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

Abstract

The invention discloses an information indication method and device, a terminal, network side equipment and a medium, and belongs to the field of communication, and the information indication method comprises the steps that the terminal receives first information sent by the network side equipment; the terminal determines, based on the first information, at least one of the following information: whether a synchronization signal block SSB is sent or valid or available at a first time; in the embodiment of the invention, whether the first resource occupied by the SSB is overlapped with the second resource occupied by the first downlink transmission is judged, and the terminal determines the transmission condition of the SSB through the transmission of the first information, so that the utilization rate of the transmission resource of the communication system can be improved.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to an information indication method, apparatus, terminal, network-side device, and medium. Background Art

[0002] In related technologies, there are several restrictions on the transmission of synchronization signal blocks or synchronization signal / physical broadcast channel blocks (SS / PBCH Block or SSB). For example, when a terminal receives System Information Block 1 (SIB1), it is assumed that there is no symbol overlap between the time and frequency domain resources for the network side to transmit SIB1 and any candidate position of an SSB. When the network sends other downlink data channels except SIB1, if the resource allocation of the Physical Downlink Shared Channel (PDSCH) 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 Orthogonal Frequency Division Multiplexing (OFDM) symbols. It can be seen that the utilization rate of downlink transmission resources in related technologies is relatively low. Summary of the Invention

[0003] Embodiments of this application provide an information indication method, apparatus, terminal, network-side device, and medium, which can solve the problem of relatively low utilization rate of downlink transmission resources in related technologies.

[0004] In a first aspect, an information indication method is provided, and the method includes: a terminal receives first information sent by a network-side device;

[0005] Based on the first information, the terminal determines at least one of the following information:

[0006] Whether a synchronization signal block SSB is sent or valid or available at a first time;

[0007] Whether a first resource occupied by the SSB overlaps with a second resource occupied by a first downlink transmission.

[0008] Second aspect, there is provided a method for information indication, the method comprising:

[0009] The network side device sends first information to the terminal;

[0010] The first information is used to determine at least one of the following information:

[0011] Whether the synchronization signal block SSB is sent or valid or available at a first time;

[0012] Whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission.

[0013] Third aspect, there is provided an information indication apparatus, comprising:

[0014] A receiving module, configured to receive the first information sent by the network side device;

[0015] A determining module, configured to determine, based on the first information, at least one of the following information:

[0016] Whether the synchronization signal block SSB is sent or valid or available at a first time;

[0017] Whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission.

[0018] Fourth aspect, there is provided an information indication apparatus, comprising:

[0019] A sending module, configured to send the first information to the terminal;

[0020] The first information is used to determine at least one of the following information:

[0021] Whether the synchronization signal block SSB is sent or valid or available at a first time;

[0022] Whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission.

[0023] Fifth aspect, there is provided a terminal, the terminal comprising a processor and a memory, the memory storing a program or instruction executable 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.

[0024] Sixth aspect, there is provided a terminal, comprising a processor and a communication interface, wherein the communication interface is configured to receive the first information sent by the network side device, and the processor is configured to determine, based on the first information, at least one of the following information:

[0025] Whether the synchronization signal block SSB is sent or valid or available at a first time;

[0026] Whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission.

[0027] In a seventh aspect, a network-side device is provided, which includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the method described in the second aspect are implemented.

[0028] In an eighth aspect, a network-side device is provided, including a communication interface. The communication interface is used to send first information to a terminal.

[0029] The first information is used to determine at least one of the following information:

[0030] Whether the synchronization signal block (SSB) is transmitted or valid or available at a first time;

[0031] Whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission.

[0032] In a ninth aspect, a readable storage medium is provided. A program or instruction is stored on the readable storage medium. 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.

[0033] In a tenth aspect, a wireless communication system is provided, including a terminal and a network-side device. 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.

[0034] In an eleventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement the method described in the first aspect, or to implement the method described in the second aspect.

[0035] In a twelfth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the steps of the information indication method 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 described in the second aspect.

[0036] In an embodiment of the present application, a terminal receives first information sent by a network-side device; based on the first information, the terminal determines at least one of the following information: whether a synchronization signal block (SSB) is transmitted or valid or available at a first time; 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 clarify the transmission situation of the SSB, which is conducive to improving the utilization rate of transmission resources in a communication system. Description of the Drawings

[0037] Figure 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied;

[0038] Figure 2 is a flowchart of a method for information indication provided by an embodiment of the present application;

[0039] Figure 3 is a schematic diagram of resource overlap provided by an embodiment of the present application;

[0040] Figure 4 is a schematic diagram of resource conversion provided by an embodiment of the present application;

[0041] Figure 5 is a schematic diagram of resource utilization provided by an embodiment of the present application;

[0042] Figure 6 is another schematic diagram of resource utilization provided by an embodiment of the present application;

[0043] Figure 7 is another schematic diagram of resource utilization provided by an embodiment of the present application;

[0044] Figure 8 is another schematic diagram of resource utilization provided by an embodiment of the present application;

[0045] Figure 9 is another schematic diagram of resource utilization provided by an embodiment of the present application;

[0046] Figure 10 is another schematic diagram of resource utilization provided by an embodiment of the present application;

[0047] Figure 11 is another schematic diagram of resource utilization provided by an embodiment of the present application;

[0048] Figure 12 is a flowchart of another method for information indication provided by an embodiment of the present application;

[0049] Figure 13 is a schematic diagram of an information indication device provided by an embodiment of the present application;

[0050] Figure 14 It is a schematic diagram of another information indicating device provided by an embodiment of the present application;

[0051] Figure 15 It is a schematic diagram of a communication device provided by an embodiment of the present application;

[0052] Figure 16 It is a schematic diagram of a terminal provided by an embodiment of the present application;

[0053] Figure 17 It is a schematic diagram of a network-side device provided by an embodiment of the present application. Detailed implementation manners

[0054] Next, the technical solutions in the embodiments of the present application will be clearly described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0055] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances 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 usually of the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0056] The term "indication" in the present application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly informs the receiver of specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0057] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, 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 this application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and the NR term is used in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th th Generation (6G) communication system.

[0058] Figure 1Block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a 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, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home devices with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), a game console, a personal computer (PC), a teller machine or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be called a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be called a radio access network (RAN) device, a radio access network function or a radio access network unit. The access network device can 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, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0059] The core network device may include, but is not limited to, at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), Network Data Analytics Function (NWDAF), etc. It should be noted that in the embodiments of this application, only the core network devices in the NR system are taken as examples for introduction, and the specific types of core network devices are not limited.

[0060] For ease of understanding, some content related to the embodiments of this application is described below:

[0061] The transmission of 5G SS / PBCH (SSB) on the unlicensed band. Since the transmission time of SSB changes with the busy / idle state of the channel, multiple SSB candidate positions are introduced for the indices (beams) of different SSBs. Additionally, to meet the requirement of occupying the channel bandwidth (OCB), it mainly relies on the network to schedule other downlink signals on the frequency resources of non-SSB on the symbol where the SSB is located. For terminals operating on the unlicensed band, since they don't know when the network occupies the channel for SSB transmission, there are the following two limitations in the current protocol:

[0062] 1) The number of SSBs (candidate SSBs) that the network side device may send is notified to the terminal by the system information SIB1. Therefore, when the terminal receives SIB1, the terminal assumes that there will be no overlap of at least one symbol between the time domain and frequency domain resources for the network side to transmit SIB1 and any candidate position of an SSB;

[0063] 2) Except for 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, then the terminal (User Equipment, UE) assumes that the PRBs of all candidate SSB block transmission resources corresponding to the SSB block indices provided by ssb-PositionsInBurst in SIB1 are not available for PDSCH transmission in the OFDM symbol, based on the SSB indicated by ssb-PositionsInBurst in SIB1.

