PBCH; and the first indication information is carried in the primary synchronization signal PSS or the secondary synchronization signal SSS.

[0107] Optionally, the first indication information is carried in the MIB, including: the first indication information multiplexes the common subcarrier spacing subCarrierSpacingCommon command field in the MIB; the first indication information is carried in the PBCH, including: the first indication information multiplexes one or more bits in a specified position in the PBCH, wherein the specified position includes at least:

[0108] Optionally, the first indication information is a specified information state of the second indication information, and the specified information state is used to determine that the device type of the network device is FBE.

[0109] Optionally, the second indication information is used to instruct the terminal device to determine the quasi-co-location QCL assumption of the synchronization signal block SSB; or, the second indication information is used to instruct the terminal device to configure a control resource set of a Type0-PDCCH common search space CSS set, and the physical downlink control channel PDCCH in the Type0-PDCCH CSS set is used to schedule the transmission of system information.

[0110] Optionally, when the device type of the network device is determined to be FBE according to the first indication information, the target downlink resource is the first downlink resource corresponding to FBE; or, when the device type of the network device is determined to be LBE according to the first indication information, the target downlink resource is the second downlink resource corresponding to LBE; wherein the first downlink resource and the second downlink resource are different.

[0111] Figure 7 602 is a schematic diagram of the structure of a terminal device disclosed in an embodiment of the present application. When the receiving module 602 is a communication interface, when the acquisition module 604 is a processor, the memory is used to store the information received by the receiving module 602, and when the acquisition module 604 determines the system information, the terminal device involved in the embodiment of the present application can be Figure 6 The network devices shown.

[0112] In the case of adopting an integrated module, a system information transmission resource indication device 800 disclosed in an embodiment of the present application is configured in a network device. Figure 8 8 is a schematic diagram of a device for indicating system information transmission resources according to an embodiment of the present application, as shown in FIG. 8 , which at least includes:

[0113] The indication module 802 is used to send first indication information to the terminal device, where the first indication information is used to determine the target downlink resource, and the terminal device receives the system information sent by the network device through the target downlink resource.

[0114] Optionally, the device type of the network device includes: a frame structure-based device FBE and a load-based device LBE; and the first indication information is configured in an independent information domain.

[0115] Fig. 9 It is a schematic diagram of another device for indicating system information transmission resources according to an embodiment of the present application, as shown in 9, which at least includes: a first configuration module 902, which is used to configure first indication information for determining the device type of a network device.

[0116] Fig.10 10 is a schematic diagram of another indication device for system information transmission resources according to an embodiment of the present application. As shown in FIG. 10 , the indication module 802 includes at least one of the following:

[0117] A first indication unit 1002, configured to carry first indication information in a master information block MIB;

[0118] The second indication unit 1004 is configured to carry the first indication information in a system information block SIB;

[0119] The third indication unit 1006 is configured to carry the first indication information in a physical broadcast channel PBCH;

[0120] The fourth indication unit 1008 is configured to carry the first indication information in the primary synchronization signal PSS or the secondary synchronization signal SSS.

[0121] Optionally, the first indication unit 1002 is used to multiplex the first indication information in a common subcarrier spacing subCarrierSpacingCommon command field in the MIB; the third indication unit 1006 is used to multiplex the first indication information in one or more bits of a specified position in the PBCH, wherein the specified position includes at least:

[0122] Fig.11 It is a schematic diagram of another device for indicating system information transmission resources according to an embodiment of the present application, as shown in 11, which at least includes: a second configuration module 1102, used to configure the first indication information as a specified information state of the second indication information, and the specified information state is used to indicate the device type of the network device.

[0123] Optionally, when the device type of the network device is FBE, it includes at least one of the following: the second indication information is used to instruct the terminal device to determine the quasi-co-location QCL assumption of the synchronization signal block SSB; or, the second indication information is used to instruct the terminal device to configure a control resource set of a Type0-PDCCH common search space CSS set, and the physical downlink control channel PDCCH in the Type0-PDCCH CSS set is used to schedule the transmission of the system information.

[0124] Fig.12 Schematic diagram of the structure of a network device disclosed in the embodiment of the present application. Fig.12As shown, it includes a processor 1202 , a communication interface 1204 and a memory 1206 .

[0125] Figure 8-11 The instruction module 802 in the embodiment is used to control and manage the actions of the terminal device, for example, to support the terminal device to execute Figure 5 Operation 501 in and / or other processes for the technology described herein. It is also used to support communication between the terminal device and other devices, such as communication with network devices.

[0126] Fig. 9 The first configuration module 902, Fig.11 The second configuration module 1102 is used to control and manage the actions of the terminal device.

[0127] An embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to perform part or all of the operations described by the terminal device in the above method embodiment.

[0128] The present application also provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the operations described by the terminal device in the above method embodiment. The computer program product may be a software installation package.

[0129] The operation of the method or algorithm described in the embodiment of the present application can be implemented in a hardware manner, or it can be implemented by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read Only Memory, ROM), erasable programmable read-only memory (Erasable Programmable ROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), registers, hard disks, mobile hard disks, read-only compact disks (CD-ROM) or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC (Application Specific Integrated Circuit). In addition, the ASIC can be located in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium can also exist as discrete components in an access network device, a target network device, or a core network device.

