CN114208353A

CN114208353A - Method and device for determining and indicating system information transmission resources

Info

Publication number: CN114208353A
Application number: CN202080056890.1A
Authority: CN
Inventors: 吴作敏
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-10-19
Filing date: 2020-02-12
Publication date: 2022-03-18
Also published as: WO2021073018A1

Abstract

A method for determining system information transmission resources comprises the following steps: receiving first indication information sent by network equipment, wherein the first indication information is used for determining target downlink resources; and acquiring the target downlink resource according to the first indication information, wherein the terminal equipment receives the system information sent by the network equipment through the target downlink resource.

Description

Method and device for determining and indicating system information transmission resources

Cross Reference to Related Applications

The present application claims priority of chinese patent application with application number 201910996895.1, entitled "method and apparatus for determining and indicating system information transmission resource" filed in 2019, 10/19.s, which is incorporated herein by reference in its entirety.

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for determining and indicating system information transmission resources, a network device, and a terminal device.

Background

Unlicensed spectrum is a nationally and regionally divided spectrum available for communication by radio devices, which is generally considered a shared spectrum, i.e., a spectrum that may be used by communication devices in different communication systems as long as the regulatory requirements set by the country or region on the spectrum are met, and no proprietary spectrum license may be applied to the government.

In order for various communication systems using unlicensed spectrum for wireless communication to coexist friendly on the spectrum, some countries or regions stipulate regulatory requirements that must be met using unlicensed spectrum. For example, the communication device follows the principle of "Listen Before Talk (LBT)", that is, Before the communication device performs signal transmission on a channel of an unlicensed spectrum, it needs to perform channel sensing first, and only when the channel sensing result is that the channel is idle, the communication device can perform signal transmission; 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 transmit signals.

In the unlicensed spectrum, the LBT scheme may be a channel access scheme of a Frame Based Equipment (FBE), where the Frame structure occurs periodically and includes a Channel Occupancy Time (COT) and an idle time in one Frame structure. The communication equipment monitors the channel in idle time, if the channel monitoring is successful, the COT in the next fixed frame period can be used for transmitting signals; if the channel monitoring fails, the COT in the next fixed frame period cannot be used for transmitting signals. How to receive the remaining System Information (SI) in the NR-U (NR-based access to unlicensed spectrum) System under the FBE channel access scheme is a problem that needs to be solved at present.

Content of application

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

According to an embodiment of the present application, a method for determining system information transmission resources is provided, where the method is applied to a terminal device, and includes: receiving first indication information sent by network equipment, wherein the first indication information is used for determining target downlink resources; and acquiring the target downlink resource according to the first indication information, wherein the terminal equipment receives the system information sent by the network equipment through the target downlink resource.

According to an embodiment of the present application, a method for indicating system information transmission resources is provided, where the method is applied to a network device, and includes: and sending first indication information to terminal equipment, wherein the first indication information is used for determining target downlink resources, and the terminal equipment receives system information sent by the network equipment through the target downlink resources.

According to an embodiment of the present application, a device for determining system information transmission resources is provided, configured in a terminal device, and includes at least: a receiving module, configured to receive first indication information sent by a network device, where the first indication information is used to determine a target downlink resource; and an obtaining module, configured to obtain the target downlink resource according to the first indication information, where the terminal device receives, through the target downlink resource, system information sent by the network device.

According to an embodiment of the present application, an apparatus for indicating system information transmission resources is provided, configured in a network device, and includes at least: the indication module is configured 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 system information sent by the network device through the target downlink resource.

According to an embodiment of the application, there is provided a terminal device comprising 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, the programs comprising instructions for performing operations in any of the methods applied to the terminal device in the embodiments of the application.

According to an embodiment of the present application, there is provided a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform some or all of the operations as described in the method for determining a system information transmission resource.

According to an embodiment of the present application, there is provided a computer program product, wherein the computer program product comprises a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the operations as described in any of the methods applied to a terminal device in the first aspect of the embodiments of the present application. The computer program product may be a software installation package.

According to one embodiment of the application, there is provided a network device comprising 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, the programs comprising instructions for performing the operations of any of the methods applied to the network device in the embodiments of the application.

According to an embodiment of the present application, there is provided a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform some or all of the operations as described in the method for indicating a system information transmission resource.

