Information indication method and apparatus, terminal, network side device, and medium

Abstract

The present application relates to the field of communications, and discloses an information indication method and apparatus, a terminal, a network side device, and a medium. The information indication method in embodiments of the present application comprises: a terminal receives first information sent by a network side device; and the terminal determines at least one piece of the following information on the basis of the first information: whether a synchronization signal block (SSB) is sent or valid or available at the first time; and whether a first resource occupied by the SSB overlaps with a second resource occupied by a first downlink transmission. By transmitting the first information, the terminal can ascertain the transmission status of the SSB, thereby facilitating improvement of the utilization rate of transmission resources in a communication system.

Description

Information indication method, device, terminal, network side equipment and medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 2024100129529 filed in China on January 2, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to an information indication method, apparatus, terminal, network-side equipment, and medium. Background Art

[0004] In the related art, there are several restrictions on the transmission of synchronization signal blocks or synchronization signal / physical broadcast channel signal blocks (SS / PBCH Block or SSB). For example, when the terminal receives system information block 1 (SIB1), it is assumed that the time and frequency domain resources of the network side transmitting SIB1 will not overlap with any symbol of the candidate position of any SSB; when the network sends other downlink data channels other than SIB1, if the physical downlink shared channel (PDSCH) resource allocation overlaps with the physical resource block (PRB) containing the SS / PBCH block transmission resources, the UE indicates the transmitted SSB according to the parameter ssb-PositionsInBurst in SIB1, assuming that the PRBs of all candidate SSB block transmission resources corresponding to the SSB block index provided by ssb-PositionsInBurst are not available for PDSCH transmission in the orthogonal frequency division multiplexing (OFDM) symbol. This shows that the utilization rate of downlink transmission resources in related technologies is low. Summary of the Invention

[0005] The embodiments of the present application provide an information indication method, apparatus, terminal, network-side equipment, and medium, which can solve the problem of low utilization of downlink transmission resources in related technologies.

[0006] In a first aspect, an information indication method is provided, the method comprising: a terminal receiving first information sent by a network-side device;

[0007] The terminal determines, based on the first information, at least one of the following information:

[0008] Whether the synchronization signal block SSB is sent, valid or available at the first time;

[0009] Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

[0010] In a second aspect, an information indication method is provided, the method comprising:

[0011] The network side device sends first information to the terminal;

[0012] The first information is used to determine at least one of the following information:

[0013] Whether the synchronization signal block SSB is sent, valid or available at the first time;

[0014] Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

[0015] In a third aspect, an information indicating device is provided, comprising:

[0016] A receiving module, configured to receive first information sent by a network-side device;

[0017] A determination module, configured to determine at least one of the following information based on the first information:

[0018] Whether the synchronization signal block SSB is sent, valid or available at the first time;

[0019] Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

[0020] In a fourth aspect, an information indicating device is provided, comprising:

[0021] A sending module, configured to send first information to a terminal;

[0022] The first information is used to determine at least one of the following information:

[0023] Whether the synchronization signal block SSB is sent, valid or available at the first time;

[0024] Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

[0025] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0026] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is configured to receive first information sent by a network-side device, and the processor is configured to determine at least one of the following information based on the first information:

[0027] Whether the synchronization signal block SSB is sent, valid or available at the first time;

[0028] Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

[0029] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0030] In an eighth aspect, a network-side device is provided, comprising a communication interface, wherein the communication interface is configured to send first information to a terminal;

[0031] The first information is used to determine at least one of the following information:

[0032] Whether the synchronization signal block SSB is sent, valid or available at the first time;

[0033] Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

[0034] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0035] In the tenth aspect, a wireless communication system is provided, comprising: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect, and the network side device can be used to execute the steps of the method described in the second aspect.

[0036] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0037] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium, and is executed by at least one processor to implement the steps of the information indication method as described in the first aspect, or the computer program / program product is executed by at least one processor to implement the steps of the information indication method as described in the second aspect.

[0038] In an embodiment of the present application, a terminal receives first information sent by a network-side device; the terminal determines at least one of the following information based on the first information: whether the synchronization signal block SSB is sent at the first time or whether it is valid or available; whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission. Through the transmission of the first information, the terminal can clearly understand the transmission status of the SSB, which can help improve the utilization rate of the transmission resources of the communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0040] FIG2 is a flow chart of an information indication method provided by an embodiment of the present application;

[0041] FIG3 is a schematic diagram of resource overlap provided by an embodiment of the present application;

[0042] FIG4 is a schematic diagram of a resource conversion provided by an embodiment of the present application;

[0043] FIG5 is a schematic diagram of resource utilization provided by an embodiment of the present application;

[0044] FIG6 is a schematic diagram of another resource utilization provided by an embodiment of the present application;

[0045] FIG7 is a schematic diagram of another resource utilization provided by an embodiment of the present application;

[0046] FIG8 is a schematic diagram of another resource utilization provided by an embodiment of the present application;

[0047] FIG9 is a schematic diagram of another resource utilization provided by an embodiment of the present application;

[0048] FIG10 is a schematic diagram of another resource utilization provided by an embodiment of the present application;

[0049] FIG11 is a schematic diagram of another resource utilization provided by an embodiment of the present application;

[0050] FIG12 is a flowchart of another information indication method provided in an embodiment of the present application;

[0051] FIG13 is a schematic diagram of an information indicating device provided in an embodiment of the present application;

[0052] FIG14 is a schematic diagram of another information indicating device provided in an embodiment of the present application;

[0053] FIG15 is a schematic diagram of a communication device provided in an embodiment of the present application;

[0054] FIG16 is a schematic diagram of a terminal provided in an embodiment of the present application;

[0055] FIG17 is a schematic diagram of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0057] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0058] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0059] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0060] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0061] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), application function ( Function, AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), Network Data Analytics Function (NWDAF), etc. It should be noted that in the embodiment of the present application, only the core network equipment in the NR system is taken as an example to introduce, and the specific type of the core network equipment is not limited.

[0062] For ease of understanding, some of the contents involved in the embodiments of this application are described below:

[0063] 5G SS / PBCH (SSB) transmission in unlicensed bands introduces multiple SSB candidate positions for different SSB indices (beams) because the SSB transmission time varies with the busy / idle state of the channel. Furthermore, to meet the occupied channel bandwidth (OCB) requirements, the network primarily relies on scheduling other downlink signals in non-SSB frequency resources around the SSB symbol. For terminals operating in unlicensed bands, since they do not know when the network will occupy the channel for SSB transmission, the current protocol has the following two limitations:

[0064] 1) The number of SSBs (candidate SSBs) that the network device may send is notified to the terminal by the system information SIB1. Therefore, when the terminal receives SIB1, it assumes that the time domain and frequency domain resources used by the network to transmit SIB1 will not overlap with any candidate SSB position by at least one symbol.

[0065] 2) In addition to SIB1, when the network side device sends other downlink data channels, if the physical downlink shared channel PDSCH resource allocation overlaps with the PRB containing the SS / PBCH block transmission resources, the terminal (User Equipment, UE) indicates the SSB for transmission according to the parameter ssb-PositionsInBurst in SIB1, assuming that the PRBs of all candidate SSB block transmission resources corresponding to the SSB block index provided by ssb-PositionsInBurst are not available for PDSCH transmission in the OFDM symbol.

[0066] In other words, when receiving a PDSCH scheduled with a System Information-Radio Network Temporary Indentifier (SI-RNTI) in the common search space of the Physical Downlink Control Channel (PDCCH-Type0) of type 0 and the system information indicator in the downlink control information (DCI) is set to 0, the UE should assume that no SSB is sent to the resource element (RE) used by the UE for PDSCH reception. This assumption limits the possibility of multiplexing between SSBs and PDSCH carrying SIB1. The current protocol requires that the reception of PDSCH needs to take into account all candidate SSB resources / positions indexed by the existing SSB indicated by the semi-static signaling ssb-PositionsInBurst, even if the network does not send SSBs in all candidate SSB resources / positions.

[0067] The above restrictions actually limit the resource scheduling of network-side devices and reduce resource utilization. Even if the network-side device does not transmit SSBs on certain candidate SSB transmission resources, the network-side device must avoid scheduling SIB1 and any other SSB candidate resources to have frequency domain overlap. When the terminal receives downlink PDSCHs other than SIB1, if the frequency domain resources transmitted by other downlink PDSCHs overlap with the PRBs of the SSB candidate resources, the terminal must rate match the received PDSCHs on all candidate SSB transmission resources. This shows that the utilization of downlink transmission resources in related technologies is low.

[0068] The embodiments of the present application provide an information indication method, apparatus, terminal, network-side equipment, and medium to improve resource utilization.

[0069] The following, in conjunction with the accompanying drawings, describes in detail the information indication method, apparatus, terminal, network-side equipment, and medium provided in the embodiments of the present application through some embodiments and their application scenarios.

[0070] Referring to FIG. 2 , FIG. 2 is a flowchart of an information indication method provided by an embodiment of the present application, which is used in a terminal. As shown in FIG. 2 , the method includes the following steps:

[0071] Step 201: The terminal receives first information sent by a network-side device.

[0072] Optionally, the first information is carried in at least one of semi-static signaling and dynamic signaling.

[0073] In an embodiment of the present application, the signaling for sending the above-mentioned first information may be at least one of semi-static signaling or dynamic signaling, wherein the semi-static signaling includes at least one of broadcast information, system information, and radio resource control (RRC) signaling; the dynamic signaling includes layer 1 (L1) signaling, such as terminal-specific (UE-specific) physical downlink control channel (PDCCH), group common PDCCH (Group common PDCCH), media access control control element (MAC CE), and media access control protocol data unit (MAC PDU).

[0074] Optionally, when the first information is carried in semi-static signaling and dynamic signaling, the dynamic signaling is used to rewrite, update or supplement the semi-static signaling.

[0075] In an embodiment of the present application, dynamic signaling can rewrite, update, or supplement the indication information in the semi-static signaling. Rewriting can be changing the semi-static signaling configuration, for example, the semi-static signaling configuration is a and b, and the dynamic signaling is rewritten to c and d, and finally c and d are actually transmitted; updating can be modifying the semi-static signaling configuration, for example, the semi-static signaling configuration may transmit a and b, and the dynamic signaling updates the actual transmission b, and finally b is actually transmitted; the above rewriting can also be understood as a form of updating, or updating can also be understood as a form of rewriting. Supplementing is to add configuration on the basis of the semi-static signaling configuration, for example, the semi-static signaling configuration is a and b, and the dynamic signaling supplements c and d, and finally a, b, c, and d are actually transmitted.

