Communication method and device

Abstract

The present application provides a communication method and apparatus, which enables a receiving end to accurately determine the time domain position of a CSI-RS. The method includes: a second network device receives configuration information corresponding to at least one first reference signal and configuration information corresponding to at least one synchronization signal block from a first network device, wherein the at least one synchronization signal block is a synchronization signal block corresponding to a synchronization signal block frequency point; the second network device determines the timing information of the at least one first reference signal according to the timing information of the reference synchronization signal block, wherein the reference synchronization signal block belongs to the at least one synchronization signal block.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a communication method and device. Background Art

[0002] The 5G system can support measurements based on two signals, including the synchronization signal / physical broadcast channel block (SS (synchronization signal) / PBCH Block, SSB) and the channel state information-reference signal (CSI-RS).

[0003] SSB may include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a physical broadcast channel (PBCH), and a PBCH demodulation reference signal (DMRS) required for demodulating the PBCH. Among them, PSS and SSS may be used for downlink synchronization of terminal devices, such as clock synchronization, frame synchronization, and symbol synchronization.

[0004] Currently, SSB and CSI-RS related information can be exchanged between network devices. However, how the receiving network device determines the accurate time domain position of the CSI-RS resource is an urgent problem to be solved. Summary of the invention

[0005] In view of this, an embodiment of the present application provides a communication method and device. The present application provides a communication method and device, which enables the receiving end to accurately determine the time domain position of the reference signal (such as CSI-RS), and further, can effectively configure the terminal device it serves to perform measurements at the air interface.

[0006] The embodiments of the present application provide a communication method and apparatus, which determine the timing information of a first reference signal by referring to the timing information of a synchronization signal block, so that a receiving end can accurately determine the time domain position of the first reference signal.

[0007] In a first aspect, a communication method is provided. The communication method may be executed by a second network device, or may be executed by a chip or circuit disposed in the second network device, and the embodiments of the present application are not limited to this.

[0008] Taking the communication method being performed by the second network device as an example, the communication method may include:

[0009] The second network device receives configuration information corresponding to at least one first reference signal and configuration information corresponding to at least one synchronization signal block from the first network device, wherein the at least one synchronization signal block is a synchronization signal block corresponding to a synchronization signal block frequency point;

[0010] The second network device determines the timing information of the first reference signal according to the timing information of the reference synchronization signal block.

[0011] It can be understood that the reference synchronization signal block is one of the at least one synchronization signal block mentioned above.

[0012] According to the communication method provided in the embodiment of the present application, the second network device can accurately obtain the time domain occurrence time of the first reference signal (e.g., CSI-RS) based on the timing information of the reference synchronization signal block, thereby improving communication efficiency. Furthermore, the second network device can accurately and effectively configure the user equipment to perform CSI-RS measurement at the air interface, thereby improving measurement accuracy, which serves as the basis for terminal device mobility (including cell reselection, switching, etc.).

[0013] In some implementations of the first aspect, the second network device obtains the Xth SSB or the SSB corresponding to a fixed frequency point as a reference SSB according to the protocol agreement or pre-configuration, where X represents a fixed sequence number in at least one synchronization signal block, such as the number in sequence.

[0014] In some implementations of the first aspect, the second network device may determine the reference synchronization signal block based on first indication information sent by the first network device, wherein the first indication information indicates frequency information corresponding to the reference synchronization signal block or indicates an identifier corresponding to the reference synchronization signal block.

[0015] In some implementations of the first aspect, the second network device may determine the reference synchronization signal block according to the second indication information sent by the first network device, wherein the second indication information is used to determine the synchronization status of all synchronization signal blocks in at least one synchronization signal block. For example, in the case where all synchronization signal blocks in at least one synchronization signal block are determined to be synchronized according to the second indication information, the second network device may determine the reference synchronization signal block to be any one synchronization signal block in at least one synchronization signal block; for another example, in the case where all synchronization signal blocks in at least one synchronization signal block are determined to be asynchronous according to the second indication information, the second network device determines the reference synchronization signal block to be a synchronization signal block corresponding to a fixed frequency point or the reference synchronization signal block to be a signal block corresponding to a fixed sequence number in the at least one synchronization signal block.

[0016] The above-mentioned first indication information and second indication information can be classified as information used to indicate a reference synchronization signal block.

[0017] In some implementations of the first aspect, when the second network device receives configuration information of SSBs corresponding to multiple frequency points, it may default to the multiple SSBs being synchronized according to regulations, and may use any SSB as a reference SSB or determine a synchronization signal block corresponding to a fixed frequency point or a synchronization signal block corresponding to a fixed sequence number as a reference SSB.

[0018] In some implementations of the first aspect, the second network device may also receive SSBindex information from the first network device, so as to determine the timing information of the CSI-RS with reference to the timing of the SSB corresponding to the SSB index in the reference SSB. The SSB index information may be in the same message or in different messages as the configuration information corresponding to at least one first reference signal or the configuration information corresponding to at least one synchronization signal block.

[0019] In the above implementation, the second network device can clearly know which synchronization signal block in at least one synchronization signal block is used as the reference synchronization signal block, so that subsequent processing can be performed based on the reference synchronization signal block, for example, the second network device can accurately determine the time domain position of the reference signal (such as CSI-RS), and further, it can effectively configure the terminal device it serves to perform measurements at the air interface.

[0020] In a second aspect, a communication method is provided. The communication method may be executed by a first network device, or may be executed by a chip or circuit disposed in the first network device, and the embodiments of the present application are not limited to this.

[0021] Taking the communication method being performed by the first network device as an example, the communication method may include:

[0022] The first network device determines a reference synchronization signal block in at least one synchronization signal block, wherein the at least one synchronization signal block is a synchronization signal block corresponding to a synchronization signal block frequency point;

[0023] The first network device sends configuration information corresponding to at least one first reference signal and configuration information corresponding to at least one synchronization signal block to the second network device, wherein the configuration information corresponding to the at least one first reference signal is determined based on the timing of the reference synchronization signal block.