According to an embodiment of the present application, there is provided a computer program product, wherein the computer program product comprises a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the operations as described in the method for indicating system information transmission resources. The computer program product may be a software installation package.

It can be seen that, when the network device sends the system information to the terminal device, the network device configures, to the terminal device, the indication information capable of determining the target downlink resource for receiving the system information, so that, for network devices of different device types, the terminal device adopts a corresponding system information receiving manner, and thus, in an NR-U (NR-based access to downlink spread, NR-U) system, when the network device is an FBE, the terminal device can reduce the detection complexity of the system information on the target downlink resource.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the application will be apparent from the description and drawings, and from the claims.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a communication system disclosed in an embodiment of the present application.

Fig. 2 is a schematic diagram of a channel access method based on FBE according to an embodiment of the present disclosure.

Fig. 3 is a schematic diagram of an SSB candidate location within a DRS window according to an embodiment of the present application.

Fig. 4 is a schematic flowchart of a method for determining system information transmission resources according to an embodiment of the present application.

Fig. 5 is a schematic flowchart of a method for indicating system information transmission resources according to an embodiment of the present application.

Fig. 6 is a schematic diagram of an apparatus for determining system information transmission resources according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram of an interrupt device disclosed in an embodiment of the present application.

Fig. 8 is a schematic diagram of an apparatus for indicating system information transmission resources according to an embodiment of the present application.

Fig. 9 is a schematic diagram of another apparatus for indicating system information transmission resources according to an embodiment of the present application.

Fig. 10 is a schematic diagram of another apparatus for indicating system information transmission resources according to an embodiment of the present application.

Fig. 11 is a schematic diagram of another apparatus for indicating system information transmission resources according to an embodiment of the present application.

Fig. 12 is a schematic structural diagram of a network device disclosed in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communication (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, a LTE Frequency Division Duplex (FDD) System, a LTE Time Division Duplex (TDD) System, an LTE-Advanced Long Term Evolution (LTE-A) System, a New Radio (NR) System, an Evolution System of an NR System, a System of an unlicensed Radio (LTE-based Access to Universal Radio, LTE-U-communication (Universal Mobile telecommunications) System, a UMTS-Universal Mobile Telecommunications System (UMTS) System, WiMAX) communication system, Wireless Local Area Network (WLAN), Wireless Fidelity (WiFi), next generation communication system, or other communication system.

Generally, conventional Communication systems support a limited number of connections and are easy to implement, however, with the development of Communication technology, mobile Communication systems will support not only conventional Communication, but also, for example, Device-to-Device (D2D) Communication, Machine-to-Machine (M2M) Communication, Machine Type Communication (MTC), and Vehicle-to-Vehicle (V2V) Communication, and the embodiments of the present application can also be applied to these Communication systems.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. Optionally, the Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or may be a Network device in 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 Public Land Mobile Network (PLMN) for future evolution, or the like.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. As used herein, "terminal equipment" includes, but is not limited to, connections via wireline, such as Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connection; and/or another data connection/network; and/or via a Wireless interface, e.g., to 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 means of another terminal device arranged to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A terminal device arranged to communicate over 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 Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, 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 a radiotelephone transceiver. Terminal Equipment may refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having 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.

Optionally, a Device to Device (D2D) communication may be performed between the terminal devices 120.

Alternatively, the 5G system or the 5G network may also be referred to as a New Radio (NR) system or an NR network.

Fig. 1 is a schematic structural diagram of a communication system disclosed in an embodiment of the present application, which exemplarily shows one network device and two terminal devices, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within a coverage area of each network device, which is not limited in this application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above and are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The method of the embodiment of the application can be applied to communication of the unlicensed spectrum, and can also be applied to other communication scenes, such as a communication scene of the licensed spectrum.

