Synchronization signal block receiving method, synchronization signal block transmitting method, and related equipment

Abstract

The present application discloses a synchronization signal block receiving method, a synchronization signal block transmitting method, and related devices, which belong to the field of communications technology. The synchronization signal block receiving method of an embodiment of the present application includes: a terminal obtaining first information of a first synchronization signal block (SSB) from a network side device; and the terminal receiving the first SSB based on the first information, where the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain starting position, a subcarrier spacing (SCS), an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier (PCI).

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to Chinese Patent Application No. 202210102661.X filed in China on January 27, 2022, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of communication technology, and in particular to a synchronization signal block receiving method, a synchronization signal block transmitting method, and related devices. [Background technology]

[0003] With the development of communication technology, reduced capability (RedCap) terminals have appeared in communication systems. For RedCap terminals, the bandwidth supported is less than the bandwidth capability of general terminals, so the bandwidth part (BWP) configured by the network side equipment for the general terminal may exceed the capability of the RedCap terminal. The network side equipment can configure an additional first BWP for the RedCap terminal to make the bandwidth of this first BWP within the capability range of the RedCap UE. Since this first BWP does not include a cell defining synchronization signal block (CD-SSB), it is necessary to switch to a second BWP including CD-SSB to monitor paging without considering monitoring paging on this first BWP, thus causing a relatively large system signaling overhead and causing resource waste. Summary of the Invention [Problem to be solved by the invention]

[0004] The embodiments of the present application provide a synchronization signal block receiving method, a synchronization signal block transmitting method and related devices that can solve the problem that system signaling overhead is relatively large, causing resource waste. [Means for solving the problem]

[0005] According to a first aspect, there is provided a synchronization signal block receiving method, the method comprising: The terminal acquires first information of a first synchronization signal block (SSB) from a network side device; and receiving the first SSB based on the first information, Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain starting position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI.

[0006] According to a second aspect, there is provided a synchronization signal block transmission method, the method comprising: The network side device transmits first information of a first synchronization signal block (SSB); The network side device transmits the first SSB based on the first information; Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain starting position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI.

[0007] According to a third aspect, there is provided a synchronization signal block receiving apparatus, the apparatus comprising: A first receiving module is provided for receiving a first information of a first synchronization signal block (SSB) from a network side device and receiving the first SSB based on the first information; Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain starting position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI.

[0008] According to a fourth aspect, there is provided a synchronization signal block transmission apparatus, the apparatus comprising: A first transmitting module for transmitting first information of a first synchronization signal block (SSB) and transmitting the first SSB based on the first information; Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain starting position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI.

[0009] According to a fifth aspect, there is provided a terminal including a processor and a memory, the memory storing a program or instructions operable to run on the processor, the program or instructions, when executed by the processor, implementing the steps of the method of the first aspect.

[0010] According to a sixth aspect, a terminal is provided, the terminal 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 receive the first SSB based on the first information, wherein the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain start position, a subcarrier spacing (SCS), an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier (PCI).

[0011] According to a seventh aspect, there is provided a network side device comprising a processor and a memory, the memory storing a program or instructions operable to run on the processor, the program or instructions, when executed by the processor, realising the steps of the method according to the second aspect.

[0012] According to an eighth aspect, there is provided a network side device, the network side device including a processor and a communication interface, wherein the communication interface is adapted to transmit first information of a first synchronization signal block (SSB) and to transmit the first SSB based on the first information, Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain starting position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI.

[0013] According to a ninth aspect, there is provided a communication system including a terminal and a network side device, wherein the terminal is used to perform steps of the synchronization signal block receiving method described in the first aspect, and the network side device may be used to perform steps of the synchronization signal block transmitting method described in the second aspect.

[0014] According to a tenth aspect, there is provided a readable storage medium having a program or instructions stored thereon, the program or instructions, when executed by a processor, performing steps of the method according to the first aspect or performing steps of the method according to the second aspect.

[0015] According to an eleventh aspect, there is provided a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor running a program or instructions to perform steps of the method of the first aspect or to be used to perform steps of the method of the second aspect.

[0016] According to a thirteenth aspect, there is provided a computer program / program product, the computer program / program product being stored on a storage medium and the computer program / program product being executed by at least one processor to implement the steps of the method according to the first aspect or to implement the steps of the method according to the second aspect. Effect of the Invention

[0017] By determining the configuration of the first SSB, the embodiment of the present application can support a RedCap terminal in a connected state to perform radio resource management (RRM) and radio link monitoring (RLM) using the first SSB, and can also support a RedCap terminal in an IDLE / INACTIVE state to perform channel measurement and cell reselection, etc. In this way, the RedCap terminal does not need to switch BWP, which can reduce the operation complexity of the RedCap terminal and reduce the signaling and resource overhead. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present application. [Diagram 2] 4 is a flowchart of a synchronization signal block receiving method according to an embodiment of the present application; [Diagram 3] 4 is a flowchart of a synchronization signal block transmission method according to an embodiment of the present application; [Figure 4] 1 is a structural diagram of a synchronization signal block receiving device according to an embodiment of the present application; [Diagram 5] FIG. 2 is a structural diagram of a synchronization signal block transmitting device according to an embodiment of the present application; [Figure 6] FIG. 2 is a structural diagram of a communication device according to an embodiment of the present application; [Figure 7] FIG. 2 is a structural diagram of a terminal according to an embodiment of the present application; [Figure 8]FIG. 2 is a structural diagram of a network side device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] The following clearly describes the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application are all within the scope of protection of the present application.

[0020] The terms "first," "second," etc. in the specification and claims of the present application are intended to distinguish between similar objects and are not intended to describe a particular order or sequence. It is to be understood that the terms so used are interchangeable where appropriate, such that the embodiments of the present application may be performed in an order other than that shown or described herein, and that the objects distinguished by "first" and "second" are generally of the same type and do not limit the number of objects, e.g., the first object may be one or more. It is to be noted that "and / or" in the specification and claims represents at least one of the objects connected, and the character " / " generally represents an "or" relationship between the related objects.

[0021] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be applied to 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 the embodiments of the present application are always used interchangeably, and the techniques described may be used in the above-mentioned systems and radio technologies, or may be used in other systems and radio technologies. Although the following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, these techniques may also be applied to applications other than NR system applications, such as sixth generation (6G) and 7G (8G) systems. th This may be applied to a 6G (6th Generation) communication system.

[0022] 1 shows a block diagram of a wireless communication system to which an embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be a mobile phone, a tablet personal computer, a laptop computer (also called a notebook computer), a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, a vehicle user equipment (VUE), a pedestrian user equipment (PUE), a smart home (home equipment having a wireless communication function, such as a refrigerator, a television, a washing machine, or furniture), a game machine, a personal computer, a mobile phone, a mobile terminal (Mobile Internet Device (MID)), ... The network side device 12 may be a terminal side device such as a mobile computer (PC), a deposit and withdrawal machine or a self-service machine, and the wearable device includes a smart watch, a smart band, a smart earphone, a smart glasses, a smart accessory (such as a smart bracelet, a smart ring, a smart necklace, a smart anklet, a smart wristband, a smart clothing, etc.). It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network side device 12 may include an access network device or a core network device, where the access network device may be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a radio access network unit.The access network equipment may include a base station, a Wireless Local Area Network (WLAN) access point, or a WiFi node, etc., and the base station may be called a Node B, an Evolved Node B (eNB), an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a home B node, a home evolved B node, a Transmitting Receiving Point (TRP), or any other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to a specific technical term, and it should be explained that in the embodiments of this application, only a base station in an NR system is taken as an example, but the specific type of the base station is not limited.

[0023] For ease of understanding, the following describes some contents related to the embodiments of the present application.

