SSB determination method, device, equipment and storage medium

Abstract

The present application discloses a method, device, equipment and storage medium for determining an SSB, and relates to the field of mobile communications. The method includes: determining the first SSB according to the cell indication information of the first synchronization signal block SSB and the first index information of the first SSB; determining the large-scale parameters, beam or transmission power of the first signal according to the first SSB; or, reporting CSI based on the first SSB; the cell indication information is used to indicate whether the first SSB is the SSB of the serving cell or the SSB of the neighboring cell, and the first index information is used to indicate the first SSB. The first SSB can be determined according to the first index information, and then the parameter information of the first signal can be determined or CSI can be reported based on the first SSB. There is no need to repeatedly configure the information of the neighboring cell, so that the parameters of the first signal can be determined or CSI can be reported, which further reduces the signaling overhead.

Description

[0001] This application is a divisional application of an application with an application date of August 7, 2020, application number 202080102885.X (international application number PCT / CN2020 / 107936), and invention name “SSB determination method, device, equipment and storage medium”. Technical Field

[0002] The present application relates to the field of mobile communications, and in particular to a SSB determination method, apparatus, device and storage medium. Background Art

[0003] The mobile device will receive the SSB (Synchronization Signal Block) from the serving cell or the adjacent cell. If the beam of a signal comes from the SSB of the adjacent cell, the beam information of the signal will contain all the information of the corresponding SSB, including PCID, SSB index information, SSB resource configuration information, and SSB power configuration information. The terminal detects the SSB based on the information of the SBB. If the beams of multiple signals all come from the SSB of the adjacent cell, it is necessary to configure the corresponding information of the above SSB for each signal. However, in the downlink multi-TRP (Transmission Reception Point) collaborative transmission, since there is only one adjacent cell participating in the collaboration, the above method requires repeated configuration of the information of this adjacent cell, resulting in a large waste of signaling overhead. Summary of the invention

[0004] The embodiments of the present application provide a method, apparatus, device and storage medium for determining SSB, which can determine the parameters of the first signal or perform CSI reporting without repeatedly configuring the information of the neighboring cell, thereby further reducing the signaling overhead. The technical solution is as follows:

[0005] According to one aspect of the present application, a SSB determination method is provided, which is applied to a terminal, and the method includes:

[0006] Determine the first SSB according to the cell indication information of the first synchronization signal block SSB and the first index information of the first SSB;

[0007] Determine a large-scale parameter, beam, or transmit power of a first signal according to the first SSB; or report CSI based on the first SSB;

[0008] The cell indication information is used to indicate whether the first SSB is the SSB of the serving cell or the SSB of the neighboring cell, and the first index information is used to indicate the SSB index of the first SSB.

[0009] According to one aspect of the present application, a SSB determination method is provided, which is applied to a network device, and the method includes:

[0010] Sending configuration information to the terminal, where the configuration information includes cell indication information of the first SSB and first index information of the first SSB;

[0011] Sending the first SSB to the terminal;

[0012] The cell indication information is used to indicate whether the first SSB is the SSB of the serving cell or the SSB of the neighboring cell, and the first index information is used to indicate the SSB index of the first SSB;

[0013] The terminal is used to determine the first SSB according to the cell indication information and the first index information, and determine the large-scale parameters, beam or transmission power of the first signal according to the first SSB; or, report CSI based on the first SSB.

[0014] According to one aspect of the present application, a SSB determination device is provided, which is set in a terminal, and the device includes:

[0015] A determination module, configured to determine the first SSB according to the cell indication information of the first synchronization signal block SSB and the first index information of the first SSB;

[0016] An information processing module, configured to determine a large-scale parameter, a beam, or a transmit power of a first signal according to the first SSB; or to report CSI based on the first SSB;

[0017] The cell indication information is used to indicate whether the first SSB is the SSB of the serving cell or the SSB of the neighboring cell, and the first index information is used to indicate the SSB index of the first SSB.

[0018] According to one aspect of the present application, there is provided an SSB determination device, which is arranged in a network device, and the device includes:

[0019] A first sending module, configured to send configuration information to a terminal, wherein the configuration information includes cell indication information of a first SSB and first index information of the first SSB; the cell indication information is used to indicate whether the first SSB is an SSB of a serving cell or an SSB of a neighboring cell, and the first index information is used to indicate an SSB index of the first SSB;

[0020] A second sending module, configured to send the first SSB to the terminal;

[0021] The terminal is used to determine the first SSB according to the cell indication information and the first index information, and determine the large-scale parameters, beam or transmission power of the first signal according to the first SSB; or, report CSI based on the first SSB.

[0022] According to one aspect of the present application, a terminal is provided, comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the SSB determination method as described in the above aspects.

[0023] According to one aspect of the present application, a network device is provided, wherein the terminal includes: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the SSB determination method as described in the above aspects.

[0024] According to one aspect of the present application, a computer-readable storage medium is provided, in which executable instructions are stored. The executable instructions are loaded and executed by the processor to implement the SSB determination method as described in the above aspects.

[0025] The technical solution provided by the embodiments of the present application includes at least the following beneficial effects:

[0026] The cell indication information of the first SSB can indicate whether the first SSB belongs to a service cell or a neighboring cell, with low signaling overhead. The first SSB can also be determined according to the first index information, and then the parameter information of the first signal can be determined based on the first SSB or CSI reporting can be performed. There is no need to repeatedly configure the information of the neighboring cells, which further reduces the signaling overhead. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic diagram of a beam management process provided by an exemplary embodiment of the present application is shown;

[0029] Figure 2 A schematic diagram of downlink non-coherent transmission provided by an exemplary embodiment of the present application is shown;

[0030] Figure 3A schematic diagram of uplink non-coherent transmission provided by an exemplary embodiment of the present application is shown;

[0031] Figure 4 A block diagram of a communication system provided by an exemplary embodiment of the present application is shown;

[0032] Figure 5 A flow chart of a SSB determination method provided by an exemplary embodiment of the present application is shown;

[0033] Figure 6 A flow chart of a SSB determination method provided by an exemplary embodiment of the present application is shown;

[0034] Figure 7 A flow chart of a SSB determination method provided by an exemplary embodiment of the present application is shown;

[0035] Figure 8 A flow chart of a SSB determination method provided by an exemplary embodiment of the present application is shown;

[0036] Fig. 9 A flow chart of a SSB determination method provided by an exemplary embodiment of the present application is shown;

[0037] Fig.10 A flow chart of a SSB determination method provided by an exemplary embodiment of the present application is shown;

[0038] Fig.11 A flow chart of a SSB determination method provided by an exemplary embodiment of the present application is shown;

[0039] Fig.12 A block diagram of an SSB determination device provided by an exemplary embodiment of the present application is shown;

[0040] Fig.13 A block diagram of an SSB determination device provided by an exemplary embodiment of the present application is shown;

[0041] Fig.14 A block diagram of an SSB determination device provided by an exemplary embodiment of the present application is shown;

[0042] Fig.15 A block diagram of an SSB determination device provided by an exemplary embodiment of the present application is shown;

[0043] Fig.16 A schematic diagram of the structure of a communication device provided by an exemplary embodiment of the present application is shown. DETAILED DESCRIPTION

[0044] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0045] It can be understood that the terms "first", "second", etc. used in this application can be used to describe various concepts in this article, but unless otherwise specified, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another concept.

[0046] First, the nouns involved in the embodiments of the present application are briefly introduced:

[0047] Downlink beam management: In NR (New Radio), network devices can use analog beams to transmit PDSCH (Physical Downlink Shared Channel). Before performing analog beamforming, network devices need to determine the beam used through the downlink beam management process. Downlink beam management can be based on CSI-RS (Channel State Information Reference signal) or SSB.