Unlicensed spectrum is a nationally and regionally divided spectrum available for communication by radio devices, which may be considered a shared spectrum, i.e., a spectrum that may be used by communication devices in different communication systems as long as it meets the regulatory requirements set by the country or region on the spectrum, and may not be applied for a proprietary spectrum license from the government. In order to enable friendly coexistence of various communication systems using unlicensed spectrum for wireless communication on the spectrum, when a communication device communicates on the unlicensed spectrum, the principle of Listen Before Talk (LBT) may be followed, that is, Before the communication device performs signal transmission on a channel of the unlicensed spectrum, it needs to perform channel sensing (or called channel detection) first, and only when the channel sensing result is that the channel is idle, the communication device can perform signal transmission; if the communication device performs channel sensing on the unlicensed spectrum, as a result, the channel is busy, signal transmission is not possible. Optionally, the bandwidth of LBT is 20MHz, or an integer multiple of 20 MHz.

The LBT scheme includes two types from the network deployment perspective, one is a channel access scheme of a Load-based equipment (LBE), that is, a communication device may perform channel monitoring on an unlicensed spectrum after a service arrives, and start sending a signal after the channel monitoring is successful. The other is a channel access mode of a Frame Based Equipment (FBE). Fig. 2 is a schematic diagram of an FBE-based channel access method according to an embodiment of the present disclosure, as shown in fig. 2, in the FBE-based channel access method, a frame structure occurs periodically, a period length of the frame structure does not exceed a preset value, for example, 200ms, and a frame structure includes a COT (the length does not exceed 95% of a fixed frame period) and an idle time (the length is at least 5% of a channel occupation time, and a minimum value is 100us, and the frame structure is located at an end of the fixed frame period). The communication device performs Clear Channel Assessment (CCA), and the communication device performs channel monitoring on a channel in an Idle Period (Idle Period), and if the channel monitoring is successful, the channel occupation time in the next fixed frame Period can be used for transmitting signals; if the channel monitoring fails, the occupied time of the channel in the next fixed frame period cannot be used for transmitting signals. Alternatively, the channel resources that the communication device may use for traffic transmission are periodically present.

In the LBE-based NR-U system, an initial access procedure of a terminal device may be performed by detecting a Discovery Reference Signal (DRS). The DRS comprises a Synchronization Signal Block (PBCH Block, SSB or SS/PBCH Block), and is transmitted in a DRS window. The DRS window is periodically generated, there may be multiple candidate locations within the DRS window for transmitting SSBs, and the network device may perform multiple LBT attempts when transmitting SSBs within the DRS window, and may perform SSB transmission through at least one candidate location of the multiple candidate locations after LBT is successful. The Quasi-co-located (QCL) hypotheses (or QCL relationships) among the SSB candidate locations are determined by Q values, for example, SSBs transmitted on SSB candidate locations with the same index modulo Q value can be considered to have the same QCL hypothesis. The Q value may be preset or base station indicated. Alternatively, 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 also be indicated by the base station through a Physical Broadcast Channel (PBCH). Alternatively, the Q value may be one of 1, 2, 4, and 8. As an example, assuming that the Q value is 4, SSBs transmitted in candidate positions with the same value modulo Q, such as the 1 st SSB candidate position, the 5 th SSB candidate position, and the 9 th SSB candidate position, have the same QCL hypothesis.

For example, fig. 3 is a schematic diagram of an SSB candidate location within a DRS window according to an embodiment of the present application. As shown in example 1 in fig. 3, the set of SSB candidate locations in the DRS window includes 20 SSB candidate locations, Q takes the value of 4, and SSB candidate locations with the same QCL hypothesis are denoted by the same QCL reference numeral. Specifically, the terminal device may assume that SSBs transmitted on SSB candidate locations having the same QCL label have the same QCL relationship, or that the network device should use the same beam (beam) if the network device transmits SSBs on SSB candidate locations having the same QCL label.

The SSBs to be transmitted include at least one SSB in the set of SSBs. For example, the SSB set includes

SSBs

0, 1, 2, 3, the SSB candidate location with QCL number 0 for sending SSB0, the SSB candidate location with QCL number 1 for sending SSB1, the SSB candidate location with QCL number 2 for sending SSB2, and the SSB candidate location with QCL number 3 for sending SSB 3. The SSBs to be transmitted include at least one SSB in the set of SSBs. For example, assuming that the SSB to be transmitted includes SSB0, SSB2, and SSB3, the SSB candidate positions numbered 0, 2, and 3 in example 1 may all be used for SSB transmission.