[0024] In some implementations of the second aspect, the first network device determines the Xth SSB or the SSB corresponding to a fixed frequency point as a reference SSB according to a protocol agreement or pre-configuration, where X represents a fixed sequence number in at least one synchronization signal block, such as the number in sequence.

[0025] In some implementations of the second aspect, the first network device may determine the reference synchronization signal block according to certain rules or requirements.

[0026] In some implementations of the second aspect, the first network device may send first indication information to the second network device, wherein the first indication information indicates frequency information corresponding to the reference synchronization signal block or indicates an identifier corresponding to the reference synchronization signal block.

[0027] In some implementations of the second aspect, the first network device may send second indication information to the second network device, wherein the second indication information is used to determine the synchronization status of all synchronization signal blocks in at least one synchronization signal block, so that the second network device can determine the reference synchronization signal block through the indication of the synchronization status.

[0028] The above-mentioned first indication information and second indication information can be classified as information used to indicate a reference synchronization signal block.

[0029] In some implementations of the second aspect, when there is configuration information of SSBs corresponding to multiple frequency points, it can be assumed that the multiple SSBs are synchronized, and any SSB can be used as a reference SSB, or a synchronization signal block corresponding to a fixed frequency point or a synchronization signal block corresponding to a fixed sequence number can be determined as a reference SSB.

[0030] In some implementations of the second aspect, the first network device may further send SSBindex information to the second network device, so as to determine the timing information of the CSI-RS with reference to the timing of the SSB corresponding to the SSB index in the reference SSB. The SSB index information may be in the same message or in different messages as the configuration information corresponding to at least one first reference signal or the configuration information corresponding to at least one synchronization signal block.

[0031] In some implementations of the first aspect or the second aspect, configuration information corresponding to at least one first reference signal and configuration information corresponding to at least one synchronization signal block may be carried in the same message or different messages.

[0032] According to a third aspect, a communication device is provided, which includes a module, a unit or a component for implementing the communication method according to the first aspect.

[0033] According to a fourth aspect, a communication device is provided, which includes a module, a unit or a component for implementing the communication method according to the second aspect.

[0034] According to a fifth aspect, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a communication device, the communication device implements the method in the first aspect and any possible implementation manner of the first aspect.

[0035] In a sixth aspect, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a communication device, the communication device implements the method in the second aspect and any possible implementation manner of the second aspect.

[0036] In a seventh aspect, a computer program product comprising instructions is provided, wherein when the instructions are executed by a computer, a communication device implements the method in the first aspect and any possible implementation manner of the first aspect.

[0037] In an eighth aspect, a computer program product comprising instructions is provided, wherein when the instructions are executed by a computer, a communication device implements the method in the second aspect and any possible implementation manner of the second aspect.

[0038] In a ninth aspect, a communication system is provided, comprising the communication device described in the third aspect and the communication device described in the fourth aspect. Optionally, the communication system may also include a terminal device that interacts with the communication device described in the third aspect or interacts with the communication device described in the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of an application scenario of an embodiment of the present application.

[0040] Figure 2 It is a schematic diagram of a communication method according to an embodiment of the present application.

[0041] Figure 3 It is a schematic diagram of a communication method according to another embodiment of the present application.

[0042] Figure 4 It is a schematic diagram of a communication method according to another embodiment of the present application.

[0043] Figure 5 Schematic diagram of a device according to an embodiment of the present application.

[0044] Figure 6 It is a schematic diagram of a device according to another embodiment of the present application.

[0045] Figure 7 It is a schematic diagram of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0046] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0047] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, future fifth generation (5G) system, new radio (NR) or future network, etc. The 5G mobile communication system described in the present application includes a non-standalone (NSA) 5G mobile communication system or a standalone (SA) 5G mobile communication system. The technical solutions provided in the present application can also be applied to future communication systems, such as the sixth generation mobile communication system. The communication system may also be a public land mobile network (PLMN) network, a device-to-device (D2D) communication system, a machine-to-machine (M2M) communication system, an Internet of Things (IoT) communication system or other communication systems.

[0048] The terminal equipment in the embodiments of the present application may refer to an access terminal, a user unit, a user station, a mobile station, a mobile station, a relay station, a remote station, a remote terminal, a mobile device, a user terminal, a user equipment (UE), a terminal, a wireless communication device, a user agent or a user device. The terminal equipment may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (PLMN) or a terminal device in a future Internet of Vehicles, etc., and the embodiments of the present application are not limited to this.

[0049] As an example and not a limitation, in the embodiments of the present application, wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and independent of smartphones to achieve complete or partial functions, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0050] In addition, in the embodiment of the present application, the terminal device can also be a terminal device in an IoT system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection. In the embodiment of the present application, IOT technology can achieve massive connections, deep coverage, and terminal power saving through, for example, narrow band (NB) technology.

[0051] In addition, in an embodiment of the present application, the terminal device may also include sensors such as smart printers, train detectors, and gas stations. Its main functions include collecting data (partial terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.

[0052] The network device in the embodiment of the present application can be any communication device with wireless transceiver function for communicating with the terminal device. The device includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home evolved NodeB (HeNB, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (WIFI) system, wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc., and can also be a 5G system, such as gNB in ​​NR system, or transmission point (TRP or TP), one or a group of (including multiple antenna panels) antenna panels of a base station in 5G system, or, it can also be a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (DU), etc. The network device in the embodiment of the present application may also be referred to as an access network device.

[0053] In some deployments, the network device in the embodiments of the present application may refer to a centralized unit (CU) or a distributed unit (DU), or the network device includes a CU and a DU. The gNB may also include an active antenna unit (AAU). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. The AAU implements some physical layer processing functions, radio frequency processing, and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU, or by the DU+AAU. It is understandable that the network device may be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU may be classified as a network device in an access network (radio access network, RAN), or the CU may be classified as a network device in a core network (core network, CN), which is not limited in this application.

