Synchronization signal block reception method, synchronization signal block transmission method, and related devices

Abstract

The application discloses a synchronization signal block receiving method, a synchronization signal block sending method and related equipment, and belongs to the technical field of communication. The synchronization signal block receiving method of the application comprises the following steps: a terminal obtains first information of a first synchronization signal block (SSB) from a network side device; and the terminal receives the first SSB based on the first information. The first SSB is a non-cell defined SSB. The first information comprises at least one of the following: a frequency domain starting position, a subcarrier spacing (SCS), an SSB index, an SSB period, SSB transmission power and a physical cell identifier (PCI).

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a method for receiving synchronization signal blocks, a method for transmitting synchronization signal blocks, and related equipment. Background Technology

[0002] With the development of communication technology, reduced capability (RedCap) terminals have emerged in communication systems. For RedCap terminals, since their supported bandwidth is less than or equal to that of ordinary terminals, the bandwidth portion (BWP) configured by the network-side equipment for ordinary terminals may exceed the capabilities of RedCap terminals. Therefore, the network-side equipment can configure an additional first BWP for RedCap terminals, ensuring that the bandwidth of this first BWP is within the capabilities of the RedCap UE. However, since this first BWP does not include the Cell Defining Synchronization Signal and PBCH block (CD-SSB), monitoring paging is not considered on this first BWP. Instead, monitoring paging needs to be switched to a second BWP that includes the CD-SSB, which results in higher system signaling overhead and wasted resources. Summary of the Invention

[0003] This application provides a method for receiving synchronization signal blocks, a method for sending synchronization signal blocks, and related equipment, which can solve the problem of large system signaling overhead leading to resource waste.

[0004] Firstly, a method for receiving a synchronization signal block is provided, the method comprising:

[0005] The terminal obtains the first information of the first synchronization signal block (SSB) from the network-side device;

[0006] The terminal receives the first SSB based on the first information;

[0007] Wherein, the first SSB is a non-cell-defined SSB; the first information includes at least one of the following: frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, SSB transmission power, and physical cell identifier (PCI).

[0008] Secondly, a method for transmitting synchronization signal blocks is provided, including:

[0009] The network-side device sends the first information of the first synchronization signal block (SSB);

[0010] The network-side device sends the first SSB based on the first information;

[0011] Wherein, the first SSB is a non-cell-defined SSB; the first information includes at least one of the following: frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, SSB transmission power, and physical cell identifier (PCI).

[0012] Thirdly, a synchronization signal block receiving device is provided, comprising:

[0013] The first receiving module is configured to obtain first information of the first synchronization signal block (SSB) from the network-side device; and receive the first SSB based on the first information.

[0014] Wherein, the first SSB is a non-cell-defined SSB; the first information includes at least one of the following: frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, SSB transmission power, and physical cell identifier (PCI).

[0015] Fourthly, a synchronization signal block transmitting device is provided, comprising:

[0016] The first transmitting module is used to transmit first information of the first synchronization signal block (SSB); and to transmit the first SSB based on the first information.

[0017] Wherein, the first SSB is a non-cell-defined SSB; the first information includes at least one of the following: frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, SSB transmission power, and physical cell identifier (PCI).

[0018] Fifthly, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0019] In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to obtain first information of a first synchronization signal block (SSB) from a network-side device; and to receive the first SSB based on the first information; wherein the first SSB is a non-cell-defined SSB; the first information includes at least one of the following: frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, SSB transmission power, and physical cell identifier (PCI).

[0020] In a seventh aspect, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0021] Eighthly, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send first information of a first synchronization signal block (SSB); and to send the first SSB based on the first information.

[0022] Wherein, the first SSB is a non-cell-defined SSB; the first information includes at least one of the following: frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, SSB transmission power, and physical cell identifier (PCI).

[0023] A ninth aspect provides a communication system comprising: a terminal and a network-side device, wherein the terminal is configured to perform the steps of the synchronization signal block receiving method as described in the first aspect, and the network-side device is configured to perform the steps of the synchronization signal block transmitting method as described in the second aspect.

[0024] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0025] Eleventhly, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0026] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method as described in the first aspect, or to implement the steps of the method as described in the second aspect.

[0027] This application embodiment, by determining the configuration of the first SSB, enables RedCap terminals in connected mode to use the first SSB for radio resource management (RRM) and radio link monitoring (RLM). Furthermore, it also enables RedCap terminals in idle / inactive mode to use the first SSB for channel measurement and cell reselection. This eliminates the need for RedCap terminals to perform BWP handover, reducing operational complexity and lowering signaling and resource overhead. Attached Figure Description

[0028] Figure 1 This is a structural diagram of a network system that can be applied to the embodiments of this application;

[0029] Figure 2 This is a flowchart illustrating a synchronization signal block receiving method provided in an embodiment of this application;

[0030] Figure 3 This is a flowchart illustrating a synchronization signal block transmission method provided in an embodiment of this application;

[0031] Figure 4 This is a structural diagram of a synchronization signal block receiving device provided in an embodiment of this application;

[0032] Figure 5 This is a structural diagram of a synchronization signal block transmitting device provided in an embodiment of this application;

[0033] Figure 6 This is a structural diagram of a communication device provided in an embodiment of this application;

[0034] Figure 7 This is a structural diagram of a terminal provided in an embodiment of this application;

[0035] Figure 8 This is a structural diagram of a network-side device provided in an embodiment of this application. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0037] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0038] It is worth noting that the technologies described in this application are 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), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to applications beyond NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0039] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. Terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the specific type of terminal 11 is not limited in this embodiment. Network-side equipment 12 may include access network equipment or core network equipment. Access network equipment 12 may also be referred to as radio access network equipment, radio access network (RAN), radio access network function, or radio access network unit. Access network equipment 12 may include base stations, WLAN access points, or WiFi nodes, etc. Base stations may be referred to as Node B, evolved Node B (eNB), access point, base transceiver station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B node, home evolved B node, Transmitting Receiving Point (TRP), or any other suitable term in the field, 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 this application embodiment, only a base station in an NR system is used as an example for description, and the specific type of base station is not limited.

[0040] For ease of understanding, the following describes some aspects of the embodiments of this application:

[0041] I. Sending of synchronization signal blocks.

[0042] In the design of an NR system, the NR base station needs to transmit SSBs for terminals to perform synchronization, system information acquisition, measurement and evaluation, etc. An SSB consists of two parts: the NR Synchronization Signal (SS) and the NR Physical Broadcast Channel (PBCH). The NR-SS is further divided into the Primary Synchronization Signal (PSS) and the Secondary Synchronization Signal (SSS). The NR-PBCH is used to acquire the Master Information Block (MIB). The MIB also carries downlink (DL) baseband parameter (numerology) information, indicating whether the SSB's numberology matches the Remaining Minimum System Information (RMSI), the initial access messages (msg2 / 4), and the broadcast Open System Internetconnect (OSI) numberology.

[0043] Multiple SSBs constitute an SS burst set. The maximum number of SSBs contained in an SS carrier burst set is related to the carrier frequency used by the network.

[0044] When the frequency is less than 3 GHz, a single SS burst set can contain a maximum of L = 4 SSBs;

[0045] When the carrier frequency range is 3GHz to 6GHz, a single SS burst set can contain a maximum of L = 8 SSBs;

[0046] When the carrier frequency range is above 6 GHz, a single SS burst set can contain a maximum of L = 64 SSBs.