[0024] 1. Sending a synchronization signal block.

[0025] In the design of the NR system, the NR base station needs to transmit SSBs for terminals to perform synchronization, system information acquisition, measurement evaluation, etc. One SSB consists of two parts, the NR-synchronisation signal (SS) and the NR-physical broadcast channel (PBCH). Here, the NR-SS is divided into two parts, the NR-Primary Synchronisation Signal (PSS) and the NR-Secondary Synchronisation Signal (SSS). Here, the NR-PBCH is used to acquire the system Master Information Block (MIB). The MIB further carries downlink (DL) baseband parameter (numerology) information and is used to indicate whether the SSB numerology is consistent with the remaining minimum system information (RMSI), msg2 / 4 used for initial access, and Open System Internetconnect (OSI) numerology for broadcast.

[0026] Multiple SSBs constitute an SS burst set. The maximum number of SSBs that can be included in an SS carrier burst set is related to the carrier frequency used by the network, When the frequency is less than 3 GHz, one SS burst set can contain a maximum of L=4 SSBs. When the carrier frequency range is from 3 GHz to 6 GHz, one SS burst set can contain a maximum of L = 8 SSBs. When the carrier frequency range is 6 GHz or higher, one SS burst set can include a maximum of L = 64 SSBs.

[0027] Regardless of the number of SSBs contained within a single SS burst set, all of these SSBs must be completed within a single 5 ms transmission window.

[0028] Different numerologies are supported in NR, and SSB symbols and other symbols (e.g., symbols where uplink control is located, symbols where downlink control is located, symbols where guard intervals are located, and symbols used for data transmission, etc.) may adopt different numerologies and may be multiplexed (other symbols, as described below, refer to other symbols in the case of other symbols multiplexed with SSB). In different numerologies, the possible positions of SSB in a slot are different, and the position of the slot where SSB is located may also be different in a 5 ms transmission window. If NR above 6 GHz supports subcarrier spacing of 60 / 120 / 240 kHz, NR below 6 GHz supports subcarrier spacing of 15 / 30 / 60 kHz, where the subcarrier spacing is 15 / 30 / 120 / 240 kHz, SSB can be transmitted. If the subcarrier spacing is 15 / 30 / 60 / 120 kHz, other symbols can be transmitted, and if the subcarrier spacing is 240 kHz, it cannot be used for data transmission. Whatever the SSB numerology, the RMSI control resource set (CORESET) numerology must match the RMSI numerology.

[0029] The SSB transmission positions specified in the NR protocol are as follows:

[0030] The symbol index of the first OFDM symbol of an SSB or SSB block transmitted in one half-frame refers to the subcarrier spacing of the SSB, where the Orthogonal frequency division multiplex (OFDM) symbol numbered 0 is the first OFDM symbol of the first slot in a 5 ms half-frame.

[0031] In case 1, the symbol number of the first OFDM symbol transmitting SSB with 15 kHz subcarrier spacing is {2, 8}+14*n. If the carrier frequency is 3 GHz or less, n=0, 1. If the carrier frequency is greater than 3 GHz and less than or equal to 6 GHz, n=0, 1, 2, 3.

[0032] In case 2, the symbol number of the first OFDM symbol transmitting SSB with 30 kHz subcarrier spacing is {4, 8, 16, 20} + 28 * n. If the carrier frequency is 3 GHz or less, n = 0. If the carrier frequency is greater than 3 GHz and less than or equal to 6 GHz, n = 0, 1.

[0033] In case 3, the subcarrier spacing is 30 kHz, the symbol number of the first OFDM symbol transmitting SSB is {2,8}+14*n, and if the carrier frequency is 3 GHz or less, n = 0, 1. If the carrier frequency is greater than 3 GHz and less than or equal to 6 GHz, n = 0, 1, 2, 3.

[0034] In case 4, with 120 kHz subcarrier spacing, the symbol number of the first OFDM symbol transmitting SSB is {4, 8, 16, 20} + 28 * n. When the carrier frequency is greater than 6 GHz, n = 0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18.

[0035] 2. Sending and receiving system information The transmission of system information is related to the transmission of a synchronization signal block, and indicates the monitoring parameters of the system information physical downlink control channel (PDCCH) for scheduling SIB-1 in the PBCH in the synchronization signal block, and the monitoring occasion of the PDCCH and one of the associated manners of the SSB are as follows: the PDCCH monitoring occasion of the scheduling SIB-1 associated with each SSB is the PDCCH monitoring occasion of two consecutive slots. The UE determines the PDCCH monitoring occasion of the associated scheduling SIB-1 according to the index of the SSB, and monitors the PDCCH. A quasi-co-location relationship is satisfied between the PDCCH and the associated synchronization signal block. Here, the SIB is a system information block.

[0036] 3. Paging channel transmission.

[0037] The UE determines an occasion (PO) for paging monitoring based on a terminal identifier (UE-ID) and a discontinuous reception (DRX) period in an idle state, and one PO includes multiple paging PDCCH monitoring occasions. The N PDCCH occasions in this PO correspond one-to-one in time order to the N SSBs transmitted from the network side device. The N SSBs are the N SSBs of transmission configured by the network through higher layer signaling. The nth paging PDCCH monitoring occasion corresponding to the nth (1≦n≦N) SSB satisfies a quasi co-located relationship (QCL).

[0038] That is, the paging signal is also transmitted using the beam scanning method, and the beams transmitted by the paging PDCCH and the paging PDSCH are the same as the beams used to transmit the corresponding SSBs.

[0039] Four, Redcap UE.

[0040] For a RedCap UE, the supported bandwidth is less than the bandwidth capability of a general UE, so the BWP bandwidth configured by the network side equipment for the general UE may exceed the capability of the RedCap terminal, and the network can configure an additional BWP in the RedCap terminal so that the bandwidth of this BWP is within the capability of the RedCap UE.

[0041] In addition, since the number of receiving antennas of RedCap UE is smaller than that of general UE, the receiving performance is lower than that of general UE, which may cause the network side equipment to use larger overhead and resources to transmit RedCap UE. Even if the bandwidth of the BWP configured by the network side equipment is within the capacity range of RedCap UE, if the network uses the same BWP to transmit general UE and RedCap UE, the load on this BWP may be too large, which may cause congestion of general terminal transmission. Therefore, the current work item has the following conclusion.

[0042] The network side device may configure a single initial DL BWP (i.e., a first initial BWP) for the RedCap terminal, and if the first initial BWP does not include the CD-SSB (i.e., the second SSB) and the entire control resource set numbered 0 (CORESET#0), If a search space for performing related operations for random access is configured on this first initial BWP, i.e., a Type 1 Common Search Space (Type 1 CSS) is configured, and no search space related to paging is configured, then the SSB, CORESET#0 and SIB do not need to be included on this first initial BWP.

[0043] A RedCap UE in Radio Resource Control IDLE (RRC_IDLE) and RRC_INACTIVE needs to monitor for paging messages in an initial BWP associated with a second SSB (i.e., a second initial BWP). A RedCap UE in RRC_IDLE and RRC_INACTIVE does not further consider monitoring for paging in a first initial BWP associated with a first SSB. Here, the first SSB may be understood as a Non Cell Defining SSB (NCD-SSB).

[0044] For a downlink activation BWP (hereinafter referred to as the first BWP) configured in an RRC connected (RRC_CONNECTED) RedCap UE, if it does not include the second SSB and the entire CORESET#0, A RedCap UE that supports only the mandatory 6-1 feature (FG 6-1) and does not support the optional 6-1a feature (FG 6-1a) is expected to include the first SSB for the serving cell but not include CORESET#0 / SIB; The first BWP may be a first initial BWP for an RRC_IDLE / INACTIVE / CONNECTED UE, or may be an activated BWP of any UE in an RRC_CONNECTED state.