[0076] For example, the cell supports sending 8 SSBs, numbered SSB#0 to SSB#7;

[0077] The supplement may be: semi-static signaling indicates that the cell has / sends 4 of the 8 SSBs, namely SSB#0, SSB#1, SSB#2, and SSB#3; then the dynamic signaling may further indicate that SSB#4, SSB#5, SSB#6, and SSB#7 are sent, and finally the cell has / sends these 8 SSBs;

[0078] The update may be: semi-static signaling indicates that the cell may have / send these 8 SSBs, and dynamic signaling may further indicate which of the 8 SSBs will exist / send or which SSB(s) will not exist / send;

[0079] The rewrite can be: semi-static signaling indicates that the cell has / sends 4 of the 8 SSBs, namely SSB#0, SSB#1, SSB#2, and SSB#3; dynamic signaling can indicate that the cell has / sends SSB#1, SSB#4, SSB#5, SSB#6, and SSB#7, and finally the cell has / sends SSB#1, SSB#4, SSB#5, SSB#6, and SSB#7.

[0080] Optionally, the dynamic signaling includes a first dynamic signaling and a second dynamic signaling, and the second dynamic signaling is used to rewrite, update or supplement the first dynamic signaling; wherein, the second dynamic signaling is a dynamic signaling received later than the first dynamic signaling.

[0081] In the embodiments of the present application, later dynamic signaling can rewrite, update, or supplement earlier dynamic signaling. For explanations of rewriting, updating, or supplementing, reference can be made to the rewriting, updating, or supplementing operations of dynamic signaling on semi-static signaling. The change logic of the two is similar and will not be repeated here. The terminal determines the transmission mode or resource utilization mode of the SSB based on the rewritten, updated, or supplemented signaling, which will be described in subsequent embodiments.

[0082] In the embodiment of the present application, the relationship between multiple first information formats / contents is: for example, dynamic signaling can rewrite semi-static signaling; subsequent first information can rewrite the content of previous first information.

[0083] Optionally, the control information carrying the first information includes at least one of the following:

[0084] Non-fallback downlink control information DCI;

[0085] Rollback DCI;

[0086] scheduling a DCI for a first downlink transmission;

[0087] DCI not scheduled for the first downlink transmission.

[0088] In the embodiment of the present application, the first information may be carried by downlink control information DCI (also referred to as downlink control signaling), and the DCI mainly includes scheduling information of uplink and downlink data channels and control information of one or a group of UEs.

[0089] Among them, non-fallback downlink control information non-fallback DCI only schedules the UE-specific first downlink transmission (such as PDSCH);

[0090] Fallback DCI can schedule UE-specific first downlink transmission (such as PDSCH), or can schedule a group of UEs, or can schedule cell system information (such as SIB1 or other SIBs, paging information, and transmission during random access);

[0091] The DCI not scheduling the first downlink data, for example, the group common DCI.

[0092] The above-mentioned different DCIs can be understood as DCIs with different formats. The difference between fallback DCI (for example, DCI 0_0 and DCI 1_0 formats) and non-fallback DCI (for example, DCI 0_1 and DCI 1_1 formats) is that fallback DCI supports basic New Radio (NR) features for better robustness of PDCCH reception, while non-fallback DCI is compatible with more NR features for flexibility.

[0093] In an embodiment of the present application, optionally, based on the first information format and content, the first information is used to indicate which SSBs the terminal needs to consider when receiving a downlink transmission PDSCH, which can be applied in 5G, 6G or other future communication systems.

[0094] Optionally, the control information carrying the first information includes fallback DCI, and the first downlink transmission includes transmission of system information block SIB1.

[0095] In an embodiment of the present application, the PDSCH may include SIB1, and the first information may be carried in the fallback DCI. By receiving the first information, the terminal may support multiplexing of the SIB1 PDSCH and SSB in at least one of frequency division multiplexing (FDM) and time division multiplexing (TDM).

[0096] Optionally, the control information carrying the first information includes a target indication field, the target indication field includes L bits, and L is less than or equal to the number of SSB indexes supported by a cell.

[0097] In an embodiment of the present application, the above-mentioned first information can introduce an information indication field (target indication field) in the above-mentioned DCI (format), and the above-mentioned terminal determines at least one of whether the SSB is sent or valid or available at the first time and whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission based on the information carried in the information indication field.

[0098] Optionally, the target indication field may be in the form of a bitmap. L-1 , ..., b1, b0), using L bits, L is less than or equal to the number of SSB indices supported by a cell.

[0099] Optionally, when L is equal to the number of SSB indexes supported by a cell, one bit of the target indication field is used to indicate whether an SSB index is sent, valid, or available;

[0100] Or, when L is less than the number of SSB indexes supported by a cell, one bit of the target indication field is used to indicate whether an SSB index group is sent, valid, or available;

[0101] Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether the time slot where the first information is located sends an SSB, whether the SSB is valid, or whether the SSB is available;

[0102] Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether SSB is sent or whether SSB is valid or available in M ​​time slots after the time slot where the first information is located, where M is a positive integer greater than or equal to 1;

[0103] Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether SSB is sent in the N time slots before the time slot where the first information is located, whether SSB is valid, or whether SSB is available, where N is a positive integer greater than or equal to 1.

[0104] For example, when a cell supports 8 beam SSBs (SSB#0 to SSB#7) or 8 SSB indices:

[0105] Mode 1: When L is equal to the number of SSB indices supported by a cell, L = 8 bits, each bit corresponds to an SSB index, for example, (b7, b6, ..., b1, b0) corresponds to (SSB#7, SSB#6, ..., SSB#1, SSB#0), a bit value of 0 indicates that the SSB of the corresponding SSB index is invalid or unavailable or not sent, and a bit value of 1 indicates that the SSB of the corresponding SSB index is valid or available or sent;

[0106] Method 2: When L is less than the number of SSB indices supported by a cell, for example, L = 2(b1, b0), as shown in Table 1, the 8 SSBs can be divided into 2 groups of 4 SSBs each, and each bit corresponds to an indication of whether a group of SSBs exists / is sent;

[0107] Table 1

[0108] Method 3: When L is less than the number of SSB indices supported by a cell, the 8 SSBs are divided into 2 groups. The number of SSBs in each group is not limited, as shown in Table 2. Each codepoint corresponds to a group of SSBs that are valid or available or sent, or invalid or unavailable or not sent.

[0109] Table 2

[0110] Mode 4: When L is less than the number of SSB indices supported by a cell, it indicates whether the SSB in the current time unit or the M time units after the current time unit, or the N time units before the time unit is transmitted, valid, or exists. When a time unit (e.g., a time slot) carries a maximum of two SSB indices, it indicates whether the two SSBs in the corresponding time unit are transmitted, exist, or valid.

[0111] For example, b1 indicates whether the second SSB in the indicated slot exists, and b0 indicates whether the first SSB in the indicated slot exists. Alternatively, if L = 1 bit, b0 = 0 indicates that all SSBs in the indicated slot do not exist; b0 = 1 indicates that all SSBs in the indicated slot exist.

[0112] Optionally, the DCI of the non-scheduled first downlink transmission is used to indicate whether an SSB is sent in one or more time units, or whether the SSB is valid, or whether the SSB is available;

[0113] The non-fallback DCI or fallback DCI or DCI scheduling the first downlink transmission is used to indicate whether the time unit of the first downlink transmission scheduled by the non-fallback DCI or fallback DCI or DCI scheduling the first downlink transmission sends SSB or whether the SSB is valid or whether the SSB is available.

[0114] In an embodiment of the present application, different DCI formats carrying the first information may have different contents and structures of the first information indication fields. Optionally, the DCI format carrying the first information is a non-scheduled first downlink data, such as a group common DCI that can indicate whether SSB exists in one or more slots; the DCI format carrying the first information is a fallback DCI or non-fallback DCI for scheduled downlink data or a DCI format for scheduled first downlink transmission, which indicates whether SSB exists in the time slot where the scheduled downlink data is located, wherein the time unit (e.g., time slot) where the scheduled downlink data indicated by the DCI is located may be the same as or different from the time unit (e.g., time slot) where the DCI is located.

[0115] Step 202: The terminal determines at least one of the following information based on the first information:

[0116] Whether the synchronization signal block SSB is sent, valid or available at the first time;

[0117] Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

[0118] In an embodiment of the present application, the SSB is not limited to the definition of the traditional SSB, but can also be any module that includes at least one of a synchronization signal, a broadcast signal, a broadcast channel (PBCH), and other system message downlink broadcast channels.

[0119] Optionally, the SSB includes at least one of:

[0120] Cell-defined SSB, non-cell-defined SSB, low-power synchronization signal LP-SS, low-power wake-up signal LP-WUS, control signaling of scheduling system information block SIB1, and control resource set associated with the control signaling of scheduling system information block SIB1 indicated by SSB.

[0121] In an embodiment of the present application, the above-mentioned SSB is not limited to the cell-defined SSB (Cell-defining SSB, CD-SSB), but may also include non-cell-defined SSB (Non-Cell-defining SSB, NCD-SSB), and may also include a low power synchronization signal (low power sync.signal, LP-SS), a low power wake up signal (low power wake up signal, LP-WUS), and may also include the control signaling Type 0PDCCH for scheduling SIB1 or the control resource set CORESET#0 associated with the control signaling.

[0122] Among them, CD-SSB refers to the SSB associated with the remaining minimum system information (RMSI), and NCD-SSB is the SSB not associated with RMSI.

[0123] In an embodiment of the present application, the terminal determines the transmission form of the synchronization signal block SSB by receiving the first information sent by the network side device, specifically whether the SSB is transmitted or which SSBs are transmitted, and the transmission relationship between the transmitted SSB and other downlink transmissions.

[0124] The first information sent by the above-mentioned network side device can directly indicate whether the SSB is sent or valid or available at the first time, and whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission. The specific content of the first information can allow the terminal to indirectly determine whether the synchronization signal block SSB is sent or valid or available at the first time, and whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission; for example, the first information is used to indicate the transmission position of the SSB, so that the terminal can know whether it is sent or valid or available at the first time, or the first information respectively indicates the first resource occupied by the SSB and the second resource occupied by the first downlink transmission, so that the terminal can know whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission.

[0125] In an embodiment of the present application, the first information may indicate or enable the terminal to infer at which SSB candidate resources / locations the network side device sent the SSB.

[0126] In the embodiment of the present application, it can be understood as a design method for the coexistence of a synchronization channel broadcast channel and other signals.