[0064] In other words, when receiving a Physical Downlink Shared Channel (PDSCH) scheduled by a System Information - Radio Network Temporary Indentifier (SI - RNTI) in the common search space of a Physical Hybrid ARQ Indicator Channel (PDCCH - Type0), and when the system information indicator in the Downlink Control Information (DCI) is set to 0, the UE shall assume that no Synchronization Signal Block (SSB) is transmitted to the UE in the Resource Elements (REs) used for PDSCH reception. This assumption limits the multiplexing possibility between the SSB and the PDSCH carrying SIB1. The current protocol requires that the reception of the PDSCH needs to consider all candidate SSB resources / positions indicated by the semi - static signaling ssb - PositionsInBurst, even if the network does not transmit SSBs at all candidate SSB resources / positions.

[0065] The above - mentioned limitation actually restricts the resource scheduling of the network - side device and reduces the resource utilization rate. Even if the network - side device does not transmit an SSB at some candidate SSB transmission resources, the network - side device needs to avoid scheduling SIB1 and any SSB candidate resource with time - frequency domain overlap. When the terminal side receives other downlink PDSCHs except SIB1, if the frequency - domain resources of other downlink PDSCH transmissions and SSB candidate resources have Physical Resource Block (PRB) overlap, the terminal needs to perform rate matching on the received PDSCH at all candidate SSB transmission resources. It can be seen that the utilization rate of downlink transmission resources in the related art is relatively low.

[0066] Embodiments of the present application provide an information indication method, apparatus, terminal, network - side device, and medium to improve resource utilization.

[0067] The following, in conjunction with the accompanying drawings, through some embodiments and their application scenarios, details the information indication method, apparatus, terminal, network - side device, and medium provided by the embodiments of the present application.

[0068] See Figure 2 , Figure 2 is a flowchart of an information indication method provided by an embodiment of the present invention for a terminal. As Figure 2 shown, the method includes the following steps:

[0069] Step 201, the terminal receives the first information sent by the network - side device.

[0070] Optionally, the first information is carried in at least one of semi - static signaling and dynamic signaling.

[0071] In the embodiments of the present application, the signaling for sending the above first information may be at least one of semi-static signaling or dynamic signaling. Among them, the semi-static signaling includes at least one of broadcast information, system information, and radio resource control (RRC) signaling; the dynamic signaling includes at least one of layer 1 (L1) signaling, such as a UE-specific physical downlink control channel (PDCCH), a group common PDCCH, a media access control control element (MAC CE), and a media access control protocol data unit (MAC PDU).

[0072] Optionally, when the first information is carried in semi-static signaling and dynamic signaling, the dynamic signaling is used to rewrite or update or supplement the semi-static signaling.

[0073] In the embodiments of the present application, the dynamic signaling may rewrite or update or supplement the indication information in the semi-static signaling. Rewriting may be to change the semi-static signaling configuration. For example, the semi-static signaling configurations are a and b, and the dynamic signaling is rewritten as c and d, and finally c and d are actually transmitted; updating may be to modify 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 to b, and finally b is actually transmitted; the above rewriting may also be understood as a form of updating, or updating may also be understood as a form of rewriting. Supplementing is to add a configuration based on the semi-static signaling configuration. For example, the semi-static signaling configurations are a and b, and the dynamic signaling supplements c and d, and finally a, b, c, and d are actually transmitted.

[0074] Exemplarily, the cell supports sending 8 SSBs, numbered SSB#0 to SSB#7;

[0075] The supplement may be: the semi-static signaling indicates that 4 of the 8 SSBs exist / sent in this cell, which are SSB#0, SSB#1, SSB#2, and SSB#3; then the dynamic signaling may further indicate the transmission of SSB#4, SSB#5, SSB#6, and SSB#7, and finally all 8 SSBs exist / sent in this cell;

[0076] The update may be that semi-static signaling indicates that these 8 SSBs may exist / are transmitted in this cell, and dynamic signaling may further indicate which of these 8 SSBs will exist / are transmitted or which SSBs will not exist / are not transmitted;

[0077] The rewrite may be that semi-static signaling indicates that 4 of these 8 SSBs exist / are transmitted in this cell, which are SSB#0, SSB#1, SSB#2, and SSB#3; dynamic signaling may indicate that SSB#1, SSB#4, SSB#5, SSB#6, and SSB#7 exist / are transmitted in this cell, and finally SSB#1, SSB#4, SSB#5, SSB#6, and SSB#7 exist / are transmitted in this cell.

[0078] Optionally, the dynamic signaling includes first dynamic signaling and second dynamic signaling, and the second dynamic signaling is used to rewrite or update or supplement the first dynamic signaling; wherein, the second dynamic signaling is dynamic signaling whose reception time is later than that of the first dynamic signaling.

[0079] In the embodiments of the present application, later dynamic signaling may rewrite, update or supplement earlier dynamic signaling. The explanations regarding rewriting, updating or supplementing may refer to the operations of dynamic signaling rewriting, updating or supplementing semi-static signaling. The change logics of the two are similar and will not be elaborated here. Regarding the determination of the transmission mode or resource utilization mode of SSB by the terminal based on the rewritten, updated or supplemented signaling, it will be described in subsequent embodiments.

[0080] In the embodiments of the present application, the relationships between multiple first information formats / contents: for example, dynamic signaling may rewrite semi-static signaling; subsequent first information may rewrite the content of previous first information.

[0081] Optionally, the control information carrying the first information includes at least one of the following:

[0082] Non-backoff downlink control information DCI;

[0083] Backoff DCI;

[0084] DCI for scheduling the first downlink transmission;

[0085] DCI for non-scheduling the first downlink transmission.

[0086] In the embodiments of the present application, the first information may be carried by downlink control information DCI (which may also be referred to as downlink control signaling), and DCI mainly includes scheduling information of uplink and downlink data channels and control information of one or a group of UEs.

[0087] Among them, the non-fallback downlink control information (non-fallback DCI) only schedules UE-specific first downlink transmissions (such as PDSCH).

[0088] The fallback DCI can schedule UE-specific first downlink transmissions (such as PDSCH), or can schedule a group of UEs, or can schedule cell system information (such as SIB1 or other SIBs (other SIBs), paging information, transmissions during the random access procedure).

[0089] The DCI that does not schedule the first downlink data, for example, the group common DCI.

[0090] The above different DCIs can be understood as DCIs in different formats. The difference between the Fallback DCI (for example, DCI 0_0 and DCI1_0 formats) and the Non-fallback DCI (for example, DCI 0_1 and DCI 1_1 formats) is that the Fallback DCI supports basic New Radio (NR) features for better PDCCH reception robustness; while the Non-fallback DCI is compatible with more NR features for flexibility.

[0091] In the embodiments of this application, optionally, according to the first information format and content, the first information is used to indicate which SSBs the terminal needs to consider when receiving the downlink transmission PDSCH, and can be applied in 5G, 6G or other future communication systems.

[0092] Optionally, the control information carrying the first information includes the fallback DCI, and the first downlink transmission includes the transmission of the system information block SIB1.

[0093] In the embodiments of this application, the PDSCH may include SIB1, and the first information may be carried in the fallback DCI. By receiving the above first information, the terminal can support the multiplexing of SIB1 PDSCH and SSB in at least one of the ways of Frequency Division Multiplexing (FDM) and Time Division Multiplexing (TDM).

[0094] 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.

[0095] In the embodiments of the present application, the above first information may introduce an information indication field (target indication field) in the above DCI (format), and the terminal determines at least one of whether the SSB is transmitted 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 according to the information carried in the information indication field.

[0096] Optionally, the above target indication field may adopt the form of a bitmap (b L-1 , …, b1, b0), using L bits, where L is less than or equal to the number of SSB indexes supported by a cell.