And the base station can select candidate positions for obtaining the channel use right from the SSB candidate positions in the DRS window for SSB transmission in different DRS windows according to the LBT result. In the initial access process, if the terminal device detects an SSB, the terminal device may determine, according to the MIB in the PBCH, a Control-resource set (core set) of a Type0-PDCCH Common Search Space (CSS) set, and a PDCCH transmitted through resources in the Control resource set may be used to schedule a PDSCH carrying Remaining Minimum System Information (RMSI). Accordingly, the terminal device may receive corresponding RMSI information according to the SSB. Herein, the RMSI may also be considered as a System Information Block 1 (SIB 1).

In an LBE-based NR-U system, when there are multiple SSB candidate locations within the DRS window, one set of control resources for transmitting RMSI may be associated with each SSB candidate location. In this case, there may also be multiple candidate locations for the set of control resources used to transmit the RMSI. When receiving the RMSI, the terminal device may perform merge detection on the RMSI having the QCL relationship according to the Q value, for example.

In the FBE-based NR-U system, since the frame structure occurs periodically, if LBT succeeds, the channel occupation time in the next fixed frame period may be used for transmitting signals, or in other words, SSBs or DRSs in the fixed frame period may be transmitted. In this case, multiple SSB candidate locations may not be included in the DRS window. For example, whether the SSB can be transmitted at the SSB candidate location is determined according to whether the base station obtains the channel usage right in the fixed frame period of the SSB candidate location. Therefore, optionally, in this case, the Q value is not needed to determine the QCL hypothesis among the SSB candidate positions, or the base station is not needed 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 a maximum value or a minimum value in a value range preset by the Q value.

For example, as shown in example 2 in fig. 3, the set of SSB candidate locations in the DRS window includes 4 SSB candidate locations, and the value of Q is preset to 8, so that one SSB may be considered to include 1 candidate location in the DRS window. The terminal device may assume that the SSBs sent at these SSB candidate locations do not have the same QCL relationship, or, if the network device sends SSBs at different SSB candidate locations, the network device may use different beams.

Likewise, the SSBs to be transmitted include at least one SSB in the set of SSBs. For example, the SSB set includes

SSBs

0, 1, 2, 3, the SSB candidate location numbered 0 in example 2 is used to send SSB0, the SSB candidate location numbered 1 is used to send SSB1, the SSB candidate location numbered 2 is used to send SSB2, and the SSB candidate location numbered 3 is used to send SSB 3. Assuming that the SSB to be transmitted includes SSB0, SSB2, and SSB3, the SSB candidate locations labeled 0, 2, 3 in example 2 can be used for SSB transmission if the network device obtains channel usage rights for a fixed frame period.

In FBE-based NR-U systems, each SSB candidate location may also be associated with a set of control resources for transmitting RMSI. When a certain SSB to be sent in the DRS window has only one SSB candidate location, in this case, the control resource set for transmitting the RMSI corresponding to the SSB also has only one candidate location. When receiving the RMSI, the terminal device may perform the merge detection of the RMSI without using the Q value.

However, in the initial access phase, when detecting the SSB, the terminal device does not know whether the current system belongs to the LBE or the FBE channel access mode, and therefore, when receiving the RMSI, even for the NR-U system under the FBE, it still tries to detect the set of control resources of multiple RMSIs, for example, perform combined detection on the RMSIs with QCL relationship according to the Q value, thereby increasing the complexity of system detection. The application mainly considers the enhancement of the transmission and receiving modes of the system information under the FBE structure.

Based on the schematic diagram of the communication system shown in fig. 1, please refer to fig. 4, fig. 4 is a schematic flowchart of a method for determining system information transmission resources according to an embodiment of the present application, where the method includes some or all of the following:

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

in operation 404, a target downlink resource is obtained according to the first indication information, where the terminal device receives system information sent by the network device through the target downlink resource.

Optionally, the device types of the network device include: a frame structure based device FBE and a load based device LBE.

It should be understood that, in the embodiment of the present application, the device type of the network device is FBE, which may refer to: the network equipment is in an LBT mode based on a frame structure when carrying out LBT; the device type of the network device is LBE, which may refer to: the network device is in a load-based LBT mode when performing LBT.

Optionally, the first indication information is configured in a separate information field.

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

Optionally, the method comprises at least one of: 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.