[0127] In the embodiment of the present application, the above-mentioned first time can be a time unit indicated in the first information, or it can be a time unit determined according to the reception time of the first information.

[0128] Optionally, the first time includes any one of the following:

[0129] a time unit in which the terminal receives the first information;

[0130] The Mth time unit after the time unit in which the terminal receives the first information, where M is a positive integer greater than or equal to 1;

[0131] The Nth time unit before the time unit in which the terminal receives the first information, where N is a positive integer greater than or equal to 1;

[0132] An SSB sending period in which the terminal receives the first information;

[0133] The Xth SSB transmission period after the SSB transmission period in which the terminal receives the first information, where X is a positive integer greater than or equal to 1;

[0134] The terminal receives the Yth SSB transmission period before the SSB transmission period in which the first information is located, where Y is a positive integer greater than or equal to 1.

[0135] In the embodiment of the present application, the time unit may be a time slot, a specific time unit configured by the network or specified by the protocol, etc. The first time may include at least one of the following:

[0136] The current time unit in which the terminal receives the first information;

[0137] The time unit n+M (M>=1) after the time unit n in which the terminal receives the first information;

[0138] The time unit nN (N>=1) before the time unit n at which the terminal receives the first information;

[0139] The SSB sending time in the current SSB cycle of the first information;

[0140] The SSB transmission time in the Xth (X>=1)th SSB cycle after the current SSB cycle;

[0141] The SSB transmission time in the Yth (Y>=1) SSB cycle before the current SSB cycle;

[0142] Among them, the SSB sending cycle and the SSB sending time in the SSB cycle are configured by the upper layer.

[0143] In an embodiment of the present application, regarding whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission, the above-mentioned first downlink transmission can be understood as other downlink transmissions other than the SSB, such as PDSCH. Among them, whether it overlaps can also be understood as the multiplexing method of the SSB and the first downlink transmission. The above-mentioned resources can be understood as at least one of the time domain, frequency domain, and spatial domain (for example, beam) resources. The overlap of the above-mentioned resources can be understood as at least partial overlap of resources.

[0144] Optionally, the physical resources of the SSB transmission and the physical resources of the first downlink transmission overlap, including at least one of the following:

[0145] The time resource of the SSB transmission overlaps with the time resource of the first downlink transmission;

[0146] The frequency domain resources of the SSB transmission overlap with the frequency domain resources of the first downlink transmission;

[0147] The spatial resources of the SSB transmission overlap with the spatial resources of the first downlink transmission.

[0148] Optionally, the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission, including at least one of the following situations:

[0149] The physical resources of the SSB transmission overlap with the physical resources of the first downlink transmission;

[0150] The time interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to the switching time;

[0151] The frequency domain interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to the guard frequency domain interval;

[0152] Alternatively, the first resource occupied by the SSB does not overlap with the second resource occupied by the first downlink transmission, including at least one of the following situations:

[0153] The physical resources of the SSB transmission and the physical resources of the first downlink transmission do not overlap;

[0154] The time interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to the switching time;

[0155] The frequency domain interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to the protection frequency domain interval.

[0156] In the embodiment of the present application, the overlap of the above-mentioned resources may not only consider the overlap of the actual transmitted physical resources, but also consider the interval between the reception of the first downlink transmission and the reception of the SSB in the time domain or frequency domain. That is, the above-mentioned overlapping resources include the overlap of the actual transmitted physical resources, and may also include at least one of the following: the time interval between the reception of the first downlink transmission and the reception of the SSB is less than or equal to the switching time, or the frequency domain interval between the reception of the first downlink transmission and the reception of the SSB is less than or equal to the protection frequency domain interval. The non-overlapping situation is the opposite of the overlapping situation.

[0157] Regarding the situation where the time interval between the terminal receiving the SSB and receiving the first downlink transmission is equal to the conversion time, or the frequency domain interval between the terminal receiving the SSB and receiving the first downlink transmission is equal to the protection frequency domain interval, whether it is an overlapping situation can be determined according to the protocol agreement, preset rules or relevant configuration information.

[0158] Exemplarily, FIG3 illustrates two different overlapping situations (with actual physical resource overlap and without actual physical resource overlap).

[0159] Regarding the situation of considering the interval between receiving the first downlink transmission and receiving the SSB in the time domain or frequency domain, from another perspective, it can also be understood that the resources include the transition time or the protection frequency domain interval between the first downlink transmission and receiving the SSB, and the above-mentioned transition time or protection frequency domain interval needs to be considered during the resource overlapping process.

[0160] It can be understood that, in the above-mentioned situation where the time interval is less than or equal to the conversion time or less than or equal to the protection frequency domain interval, the physical resources actually transmitted may or may not overlap.

[0161] The values ​​of the above transition time and guard frequency interval are affected by at least one of the following factors:

[0162] Because the subcarrier spacing (SCS) or numerology used in SSB and the first downlink transmission is different;

[0163] The waveforms used for SSB and first downlink transmissions are different;

[0164] The receivers and receiving antennas used for receiving SSB and the first downlink transmission are different, or the number of antennas is different.

[0165] Optionally, determining, by the terminal based on the first information, whether first resources occupied by the SSB overlap with second resources occupied by the first downlink transmission includes:

[0166] When a first subcarrier spacing SCS used by the SSB and a second SCS used by the first downlink transmission are different, the terminal converts the first resource according to the second SCS based on the first information to obtain a third resource occupied by the SSB under the second SCS;

[0167] The terminal determines whether the third resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission;

[0168] The third resource is a positive integer number of orthogonal frequency division multiplexing OFDM symbols in the time domain, and the third resource is a positive integer number of resource blocks RB or a positive integer number of resource elements RE or a positive integer number of subcarriers in the frequency domain.

[0169] In an embodiment of the present application, when the subcarrier spacing SCS used by the SSB and the first downlink transmission is different, the resources occupied by the above-mentioned SSB need to be converted according to the SCS (second SCS) used by the first downlink transmission, so that the time domain and frequency domain resources occupied by the SSB after conversion based on the SCS are a positive integer number of time domain and frequency domain units of the first downlink transmission: a positive integer number of OFDM symbols in the time domain; a positive integer number of resource blocks RB or a positive integer number of resource elements RE or a positive integer number of subcarriers in the frequency domain. When the converted time domain and frequency domain unit is not an integer, it needs to be rounded up.

[0170] For example, as shown in FIG4 , assuming that SSB SCS = 30 KHz and the first downlink transmission PDSCH SCS = 15 KHz, the time domain and frequency domain resources occupied by the SSB need to be converted according to the SCS (15 KHz) of the first downlink transmission PDSCH and the start symbol and end symbol of the PDSCH transmission, so that the SSB occupies a positive integer number of time domain or frequency domain resource units of the PDSCH; that is, as shown in FIG4 , the start symbol and end symbol of the SSB v0 occupy half of the OFDM symbol of the PDSCH, and the other half of the OFDM symbol that constitutes an OFDM symbol with this half of the OFDM symbol is also regarded as the resource occupied by SSB v0 (the third resource). In the case that there is resource overlap between this other half of the OFDM symbol and the first downlink transmission, the above-mentioned other half of the OFDM symbol (the white rectangles on both sides of SSB v0 in FIG4 ) is not used to transmit the above-mentioned first downlink transmission or to receive the above-mentioned first downlink transmission through rate matching or to receive the above-mentioned first downlink transmission through punching.

[0171] Optionally, when the terminal determines, based on the first information, that resources occupied by the SSB overlap with resources occupied by the first downlink transmission, the method further includes at least one of the following:

[0172] The terminal does not use overlapping resources for the first downlink transmission;

[0173] The terminal receives the first downlink transmission by rate matching overlapping resources;

[0174] The terminal receives the first downlink transmission by puncturing overlapping resources;

[0175] The terminal does not use the frequency domain resources corresponding to the time domain resources in the overlapping resources for the first downlink transmission;

[0176] The terminal receives the first downlink transmission by rate matching all frequency domain resources where the time domain resources in the overlapping resources are located;

[0177] The terminal receives the first downlink transmission by puncturing all frequency domain resources where the time domain resources in the overlapping resources are located.

[0178] In the embodiment of the present application, when the terminal determines that the resources occupied by the first downlink transmission and the resources occupied by the SSB have overlapping resources, the terminal's behavior may be at least one of the following:

[0179] The terminal considers that the overlapping resources are not used for the first downlink transmission;

[0180] The terminal receives the first downlink transmission by rate matching the overlapping resources;

[0181] The terminal receives the first downlink transmission by puncturing the overlapping resources;

[0182] The terminal considers that all frequency domain resources where the time domain resources in the overlapping resources are located are not used for the first downlink transmission, or the terminal receives the first downlink transmission by rate matching or puncturing all frequency domain resources where the overlapping time domain resources are located.

[0183] In an embodiment of the present application, the frequency domain resources corresponding to the time domain resources in the overlapping resources can be understood as including other frequency domain resources corresponding to the overlapping time domain resources in addition to the actual overlapping frequency domain resources. For example, as shown in Figure 5, the actual overlapping frequency domain resources can be the location of SSB v0, and the frequency domain resources corresponding to the time domain resources in the overlapping resources can be all frequency domain resources whose time domain resource symbol index of the overlapping resources is 2-5.

[0184] Optionally, the first downlink transmission is PDSCH, and the PDSCH includes SIB1, other SIB information, paging information Paging PDSCH, msg.2, msg.B, msg.4 in the random access process, user-specific data PDSCH, broadcast PDSCH (MBS broadcast PDSCH), and multicast PDSCH (MBS Multicast PDSCH).

[0185] When the first information can be indicated using semi-static and dynamic signaling, for user-specific data, the semi-statically configured (Semi-Persistent Scheduling, SPS) PDSCH, i.e., SPS PDSCH, can be transmitted in the following manner:

[0186] Mode 1: The first SPS PDSCH dynamically scheduled by DCI will be rate matched (RM) or punctured according to the first information indicated by DCI, and the other SPS PDSCHs will still be rate matched or punctured according to the first information indicated by semi-static signaling;

[0187] Mode 2: All SPS PDSCHs are rate matched or punctured according to the first information indicated by the DCI;

[0188] Mode 3: All SPS PDSCHs are rate matched or punctured according to the first information indicated by the semi-static signaling.