[0097] 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 transmitted or valid or available;

[0098] 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 a group of SSB indexes is transmitted or valid or available;

[0099] 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 SSB is transmitted or valid or available in the time slot where the first information is located;

[0100] 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 SSB is transmitted or 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;

[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 SSB is transmitted or valid or available in N time slots before the time slot where the first information is located, where N is a positive integer greater than or equal to 1.

[0102] Exemplarily, in the case where a cell supports 8 beams (beams) of SSB (SSB#0 to SSB#7) or 8 SSB indexes:

[0103] Method 1: When L is equal to the number of SSB indices supported by a cell, L = 8 bits, and 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 corresponding to the SSB index is invalid or unavailable or not sent, and a bit value of 1 indicates that the SSB corresponding to the SSB index is valid or available or sent;

[0104] 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, these 8 SSBs can be divided into 2 groups, with 4 SSBs in each group, and each bit corresponds to an indication of whether a group of SSBs exists / is sent;

[0105] Table 1

[0106] SSB group index SSB index included in the SSB group Corresponding bit Group 0 SSB#0, #1, #2, #3 <![CDATA[b0]]> Group 1 SSB#4, #5, #6, #7 <![CDATA[b1]]>

[0107] Method 3: When L is less than the number of SSB indices supported by a cell, these 8 SSBs are divided into 2 groups, and the number of SSBs in each group is not limited. As shown in Table 2, each code point corresponds to whether a group of SSBs is valid or available or sent, or invalid or unavailable or not sent.

[0108] Table 2

[0109] <![CDATA[(b1, b0),]]> Indicating the existing SSB index 0,0 All SSB indexes of this cell exist 0,1 SSB#4, #5, #6, #7 exist 1,0 SSB#0, #1, #2, #3 exist 1,1 All SSB indexes of this cell do not exist

[0110] Method 4: When L is less than the number of SSB indices supported by a cell. It indicates whether the SSB is sent or valid or exists in the current time unit or M time units after the current time unit, or in N time units before the time unit. When a time unit (e.g., a slot) can carry at most 2 SSB indices, it indicates whether the 2 SSBs in the corresponding time unit are sent or exist or are valid.

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

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

[0113] The non-backoff DCI, or backoff DCI, or DCI scheduling the first downlink transmission is used to indicate whether an SSB is transmitted, or whether the SSB is valid, or whether the SSB is available in the time unit where the first downlink transmission scheduled by the non-backoff DCI, or backoff DCI, or DCI scheduling the first downlink transmission is located.

[0114] In the embodiments of this application, for different DCI formats carrying the first information, the content and structure of the first information indication field may be different. Optionally, the DCI format carrying the first information is a DCI format that does not schedule the first downlink data. For example, group common DCI can indicate whether there is an SSB in one or more slots; the DCI format carrying the first information is a fallback DCI, or non-fallback DCI, or DCI format scheduling the first downlink transmission that schedules the downlink data, and it indicates whether there is an SSB in the time slot where the scheduled downlink data is located. Among them, the time unit (for example, time slot) where the DCI indicates the scheduled downlink data is located may be the same as or different from the time unit (for example, 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 transmitted, or is valid, or is available at the first time;

[0117] Whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission.

[0118] In the embodiments of this application, the SSB is not limited to the definition of the traditional SSB, and may also be any module including at least one of a synchronization signal, a broadcast signal, a broadcast channel (PBCH), and a downlink broadcast channel of other system messages.

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

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

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

[0122] Among them, the CD-SSB refers to the SSB associated with the Remaining Minimum System Information (RMSI), and the NCD-SSB is the SSB not associated with the RMSI.

[0123] In the embodiments 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 may directly indicate at least one of whether the SSB is transmitted 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. Through the specific content of the first information, the terminal can indirectly determine at least one of whether the synchronization signal block SSB is transmitted 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 transmitted 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 the embodiments of the present application, the first information may indicate or the first information enables the terminal to infer in which SSB candidate resources / positions the network-side device has transmitted the SSB.

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

[0127] In the embodiments of the present application, the above-mentioned first time may be a time unit indicated in the first information, or may 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] The time unit when the terminal receives the first information;

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

[0132] The SSB transmission period when the terminal receives the first information;

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

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

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

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

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

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

[0139] The transmission time of the SSB in the current SSB period where the first information is located;

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

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

[0142] Among them, the SSB transmission period and the SSB transmission time in the SSB period are configured by the higher layer.

[0143] In the embodiments of the present application, regarding whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission, where the above first downlink transmission can be understood as other downlink transmissions outside the SSB, such as PDSCH. Whether there is an overlap can also be understood as the multiplexing method of the SSB and the first downlink transmission. The above resources can be understood as at least one of time domain, frequency domain, and spatial domain (e.g., beam) resources. The overlap of the above resources can be understood as at least partial overlap of the 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 resources of the SSB transmission and the time resources of the first downlink transmission overlap;

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

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

[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 cases:

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

[0150] The time interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to the conversion 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] Or, 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 cases:

[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 conversion 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 guard frequency domain interval.

[0156] In the embodiments of the present application, for the overlap of the above resources, in addition to considering the overlap of the actually transmitted physical resources, the interval between receiving the first downlink transmission and receiving the SSB in the time domain or frequency domain can also be considered. That is to say, the above overlapping resources include the overlap of the actually transmitted physical resources, and can also include that the time interval between receiving the first downlink transmission and receiving the SSB is less than or equal to the conversion time, or the frequency domain interval between receiving the first downlink transmission and receiving the SSB is less than or equal to the guard frequency domain interval, at least one of which. 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 guard frequency domain interval, whether it specifically belongs to the overlapping situation can be determined according to protocol agreements, preset rules, or relevant configuration information.

[0158] Exemplarily, Figure 3 Examples are given for two different overlapping situations (with actual physical resource overlap and without actual physical resource overlap).

[0159] For 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 conversion time or the guard frequency domain interval between the first downlink transmission and receiving the SSB, and the above conversion time or guard frequency domain interval needs to be considered during the resource overlap process.

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

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

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

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

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

[0165] Optionally, the terminal determines whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission based on the first information, including:

[0166] When the sub - carrier spacing (SCS) used by the terminal for the SSB is different from the second SCS used for the first downlink transmission, based on the first information, the terminal converts the first resource according to the second SCS to obtain a third resource occupied by the SSB based on 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] Among them, 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 (RBs) or a positive integer number of resource elements (REs) or a positive integer number of sub - carriers in the frequency domain.

[0169] In the embodiments of the present application, when the sub - carrier spacing (SCS) used for the SSB is different from that used for the first downlink transmission, the resources occupied by the above - mentioned SSB need to be converted according to the SCS (second SCS) used for the first downlink transmission, so that the time - domain and frequency - domain resources occupied by the SSB after conversion based on the SCS are positive integer numbers 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 (RBs) or a positive integer number of resource elements (REs) or a positive integer number of sub - carriers in the frequency domain. When the time - domain and frequency - domain units after conversion are not integers, rounding up is required.

[0170] Exemplarily, as Figure 4 shown, assuming that the SSB SCS = 30KHz and the first downlink transmission PDSCH SCS = 15KHz, the time - domain and frequency - domain resources occupied by the SSB need to be converted according to the SCS (15KHz) of the first downlink transmission PDSCH and the start symbol and end symbol of the PDSCH transmission, so that the SSB occupies positive integer numbers of time - domain or frequency - domain resource units of the PDSCH; that is, as Figure 4 shown, the start symbol and end symbol of SSB v0 occupy half of an OFDM symbol of the PDSCH, and the other half of the OFDM symbol that forms an OFDM symbol with this half - OFDM symbol is also regarded as the resource (third resource) occupied by SSB v0. In the case where there is a resource overlap between this other half - OFDM symbol and the first downlink transmission, the above - mentioned other half - OFDM symbol( Figure 4 the white rectangles on both sides of SSB v0 in) is not used to transmit the above - mentioned first downlink transmission or receive the above - mentioned first downlink transmission through rate matching or receive the above - mentioned first downlink transmission through puncturing.