[0045] Optionally, the period of the first SSB does not need to be the same configuration as the second SSB, but the period of the first SSB should be equal to or greater than the period of the second SSB.

[0046] Currently, configuration signaling for the primary SSB and how the network provides primary SSB availability to RedCap UEs in RRC_IDLE and RRC_INACTIVE are not defined.

[0047] The following describes in detail the synchronization signal block receiving method according to the embodiments of the present application through several embodiments and its application scenarios in conjunction with the drawings.

[0048] Referring to FIG. 2, an embodiment of the present application provides a synchronization signal block receiving method, the method including: The terminal acquires first information of a first synchronization signal block (SSB) from a network side device in step 201; and receiving 202 the first SSB based on the first information at the terminal; Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain starting position, a subcarrier spacing (SCS), an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier (PCI).

[0049] In an embodiment of the present application, the terminal may be a RedCap terminal. The first information may be understood as part of the configuration information of the first SSB. If the first information does not include at least one parameter of the SCS, SSB index, SSB period, SSB transmit power, and PCI of the first SSB, the terminal may default that the at least one parameter is the same as the corresponding parameter in the second SSB. For example, if the first information includes a frequency domain starting position, a Subcarrier Spacing (SCS), an SSB index, an SSB period, and an SSB transmit power, the terminal may assume, determine, or consider that the PCI of the first SSB is the same as the PCI of the second SSB.

[0050] By determining the configuration of the first SSB, the embodiment of the present application can support a RedCap terminal in a connected state to perform radio resource management (RRM) and radio link monitoring (RLM) using the first SSB, and can also support a RedCap terminal in an IDLE / INACTIVE state to perform channel measurement and cell reselection, etc. In this way, the RedCap terminal does not need to switch BWP, which can reduce the operation complexity of the RedCap terminal and reduce the signaling and resource overhead.

[0051] Optionally, in some embodiments, the frequency domain starting position is configured by an absolute frequency domain position or a frequency offset parameter.

[0052] For example, in some embodiments, the absolute frequency domain location may be configured by the parameters ssbFrequency or absoluteFrequencySSB. This absolute frequency domain location may also be referred to as an Absolute Radio-Frequency Channel Number (ARFCN). It should be understood that the frequency offset parameter may be used to indicate an offset value. For example, a frequency domain start location may be determined based on this offset value and a frequency offset reference location stipulated by the protocol.

[0053] Optionally, in some embodiments, the frequency domain starting location is determined based on a frequency offset reference location, the frequency offset reference location being at least one of a start position of a first bandwidth portion BWP, an end position of the first BWP, a start position of a second BWP, an end position of the second BWP, a start position of a second SSB, an end position of a second SSB, a start position of a control resource set numbered 0, an end position of a control resource set numbered 0, a start position of a first control resource set, an end position of the first control resource set, a reference point A (Point A), a start position of a serving cell, and an end position of a serving cell; Here, the first control resource set is the control resource set with the smallest index or the control resource set with the largest index included on the first BWP, the first BWP is at least one of an initial BWP independent of the second BWP of the terminal and a BWP activated by the terminal, the second BWP is a BWP including a second SSB, and the second SSB is a cell-defined SSB.

[0054] In some embodiments, the first control resource set comprises: Type 1 common search space CSS, Type 2 or Type 2A CSS; It is associated with at least one of type 0 or type 0A CSS.

[0055] It should be understood that in the embodiments of the present application, the first BWP may be understood as a first initial BWP for an RRC_IDLE, INACTIVE or CONNECTED terminal, or as an activated BWP of any terminal in the RRC_CONNECTED state.

[0056] Alternatively, the SSB index may be constituted by the parameters SSB-Index and / or ssb-PositionsInBurst.

[0057] Optionally, in some embodiments, the first information is: BWP common downlink signaling (BWP-DownlinkCommon) and BWP-DownlinkDedicated and A system information block (FrequencyInfoDL-SIB) for downlink signaling (FrequencyInfoDL-SIB); Frequency information downlink signaling (FrequencyInfoDL); Serving cell common configuration signaling (ServingCellConfigCommon); The signaling is included in at least one of the following signaling: serving cell configuration signaling (ServingCellConfig) and serving cell configuration signaling (ServingCellConfig).

[0058] Optionally, the first signaling carrying the first information comprises: It includes at least one of terminal-specific signaling, cell-specific signaling, and system information.

[0059] Optionally, the configuration information of the first SSB may include the first information and further include second information. In some embodiments, the second information of the first SSB is carried by at least one second signaling of system information, a first object, a terminal-specific radio resource control (RRC) signaling, and an RRC connection release message; Here, the first object is downlink physical layer signaling or layer 1 signaling.

[0060] For example, the network side device may transmit the second information of the first SSB via downlink control information DCI, or may transmit the second information of the first SSB via a physical downlink shared channel (PDSCH).

[0061] Alternatively, the DCI may be a DCI carrying a paging early indication (PEI) or a DCI for scheduling paging.

[0062] Alternatively, the PDSCH is a PDSCH scheduled by a DCI, which preferably schedules paging.

[0063] Optionally, in some embodiments, when the terminal receives second information carried by the first target and second information carried by a second target, the terminal determines second information of the first SSB based on the first target and the second target; Here, the second object includes at least one of the system information, the terminal-specific RRC signaling, and an RRC connection release message.

[0064] In an embodiment of the present application, the second information of the first target may be used to overwrite the second information of the second target. For example, when the second information of the first target includes all parameter configurations of the second information of the second target, the second information of the first target may be directly determined as the second information of the first SSB, and when the second information of the first target includes a part of the parameter configurations of the second information of the second target, the part of the parameters may be directly updated to the second information of the second target based on the second information of the first target.

[0065] For example, if the second information in the first target includes A1, B1, C1 and D, and the second information in the second target includes A2, B2 and C2, A1, B1, C1 and D may be determined as the second information of the first SSB.

[0066] For example, if the second information in the first target includes A1, B1, and C1, and the second information in the second target includes A2, B2, C2, and E, A1, B1, C1, and E may be determined as the second information of the first SSB.

[0067] For example, if the second information in the first target includes A1, B1, C1, and D, and the second information in the second target includes A2, B2, C2, and E, A1, B1, C1, D, and E may be determined as the second information of the first SSB.

[0068] Optionally, in some embodiments, the second information of the first SSB comprises: The available information and Unavailable information and modification information for instructing to modify at least one of available information and / or unavailable information in the second information carried by the previously received second signaling; and no-change information for instructing not to change at least one of the available information and / or unavailable information in the second information carried by the previously received second signaling.

[0069] In an embodiment of the present application, the available information comprises: The terminal assumes or expects that the network side device has transmitted the first SSB; an available first duration, the first duration being used to determine the length of time of the validity period of the second information; and an available first reference point, the first duration of which may include at least one of: an available first reference point used to determine a start time of an activation time of the second information.

[0070] It should be understood that if the available information includes an available first duration, the length of time of the validity time of the second information is equal to the first duration.

[0071] Optionally, the duration of the validity period of the second information is: The validity time of the second information is configured by a higher layer; and the validity time of the second information is a predefined or preconfigured fixed time; The activation time of the second information is indicated by target indication information; the end time of the validity period of the second information is determined by the terminal receiving next target indication information; Here, the target designation information is used to designate the second information.

[0072] The end time of the activation time of the second information is determined by the terminal receiving the next target indication information, which may be understood as meaning that when one target indication information is received, the second information carried in the target indication information is activated immediately until the next target indication information is received, or that when one target indication information is received, the second information carried in the target indication information is activated according to a start time configured by a higher layer, or agreed upon by a protocol, or indicated by the target indication information, until the next target indication information is received.