[0054] Further, the CU can also be divided into a central unit of the control plane (CU-CP) and a central unit of the user plane (CU-UP). Among them, the CU-CP and the CU-UP can also be deployed on different physical devices. The CU-CP is responsible for the control plane function, mainly including the RRC layer and the PDCP-C layer. The PDCP-C layer is mainly responsible for the encryption and decryption, integrity protection, data transmission, etc. of the control plane data. The CU-UP is responsible for the user plane function, mainly including the SDAP layer and the PDCP-U layer. Among them, the SDAP layer is mainly responsible for processing the data of the core network and mapping the flow to the bearer. The PDCP-U layer is mainly responsible for at least one function of encryption and decryption, integrity protection, header compression, sequence number maintenance, and data transmission of the data plane. Specifically, the CU-CP and the CU-UP are connected through a communication interface (e.g., an E1 interface). The CU-CP represents the network device and is connected to the core network device through a communication interface (e.g., an Ng interface), and is connected to the DU through a communication interface (e.g., an F1-C (control plane) interface). The CU-UP is connected to the DU through a communication interface (e.g., an F1-U (user plane) interface).

[0055] There is another possible implementation, where the PDCP-C layer is also included in the CU-UP.

[0056] It can be understood that the above protocol layer divisions of CU and DU, and CU-CP and CU-UP are only examples, and there may be other division methods, which are not limited in the embodiments of the present application.

[0057] The network device mentioned in the embodiments of the present application may be a device including a CU, or a DU, or a device including a CU and a DU, or a device including a control plane CU node (CU-CP node) and a user plane CU node (CU-UP node) and a DU node.

[0058] The network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons and satellites in the air. The embodiments of the present application do not limit the scenarios in which the network equipment and terminal equipment are located.

[0059] In an embodiment of the present application, a terminal device or a network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through processes, such as Linux operating system, Unix operating system, Android operating system, iOS operating system, or Windows operating system. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software.

[0060] Figure 1 1 is a schematic diagram of the architecture of a wireless communication system 100 to which the embodiments of the present application can be applied. Figure 1 As shown, the wireless communication system 100 may include one or more network devices 110 , one or more terminal devices 120 , and a core network 130 .

[0061] The network device 110 may be used to communicate with one or more terminal devices 120, or may be used to communicate with one or more base stations having some terminal device functions. Figure 1 Under the control of the core network 130 (not shown), the network device controller communicates with the terminal device 120 through one or more antennas. The network device controller may be part of the core network 130 or may be integrated into the network device 110. Optionally, the network device 110 transmits control information or user data to the core network 130. Furthermore, the network devices 110 may also communicate directly or indirectly with each other.

[0062] In an embodiment of the present application, network devices may exchange SSB-related information and CSI-RS-related information, for example, a first network device and a second network device may exchange SSB-related information and CSI-RS-related information. The interaction between the first network device and the second network device may include the first network device sending SSB-related information and CSI-RS-related information to the second network device, or may include the second network device sending SSB-related information and CSI-RS-related information to the first network device. For example, when the two network devices are base stations or CUs, the two network devices may exchange SSB-related information and CSI-RS-related information through an X2 or Xn interface; when the first network device is a DU and the second network device is a CU, or when the first network device is a CU and the second network device is a DU, the two network devices exchange SSB-related information and CSI-RS-related information through an F1 interface.

[0063] It should be noted that SSB and CSI-RS are sent through one or more beams. A beam can be understood as a spatial resource, and can refer to a transmit or receive precoding vector with energy transmission directivity. In addition, the transmit or receive precoding vector can be identified by index information, and the index information can correspond to the resource identifier (identity, ID) of the configured terminal. For example, the index information can correspond to the identifier or resource of the configured CSI-RS; it can also be the identifier or resource of the corresponding configured SSB; it can also be the identifier or resource of the corresponding configured uplink sounding reference signal (SRS). Optionally, the index information can also be index information displayed or implicitly carried by the signal or channel carried by the beam. The energy transmission directivity can refer to the precoding processing of the signal to be sent by the precoding vector, and the signal processed by the precoding has a certain spatial directivity, and the signal received after the precoding processing by the precoding vector has a better receiving power, such as satisfying the receiving demodulation signal-to-noise ratio; the energy transmission directivity can also refer to the same signal sent from different spatial positions received by the precoding vector with different receiving powers.

[0064] Optionally, the same communication device (such as a terminal device or a network device) can have different precoding vectors, and different devices can also have different precoding vectors, that is, corresponding to different beams. According to the configuration or capability of the communication device, a communication device can use one or more of a plurality of different precoding vectors at the same time, that is, can form one beam or multiple beams at the same time.

[0065] The above-mentioned SSB related information may include but is not limited to at least one of the following: SSB frequency information (e.g., carrierFreq), SSB subcarrier spacing (ssbSubcarrierSpacing), SSB measurement timing configuration (e.g., ssb-MeasurementTimingConfiguration), and SSB corresponding physical cell ID (physical cell ID, PCI). The SSB related information may also be referred to as SSB configuration information or SSB resource information, or may also be referred to as SSB corresponding configuration information, etc., which is not limited in the embodiments of the present application.

[0066] The above-mentioned CSI-RS related information may include but is not limited to at least one of the following: CSI-RS index, CSI-RS subcarrier spacing, CSI-RS periodicity and offset, CSI-RS occupied frequency domain position, CSI-RS sequence scrambling sequence. The CSI-RS related information may also be referred to as CSI-RS configuration information or CSI-RS resource information, or may also be referred to as CSI-RS corresponding configuration information, which is not limited in the embodiments of the present application. Among them, the above-mentioned offset and period can be used to determine part of the time domain information of the CSI-RS, for example, it can be used to determine which subframe the CSI-RS starts from in the time domain.