[0047] Regardless of the number of SSBs contained in an SS burst set, all SSBs must be transmitted within a 5ms transmission window.

[0048] NR supports different numbersolutions, and SSB symbols and other symbols (such as symbols for uplink control, downlink control, guard intervals, and data transmission) may use different numbersolutions and be multiplexed (the "other symbols" mentioned later refer to those multiplexed with SSBs). The possible positions of SSBs within a time slot differ depending on the numberolution, and the position of the SSB slot within a 5ms transmission window may also differ. NR above 6GHz supports subcarrier spacing of 60 / 120 / 240kHz, while NR below 6GHz supports subcarrier spacing of 15 / 30 / 60kHz. SSBs can be transmitted with subcarrier spacings of 15 / 30 / 120 / 240kHz. Other symbols can be transmitted with subcarrier spacings of 15 / 30 / 60 / 120kHz, but data cannot be transmitted with a subcarrier spacing of 240kHz. Regardless of the number of the SSB's number of numbers, the number of the RMSI control resource set (CORESET) number of numbers must be consistent with the RMSI number of numbers.

[0049] The transmission location of the SSB as specified in the NR protocol is as follows:

[0050] In a half-frame, the symbol index of the first OFDM symbol of the SSB block is related to the subcarrier spacing of the SSB. Here, the Orthogonal Frequency Division Multiplexing (OFDM) symbol numbered 0 is the first OFDM symbol of the first slot in the 5ms half-frame.

[0051] Case 1, with a subcarrier spacing of 15kHz, the symbol number of the first OFDM symbol transmitting the SSB is {2,8}+14*n. When the carrier frequency is less than or equal to 3GHz, n=0,1. When the carrier frequency is greater than 3GHz and less than or equal to 6GHz, n=0,1,2,3.

[0052] Case 2, with a subcarrier spacing of 30kHz, the symbol number of the first OFDM symbol transmitting the SSB is {4,8,16,20}+28*n. When the carrier frequency is less than or equal to 3GHz, n=0. When the carrier frequency is greater than 3GHz and less than or equal to 6GHz, n=0,1.

[0053] Case 3, with a subcarrier spacing of 30kHz, the symbol number of the first OFDM symbol transmitting the SSB is {2,8}+14*n. When the carrier frequency is less than or equal to 3GHz, n=0,1. When the carrier frequency is greater than 3GHz and less than or equal to 6GHz, n=0,1,2,3.

[0054] Case 4, with a subcarrier spacing of 120kHz, the symbol number of the first OFDM symbol transmitting the SSB is {4,8,16,20}+28*n. When the carrier frequency is greater than 6GHz, n=0,1,2,3,5,6,7,8,10,11,12,13,15,16,17,18.

[0055] II. Sending and Receiving System Information

[0056] The transmission of system information is associated with the transmission of synchronization signal blocks. The PBCH within the synchronization signal block contains parameters indicating the Physical Downlink Control Channel (PDCCH) monitoring for SIB-1. One association method between the PDCCH monitoring occasion and the SSB is that each SSB is associated with a PDCCH monitoring occasion in two consecutive slots of SIB-1. The UE then determines the associated PDCCH monitoring occasion for SIB-1 based on the SSB index and performs PDCCH monitoring. A quasi-co-address relationship is satisfied between the PDCCH and the associated synchronization signal block.

[0057] III. Transmission of the paging channel.

[0058] The UE determines the paging occasion (PO) based on its terminal identifier (UE-ID) and the discontinuous reception (DRX) cycle in idle state. A PO contains multiple paging PDCCH monitoring occasions. The N PDCCH occasions within a PO correspond one-to-one with the N SSBs transmitted by the network-side equipment in chronological order. These N SSBs are the N SSBs transmitted by the network through higher-layer signaling. The paging PDCCH monitoring occasion corresponding to the nth (1≤n≤N)th SSB satisfies a quasi-co-located (QCL) relationship.

[0059] In other words, paging signals are also transmitted via beam scanning. The beams used for paging PDCCH and paging PDSCH are the same as those used for the corresponding SSB.

[0060] IV. Redcap UE.

[0061] For RedCap UEs, the supported bandwidth is less than or equal to the bandwidth capability of ordinary UEs. The bandwidth of the BWP configured by the network-side equipment for an ordinary UE may exceed the capability of the RedCap terminal. Therefore, the network can configure an additional BWP for the RedCap terminal so that the bandwidth of this BWP is within the capability range of the RedCap UE.

[0062] Furthermore, because RedCap UEs have fewer receive antennas than regular UEs, their receive performance is inferior. This leads to network-side equipment potentially using greater overhead and resources for transmission to RedCap UEs. Thus, even if the bandwidth of the network-configured BWP is within the RedCap UE's capability, if the network uses the same BWP for both regular and RedCap UEs, the load on that BWP will be excessive, potentially causing congestion for transmission to regular terminals. Therefore, the current work item has reached the following conclusion:

[0063] Network-side devices can configure a separate initial DL BWP (i.e., the first initial BWP) for RedCap terminals. If this first initial BWP does not include the CD-SSB (i.e., the second SSB) and the entire control resource set (CORESET#0) numbered 0, then:

[0064] If the first initial BWP is configured with a search space for random access operations, namely the Type 1 Common Search Space (Type 1CSS), but not with a paging-related search space, then the first initial BWP may not contain SSB, CORESET#0, and SIB.

[0065] Radio Resource Control (RRC) IDLE and RRC inactive are both conditions.

[0066] RedCap UEs with (RRC_INACTIVE) need to monitor paging messages in the initial BWP associated with the second SSB (i.e., the second initial BWP). RedCap UEs without further consideration of RRC_IDLE and RRC_INACTIVE monitor paging messages in the first initial BWP associated with the first SSB. The first SSB can be understood as a Non-Cell Defining SSB (NCD-SSB).

[0067] For the downlink active BWP (hereinafter referred to as the first BWP) configured for a RedCap UE with an RRC connection (RRC_CONNECTED), if it does not include the second SSB and the entire CORESET#0, then:

[0068] RedCap UEs that only support the mandatory 6-1 feature (FG 6-1) and do not support the optional 6-1a feature (FG 6-1a) are expected to include the first SSB for the serving cell, but not the CORESET#0 / SIB.

[0069] The first BWP mentioned above can be the first initial BWP for an RRC_IDLE / INACTIVE / CONNECTED UE, or it can be an active BWP for any UE in the RRC_CONNECTED state.

[0070] Optionally, the cycle of the first SSB does not need to be configured the same as that of the second SSB, and the cycle of the first SSB should not be less than that of the second SSB.

[0071] Currently, the configuration signaling for the first SSB and the method by which the network provides the first SSB availability to RedCap UEs in RRC_IDLE and RRC_INACTIVE have not been defined.

[0072] The synchronization signal block receiving method provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0073] Reference Figure 2 This application provides a method for receiving synchronization signal blocks, including:

[0074] Step 201: The terminal obtains the first information of the first synchronization signal block (SSB) from the network-side device;

[0075] Step 202: The terminal receives the first SSB based on the first information;

[0076] Wherein, the first SSB is a non-cell-defined SSB; the first information includes at least one of the following: frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, SSB transmission power, and physical cell identifier (PCI).