Optionally, the first indication information is carried in the MIB and includes: the first indication information multiplexes a common subcarrier spacing subanticrasterspacincommon 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 sets on the same carrier is always the same, so this information field may not be used to indicate the subcarrier spacing. Accordingly, in an NR-U system, this information field may be multiplexed to indicate that the device type of the network device is FBE or LBE.

Optionally, the first indication information is carried in the PBCH, and includes: the first indication information is multiplexed in one or more bits of a designated position in the PBCH, wherein the designated position at least comprises:

optionally, the first indication information is a specific information state of the second indication information, and the specific information state is used to determine that the device type of the network device is the FBE.

Optionally, the method comprises at least one of: the second indication information is used for determining quasi co-located QCL hypothesis of the synchronization signal block SSB; or the second indication information is used for configuring 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 for scheduling transmission of the system information.

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.

In a specific embodiment, 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 table 1 below. The 2-bit state of the first information state is "11", or when the information state of Q is "11", it indicates that the device type of the current network device may be FBE.

TABLE 1

00	01	10	11
1	2	4	8

In a specific embodiment, 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 table 2 below. The 2-bit state of the first information state is "11", or when the information state of Q is "11", it indicates that the device type of the current network device is FBE.

TABLE 2

00	01	10	11
2	4	8	Reserved/FBE

In a specific embodiment, the second indication information is used for configuring 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, where M1 configurations of the N control resource set configurations apply to the LBE and M2 configurations of the N control resource sets apply to the FBE. The terminal device may determine whether the network device is an FBE or an LBE according to the received second indication information.

Optionally, the obtaining the target downlink resource according to the first indication information includes: when the device type of the network device is determined to be the FBE according to the first indication information, the target downlink resource is a first downlink resource corresponding to the 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 a second downlink resource corresponding to the LBE; wherein the first downlink resource and the second downlink resource are different.

Optionally, the first downlink resource is not determined according to the Q value. Optionally, after determining that the network device is an FBE according to the first indication information, the terminal device may perform, when receiving the RMSI, combination detection on the RMSI without according to the Q value, or the terminal device may assume that a certain SSB to be sent in the DRS window has only one SSB candidate location, and that a control resource set used for transmitting the RMSI corresponding to the SSB also has only one candidate location.

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

Based on the schematic diagram of the communication system shown in fig. 1, please refer to fig. 5, which is a schematic flowchart of an indication method for system information transmission resources according to an embodiment of the present application, where the method includes some or all of the following:

operation 502 is to send first indication information to the 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.

Optionally, the device types of the network device include: a frame structure based device FBE and a load based device LBE; the first indication information is configured in a separate information field.

Optionally, before sending the first indication information to the terminal device, the method further includes: the first indication information is configured for determining a device type of the network device.

Optionally, in a case that the device type of the network device is FBE, the sending the first indication information to the terminal device includes at least one of: carrying first indication information in a master information block MIB; carrying first indication information in a System Information Block (SIB); carrying first indication information in a physical broadcast channel PBCH; the first indication information is carried in a primary synchronization signal PSS or a secondary synchronization signal SSS.

Optionally, the loading the first indication information in the MIB includes: the first indication information is multiplexed in a common subcarrier spacing subanticrossspacincommon command field in the MIB. Carrying first indication information in a physical broadcast channel PBCH, wherein the first indication information comprises: multiplexing the first indication information in one or more bits of a designated position in the PBCH, wherein the designated position at least comprises:

optionally, before sending the first indication information to the terminal device, the method further includes: and configuring the first indication information into a specified information state of the second indication information, wherein the specified information state is used for indicating the device type of the network device.

Optionally, in a case that the device type of the network device is FBE, the method includes at least one of: the second indication information is used for indicating the terminal equipment to determine the quasi co-location QCL hypothesis of the synchronization signal block SSB; or the second indication information is used for indicating the terminal device to configure a Type 0-control resource set of the CSS set of the PDCCH common search space, and a PDCCH in the Type0-PDCCH CSS set is used for scheduling transmission of the system information.