[0048] In one possible implementation, the network device sends multiple SSBs or multiple CSI-RS resources for beam management. The terminal performs measurements based on these SSBs or CSI-RS resources, selects a preset number of SSBs or CSI-RS resources with the best reception quality, and reports the preset number of SSB indices or CSI-RS resource indices and the corresponding RSRP (Reference Signal Receiving Power) to the network device.

[0049] Among them, SSB is the SSB of the serving cell, and the terminal needs to measure and report the SSB of the serving cell based on the SSB index set configured by the network device. The network device obtains an optimal SSB or CSI-RS resource based on the report of the terminal, and determines the transmit beam used as the transmit beam used for downlink transmission, so as to use the transmit beam to transmit the downlink control channel or data channel. Before transmitting the downlink control channel or data channel, the network device will indicate the corresponding QCL (Quasi Co location) reference signal to the terminal through the TCI (Transmission Configuration indication) status, so that the terminal can use the receive beam used to receive the QCL reference signal to receive the corresponding downlink control channel or data channel. The following takes SSB as an example to illustrate the downlink beam management. The beam management process based on SSB is as follows: Figure 1As shown, the network device sends N SSBs to the terminal. The terminal selects resources according to the quality of the received SSB and sends SSB index information or receiving power to the network device. The network device sends the TCI status to the terminal, and then sends PDCCH (Physical Downlink Control Channel), PDSCH or CSI-RS through the transmission beam of the QCL corresponding to the TCI status.

[0050] QCL indication of downlink transmission: In the NR system, the network equipment can configure a corresponding TCI state for each downlink reference signal or downlink channel to indicate the QCL reference signal corresponding to the target downlink reference signal or the target downlink channel, so that the terminal receives the target downlink reference signal or the target downlink channel based on the QCL reference signal.

[0051] Among them, a TCI state can include the following configurations:

[0052] TCI state flag, used to indicate a TCI state;

[0053] QCL information 1;

[0054] QCL Information2.

[0055] Among them, a QCL information includes:

[0056] QCL type configuration information, which can be any one of QCL type A, QCL type B, QCL type C or QCL type D;

[0057] The QCL reference signal configuration information includes the cell identifier where the reference signal is located, the BWP (Band Width Part) identifier and the reference signal identifier. The reference signal identifier may be a CSI-RS resource identifier or an SSB index.

[0058] Among them, in QCL information 1 and QCL information 2, the QCL type of at least one QCL information must be one of typeA, typeB, and typeC, and the QCL type of the other QCL information must be QCL type D.

[0059] Among them, the definitions of different QCL type configurations are as follows:

[0060] "QCL-TypeA"': {Doppler shift, Doppler spread, average delay, delay spread};

[0061] "QCL-TypeB": {Doppler shift, Doppler spread};

[0062] "QCL-TypeC":{Doppler shift, average delay};

[0063] "QCL-TypeD":{spatial reception parameters}.

[0064] If the network device configures the QCL reference signal of the target downlink signal as an SSB or CSI-RS resource through the TCI state, and the QCL type is configured as typeA, typeB or typeC, the terminal can assume that the target downlink signal is the same as the target large-scale parameter of the SSB or CSI-RS resource, and thus use the same receiving parameters for reception, and the target large-scale parameters are determined by the QCL type configuration. In addition, if the network device configures the QCL reference signal of the target downlink signal as an SSB or CSI-RS resource through the TCI state, and the QCL type is configured as typeD, the terminal can use the same receiving beam as the receiving SSB or CSI-RS resource to receive the target downlink signal, that is, at this time, the terminal can determine the receiving beam of the target downlink signal according to the TCI state.

[0065] The target downlink signal and the corresponding QCL reference signal are transmitted by the same TRP, the same panel, or the same beam in the network device. If the transmission TRP, transmission panel, or transmission beam of the two downlink signals are different, the network device will configure different TCI states.

[0066] For downlink control channels, the TCI state can be indicated by RRC signaling or RRC signaling and MAC signaling. For downlink data channels, the available TCI state set is indicated by RRC signaling, and some of the TCI states are activated by MAC layer signaling. The TCI state indication field in the DCI indicates one or two TCI states from the activated TCI states, and the one or two TCI states are used for DCI scheduling PDSCH. For CSI-RS, the QCL reference signal of CSI-RS can be directly configured by high-level signaling, which can be an SSB or another CSI-RS.

[0067] Uplink beam management: In NR, for each PUCCH resource, multiple spatial related information (PUCCH-spatialrelationinfo) is configured in the RRC signaling, and then the currently used PUCCH-spatialrelationinfo is indicated through MAC layer signaling. Among them, each PUCCH-spatialrelationinfo contains a reference signal for determining the transmit beam of the PUCCH, and may also contain the power control parameters of the corresponding PUCCH.

[0068] The reference signal may be an SRS or a CSI-RS or an SSB of a serving cell. If the reference signal is a CSI-RS or an SSB, the terminal uses the receiving beam of the CSI-RS or SSB as the transmitting beam of the PUCCH. If the reference signal is an SRS, the terminal uses the transmitting beam of the SRS as the transmitting beam of the PUCCH.

[0069] For each SRS resource, corresponding space-related information may also be configured through RRC signaling, including a reference signal for determining a transmission beam of the SRS.

[0070] The reference signal may be an SRS or a CSI-RS or an SSB of a serving cell. If the reference signal is a CSI-RS or an SSB, the terminal uses the receiving beam of the CSI-RS or SSB as the transmitting beam of the PUCCH. If the reference signal is an SRS, the terminal uses the transmitting beam of the SRS as the transmitting beam of the PUCCH.

[0071] If the SRS resource is an SRS resource used for positioning, the SSB in the spatial related information may be an SSB from a neighboring cell. As shown below, in the spatial related information of the SRS, the reference signal used to determine the transmit beam of the SRS may be a signal from the serving cell, an SSB from a neighboring cell, or a downlink positioning reference signal. When the reference signal is an SSB of a neighboring cell, the network device needs to further indicate the PCID, SSB index, and resource information of the SSB in the spatial related information, and the terminal can detect the SSB of the neighboring cell based on these configurations. Among them, the spatial related information of each SRS resource needs to include this information.

[0072] Downlink non-coherent transmission: For example, Figure 2 As shown, in downlink non-coherent transmission, multiple TRPs can use different control channels on the same physical resources to independently schedule multiple PDSCH transmissions of a terminal, or use the same control channel to schedule transmissions of different TRPs. For downlink transmissions scheduled by multiple PDCCHs, the scheduled PDSCHs can be transmitted in the same time slot or in different time slots. The terminal needs to support simultaneous reception of PDCCH and PDSCH from different TRPs. Among them, the two TRPs can be different TRPs of the same cell or two different physical cells.

[0073] Uplink non-coherent transmission: For example, Figure 3As shown, in uplink non-coherent transmission, different TRPs can also independently schedule PUSCH transmission of the same terminal. Different PUSCH transmissions can be configured with independent transmission parameters, such as beam, precoding matrix, number of layers, etc. The scheduled PUSCH transmissions can be transmitted in the same time slot or in different time slots. PUSCHs transmitted by different TRPs can be scheduled based on multiple DCIs, which can be carried by different co-resets. Among them, the two cooperating TRPs can also be two different physical cells.

[0074] Figure 4 A block diagram of a communication system provided by an exemplary embodiment of the present application is shown. The communication system may include: an access network 12 and a terminal 13.