[0067] The inventor of the present application discovered that, since the CSI-RS itself does not have a synchronization function, if the above-mentioned CSI-RS related information is exchanged between network devices, there will be a situation where the network device as the receiving party does not know the accurate time domain position of the CSI-RS after receiving the CSI-RS. Therefore, in some possible implementations of the embodiments of the present application, the above-mentioned CSI-RS related information may also include information for determining the timing information of the CSI-RS. It can be understood that in some other implementations of the embodiments of the present application, it is also possible not to exchange information for determining the timing information of the CSI-RS between network devices, for example, the determination of the timing information of the CSI-RS is achieved through protocol agreement or pre-configuration or other methods. The embodiments below describe different implementations in conjunction with the accompanying drawings.

[0068] like Figure 2 As shown, an embodiment of the present application provides a communication method, which may include:

[0069] S201, a first network device determines a reference synchronization signal block SSB in at least one synchronization signal block.

[0070] In this embodiment, the Xth SSB (i.e., the synchronization signal block corresponding to the fixed sequence number in at least one synchronization signal block) can be used as a reference SSB through protocol agreement or pre-configuration, and the first network device uses the Xth SSB as the reference SSB. For example, assuming that the first network device is about to send or has sent configuration information of SSBs corresponding to frequency points 1, 2, and 3 to the second network device, and X is 1, then the first network device determines the first SSB (i.e., the synchronization signal block corresponding to frequency point 1) as the reference SSB. It can be understood that X can also be other values, which are not limited in this embodiment of the present application.

[0071] Alternatively, the SSB corresponding to the fixed frequency point may be determined as the reference SSB through protocol agreement or pre-configuration, and the first network device uses the SSB corresponding to the fixed frequency point as the reference SSB. For example, assuming that the first network device is about to send or has sent configuration information of SSBs corresponding to frequency points 1, 2, and 3 to the second network device, and the fixed frequency point agreed upon or pre-configured by the protocol is frequency point 2, then the first network device determines that the SSB corresponding to frequency point 2 is the reference SSB.

[0072] Among them, a possible pre-configuration implementation method may be: the core network device sends the information of the reference synchronization signal block to the first network device and the second network device.

[0073] S202, the first network device sends configuration information corresponding to at least one SSB to the second network device.

[0074] Correspondingly, the second network device will receive the configuration information corresponding to the at least one SSB sent by the first network device, so that it can perform corresponding processing, such as performing relevant configuration on the terminal device under the second network device. The embodiment of the present application does not limit the subsequent processing of the configuration information corresponding to the at least one SSB received by the second network device.

[0075] As mentioned above, the configuration information corresponding to the SSB may also be referred to as the configuration information of the SSB or the related information of the SSB, etc. The content of the configuration information corresponding to the SSB is not repeated here. It can be understood that the above-mentioned at least one SSB corresponds to at least one frequency point, and the at least one frequency point may include at least one of the frequency points corresponding to the cell managed by the first network device and the neighboring cell of the cell managed by the first network device (the neighboring cell may be a cell managed by other network devices).

[0076] The configuration information corresponding to the at least one SSB may be transmitted through interactive information between network devices, and the interactive information may be, for example, measurement timing configuration (MeasurementTimingConfiguration) information. The MeasurementTimingConfiguration information may include, for example, the following cell structure:

[0077]

[0078] Among them, MeasTimingList (measurement timing list) includes configuration information corresponding to at least one SSB.

[0079] It is understandable that the above cell structure is only an example, and the embodiment of the present application does not limit the cell structure and message carrier for sending the configuration information corresponding to the at least one SSB. In addition, the above cell structure is for illustrative purposes, and the names of the various information in the cell structure in the embodiment of the present application are not introduced one by one.

[0080] In addition, the embodiment of the present application does not limit the execution order of S201 and S202, that is, S202 can be executed before or after S201, or S201 and S202 can also be executed at the same time.

[0081] S203: The first network device sends configuration information corresponding to at least one CSI-RS to the second network device.

[0082] Here, CSI-RS is an example of a first reference signal. It is understandable that the first reference signal may also be other reference signals, and the embodiments of the present application do not limit this. In addition, the embodiments of the present application are not limited to reference signals, but may be other signals, as long as there are signals with similar problems to the CSI-RS in the embodiments of the present application.

[0083] The second network device will receive the configuration information corresponding to the at least one CSI-RS sent by the first network device, so that it can perform corresponding processing, such as performing relevant configuration on the terminal device under the second network device. The embodiment of the present application does not limit the subsequent processing of the configuration information corresponding to the at least one received CSI-RS by the second network device.

[0084] As mentioned above, the configuration information corresponding to the CSI-RS may also be referred to as the configuration information of the CSI-RS or the related information of the CSI-RS, etc., and the content of the configuration information corresponding to the CSI-RS is not repeated here. The configuration information corresponding to the at least one CSI-RS may include at least one of the CSI-RS configuration information corresponding to the cell managed by the first network device and the CSI-RS configuration information sent by the neighboring cell of the cell managed by the first network device.

[0085] The configuration information corresponding to the at least one CSI-RS may also be transmitted through interactive information between network devices. For example, the configuration information corresponding to the at least one CSI-RS may be sent through a message that is the same as or different from the message that sends the configuration information corresponding to the at least one SSB.

[0086] When the configuration information corresponding to the at least one CSI-RS is sent through the same message as the configuration information corresponding to the at least one SSB, in a possible implementation, the configuration information corresponding to the at least one CSI-RS may also be carried in MeasurementTimingConfiguration.

[0087] The configuration information of the at least one CSI-RS is determined based on the timing information of the reference SSB. For example, the offset in the configuration information of the CSI-RS can be determined based on the timing of the reference SSB.

[0088] It should be noted that the timing based on the reference SSB can be understood as the timing based on the cell corresponding to the reference SSB.