[0073] Optionally, the start time of the validity period of the second information is: a first time, the first time being a time at which the target indication information is received or a start time of a next time unit after the target indication information is received; a start time of a target SSB period, the target SSB period being an SSB period associated with the received target indication information; A time position configured by a higher layer; and a first reference point indicated by the target indication information; Here, the target designation information is used to designate the second information.

[0074] In the embodiment of the present application, the time unit may be a subframe, a slot, a symbol, etc., without further limitation here.

[0075] Optionally, in some embodiments, the unavailable information is: The terminal does not expect or assume that the network side device will transmit the first SSB; the second duration unavailable, and an unavailable second reference point.

[0076] It should be understood that the change information may be understood as changing available information in the second information carried by the previously received second signaling to unavailable information, or changing unavailable information in the second information carried by the previously received second signaling to available information, for example, changing the indication of the current layer 1 signaling to “unavailable” versus “available” indicated by the previous layer 1 signaling, or changing “unavailable” versus “available” indicated by the previous layer 1 signaling.

[0077] The information not to be changed may be understood as making no change to available information in the second information carried by the previously received second signaling, or making no change to unavailable information in the second information carried by the previously received second signaling, for example, the indication of the current layer 1 signaling is not changed to "available" indicated by the previous layer 1 signaling and is still "available" or is not changed to "unavailable" indicated by the previous layer 1 signaling and is still "unavailable".

[0078] Optionally, in some embodiments, after the terminal receives the first SSB based on the first information, the method further comprises: If the terminal does not receive target indication information, the terminal further includes determining whether the first SSB is available or unavailable.

[0079] In an embodiment of the present application, assuming that a terminal receives first information of a first SSB, but an indication of second information of the first SSB is not configured in the terminal or the terminal does not detect the second information, the terminal considers the first SSB to be available or unavailable by default.

[0080] Optionally, in some embodiments, the method further comprises: When the terminal needs to monitor paging or a paging early indication on a first BWP, the terminal further includes expecting to receive at least one of first information of the first SSB and second information of the first SSB, where the first BWP is at least one of an initial BWP that the terminal has activated independent of a second BWP, and the second BWP is a BWP that includes a cell-defined SSB.

[0081] In an embodiment of the present application, the terminal may be a terminal in an RRC_IDLE state or an RRC_INACTIVE state.

[0082] Optionally, in some embodiments, the method further comprises: The terminal further includes sending a first request to the network side equipment based on a first uplink resource, the first request being used to request the network side equipment to transmit the first SSB on a first BWP, the first BWP being at least one of an initial BWP that the terminal has activated independent of a second BWP and a BWP that the terminal has activated, and the second BWP being a BWP including a cell-defined SSB.

[0083] In an embodiment of the present application, the first uplink resource comprises: It may include any one of physical random access channel resources, resources corresponding to message 3, resources corresponding to message A, and semi-statically configured granted physical uplink shared channel resources.

[0084] Here, message 3 and message A may be understood as messages in a random access flow.

[0085] It should be understood that when the first uplink resource is a physical random access channel resource, the response information of the first request may be message 2; when the first uplink resource is a resource corresponding to message 3, the response information of the first request may be message 4; and when the first uplink resource is a resource corresponding to message A, the response information of the first request may be message B.

[0086] In an embodiment of the present 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.

[0087] Referring to FIG. 3, an embodiment of the present application further provides a synchronization signal block transmission method, the method including: The network side device transmits first information of a first synchronization signal block (SSB) in step 301; The network side device includes a step 302 of transmitting the first SSB based on the first information; Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain starting position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI.

[0088] Optionally, the frequency domain starting position comprises an absolute frequency domain position or a frequency offset parameter.

[0089] Optionally, the frequency domain starting position is determined based on a frequency offset reference position, the frequency offset reference position being at least one of a start position of a first bandwidth portion BWP, an end position of the first BWP, a start position of a second BWP, an end position of the second BWP, a start position of a second SSB, an end position of a second SSB, a start position of a control resource set numbered 0, an end position of a control resource set numbered 0, a start position of a first control resource set, an end position of a first control resource set, a reference point A, a start position of a serving cell, and an end position of a serving cell; Here, the first control resource set is the control resource set with the smallest index or the control resource set with the largest index included on the first BWP, the first BWP is at least one of an initial BWP that the terminal has independent of the second BWP and a BWP that the terminal has activated, the second BWP is a BWP that includes a second SSB, and the second SSB is a cell-defined SSB.

[0090] Optionally, the first control resource set comprises: Type 1 common search space CSS, Type 2 or Type 2A CSS; It is associated with at least one of type 0 or type 0A CSS.

[0091] Optionally, the first information is: BWP common downlink signaling; BWP dedicated downlink signaling and System information block frequency information downlink signaling; Frequency information downlink signaling; and Serving cell common configuration signaling; and and serving cell configuration signaling.

[0092] Optionally, the first signaling carrying the first information comprises: It includes at least one of terminal-specific signaling, cell-specific signaling, and system information.

[0093] Optionally, the second information of the first SSB is carried by at least one second signaling of system information, a first object, a terminal-specific radio resource control (RRC) signaling, and an RRC connection release message; Here, the first object is downlink physical layer signaling or Layer 1 signaling.

[0094] Optionally, the second information of the first SSB is: The available information and Unavailable information and modification information for instructing to modify at least one of available information and / or unavailable information in the second information carried by the previously received second signaling; and no-change information for instructing not to change at least one of the available information and / or unavailable information in the second information carried by the previously received second signaling.

[0095] Optionally, the available information comprises: The terminal assumes or expects that the network side device has transmitted the first SSB; an available first duration, the first duration being used to determine the length of time of the validity period of the second information; an available first reference point, the first duration including at least one of: an available first reference point used to determine a start time of an activation time of the second information;

[0096] Optionally, the duration of the validity period of the second information is: The validity time of the second information is configured by a higher layer; and the validity time of the second information is a predefined or preconfigured fixed time; The activation time of the second information is indicated by target indication information; the end time of the validity period of the second information is determined by the terminal receiving next target indication information; Here, the target designation information is used to designate the second information.

[0097] Optionally, the start time of the validity period of the second information is: a first time, the first time being a time at which the target indication information is received or a start time of a next time unit after the target indication information is received; a start time of a target SSB period, the target SSB period being an SSB period associated with the received target indication information; A time position configured by a higher layer; and a first reference point indicated by the target indication information; Here, the target designation information is used to designate the second information.

[0098] Optionally, the unavailable information is: The terminal does not expect or assume that the network side device will transmit the first SSB; the second duration unavailable, and an unavailable second reference point.

[0099] Optionally, the method further comprises: The network side equipment further includes receiving a first request sent by the terminal based on a first uplink resource, the first request being used to request the network side equipment to transmit the first SSB on a first BWP, the first BWP being at least one of an initial BWP independent of a second BWP by the terminal and a BWP activated by the terminal, and the second BWP being a BWP including a cell-defined SSB.

[0100] Optionally, the first uplink resource comprises: The resource includes any one of a physical random access channel resource, a resource corresponding to message 3, a resource corresponding to message A, and a semi-statically configured granted physical uplink shared channel resource.

[0101] Optionally, the first request response information includes at least one of first information of the first SSB and second information of the first SSB.

[0102] By determining the configuration of the first SSB, the embodiment of the present application can support a RedCap terminal in a connected state to perform radio resource management (RRM) and radio link monitoring (RLM) using the first SSB, and can also support a RedCap terminal in an IDLE / INACTIVE state to perform channel measurement and cell reselection, etc. In this way, the RedCap terminal does not need to switch BWP, which can reduce the operation complexity of the RedCap terminal and reduce the signaling and resource overhead.