[0171] Optionally, 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 method further includes at least one of the following:

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

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

[0174] The terminal receives the first downlink transmission by puncturing the 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 the 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 the frequency domain resources where the time domain resources in the overlapping resources are located.

[0178] In the embodiments of the present application, when the terminal determines that there are overlapping resources between the resources occupied by the first downlink transmission and the resources occupied by the SSB, the behavior of the terminal may be at least one of the following:

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

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

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

[0182] The terminal considers that all the frequency domain resources where the time domain resources in the above-mentioned 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 the frequency domain resources where the overlapping time domain resources are located.

[0183] In the embodiments of the present application, the frequency domain resources corresponding to the time domain resources in the overlapping resources can be understood as including, in addition to the actually overlapping frequency domain resources, other frequency domain resources corresponding to the overlapping time domain resources. Exemplarily, as Figure 5 shown, the actually overlapping frequency domain resources may be the positions where SSB v0 is located, and the frequency domain resources corresponding to the time domain resources in the overlapping resources may be all the frequency domain resources where the time domain resource symbol index of the overlapping resources is 2 - 5.

[0184] Optionally, the first downlink transmission is a 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), multicast PDSCH (MBS Multicast PDSCH).

[0185] When the first information can be indicated by semi-static and dynamic signaling, for user-specific data, the Physical Downlink Shared Channel (PDSCH) configured semi-persistently (Semi-Persistent Scheduling, SPS), i.e., SPS PDSCH. The transmission mode of the SPS PDSCH can be as follows:

[0186] Mode 1: For the first SPS PDSCH scheduled by Dynamic Control Indication (DCI), rate matching (RM) or puncturing is performed according to the first information indicated by the DCI, and for other SPS PDSCHs, rate matching or puncturing is performed according to the first information indicated by the semi-static signaling;

[0187] Mode 2: All SPS PDSCHs perform rate matching or puncturing according to the first information indicated by the DCI;

[0188] Mode 3: All SPS PDSCHs perform rate matching or puncturing according to the first information indicated by the semi-static signaling.

[0189] For ease of understanding, embodiments in which the terminal determines the use of overlapping resources according to the first information, and the second dynamic signaling is used to rewrite or update or supplement the first dynamic signaling, etc., are 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 transmission situation of the Synchronization Signal Block (SSB) in the resources where the PDSCH scheduled by the downlink control signaling is located. For example, the DCI in slot #0 schedules the transmission of SSB v0 or the non-transmission of SSB v1 (dotted box in the figure) in slot #0, that is, only rate matching for SSB v0 to receive the PDSCH is required, and no rate matching for SSB v1 is required; the DCI in slot #1 schedules the transmission of SSB v2 and SSB v3 in slot #1, that is, rate matching for SSB v2 and SSB v3 to receive the PDSCH is required; or rather, SSB v0, SSB v2, and SSB v3 are not used for the transmission of the PDSCH, and SSB v1 is used for the transmission of the PDSCH.

[0191] Example 2: As shown in Figure 7As shown, the first information is carried in the downlink control signaling, indicating the SSB transmission situation in the resources where the PDSCH scheduled by the downlink control signaling is located. For example, if the DCI in slot #0 schedules the transmission of SSB v0 and SSB v1 in slot #0, then rate matching or puncturing is required for SSB v0 and SSB v1 to receive the PDSCH, or SSB v0 and SSB v1 are not used for the transmission of the PDSCH. Among them, it should be noted that SSB v1 is indicated to be transmitted, but the actual network-side device does not transmit it (the dotted box filled with cross lines), and rate matching for SSB v1 is required.

[0192] Example 3: As Figure 8 As shown, the first information is carried in the downlink control signaling, indicating the SSB transmission situation in the resources of the time unit where the terminal receives the first information and the first time unit after the time unit where the terminal receives the first information. For example, the first information is carried in the downlink control signaling, indicating the transmission of SSB v0 and SSB v2 or the non-transmission of SSB v1 and SSB v3 in slot #0 and Slot #1. When the terminal receives the PDSCH in slot #1, only rate matching for SSB v2 is required. Among them, the PDSCH in slot #1 can be:

[0193] The PDSCH cross-slot scheduled by the downlink control signaling carrying the first information in slot #0; or

[0194] The second repetition 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] The SPS PDSCH in Slot #1, that is, the downlink transmission configured by RRC.

[0196] Example 4: Figure 9An example of a scheme where 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 there is a transmission of SSB v0 and SSB v2 in slot#0 and Slot#1, or there is no transmission of SSB v1 and SSB v3. The DCI in slot#1 indicates that there is a transmission of SSB v0, SSB v2, and SSB v3 in slot#0 and Slot#1, or there is no transmission of SSB v1. That is, the indication of whether SSB v3 is transmitted is rewritten (updated) in the DCI in slot#1. When the terminal receives the 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] Previously, the first information in slot n indicates that a certain SSB is not transmitted in the subsequent slot n+k, and the subsequent first signaling in slot n+j indicates that the SSB is transmitted in the subsequent slot n+k. Both k and j are greater than 0, and k >= j

[0198] Previously, the first information in slot n indicates that a certain SSB is transmitted in the subsequent slot n+k, and the subsequent first signaling in slot n+j indicates that the SSB is not transmitted in the subsequent slot n+k. Both k and j are greater than 0, and k >= j.

[0199] Example 5 Figure 10 An example is given where it is not allowed to update the previous (earlier first information) indication or indicate conflicting content by the subsequent (later first information). When a conflict occurs, the terminal can consider that the behavior of the network-side device is incorrect. The definition of conflicting content includes at least one of the following:

[0200] Previously, the first information indicates that a certain SSB is transmitted, and the subsequent first signaling indicates that the SSB is not transmitted;

[0201] Previously, the first information indicates that a certain SSB is not transmitted, and the subsequent first signaling indicates that the SSB is transmitted;

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

[0203] Previously, the first information in slot n indicates that a certain SSB is transmitted in the subsequent slot n+k, and the subsequent first signaling in slot n+j indicates that the SSB is not transmitted in slot n+k. Both k and j are greater than 0, and k <= j.

[0204] It should 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 there is an overlap between the fourth resource occupied by the demodulation reference signal of the first downlink transmission and 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 embodiments of this application, when the terminal determines that the resources occupied by the reference signal used to demodulate the first downlink transmission and the resources occupied by the SSB overlap, the behavior of the terminal is at least one of the following:

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

[0213] The terminal considers it a network mis-scheduling, does not define the behavior of the terminal, or the behavior of the terminal depends on the implementation of the terminal;

[0214] The terminal demodulates the first downlink transmission using a reference signal that does not have resource overlap with the SSB, that is, demodulates the first downlink transmission using the part of the demodulation reference signal of the first downlink transmission that does not overlap with the SSB resources.

[0215] Optionally, the overlap between the fourth resource occupied by the demodulation reference signal of the first downlink transmission and the first resource occupied by the SSB includes at least one of the following situations:

[0216] The physical resources transmitted by the demodulation reference signal of the first downlink transmission and the physical resources transmitted by the SSB overlap;

[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 conversion 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 guard frequency-domain interval.

[0219] In the embodiments of the present application, for the meaning of the overlap between the fourth resource and the first resource, reference may be made to the description of the overlap between the first resource and the second resource above, which will not be elaborated here.

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

[0221] Determine whether the SSB is sent or valid or available at the first time according to the second time;

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

[0223] The time when the listen-before-talk (LBT) of the network-side device is successful;

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

[0225] The remaining channel occupancy time when the LBT of the network-side device is successful.