[0089] Correspondingly, the configuration information of the at least one CSI-RS is determined based on the timing information of the reference SSB, or it can be said that the configuration information of the at least one CSI-RS is determined based on the timing information of the cell corresponding to the reference SSB. For example, the reference cell is determined based on the frequency of the reference SSB and the cell identification information, and the timing information of the reference cell (for example, it may include the frame number, subframe number, etc.) is used as a reference to determine the time domain position of the CSI-RS (for example, the offset mentioned above). The aforementioned cell identification information may include a physical cell identifier (physical cell id, PCI) and / or a cell global identifier (cell globalid, CGI), and the cell identification information may be directly carried in the same message as the CSI-RS configuration information, for example, in a Container (container) for interaction through the X2 / Xn / F1 interface, or the cell identification information may be carried in the message of the Container carrying the CSI-RS configuration on the X2 / Xn / F1 interface (that is, carried outside the Container instead of inside the Container). As an example, the periodicity and offset in the CSI-RS configuration information determine that the CSI-RS configuration information will appear in the Nth subframe of the Mth frame. When the CSI-RS configuration information uses the first cell (the cell corresponding to the reference SSB) as the reference cell, the Nth subframe of the M frame refers to the Nth subframe of the Mth frame of the first cell.

[0090] In the embodiment of the present application, the execution order of S202 and S203 is not limited, that is, S202 and S203 can be executed at the same time, or S202 can be executed before or after S203.

[0091] S204: The second network device determines the timing information of the at least one CSI-RS according to the timing information of the reference SSB.

[0092] Among them, the timing information of SSB refers to the timing information of the cell corresponding to the SSB, and the timing information may include but is not limited to at least one of the following: frame number, subframe number, and frame boundary information.

[0093] According to the agreement of the protocol or pre-configuration, the second network device learns to use the Xth SSB or the SSB corresponding to the fixed frequency point as the reference SSB, thereby determining the timing information of the at least one CSI-RS according to the timing information of the reference SSB.

[0094] After the second network device determines the timing information of the at least one CSI-RS based on the timing information of the reference SSB, subsequent processing can be performed, for example, configuring the terminal device served by the second network device to perform corresponding CSI-RS measurements.

[0095] It should be noted that determining the timing information of the CSI-RS based on the timing information of the reference SSB can also be understood as determining the timing information of the CSI-RS based on the timing information of the cell corresponding to the reference SSB. For example, the time domain position of the reference signal CSI-RS is determined by referring to the timing information of the cell (including frame number, subframe number, etc.), or, in other words, according to the configuration of the reference signal CSI-RS, it can be determined in which subframes of the cell the reference signal CSI-RS appears.

[0096] In an embodiment of the present application, a synchronization signal block corresponding to a fixed frequency point or a synchronization signal block corresponding to a fixed sequence number in at least one synchronization signal block is pre-configured as a reference synchronization signal block to serve as a basis for determining the timing information of at least one CSI-RS, so that the time domain occurrence time of the CSI-RS can be accurately known, thereby improving communication efficiency. Furthermore, the second network device can accurately and effectively configure the user equipment at the air interface to perform CSI-RS measurement, thereby improving measurement accuracy, which serves as the basis for terminal device mobility (including cell reselection, switching, etc.).

[0097] Another embodiment of the present application provides a communication method, Figure 2 The difference between the communication method shown in FIG. 1 and FIG. 2 is that in the communication method, the reference synchronization signal block may not be pre-agreed or configured, but the second network device may determine the reference synchronization signal block through the instruction of the first network device, such as Figure 3 As shown, the communication method may include:

[0098] S301, a first network device determines a reference synchronization signal block SSB in at least one synchronization signal block.

[0099] Among them, the first network device can determine the reference SSB in the at least one synchronization signal block according to certain rules or requirements or randomly. One possible way may be: the first network device may select CD-SSB as the reference SSB. Among them, CD-SSB refers to the SSB associated with the remaining minimum system information (RMSI). CD-SSB can also be understood as an SSB associated with SIB1. CD-SSB can be used for residence, or for the main cell configuration of the terminal device.

[0100] S302, the first network device sends configuration information corresponding to at least one SSB to the second network device.

[0101] Among them, the specific description of S302 can refer to the relevant description of S202, which will not be repeated here.

[0102] S303: The first network device sends configuration information corresponding to at least one CSI-RS to the second network device.

[0103] Among them, the specific description of S303 can refer to the relevant description of S203, which will not be repeated here.

[0104] S304, the first network device sends first indication information to the second network device, wherein the first indication information is used by the second network device to determine a reference SSB.

[0105] Correspondingly, after receiving the first indication information, the second network device can determine the reference SSB.

[0106] Among them, the first indication information can indicate the frequency information corresponding to the reference SSB or indicate the identifier (also called serial number) corresponding to the reference SSB.

[0107] In one possible implementation, the first indication information indicates the frequency information corresponding to the reference SSB, and the first indication information may carry the frequency information corresponding to the reference SSB. For example, the frequencies corresponding to the above at least one SSB are frequency 1, frequency 2 and frequency 3, and the first indication information may carry the information of frequency 2. Then the second network device may know that the reference SSB is the SSB corresponding to frequency 2.