[0103] The synchronization signal block receiving method according to the embodiment of the present application may be executed by a synchronization signal block receiving device. In the embodiment of the present application, the synchronization signal block receiving device according to the embodiment of the present application will be described taking as an example that the synchronization signal block receiving method is executed by the synchronization signal block receiving device.

[0104] Referring to FIG. 4, an embodiment of the present application further provides a synchronization signal block receiving device, the synchronization signal block receiving device 400 comprising: A first receiving module 401 for obtaining first information of a first synchronization signal block (SSB) from a network side device and receiving the first SSB according to the first information; Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain starting position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI.

[0105] Optionally, the frequency domain starting position comprises an absolute frequency domain position or a frequency offset parameter.

[0106] Optionally, the frequency domain starting position is determined based on a frequency offset reference position, the frequency offset reference position being at least one of a start position of a first bandwidth portion BWP, an end position of the first BWP, a start position of a second BWP, an end position of the second BWP, a start position of a second SSB, an end position of a second SSB, a start position of a control resource set numbered 0, an end position of a control resource set numbered 0, a start position of a first control resource set, an end position of a first control resource set, a reference point A, a start position of a serving cell, and an end position of a serving cell; Here, the first control resource set is the control resource set with the smallest index or the control resource set with the largest index included on the first BWP, the first BWP is at least one of an initial BWP independent of the second BWP of the terminal and a BWP activated by the terminal, the second BWP is a BWP including a second SSB, and the second SSB is a cell-defined SSB.

[0107] Optionally, the first control resource set comprises: Type 1 common search space CSS, Type 2 or Type 2A CSS; It is associated with at least one of type 0 or type 0A CSS.

[0108] Optionally, the first information is: BWP common downlink signaling; BWP dedicated downlink signaling and System information block frequency information downlink signaling; Frequency information downlink signaling; and Serving cell common configuration signaling; and and serving cell configuration signaling.

[0109] Optionally, the first signaling carrying the first information comprises: It includes at least one of terminal-specific signaling, cell-specific signaling, and system information.

[0110] Optionally, the second information of the first SSB is carried by at least one second signaling of system information, a first object, a terminal-specific radio resource control (RRC) signaling, and an RRC connection release message; Here, the first object is downlink physical layer signaling or Layer 1 signaling.

[0111] Optionally, the synchronization signal block receiving device 400 Further comprising a determination module for determining 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 information carried by the second object; Here, the second object includes at least one of the system information, the terminal-specific RRC signaling, and an RRC connection release message.

[0112] Optionally, the second information of the first SSB is: The available information and Unavailable information and modification information for instructing to modify at least one of available information and / or unavailable information in the second information carried by the previously received second signaling; and no-change information for instructing not to change at least one of the available information and / or unavailable information in the second information carried by the previously received second signaling.

[0113] Optionally, the available information comprises: The terminal assumes or expects that the network side device has transmitted the first SSB; an available first duration, the first duration being used to determine the length of time of the validity period of the second information; an available first reference point, the first duration including at least one of: an available first reference point used to determine a start time of an activation time of the second information;

[0114] Optionally, the duration of the validity period of the second information is: The validity time of the second information is configured by a higher layer; and the validity time of the second information is a predefined or preconfigured fixed time; The activation time of the second information is indicated by target indication information; the end time of the validity period of the second information is determined by the terminal receiving next target indication information; Here, the target designation information is used to designate the second information.

[0115] Optionally, the start time of the validity period of the second information is: a first time, the first time being a time at which the target indication information is received or a start time of a next time unit after the target indication information is received; a start time of a target SSB period, the target SSB period being an SSB period associated with the received target indication information; A time position configured by a higher layer; and a first reference point indicated by the target indication information; Here, the target designation information is used to designate the second information.

[0116] Optionally, the unavailable information is: The terminal does not expect or assume that the network side device will transmit the first SSB; the second duration unavailable, and an unavailable second reference point.

[0117] Optionally, the synchronization signal block receiving device 400 The terminal further includes a determination module for determining whether the first SSB is available or unavailable if the terminal does not receive target indication information.

[0118] Optionally, the synchronization signal block receiving device 400 The terminal further includes a processing module for waiting for reception of at least one of first information of the first SSB and second information of the first SSB when the terminal needs to monitor paging or paging early indication on a first BWP, where the first BWP is at least one of an initial BWP independent of a second BWP and a BWP activated by the terminal, and the second BWP is a BWP including a cell-defined SSB.

[0119] Optionally, the synchronization signal block receiving device 400 The terminal further includes a second sending module for sending a first request to the network side equipment based on a first uplink resource, the first request being used to request the network side equipment to send the first SSB on a first BWP, the first BWP being at least one of an initial BWP independent of a second BWP by the terminal and a BWP activated by the terminal, and the second BWP being a BWP including a cell-defined SSB.

[0120] Optionally, the first uplink resource comprises: The resource includes any one of a physical random access channel resource, a resource corresponding to message 3, a resource corresponding to message A, and a semi-statically configured granted physical uplink shared channel resource.

[0121] Optionally, the first request response information includes at least one of first information of the first SSB and second information of the first SSB.

[0122] Referring to FIG. 5, an embodiment of the present application further provides a synchronization signal block transmitting device, the synchronization signal block transmitting device 500 comprising: A first transmitting module 501 for transmitting first information of a first synchronization signal block (SSB) and transmitting the first SSB based on the first information; Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain starting position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI.

[0123] Optionally, the frequency domain starting position comprises an absolute frequency domain position or a frequency offset parameter.

[0124] Optionally, the frequency domain starting position is determined based on a frequency offset reference position, the frequency offset reference position being at least one of a start position of a first bandwidth portion BWP, an end position of the first BWP, a start position of a second BWP, an end position of the second BWP, a start position of a second SSB, an end position of a second SSB, a start position of a control resource set numbered 0, an end position of a control resource set numbered 0, a start position of a first control resource set, an end position of a first control resource set, a reference point A, a start position of a serving cell, and an end position of a serving cell; Here, the first control resource set is the control resource set with the smallest index or the control resource set with the largest index included on the first BWP, the first BWP is at least one of an initial BWP that the terminal has independent of the second BWP and a BWP that the terminal has activated, the second BWP is a BWP that includes a second SSB, and the second SSB is a cell-defined SSB.

[0125] Optionally, the first control resource set comprises: Type 1 common search space CSS, Type 2 or Type 2A CSS; It is associated with at least one of type 0 or type 0A CSS.

[0126] Optionally, the first information is: BWP common downlink signaling; BWP dedicated downlink signaling and System information block frequency information downlink signaling; Frequency information downlink signaling; and Serving cell common configuration signaling; and and serving cell configuration signaling.

[0127] Optionally, the first signaling carrying the first information comprises: It includes at least one of terminal-specific signaling, cell-specific signaling, and system information.

[0128] Optionally, the second information of the first SSB is carried by at least one second signaling of system information, a first object, a terminal-specific radio resource control (RRC) signaling, and an RRC connection release message; Here, the first object is downlink physical layer signaling or Layer 1 signaling.

[0129] Optionally, the second information of the first SSB is: The available information and Unavailable information and modification information for instructing to modify at least one of available information and / or unavailable information in the second information carried by the previously received second signaling; and no-change information for instructing not to change at least one of the available information and / or unavailable information in the second information carried by the previously received second signaling.