In addition, in case that the network device is an FBE, the network device performs LBT according to a periodically occurring frame structure, wherein a channel occupancy time COT and an idle time are included in one frame structure. The network equipment performs LBT on the channel in idle time, and if the LBT is successful, the occupied time of the channel in the next fixed frame period can be used for transmitting signals; if the LBT fails, the channel occupancy time within the next fixed frame period cannot be used for transmitting signals. Accordingly, when uplink transmission of the terminal device occurs in a frame period, if the terminal device detects a downlink signal or channel, such as PDCCH, SSB, PBCH, RMSI, common PDCCH (GC-PDCCH), etc., in the frame period, the terminal device may perform uplink transmission in the frame period. In this case, the terminal device further needs to know at least one of information such as channel occupation time, idle time, frame period length, etc. of the frame period to determine that uplink transmission of the terminal device occurs in the frame period.

Therefore, the embodiment of the present application further provides a method for a terminal device to determine that uplink transmission occurs in a frame period. The method may include at least some of the following:

and the network equipment sends third indication information to the terminal equipment, wherein the third indication information is used for determining at least one of a frame period, channel occupation time and idle time. Correspondingly, the terminal device receives the third indication information sent by the network device, and determines whether uplink transmission occurs in the frame period according to the third indication information.

Optionally, the third indication information indicates at least one of a frame period, a channel occupation time, and an idle time. For example, the third indication information indicates a frame period, and the terminal device determines the channel occupation time and the idle time according to the third indication information and a preset rule, for example, that the idle time does not exceed 5% of the frame period and/or that the channel occupation time includes an integer number of slots or an integer number of symbols.

Optionally, the third indication information may be configured by Radio Resource Control (RRC) signaling and/or MAC CE.

Alternatively, the third indication information may be indicated by a PDCCH. Optionally, 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 the SFI-RNTI.

It should be understood that, for the terminal device in the idle state, it cannot receive the RRC signaling or the MAC CE, and cannot receive the first GC-PDCCH. In order to enable the terminal device in an idle state to receive the third indication information, the third indication information may be indicated in other manners.

Optionally, the third indication information may be indicated by MIB or PBCH or SIB.

Optionally, the third indication information may 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.

Optionally, the second GC-PDCCH corresponds to a first Radio Network Temporary Identifier (RNTI), where the first RNTI is indicated by the MIB, the PBCH, or the SIB, or the first RNTI is one of the following RNTIs: cell RNTI (Cell RNTI, C-RNTI), Temporary C-RNTI (TC-RNTI), Paging RNTI (P-RNTI), System Information RNTI (System Information RNTI, SI-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) and interrupt RNTI (INT-RNTI).

Optionally, the second GC-PDCCH may also be transmitted through the Type3-PDCCH CSS set.

In this embodiment, the terminal device in the connection state and the terminal state may obtain the third indication information, so that the terminal device may determine whether uplink transmission occurs in the frame period according to the third indication information.

The above-mentioned scheme of the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It is understood that the terminal device and the network device include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the functions. Those skilled in the art will readily appreciate that the various illustrative elements and algorithm operations described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the terminal device may be divided into the functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a form of hardware or a form of a software program module. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

In a device 600 for determining system information transmission resources disclosed in an embodiment of the present application, the device is configured in a terminal device, and fig. 6 is a schematic diagram of the device for determining system information transmission resources according to an embodiment of the present application, and as shown in fig. 6, the device at least includes:

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

an obtaining module 604, configured to obtain a target downlink resource according to the first indication information, where the terminal device receives system information sent by the network device through the target downlink resource.

Optionally, the device types of the network device include: the first indication information is configured in separate information fields based on the frame structure of the device FBE and based on the load of the device LBE.

Optionally, at least one of the following is included: 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.

Optionally, the first indication information is carried in the MIB and includes: a common subcarrier spacing subanticross spacing common command field in the first indication information multiplexing MIB; the first indication information is carried in PBCH, and comprises: the first indication information is multiplexed in one or more bits of a specified position in the PBCH, wherein the specified position at least comprises:

Optionally, the second indication information is used to instruct the terminal device to determine a quasi co-located QCL hypothesis of the synchronization signal block SSB; or the second indication information is used for indicating the terminal equipment to configure a Type 0-control resource set of the CSS set, and a physical downlink control channel PDCCH in the Type0-PDCCHCSS set is used for transmitting scheduling system information.