[0077] In this embodiment, the terminal can be a RedCap terminal. The first information can be understood as partial configuration information of the first SSB. If the first information does not include at least one of the parameters of the first SSB's SCS, SSB index, SSB period, SSB transmission power, and PCI, the terminal can assume that the at least one parameter is the same as the corresponding parameter in the second SSB. For example, if the first information includes the frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, and SSB transmission power, the terminal can assume, determine, or consider that the PCI of the first SSB is the same as the PCI of the second SSB.

[0078] This application embodiment, by determining the configuration of the first SSB, enables RedCap terminals in connected mode to use the first SSB for radio resource management (RRM) and radio link monitoring (RLM). Furthermore, it also enables RedCap terminals in idle / inactive mode to use the first SSB for channel measurement and cell reselection. This eliminates the need for RedCap terminals to perform BWP handover, reducing operational complexity and lowering signaling and resource overhead.

[0079] Optionally, in some embodiments, the frequency domain start position is configured by an absolute frequency domain position or a frequency offset parameter.

[0080] For example, in some embodiments, the absolute frequency domain position can be configured using the following parameters: ssbFrequency or absoluteFrequencySSB. This absolute frequency domain position can be referred to as the Absolute Radio-Frequency Channel Number (ARFCN). It should be understood that the above frequency offset parameter can be used to indicate the offset value. For example, the frequency domain start position can be determined based on this offset value and the frequency offset reference position agreed upon in the protocol.

[0081] Optionally, in some embodiments, the frequency domain start position is determined based on a frequency offset reference position, which includes at least one of the following:

[0082] The starting position of the first bandwidth portion BWP, the ending position of the first BWP, the starting position of the second BWP, the ending position of the second BWP, the starting position of the second SSB, the ending position of the second SSB, the starting position of the control resource set numbered 0, the ending position of the control resource set numbered 0, the starting position of the first control resource set, the ending position of the first control resource set, reference point A, the starting position of the serving cell, and the ending position of the serving cell.

[0083] Wherein, the first control resource set is the control resource set with the smallest index or the control resource set with the largest index contained on the first BWP, the first BWP is at least one of the initial BWP of the terminal independent of the second BWP and the BWP activated by the terminal, the second BWP is a BWP including a second SSB, and the second SSB is a cell-defined SSB.

[0084] In some embodiments, the first control resource set is associated with at least one of the following:

[0085] Type 1 public search space CSS;

[0086] CSS of type 2 or type 2A;

[0087] CSS of type 0 or type 0A.

[0088] It should be understood that, in the embodiments of this application, the aforementioned first BWP can be understood as the first initial BWP for an RRC_IDLE, INACTIVE, or CONNECTED terminal, or as an active BWP for any terminal in the RRC_CONNECTED state.

[0089] Optionally, the above SSB index can be configured using the following parameters: SSB-Index and / or ssb-PositionsInBurst.

[0090] Optionally, in some embodiments, the first information is included in at least one of the following signaling:

[0091] BWP Common Downlink Signaling;

[0092] BWP-DownlinkDedicated;

[0093] System Information Block Frequency Information Downlink Signaling (FrequencyInfoDL-SIB);

[0094] Frequency Information Downlink Signaling (FrequencyInfoDL);

[0095] ServingCellConfigCommon;

[0096] ServingCellConfig signaling.

[0097] Optionally, the first signaling carrying the first information includes at least one of the following:

[0098] Terminal-specific signaling, cell-specific signaling, and system information.

[0099] Optionally, the configuration information of the first SSB may include the first information and may also include second information. In some embodiments, the second information of the first SSB is carried by at least one of the following second signaling: system information, a first object, terminal-specific Radio Resource Control (RRC) signaling, and an RRC connection release message;

[0100] The first object is downlink physical layer signaling or layer 1 signaling.

[0101] For example, network-side devices can send the second information of the first SSB through downlink control information (DCI) or through the physical downlink shared channel (PDSCH).

[0102] Optionally, the aforementioned DCI can be a DCI carrying a paging early indication (PEI) or a DCI for dispatch paging.

[0103] Optionally, the PDSCH described above is preferably a PDSCH scheduled by DCI for paging.

[0104] Optionally, in some embodiments, when the terminal receives the second information carried by the first object and the second information carried by the second object, the terminal determines the second information of the first SSB based on the first object and the second object;

[0105] The second object includes at least one of the system information, terminal-specific RRC signaling, and RRC connection release message.

[0106] In this embodiment of the application, the second information of the first object can be used to overwrite the second information in the second object. For example, when the second information in the first object includes all the parameter configurations of the second information in the second object, the second information of the first object can be directly determined as the second information of the first SSB; when the second information in the first object includes some of the parameter configurations of the second information in the second object, the partial parameters can be directly updated based on the second information of the first object to update the second information in the second object.

[0107] For example, when the second information in the first object includes A1, B1, C1, and D, and the second information in the second object includes A2, B2, and C2, A1, B1, C1, and D can be identified as the second information of the first SSB.

[0108] For example, when the second information in the first object includes A1, B1, and C1, and the second information in the second object includes A2, B2, C2, and E, A1, B1, C1, and E can be determined as the second information of the first SSB.

[0109] For example, when the second information in the first object includes A1, B1, C1 and D, and the second information in the second object includes A2, B2, C2 and E, then A1, B1, C1, D and E can be determined as the second information of the first SSB.

[0110] Optionally, in some embodiments, the second information of the first SSB includes at least one of the following:

[0111] Available information;

[0112] Unavailable information;

[0113] Change information, the change information being used to indicate a change to at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling;

[0114] The information to remain unchanged is used to indicate that at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling should remain unchanged.

[0115] In this application embodiment, the available information may include at least one of the following:

[0116] The terminal believes or expects that the network-side device has actually sent the first SSB;

[0117] A first available duration, which is used to determine the duration of the second information's effective time;

[0118] A first reference point is available, and the first duration is used to determine the start time of the effective time of the second information.

[0119] It should be understood that when the available information includes the available first duration, the duration of the second information's effective time is equal to the first duration.

[0120] Optionally, the duration of the second information's effective period satisfies at least one of the following:

[0121] The effective time of the second information is configured by higher management.

[0122] The effective time of the second information is a predefined or preconfigured period of time;

[0123] The effective time of the second information is indicated by the target indication information;

[0124] The end time of the effective period of the second information is determined by the terminal receiving the next target indication information;

[0125] The target indication information is used to indicate the second information.

[0126] The end time of the effective period of the second information is determined by the terminal receiving the next target indication information. This can be understood as follows: upon receiving a target indication information, the second information carried by that target indication information becomes effective immediately until the next target indication information is received. Alternatively, it can be understood as follows: upon receiving a target indication information, the second information carried by that target indication information becomes effective at the start time as specified by the higher-level configuration or protocol, or as indicated by the target indication information, until the next target indication information is received.

[0127] Optionally, the start time of the effective time of the second information includes one of the following:

[0128] The first moment is the moment when the target indication information is received or the start time of the next time unit after the target indication information is received;

[0129] The start time of the target SSB cycle, wherein the target SSB cycle is the SSB cycle associated with the received target indication information;

[0130] The time and location configured by higher management;

[0131] The first reference point indicated by the target indication information;

[0132] The target indication information is used to indicate the second information.