[0075] The access network 12 includes several network devices 120. The network device 120 may be a base station, which is a device deployed in the access network to provide wireless communication functions for the terminal. The base station may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different wireless access technologies, the names of devices with base station functions may be different. For example, in an LTE system, it is called eNodeB or eNB; in a 5G NR-U system, it is called gNodeB or gNB. With the evolution of communication technology, the description of "base station" may change. For the convenience of the embodiments of the present application, the above-mentioned devices that provide wireless communication functions for the terminal 13 are collectively referred to as access network devices.

[0076] The terminal 13 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, as well as various forms of user equipment, mobile stations (MS), terminals, etc. For the convenience of description, the above-mentioned devices are collectively referred to as terminals. The access network device 120 and the terminal 13 communicate with each other through some air interface technology, such as a Uu interface.

[0077] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-based access to unlicensed spectrum, LTE-U) system, NR-U system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, Wireless Local Area Network (WLAN) Networks, WLAN), Wireless Fidelity (WiFi), next generation communication systems or other communication systems, etc.

[0078] Generally speaking, the number of connections supported by traditional communication systems is limited and easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but also support, for example, device to device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), vehicle to vehicle (V2V) communication and vehicle to everything (V2X) system, etc. The embodiments of the present application can also be applied to these communication systems.

[0079] Figure 5A flowchart of an SSB determination method provided by an exemplary embodiment of the present application is shown, which is applied to Figure 4 In the terminal and network device shown, the method includes at least part of the following contents:

[0080] Step 510: The network device sends configuration information to the terminal.

[0081] The configuration information includes cell indication information of the first SSB and first index information of the first SSB, and the cell indication information is used to indicate whether the first SSB is the SSB of the serving cell or the SSB of the neighboring cell.

[0082] In an embodiment of the present application, the network device can indicate whether the first SSB of the terminal belongs to a service cell or a neighboring cell. The network device can be a network device corresponding to the service cell, or a network device corresponding to the neighboring cell.

[0083] Optionally, the cell indication information is used to indicate whether the first SSB belongs to a serving cell or a neighboring cell.

[0084] The cell indication information includes bits, and the network device can indicate the cell to which the first SSB belongs through the bits in the cell indication information.

[0085] The first index information is used to indicate the SSB index of the first SSB. The terminal can determine the first SSB according to the first index information.

[0086] Optionally, the first SSB is an SSB corresponding to the first index information; or, the first SSB is an SSB set for CSI measurement corresponding to the first index information. In this case, the first index information may include SSB indexes of multiple SSBs. For example, cell indication information may be configured separately for each SSB, or the same cell indication information may be configured for multiple SSBs in an SSB set.

[0087] In the embodiment of the present application, indicating whether the first SSB belongs to the serving cell or the neighboring cell by the bit in the cell indication information includes any of the following situations:

[0088] (1) The cell indication information includes 1 bit. If the cell indication information is a first preset value, the first SSB is the SSB of the serving cell. If the cell indication information is a second preset value, the first SSB is the SSB of the neighboring cell.

[0089] The first preset value and the second preset value are configured by the network device, or determined by negotiation between the network device and the terminal, or configured in other ways. In addition, the first preset value and the second preset value are different. For example, if the first preset value is 1, the second preset value is 0, or if the first preset value is 0, the second preset value is 1.

[0090] (2) If the cell indication information is empty, the first SSB is the serving cell; if the cell indication information is not empty, the first SSB is the neighboring cell.

[0091] (3) If the cell indication information is empty, the first SSB is the neighboring cell; if the cell indication information is not empty, the first SSB is the serving cell.

[0092] The above situation (2) is opposite to situation (3). In situation (2), the cell indication information is empty to indicate that the first SSB is the SSB in the serving cell, while in situation (3), the cell indication information is empty to indicate that the first SSB is the SSB in the neighboring cell. Similarly, in situation (2), the cell indication information is not empty to indicate that the first SSB is the SSB in the neighboring cell, while in situation (3), the cell indication information is not empty to indicate that the first SSB is the SSB in the serving cell.

[0093] Optionally, the configuration information also includes:

[0094] The first configuration information is the configuration information of the TCI state of the first signal.

[0095] The second configuration information is configuration information of the path loss measurement reference signal of the first signal.

[0096] The third configuration information is the spatial information of the first signal, wherein the spatial information includes a reference signal and / or a power control parameter of a transmission beam of the uplink signal.

[0097] The fourth configuration information is the configuration information of the SSB set used for channel state information CSI measurement.

[0098] The first configuration information, the second configuration information, the third configuration information and the fourth configuration information are not described in the embodiments of the present application for the time being, and will be described in detail in subsequent embodiments.

[0099] Step 520: The terminal receives configuration information sent by the network device.

[0100] Step 530: The terminal determines the first SSB based on the cell indication information of the first SSB and the first index information of the first SSB.

[0101] When the terminal receives the cell indication information of the first SSB and the first index information of the first SSB, it can determine the first SSB.

[0102] If the terminal determines that the first SSB belongs to the serving cell according to the cell indication information, the first SSB corresponding to the first index information is determined in the serving cell. For example, the first index information includes an SSB index, and the terminal can determine an SSB in the serving cell according to the SSB index. Alternatively, the first index information includes multiple SSB indexes, and the terminal can determine an SSB in the serving cell according to each SSB index, and can determine multiple SSBs in the serving cell according to multiple SSB indexes.

[0103] If the terminal determines that the first SSB belongs to a neighboring cell according to the cell indication information, the first SSB corresponding to the first index information is determined in the neighboring cell according to the first index information. For example, if the first index information includes an SSB index, the terminal can determine an SSB in the neighboring cell according to the SSB index. Alternatively, if the first index information includes multiple SSB indexes, the terminal can determine an SSB in the neighboring cell according to each SSB index, and can determine multiple SSBs in the neighboring cell according to multiple SSB indexes.

[0104] Optionally, before executing step 530, see Figure 6 The method further includes step 550: the terminal receives the neighboring cell configuration information sent by the network device. The neighboring cell configuration information is used to indicate the location of the SSB in the neighboring cell. The terminal can determine the SSB in the neighboring cell according to the neighboring cell configuration information.

[0105] Correspondingly, if the cell indication information indicates that the first SSB is the SSB of a neighboring cell, the SSB of the neighboring cell is determined according to the received neighboring cell configuration information, and the first SSB is determined from the SSBs of the neighboring cell according to the first index information.

[0106] Optionally, the neighboring cell configuration information includes at least one of the PCID of the SSB of the neighboring cell, frequency domain resource information, time domain resource information, subcarrier spacing information, and transmit power information.

[0107] The PCID of the SSB of the neighboring cell is used to indicate the physical cell ID carried in the SSB. The frequency domain resource information is used to indicate the frequency domain resources corresponding to each SSB. The time domain resource information is used to indicate the time domain resources corresponding to each SSB. The subcarrier spacing information is used to indicate the subcarrier spacing used for SSB transmission. The transmission power information is used to indicate the power used by the network device when sending the SSB.

[0108] It should be noted that the embodiment of the present application is only described by taking the example of the terminal determining the SSB of the neighboring cell according to the neighboring cell configuration information. In another embodiment, the terminal may also determine the SSB of the serving cell according to the serving cell configuration information. And the serving cell configuration information is similar to the neighboring cell configuration information, which will not be repeated here.

[0109] Alternatively, in another embodiment, the terminal may also detect the SSB of the serving cell during the random access process of the serving cell, and may determine the SSB of the serving cell without using the serving cell configuration information, thereby reducing the amount of information and further reducing signaling overhead.

[0110] Optionally, the neighbor cell configuration information is a common configuration parameter within a carrier or a BWP.