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

[0227] Optionally, the above first information may further include the absolute time when the listen-before-talk (LBT) of the network-side device is successful or the relative time from the current reception of the first information and / or the remaining channel occupancy time. Based on the time when the LBT is successful, the terminal can calculate which candidate SSB resources / positions have sent SSB and which candidate SSB resources / positions have not sent SSB. Or rather, for the unlicensed frequency band, the network-side device indicates through the first information in which candidate positions of the SSB the SSB is transmitted.

[0228] Exemplarily, Figure 11Illustrates a technical solution for determining whether an SSB is transmitted, valid, or available at a first time according to the second time; for example, in a non - licensed spectrum network where 4 SSBs, SSB v0, v1, v2, v3 are transmitted and the network is configured with 10 SSB candidate positions, assuming that the first information from the network - side device indicates that the slot when LBT is successful is slot#1 and there are 3 slots remaining for the remaining channel occupancy time starting from slot#2, the terminal can deduce that SSB v2 and SSB v3 are transmitted on the SSB candidate resources c2 and c3 in slot#1; SSB v0 and SSB v1 are transmitted on the SSB candidate resources c4 and c5 in slot#2, and these 4 SSBs have been transmitted. Therefore, the network does not transmit 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, in the case where the terminal does not receive the first information, perform any one of the following according to the second information:

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

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

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

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

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

[0235] The radio network temporary identifier RNTI of the physical downlink control channel PDCCH that scrambles and schedules the PDSCH;

[0236] The search space type where the PDCCH that schedules the PDSCH is located.

[0237] In the embodiments of the present application, when the terminal does not receive the above - mentioned first information, the behavior of the terminal includes at least one of the following:

[0238] Method 1: Consider all candidate SSB resources / positions, that is, the terminal considers that the SSBs on all SSB candidate resources / positions are transmitted, 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 resources / positions of SSBs are not transmitted or invalid or unavailable.

[0240] Specifically, whether to adopt the above Mode 1 or Mode 2 can be determined by network configuration; or determined by the DCI format for scheduling PDSCH; or determined by the RNTI of the PDCCH that scrambles the PDSCH for scheduling; or determined by the search space type where the PDCCH for scheduling PDSCH is located, or determined by protocol convention.

[0241] For example, the network configures the terminal's behavior to be Mode 1 or Mode 2 as described above;

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

[0243] For the PDSCH scheduled by the PDCCH scrambled by Cell-RadioNetworkTemporaryIdentifier (C-RNTI), Configured Scheduling RNTI (CS-RNTI), Group Configured Scheduling RNTI (G-CS-RNTI), Modulcation Coding Scheme Cell RNTI (MCS-C-RNTI), the terminal behavior is Mode 1 or Mode 2; for the PDSCH scheduled by the PDCCH scrambled by System InformationRNTI (SI-RNTI), Paging RNTI (P-RNTI), Random Access RNTI (RA-RNTI), Temporary Cell RNTI (TC-RNTI), Group RNTI (G-RNTI), Multicast Control Channel RNTI (MCCH-RNTI), the terminal behavior is Mode 2 or Mode 1;

[0244] For the PDSCH scheduled by the Type 0 / 0A / 1 / 2 / 2B common search space, the terminal behavior is Mode 1 or Mode 2; for the PDSCH scheduled by the Type 3 common search space and the UE-specific search space, the terminal behavior is Mode 2 or Mode 1.

[0245] Optionally, the SSB includes at least one of the following: the actually transmitted SSB, the candidate positions of the SSB, and the candidate resources of the SSB.

[0246] In the embodiments of the present application, the terminal receives the first information sent by the network-side device; based on the first information, the terminal determines at least one of the following information: whether the synchronization signal block SSB is transmitted or 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. By transmitting the first information, the terminal can clearly know the transmission situation of the SSB, which is beneficial to improving the utilization rate of transmission resources in the communication system.

[0247] See Figure 12 , Figure 12 is a flowchart of another information indication method provided by the embodiments of the present invention, for a network-side device, such as Figure 12 shown, the method includes the following steps:

[0248] Step 1201, the network-side device sends the 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 transmitted or 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] the 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] the SSB transmission period in which the terminal receives the first information;

[0257] The terminal receives the Xth SSB transmission period after the SSB transmission period in which the first information is located, 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 cases:

[0260] The physical resources for SSB transmission overlap with the physical resources for 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 conversion 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 protection frequency domain interval;

[0263] Or, 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 cases:

[0264] The physical resources for SSB transmission do not overlap with the physical resources for the first downlink transmission;

[0265] The time interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to the conversion 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 for SSB transmission overlap with the physical resources for the first downlink transmission, including at least one of the following:

[0268] The time resources for SSB transmission overlap with the time resources for the first downlink transmission;

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

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

[0271] Optionally, the first information is carried on 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 or update or supplement the semi-static signaling.

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

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

[0275] Non-backoff downlink control information DCI;

[0276] Backoff DCI;

[0277] DCI for scheduling the first downlink transmission;

[0278] DCI for non-scheduling 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 transmitted or is valid or is 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 a group of SSB indexes is transmitted or is valid or is 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 an SSB is transmitted or is valid or is available in the time slot where the first information is located;

[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 an SSB is transmitted or is valid or is available in M time slots after the time slot where the first information is located, and 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 an SSB is transmitted or is valid or is available in N time slots before the time slot where the first information is located, and N is a positive integer greater than or equal to 1.

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

[0286] The non-backoff DCI or the backoff DCI or the DCI for scheduling the first downlink transmission is used to indicate whether an SSB is transmitted or whether the SSB is valid or available in the time unit where the first downlink transmission scheduled by the non-backoff DCI or the backoff DCI or the DCI for scheduling the first downlink transmission is located.

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

[0288] Optionally, the SSB includes at least one of the following: the actually transmitted SSB, the candidate location of the SSB, and the candidate resource of the SSB;

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

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

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

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

[0293] The time when the listen-before-talk LBT of the network-side device is successful;

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

[0295] The remaining time of channel occupancy when the LBT of the network-side device is successful.

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

[0297] The information indication method provided by the embodiments of this application is such that 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 a synchronization signal block (SSB) is sent or is valid or is available at a first time; 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 clarify the transmission situation of the SSB, which can help improve the utilization rate of transmission resources in a communication system.

[0298] The information indication method provided by the embodiments of this application may have an information indication device as the execution entity. In the embodiments of this application, the example of an information indication device executing the information indication method is used. As Figure 13 shown, the information indication device provided by the embodiments of this application is described. The information indication device 1300 includes:

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

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

[0301] whether a synchronization signal block (SSB) is sent or is valid or is available at a first time;

[0302] whether a first resource occupied by the SSB overlaps with a second resource occupied by a 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] the SSB transmission 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 Yth SSB transmission period before the SSB transmission period in which the terminal receives the first information, 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 cases:

[0311] The physical resources for transmitting the SSB overlap with the physical resources for 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 conversion 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 cases:

[0315] The physical resources for transmitting the SSB do not overlap with the physical resources for the first downlink transmission;

[0316] The time interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to the conversion 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 guard frequency domain interval.

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

[0319] The time resources for transmitting the SSB overlap with the time resources for the first downlink transmission;

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

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

[0322] Optionally, the determining module 1302 includes:

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

[0324] A first determination sub-module, configured to determine whether the third resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission;

[0325] Among them, 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 (RBs), or a positive integer number of Resource Elements (REs), or a positive integer number of sub - carriers in the frequency domain.