[0189] For ease of understanding, the terminal determines the use of overlapping resources based on the first information, and the second dynamic signaling is used to rewrite, update, or supplement the first dynamic signaling, etc., and the optional embodiment is exemplarily described below (taking the first downlink transmission as PDSCH as an example):

[0190] Example 1. As shown in Figure 6, the downlink control signaling carries the first information, indicating the SSB transmission status of the resource where the PDSCH scheduled by the downlink control signaling is located. For example, the DCI in slot#0 schedules SSB v0 to be sent in slot#0 or no SSB v1 (dashed box in the figure) is sent, that is, only rate matching SSB v0 is required to receive PDSCH, and no rate matching SSB v1 is required; the DCI in slot#1 schedules SSB v2 and SSB v3 to be sent in slot#1, that is, rate matching SSB v2 and SSB v3 are required to receive PDSCH; in other words, SSB v0, SSB v2 and SSB v3 are not used for PDSCH transmission, and SSB v1 is used for PDSCH transmission.

[0191] Example 2: As shown in Figure 7, the downlink control signaling carries the first information, indicating the SSB transmission status in the resource where the PDSCH scheduled by the downlink control signaling is located. For example, if SSB v0 and SSB v1 are sent in slot #0 of the DCI scheduling slot #0, rate matching or puncturing of SSB v0 and SSB v1 is required to receive the PDSCH, or SSB v0 and SSB v1 are not used for PDSCH transmission. It should be noted that SSBv1 is instructed to be sent, but the actual network side device does not send it (the dotted box filled with cross lines), and rate matching of SSBv1 is required.

[0192] Example 3, as shown in Figure 8, the downlink control signaling carries first information, indicating the downlink control instruction, the time unit in which the terminal receives the first information, and the SSB transmission status of the resource in the first time unit after the time unit in which the terminal receives the first information. For example, the downlink control signaling carries the first information, indicating that SSB v0 and SSB v2 are transmitted in slot #0 and Slot #1, or there is no SSB v1 and SSB v3 transmission. When the terminal receives PDSCH in slot #1, it only needs to rate match SSBv2. Among them, the PDSCH in slot #1 can be:

[0193] The downlink control signaling carrying the first information in slot#0 is scheduled across PDSCH slots; or

[0194] The second repetition of the repeated transmission of the PDSCH scheduled by the downlink control signaling carrying the first information in slot #0 (the first repetition of the PDSCH is transmitted in slot #0); or

[0195] Slot#1 is the SPS PDSCH, which is the downlink transmission configured by RRC.

[0196] Example 4 and Figure 9 illustrate a scheme in which the second dynamic signaling (DCI in slot#1) is used to rewrite or update the first dynamic signaling (DCI in slot#0). The DCI in slot#0 indicates that SSB v0 and SSB v2 are sent in slot#0 and Slot#1, or that SSB v1 and SSB v3 are not sent. The DCI in slot#1 indicates that SSB v0, SSB v2, and SSB v3 are sent in slot#0 and Slot#1, or that SSB v1 is not sent. That is, the indication of whether SSB v3 is sent is rewritten (updated) in the DCI in slot#1. When the terminal receives PDSCH in slot#1, it needs to rate match SSBv2 and SSBv3. The definition of update (rewrite) includes at least one of the following:

[0197] The first signaling in slot n indicates that a certain SSB in the subsequent slot n+k is not sent. The first signaling in slot n+j indicates that the SSB in the subsequent slot n+k is sent. Both k and j are greater than 0, and k>=j

[0198] The first information previously indicated in slot n that a certain SSB in the subsequent slot n+k was sent, and the subsequent first signaling indicated in slot n+j that the SSB in the subsequent slot n+k was not sent, k and j are both greater than 0, and k>=j.

[0199] Example 5 and Figure 10 illustrate an example of not allowing a subsequent (later first information) to update an earlier (earlier first information) indication or not being able to indicate conflicting content. When a conflict occurs, the terminal may consider that the network-side device behavior is erroneous. The definition of conflicting content includes at least one of the following:

[0200] The first information previously indicated that a certain SSB was sent, but the subsequent first signaling indicated that the SSB was not sent;

[0201] The first information previously indicated that a certain SSB was not sent, and the subsequent first signaling indicated that the SSB was sent;

[0202] The first signaling in slot n indicates that a certain SSB in slot n+k is not sent. The first signaling in slot n+j indicates that the SSB in slot n+k is sent. Both k and j are greater than 0, and k<=j.

[0203] Previously, the first information in slot n indicated that a certain SSB in the subsequent slot n+k was sent, and the subsequent first signaling in slot n+j indicated that the SSB in slot n+k was not sent, k and j are both greater than 0, and k<=j.

[0204] It can be understood that the above examples are only used to illustrate the examples of this application and are not used to limit the feasible indication or transmission methods of this application.

[0205] Optionally, when the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB, the terminal performs at least one of the following:

[0206] The terminal abandons receiving the first downlink transmission;

[0207] The terminal skips receiving the first downlink transmission;

[0208] The terminal does not need to receive the first downlink transmission;

[0209] The terminal confirms a network scheduling error;

[0210] The terminal demodulates the first downlink transmission using a demodulation reference signal that does not overlap with the first resource.

[0211] In the embodiment of the present application, when the terminal determines that resources occupied by the reference signal used to demodulate the first downlink transmission overlap with resources occupied by the SSB, the terminal performs at least one of the following actions:

[0212] The terminal abandons receiving the first downlink transmission or the terminal may skip receiving the first downlink transmission or the terminal is not required to receive the first downlink transmission;

[0213] The terminal considers the scheduling to be a network error, and the terminal's behavior is not defined or depends on the terminal's implementation;

[0214] The terminal uses a reference signal that does not overlap with the SSB resources to demodulate the first downlink transmission, that is, uses the part of the demodulation reference signal of the first downlink transmission that does not overlap with the SSB resources to demodulate the first downlink transmission.

[0215] Optionally, the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB, including at least one of the following situations:

[0216] The physical resources for transmitting the demodulation reference signal of the first downlink transmission overlap with the physical resources for transmitting the SSB;

[0217] The time interval between the terminal receiving the SSB and receiving the demodulation reference signal of the first downlink transmission is less than or equal to the switching time;

[0218] The frequency domain interval between the terminal receiving the SSB and receiving the demodulation reference signal of the first downlink transmission is less than or equal to the protection frequency domain interval.

[0219] In the embodiment of the present application, regarding the meaning of the overlap between the fourth resource and the first resource, reference may be made to the aforementioned description of the overlap between the first resource and the second resource, which will not be repeated here.

[0220] Optionally, in an unlicensed frequency band, and when the first information includes a second time, the terminal determines, based on the first information, whether a synchronization signal block SSB is sent, valid, or available at the first time, including:

[0221] determining, based on the second time, whether the SSB is sent, valid, or available at the first time;

[0222] The second time includes at least one of the following:

[0223] The network side device first listens and then speaks the time when LBT is successful;

[0224] The relative time between the success of the LBT of the network side device and the reception of the first information;

[0225] The remaining time of the channel occupied by the network side device after successful LBT.

[0226] For unlicensed spectrum, in the related art, the reception of PDSCH needs to consider all candidate SSB resources / positions of the existing SSB index indicated by the semi-static signaling ssb-PositionsInBurst, even if the network does not send SSBs in all candidate SSB resources / positions. In an embodiment of the present application, the above-mentioned first information may indicate which candidate SSB resources / positions the network has sent SSBs. When the terminal receives the PDSCH, if it receives the first information, it only needs to consider the candidate SSB resources / positions where the SSBs have been sent based on the received first information.

[0227] Optionally, the first information may also include the absolute time when the network device successfully listens before talking (LBT) or the relative time from the current receipt of the first information and / or the remaining time of the channel occupancy. Based on the time of LBT success, the terminal can calculate which candidate SSB resources / positions have sent SSBs and which candidate SSB resources / positions have not sent SSBs. In other words, for unlicensed frequency bands, the network side device indicates through the first information in which candidate position / positions of the SSB the SSB is transmitted.

[0228] Exemplarily, FIG11 illustrates a technical solution for determining whether an SSB was transmitted, valid, or available at the first time based on the second time. For example, in an unlicensed spectrum network, four SSBs, SSB v0, v1, v2, and v3, are transmitted, and the network has configured 10 SSB candidate locations. Assuming that the first information from the network-side device indicates that the slot where LBT succeeded is slot #1, and there are three remaining channel occupancy slots starting from slot #2, the terminal can infer that the network transmitted SSB v2 and SSB v3 in SSB candidate resources c2 and c3 in slot #1; and SSB v0 and SSB v1 in SSB candidate resources c4 and c5 in slot #2. Since these four SSBs have been transmitted, the network no longer transmits SSBs on the SSB candidate resources in slot #3 and slot #4. That is, the PDSCH in slot #2 needs to rate match SSB v0 and v1; the PDSCH in slot #3 does not need to rate match SSB.

[0229] Optionally, if the terminal does not receive the first information, perform any of the following according to the second information:

[0230] The terminal considers all candidate resources of the SSB or all SSBs at candidate positions of the SSB as being transmitted, valid, or available;

[0231] The terminal regards all candidate resources of the SSB or all SSBs at candidate positions of the SSB as not transmitted or invalid or unavailable;

[0232] The second information includes at least one of the following:

[0233] Second information sent by the network-side device;

[0234] DCI format for scheduling the physical downlink shared channel PDSCH;

[0235] The radio network temporary identifier (RNTI) of the physical downlink control channel (PDCCH) used for scrambling the scheduling PDSCH;

[0236] The search space type of the PDCCH that schedules the PDSCH.

[0237] In the embodiment of the present application, when the terminal does not receive the first information, the terminal's behavior includes at least one of the following:

[0238] Mode 1: Consider all candidate SSB resources / positions, that is, the terminal considers that the SSBs on all candidate SSB resources / positions are sent or valid or available;

[0239] Mode 2: All candidate SSB resources / positions are not considered, that is, the terminal considers that the SSBs on all candidate SSB resources / positions are not sent or are invalid or unavailable.

[0240] Whether to adopt the above-mentioned method 1 or method 2 may be determined by the network configuration; or by the DCI format of the scheduled PDSCH; or by the RNTI of the PDCCH that scrambles the scheduled PDSCH; or by the search space type where the PDCCH that schedules the PDSCH is located, or by protocol agreement.