[0111] In one implementation, when the cell indication information indicates that the first SSB is the SSB of a neighboring cell, the physical resources of the first SSB need to be subject to some constraints. For example, the physical resources of the first SSB do not overlap with the physical resources of the second signal.

[0112] The second signal is a downlink signal configured or scheduled by the network device. The physical resource is used to indicate the resource location, for example, the physical resource includes a time domain resource and a frequency domain resource.

[0113] If the physical resources of the first SSB do not overlap with the physical resources of the second signal, the terminal can receive the first SSB. If the physical resources of the first SSB overlap with the physical resources of the second signal, interference occurs between the first SSB and the second signal, and the terminal cannot receive the first SSB.

[0114] Step 540: The terminal determines the parameters of the first signal or reports the CSI according to the first SSB.

[0115] The first signal may be an uplink signal or a downlink signal. After the terminal determines the first SSB, the terminal can determine the parameters of the first signal according to the first SSB. Alternatively, the terminal can also report the CSI based on the first SSB.

[0116] Optionally, the cell indication information and the first index information corresponding to the first SSB are included in the configuration information of the first signal, and after the first SSB is determined by the configuration information of the first signal, the parameters of the first signal are determined according to the first SSB. Alternatively, the terminal can also report CSI based on the first SSB.

[0117] Optionally, the terminal determines the parameters of the first signal based on the first SSB, including: the terminal determines the large-scale parameters, beam or transmission power of the first signal based on the first SSB.

[0118] Among them, the cell indication information and the first index information corresponding to the first SSB are included in the configuration information of different first signals, and the parameters of the determined first signal are also different.

[0119] Optionally, determining a large-scale parameter, a beam, or a transmit power of the first signal according to the first SSB includes any of the following:

[0120] (1) If the cell indication information and the first index information are included in the first configuration information of the TCI state of the first signal, the large-scale parameter used for receiving the first SSB is used as the large-scale parameter for receiving the first signal; or, the receiving beam used for receiving the first SSB is used as the transmitting beam of the first signal; or, the receiving beam used for receiving the first SSB is used as the receiving beam of the first signal.

[0121] The first signal is an uplink signal, for example, the first signal is PUCCH, PUSCH or SRS.

[0122] Alternatively, the first information is a downlink signal. For example, the first signal is a CSI-RS, a Tracking Reference Signal (TRS), a PDCCH or a PDSCH.

[0123] (2) If the cell indication information and the first index information are included in the second configuration information of the path loss measurement reference signal of the first signal, a path loss estimation value is determined based on the first SSB, and the transmission power of the first signal is determined according to the path loss estimation value.

[0124] The first signal is an uplink signal, for example, the first signal is PUCCH, PUSCH or SRS.

[0125] (3) If the cell indication information and the first index information are included in the third configuration information of the spatial information of the first signal, the receiving beam used to receive the first SSB is used as the transmitting beam of the first signal.

[0126] The first signal is an uplink signal, and the first signal may be PUCCH, PUSCH or SRS.

[0127] (4) If the cell indication information and the first index information are included in the fourth configuration information of the SSB set used for CSI measurement, the CSI is measured based on the first SSB, the second index information and channel quality information included in the CSI are determined, and the CSI is reported.

[0128] Among them, the second index information is the index information of the second SSB in the SSB set, and the channel quality information is the RSRP information or SINR (Signal to Interference plus Noise Ratio) information corresponding to the second SSB.

[0129] The method provided in the embodiment of the present application can indicate whether the first SSB belongs to a service cell or a neighboring cell through the cell indication information of the first SSB, with low signaling overhead, and can also determine the first SSB according to the first index information, and then determine the parameter information of the first signal or perform CSI reporting based on the first SSB, without the need to repeatedly configure the information of the neighboring cell, thereby further reducing the signaling overhead.

[0130] Moreover, the bit position of the cell indication information of the first SSB is only 1 bit, or the cell indication information is empty or not empty to indicate whether the first SSB belongs to the serving cell or the neighboring cell, thereby further reducing the signaling overhead.

[0131] In addition, the terminal can determine the first SSB from the neighboring cell SSBs according to the neighboring cell configuration information, and can uniformly configure the SSBs in the neighboring cells through the neighboring cell configuration information, without the need to configure each SSB separately, thereby reducing signaling overhead.

[0132] exist Figure 5 Based on the embodiment shown, before step 540, see Figure 7 The method further comprises step 560:

[0133] Step 560: Detect or measure the first SSB.

[0134] Detecting the first SSB includes using a certain receiving beam to detect the first SSB on the resources corresponding to the first SSB. Measuring the first SSB includes measuring the RSRP or SINR corresponding to the first SSB.

[0135] In the embodiment of the present application, if the first SSB is the SSB of the neighboring cell, when detecting or measuring the first SSB, the following two situations are included:

[0136] The first type: If the first SSB is the SSB of a neighboring cell, and the physical resources of the first SSB do not overlap with the physical resources of the second signal, the first SSB is detected or measured.

[0137] The second type: If the first SSB is the SSB of a neighboring cell, and the physical resources of the first SSB overlap with the physical resources of the second signal, the receiving beam of the second signal is used to detect or measure the first SSB.

[0138] Alternatively, if the first SSB is the SSB of a neighboring cell and the physical resources of the first SSB overlap with the physical resources of the second signal, the terminal may not detect or measure the first SSB.

[0139] The second signal is a downlink signal configured or scheduled by the network device, for example, the second signal is TRS, CSI-RS, DMRS or PDSCH.

[0140] In addition, the network device sends a first SSB to the terminal, and the terminal can detect or measure the first SSB.

[0141] exist Figure 5 In an embodiment, the cell indication information and the first index information included in the configuration information sent by the integrated network device to the terminal are used to determine the first SSB, and then the large-scale parameters, beam or transmission power of the first signal of the first SSB are used; or, CSI is reported based on the first SSB. The following will take the configuration information including the configuration information of the transmission configuration indication TCI state of the first signal, the configuration information of the path loss measurement reference signal of the first signal, the spatial related information of the first signal, and the configuration information of the SSB set used for channel state information CSI measurement as examples to explain. Figure 5 The process in the embodiment is described in detail.

[0142] Figure 8 FIG. 1 is a flowchart of a SSB determination method provided by an exemplary embodiment of the present application. Figure 3 , the method comprising:

[0143] Step 810: The network device sends first configuration information of the TCI state of the first signal to the terminal.

[0144] Among them, the TCI state is used to indicate the QCL reference signal corresponding to the first signal, and the terminal can receive the first signal based on the QCL reference signal.

[0145] In one implementation, the first signal is an uplink signal, for example, the first signal may be a PUCCH, a PUSCH or an SRS.

[0146] In another implementation, the first signal may also be a downlink signal, for example, the first signal may be a CSI-RS, a TRS, a PDCCH or a PDSCH.

[0147] Optionally, the network device sends first configuration information of the TCI state of the first signal to the terminal via RRC signaling.

[0148] Optionally, the RRC signaling used to configure the first configuration information may be:

[0149]

[0150]

[0151] Among them, ssb-configuration-r17 is used to configure the parameters of the first SSB, including cell indication information PhysicalCell and the first index information SSB-Index.

[0152] Step 820: The terminal receives first configuration information of the TCI state of the first signal sent by the network device.

[0153] Step 830: The terminal determines the first SSB based on the cell indication information and the first index information in the first configuration information.

[0154] Optionally, if the cell indication information indicates that the first SSB is the SSB of a neighboring cell, the terminal determines the SSB of the neighboring cell based on the neighboring cell configuration information, and then determines the first SSB from the SSBs of the neighboring cell based on the first index information.