[0133] In this embodiment of the application, the aforementioned time unit may be a subframe, a time slot, or a symbol, etc., and no further limitations are made here.

[0134] Optionally, in some embodiments, the unavailable information includes at least one of the following:

[0135] The terminal does not believe or expect the network-side device to send the first SSB;

[0136] Second duration not available;

[0137] An unavailable second reference point.

[0138] It should be understood that the aforementioned change information can be interpreted as changing available information in the second information carried in the previously received second signaling to unavailable information, or changing unavailable information in the second information carried in the previously received second signaling to available information. For example, the indication of the current Layer 1 signaling is changed from "available" to "unavailable" relative to the indication of the previous Layer 1 signaling, or from "unavailable" to "available" relative to the indication of the previous Layer 1 signaling.

[0139] The aforementioned "unchanged information" can be understood as either maintaining the available information in the second information carried by the previously received second signaling, or maintaining the unavailable information in the second information carried by the previously received second signaling. For example, the indication of the current Layer 1 signaling remains unchanged relative to the "available" indication of the previous Layer 1 signaling, and is still "available," or it remains unchanged relative to the "unavailable" indication of the previous Layer 1 signaling, and is still "unavailable."

[0140] Optionally, in some embodiments, after the terminal receives the first SSB based on the first information, the method further includes:

[0141] If the terminal does not receive target indication information, the terminal determines whether the first SSB is available or unavailable.

[0142] In this embodiment of the application, it is assumed that the terminal receives the first information of the first SSB, but the indication of the second information of the first SSB is not configured to the terminal or the terminal does not detect the second information. In this case, the terminal assumes that the first SSB is available or unavailable by default.

[0143] Optionally, in some embodiments, the method further includes:

[0144] When a terminal needs to listen for paging or early paging indication on a first BWP, the terminal expects to receive at least one of the first information and the second information of the first SSB, wherein the first BWP is at least one of the terminal's initial BWP independent of the second BWP and the BWP activated by the terminal, and the second BWP is a BWP that includes a cell-defined SSB.

[0145] In this embodiment of the application, the terminal may be a terminal in RRC_IDLE state or RRC_INACTIVE state.

[0146] Optionally, in some embodiments, the method further includes:

[0147] The terminal sends a first request to the network-side device based on the first uplink resource. The first request is used to request the network-side device to send the first SSB on the first BWP. The first BWP is at least one of the terminal's initial BWP independent of the second BWP and the terminal's activated BWP. The second BWP is a BWP that includes a cell definition SSB.

[0148] In this embodiment of the application, the first uplink resource may include any one of the following:

[0149] Physical random access channel resources, resources corresponding to message 3, resources corresponding to message A, and semi-statically configured authorized physical uplink shared channel resources.

[0150] Among them, message 3 and message A can be understood as messages in the random access procedure.

[0151] It should be understood that when the first uplink resource is a physical random access channel resource, the response information of the first request can be message 2; when the first uplink resource is the resource corresponding to message 3, the response information of the first request can be message 4; when the first uplink resource is the resource corresponding to message A, the response information of the first request can be message B.

[0152] In this embodiment of the application, the response information of the first request includes at least one of the first information of the first SSB and the second information of the first SSB.

[0153] Reference Figure 3 This application also provides a method for transmitting a synchronization signal block, comprising:

[0154] Step 301: The network-side device sends the first information of the first synchronization signal block (SSB).

[0155] Step 302: The network-side device sends the first SSB based on the first information;

[0156] Wherein, the first SSB is a non-cell-defined SSB; the first information includes at least one of the following: frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, SSB transmission power, and physical cell identifier (PCI).

[0157] Optionally, the frequency domain start position is configured by an absolute frequency domain position or a frequency offset parameter.

[0158] Optionally, the frequency domain start position is determined based on a frequency offset reference position, which includes at least one of the following:

[0159] The starting position of the first bandwidth portion BWP, the ending position of the first BWP, the starting position of the second BWP, the ending position of the second BWP, the starting position of the second SSB, the ending position of the second SSB, the starting position of the control resource set numbered 0, the ending position of the control resource set numbered 0, the starting position of the first control resource set, the ending position of the first control resource set, reference point A, the starting position of the serving cell and the ending position of the serving cell.

[0160] Wherein, the first control resource set is the control resource set with the smallest index or the control resource set with the largest index contained on the first BWP, the first BWP is at least one of the initial BWP of the terminal independent of the second BWP and the BWP activated by the terminal, the second BWP is the BWP including the second SSB, and the second SSB is the cell definition SSB.

[0161] Optionally, the first set of control resources is associated with at least one of the following:

[0162] Type 1 public search space CSS;

[0163] CSS of type 2 or type 2A;

[0164] CSS of type 0 or type 0A.

[0165] Optionally, the first information is included in at least one of the following signaling:

[0166] BWP public downlink signaling;

[0167] BWP dedicated downlink signaling;

[0168] System information block frequency information downlink signaling;

[0169] Frequency information downlink signaling;

[0170] Serving the community's public configuration signaling;

[0171] Serving the cell with signaling configuration.

[0172] Optionally, the first signaling carrying the first information includes at least one of the following:

[0173] Terminal-specific signaling, cell-specific signaling, and system information.

[0174] Optionally, the second information of the first SSB is carried by at least one of the following second signaling: system information, first object, terminal-specific Radio Resource Control (RRC) signaling, and RRC connection release message;

[0175] The first object is downlink physical layer signaling or layer 1 signaling.

[0176] Optionally, the second information of the first SSB includes at least one of the following:

[0177] Available information;

[0178] Unavailable information;

[0179] Change information, the change information being used to indicate a change to at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling;

[0180] The information to remain unchanged is used to indicate that at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling should remain unchanged.

[0181] Optionally, the available information includes at least one of the following:

[0182] The terminal believes or expects that the network-side device has actually sent the first SSB;

[0183] A first available duration, which is used to determine the duration of the second information's effective time;

[0184] A first reference point is available, and the first duration is used to determine the start time of the effective time of the second information.

[0185] Optionally, the duration of the second information's effective period satisfies at least one of the following:

[0186] The effective time of the second information is configured by higher management.

[0187] The effective time of the second information is a predefined or preconfigured period of time;

[0188] The effective time of the second information is indicated by the target indication information;

[0189] The end time of the effective period of the second information is determined by the terminal receiving the next target indication information;

[0190] The target indication information is used to indicate the second information.

[0191] Optionally, the start time of the effective time of the second information includes one of the following:

[0192] The first moment is the moment when the target indication information is received or the start time of the next time unit after the target indication information is received;

[0193] The start time of the target SSB cycle, wherein the target SSB cycle is the SSB cycle associated with the received target indication information;

[0194] The time and location configured by higher management;

[0195] The first reference point indicated by the target indication information;

[0196] The target indication information is used to indicate the second information.

[0197] Optionally, the unavailable information includes at least one of the following:

[0198] The terminal does not believe or expect the network-side device to send the first SSB;

[0199] Second duration not available;

[0200] An unavailable second reference point.

[0201] Optionally, the method further includes:

[0202] The network-side device sends a first request based on a first uplink resource receiving terminal. The first request is used to request the network-side device to send the first SSB on a first BWP. The first BWP is at least one of the initial BWP of the terminal independent of the second BWP and the BWP activated by the terminal. The second BWP is a BWP that includes a cell definition SSB.