[0241] For example, the network configuration terminal's behavior is the above-mentioned method 1 or method 2;

[0242] For PDSCH scheduled by fallback DCI, the terminal behavior is mode 1 or mode 2; for PDSCH scheduled by non-fallback DCI, the terminal behavior is mode 2 or mode 1;

[0243] The PDSCH scheduled by the PDCCH scrambled by the Cell-RadioNetworkTemporaryIdentifier (C-RNTI), Configured Scheduling RNTI (CS-RNTI), Group Configured Scheduling RNTI (G-CS-RNTI), and Modulation Coding Scheme Cell RNTI (MCS-C-RNTI) is in mode 1 or mode 2; the terminal behavior is mode 1 or mode 2; the PDSCH scheduled by the PDCCH scrambled by the System Information RNTI (SI-RNTI), Paging RNTI (P-RNTI), Random Access RNTI (RA-RNTI), Temporary Cell RNTI (TC-RNTI), Group RNTI (G-RNTI), and Multicast Control Channel RNTI (MBS Control Channel RNTI) is in mode 1 or mode 2. For PDSCH scheduled by PDCCH scrambled by RNTI, MCCH-RNTI), the terminal behavior is mode 2 or mode 1;

[0244] For PDSCHs scheduled by Type 0 / 0A / 1 / 2 / 2B common search spaces, the terminal behavior is mode 1 or mode 2. For PDSCHs scheduled by Type 3 common search spaces and UE-specific search spaces, the terminal behavior is mode 2 or mode 1.

[0245] Optionally, the SSB includes at least one of the following: the SSB actually sent, the candidate position of the SSB, and the candidate resource of the SSB.

[0246] In an embodiment of the present application, a terminal receives first information sent by a network-side device; the terminal determines at least one of the following information based on the first information: whether the synchronization signal block SSB is sent at the first time or whether it is valid or available; whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission. Through the transmission of the first information, the terminal can clearly understand the transmission status of the SSB, which can help improve the utilization rate of the transmission resources of the communication system.

[0247] Referring to FIG. 12 , FIG. 12 is a flowchart of another information indication method provided in an embodiment of the present application, which is used for a network-side device. As shown in FIG. 12 , the method includes the following steps:

[0248] Step 1201: The network side device sends first information to the terminal;

[0249] The first information is used to determine at least one of the following information:

[0250] Whether the synchronization signal block SSB is sent, valid or available at the first time;

[0251] Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

[0252] Optionally, the first time includes any one of the following:

[0253] a time unit in which the terminal receives the first information;

[0254] The Mth time unit after the time unit in which the terminal receives the first information, where M is a positive integer greater than or equal to 1;

[0255] The Nth time unit before the time unit in which the terminal receives the first information, where N is a positive integer greater than or equal to 1;

[0256] An SSB sending period in which the terminal receives the first information;

[0257] The Xth SSB transmission period after the SSB transmission period in which the terminal receives the first information, where X is a positive integer greater than or equal to 1;

[0258] The terminal receives the Yth SSB transmission period before the SSB transmission period in which the first information is located, where Y is a positive integer greater than or equal to 1.

[0259] Optionally, the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission, including at least one of the following situations:

[0260] The physical resources of the SSB transmission overlap with the physical resources of the first downlink transmission;

[0261] The time interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to the switching time;

[0262] The frequency domain interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to the guard frequency domain interval;

[0263] Alternatively, the first resource occupied by the SSB does not overlap with the second resource occupied by the first downlink transmission, including at least one of the following situations:

[0264] The physical resources of the SSB transmission and the physical resources of the first downlink transmission do not overlap;

[0265] The time interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to the switching time;

[0266] The frequency domain interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to the protection frequency domain interval.

[0267] Optionally, the physical resources of the SSB transmission and the physical resources of the first downlink transmission overlap, including at least one of the following:

[0268] The time resource of the SSB transmission overlaps with the time resource of the first downlink transmission;

[0269] The frequency domain resources of the SSB transmission overlap with the frequency domain resources of the first downlink transmission;

[0270] The spatial resources of the SSB transmission overlap with the spatial resources of the first downlink transmission.

[0271] Optionally, the first information is carried in at least one of semi-static signaling and dynamic signaling.

[0272] Optionally, when the first information is carried in semi-static signaling and dynamic signaling, the dynamic signaling is used to rewrite, update or supplement the semi-static signaling.

[0273] Optionally, the dynamic signaling includes a first dynamic signaling and a second dynamic signaling, and the second dynamic signaling is used to rewrite, update or supplement the first dynamic signaling; wherein, the second dynamic signaling is a dynamic signaling received later than the first dynamic signaling.

[0274] Optionally, the control information carrying the first information includes at least one of the following:

[0275] Non-fallback downlink control information DCI;

[0276] Rollback DCI;

[0277] scheduling a DCI for a first downlink transmission;

[0278] DCI not scheduled for the first downlink transmission.

[0279] Optionally, the control information carrying the first information includes a target indication field, the target indication field includes L bits, and L is less than or equal to the number of SSB indexes supported by a cell.

[0280] Optionally, when L is equal to the number of SSB indexes supported by a cell, one bit of the target indication field is used to indicate whether an SSB index is sent, valid, or available;

[0281] Or, when L is less than the number of SSB indexes supported by a cell, one bit of the target indication field is used to indicate whether an SSB index group is sent, valid, or available;

[0282] Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether the time slot where the first information is located sends an SSB, whether the SSB is valid, or whether the SSB is available;

[0283] Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether SSB is sent or whether SSB is valid or available in M ​​time slots after the time slot where the first information is located, where M is a positive integer greater than or equal to 1;

[0284] Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether SSB is sent in the N time slots before the time slot where the first information is located, whether SSB is valid, or whether SSB is available, where N is a positive integer greater than or equal to 1.

[0285] Optionally, the DCI of the non-scheduled first downlink transmission is used to indicate whether an SSB is sent in one or more time units, or whether the SSB is valid, or whether the SSB is available;

[0286] The non-fallback DCI or fallback DCI or DCI scheduling the first downlink transmission is used to indicate whether the time unit of the first downlink transmission scheduled by the non-fallback DCI or fallback DCI or DCI scheduling the first downlink transmission sends SSB or whether the SSB is valid or whether the SSB is available.

[0287] Optionally, the control information carrying the first information includes fallback DCI, and the first downlink transmission includes transmission of system information block SIB1.

[0288] Optionally, the SSB includes at least one of the following: an actually sent SSB, a candidate position of the SSB, and a candidate resource of the SSB;

[0289] Or, the SSB includes at least one of:

[0290] Cell-defined SSB, non-cell-defined SSB, low-power synchronization signal LP-SS, low-power wake-up signal LP-WUS, control signaling of scheduling system information block SIB1, and control resource set associated with the control signaling of scheduling system information block SIB1 indicated by SSB.

[0291] Optionally, in an unlicensed frequency band, the first information includes a second time;

[0292] The second time includes at least one of the following:

[0293] The network side device first listens and then speaks the time when LBT is successful;

[0294] The relative time between the success of the LBT of the network side device and the reception of the first information;

[0295] The remaining time of the channel occupied by the network side device after successful LBT.

[0296] The information indication method provided in the embodiment of the present application is each process implemented by the network side device corresponding to each process of the method embodiments of Figures 2 to 11, and achieves the same technical effect. To avoid repetition, it will not be repeated here.

[0297] In the information indication method provided by the embodiment of the present application, a network side device sends first information to a terminal; the first information is used to determine at least one of the following information: whether the synchronization signal block SSB is sent at the first time or whether it is valid or available; whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission. By transmitting the first information, the terminal can clearly understand the transmission status of the SSB, which can help improve the utilization rate of the transmission resources of the communication system.

[0298] The information indication method provided in the embodiment of the present application can be executed by an information indication device. In the embodiment of the present application, the method of executing information indication by an information indication device is taken as an example, as shown in Figure 13, to illustrate the information indication device provided in the embodiment of the present application. The information indication device 1300 includes:

[0299] Receiving module 1301, configured to receive first information sent by a network-side device;

[0300] The determining module 1302 is configured to determine at least one of the following information based on the first information:

[0301] Whether the synchronization signal block SSB is sent, valid or available at the first time;

[0302] Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

[0303] Optionally, the first time includes any one of the following:

[0304] a time unit in which the terminal receives the first information;

[0305] The Mth time unit after the time unit in which the terminal receives the first information, where M is a positive integer greater than or equal to 1;

[0306] The Nth time unit before the time unit in which the terminal receives the first information, where N is a positive integer greater than or equal to 1;

[0307] An SSB sending period in which the terminal receives the first information;

[0308] The Xth SSB transmission period after the SSB transmission period in which the terminal receives the first information, where X is a positive integer greater than or equal to 1;

[0309] The terminal receives the Yth SSB transmission period before the SSB transmission period in which the first information is located, where Y is a positive integer greater than or equal to 1.

[0310] Optionally, the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission, including at least one of the following situations:

[0311] The physical resources of the SSB transmission overlap with the physical resources of the first downlink transmission;

[0312] The time interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to the switching time;

[0313] The frequency domain interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to the guard frequency domain interval;

[0314] Alternatively, the first resource occupied by the SSB does not overlap with the second resource occupied by the first downlink transmission, including at least one of the following situations:

[0315] The physical resources of the SSB transmission and the physical resources of the first downlink transmission do not overlap;

[0316] The time interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to the switching time;

[0317] The frequency domain interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to the protection frequency domain interval.

[0318] Optionally, the physical resources of the SSB transmission and the physical resources of the first downlink transmission overlap, including at least one of the following:

[0319] The time resource of the SSB transmission overlaps with the time resource of the first downlink transmission;

[0320] The frequency domain resources of the SSB transmission overlap with the frequency domain resources of the first downlink transmission;

[0321] The spatial resources of the SSB transmission overlap with the spatial resources of the first downlink transmission.

[0322] Optionally, the determining module 1302 includes:

[0323] a conversion module, configured to, when a first subcarrier spacing SCS used by the SSB and a second SCS used by the first downlink transmission are different, convert the first resource according to the second SCS based on the first information to obtain a third resource occupied by the SSB based on the second SCS;

[0324] A first determining submodule, configured to determine whether the third resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission;

[0325] The third resource is a positive integer number of orthogonal frequency division multiplexing OFDM symbols in the time domain, and the third resource is a positive integer number of resource blocks RB or a positive integer number of resource elements RE or a positive integer number of subcarriers in the frequency domain.