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

Fig. 7 is a schematic structural diagram of a terminal device disclosed in an embodiment of the present application. When the receiving module 602 is a communication interface, and the obtaining module 604 is a processor, the memory is used to store the information received by the receiving module 602, and when the system information determined by the obtaining module 604 is obtained, the terminal device according to the embodiment of the present application may be the network device shown in fig. 6.

In the case of using an integrated module, an indicating apparatus 800 for system information transmission resources disclosed in the embodiment of the present application is configured in a network device. Fig. 8 is a schematic diagram of an apparatus for indicating system information transmission resources according to an embodiment of the present application, as shown in fig. 8, at least including:

an indication module 802, configured 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 system information sent by a network device through the target downlink resource.

Fig. 9 is a schematic diagram of another apparatus for indicating system information transmission resources according to an embodiment of the present application, where as shown in fig. 9, the apparatus at least includes: a first configuring module 902, configured to configure the first indication information for determining a device type of the network device.

Fig. 10 is a schematic diagram of another apparatus for indicating system information transmission resources according to an embodiment of the present application, and as shown in fig. 10, the indicating module 802 includes at least one of the following:

a first indication unit 1002, configured to carry first indication information in a master information block MIB;

a second indication unit 1004, configured to carry the first indication information in a system information block SIB;

a third indication unit 1006, configured to carry the first indication information in the physical broadcast channel PBCH;

a fourth indication unit 1008, configured to carry the first indication information in the primary synchronization signal PSS or the secondary synchronization signal SSS.

Optionally, the first indicating unit 1002 is configured to multiplex the first indication information in a common subcarrier spacing subcarriersspacingcommon command field in the MIB; the third indicating unit 1006 is configured to multiplex the first indication information in one or more bits of a specified location of the PBCH, where the specified location at least includes:

fig. 11 is a schematic diagram of another apparatus for indicating system information transmission resources according to an embodiment of the present application, as shown in fig. 11, at least including: a second configuring module 1102, configured to configure the first indication information as a specified information state of the second indication information, where the specified information state is used to indicate a device type of the network device.

Optionally, in a case that the device type of the network device is FBE, the network device includes at least one of: the second indication information is used for indicating the terminal equipment to determine the quasi co-location QCL hypothesis of the synchronization signal block SSB; or the second indication information is used for indicating the terminal device to configure a Type 0-control resource set of the CSS set of the PDCCH common search space, and a PDCCH in the Type0-PDCCH CSS set is used for scheduling transmission of the system information.

Fig. 12 is a schematic structural diagram of a network device disclosed in an embodiment of the present application. As shown in fig. 12, includes a processor 1202, a communication interface 1204, and a memory 1206.

The indication module 802 in fig. 8-11 is used to control and manage actions of the terminal device, e.g., to support the terminal device to perform the operations 501 in fig. 5 and/or other processes for the techniques described herein. And also for supporting communication between the terminal device and other devices, for example, with network devices.

The first configuration module 902 in fig. 9 and the second configuration module 1102 in fig. 11 are configured to control and manage the actions of the terminal device.

The embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program enables a computer to perform part or all of the operations described in the terminal device in the above method embodiments.

Embodiments of the present application also provide a computer program product, where 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 above method embodiments for a terminal device. The computer program product may be a software installation package.

The operations of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by a processor executing software instructions. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may reside as discrete components in an access network device, a target network device, or a core network device.

Those skilled in the art will appreciate that in one or more of the examples described above, the functionality described in the embodiments of the present application may be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, may 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 loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the embodiments of the present application in further detail, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present application, and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of the embodiments of the present application.

Claims

A method for determining system information transmission resources is applied to terminal equipment and comprises the following steps:

receiving first indication information sent by network equipment, wherein the first indication information is used for determining target downlink resources; and

and acquiring the target downlink resource according to the first indication information, wherein the terminal equipment receives the system information sent by the network equipment through the target downlink resource.
The method of claim 1, wherein the device type of the network device comprises: a frame structure based device FBE and a load based device LBE, the first indication information being configured in separate information fields.
The method of claim 2, wherein the first indication information is used to determine that the device type of the network device is FBE.
A method according to any of claims 1-3, 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); and the number of the first and second groups,