[0203] Optionally, the first uplink resource includes any of the following:

[0204] Physical random access channel resources, resources corresponding to message 3, resources corresponding to message A, and semi-statically configured authorized physical uplink shared channel resources.

[0205] Optionally, the response information for the first request includes at least one of the first information of the first SSB and the second information of the first SSB.

[0206] This application embodiment, by determining the configuration of the first SSB, enables RedCap terminals in connected mode to use the first SSB for radio resource management (RRM) and radio link monitoring (RLM). Furthermore, it also enables RedCap terminals in idle / inactive mode to use the first SSB for channel measurement and cell reselection. This eliminates the need for RedCap terminals to perform BWP handover, reducing operational complexity and lowering signaling and resource overhead.

[0207] The synchronization signal block receiving method provided in this application can be executed by a synchronization signal block receiving device. This application uses the synchronization signal block receiving device executing the synchronization signal block receiving method as an example to illustrate the synchronization signal block receiving device provided in this application.

[0208] Reference Figure 4 This application also provides a synchronization signal block receiving device, the synchronization signal block receiving device 400 including:

[0209] The first receiving module 401 is used to obtain first information of the first synchronization signal block (SSB) from the network-side device; and to receive the first SSB based on the first information.

[0210] Wherein, the first SSB is a non-cell-defined SSB; the first information includes at least one of the following: frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, SSB transmission power, and physical cell identifier (PCI).

[0211] Optionally, the frequency domain start position is configured by an absolute frequency domain position or a frequency offset parameter.

[0212] Optionally, the frequency domain start position is determined based on a frequency offset reference position, which includes at least one of the following:

[0213] The starting position of the first bandwidth portion BWP, the ending position of the first BWP, the starting position of the second BWP, the ending position of the second BWP, the starting position of the second SSB, the ending position of the second SSB, the starting position of the control resource set numbered 0, the ending position of the control resource set numbered 0, the starting position of the first control resource set, the ending position of the first control resource set, reference point A, the starting position of the serving cell and the ending position of the serving cell.

[0214] Wherein, the first control resource set is the control resource set with the smallest index or the control resource set with the largest index contained on the first BWP, the first BWP is at least one of the initial BWP of the terminal independent of the second BWP and the BWP activated by the terminal, the second BWP is a BWP including a second SSB, and the second SSB is a cell-defined SSB.

[0215] Optionally, the first set of control resources is associated with at least one of the following:

[0216] Type 1 public search space CSS;

[0217] CSS of type 2 or type 2A;

[0218] CSS of type 0 or type 0A.

[0219] Optionally, the first information is included in at least one of the following signaling:

[0220] BWP public downlink signaling;

[0221] BWP dedicated downlink signaling;

[0222] System information block frequency information downlink signaling;

[0223] Frequency information downlink signaling;

[0224] Serving the community's public configuration signaling;

[0225] Serving the cell with signaling configuration.

[0226] Optionally, the first signaling carrying the first information includes at least one of the following:

[0227] Terminal-specific signaling, cell-specific signaling, and system information.

[0228] Optionally, the second information of the first SSB is carried by at least one of the following second signaling: system information, first object, terminal-specific Radio Resource Control (RRC) signaling, and RRC connection release message;

[0229] The first object is downlink physical layer signaling or layer 1 signaling.

[0230] Optionally, the synchronization signal block receiving device 400 further includes:

[0231] The determining module is configured to determine the second information of the first SSB based on the first object and the second object when the terminal receives the second information carried by the first object and the second object.

[0232] The second object includes at least one of the system information, terminal-specific RRC signaling, and RRC connection release message.

[0233] Optionally, the second information of the first SSB includes at least one of the following:

[0234] Available information;

[0235] Unavailable information;

[0236] Change information, the change information being used to indicate a change to at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling;

[0237] The information to remain unchanged is used to indicate that at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling should remain unchanged.

[0238] Optionally, the available information includes at least one of the following:

[0239] The terminal believes or expects that the network-side device has actually sent the first SSB;

[0240] A first available duration, which is used to determine the duration of the second information's effective time;

[0241] A first reference point is available, and the first duration is used to determine the start time of the effective time of the second information.

[0242] Optionally, the duration of the second information's effective period satisfies at least one of the following:

[0243] The effective time of the second information is configured by higher management.

[0244] The effective time of the second information is a predefined or preconfigured period of time;

[0245] The effective time of the second information is indicated by the target indication information;

[0246] The end time of the effective period of the second information is determined by the terminal receiving the next target indication information;

[0247] The target indication information is used to indicate the second information.

[0248] Optionally, the start time of the effective time of the second information includes one of the following:

[0249] The first moment is the moment when the target indication information is received or the start time of the next time unit after the target indication information is received;

[0250] The start time of the target SSB cycle, wherein the target SSB cycle is the SSB cycle associated with the received target indication information;

[0251] The time and location configured by higher management;

[0252] The first reference point indicated by the target indication information;

[0253] The target indication information is used to indicate the second information.

[0254] Optionally, the unavailable information includes at least one of the following:

[0255] The terminal does not believe or expect the network-side device to send the first SSB;

[0256] Second duration not available;

[0257] An unavailable second reference point.

[0258] Optionally, the synchronization signal block receiving device 400 further includes:

[0259] The determination module is used to determine whether the first SSB is available or unavailable when the terminal does not receive target indication information.

[0260] Optionally, the synchronization signal block receiving device 400 further includes:

[0261] The processing module is configured to, when the terminal needs to listen for paging or early paging indication on the first BWP, expect to receive at least one of the first information and the second information of the first SSB, wherein the first BWP is at least one of the initial BWP of the terminal independent of the second BWP and the BWP activated by the terminal, and the second BWP is a BWP including the cell definition SSB.

[0262] Optionally, the synchronization signal block receiving device 400 further includes:

[0263] The second sending module is configured to send a first request to the network-side device based on the first uplink resource. The first request is configured to request the network-side device to send the first SSB on the first BWP. The first BWP is at least one of the initial BWP of the terminal independent of the second BWP and the BWP activated by the terminal. The second BWP is a BWP that includes a cell definition SSB.

[0264] Optionally, the first uplink resource includes any of the following:

[0265] Physical random access channel resources, resources corresponding to message 3, resources corresponding to message A, and semi-statically configured authorized physical uplink shared channel resources.

[0266] Optionally, the response information for the first request includes at least one of the first information of the first SSB and the second information of the first SSB.

[0267] Reference Figure 5 This application also provides a synchronization signal block transmitting device, the synchronization signal block transmitting device 500 comprising:

[0268] The first transmitting module 501 is used to transmit first information of the first synchronization signal block (SSB); and to transmit the first SSB based on the first information.

[0269] Wherein, the first SSB is a non-cell-defined SSB; the first information includes at least one of the following: frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, SSB transmission power, and physical cell identifier (PCI).

[0270] Optionally, the frequency domain start position is configured by an absolute frequency domain position or a frequency offset parameter.