[0108] In another possible manner, the first indication information indicates that the frequency point information corresponding to the reference SSB may be carried in the configuration information of each SSB to indicate whether the SSB can be used as a reference SSB. That is to say, the configuration information of the SSB at each frequency level indicates whether the SSB can be used as a reference SSB. For example, assuming that there is configuration information of the SSB corresponding to frequency point 1, configuration information of the SSB corresponding to frequency point 2, and configuration information of the SSB corresponding to frequency point 3, then the configuration information of the SSB corresponding to frequency point 1 can indicate that the SSB can be used as a reference SSB, and the configuration information of the SSB corresponding to the other two frequencies indicates that the SSB is not used as a reference SSB, then the second network device can know that the SSB corresponding to frequency point 1 is a reference SSB. The embodiment of the present application does not limit how to indicate whether a certain SSB is used as a reference SSB, for example, it is implemented by at least one bit of information or field, when the field is "1" or "TRUE", it indicates that it is used as a reference SSB, and when the field is "0" or "FALSE", it indicates that it is not used as a reference SSB. Alternatively, when there is corresponding indication information only in the configuration information of the reference SSB, and the configuration information of the SSB that is not used as a reference SSB does not carry relevant indication, it is defaulted to indicate that it is not used as a reference SSB. Alternatively, the configuration information of the SSB that is not used as a reference SSB carries relevant indication, while the configuration information of the reference SSB does not carry relevant indication.

[0109] In a possible implementation, the identifier corresponding to the reference SSB may be a digital identifier, indicating which SSB in the at least one SSB is used as the reference SSB. The identifier may start from 0, that is, the SSB corresponding to identifier 0 is the first SSB, and so on, or the identifier may start from 1, that is, the SSB corresponding to identifier 1 is the first SSB. And so on. It is understandable that the identifier may also start from other numerical values, as long as the second network device knows which SSB in the at least one SSB is used as the reference SSB, and the embodiments of the present application are not limited to this.

[0110] It should be noted that the first indication information can be sent in the same or different message as the configuration information corresponding to the at least one SSB, or the first indication information can also be sent in the same or different message as the configuration information corresponding to the at least one CSI-RS. In addition, S304 can be executed before, after or simultaneously with S302 or S303, which is not limited in this embodiment of the present application.

[0111] S305, the second network device determines the timing information of the at least one CSI-RS according to the timing information of the reference SSB.

[0112] After receiving the first indication information, the second network device determines that the timing information of the at least one CSI-RS needs to be determined based on the timing information of the reference SSB. The second network device can determine the reference SSB based on the indication of the first indication information, thereby determining the timing information of the at least one CSI-RS based on the timing information of the reference SSB.

[0113] The specific description of S305 can further refer to the relevant description of S204, which will not be repeated here.

[0114] In an embodiment of the present application, the reference SSB is indicated by the first indication information, so that the second network device can obtain the reference SSB for determining the timing of the CSI-RS, thereby being able to accurately obtain the time domain occurrence time of the CSI-RS, thereby improving communication efficiency. Furthermore, the second network device can accurately and effectively configure the user equipment at the air interface to perform CSI-RS measurement, thereby improving measurement accuracy, which serves as the basis for terminal device mobility (including cell reselection, switching, etc.).

[0115] Another embodiment of the present application also provides a communication method, Figure 3 The embodiment shown in the figure indicates the reference SSB through the first indication information. In this embodiment, the second network device is informed of the reference SSB through the indication of the synchronization state of at least one SSB, such as Figure 4 As shown, the method may include:

[0116] S401, a first network device determines a reference synchronization signal block SSB in at least one synchronization signal block.

[0117] The first network device may determine a reference SSB in the at least one SSB according to the synchronization state of the at least one SSB, wherein, when all SSBs in the at least one SSB are synchronized, the first network device may determine any SSB as the reference SSB. Alternatively, when not all SSBs in the at least one SSB are synchronized, the first network device may determine the SSB corresponding to the fixed frequency point in the at least one SSB or the reference synchronization signal block as the SSB corresponding to the fixed sequence number in the at least one SSB. Wherein, not all SSBs are synchronized may include that all SSBs are not synchronized, or one or more SSBs are not synchronized with other SSBs.

[0118] Among them, SSB synchronization means the synchronization of the cells corresponding to SSB. For example, it can be understood that SSB1 and SSB2 synchronization means the synchronization of the system frame number (SFN) and frame boundary of cell 1 corresponding to SSB1 and cell 2 corresponding to SSB2. Here, SFN synchronization can be understood as the same SFN, and frame boundary synchronization can be understood as frame boundary alignment.

[0119] S402, the first network device sends configuration information corresponding to at least one SSB to the second network device.

[0120] S403: The first network device sends configuration information corresponding to at least one CSI-RS to the second network device.

[0121] Among them, S402 and S403 can refer to the relevant descriptions at S202 and S203 respectively, and will not be repeated here.

[0122] S404, the first network device sends second indication information to the second network device, wherein the second indication information is used by the second network device to determine a reference SSB.

[0123] In some possible implementations, the second indication information is used by the second network device to determine the synchronization status of all synchronization signal blocks in the at least one synchronization signal block.

[0124] The embodiments of the present application do not limit how to indicate the synchronization status. For example, it can be implemented through at least one bit of information or field. When the field is "1" or "TRUE", it indicates that all SSBs in at least one SSB are synchronized. When the field is "0" or "FALSE", it indicates that not all SSBs in at least one SSB are synchronized. Alternatively, the second indication information may be sent only when all SSBs are synchronized. When the second indication information is not sent, it indicates that not all SSBs are synchronized. Alternatively, the second indication information may be sent when not all SSBs are synchronized, and the second indication information may not be sent when all SSBs are synchronized. Thereby, the second network device can be informed of the synchronization status of the at least one SSB, so as to facilitate the determination of the reference SSB.

[0125] It should be noted that the second indication information can be sent in the same or different message as the configuration information corresponding to the at least one SSB, or the first indication information can also be sent in the same or different message as the configuration information corresponding to the at least one CSI-RS. In addition, S404 can be executed before, after or simultaneously with S402 or S403, which is not limited in the embodiments of the present application.

[0126] S405: The second network device determines the timing information of the at least one CSI-RS according to the timing information of the reference SSB.

[0127] The second network device can obtain the synchronization state of the at least one SSB according to the second indication information, thereby determining the reference SSB. For example, similar to the first network device, when all SSBs in the at least one SSB are synchronized, the second network device can determine any SSB as the reference SSB. Alternatively, when not all SSBs in the at least one SSB are synchronized, the second network device can use the SSB corresponding to the fixed frequency point in the at least one SSB or the reference synchronization signal block as the SSB corresponding to the fixed sequence number in the at least one SSB.