[0155] The neighboring cell configuration information is sent to the terminal via RRC signaling, and the neighboring cell configuration information, cell indication information, and first index information are configured via different information domains.

[0156] Optionally, the RRC signaling used to configure the neighbor cell configuration information may be:

[0157]

[0158] Among them, physicalCellId-r17 is used to configure the PCID of the neighboring cell SSB, ssb-Freq-r17 is used to configure the frequency domain resources of the neighboring cell SSB, halfFrameIndex-r17, ssb-Periodicity-r17, sfn0-Offset-r17 and sfn-SSB-Offset-r17 are used to configure the time domain resources of the neighboring cell SSB, ssbSubcarrierSpacing-r17 is used to configure the subcarrier spacing of the neighboring cell SSB, and ss-PBCH-BlockPower-r17 is used to configure the transmit power of the neighboring cell SSB.

[0159] In one possible implementation, the terminal determines the physical resources occupied by the SSB of the neighboring cell based on the neighboring cell configuration information, and then determines the physical resources of the first SSB from the physical resources of the SSB of the neighboring cell based on the first index information.

[0160] In another possible implementation, the terminal determines at least one of the physical resources, PCID or transmit power of the first SSB based on the neighboring cell configuration information.

[0161] Optionally, if the cell indication information indicates that the first SSB is the SSB of the serving cell, the terminal determines the first SSB from the SSB of the serving cell based on the first index information.

[0162] Among them, the terminal can detect the SSB of the serving cell during the random access process of the serving cell.

[0163] Optionally, after determining the first SSB, the terminal can also detect or measure the first SSB.

[0164] Step 840: The terminal determines a large-scale parameter or beam of the first signal based on the first SSB.

[0165] The terminal can determine the large-scale parameters or beam of the first signal based on the large-scale parameters or beam of the first SSB.

[0166] Optionally, if the first information is a downlink signal, the terminal uses the large-scale parameter used to receive the first SSB as the large-scale parameter for receiving the first signal.

[0167] The large-scale parameter includes at least one of delay spread, Doppler spread, Doppler frequency shift, average gain, and average delay.

[0168] Optionally, if the first signal is a downlink signal, the terminal will receive the receiving beam used by the first SSB as the receiving beam of the first signal.

[0169] Optionally, if the first signal is an uplink signal, the terminal will receive the receiving beam used by the first SSB as the transmitting beam of the first signal.

[0170] In the embodiment of the present application, the transmission beam may also be referred to as a spatial domain transmission filter (Spatial domain transmission filter or Spatial domain filter for transmission); the reception beam may also be referred to as a spatial domain transmission filter (Spatial domain reception filter or Spatial domain filter for reception).

[0171] The method provided in the embodiment of the present application can indicate whether the first SSB belongs to the service cell or the neighboring cell through the cell indication information in the configuration information of the TCI state of the first signal. The signaling overhead is low, and the first SSB can also be determined according to the first index information. There is no need to repeatedly configure the information of the neighboring cell. The large-scale parameters or receiving beam of the first signal can be determined based on the first SSB, further reducing the signaling overhead.

[0172] Moreover, the bit position of the cell indication information of the first SSB is only 1 bit, or the cell indication information is empty or not empty to indicate whether the first SSB belongs to the serving cell or the neighboring cell, thereby further reducing the signaling overhead.

[0173] In addition, the terminal can determine the first SSB from the neighboring cell SSBs according to the neighboring cell configuration information, and can uniformly configure the SSBs in the neighboring cells through the neighboring cell configuration information, without the need to configure each SSB separately, thereby reducing signaling overhead.

[0174] Fig. 9 FIG. 1 is a flow chart showing a method for determining an SSB according to an exemplary embodiment of the present invention. Fig. 9 , the method comprising:

[0175] Step 910: The network device sends second configuration information of a path loss measurement reference signal of a first signal to a terminal.

[0176] The path loss measurement reference signal is used to measure the path loss value.

[0177] Optionally, the network device sends second configuration information of the path loss measurement reference signal of the first signal to the terminal through RRC signaling.

[0178] Optionally, the first signal is an uplink signal, for example, the first signal may be PUCCH, PUSCH or SRS.

[0179] Optionally, the RRC signaling used to configure the second configuration information may be:

[0180]

[0181] Among them, ssb-configuration-r17 is used to configure the parameters of the first SSB, including the cell indication information PhysicalCell and the first index information SSB-Index of the first SSB. Among them, when PhysicalCell is not configured, it means that the first SSB is the SSB of the serving cell; when PhysicalCell is configured, it means that the first SSB is the SSB of the neighboring cell. SSB-Index is the first index information.

[0182] Step 920: The terminal receives second configuration information of a path loss measurement reference signal of a first signal sent by a network device.

[0183] Step 930: The terminal determines the first SSB based on the cell indication information and the first index information in the second configuration information.

[0184] Among them, step 930 is similar to the above-mentioned step 530 and will not be repeated here.

[0185] Optionally, after determining the first SSB, the terminal can also detect or measure the first SSB.

[0186] Step 940: The terminal determines a path loss estimation value based on the first SSB, and determines the transmission power of the first signal according to the path loss estimation value.

[0187] Optionally, if the cell indication information indicates that the first SSB is the SSB of a neighboring cell, the terminal determines the physical resources and transmit power of the SSB of the neighboring cell according to the neighboring cell configuration information, determines the physical resources and transmit power of the first SSB from the physical resources of the SSB of the neighboring cell according to the first index information, and then measures the RSRP of the first SSB based on the physical resources of the first SSB, determines the path loss estimation value based on the transmit power and RSRP of the first SSB, and then determines the transmit power of the first signal based on the determined path loss estimation value.

[0188] The method provided in the embodiment of the present application can indicate whether the first SSB belongs to the service cell or the neighboring cell through the cell indication information in the configuration information of the path loss measurement reference signal of the first signal. The signaling overhead is low, and the first SSB can also be determined according to the first index information. The transmission power of the first signal can be determined based on the first SSB, and there is no need to repeatedly configure the information of the neighboring cell, which further reduces the signaling overhead.

[0189] Moreover, the bit position of the cell indication information of the first SSB is only 1 bit, or the cell indication information is empty or not empty to indicate whether the first SSB belongs to the serving cell or the neighboring cell, thereby further reducing the signaling overhead.

[0190] In addition, the terminal can determine the first SSB from the neighboring cell SSBs according to the neighboring cell configuration information, and can uniformly configure the SSBs in the neighboring cells through the neighboring cell configuration information, without the need to configure each SSB separately, thereby reducing signaling overhead.

[0191] Fig.10 FIG. 1 is a flow chart showing a method for determining an SSB according to an exemplary embodiment of the present invention. Fig.10 , the method comprising:

[0192] Step 1010: The network device sends third configuration information of space-related information of the first signal to the terminal.

[0193] Step 1020: The terminal receives space-related information of a first signal sent by a network device.

[0194] The spatial related information of the first signal includes a reference signal for determining a transmission beam of the first signal and / or a power control parameter of the first signal. Furthermore, the third configuration information of the spatial related information of the first signal also includes cell indication information and first index information of the first SSB.

[0195] Optionally, the first signal is an uplink signal, for example, the first signal is PUCCH or SRS.

[0196] Optionally, if the first signal is an SRS, the RRC signaling used to indicate the third configuration information may be:

[0197]

[0198] Among them, ssb-configuration-r17 is used to configure the parameters of the first SSB, including the cell indication information PhysicalCell and the first index information SSB-Index of the first SSB. A similar method can also be used for PUCCH.

[0199] Step 1030: The terminal determines the first SSB based on the cell indication information and the first index information in the third configuration information.