[0130] Optionally, the available information comprises: The terminal assumes or expects that the network side device has transmitted the first SSB; an available first duration, the first duration being used to determine the length of time of the validity period of the second information; an available first reference point, the first duration including at least one of: an available first reference point used to determine a start time of an activation time of the second information;

[0131] Optionally, the duration of the validity period of the second information is: The validity time of the second information is configured by a higher layer; and the validity time of the second information is a predefined or preconfigured fixed time; The activation time of the second information is indicated by target indication information; the end time of the validity period of the second information is determined by the terminal receiving next target indication information; Here, the target designation information is used to designate the second information.

[0132] Optionally, the start time of the validity period of the second information is: a first time, the first time being a time at which the target indication information is received or a start time of a next time unit after the target indication information is received; a start time of a target SSB period, the target SSB period being an SSB period associated with the received target indication information; A time position configured by a higher layer; and a first reference point indicated by the target indication information; Here, the target designation information is used to designate the second information.

[0133] Optionally, the unavailable information is: The terminal does not expect or assume that the network side device will transmit the first SSB; the second duration unavailable, and an unavailable second reference point.

[0134] Optionally, the synchronization signal block transmitting device 500 is The terminal further includes a second receiving module for receiving a first request transmitted by the terminal based on a first uplink resource, the first request being used to request the network side equipment to transmit the first SSB on a first BWP, the first BWP being at least one of an initial BWP independent of a second BWP by the terminal and a BWP activated by the terminal, and the second BWP being a BWP including a cell-defined SSB.

[0135] Optionally, the first uplink resource comprises: The resource includes any one of a physical random access channel resource, a resource corresponding to message 3, a resource corresponding to message A, and a semi-statically configured granted physical uplink shared channel resource.

[0136] Optionally, the first request response information includes at least one of first information of the first SSB and second information of the first SSB.

[0137] The synchronization signal block receiving device and the synchronization signal block transmitting device in the embodiment of the present application may be electronic devices, for example, electronic devices having an operating system, or may be components in electronic devices, for example, integrated circuits or chips. The electronic devices may be terminals or other devices other than terminals. Exemplarily, the terminals may include, but are not limited to, the types of terminals 11 listed above, and the other devices may be servers, network attached storage (NAS), etc., and the embodiment of the present application is not specifically limited.

[0138] The synchronization signal block receiving device and the synchronization signal block transmitting device according to the embodiments of the present application can realize each process realized by the embodiments of the method of Figures 2 to 3 and achieve the same technical effects, and will not be described further here in order to avoid repetition of description.

[0139] Optionally, as shown in Fig. 6, the embodiment of the present application further provides a communication device 600, including a processor 601 and a memory 602, and the memory 602 stores a program or instruction that can run on the processor 601. For example, when the communication device 600 is a terminal, when the program or instruction is executed by the processor 601, each step of the embodiment of the synchronization signal block receiving method can be realized, and the same technical effect can be achieved. When the communication device 600 is a network side device, when the program or instruction is executed by the processor 601, each step of the embodiment of the synchronization signal block transmitting method can be realized, and the same technical effect can be achieved. In order to avoid repetition, no further description will be given here.

[0140] The embodiment of the present application further provides a terminal, which includes a processor and a communication interface, and the communication interface is used to obtain first information of a first synchronization signal block SSB from a network side device and receive the first SSB according to the first information, where the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain starting position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI. This terminal embodiment corresponds to the above terminal side method embodiment, and each implementation process and realization manner of the above method embodiment can be applied to this terminal embodiment, and the same technical effects can be achieved. Specifically, FIG. 7 is a schematic diagram of a hardware structure for realizing a terminal of the embodiment of the present application.

[0141] The terminal 700 includes at least some components such as, but not limited to, a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709 and a processor 710.

[0142] As can be understood by those skilled in the art, the terminal 700 may further include a power source (e.g., a battery) for powering each component, and the power source may be logically connected to the processor 710 by a power management system, thereby realizing functions such as charge / discharge management and power consumption management by the power management system. The terminal structure shown in Figure 7 does not constitute a limitation on the terminal, and the terminal may include more or less components than the number of components shown, or a combination of some components, or a different arrangement of components, and will not be further described here.

[0143] It should be understood that in the embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes image data of still or video images obtained by an image capture device (e.g., a camera) in a video capture pattern or an image capture pattern. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. 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 two parts: a touch detection device and a touch controller. The other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, and an operation lever, which will not be described further herein.

[0144] In the embodiment of the present application, the radio frequency unit 701 can receive downlink data from the network side device, and then transmit the data to the processor 710 for processing, and can transmit uplink data to the network side device. In general, the radio frequency unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0145] The memory 709 may be used to store software programs or instructions and various data. The memory 709 may include a first storage area that mainly stores programs or instructions and a second storage area that stores data, where the first storage area can store an operating system, application programs or instructions required for at least one function (e.g., audio playback function, image playback function, etc.), etc. The memory 709 may also include volatile memory or non-volatile memory, or the memory 709 may include both volatile and non-volatile memory. Here, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may 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), Synch link Dynamic Random Access Memory (SLDRAM), and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DRRAM). Memory 709 in embodiments of the present application may include, but is not limited to, these and any other suitable types of memory.

[0146] The processor 710 may include one or more processing units, and optionally, the processor 710 integrates an application processor and a modem processor, where the application processor mainly processes operations related to the operating system, user interface, and application programs, and the like, and the modem processor mainly processes wireless communication signals, such as a baseband processor. As can be understood, the modem processor does not have to be integrated into the processor 710.

[0147] Wherein, the radio frequency unit 701 is used for obtaining first information of a first synchronization signal block (SSB) from a network side device, and receiving the first SSB according to the first information; Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain starting position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI.

[0148] Optionally, the frequency domain starting position comprises an absolute frequency domain position or a frequency offset parameter.

[0149] Optionally, the frequency domain starting position is determined based on a frequency offset reference position, the frequency offset reference position being at least one of a start position of a first bandwidth portion BWP, an end position of the first BWP, a start position of a second BWP, an end position of the second BWP, a start position of a second SSB, an end position of a second SSB, a start position of a control resource set numbered 0, an end position of a control resource set numbered 0, a start position of a first control resource set, an end position of a first control resource set, a reference point A, a start position of a serving cell, and an end position of a serving cell; Here, the first control resource set is the control resource set with the smallest index or the control resource set with the largest index included on the first BWP, the first BWP is at least one of an initial BWP independent of the second BWP of the terminal and a BWP activated by the terminal, the second BWP is a BWP including a second SSB, and the second SSB is a cell-defined SSB.

[0150] Optionally, the first control resource set comprises: Type 1 common search space CSS, Type 2 or Type 2A CSS; It is associated with at least one of type 0 or type 0A CSS.

[0151] Optionally, the first information is: BWP common downlink signaling; BWP dedicated downlink signaling and System information block frequency information downlink signaling; Frequency information downlink signaling; and Serving cell common configuration signaling; and and serving cell configuration signaling.

[0152] Optionally, the first signaling carrying the first information comprises: It includes at least one of terminal-specific signaling, cell-specific signaling, and system information.

[0153] Optionally, the second information of the first SSB is carried by at least one second signaling of system information, a first object, a terminal-specific radio resource control (RRC) signaling, and an RRC connection release message; Here, the first object is downlink physical layer signaling or Layer 1 signaling.

[0154] Optionally, the processor 710 is used to determine second information of the first SSB based on the first target and the second target when the terminal receives second information carried by the first target and second information carried by the second target; Here, the second object includes at least one of the system information, the terminal-specific RRC signaling, and an RRC connection release message.

[0155] Optionally, the second information of the first SSB is: The available information and Unavailable information and modification information for instructing to modify at least one of available information and / or unavailable information in the second information carried by the previously received second signaling; and no-change information for instructing not to change at least one of the available information and the unavailable information in the second information carried by the previously received second signaling.