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

[0327] The first execution module is 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 the overlapping resources for the first downlink transmission;

[0328] The second execution module is 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, receive the first downlink transmission by rate - matching the overlapping resources;

[0329] The third execution module is 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, receive the first downlink transmission by puncturing the overlapping resources;

[0330] The fourth execution module is 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 the frequency - domain resources corresponding to the time - domain resources in the overlapping resources for the first downlink transmission;

[0331] The fifth execution module is 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, receive the first downlink transmission by rate - matching all the frequency - domain resources where the time - domain resources in the overlapping resources are located;

[0332] The sixth execution module is 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, receive the first downlink transmission by puncturing all the frequency - domain resources where the time - domain resources in the overlapping resources are located.

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

[0334] The seventh execution module is configured to, when the fourth resources occupied by the demodulation reference signal of the first downlink transmission overlap with the first resources occupied by the SSB, abandon receiving the first downlink transmission;

[0335] The eighth execution module is configured to, when the fourth resources occupied by the demodulation reference signal of the first downlink transmission overlap with the first resources occupied by the SSB, skip receiving the first downlink transmission;

[0336] A ninth execution module, configured to, when there is an overlap between a fourth resource occupied by a demodulation reference signal of the first downlink transmission and a first resource occupied by the SSB, the terminal confirm that it does not need to receive the first downlink transmission;

[0337] A tenth execution module, configured to, when there is an overlap between a fourth resource occupied by a demodulation reference signal of the first downlink transmission and a first resource occupied by the SSB, confirm a network scheduling error;

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

[0339] Optionally, there is an overlap between a fourth resource occupied by a demodulation reference signal of the first downlink transmission and a first resource occupied by the SSB, including at least one of the following situations:

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

[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 a conversion 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 a 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 or update or supplement the semi-static signaling.

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

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

[0347] Non-backoff downlink control information DCI;

[0348] Backoff DCI;

[0349] DCI for scheduling the first downlink transmission;

[0350] DCI for non-scheduled 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 transmitted or 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 transmitted or 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 an SSB is transmitted or valid or available in the time slot where the first information is located;

[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 an SSB is transmitted or valid or available in M time slots after the time slot where the first information is located, and 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 an SSB is transmitted or valid or available in N time slots before the time slot where the first information is located, and N is a positive integer greater than or equal to 1.

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

[0358] The non-backoff DCI or backoff DCI or DCI for scheduled first downlink transmission is used to indicate whether an SSB is transmitted or valid or available in the time unit where the first downlink transmission scheduled by the non-backoff DCI or backoff DCI or DCI for scheduled first downlink transmission is located.

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

[0360] Optionally, the SSB includes at least one of the following: the actually transmitted SSB, the candidate positions of the SSB, and the candidate resources of the SSB;

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

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

[0363] Optionally, the determining module 1302 includes:

[0364] A second determining sub-module, configured to determine whether the SSB is transmitted or valid or available at a first time according to the second time when in an unlicensed frequency band and the first information includes the second time;

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

[0366] The time when the listen-before-talk LBT of the network-side device is successful;

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

[0368] The remaining channel occupancy time when the LBT of the network-side device is successful.

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

[0370] A twelfth execution module, configured to, when the terminal does not receive the first information, regard all candidate resources of the SSB or the SSB at all candidate positions of the SSB as transmitted or valid or available;

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

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

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

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

[0375] Radio network temporary identifier RNTI for scrambling the physical downlink control channel PDCCH that schedules the PDSCH;

[0376] Search space type where the PDCCH that schedules the PDSCH is located.

[0377] The information indication device provided by the embodiments of the present application can implement Figures 2 to 11 each process implemented by the method embodiments of

[0378] Figure 14 and achieve the same technical effects. To avoid repetition, they will not be elaborated here. The information indication method provided by the embodiments of the present application may have an information indication device as the execution subject. In the embodiments of the present application, taking the information indication device as an example to execute the information indication method, as

[0379] shown, the information indication device 1400 is described. The information indication device 1400 includes:

[0380] A sending module 1401, configured to send a first piece of information to a terminal;

[0381] The first piece of information is used to determine at least one of the following information:

[0382] Whether the synchronization signal block SSB is sent or valid or available at a first time;

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

[0384] The time unit in which the terminal receives the first piece of information;

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

[0387] The SSB transmission period in which the terminal receives the first piece of information;

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

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

[0390] Optionally, the overlap between the first resource occupied by the SSB and the second resource occupied by the first downlink transmission includes at least one of the following situations:

[0391] The physical resources for SSB transmission and the physical resources for the first downlink transmission overlap;

[0392] The time interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to the conversion 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] Or, 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 cases:

[0395] The physical resources for transmitting the SSB do not overlap with the physical resources for the first downlink transmission;

[0396] The time interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to the conversion 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 guard frequency-domain interval.

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

[0399] The time resources for transmitting the SSB overlap with the time resources for the first downlink transmission;

[0400] The frequency-domain resources for transmitting the SSB overlap with the frequency-domain resources for the first downlink transmission;

[0401] The spatial resources for transmitting the SSB overlap with the spatial resources for 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 or update or supplement the semi-static signaling.

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

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

[0406] Non-backoff downlink control information DCI;

[0407] Backoff DCI;

[0408] DCI for scheduling the first downlink transmission;

[0409] DCI for non - scheduling 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 transmitted or 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 transmitted or 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 an SSB is transmitted or valid or available in the time slot where the first information is located;

[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 an SSB is transmitted or valid or available in M time slots after the time slot where the first information is located, and 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 an SSB is transmitted or valid or available in N time slots before the time slot where the first information is located, and N is a positive integer greater than or equal to 1.

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

[0417] The non - fallback DCI or fallback DCI or DCI for scheduling the first downlink transmission is used to indicate whether an SSB is transmitted or valid or available in the time unit where the first downlink transmission scheduled by the non - fallback DCI or fallback DCI or DCI for scheduling the first downlink transmission is located.

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

[0419] Optionally, the SSB includes at least one of the following: the actually transmitted SSB, the candidate positions of the SSB, and the candidate resources of the SSB;

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

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

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

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

[0424] the time when the listen-before-talk LBT of the network-side device is successful;

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

[0426] the remaining time of channel occupancy when the listen-before-talk LBT of the network-side device is successful.

[0427] The information indication device provided in the embodiments of the present application can implement Figure 12 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, details are not described here again.

[0428] The information indication device 1300 or the information indication device 1400 in the embodiments of the present application may 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 a chip. The electronic device may be a terminal or other devices other than a terminal. Exemplarily, the terminal may include, but is not limited to, the types of the terminal 11 listed above, and other devices may be a server, a network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0429] As Figure 15 shown, the embodiments of the present application further provide a communication device 1500, including a processor 1501 and a memory 1502. A program or instruction that can run on the processor 1501 is stored on the memory 1502. For example, when the communication device 1500 is a terminal, when the program or instruction is executed by the processor 1501, it implements each step of the information indication method embodiment shown above Figure 2 and can achieve the same technical effects. When the communication device 1500 is a network-side device, when the program or instruction is executed by the processor 1501, it implements the aboveFigure 12 The steps of the method embodiment shown in the figure indicate the steps of the method embodiment, and can achieve the same technical effects. To avoid repetition, they will not be elaborated here.

[0430] The embodiment of the present application further provides a terminal, including a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the steps in the method embodiment as shown in Figure 2 the figure. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment. All implementation processes and implementation manners of the above method embodiment can be applied to this terminal embodiment, and can achieve the same technical effects. Specifically, Figure 16 FIG. is a schematic hardware structure diagram of a terminal according to an embodiment of the present application.

[0431] The terminal 1600 includes, but is not limited to, at least some components such as 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 a processor 1610.

[0432] Those skilled in the art can understand that the terminal 1600 may further include a power source (such as a battery) for supplying power to each component. The power source can be logically connected to the processor 1610 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 16 The terminal structure shown in the figure does not limit the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0433] It should be understood that in the embodiment of the present application, the input unit 1604 may include a graphics processing unit (GPU) 16041 and a microphone 16042. The graphics processor 16041 processes the image data of static pictures or videos 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 at least one of a touch panel 16071 and 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 elaborated here.