the first indication information is carried in a primary synchronization signal PSS or a secondary synchronization signal SSS.
The method of claim 4, wherein the first indication information is carried in a MIB, and wherein the method comprises:

the first indication information multiplexes a common subcarrier spacing subCarrier spacing Common command field in the MIB;

the first indication information is carried in a PBCH, and includes:

the first indication information is multiplexed in one or more bits of a specified position in the PBCH, wherein the specified position at least comprises:
the method of claim 2, wherein the first indication information is a specific information state in the second indication information, and wherein the specific information state is used for determining that the device type of the network device is FBE.
The method of claim 6, wherein the method comprises at least one of:

the second indication information is used for determining quasi co-located QCL hypothesis of the synchronization signal block SSB; or the like, or, alternatively,

the second indication information is used for configuring 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 for scheduling transmission of the system information.
The method according to any one of claims 1 to 7, wherein the obtaining the target downlink resource according to the first indication information includes: when the device type of the network device is determined to be FBE according to the first indication information, the target downlink resource is a first downlink resource corresponding to FBE; or the like, or, alternatively,

when the type of the network equipment is determined to be LBE according to the first indication information, the target downlink resource is a second downlink resource corresponding to the LBE;

wherein the first downlink resource and the second downlink resource are different.
A method for indicating system information transmission resources is applied to network equipment and comprises the following steps:

and sending first indication information to terminal equipment, wherein the first indication information is used for determining target downlink resources, and the terminal equipment receives system information sent by the network equipment through the target downlink resources.
The method of claim 9, wherein the device type of the network device comprises: a frame structure based device FBE and a load based device LBE;

the first indication information is configured in a separate information field.
The method of claim 10, wherein before sending the first indication information to the terminal device, the method further comprises:

configuring the first indication information for determining a device type of the network device.
The method of claim 10, wherein before sending the first indication information to the terminal device, the method further comprises:

and configuring the first indication information as a specified information state of second indication information, wherein the specified information state is used for indicating the equipment type of the network equipment.
A device for determining system information transmission resources is configured in a terminal device and at least comprises:

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

and an obtaining module, configured to obtain the target downlink resource according to the first indication information, where the terminal device receives, through the target downlink resource, system information sent by the network device.
The apparatus of claim 13, wherein the device type of the network device comprises: a frame structure based device FBE and a load based device LBE, the first indication information being configured in separate information fields.
The apparatus of claim 14, wherein the first indication information is used to determine that the device type of the network device is FBE, or wherein the first indication information is a specific information status in the second indication information, and wherein the specific information status is used to determine that the device type of the network device is FBE.
An indication device of system information transmission resources, configured in a network device, at least comprising:

the indication module is configured 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 system information sent by the network device through the target downlink resource.
The apparatus of claim 16, wherein the device type of the network device comprises: a frame structure based device FBE and a load based device LBE;

the first indication information is configured in a separate information field.
The apparatus of claim 17, further comprising:

a first configuration module, configured to configure the first indication information for determining a device type of the network device.
The apparatus according to any of claims 16-18, wherein in case that the device type of the network device is FBE, the indication module comprises at least one of:

a first indication unit, configured 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, configured to carry the first indication information in a physical broadcast channel PBCH

A fourth indication unit, configured to carry the first indication information in a primary synchronization signal PSS or a secondary synchronization signal SSS.
The apparatus of claim 19, wherein the first indication unit is configured to multiplex the first indication information in a common subcarrier spacing subcarriersspacingcommon command field in the MIB;

the third indication unit is configured to multiplex the first indication information in one or more bits of a specified location in the PBCH, where the specified location at least includes:
the apparatus of claim 20, further comprising:

and the second configuration module is used for configuring the first indication information as the specified information state of the second indication information, and the specified information state is used for indicating the equipment type of the network equipment.
The apparatus of claim 21, wherein in a case that the device type of the network device is FBE, the apparatus comprises at least one of:

the second indication information is used for indicating the terminal device to determine a quasi co-located QCL hypothesis of a synchronization signal block SSB; or the like, or, alternatively,

the second indication information is used for indicating the terminal device 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 for scheduling transmission of the system information.
A terminal device comprising a processor, a memory, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the method of any of claims 1-8, 9-12.
A network device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-8, 9-12.
A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-8, 9-12.