[0156] Optionally, the available information comprises: The terminal assumes or expects that the network side device has transmitted the first SSB; an available first duration, the first duration being used to determine the length of time of the validity period of the second information; an available first reference point, the first duration including at least one of: an available first reference point used to determine a start time of an activation time of the second information;

[0157] Optionally, the duration of the validity period of the second information is: The validity time of the second information is configured by a higher layer; and the validity time of the second information is a predefined or preconfigured fixed time; The activation time of the second information is indicated by target indication information; the end time of the validity period of the second information is determined by the terminal receiving next target indication information; Here, the target designation information is used to designate the second information.

[0158] Optionally, the start time of the validity period of the second information is: a first time, the first time being a time at which the target indication information is received or a start time of a next time unit after the target indication information is received; a start time of a target SSB period, the target SSB period being an SSB period associated with the received target indication information; A time position configured by a higher layer; and a first reference point indicated by the target indication information; Here, the target designation information is used to designate the second information.

[0159] Optionally, the unavailable information is: The terminal does not expect or assume that the network side device will transmit the first SSB; the second duration unavailable, and an unavailable second reference point.

[0160] Optionally, the processor 710 is adapted to determine whether the first SSB is available or unavailable if the terminal does not receive target indication information.

[0161] Optionally, the processor 710 is used to wait for at least one of first information of the first SSB and second information of the first SSB when the terminal needs to monitor paging or a paging early indication on a first BWP, where the first BWP is at least one of an initial BWP that the terminal has activated independent of a second BWP, and the second BWP is a BWP including a cell-defined SSB.

[0162] Optionally, the radio frequency unit 701 is further used for sending a first request to the network side equipment based on a first uplink resource, the first request being used to request the network side equipment to transmit the first SSB on a first BWP, the first BWP being at least one of an initial BWP independent of a second BWP by the terminal and a BWP activated by the terminal, and the second BWP being a BWP including a cell-defined SSB.

[0163] Optionally, the first uplink resource comprises: The resource includes any one of a physical random access channel resource, a resource corresponding to message 3, a resource corresponding to message A, and a semi-statically configured granted physical uplink shared channel resource.

[0164] Optionally, the first request response information includes at least one of first information of the first SSB and second information of the first SSB.

[0165] An embodiment of the present application further provides a network side device, the network side device including a processor and a communication interface, the communication interface is used for transmitting first information of a first synchronization signal block (SSB), and transmitting the first SSB according to the first information, where the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain starting position, a subcarrier spacing (SCS), an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier (PCI). This embodiment of the network side device corresponds to the embodiment of the method of the above-mentioned network side device, and each implementation process and realization manner of the embodiment of the method can be applied to the embodiment of the network side device, and the same technical effects can be achieved.

[0166] Specifically, the embodiment of the present application further provides a network side device. As shown in Fig. 8, the network side device 800 includes an antenna 801, a radio frequency device 802, a baseband device 803, a processor 804, and a memory 805. The antenna 801 and the radio frequency device 802 are connected. In the uplink direction, the radio frequency 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 transmits it to the radio frequency device 802, and the radio frequency device 802 processes the received information and then sends it out through the antenna 801.

[0167] The methods performed by the network side equipment in the above embodiments may be implemented in a baseband device 803, which includes a baseband processor.

[0168] The baseband device 803 may include, for example, at least one baseband board, on which multiple chips are installed, and as shown in FIG. 8, one of the chips is, for example, a baseband processor, which is connected to a memory 805 via a bus interface, and calls the program in the memory 805 to perform the network equipment operations shown in the above method embodiments.

[0169] The network side equipment may further include a network interface 806, which may be, for example, a common public radio interface (CPRI).

[0170] Specifically, the network side device 800 of the embodiment of the present invention further includes instructions or programs stored in the memory 805 and capable of running on the processor 804, and the processor 804 can call the instructions or programs in the memory 805 to execute the method performed by each module shown in FIG. 5 and achieve the same technical effect, which will not be described further here in order to avoid repetition.

[0171] The embodiments of the present application further provide a readable storage medium, which may be non-volatile or volatile, and a program or instruction is stored on the readable storage medium, which, when executed by a processor, can realize each process of the above-mentioned synchronization signal block receiving method or synchronization signal block transmitting method embodiment, and achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0172] Wherein, the processor is the processor in the terminal according to the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read only memory ROM, a random access memory RAM, a magnetic disk, or an optical disk.

[0173] The embodiments of the present application further provide a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor runs a program or instruction, and is used to realize each process of the embodiments of the above-mentioned synchronization signal block receiving method or synchronization signal block transmitting method, and can achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0174] It should be understood that the chips referred to in the embodiments of the present application may be referred to as system level chips, system chips, chip systems, or systems on chips.

[0175] An embodiment of the present application further provides a computer program / program product, which is stored in a non-transitory readable storage medium, and which can be executed by at least one processor to realize each process of the embodiment of the above-mentioned synchronization signal block receiving method or synchronization signal block transmitting method, and achieve the same technical effect, and will not be described further here in order to avoid repetition of description.

[0176] An embodiment of the present application further provides a communication system including a terminal and a network side equipment, wherein the terminal is used to perform the steps of the synchronization signal block receiving method described above, and the network side equipment may be used to perform the steps of the synchronization signal block transmitting method described above.

[0177] It should be explained that in this specification, the terms "comprises", "includes", or any other variations thereof are intended to cover the non-exclusive "comprises", whereby a process, method, article, or apparatus that includes a set of elements includes not only those elements, but also other elements not expressly listed or inherent to such process, method, article, or apparatus. Unless further limited, an element limited by the phrase "comprises a" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element. It should be pointed out that the scope of the method and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions in an essentially simultaneous manner or in reverse order based on the functions involved, for example, performing the described method in a different order than described, and various steps may be added, omitted, or combined. Also, features described with reference to some examples may be combined with other examples.

[0178] From the above description of the embodiments, it is clear to those skilled in the art that the methods of the above embodiments may be realized in the form of software and a necessary general-purpose hardware platform, and of course, may be realized by hardware, but in many cases, the former is a more preferred embodiment. From this understanding, the substantial or prior art contributions of the technical solution of the present application may be embodied in the form of a computer software product, which may be stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and include some 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 each embodiment of the present application.

[0179] The above describes the embodiments of the present application in conjunction with the drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not limiting. Those skilled in the art can take many forms suggested by the present application without departing from the spirit and scope of the claims, and all of them belong to the protection scope of the present application.

Claims

1. 1. A synchronization signal block receiving method, the method comprising: The terminal acquires first information of a first synchronization signal block (SSB) from a network side device; The terminal receives the first SSB based on the first information; Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain start position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI.

2. The frequency domain start position is determined based on a frequency offset reference position, the frequency offset reference position being at least one of a start position of a first bandwidth portion BWP, an end position of the first BWP, a start position of a second BWP, an end position of the second BWP, a start position of a second SSB, an end position of the second SSB, a start position of a control resource set numbered 0, an end position of a control resource set numbered 0, a start position of a first control resource set, an end position of the first control resource set, a reference point A, a start position of a serving cell, and an end position of a serving cell; 2. The method of claim 1, wherein the first control resource set is a control resource set of a minimum index or a control resource set of a maximum index included in a first BWP, the first BWP is at least one of an initial BWP independent of the second BWP and a BWP activated by the terminal, the second BWP is a BWP including a second SSB, and the second SSB is a cell-defined SSB.

3. The first control resource set comprises: A common search space CSS of type 1; Type 2 or Type 2A CSS; The method of claim 2 , associated with at least one of a Type 0 or Type 0A CSS.