[0200] The process of step 1030 is similar to the process of step 530 described above, and will not be repeated here.

[0201] Optionally, when the cell indication information indicates that the first SSB is the SSB of the neighboring cell (i.e., when the PhysicalCell is configured), the terminal determines the physical resources (e.g., time domain resources and frequency domain resources) and PCID of the neighboring cell SSB according to the neighboring cell configuration information, and determines the physical resources of the first SSB from the physical resources of the neighboring cell SSB according to the first index information. Furthermore, the terminal can detect the first SSB based on the physical resources and PCID of the first SSB.

[0202] Step 1040: The terminal uses the receiving beam of the first SSB as the transmitting beam of the first signal.

[0203] After the terminal determines the receiving beam of the first SSB, it can use the receiving beam of the first SSB as the transmitting beam of the first signal, and then send the first signal based on the transmitting beam.

[0204] The method provided in the embodiment of the present application can indicate whether the first SSB belongs to the service cell or the neighboring cell through the cell indication information in the configuration information of the space-related information of the first signal. The signaling overhead is low, and the first SSB can also be determined according to the first index information. Based on the first SSB, the transmission beam of the first signal can be determined, and there is no need to repeatedly configure the information of the neighboring cells, thereby further reducing the signaling overhead.

[0205] Moreover, the bit position of the cell indication information of the first SSB is only 1 bit, or the cell indication information is empty or not empty to indicate whether the first SSB belongs to the serving cell or the neighboring cell, thereby further reducing the signaling overhead.

[0206] In addition, the terminal can determine the first SSB from the neighboring cell SSBs according to the neighboring cell configuration information, and can uniformly configure the SSBs in the neighboring cells through the neighboring cell configuration information, without the need to configure each SSB separately, thereby reducing signaling overhead.

[0207] Fig.11 FIG. 1 is a flow chart showing a method for determining an SSB according to an exemplary embodiment of the present invention. Fig.11 , the method comprising:

[0208] Step 1110: The network device sends fourth configuration information of the SSB set for CSI measurement to the terminal.

[0209] Step 1120: The terminal receives fourth configuration information of the SSB set for CSI measurement sent by the network device.

[0210] Among them, the fourth configuration information includes cell indication information and first index information of the first SSB.

[0211] Optionally, the network device can configure cell indication information for each SSB in the SSB set. Alternatively, the network device can also configure a common cell indication information for the SSB set.

[0212] Optionally, the network device sends fourth configuration information of the SSB set for CSI measurement to the terminal via RRC signaling.

[0213] Optionally, if the network device configures cell indication information for each SSB in the SSB set, the RRC signaling used to indicate the fourth configuration information may be:

[0214]

[0215] Among them, ssb-configuration-r17 is used to configure the parameters of the first SSB, including the cell indication information PhysicalCell and the first index information SSB-Index of the first SSB. Among them, when PhysicalCell is not configured, it means that the first SSB is the SSB of the serving cell; when PhysicalCell is configured, it means that the first SSB is the SSB of the neighboring cell.

[0216] Optionally, if the network device configures a common cell indication information for the SSB set, the RRC signaling used to indicate the fourth configuration information may be:

[0217]

[0218] The configuration information of the SSB set (CSI-SSB-ResourceSet) includes the cell indication information (PhysicalCell) of the first SSB and the first index information (csi-SSB-ResourceList), wherein the cell indication information is used to indicate all SSBs in the SSB set. The first index information csi-SSB-ResourceList is used to indicate a group of SSB indexes.

[0219] Step 1130: The terminal determines the first SSB based on the cell indication information and the first index information in the fourth configuration information.

[0220] The process of step 1130 is similar to the process of step 530 described above, and will not be repeated here.

[0221] Step 1140: The terminal measures the CSI based on the first SSB, determines the second index information and channel quality information included in the CSI, and reports the CSI.

[0222] Among them, the second index information is the index information of the second SSB in the SSB set, and the channel quality information is the RSRP information or SINR information corresponding to the second SSB.

[0223] Optionally, when the first SSB is the SSB set for CSI measurement indicated by the fourth configuration information, the terminal performs RSRP or SINR measurement on the SSBs in the first SSB set, and reports the SSB index and RSRP or SINR information of the SSB with the highest RSRP or SINR in the SSB set to the network device through CSI.

[0224] Optionally, the CSI also includes cell reporting information, and the cell reporting information is used to indicate whether the second SSB belongs to the SSB of the serving cell or the SSB of the neighboring cell.

[0225] Optionally, the terminal receives a first SSB set and a second SSB set for CSI measurement sent by a network device. The first SSB set includes the SSB of the serving cell, and the second SSB set includes the SSB of the neighboring cell. In other words, the content of the cell indication information in the two SSB set configurations is different. The terminal measures the SSBs in the first SSB set and the SSBs in the second SSB set, and reports the cell corresponding to the SSB with the highest RSRP or SINR (i.e., cell reporting information), the SSB index of the SSB (i.e., the second index information), and RSRP (SINR) information (i.e., channel quality information) to the network device through CSI.

[0226] If the terminal determines the second SSB from the first SSB set or the second SSB set, the terminal can determine whether the second SSB belongs to the first SSB set or the second SSB set, and further determine whether the second SSB is the SSB of the serving cell or the SSB of the neighboring cell.

[0227] The method provided in the embodiment of the present application can indicate whether the first SSB belongs to the serving cell or the neighboring cell through the cell indication information in the configuration information of the SSB set for CSI measurement, with low signaling overhead, and can also determine the first SSB according to the first index information, and report CSI based on the first SSB, without the need to repeatedly configure the information of the neighboring cell, further reducing the signaling overhead. At the same time, since an SSB set usually comes from the same physical cell, the overhead can be further reduced by configuring common cell indication information. Since there is only one neighboring cell in incoherent transmission, only one common neighboring cell configuration information needs to be configured, so that the measurement and reporting of RSRP / SINR of the neighboring cell's SSB can be supported with very low signaling overhead, thereby supporting beam management based on the neighboring cell SSB.

[0228] Fig.12 A block diagram of an SSB determination device provided by an exemplary embodiment of the present application is shown, the device comprising:

[0229] The determination module 1201 is configured to determine the first SSB according to the cell indication information of the first synchronization signal block SSB and the first index information of the first SSB;

[0230] The information processing module 1202 is used to determine a large-scale parameter, a beam or a transmit power of the first signal according to the first SSB; or to report CSI based on the first SSB;

[0231] The cell indication information is used to indicate whether the first SSB is the SSB of the serving cell or the SSB of the neighboring cell, and the first index information is used to indicate the first SSB.

[0232] Alternatively, see Fig.13, the device further comprises:

[0233] The receiving module 1203 is used to receive configuration information sent by the network device, where the configuration information includes cell indication information and first index information.

[0234] Optionally, the configuration information also includes:

[0235] First configuration information, where the first configuration information is configuration information of a transmission configuration indication TCI state of the first signal;

[0236] Second configuration information, where the second configuration information is configuration information of a path loss measurement reference signal of the first signal;

[0237] third configuration information, where the third configuration information is space-related information of the first signal, where the space-related information includes a reference signal for determining a transmit beam of the first signal and / or a power control parameter of the first signal;

[0238] The fourth configuration information is the configuration information of the SSB set used for channel state information CSI measurement.

[0239] Optionally, the cell indication information includes 1 bit. If the cell indication information is a first preset value, the first SSB is the SSB of the serving cell. If the cell indication information is a second preset value, the first SSB is the SSB of the neighboring cell. Or,

[0240] If the cell indication information is empty, the first SSB is the serving cell; if the cell indication information is not empty, the first SSB is the neighboring cell; or,

[0241] If the cell indication information is empty, the first SSB is the neighboring cell. If the cell indication information is not empty, the first SSB is the serving cell.