[0271] Optionally, the frequency domain start position is determined based on a frequency offset reference position, which includes at least one of the following:

[0272] The starting position of the first bandwidth portion BWP, the ending position of the first BWP, the starting position of the second BWP, the ending position of the second BWP, the starting position of the second SSB, the ending position of the second SSB, the starting position of the control resource set numbered 0, the ending position of the control resource set numbered 0, the starting position of the first control resource set, the ending position of the first control resource set, reference point A, the starting position of the serving cell and the ending position of the serving cell.

[0273] Wherein, the first control resource set is the control resource set with the smallest index or the control resource set with the largest index contained on the first BWP, the first BWP is at least one of the initial BWP of the terminal independent of the second BWP and the BWP activated by the terminal, the second BWP is the BWP including the second SSB, and the second SSB is the cell definition SSB.

[0274] Optionally, the first set of control resources is associated with at least one of the following:

[0275] Type 1 public search space CSS;

[0276] CSS of type 2 or type 2A;

[0277] CSS of type 0 or type 0A.

[0278] Optionally, the first information is included in at least one of the following signaling:

[0279] BWP public downlink signaling;

[0280] BWP dedicated downlink signaling;

[0281] System information block frequency information downlink signaling;

[0282] Frequency information downlink signaling;

[0283] Serving the community's public configuration signaling;

[0284] Serving the cell with signaling configuration.

[0285] Optionally, the first signaling carrying the first information includes at least one of the following:

[0286] Terminal-specific signaling, cell-specific signaling, and system information.

[0287] Optionally, the second information of the first SSB is carried by at least one of the following second signaling: system information, first object, terminal-specific Radio Resource Control (RRC) signaling, and RRC connection release message;

[0288] The first object is downlink physical layer signaling or layer 1 signaling.

[0289] Optionally, the second information of the first SSB includes at least one of the following:

[0290] Available information;

[0291] Unavailable information;

[0292] Change information, the change information being used to indicate a change to at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling;

[0293] The information to remain unchanged is used to indicate that at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling should remain unchanged.

[0294] Optionally, the available information includes at least one of the following:

[0295] The terminal believes or expects that the network-side device has actually sent the first SSB;

[0296] A first available duration, which is used to determine the duration of the second information's effective time;

[0297] A first reference point is available, and the first duration is used to determine the start time of the effective time of the second information.

[0298] Optionally, the duration of the second information's effective period satisfies at least one of the following:

[0299] The effective time of the second information is configured by higher management.

[0300] The effective time of the second information is a predefined or preconfigured period of time;

[0301] The effective time of the second information is indicated by the target indication information;

[0302] The end time of the effective period of the second information is determined by the terminal receiving the next target indication information;

[0303] The target indication information is used to indicate the second information.

[0304] Optionally, the start time of the effective time of the second information includes one of the following:

[0305] The first moment is the moment when the target indication information is received or the start time of the next time unit after the target indication information is received;

[0306] The start time of the target SSB cycle, wherein the target SSB cycle is the SSB cycle associated with the received target indication information;

[0307] The time and location configured by higher management;

[0308] The first reference point indicated by the target indication information;

[0309] The target indication information is used to indicate the second information.

[0310] Optionally, the unavailable information includes at least one of the following:

[0311] The terminal does not believe or expect the network-side device to send the first SSB;

[0312] Second duration not available;

[0313] An unavailable second reference point.

[0314] Optionally, the synchronization signal block transmitting device 500 further includes:

[0315] The second receiving module is configured to receive a first request sent by the first uplink resource terminal. The first request is used to request the network-side device to send the first SSB on the first BWP. The first BWP is at least one of the initial BWP of the terminal independent of the second BWP and the BWP activated by the terminal. The second BWP is a BWP that includes a cell-defined SSB.

[0316] Optionally, the first uplink resource includes any of the following:

[0317] Physical random access channel resources, resources corresponding to message 3, resources corresponding to message A, and semi-statically configured authorized physical uplink shared channel resources.

[0318] Optionally, the response information for the first request includes at least one of the first information of the first SSB and the second information of the first SSB.

[0319] The synchronization signal block receiving device and synchronization signal block transmitting device in the embodiments of this application can be electronic devices, such as electronic devices with an operating system, or components in electronic devices, such as integrated circuits or chips. The electronic device can be a terminal or other devices besides a terminal. For example, the terminal can be, but is not limited to, the type of terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc., and the embodiments of this application do not specifically limit them.

[0320] The synchronization signal block receiving device and synchronization signal block transmitting device provided in the embodiments of this application can achieve Figures 2 to 3 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0321] Optional, such as Figure 6 As shown, this application embodiment also provides a communication device 600, including a processor 601 and a memory 602. The memory 602 stores programs or instructions that can run on the processor 601. For example, when the communication device 600 is a terminal, the program or instructions executed by the processor 601 implement the various steps of the above-described synchronization signal block receiving method embodiment and achieve the same technical effect. When the communication device 600 is a network-side device, the program or instructions executed by the processor 601 implement the various steps of the above-described synchronization signal block sending method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0322] This application embodiment also provides a terminal, including a processor and a communication interface. The communication interface is used to obtain first information of a first synchronization signal block (SSB) from a network-side device; and to receive the first SSB based on the first information. The first SSB is a non-cell-defined SSB. The first information includes at least one of the following: frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, SSB transmission power, and physical cell identifier (PCI). This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 7 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0323] The terminal 700 includes, but is not limited to, at least some of the following components: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

[0324] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 710 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 7 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0325] It should be understood that, in this embodiment, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042. The GPU 7041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0326] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 701 can transmit it to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low-noise amplifier, duplexer, etc.

[0327] The memory 709 can be used to store software programs or instructions, as well as various data. The memory 709 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 709 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 709 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0328] Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 710.

[0329] The radio frequency unit 701 is used to obtain first information of the first synchronization signal block (SSB) from the network-side device and receive the first SSB based on the first information.

[0330] Wherein, the first SSB is a non-cell-defined SSB; the first information includes at least one of the following: frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, SSB transmission power, and physical cell identifier (PCI).

[0331] Optionally, the frequency domain start position is configured by an absolute frequency domain position or a frequency offset parameter.

[0332] Optionally, the frequency domain start position is determined based on a frequency offset reference position, which includes at least one of the following:

[0333] The starting position of the first bandwidth portion BWP, the ending position of the first BWP, the starting position of the second BWP, the ending position of the second BWP, the starting position of the second SSB, the ending position of the second SSB, the starting position of the control resource set numbered 0, the ending position of the control resource set numbered 0, the starting position of the first control resource set, the ending position of the first control resource set, reference point A, the starting position of the serving cell and the ending position of the serving cell.

[0334] Wherein, the first control resource set is the control resource set with the smallest index or the control resource set with the largest index contained on the first BWP, the first BWP is at least one of the initial BWP of the terminal independent of the second BWP and the BWP activated by the terminal, the second BWP is a BWP including a second SSB, and the second SSB is a cell-defined SSB.

[0335] Optionally, the first set of control resources is associated with at least one of the following:

[0336] Type 1 public search space CSS;

[0337] CSS of type 2 or type 2A;

[0338] CSS of type 0 or type 0A.

[0339] Optionally, the first information is included in at least one of the following signaling:

[0340] BWP public downlink signaling;

[0341] BWP dedicated downlink signaling;

[0342] System information block frequency information downlink signaling;

[0343] Frequency information downlink signaling;

[0344] Serving the community's public configuration signaling;

[0345] Serving the cell with signaling configuration.