[0326] Optionally, the apparatus 1300 further includes at least one of the following:

[0327] a first execution module, configured to, when the terminal determines, based on the first information, that resources occupied by the SSB overlap with resources occupied by the first downlink transmission, not use the overlapping resources for the first downlink transmission;

[0328] a second execution module, configured to receive the first downlink transmission by rate matching the overlapping resources when the terminal determines, based on the first information, that resources occupied by the SSB overlap with resources occupied by the first downlink transmission;

[0329] a third execution module, configured to receive the first downlink transmission by puncturing the overlapping resources when the terminal determines, based on the first information, that resources occupied by the SSB overlap with resources occupied by the first downlink transmission;

[0330] a fourth execution module, configured to, when the terminal determines, based on the first information, that the resources occupied by the SSB overlap with the resources occupied by the first downlink transmission, not use frequency domain resources corresponding to the time domain resources in the overlapping resources for the first downlink transmission;

[0331] a fifth execution module, configured to receive the first downlink transmission by rate matching all frequency domain resources where the time domain resources in the overlapping resources are located, when the terminal determines, based on the first information, that the resources occupied by the SSB overlap with the resources occupied by the first downlink transmission;

[0332] The sixth execution module is used to receive the first downlink transmission by punching all frequency domain resources where the time domain resources in the overlapping resources are located when the terminal determines, based on the first information, that the resources occupied by the SSB overlap with the resources occupied by the first downlink transmission.

[0333] Optionally, the device further comprises at least one of the following:

[0334] a seventh execution module, configured to abandon receiving the first downlink transmission when the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB;

[0335] an eighth execution module, configured to skip receiving the first downlink transmission when the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB;

[0336] a ninth execution module, configured to, when the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB, confirm, by the terminal, that it is not necessary to receive the first downlink transmission;

[0337] a tenth execution module, configured to confirm a network scheduling error when the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB;

[0338] An eleventh execution module is configured to demodulate the first downlink transmission using a demodulation reference signal that does not overlap with the first resource when the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB.

[0339] Optionally, the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB, including at least one of the following situations:

[0340] The physical resources for transmitting the demodulation reference signal of the first downlink transmission overlap with the physical resources for transmitting the SSB;

[0341] The time interval between the terminal receiving the SSB and receiving the demodulation reference signal of the first downlink transmission is less than or equal to the switching time;

[0342] The frequency domain interval between the terminal receiving the SSB and receiving the demodulation reference signal of the first downlink transmission is less than or equal to the protection frequency domain interval.

[0343] Optionally, the first information is carried in at least one of semi-static signaling and dynamic signaling.

[0344] Optionally, when the first information is carried in semi-static signaling and dynamic signaling, the dynamic signaling is used to rewrite, update or supplement the semi-static signaling.

[0345] Optionally, the dynamic signaling includes a first dynamic signaling and a second dynamic signaling, and the second dynamic signaling is used to rewrite, update or supplement the first dynamic signaling; wherein, the second dynamic signaling is a dynamic signaling received later than the first dynamic signaling.

[0346] Optionally, the control information carrying the first information includes at least one of the following:

[0347] Non-fallback downlink control information DCI;

[0348] Rollback DCI;

[0349] scheduling a DCI for a first downlink transmission;

[0350] DCI not scheduled for the first downlink transmission.

[0351] Optionally, the control information carrying the first information includes a target indication field, the target indication field includes L bits, and L is less than or equal to the number of SSB indexes supported by a cell.

[0352] Optionally, when L is equal to the number of SSB indexes supported by a cell, one bit of the target indication field is used to indicate whether an SSB index is sent, valid, or available;

[0353] Or, when L is less than the number of SSB indexes supported by a cell, one bit of the target indication field is used to indicate whether an SSB index group is sent, valid, or available;

[0354] Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether the time slot where the first information is located sends an SSB, whether the SSB is valid, or whether the SSB is available;

[0355] Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether SSB is sent or whether SSB is valid or available in M ​​time slots after the time slot where the first information is located, where M is a positive integer greater than or equal to 1;

[0356] Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether SSB is sent in the N time slots before the time slot where the first information is located, whether SSB is valid, or whether SSB is available, where N is a positive integer greater than or equal to 1.

[0357] Optionally, the DCI of the non-scheduled first downlink transmission is used to indicate whether an SSB is sent in one or more time units, or whether the SSB is valid, or whether the SSB is available;

[0358] The non-fallback DCI or fallback DCI or DCI scheduling the first downlink transmission is used to indicate whether the time unit of the first downlink transmission scheduled by the non-fallback DCI or fallback DCI or DCI scheduling the first downlink transmission sends SSB or whether the SSB is valid or whether the SSB is available.

[0359] Optionally, the control information carrying the first information includes fallback DCI, and the first downlink transmission includes transmission of system information block SIB1.

[0360] Optionally, the SSB includes at least one of the following: an actually sent SSB, a candidate position of the SSB, and a candidate resource of the SSB;

[0361] Or, the SSB includes at least one of:

[0362] Cell-defined SSB, non-cell-defined SSB, low-power synchronization signal LP-SS, low-power wake-up signal LP-WUS, control signaling of scheduling system information block SIB1, and control resource set associated with the control signaling of scheduling system information block SIB1 indicated by SSB.

[0363] Optionally, the determining module 1302 includes:

[0364] a second determining submodule, configured to, in an unlicensed frequency band and when the first information includes a second time, determine, based on the second time, whether the SSB is sent, valid, or available at the first time;

[0365] The second time includes at least one of the following:

[0366] The network side device first listens and then speaks the time when LBT is successful;

[0367] The relative time between the success of the LBT of the network side device and the reception of the first information;

[0368] The remaining time of the channel occupied by the network side device after successful LBT.

[0369] Optionally, the device further comprises at least one of the following:

[0370] a twelfth execution module, configured to, if the terminal does not receive the first information, regard all candidate resources of the SSB or all SSBs at candidate positions of the SSB as being sent, valid, or available;

[0371] A thirteenth execution module is configured to, if the terminal does not receive the first information, regard all candidate resources of the SSB or all SSBs at candidate positions of the SSB as not sent or invalid or unavailable;

[0372] The second information includes at least one of the following:

[0373] Second information sent by the network-side device;

[0374] DCI format for scheduling the physical downlink shared channel PDSCH;

[0375] The radio network temporary identifier (RNTI) of the physical downlink control channel (PDCCH) used for scrambling the scheduling PDSCH;

[0376] The search space type of the PDCCH that schedules the PDSCH.

[0377] The information indication device provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 2 to 11 and achieve the same technical effects. To avoid repetition, they will not be described here.

[0378] The information indication method provided in the embodiment of the present application can be executed by an information indication device. In the embodiment of the present application, the method for an information indication device to perform information indication is taken as an example, as shown in FIG14 , to illustrate the information indication device provided in the embodiment of the present application. The information indication device 1400 includes:

[0379] The sending module 1401 is configured to send first information to a terminal;

[0380] The first information is used to determine at least one of the following information:

[0381] Whether the synchronization signal block SSB is sent, valid or available at the first time;

[0382] Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

[0383] Optionally, the first time includes any one of the following:

[0384] a time unit in which the terminal receives the first information;

[0385] The Mth time unit after the time unit in which the terminal receives the first information, where M is a positive integer greater than or equal to 1;

[0386] The Nth time unit before the time unit in which the terminal receives the first information, where N is a positive integer greater than or equal to 1;

[0387] An SSB sending period in which the terminal receives the first information;

[0388] The Xth SSB transmission period after the SSB transmission period in which the terminal receives the first information, where X is a positive integer greater than or equal to 1;

[0389] The terminal receives the Yth SSB transmission period before the SSB transmission period in which the first information is located, where Y is a positive integer greater than or equal to 1.

[0390] Optionally, the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission, including at least one of the following situations:

[0391] The physical resources of the SSB transmission overlap with the physical resources of the first downlink transmission;

[0392] The time interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to the switching time;

[0393] The frequency domain interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to the guard frequency domain interval;

[0394] Alternatively, the first resource occupied by the SSB does not overlap with the second resource occupied by the first downlink transmission, including at least one of the following situations:

[0395] The physical resources of the SSB transmission and the physical resources of the first downlink transmission do not overlap;

[0396] The time interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to the switching time;

[0397] The frequency domain interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to the protection frequency domain interval.

[0398] Optionally, the physical resources of the SSB transmission and the physical resources of the first downlink transmission overlap, including at least one of the following:

[0399] The time resource of the SSB transmission overlaps with the time resource of the first downlink transmission;

[0400] The frequency domain resources of the SSB transmission overlap with the frequency domain resources of the first downlink transmission;

[0401] The spatial resources of the SSB transmission overlap with the spatial resources of the first downlink transmission.

[0402] Optionally, the first information is carried in at least one of semi-static signaling and dynamic signaling.

[0403] Optionally, when the first information is carried in semi-static signaling and dynamic signaling, the dynamic signaling is used to rewrite, update or supplement the semi-static signaling.

[0404] Optionally, the dynamic signaling includes a first dynamic signaling and a second dynamic signaling, and the second dynamic signaling is used to rewrite, update or supplement the first dynamic signaling; wherein, the second dynamic signaling is a dynamic signaling received later than the first dynamic signaling.

[0405] Optionally, the control information carrying the first information includes at least one of the following:

[0406] Non-fallback downlink control information DCI;

[0407] Rollback DCI;

[0408] scheduling a DCI for a first downlink transmission;

[0409] DCI not scheduled for the first downlink transmission.

[0410] Optionally, the control information carrying the first information includes a target indication field, the target indication field includes L bits, and L is less than or equal to the number of SSB indexes supported by a cell.

[0411] Optionally, when L is equal to the number of SSB indexes supported by a cell, one bit of the target indication field is used to indicate whether an SSB index is sent, valid, or available;

[0412] Or, when L is less than the number of SSB indexes supported by a cell, one bit of the target indication field is used to indicate whether an SSB index group is sent, valid, or available;

[0413] Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether the time slot where the first information is located sends an SSB, whether the SSB is valid, or whether the SSB is available;

[0414] Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether SSB is sent or whether SSB is valid or available in M ​​time slots after the time slot where the first information is located, where M is a positive integer greater than or equal to 1;

[0415] Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether SSB is sent in the N time slots before the time slot where the first information is located, whether SSB is valid, or whether SSB is available, where N is a positive integer greater than or equal to 1.

[0416] Optionally, the DCI of the non-scheduled first downlink transmission is used to indicate whether an SSB is sent in one or more time units, or whether the SSB is valid, or whether the SSB is available;

[0417] The non-fallback DCI or fallback DCI or DCI scheduling the first downlink transmission is used to indicate whether the time unit of the first downlink transmission scheduled by the non-fallback DCI or fallback DCI or DCI scheduling the first downlink transmission sends SSB or whether the SSB is valid or whether the SSB is available.

[0418] Optionally, the control information carrying the first information includes fallback DCI, and the first downlink transmission includes transmission of system information block SIB1.