[0128] The specific description of S405 can further refer to the relevant description of S204, which will not be repeated here.

[0129] In the embodiment of the present application, the second indication information indicates the relevant information for determining the reference SSB, so that the second network device can know the reference SSB for determining the timing of the CSI-RS, so that the time domain occurrence time of the CSI-RS can be accurately known, thereby improving communication efficiency. Furthermore, the second network device can accurately and effectively configure the user equipment to perform CSI-RS measurement at the air interface, thereby improving measurement accuracy, and serving as the basis for terminal device mobility (including cell reselection, switching, etc.).

[0130] In addition, in another possible embodiment, when the configuration information of at least one SSB sent by the first network device to the second network device includes multiple SSB frequencies, the multiple SSBs can be assumed to be synchronized. Figure 4 The embodiment shown is similar, except that there is no need to confirm the synchronization status of the SSB, but it is synchronized by default, so there is no need to execute S404. The second network device can use any one of the multiple SSBs as a reference SSB or determine a synchronization signal block corresponding to a fixed frequency or a synchronization signal block corresponding to a fixed sequence number as a reference SSB. In this embodiment, it is stipulated through the protocol that when the configuration information of at least one SSB sent by the first network device to the second network device includes multiple SSB frequencies, the multiple SSBs are synchronized, and the timing reference of the CSI-RS is determined to be the SSB on any SSB frequency, so that the time domain occurrence time of the CSI-RS can be accurately known, thereby improving communication efficiency. Furthermore, the second network device can accurately and effectively configure the user equipment to perform CSI-RS measurement on the air interface, thereby improving measurement accuracy, which serves as the basis for terminal device mobility (including cell reselection, switching, etc.).

[0131] The above defaults that the multiple SSBs are synchronized, which can also be understood as the protocol stipulates that when the configuration information of SSBs of multiple frequencies is sent, the multiple SSBs must be synchronized.

[0132] Optionally, based on the above method embodiments, it may also include: the first network device sends SSB index information to the second network device, and the SSB index information may indicate that the CSI-RS uses the timing of the SSB corresponding to the SSBindex in the reference SSB as a reference to determine the timing information of the CSI-RS. As mentioned above, the reference SSB refers to the SSB corresponding to the frequency point, and the SSB corresponding to the frequency point may have multiple SSBs according to the transmission direction. The multiple SSBs can be identified by indexes. Then the first network device sends the SSB index to the second network device, so that the second network device uses the timing information of the SSB in a certain direction in the reference SSB to determine the timing information. It can be understood that when the first network device does not send the above-mentioned SSB index information to the second network device, the second network device can determine the timing information of the CSI-RS by using the timing information of the SSB in any direction in the reference SSB. In one possible way, the SSB index information can be carried in the associated SSB field. Through the indication of the SSB index, it is possible to further determine in which direction the CSI-RS refers to the SSB to obtain timing. Furthermore, quasi-colocated information can be indicated based on the SSB index to help the terminal device obtain the CSI-RS transmission direction information more quickly and detect the CSI-RS signal more easily.

[0133] It can be understood that in the above-mentioned various method embodiments of the present application, the method implemented by the terminal device can also be implemented by a component (such as a chip or circuit) that can be configured in the terminal device, the method implemented by the network device (the first network device or the second network device) can also be implemented by a component (such as a chip or circuit) that can be configured in the network device, and the method implemented by the core network device can also be implemented by a component that can be configured in the core network device. In addition, the first network device can also be referred to as a first node, the second network device can also be referred to as a second node, and the core network device can also be referred to as a core network node.

[0134] It should be noted that in the above embodiments of the present application, "used for indication" may include being used for direct indication and being used for indirect indication. When describing that a certain indication information is used to indicate A, it may include that the indication information directly indicates A or indirectly indicates A, but it does not mean that A must be included in the indication information.

[0135] The information indicated by the indication information is called the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated. For example, but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each piece of information agreed in advance (for example, stipulated by the protocol), thereby reducing the indication overhead to a certain extent. At the same time, the common parts of each piece of information can also be identified and indicated uniformly to reduce the indication overhead caused by indicating the same information separately.

[0136] In addition, the first, second and various numerical numbers in the various embodiments of the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application. For example, to distinguish different frequency points.

[0137] Furthermore, the “protocol” involved in the embodiments of the present application may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, which is not limited in the present application.

[0138] The above mainly introduces the scheme provided by the embodiment of the present application from the perspective of interaction between various network elements. Accordingly, the embodiment of the present application also provides a communication device, which is used to implement the above various methods. The communication device can be a terminal device involved in the above various method embodiments, or a device including the above terminal device, or a component (chip or circuit) that can be used for the terminal device; or, the communication device can be a network device (such as a first network device, a second network device) involved in the above various method embodiments, or a device including the above network device, or a component that can be used for the network device; or, the communication device can also be a core network device involved in the above various method embodiments, or a component that can be used for the core network device. It can be understood that in order to implement the above functions, the communication device includes a hardware structure and / or software module corresponding to each function. In combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0139] The embodiment of the present application can divide the functional modules of the communication device according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or software functional module.

[0140] The following, combined Figures 5 to 7 The device provided in the embodiment of the present application is described in detail. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, so the contents not described in detail can be referred to the method embodiment above, and some contents will not be repeated for the sake of brevity.