4. The second information of the first SSB is carried by at least one second signaling of system information, a first object, a terminal-specific radio resource control (RRC) signaling, and an RRC connection release message; 2. The method of claim 1, wherein the first object is downlink physical layer signaling or Layer 1 signaling.

5. The method comprises: When the terminal receives second information carried by the first target and second information carried by the second target, the terminal further includes determining second information of the first SSB based on the first target and the second target; The method of claim 4 , wherein the second object includes at least one of the system information, a terminal-specific RRC signaling, and an RRC connection release message.

6. The second information of the first SSB is The available information and Unavailable information and modification information for instructing to modify at least one of available information and / or unavailable information in the second information carried by the previously received second signaling; and non-change information for instructing not to change at least one of the available information and / or unavailable information in the second information carried by the previously received second signaling.

7. The available information is: The terminal assumes or expects that the network side device has transmitted the first SSB; an available first duration, the first duration being used to determine the length of time of the validity period of the second information; 7. The method of claim 6, wherein the first duration includes at least one of: an available first reference point used to determine a start time of an activation time of the second information; and an available first reference point used to determine a start time of an activation time of the second information.

8. The time length of the validity time of the second information is: The validity time of the second information is configured by a higher layer; and the validity time of the second information is a predefined or preconfigured fixed time; The activation time of the second information is indicated by target indication information; the end time of the validity period of the second information is determined by the terminal receiving the next target indication information; The method of claim 7 , wherein the target indication information is used to indicate the second information.

9. The start time of the validity period of the second information is a first time, the first time being a time at which the target indication information is received or a start time of a next time unit after the target indication information is received; a start time of a target SSB period, the target SSB period being an SSB period associated with the received target indication information; A time position configured by a higher layer; and a first reference point indicated by the target indication information; The method of claim 8 , wherein the target indication information is used to indicate the second information.

10. The unavailable information is: The terminal does not expect or assume that the network side device will transmit the first SSB; the second duration unavailable, and an unavailable second reference point.

11. After the terminal receives the first SSB based on the first information, the method includes:

11. The method according to claim 1, further comprising: if the terminal does not receive target indication information, the terminal determines whether the first SSB is available or unavailable.

12. The method of claim 1 , wherein the frequency domain start position is configured by an absolute frequency domain position or a frequency offset parameter.

13. The first information is BWP common downlink signaling; and BWP dedicated downlink signaling; and System information block frequency information downlink signaling; Frequency information downlink signaling; and Serving cell common configuration signaling; and The method according to any one of claims 1 to 10, wherein the method is included in at least one of a serving cell configuration signaling and a serving cell configuration signaling.

14. The first signaling carrying the first information comprises: The method according to any one of claims 1 to 10, comprising at least one of terminal specific signalling, cell specific signalling and system information.

15. The method comprises:

11. The method according to claim 1, further comprising: when the terminal needs to monitor paging or paging early indication on a first BWP, the terminal expects to receive at least one of first information of the first SSB and second information of the first SSB, where the first BWP is at least one of an initial BWP that the terminal has activated independent of a second BWP, and the second BWP is a BWP that includes a cell-defined SSB.

16. The method comprises:

11. The method according to claim 1, further comprising: the terminal transmitting a first request to the network side equipment based on a first uplink resource, the first request being used to request the network side equipment to transmit the first SSB on a first BWP, the first BWP being at least one of an initial BWP independent of a second BWP by the terminal and a BWP activated by the terminal, and the second BWP being a BWP including a cell-defined SSB.

17. The first uplink resource is 17. The method of claim 16, comprising any one of a physical random access channel resource, a resource corresponding to message 3, a resource corresponding to message A, and a semi-statically configured granted physical uplink shared channel resource.

18. 17. The method of claim 16, wherein the first request response information includes at least one of the first information of the first SSB and the second information of the first SSB.

19. 1. A synchronization signal block transmission method, the method comprising: A network side device transmits first information of a first synchronization signal block (SSB); The network side device transmits the first SSB based on the first information; Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain start position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI.

20. The frequency domain start position is determined based on a frequency offset reference position, the frequency offset reference position being at least one of a start position of a first bandwidth portion BWP, an end position of the first BWP, a start position of a second BWP, an end position of the second BWP, a start position of a second SSB, an end position of the second SSB, a start position of a control resource set numbered 0, an end position of a control resource set numbered 0, a start position of a first control resource set, an end position of the first control resource set, a reference point A, a start position of a serving cell, and an end position of a serving cell; 20. The method of claim 19, wherein the first control resource set is a control resource set of a minimum index or a control resource set of a maximum index included in a first BWP, the first BWP is at least one of an initial BWP independent of the second BWP and a BWP activated by the terminal, the second BWP is a BWP including a second SSB, and the second SSB is a cell-defined SSB.

21. The first control resource set comprises: A common search space CSS of type 1; Type 2 or Type 2A CSS; 21. The method of claim 20, associated with at least one of a Type 0 or Type 0A CSS.

22. The second information of the first SSB is carried by at least one second signaling of system information, a first object, a terminal-specific radio resource control (RRC) signaling, and an RRC connection release message; 22. The method of claim 19, wherein the first object is downlink physical layer signaling or Layer 1 signaling.

23. The second information of the first SSB is The available information and Unavailable information and modification information for instructing to modify at least one of available information and / or unavailable information in the second information carried by the previously received second signaling; and non-change information for instructing not to change at least one of the available information and / or unavailable information in the second information carried by the previously received second signaling.

24. The available information is: The terminal assumes or expects that the network side device has transmitted the first SSB; an available first duration, the first duration being used to determine the length of time of the validity period of the second information; 24. The method of claim 23, wherein the first duration includes at least one of: an available first reference point used to determine a start time of an activation time of the second information; and an available first reference point used to determine a start time of an activation time of the second information.

25. The time length of the validity time of the second information is configured by an upper layer; the validity time of the second information is a predefined or preconfigured fixed time; The activation time of the second information is indicated by target indication information; the end time of the validity period of the second information is determined by the terminal receiving the next target indication information; 25. The method of claim 24, wherein the target indication information is used to indicate the second information.

26. The start time of the validity period of the second information is a first time, the first time being a time at which the target indication information is received or a start time of a next time unit after the target indication information is received; a start time of a target SSB period, the target SSB period being an SSB period associated with the received target indication information; A time position configured by a higher layer; and a first reference point indicated by the target indication information; 26. The method of claim 25, wherein the target indication information is used to indicate the second information.

27. The unavailable information is: The terminal does not expect or assume that the network side device will transmit the first SSB; the second duration unavailable, and a second reference point that is unavailable.

28. A synchronization signal block receiving apparatus, comprising: A first receiving module is provided for obtaining first information of a first synchronization signal block (SSB) from a network side device and receiving the first SSB based on the first information; Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain start position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI.

29. A synchronization signal block transmission device, comprising: a first transmitting module for transmitting first information of a first synchronization signal block (SSB) and transmitting the first SSB based on the first information; Here, the first SSB is a non-cell-defined SSB, and the first information includes at least one of a frequency domain start position, a subcarrier spacing SCS, an SSB index, an SSB period, an SSB transmission power, and a physical cell identifier PCI.

30. A terminal including a processor and a memory, the memory storing a program or instructions operable on the processor, the program or instructions implementing the steps of the synchronization signal block receiving method according to any one of claims 1 to 18 when executed by the processor.

31. A network side device including a processor and a memory, the memory storing a program or instructions operable on the processor, the program or instructions implementing the steps of the synchronization signal block transmission method according to any one of claims 19 to 27 when executed by the processor.

32. A readable storage medium having a program or instructions stored thereon, which, when executed by a processor, implements the steps of a synchronization signal block receiving method described in any one of claims 1 to 18, or the steps of a synchronization signal block transmitting method described in any one of claims 19 to 27.

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