[0419] Optionally, the SSB includes at least one of the following: an actually sent SSB, a candidate position of the SSB, and a candidate resource of the SSB;

[0420] Or, the SSB includes at least one of:

[0421] Cell-defined SSB, non-cell-defined SSB, low-power synchronization signal LP-SS, low-power wake-up signal LP-WUS, control signaling of scheduling system information block SIB1, and control resource set associated with the control signaling of scheduling system information block SIB1 indicated by SSB.

[0422] Optionally, in an unlicensed frequency band, the first information includes a second time;

[0423] The second time includes at least one of the following:

[0424] The network side device first listens and then speaks the time when LBT is successful;

[0425] The relative time between the success of the LBT of the network side device and the reception of the first information;

[0426] The remaining time of the channel occupied by the network side device after successful LBT.

[0427] The information indication device provided in the embodiment of the present application can implement the various processes implemented in the method embodiment of Figure 12 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0428] The information indicating device 1300 or the information indicating device 1400 in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or other device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and the other device can be a server, a network attached storage (NAS), etc., which is not specifically limited in the embodiments of the present application.

[0429] As shown in Figure 15, an embodiment of the present application further provides a communication device 1500, including a processor 1501 and a memory 1502. The memory 1502 stores a program or instruction that can be run on the processor 1501. For example, when the communication device 1500 is a terminal, the program or instruction, when executed by the processor 1501, implements the various steps of the embodiment of the information indication method shown in Figure 2 above, and can achieve the same technical effect. When the communication device 1500 is a network-side device, the program or instruction, when executed by the processor 1501, implements the various steps of the embodiment of the information indication method shown in Figure 12 above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0430] The present application also provides a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG2 . This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this terminal embodiment and can achieve the same technical effects. Specifically, FIG16 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0431] The terminal 1600 includes but is not limited to: a radio frequency unit 1601, a network module 1602, an audio output unit 1603, an input unit 1604, a sensor 1605, a display unit 1606, a user input unit 1607, an interface unit 1608, a memory 1609 and at least some of the components of the processor 1610.

[0432] Those skilled in the art will appreciate that the terminal 1600 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 1610 via a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG16 does not constitute a limitation of the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be described in detail here.

[0433] It should be understood that in an embodiment of the present application, the input unit 1604 may include a graphics processing unit (GPU) 16041 and a microphone 16042, and the graphics processor 16041 processes image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1606 may include a display panel 16061, and the display panel 16061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1607 includes a touch panel 16071 and at least one of other input devices 16072. The touch panel 16071 is also called a touch screen. The touch panel 16071 may include two parts: a touch detection device and a touch controller. Other input devices 16072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0434] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 1601 may transmit the data to the processor 1610 for processing. Furthermore, the RF unit 1601 may send uplink data to the network-side device. Typically, the RF unit 1601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0435] Memory 1609 can be used to store software programs or instructions and various data. Memory 1609 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, memory 1609 may include volatile memory or non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 1609 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0436] Processor 1610 may include one or more processing units. Optionally, processor 1610 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1610.

[0437] The radio frequency unit 1601 is configured to receive first information sent by a network-side device;

[0438] The processor 1610 is configured to determine at least one of the following information based on the first information:

[0439] Whether the synchronization signal block SSB is sent, valid or available at the first time;

[0440] Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

[0441] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment Figures 2-11, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0442] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG12 . This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0443] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 17, network-side device 1700 includes an antenna 171, a radio frequency device 172, a baseband device 173, a processor 174, and a memory 175. Antenna 171 is connected to radio frequency device 172. In the uplink direction, radio frequency device 172 receives information via antenna 171 and sends the received information to baseband device 173 for processing. In the downlink direction, baseband device 173 processes the information to be transmitted and sends it to radio frequency device 172. Radio frequency device 172 processes the received information and then sends it through antenna 171.

[0444] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 173 , which includes a baseband processor.

[0445] The baseband device 173 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 17, one of which is, for example, a baseband processor, which is connected to the memory 175 through a bus interface to call the program in the memory 175 and execute the network device operations shown in the above method embodiment.

[0446] The network side device may further include a network interface 176, which is, for example, a Common Public Radio Interface (CPRI).

[0447] Specifically, the network side device 1700 of the embodiment of the present application also includes: instructions or programs stored in the memory 175 and can be run on the processor 174. The processor 174 calls the instructions or programs in the memory 175 to execute the methods executed by each module shown in Figure 14 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0448] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by the processor, the various processes of the information indication method embodiment shown in Figure 2 above are implemented, or when the program or instruction is executed by the processor, the various processes of the information indication method embodiment shown in Figure 12 above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0449] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0450] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the information indication method embodiment shown in Figures 2 or 12 above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0451] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0452] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium, and is executed by at least one processor to implement the various processes of the information indication method embodiment shown in Figure 2 above, or the computer program / program product is executed by at least one processor to implement the various processes of the information indication method embodiment shown in Figure 12 above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0453] An embodiment of the present application also provides a communication system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the information indication method shown in Figure 2 as described above, and the network side device can be used to execute the steps of the information indication method shown in Figure 12 as described above.

[0454] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude whether other identical elements are valid or available in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0455] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0456] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. An information indication method, wherein: include: The terminal receives the first information sent by the network side device; The terminal determines, based on the first information, at least one of the following information: Whether the synchronization signal block SSB is sent, valid or available at the first time; Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

2. The method according to claim 1, wherein The first time includes any one of the following: a time unit in which the terminal receives the first information; The Mth time unit after the time unit in which the terminal receives the first information, where M is a positive integer greater than or equal to 1; The Nth time unit before the time unit in which the terminal receives the first information, where N is a positive integer greater than or equal to 1; An SSB sending period in which the terminal receives the first information; The Xth SSB transmission period after the SSB transmission period in which the terminal receives the first information, where X is a positive integer greater than or equal to 1; The terminal receives the Yth SSB transmission period before the SSB transmission period in which the first information is located, where Y is a positive integer greater than or equal to 1.

3. The method according to claim 1, wherein The first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission, including at least one of the following situations: The physical resources of the SSB transmission overlap with the physical resources of the first downlink transmission; The time interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to the switching time; The frequency domain interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to the guard frequency domain interval; Alternatively, the first resource occupied by the SSB does not overlap with the second resource occupied by the first downlink transmission, including at least one of the following situations: The physical resources of the SSB transmission and the physical resources of the first downlink transmission do not overlap; The time interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to the switching time; The frequency domain interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to the protection frequency domain interval.

4. The method according to any one of claims 1 to 3, wherein The physical resources of the SSB transmission overlap with the physical resources of the first downlink transmission, including at least one of the following: The time resource of the SSB transmission overlaps with the time resource of the first downlink transmission; The frequency domain resources of the SSB transmission overlap with the frequency domain resources of the first downlink transmission; The spatial resources of the SSB transmission overlap with the spatial resources of the first downlink transmission.

5. The method according to any one of claims 1 to 4, wherein The terminal determines, based on the first information, whether first resources occupied by the SSB overlap with second resources occupied by the first downlink transmission, including: When a first subcarrier spacing SCS used by the SSB and a second SCS used by the first downlink transmission are different, the terminal converts the first resource according to the second SCS based on the first information to obtain a third resource occupied by the SSB under the second SCS; The terminal determines whether the third resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission; The third resource is a positive integer number of orthogonal frequency division multiplexing OFDM symbols in the time domain, and the third resource is a positive integer number of resource blocks RB or a positive integer number of resource elements RE or a positive integer number of subcarriers in the frequency domain.

6. The method according to any one of claims 1 to 5, wherein When the terminal determines, based on the first information, that resources occupied by the SSB overlap with resources occupied by the first downlink transmission, the method further includes at least one of the following: The terminal does not use overlapping resources for the first downlink transmission; The terminal receives the first downlink transmission by rate matching overlapping resources; The terminal receives the first downlink transmission by puncturing overlapping resources; The terminal does not use the frequency domain resources corresponding to the time domain resources in the overlapping resources for the first downlink transmission; The terminal receives the first downlink transmission by rate matching all frequency domain resources where the time domain resources in the overlapping resources are located; The terminal receives the first downlink transmission by puncturing all frequency domain resources where the time domain resources in the overlapping resources are located.

7. The method according to any one of claims 1 to 6, wherein The method further comprises: When the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB, the terminal performs at least one of the following: The terminal abandons receiving the first downlink transmission; The terminal skips receiving the first downlink transmission; The terminal does not need to receive the first downlink transmission; The terminal confirms a network scheduling error; The terminal demodulates the first downlink transmission using a demodulation reference signal that does not overlap with the first resource.

8. The method according to claim 7, wherein: The fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB, including at least one of the following situations: The physical resources for transmitting the demodulation reference signal of the first downlink transmission overlap with the physical resources for transmitting the SSB; The time interval between the terminal receiving the SSB and receiving the demodulation reference signal of the first downlink transmission is less than or equal to the switching time; The frequency domain interval between the terminal receiving the SSB and receiving the demodulation reference signal of the first downlink transmission is less than or equal to the protection frequency domain interval.

9. The method according to any one of claims 1 to 8, wherein The first information is carried in at least one of semi-static signaling and dynamic signaling.

10. The method according to claim 9, wherein: In the case where the first information is carried in semi-static signaling and dynamic signaling, the dynamic signaling is used to rewrite, update or supplement the semi-static signaling.

11. The method according to claim 9 or 10, wherein: The dynamic signaling includes a first dynamic signaling and a second dynamic signaling, wherein the second dynamic signaling is used to rewrite, update or supplement the first dynamic signaling; wherein the second dynamic signaling is a dynamic signaling received later than the first dynamic signaling.

12. The method according to any one of claims 9 to 11, wherein: The control information carrying the first information includes at least one of the following: Non-fallback downlink control information DCI; Rollback DCI; scheduling a DCI for a first downlink transmission; DCI not scheduled for the first downlink transmission.

13. The method according to claim 12, wherein: The control information carrying the first information includes a target indication field, the target indication field includes L bits, and the L is less than or equal to the number of SSB indexes supported by a cell.

14. The method according to claim 13, wherein In the case where L is equal to the number of SSB indexes supported by a cell, one bit of the target indication field is used to indicate whether an SSB index is sent, valid, or available; Or, when L is less than the number of SSB indexes supported by a cell, one bit of the target indication field is used to indicate whether an SSB index group is sent, valid, or available; Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether the time slot where the first information is located sends an SSB, whether the SSB is valid, or whether the SSB is available; Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether SSB is sent or whether SSB is valid or available in M ​​time slots after the time slot where the first information is located, where M is a positive integer greater than or equal to 1; Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether SSB is sent in the N time slots before the time slot where the first information is located, whether SSB is valid, or whether SSB is available, where N is a positive integer greater than or equal to 1.