[0434] In an embodiment of the present application, after the radio frequency unit 1601 receives downlink data from a network-side device, it can transmit the data to the processor 1610 for processing. Additionally, the radio frequency unit 1601 can send uplink data to the network-side device. Generally, the radio frequency unit 1601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0435] The memory 1609 can be used to store software programs or instructions and various data. The memory 1609 mainly includes a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area can 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, the memory 1609 can include volatile memory or non-volatile memory. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), a static RAM (SRAM), a dynamic RAM (DRAM), a synchronous DRAM (SDRAM), a double data rate SDRAM (DDR SDRAM), an enhanced SDRAM (ESDRAM), a synch link DRAM (SLDRAM), and a direct rambus RAM (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] The processor 1610 can include one or more processing units. Optionally, the processor 1610 integrates an application processor and a modulation and demodulation processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and applications, etc., and the modulation and demodulation processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modulation and demodulation processor may not be integrated into the processor 1610.

[0437] Among them, the radio frequency unit 1601 is used to receive the first information sent by the network-side device;

[0438] A processor 1610, 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 a first time;

[0440] Whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission.

[0441] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment may refer to the method embodiment Figures 2 - 11 for related descriptions and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0442] This embodiment of the present application further provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run a program or instruction to implement the steps of the method embodiment as Figure 12 shown. This embodiment of the network-side device corresponds to the above-mentioned method embodiment of the network-side device. Each implementation process and implementation manner of the above method embodiment can be applied to this embodiment of the network-side device and can achieve the same technical effect.

[0443] Specifically, this embodiment of the present application further provides a network-side device. As Figure 17 shown, the network-side device 1700 includes: an antenna 171, a radio frequency device 172, a baseband device 173, a processor 174, and a memory 175. The antenna 171 is connected to the radio frequency device 172. In the uplink direction, the radio frequency device 172 receives information through the antenna 171 and sends the received information to the baseband device 173 for processing. In the downlink direction, the baseband device 173 processes the information to be sent and sends it to the radio frequency device 172. The radio frequency device 172 processes the received information and then sends it out through the antenna 171.

[0444] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 173, and the baseband device 173 includes a baseband processor.

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

[0446] The network-side device may further include a network interface 176, such as a Common Public Radio Interface (CPRI).

[0447] Specifically, the network-side device 1700 according to the embodiment of the present application further includes instructions or programs stored in the memory 175 and executable on the processor 174. The processor 174 calls the instructions or programs in the memory 175 to execute Figure 12 the methods executed by the modules shown, and achieves the same technical effects. To avoid repetition, they will not be elaborated here.

[0448] The embodiment of the present application further provides a readable storage medium, on which a program or instructions are stored. When the program or instructions are executed by a processor, the Figure 2 processes of the information indication method embodiment shown above are implemented, or when the program or instructions are executed by a processor, the Figure 12 processes of the information indication method embodiment shown above are implemented, and the same technical effects can be achieved. To avoid repetition, they will not be elaborated here.

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

[0450] The embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the Figure 2 processes of the information indication method embodiment shown in or 12 above, and the same technical effects can be achieved. To avoid repetition, they will not be elaborated here.

[0451] It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip.

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

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

[0454] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the presence or availability of another identical element in the process, method, article or device including that 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 a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, 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-described embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, they can also be implemented by hardware. This computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disc, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0456] The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Those of ordinary skill in the art, under the inspiration of the present application and without departing from the spirit and scope protected by the claims of the present application, can also make many forms of embodiments, and these embodiments are all within the protection scope of the present application.

Claims

1. An information indication method, characterized in that including: The terminal receives first information sent by a network - side device; Based on the first information, the terminal determines at least one of the following information: Whether the synchronization signal block (SSB) is sent, valid, or available at a first time; Whether the first resource occupied by the SSB overlaps with the second resource occupied by a first downlink transmission.

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

3. The method according to claim 1, wherein The overlap between the first resource occupied by the SSB and the second resource occupied by the first downlink transmission includes at least one of the following cases: The physical resources of the SSB transmission and the physical resources of the first downlink transmission overlap; The time interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to a conversion time; The frequency - domain interval between the terminal receiving the SSB and receiving the first downlink transmission is less than or equal to a protection frequency - domain interval; Or, the non - overlap between the first resource occupied by the SSB and the second resource occupied by the first downlink transmission includes at least one of the following cases: 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 a conversion time; The frequency - domain interval between the terminal receiving the SSB and receiving the first downlink transmission is greater than or equal to a protection frequency - domain interval.

4. The method according to any one of claims 1 to 3, characterized in that The overlap between the physical resources of the SSB transmission and the physical resources of the first downlink transmission includes at least one of the following: The time resources of the SSB transmission and the time resources of the first downlink transmission overlap; The frequency - domain resources of the SSB transmission and the frequency - domain resources of the first downlink transmission overlap; The spatial resources of the SSB transmission and the spatial resources of the first downlink transmission overlap.

5. The method according to any one of claims 1-4, characterized in that, Based on the first information, the terminal determines whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission, including: When the first sub - carrier spacing (SCS) used by the SSB is different from the second SCS used by the first downlink transmission, based on the first information, the terminal converts the first resource according to the second SCS to obtain a third resource occupied by the SSB based on 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; Wherein, 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 (RBs), or a positive integer number of Resource Elements (REs), or a positive integer number of subcarriers in the frequency domain.

6. The method according to any one of claims 1-5, characterized in that, 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 method further includes at least one of the following: The terminal does not use the overlapping resources for the first downlink transmission; The terminal receives the first downlink transmission by rate matching the overlapping resources; The terminal receives the first downlink transmission by puncturing the 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 the frequency domain resources where the time domain resources in the overlapping resources are located; The terminal receives the first downlink transmission by puncturing all the 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, characterized in that, The method further includes: When the fourth resources occupied by the demodulation reference signal of the first downlink transmission overlap with the first resources 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 the demodulation reference signal that does not overlap with the first resources.

8. The method according to claim 7, wherein The situation where the fourth resources occupied by the demodulation reference signal of the first downlink transmission overlap with the first resources occupied by the SSB includes at least one of the following cases: The physical resources for transmitting the demodulation reference signal of the first downlink transmission and the physical resources for transmitting the SSB overlap; 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 guard frequency domain interval.

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

10. The method according to claim 9, characterized in that, 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.

11. The method according to claim 9 or 10, characterized in that, The dynamic signaling includes first dynamic signaling and 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 the dynamic signaling received later than the first dynamic signaling.

12. The method according to any one of claims 9-11, characterized in that, The control information carrying the first information includes at least one of the following: Non-backoff Downlink Control Information (DCI); Backoff DCI; DCI for scheduling the first downlink transmission; DCI for not scheduling the first downlink transmission.

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

14. The method according to claim 13, wherein 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 transmitted or valid or available; Alternatively, 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 a group of SSB indexes is transmitted or valid or available; Alternatively, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether an SSB is transmitted or valid or available in the time slot where the first information is located; Alternatively, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether an SSB is transmitted or 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; Alternatively, when L is less than the number of SSB indexes supported by a cell, the target indication field is used to indicate whether an SSB is transmitted or valid or available in N time slots before the time slot where the first information is located, where N is a positive integer greater than or equal to 1.

15. The method according to any one of claims 12-14, wherein the DCI for the non-scheduled first downlink transmission is used to indicate whether an SSB is transmitted or valid or available in one or more time units; the non-backoff DCI or the backoff DCI or the DCI for the scheduled first downlink transmission is used to indicate whether an SSB is transmitted or valid or available in the time unit where the first downlink transmission scheduled by the non-backoff DCI or the backoff DCI or the DCI for the scheduled first downlink transmission is located.