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

[0347] Terminal-specific signaling, cell-specific signaling, and system information.

[0348] Optionally, the second information of the first SSB is carried by at least one of the following second signaling: system information, first object, terminal-specific Radio Resource Control (RRC) signaling, and RRC connection release message;

[0349] The first object is downlink physical layer signaling or layer 1 signaling.

[0350] Optionally, the processor 710 is configured to determine the second information of the first SSB based on the first object and the second object when the terminal receives the second information carried by the first object and the second object.

[0351] The second object includes at least one of the system information, terminal-specific RRC signaling, and RRC connection release message.

[0352] Optionally, the second information of the first SSB includes at least one of the following:

[0353] Available information;

[0354] Unavailable information;

[0355] Change information, the change information being used to indicate a change to at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling;

[0356] The information to remain unchanged is used to indicate that at least one of the available information and unavailable information in the second information carried in the previously received second signaling should remain unchanged.

[0357] Optionally, the available information includes at least one of the following:

[0358] The terminal believes or expects that the network-side device has actually sent the first SSB;

[0359] A first available duration, which is used to determine the duration of the second information's effective time;

[0360] A first reference point is available, and the first duration is used to determine the start time of the effective time of the second information.

[0361] Optionally, the duration of the second information's effective period satisfies at least one of the following:

[0362] The effective time of the second information is configured by higher management.

[0363] The effective time of the second information is a predefined or preconfigured period of time;

[0364] The effective time of the second information is indicated by the target indication information;

[0365] The end time of the effective period of the second information is determined by the terminal receiving the next target indication information;

[0366] The target indication information is used to indicate the second information.

[0367] Optionally, the start time of the effective time of the second information includes one of the following:

[0368] The first moment is the moment when the target indication information is received or the start time of the next time unit after the target indication information is received;

[0369] The start time of the target SSB cycle, wherein the target SSB cycle is the SSB cycle associated with the received target indication information;

[0370] The time and location configured by higher management;

[0371] The first reference point indicated by the target indication information;

[0372] The target indication information is used to indicate the second information.

[0373] Optionally, the unavailable information includes at least one of the following:

[0374] The terminal does not believe or expect the network-side device to send the first SSB;

[0375] Second duration not available;

[0376] An unavailable second reference point.

[0377] Optionally, the processor 710 is configured to determine whether the first SSB is available or unavailable if the terminal does not receive target indication information.

[0378] Optionally, the processor 710 is configured to, when the terminal needs to listen for paging or early paging indication on the first BWP, expect to receive at least one of the first information of the first SSB and the second information of the first SSB, wherein the first BWP is at least one of the initial BWP of the terminal independent of the second BWP and the BWP activated by the terminal, and the second BWP is a BWP including the cell definition SSB.

[0379] Optionally, the radio frequency unit 701 is further configured to: send a first request to the network-side device based on a first uplink resource, the first request being used to request the network-side device to send the first SSB on a first BWP, the first BWP being at least one of an initial BWP of the terminal independent of a second BWP and a BWP activated by the terminal, the second BWP being a BWP including a cell definition SSB.

[0380] Optionally, the first uplink resource includes any of the following:

[0381] Physical random access channel resources, resources corresponding to message 3, resources corresponding to message A, and semi-statically configured authorized physical uplink shared channel resources.

[0382] Optionally, the response information for the first request includes at least one of the first information of the first SSB and the second information of the first SSB.

[0383] This application embodiment also provides a network-side device, including a processor and a communication interface. The communication interface is used to transmit first information of a first synchronization signal block (SSB); and to transmit the first SSB based on the first information. The first SSB is a non-cell-defined SSB. The first information includes at least one of the following: frequency domain start position, subcarrier spacing (SCS), SSB index, SSB period, SSB transmission power, and physical cell identifier (PCI). This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above method embodiments can be applied to this network-side device embodiment and achieve the same technical effects.

[0384] Specifically, embodiments of this application also provide a network-side device. For example... Figure 8 As shown, the network-side device 800 includes: an antenna 801, a radio frequency (RF) device 802, a baseband device 803, a processor 804, and a memory 805. The antenna 801 is connected to the RF device 802. In the uplink direction, the RF device 802 receives information through the antenna 801 and transmits the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be transmitted and sends it to the RF device 802. The RF device 802 processes the received information and transmits it through the antenna 801.

[0385] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 803, which includes a baseband processor.

[0386] The baseband device 803 may, for example, include at least one baseband board on which multiple chips are disposed, such as... Figure 8 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 805 via a bus interface to call the program in the memory 805 and execute the network device operation shown in the above method embodiment.

[0387] The network-side device may also include a network interface 806, such as a common public radio interface (CPRI).

[0388] Specifically, the network-side device 800 of this embodiment further includes: instructions or programs stored in a memory 805 and executable on a processor 804, wherein the processor 804 calls the instructions or programs in the memory 805 to execute... Figure 5 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0389] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described synchronization signal block receiving method or synchronization signal block sending method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0390] The processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0391] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run programs or instructions to implement the various processes of the above-described synchronization signal block receiving method or synchronization signal block sending method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0392] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0393] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described synchronization signal block receiving method or synchronization signal block sending method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0394] This application also provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the synchronization signal block receiving method as described above, and the network-side device can be used to perform the steps of the synchronization signal block sending method as described above.

[0395] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0396] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0397] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for receiving a synchronization signal block, characterized in that, include: The terminal obtains the first information of the first synchronization signal block (SSB) from the network-side device; The terminal receives the first SSB based on the first information; Wherein, the first SSB is a non-cell-defined SSB; the first information includes the frequency domain start position and the SSB period; The second information of the first SSB is carried through the RRC connection release message; The second information of the first SSB includes available information; The available information includes at least one of the following: The terminal believes or expects the network-side device to send the first SSB; A first available duration, which is used to determine the duration of the second information's effective time; A first reference point is available, which is used to determine the start time of the effective time of the second information.

2. The method according to claim 1, characterized in that, The first information also includes at least one of the following: subcarrier spacing (SCS), SSB index, SSB transmission power, and physical cell identifier (PCI).

3. The method according to claim 1, characterized in that, The frequency domain start position is determined based on a frequency offset reference position, which includes at least one of the following: The starting position of the first bandwidth portion BWP, the ending position of the first BWP, the starting position of the second BWP, the ending position of the second BWP, the starting position of the second SSB, the ending position of the second SSB, the starting position of the control resource set numbered 0, the ending position of the control resource set numbered 0, the starting position of the first control resource set, the ending position of the first control resource set, reference point A, the starting position of the serving cell and the ending position of the serving cell. Wherein, the first control resource set is the control resource set with the smallest index or the control resource set with the largest index contained on the first BWP, the first BWP is at least one of the initial BWP of the terminal independent of the second BWP and the BWP activated by the terminal, the second BWP is a BWP including a second SSB, and the second SSB is a cell-defined SSB.

4. The method according to claim 3, characterized in that, The first control resource set is associated with at least one of the following: Type 1 public search space CSS; CSS of type 2 or type 2A; CSS of type 0 or type 0A.

5. The method according to claim 1, Its features are, The second information of the first SSB also includes at least one of the following: Unavailable information; Change information, the change information being used to indicate a change to at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling; The information to remain unchanged is used to indicate that at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling should remain unchanged.