15. The method according to any one of claims 12 to 14, wherein The DCI of the non-scheduled first downlink transmission is used to indicate whether the SSB is sent or whether the SSB is valid or available in one or more time units; The non-fallback DCI or fallback DCI or DCI scheduling the first downlink transmission is used to indicate whether the time unit of the first downlink transmission scheduled by the non-fallback DCI or fallback DCI or DCI scheduling the first downlink transmission sends SSB or whether the SSB is valid or whether the SSB is available.

16. The method according to any one of claims 12 to 15, wherein: The control information carrying the first information includes fallback DCI, and the first downlink transmission includes transmission of a system information block SIB1.

17. The method according to any one of claims 1 to 16, wherein: The SSB includes at least one of the following: an actually transmitted SSB, a candidate position of the SSB, and a candidate resource of the SSB; Or, the SSB includes at least one of: Cell-defined SSB, non-cell-defined SSB, low-power synchronization signal LP-SS, low-power wake-up signal LP-WUS, control signaling of scheduling system information block SIB1, and control resource set associated with the control signaling of scheduling system information block SIB1 indicated by SSB.

18. The method according to any one of claims 1 to 17, wherein In an unlicensed frequency band, and the first information includes a second time; The terminal determining, based on the first information, whether a synchronization signal block SSB is sent at a first time or is valid or available, including: determining, based on the second time, whether the SSB is sent, valid, or available at the first time; The second time includes at least one of the following: The network side device first listens and then speaks the time when LBT is successful; The relative time between the success of the LBT of the network side device and the reception of the first information; The remaining time of the channel occupied by the network side device after successful LBT.

19. The method according to any one of claims 1 to 18, wherein If the terminal does not receive the first information, perform any of the following according to the second information: The terminal considers all candidate resources of the SSB or all SSBs at candidate positions of the SSB as being transmitted, valid, or available; The terminal regards all candidate resources of the SSB or all SSBs at candidate positions of the SSB as not transmitted or invalid or unavailable; The second information includes at least one of the following: Second information sent by the network-side device; DCI format for scheduling the physical downlink shared channel PDSCH; The radio network temporary identifier (RNTI) of the physical downlink control channel (PDCCH) used for scrambling the scheduling PDSCH; The search space type of the PDCCH that schedules the PDSCH.

20. An information indication method, wherein: include: The network side device sends first information to the terminal; The first information is used to determine at least one of the following information: Whether the synchronization signal block SSB is sent, valid or available at the first time; Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

21. The method according to claim 20, wherein The first information is carried in at least one of semi-static signaling and dynamic signaling.

22. The method according to claim 21, wherein In the case where the first information is carried in semi-static signaling and dynamic signaling, the dynamic signaling is used to rewrite, update or supplement the semi-static signaling.

23. The method according to claim 21 or 22, wherein The dynamic signaling includes a first dynamic signaling and a second dynamic signaling, wherein the second dynamic signaling is used to rewrite, update or supplement the first dynamic signaling; wherein the second dynamic signaling is a dynamic signaling received later than the first dynamic signaling.

24. The method according to any one of claims 20 to 23, wherein The control information carrying the first information includes at least one of the following: Non-fallback downlink control information DCI; Rollback DCI; scheduling a DCI for a first downlink transmission; DCI not scheduled for the first downlink transmission.

25. The method according to claim 24, wherein The control information carrying the first information includes a target indication field, the target indication field includes L bits, and the L is less than or equal to the number of SSB indexes supported by a cell.

26. The method according to claim 25, wherein In the case where L is equal to the number of SSB indexes supported by a cell, one bit of the target indication field is used to indicate whether an SSB index is sent, valid, or available; Or, when L is less than the number of SSB indexes supported by a cell, one bit of the target indication field is used to indicate whether an SSB index group is sent, valid, or available; Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether the time slot where the first information is located sends an SSB, whether the SSB is valid, or whether the SSB is available; Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether SSB is sent or whether SSB is valid or available in M ​​time slots after the time slot where the first information is located, where M is a positive integer greater than or equal to 1; Or, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether SSB is sent in the N time slots before the time slot where the first information is located, whether SSB is valid, or whether SSB is available, where N is a positive integer greater than or equal to 1.

27. The method according to any one of claims 24 to 26, wherein: The DCI of the non-scheduled first downlink transmission is used to indicate whether the SSB is sent or whether the SSB is valid or available in one or more time units; The non-fallback DCI or fallback DCI or DCI scheduling the first downlink transmission is used to indicate whether the time unit of the first downlink transmission scheduled by the non-fallback DCI or fallback DCI or DCI scheduling the first downlink transmission sends SSB or whether the SSB is valid or whether the SSB is available.

28. The method according to any one of claims 24 to 27, wherein The control information carrying the first information includes fallback DCI, and the first downlink transmission includes transmission of a system information block SIB1.

29. The method according to any one of claims 20 to 28, wherein The SSB includes at least one of the following: an actually transmitted SSB, a candidate position of the SSB, and a candidate resource of the SSB; Or, the SSB includes at least one of: Cell-defined SSB, non-cell-defined SSB, low-power synchronization signal LP-SS, low-power wake-up signal LP-WUS, control signaling of scheduling system information block SIB1, and control resource set associated with the control signaling of scheduling system information block SIB1 indicated by SSB.

30. The method according to any one of claims 20 to 29, wherein In an unlicensed frequency band, the first information includes a second time; The second time includes at least one of the following: The network side device first listens and then speaks the time when LBT is successful; The relative time between the success of the LBT of the network side device and the reception of the first information; The remaining time of the channel occupied by the network side device after successful LBT.

31. An information indicating device, wherein: The device comprises: A receiving module, configured to receive first information sent by a network-side device; A determination module, configured to determine at least one of the following information based on the first information: Whether the synchronization signal block SSB is sent, valid or available at the first time; Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

32. The apparatus according to claim 31, wherein The determining module includes: a conversion module, configured to, when a first subcarrier spacing SCS used by the SSB and a second SCS used by the first downlink transmission are different, convert the first resource according to the second SCS based on the first information to obtain a third resource occupied by the SSB based on the second SCS; A first determining submodule, configured to determine whether the third resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission; The third resource is a positive integer number of orthogonal frequency division multiplexing OFDM symbols in the time domain, and the third resource is a positive integer number of resource blocks RB or a positive integer number of resource elements RE or a positive integer number of subcarriers in the frequency domain.

33. The device according to claim 31 or 32, wherein The device further comprises at least one of the following: a first execution module, configured to, when the terminal determines, based on the first information, that resources occupied by the SSB overlap with resources occupied by the first downlink transmission, not use the overlapping resources for the first downlink transmission; a second execution module, configured to receive the first downlink transmission by rate matching the overlapping resources when the terminal determines, based on the first information, that resources occupied by the SSB overlap with resources occupied by the first downlink transmission; a third execution module, configured to receive the first downlink transmission by puncturing the overlapping resources when the terminal determines, based on the first information, that resources occupied by the SSB overlap with resources occupied by the first downlink transmission; a fourth execution module, configured to, when the terminal determines, based on the first information, that the resources occupied by the SSB overlap with the resources occupied by the first downlink transmission, not use frequency domain resources corresponding to the time domain resources in the overlapping resources for the first downlink transmission; a fifth execution module, configured to receive the first downlink transmission by rate matching all frequency domain resources where the time domain resources in the overlapping resources are located, when the terminal determines, based on the first information, that the resources occupied by the SSB overlap with the resources occupied by the first downlink transmission; The sixth execution module is used to receive the first downlink transmission by punching all frequency domain resources where the time domain resources in the overlapping resources are located when the terminal determines, based on the first information, that the resources occupied by the SSB overlap with the resources occupied by the first downlink transmission.

34. The device according to any one of claims 31 to 33, wherein The device further comprises at least one of the following: a seventh execution module, configured to abandon receiving the first downlink transmission when the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB; an eighth execution module, configured to skip receiving the first downlink transmission when the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB; a ninth execution module, configured to, when the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB, confirm, by the terminal, that it is not necessary to receive the first downlink transmission; a tenth execution module, configured to confirm a network scheduling error when the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB; An eleventh execution module is configured to demodulate the first downlink transmission using a demodulation reference signal that does not overlap with the first resource when the fourth resource occupied by the demodulation reference signal of the first downlink transmission overlaps with the first resource occupied by the SSB.

35. The device according to any one of claims 31 to 34, wherein The determining module includes: a second determining submodule, configured to, in an unlicensed frequency band and when the first information includes a second time, determine, based on the second time, whether the SSB is sent, valid, or available at the first time; The second time includes at least one of the following: The network side device first listens and then speaks the time when LBT is successful; The relative time between the success of the LBT of the network side device and the reception of the first information; The remaining time of the channel occupied by the network side device after successful LBT.

36. The device according to any one of claims 31 to 35, wherein The device further comprises at least one of the following: a twelfth execution module, configured to, if the terminal does not receive the first information, regard all candidate resources of the SSB or all SSBs at candidate positions of the SSB as being sent, valid, or available; A thirteenth execution module is configured to, if the terminal does not receive the first information, regard all candidate resources of the SSB or all SSBs at candidate positions of the SSB as not sent or invalid or unavailable; The second information includes at least one of the following: Second information sent by the network-side device; DCI format for scheduling the physical downlink shared channel PDSCH; The radio network temporary identifier (RNTI) of the physical downlink control channel (PDCCH) used for scrambling the scheduling PDSCH; The search space type of the PDCCH that schedules the PDSCH.

37. An information indicating device, wherein: The device comprises: A sending module, configured to send first information to a terminal; The first information is used to determine at least one of the following information: Whether the synchronization signal block SSB is sent, valid or available at the first time; Whether the first resources occupied by the SSB overlap with the second resources occupied by the first downlink transmission.

38. The apparatus according to claim 37, wherein In an unlicensed frequency band, the first information includes a second time; The second time includes at least one of the following: The network side device first listens and then speaks the time when LBT is successful; The relative time between the success of the LBT of the network side device and the reception of the first information; The remaining time of the channel occupied by the network side device after successful LBT.

39. A terminal, wherein: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the information indication method according to any one of claims 1 to 19 are implemented.

40. A network side device, wherein: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the information indication method according to any one of claims 20 to 30 are implemented.

41. A readable storage medium, wherein: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the information indication method according to any one of claims 1 to 19, or implements the steps of the information indication method according to any one of claims 20 to 30.

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