16. The method according to any one of claims 12 - 15, characterized in that, The control information carrying the first information includes a backoff DCI, and the first downlink transmission includes the transmission of the system information block SIB1.

17. The method according to any one of claims 1 to 16, characterized in that, The SSB includes at least one of the following: the actually transmitted SSB, the candidate positions of the SSB, the candidate resources of the SSB; or, the SSB includes at least one of the following: the cell-defined SSB, the non-cell-defined SSB, the low-power synchronization signal LP-SS, the low-power wake-up signal LP-WUS, the control signaling for scheduling the system information block SIB1, and the control resource set associated with the control signaling for scheduling the system information block SIB1 indicated by the SSB.

18. The method according to any one of claims 1-17, characterized in that, In the unlicensed frequency band and when the first information includes the second time; The terminal determines whether a synchronization signal block SSB is transmitted or valid or available at the first time based on the first information, including: Determining whether the SSB is transmitted or valid or available at the first time according to the second time; wherein the second time includes at least one of the following: the time when the network-side device's listen-before-talk LBT is successful; the relative time between the network-side device's LBT success and the reception of the first information; the remaining time of the channel occupancy when the network-side device's LBT is successful.

19. The method according to any one of claims 1-18, characterized in that, In the case that the terminal does not receive the first information, perform any one of the following according to the second information: The terminal regards all candidate resources of all SSBs or the SSBs at all candidate positions of all SSBs as being transmitted or valid or available; The terminal regards all candidate resources of all SSBs or the SSBs at all candidate positions of all SSBs as not being transmitted or invalid or unavailable; Wherein, the second information includes at least one of the following: The second information sent by the network side device; The DCI format for scheduling the physical downlink shared channel PDSCH; The radio network temporary identifier RNTI that scrambles the physical downlink control channel PDCCH for scheduling the PDSCH; The search space type where the PDCCH for scheduling the PDSCH is located.

20. An information indication method, characterized in that, Including: The network side device sends the 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 transmitted or valid or available at the first time; Whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission.

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

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

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

24. The method according to any one of claims 20-23, characterized in that The control information carrying the first information includes at least one of the following: Non-backoff downlink control information DCI; Backoff DCI; The DCI for scheduling the first downlink transmission; The DCI for not scheduling the first downlink transmission.

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

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

27. The method according to any one of claims 24-26, wherein The DCI for the non-scheduled first downlink transmission is used to indicate whether an SSB is transmitted or whether the SSB is valid or available in one or more time units; The non-backoff DCI or the backoff DCI or the DCI for scheduling the first downlink transmission is used to indicate whether an SSB is transmitted or whether the SSB is valid or available in the time unit where the first downlink transmission scheduled by the non-backoff DCI or the backoff DCI or the DCI for scheduling the first downlink transmission is located.

28. The method according to any one of claims 24-27, characterized in that, The control information carrying the first information includes a backoff DCI, and the first downlink transmission includes the transmission of the system information block SIB1.

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

30. The method according to any one of claims 20 - 29, characterized in that, In the unlicensed frequency band, the first information includes a second time; wherein, the second time includes at least one of the following: the time when the network-side device's listen-before-talk LBT is successful; the relative time between the network-side device's LBT success and the reception of the first information; the remaining time of the channel occupancy when the network-side device's LBT is successful.

31. An information indicating device, characterized in that, including: a receiving module, configured to receive the first information sent by a network-side device; a determining module, configured to determine at least one of the following information based on the first information: whether the synchronization signal block SSB is transmitted or is valid or is available at a first time; whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission.

32. The device according to claim 31, wherein The determining module includes: a conversion module, configured to, when the first subcarrier spacing SCS used by the SSB is different from the second SCS used by the first downlink transmission, convert the first resource based on the first information according to the second SCS to obtain a third resource occupied by the SSB based on the second SCS; a first determining sub-module, configured to determine whether the third resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission; wherein, 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 RBs or a positive integer number of resource elements REs or a positive integer number of subcarriers in the frequency domain.

33. The device according to claim 31 or 32, characterized in that, The apparatus further includes at least one of the following: a first 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 the overlapping resources for the first downlink transmission; a second 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, receive the first downlink transmission by rate matching the overlapping resources; A third 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, receive the first downlink transmission by puncturing the overlapping resources; 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 the frequency-domain resources corresponding to the time-domain resources in the overlapping resources for the first downlink transmission; A fifth 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, receive the first downlink transmission by rate matching all the frequency-domain resources where the time-domain resources in the overlapping resources are located; A sixth 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, receive the first downlink transmission by puncturing all the frequency-domain resources where the time-domain resources in the overlapping resources are located.

34. The device according to any one of claims 31 to 33, characterized in that, The apparatus further includes at least one of the following: A seventh execution module, configured to, when the fourth resources occupied by the demodulation reference signal of the first downlink transmission overlap with the first resources occupied by the SSB, abandon receiving the first downlink transmission; An eighth execution module, configured to, when the fourth resources occupied by the demodulation reference signal of the first downlink transmission overlap with the first resources occupied by the SSB, skip receiving the first downlink transmission; A ninth execution module, configured to, when the fourth resources occupied by the demodulation reference signal of the first downlink transmission overlap with the first resources occupied by the SSB, the terminal confirms that there is no need to receive the first downlink transmission; A tenth execution module, configured to, when the fourth resources occupied by the demodulation reference signal of the first downlink transmission overlap with the first resources occupied by the SSB, confirm a network scheduling error; An eleventh execution module, configured to, when the fourth resources occupied by the demodulation reference signal of the first downlink transmission overlap with the first resources occupied by the SSB, demodulate the first downlink transmission using the demodulation reference signal that does not overlap with the first resources.

35. The device according to any one of claims 31 to 34, characterized in that, The determination module includes: A second determination sub-module, configured to, in an unlicensed frequency band and when the first information includes a second time, determine whether the SSB is transmitted or valid or available at a first time according to the second time; Wherein, the second time includes at least one of the following: The time when the listen-before-talk LBT of the network-side device is successful; The relative time between the LBT success of the network-side device and the reception of the first information; The remaining time of the channel occupancy when the LBT of the network-side device is successful.

36. The device according to any one of claims 31-35, characterized in that, The apparatus further includes at least one of the following: A twelfth execution module, configured to, when the terminal does not receive the first information, regard all the candidate resources of the SSB or the SSBs at all the candidate positions of the SSB as transmitted or valid or available; The thirteenth execution module is configured to, when the terminal does not receive the first information, consider all candidate resources of all SSBs or the SSBs at all candidate positions of all SSBs as not sent or invalid or unavailable. Wherein, the second information includes at least one of the following: The second information sent by the network-side device; The DCI format for scheduling the physical downlink shared channel PDSCH; The radio network temporary identifier RNTI of the physical downlink control channel PDCCH that scrambles and schedules the PDSCH; The search space type where the PDCCH for scheduling the PDSCH is located.

37. An information indicating device, characterized in that, It includes: A sending module, configured to send the 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 or is valid or is available at the first time; Whether the first resource occupied by the SSB overlaps with the second resource occupied by the first downlink transmission.

38. The device according to claim 37, wherein In the unlicensed frequency band, the first information includes a second time; Wherein, the second time includes at least one of the following: The time when the network-side device's listen-before-talk LBT is successful; The relative time between the network-side device's LBT success and the reception of the first information; The remaining channel occupancy time when the network-side device's LBT is successful.

39. A terminal, characterized in that, It includes a processor and a memory, the memory stores a program or instruction that can 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, characterized in that, It includes a processor and a memory, the memory stores a program or instruction that can 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, characterized in that, The program or instruction is stored on the readable storage medium, and when the program or instruction is executed by the processor, the information indication method according to any one of claims 1-19 is implemented, or the steps of the information indication method according to any one of claims 20 to 30 are implemented.

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