6. The method according to claim 5, characterized in that, The duration of the second information's effective period must satisfy at least one of the following: The effective time of the second information is configured by higher management. The effective time of the second information is a predefined or preconfigured period of time; The effective time of the second information is indicated by the target indication information; The end time of the effective period of the second information is determined by the terminal receiving the next target indication information; The target indication information is used to indicate the second information.

7. The method according to claim 6, characterized in that, The effective time of the second information includes one of the following: The first moment is the moment when the target indication information is received or the start time of the next time unit after the target indication information is received; The start time of the target SSB cycle, wherein the target SSB cycle is the SSB cycle associated with the received target indication information; The time and location configured by higher management; The first reference point indicated by the target indication information; The target indication information is used to indicate the second information.

8. The method according to claim 5, characterized in that, The unavailable information includes at least one of the following: The terminal does not believe or expect the network-side device to send the first SSB; Second duration not available; An unavailable second reference point.

9. The method according to any one of claims 1 to 8, characterized in that, After the terminal receives the first SSB based on the first information, the method further includes: If the terminal does not receive target indication information, the terminal determines whether the first SSB is available or unavailable.

10. The method according to any one of claims 1 to 8, characterized in that, The frequency domain start position is configured by absolute frequency domain position.

11. The method according to any one of claims 1 to 8, characterized in that, The first information is contained in the BWP dedicated downlink signaling.

12. The method according to any one of claims 1 to 8, characterized in that, The first signaling carrying the first information includes: Terminal-specific signaling.

13. The method according to any one of claims 1 to 8, characterized in that, The method further includes: When a terminal needs to listen for paging or early paging indication on a first BWP, the terminal expects to receive at least one of the first information of the first SSB and the second information of the first SSB, wherein the first BWP is at least one of the terminal's initial BWP independent of the second BWP and the BWP activated by the terminal, and the second BWP is a BWP that includes a cell definition SSB. The second information of the first SSB includes at least one of the following: Available information; Unavailable information; Change information, the change information being used to indicate a change to at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling; The information to remain unchanged is used to indicate that at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling should remain unchanged.

14. The method according to any one of claims 1 to 8, characterized in that, The method further includes: The terminal sends a first request to the network-side device based on the first uplink resource. The first request is used to request the network-side device to send the first SSB on the first BWP. The first BWP is at least one of the terminal's initial BWP independent of the second BWP and the terminal's activated BWP. The second BWP is a BWP that includes a cell definition SSB.

15. The method according to claim 14, characterized in that, The first uplink resource includes any one of the following: Physical random access channel resources, resources corresponding to message 3, resources corresponding to message A, and semi-statically configured authorized physical uplink shared channel resources.

16. The method according to claim 14, characterized in that, The response information for the first request includes at least one of the first information of the first SSB and the second information of the first SSB.

17. A method for transmitting a synchronization signal block, characterized in that, include: The network-side device sends the first information of the first synchronization signal block (SSB); The network-side device sends the first SSB based on the first information; Wherein, the first SSB is a non-cell-defined SSB; the first information includes the frequency domain start position and the SSB period; The second information of the first SSB is carried through the RRC connection release message; The second information of the first SSB includes available information; The available information includes at least one of the following: The terminal believes or expects the network-side device to send the first SSB; A first available duration, which is used to determine the duration of the second information's effective time; A first reference point is available, which is used to determine the start time of the effective time of the second information.

18. The method according to claim 17, characterized in that, The first information also includes at least one of the following: subcarrier spacing (SCS), SSB index, SSB transmission power, and physical cell identifier (PCI).

19. The method according to claim 17, characterized in that, The frequency domain start position is determined based on a frequency offset reference position, which includes at least one of the following: The starting position of the first bandwidth portion BWP, the ending position of the first BWP, the starting position of the second BWP, the ending position of the second BWP, the starting position of the second SSB, the ending position of the second SSB, the starting position of the control resource set numbered 0, the ending position of the control resource set numbered 0, the starting position of the first control resource set, the ending position of the first control resource set, reference point A, the starting position of the serving cell and the ending position of the serving cell. Wherein, the first control resource set is the control resource set with the smallest index or the control resource set with the largest index contained on the first BWP, the first BWP is at least one of the initial BWP of the terminal independent of the second BWP and the BWP activated by the terminal, the second BWP is the BWP including the second SSB, and the second SSB is the cell definition SSB.

20. The method according to claim 19, characterized in that, The first control resource set is associated with at least one of the following: Type 1 public search space CSS; CSS of type 2 or type 2A; CSS of type 0 or type 0A.

21. The method according to any one of claims 18 to 20, Its features are, The second information of the first SSB also includes at least one of the following: Unavailable information; Change information, the change information being used to indicate a change to at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling; The information to remain unchanged is used to indicate that at least one of the available information and / or unavailable information in the second information carried in the previously received second signaling should remain unchanged.

22. The method according to claim 21, characterized in that, The duration of the second information's effective period must satisfy at least one of the following: the effective period of the second information is configured by a higher layer; The effective time of the second information is a predefined or preconfigured period of time; The effective time of the second information is indicated by the target indication information; The end time of the effective period of the second information is determined by the terminal receiving the next target indication information; The target indication information is used to indicate the second information.

23. The method according to claim 22, characterized in that, The effective time of the second information includes one of the following: The first moment is the moment when the target indication information is received or the start time of the next time unit after the target indication information is received; The start time of the target SSB cycle, wherein the target SSB cycle is the SSB cycle associated with the received target indication information; The time and location configured by higher management; The first reference point indicated by the target indication information; The target indication information is used to indicate the second information.

24. The method according to claim 21, characterized in that, The unavailable information includes at least one of the following: The terminal does not believe or expect the network-side device to send the first SSB; Second duration not available; An unavailable second reference point.

25. A synchronization signal block receiving device, characterized in that, include: The first receiving module is used to obtain the first information of the first synchronization signal block (SSB) from the network-side device; Receive the first SSB based on the first information; Wherein, the first SSB is a non-cell-defined SSB; the first information includes the frequency domain start position and the SSB period; The second information of the first SSB is carried through the RRC connection release message; The second information of the first SSB includes available information; The available information includes at least one of the following: The terminal believes or expects the network-side device to send the first SSB; A first available duration, which is used to determine the duration of the second information's effective time; A first reference point is available, which is used to determine the start time of the effective time of the second information.

26. A synchronization signal block transmitting device, characterized in that, include: The first transmitting module is used to transmit the first information of the first synchronization signal block SSB; The first SSB is sent based on the first information; Wherein, the first SSB is a non-cell-defined SSB; the first information includes the frequency domain start position and the SSB period; The second information of the first SSB is carried through the RRC connection release message; The second information of the first SSB includes available information; The available information includes at least one of the following: The terminal believes or expects the network-side device to send the first SSB; A first available duration, which is used to determine the duration of the second information's effective time; A first reference point is available, which is used to determine the start time of the effective time of the second information.

27. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the synchronization signal block receiving method as described in any one of claims 1 to 16.

28. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the synchronization signal block transmission method as described in any one of claims 17 to 24.

29. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the synchronization signal block receiving method as described in any one of claims 1 to 16, or the steps of the synchronization signal block transmitting method as described in any one of claims 17 to 24.

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