[0242] Optionally, the cell indication information indicates that the first SSB is the SSB of the neighboring cell, and the determination module 1201 is used to determine the SSB of the neighboring cell according to the neighboring cell configuration information, wherein the neighboring cell configuration information is used to indicate the configuration information of the SSB of the neighboring cell;

[0243] The determination module 1201 is also used to determine the first SSB from the SSBs of the neighboring cells according to the first index information.

[0244] Optionally, the neighbor cell configuration information includes at least one of a physical cell identifier PCID of the neighbor cell SSB, frequency domain resource information, time domain resource information, subcarrier spacing information, and transmit power information.

[0245] Optionally, the neighbor cell configuration information is a common configuration parameter in a carrier or a bandwidth part BWP.

[0246] Optionally, the physical resources of the first SSB do not overlap with the physical resources of the second signal, and the second signal is a downlink signal configured or scheduled by the network device.

[0247] Optionally, the cell indication information indicates that the first SSB is the SSB of the serving cell, and the determination module 1201 is used to determine the first SSB from the SSB of the serving cell according to the first index information.

[0248] Alternatively, see Fig.13 , the device further comprises:

[0249] The detection module 1204 is used to detect or measure the first SSB.

[0250] Optionally, the detection module 1204 is used to detect or measure the first SSB if the first SSB is an SSB of a neighboring cell and the physical resources of the first SSB do not overlap with the physical resources of the second signal, and the second signal is a downlink signal configured or scheduled by the network device.

[0251] Optionally, the detection module 1204 is used to detect or measure the first SSB using the receiving beam of the second signal if the first SSB is the SSB of a neighboring cell and the physical resources of the first SSB overlap with the physical resources of the second signal, and the second signal is a downlink signal configured or scheduled by the network device.

[0252] Optionally, the first SSB is an SSB corresponding to the first index information; or,

[0253] The first SSB is an SSB set used for CSI measurement corresponding to the first index information.

[0254] Optionally, the cell indication information and the first index information are included in the first configuration information of the TCI state of the first signal, and the information processing module 1202 is used to:

[0255] Using the large-scale parameter used in receiving the first SSB as the large-scale parameter for receiving the first signal; or,

[0256] Using the receiving beam used for receiving the first SSB as the transmitting beam of the first signal; or,

[0257] The receiving beam used to receive the first SSB is used as the receiving beam of the first signal.

[0258] Optionally, the cell indication information and the first index information are included in the second configuration information of the path loss measurement reference signal of the first signal, and the information processing module 1202 is used to:

[0259] determining a path loss estimate based on the first SSB;

[0260] The transmission power of the first signal is determined according to the estimated path loss value.

[0261] Optionally, the cell indication information and the first index information are included in third configuration information of the spatial information of the first signal, and the information processing module 1202 is configured to:

[0262] The receiving beam used to receive the first SSB is used as the transmitting beam of the first signal.

[0263] Optionally, the cell indication information and the first index information are included in fourth configuration information of the SSB set for CSI measurement, and the information processing module 1202 is configured to:

[0264] Measuring the CSI based on the first SSB, determining the second index information and channel quality information included in the CSI, and reporting the CSI;

[0265] Among them, the second index information is the index information of the second SSB in the SSB set, and the channel quality information is the RSRP information or SINR information corresponding to the second SSB.

[0266] Optionally, the CSI also includes cell reporting information, and the cell reporting information is used to indicate whether the second SSB belongs to the SSB of the serving cell or the SSB of the neighboring cell.

[0267] Alternatively, see Fig.13 , the information processing module 1202 is used to:

[0268] Receive a first SSB configured by a network device for CSI measurement, where the first SSB includes a first SSB set and a second SSB set, where the first SSB set includes an SSB of a serving cell, and the second SSB set includes an SSB of a neighboring cell;

[0269] According to the measurement results of the SSB in the first SSB set and the SSB in the second SSB set, the cell reporting information, the second index information and the channel quality information included in the CSI are determined, so as to report the CSI.

[0270] Fig.14 A block diagram of an SSB determination device provided by an exemplary embodiment of the present application is shown, the device comprising:

[0271] The first sending module 1401 is used to send configuration information to the terminal, where the configuration information includes cell indication information of the first SSB and first index information of the first SSB; the cell indication information is used to indicate whether the first SSB is the SSB of the serving cell or the SSB of the neighboring cell, and the first index information is used to indicate the SSB index of the first SSB;

[0272] The second sending module 1402 is used to send the first SSB to the terminal.

[0273] The terminal is used to determine the first SSB according to the cell indication information and the first index information, and determine the large-scale parameters, beam or transmission power of the first signal according to the first SSB; or, report the CSI based on the first SSB.

[0274] Optionally, the configuration information also includes:

[0275] First configuration information, where the first configuration information is configuration information of a transmission configuration indication TCI state of the first signal;

[0276] Second configuration information, where the second configuration information is configuration information of a path loss measurement reference signal of the first signal;

[0277] third configuration information, where the third configuration information is space-related information of the first signal, where the space-related information includes a reference signal for determining a transmit beam of the first signal and / or a power control parameter of the first signal;

[0278] The fourth configuration information is the configuration information of the SSB set used for channel state information CSI measurement.

[0279] Optionally, the cell indication information includes 1 bit. If the cell indication information is a first preset value, the first SSB is the SSB of the serving cell. If the cell indication information is a second preset value, the first SSB is the SSB of the neighboring cell. Or,

[0280] If the cell indication information is empty, the first SSB is the serving cell; if the cell indication information is not empty, the first SSB is the neighboring cell; or,

[0281] If the cell indication information is empty, the first SSB is the neighboring cell. If the cell indication information is not empty, the first SSB is the serving cell.

[0282] Alternatively, see Fig.15 , the device further comprises:

[0283] The third sending module 1403 is used to send neighboring cell configuration information to the terminal, where the neighboring cell configuration information is used to indicate the configuration information of the SSB of the neighboring cell;

[0284] The terminal is used to determine the SSB of the neighboring cell according to the neighboring cell configuration information, and determine the first SSB from the SSBs of the neighboring cell according to the first index information.

[0285] Optionally, the neighboring cell configuration information includes at least one of the PCID of the neighboring cell SSB, frequency domain resource information, time domain resource information, subcarrier spacing information, and transmit power information.

[0286] Optionally, the neighbor cell configuration information is a common configuration parameter in a carrier or a bandwidth part BWP.

[0287] Optionally, the first SSB is an SSB corresponding to the first index information; or,

[0288] The first SSB is an SSB set used for CSI measurement corresponding to the first index information.

[0289] Fig.16 A schematic diagram of the structure of a communication device provided by an exemplary embodiment of the present application is shown. The communication device includes: a processor 1601, a receiver 1602, a transmitter 1603, a memory 1604 and a bus 1605.

[0290] The processor 1601 includes one or more processing cores. The processor 1601 executes various functional applications and information processing by running software programs and modules.

[0291] The receiver 1602 and the transmitter 1603 may be implemented as a communication component, which may be a communication chip.

[0292] The memory 1604 is connected to the processor 1601 via a bus 1605 .

[0293] The memory 1604 may be used to store at least one instruction, and the processor 1601 may be used to execute the at least one instruction to implement each step in the above method embodiment.

[0294] In addition, the communication device may be a terminal or a network device. The memory 1604 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, and the volatile or non-volatile storage device includes but is not limited to: a magnetic disk or optical disk, an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a static random access memory (SRAM), a read-only memory (ROM), a magnetic memory, a flash memory, and a programmable read-only memory (PROM).