[0130] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application 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 embodiments 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 devices. 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 a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0131] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above description is only the specific implementation method of the embodiments of the present application and is not intended to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A method for determining system information transmission resources, the method being applied to a terminal device, comprising: Receiving first indication information sent by a network device, where the first indication information is used to determine a target downlink resource; as well as Acquire the target downlink resource according to the first indication information, wherein the terminal device receives the system information sent by the network device through the target downlink resource; The device type of the network device includes: a frame structure-based device FBE and a load-based device LBE, and the first indication information is configured in an independent information domain; The first indication information is a specified information state in the second indication information, and the specified information state is used to determine that the device type of the network device is FBE.

2. The method according to claim 1, characterized in that The method comprises at least one of the following: The first indication information is carried in a master information block MIB; The first indication information is carried in a system information block SIB; The first indication information is carried in a physical broadcast channel PBCH; as well as, The first indication information is carried in a primary synchronization signal PSS or a secondary synchronization signal SSS.

3. The method according to claim 2, characterized in that The first indication information is carried in the MIB and includes: The first indication information multiplexes the common subcarrier spacing subCarrierSpacingCommon command field in the MIB; The first indication information is carried in the PBCH and includes: The first indication information is multiplexed in one or more bits at a specified position in the PBCH.

4. The method according to claim 1, characterized in that The method comprises at least one of the following: The second indication information is used to determine a quasi co-location QCL assumption of a synchronization signal block SSB; or, The second indication information is used to configure a control resource set of a Type0-PDCCH common search space CSS set, and a physical downlink control channel PDCCH in the Type0-PDCCH CSS set is used to schedule transmission of the system information.

5. The method according to any one of claims 1 to 4, characterized in that The acquiring the target downlink resource according to the first indication information includes: when it is determined according to the first indication information that the device type of the network device is FBE, the target downlink resource is a first downlink resource corresponding to FBE; or, When it is determined according to the first indication information that the device type of the network device is LBE, the target downlink resource is a second downlink resource corresponding to the LBE; The first downlink resource and the second downlink resource are different.

6. A method for indicating system information transmission resources, the method being applied to a network device, comprising: Sending first indication information to a terminal device, where the first indication information is used to determine a target downlink resource, and the terminal device receives system information sent by the network device through the target downlink resource; The device types of the network device include: frame structure-based device FBE and load-based device LBE; The first indication information is configured in an independent information field; Before sending the first indication information to the terminal device, the method further includes: The first indication information is configured as a designated information state of the second indication information, where the designated information state is used to indicate that a device type of the network device is FBE.

7. A device for determining system information transmission resources, configured in a terminal device, comprising at least: A receiving module, configured to receive first indication information sent by a network device, wherein the first indication information is used to determine a target downlink resource; an acquisition module, configured to acquire the target downlink resource according to the first indication information, wherein the terminal device receives the system information sent by the network device through the target downlink resource; The device type of the network device includes: a frame structure-based device FBE and a load-based device LBE, and the first indication information is configured in an independent information domain; The first indication information is a specified information state in the second indication information, and the specified information state is used to determine that the device type of the network device is FBE.

8. A system information transmission resource indication device, configured in a network device, comprising at least: An indication module, used to send first indication information to a terminal device, where the first indication information is used to determine a target downlink resource, and the terminal device receives the system information sent by the network device through the target downlink resource; The device types of the network device include: frame structure-based device FBE and load-based device LBE; The first indication information is configured in an independent information field; The device also includes: The second configuration module is used to configure the first indication information as a designated information state of the second indication information, where the designated information state is used to indicate that the device type of the network device is FBE.

9. The device according to claim 8, characterized in that In the case where the device type of the network device is FBE, the indication module includes at least one of the following: A first indication unit, used to carry the first indication information in a master information block MIB A second indication unit, configured to carry the first indication information in a system information block SIB; A third indication unit is used to carry the first indication information in a physical broadcast channel PBCH The fourth indication unit is used to carry the first indication information in a primary synchronization signal PSS or a secondary synchronization signal SSS.

10. The device according to claim 9, characterized in that The first indication unit is used to multiplex the first indication information into a common subcarrier spacing subCarrierSpacingCommon command field in the MIB; The third indication unit is used to multiplex the first indication information into one or more bits at a specified position in the PBCH.

11. The device according to claim 8, characterized in that When the device type of the network device is FBE, the method includes at least one of the following: The second indication information is used to instruct the terminal device to determine a quasi co-location QCL assumption of a synchronization signal block SSB; or, The second indication information is used to instruct the terminal device to configure a control resource set of a Type0-PDCCH common search space CSS set, and the physical downlink control channel PDCCH in the Type0-PDCCH CSS set is used to schedule the transmission of the system information.

12. A terminal device, characterized in that: The method comprises a processor, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for executing the steps in the method according to any one of claims 1 to 5.

13. A network device, characterized in that: The method comprises a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for executing the steps in the method according to claim 6.

14. A computer-readable storage medium, characterized in that: It stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute the method according to any one of claims 1 to 5 or 6.

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