[0295] In an exemplary embodiment, a computer-readable storage medium is also provided, in which executable instructions are stored. The executable instructions are loaded and executed by the processor to implement the SSB determination method performed by the communication device provided by the above-mentioned various method embodiments.

[0296] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0297] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A SSB determination method, characterized in that: Applied to a terminal, the method comprises: Receive RRC signaling sent by a network device, the RRC signaling including: CSI-SSB resource set information CSI-SSB-ResourceSet, the CSI-SSB resource set information including: CSI-SSB resource set ID CSI-SSB-ResourceSetId and CSI-SSB resource list CSI-SSB-ResourceList; the CSI-SSB resource list CSI-SSB-ResourceList includes a set of SSB indexes, wherein each SSB in the SSB set is configured with cell indication information; The CSI-SSB resource set information also includes cell indication information corresponding to each SSB index in the CSI-SSB resource list CSI-SSB-ResourceList, and the cell indication information is used to indicate whether the SSB corresponding to the SSB index is a serving cell SSB or a neighboring cell SSB.

2. The method according to claim 1, characterized in that The method further comprises: Determine the first SSB based on the cell indication information of the first SSB and the first index information of the first SSB.

3. The method according to claim 2, characterized in that The method further comprises: Determine the large-scale parameters, beam or transmit power of the first signal according to the first SSB; or, report CSI based on the first SSB.

4. The method according to claim 3, characterized in that: The RRC signaling also includes configuration information associated with the CSI-SSB resource list CSI-SSB-ResourceList through the SSB index, and the configuration information is used to indicate whether the SSB associated with the configuration information through the SSB index is a serving cell SSB or a neighboring cell SSB.

5. The method according to claim 4, characterized in that The configuration information also includes: first configuration information, where the first configuration information is configuration information of a transmission configuration indication TCI state of the first signal; second configuration information, where the second configuration information is configuration information of a path loss measurement reference signal of the first signal; third configuration information, where the third configuration information is space-related information of the first signal, and the space-related information includes a reference signal for determining a transmit beam of the first signal and / or a power control parameter of the first signal; Fourth configuration information, the fourth configuration information is configuration information of an SSB set used for channel state information CSI measurement.

6. The method according to claim 2, wherein the cell indication information indicates that the first SSB is the SSB of a neighboring cell, The method further comprises: Determine the SSB of the neighboring cell according to the neighboring cell configuration information, wherein the neighboring cell configuration information is used to indicate the configuration information of the SSB of the neighboring cell; According to the first index information, the first SSB is determined from the SSBs of the neighboring cell.

7. The method according to claim 6, characterized in that The neighboring cell configuration information includes at least one of a physical cell identifier PCID of the neighboring cell SSB, frequency domain resource information, time domain resource information, subcarrier spacing information, and transmission power information.

8. The method according to any one of claims 2 to 7, characterized in that: The first SSB is an SSB corresponding to the first index information; or, The first SSB is an SSB set for CSI measurement corresponding to the first index information.

9. The method according to claim 5, characterized in that The cell indication information and the first index information are included in first configuration information of the TCI state of the first signal, and determining a large-scale parameter, a beam, or a transmit power of the first signal according to the first SSB includes: using the large-scale parameter used for receiving the first SSB as the large-scale parameter for receiving the first signal; or, using the receiving beam used for receiving the first SSB as the transmitting beam of the first signal; or, The receiving beam used to receive the first SSB is used as the receiving beam of the first signal.

10. The method according to claim 5, characterized in that The cell indication information and the first index information are included in second configuration information of a path loss measurement reference signal of the first signal, and determining a large-scale parameter, a beam, or a transmit power of the first signal according to the first SSB includes: Determine a path loss estimate based on the first SSB; The transmission power of the first signal is determined according to the path loss estimation value.

11. The method according to claim 5, characterized in that The cell indication information and the first index information are included in third configuration information of the space-related information of the first signal, and the determining of the large-scale parameter, beam or transmit power of the first signal according to the first SSB includes: The receiving beam used to receive the first SSB is used as the transmitting beam of the first signal.

12. The method according to claim 5, characterized in that The cell indication information and the first index information are included in fourth configuration information of an SSB set for CSI measurement, and the reporting of CSI according to the first SSB includes: Measuring the CSI based on the first SSB, determining the second index information and channel quality information included in the CSI, and reporting the CSI; The second index information is the index information of the second SSB in the SSB set, and the channel quality information is the reference signal received power RSRP information or the signal to interference plus noise ratio SINR information corresponding to the second SSB.

13. A method for determining SSB, characterized in that: Applied to a network device, the method comprises: Sending RRC signaling, the RRC signaling including: CSI-SSB resource set information CSI-SSB-ResourceSet, the CSI-SSB resource set information including: CSI-SSB resource set ID CSI-SSB-ResourceSetId and CSI-SSB resource list CSI-SSB-ResourceList; the CSI-SSB resource list CSI-SSB-ResourceList includes a set of SSB indexes, and the network device configures cell indication information for each SSB in the SSB set; The CSI-SSB resource set information also includes cell indication information corresponding to each SSB index in the CSI-SSB resource list CSI-SSB-ResourceList, and the cell indication information is used to indicate whether the SSB corresponding to the SSB index is a serving cell SSB or a neighboring cell SSB.

14. The method according to claim 13, characterized in that The method further comprises: Send configuration information, wherein the configuration information includes cell indication information of the first SSB and first index information of the first SSB, wherein the cell indication information is used to indicate whether the first SSB is the SSB of the serving cell or the SSB of the neighboring cell.

15. The method according to claim 14, characterized in that: The RRC signaling also includes configuration information associated with the CSI-SSB resource list CSI-SSB-ResourceList through the SSB index, and the configuration information is used to indicate whether the SSB associated with the configuration information through the SSB index is a serving cell SSB or a neighboring cell SSB.

16. The method according to claim 15, characterized in that The configuration information also includes: First configuration information, where the first configuration information is configuration information of a transmission configuration indication TCI state of a first signal; second configuration information, where the second configuration information is configuration information of a path loss measurement reference signal of the first signal; third configuration information, where the third configuration information is space-related information of the first signal, and the space-related information includes a reference signal for determining a transmit beam of the first signal and / or a power control parameter of the first signal; Fourth configuration information, the fourth configuration information is configuration information of an SSB set used for channel state information CSI measurement.

17. The method according to claim 14, wherein the cell indication information indicates that the first SSB is an SSB of a neighboring cell, The method further comprises: Send neighboring cell configuration information, where the neighboring cell configuration information is used to indicate the configuration information of the SSB of the neighboring cell.

18. The method according to claim 17, characterized in that The neighboring cell configuration information includes at least one of a physical cell identifier PCID of the neighboring cell SSB, frequency domain resource information, time domain resource information, subcarrier spacing information, and transmission power information.

19. The method according to any one of claims 14 to 18, characterized in that The first SSB is an SSB corresponding to the first index information; or, The first SSB is an SSB set for CSI measurement corresponding to the first index information.

20. A terminal, characterized in that: The terminal comprises: processor; a transceiver connected to the processor; a memory for storing executable instructions for the processor; The processor is configured to load and execute the executable instructions to implement the SSB determination method as described in any one of claims 1 to 12.

21. A network device, characterized in that: The network equipment includes: processor; a transceiver connected to the processor; a memory for storing executable instructions for the processor; Wherein, the processor is configured to load and execute the executable instructions to implement the SSB determination method described in any one of claims 13 to 19.

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