[0141] Figure 5 The structure diagram of a communication device 500 of an embodiment of the present application is shown. The communication device 500 can implement any function corresponding to the first network device or the second network device in each of the above-mentioned method embodiments. The communication device can be a network device (a first network device or a second network device), or a component (such as a chip or a circuit) that can be configured in a network device. The communication device 500 includes: at least one processing unit 510 ( Figure 5 exemplarily including a processing unit) and at least one communication unit 520 ( Figure 5 Optionally, the communication device 500 may further include at least one storage unit 530 ( Figure 5 The storage unit 530 may be used to store computer-executable instructions and / or other information such as data. The processing unit 510 may read the instructions or data stored in the storage unit 530 to implement the corresponding solution.

[0142] It should be noted that the communication unit in the embodiment of the present application may also be referred to as a transceiver unit (module) or a communication interface, and the processing unit may be referred to as a processing module.

[0143] Exemplarily, when the communication device implements the function or step corresponding to the first network device in the method embodiment:

[0144] The processing unit 510 may be configured to determine a reference synchronization signal block in at least one synchronization signal block. The manner in which the processing unit 510 determines the reference synchronization signal block may refer to the description in the above-mentioned various method embodiments.

[0145] Furthermore, the processing unit 510 can also be used to determine the configuration information of the at least one first reference signal based on the timing information of the reference SSB.

[0146] The communication unit 520 is used to send configuration information corresponding to at least one first reference signal and configuration information corresponding to at least one synchronization signal block to the second network device.

[0147] In some possible implementations, the communication unit 520 may also be used to send first indication information or second indication information to the second network device, wherein the first indication information or the second indication information is used to determine the reference synchronization signal block. For the first indication information and the second indication information, reference may be made to the relevant description of the previous method embodiment. In some possible implementations, the communication unit 520 may also be used to send the SSB index information described above to the second network device, indicating that the CSI-RS uses the timing of the SSB corresponding to the SSB index in the reference SSB as a reference to determine the timing information of the CSI-RS.

[0148] Exemplarily, when the communication device implements the function or step corresponding to the second network device in the method embodiment:

[0149] The communication unit 520 may be configured to receive configuration information corresponding to at least one first reference signal and configuration information corresponding to at least one synchronization signal block from the first network device.

[0150] The processing unit 510 may be configured to determine the timing information of the at least one first reference signal according to the timing information of the reference synchronization signal block, wherein the reference synchronization signal block belongs to the at least one synchronization signal block.

[0151] In some possible implementations, the processing unit 510 may be configured to determine a synchronization signal block corresponding to a fixed frequency point or a synchronization signal block corresponding to a fixed sequence number in at least one synchronization signal block as a reference synchronization signal block.

[0152] In some possible implementations, the communication unit 520 may also be used to receive first indication information or second indication information from the first network device, wherein the first indication information or the second indication information is used to determine the reference synchronization signal block. For the first indication information and the second indication information, reference may be made to the relevant description of the previous method embodiment.

[0153] In some possible implementations, the processing unit 510 can also be used to, when the communication device 500 receives configuration information of SSBs corresponding to multiple frequency points, assume that the multiple SSBs are synchronized according to regulations, and can use any SSB as a reference SSB, or determine a synchronization signal block corresponding to a fixed frequency point or a synchronization signal block corresponding to a fixed sequence number as a reference SSB.

[0154] In some possible implementations, the communication unit 520 may also be used to receive SSB index information as described above from the first network device, thereby determining the timing information of the CSI-RS with reference to the timing of the SSB corresponding to the SSB index in the reference SSB.

[0155] It is understandable that the above units can be provided separately or integrated, and the embodiments of the present application do not limit this.

[0156] In a possible design, the processing unit 510 may be a processor, the communication unit 520 may be a transceiver, or the communication unit 520 may also be a communication interface or other interface circuits. The storage unit 530 may be a memory.

[0157] The “module” or “unit” in various embodiments of the present application may refer to an application-specific integrated circuit ASIC, a circuit, a processor and a memory that executes one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions.

[0158] Figure 6 600 provided by another embodiment of the present application is shown. The communication device 600 can implement any function corresponding to the first network device or the second network device in the above-mentioned various method embodiments. The communication device can be a network device (a first network device or a second network device), or a component (such as a chip or a circuit) that can be configured in a network device. The communication device 600 includes: at least one processor 601 ( Figure 6 exemplarily including a processor) and at least one memory 602 ( Figure 6 The memory may store instructions (or may also be called programs or codes) and / or data, and the processor 601 is coupled to the memory 602. For example, the processor 601 may call instructions and / or data in the memory 602 to enable the communication device to implement any function corresponding to the first network device or the second network device in the above-mentioned various method embodiments.

[0159] like Figure 7 , which is a schematic diagram of the structure of a network device (such as a first network device or a second network device) provided in an embodiment of the present application.

[0160] The network device 70 includes at least one processor ( Figure 7 In the example, a processor 701 is used as an example for explanation), at least one transceiver ( Figure 7 The exemplary embodiment includes a transceiver 703 as an example) and at least one network interface ( Figure 7Optionally, the network device 70 may further include at least one memory ( Figure 7 The exemplary embodiment of the present invention is described by taking a memory 702 as an example). The processor 701, the memory 702, the transceiver 703 and the network interface 704 may be connected via a communication line. The network interface 704 is used to connect to a core network device via a link (e.g., an NG interface), or to connect to a network interface of another network device via a wired or wireless link (e.g., an Xn interface). Figure 2 (not shown in the figure), and this embodiment of the present application does not make any specific limitation to this.

[0161] The processor and transceiver described in each embodiment of the present application can be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc. Optionally, the processor may include one or more processors, such as one or more CPUs, and in the case where the processor is a CPU, the CPU may be a single-core CPU or a multi-core CPU. The transceiver is used to send and receive data and / or signals, and receive data and / or signals. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and / or signals, the receiver is used to receive data and / or signals, and the transceiver may also be a communication interface. The memory includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable read only memory (EPROM), and compact disc read-only memory (CD-ROM), and the memory is used to store relevant instructions and / or data.

[0162] In a possible design, the chip mentioned in the embodiments of the present application can realize the relevant functions that can be realized by the processor, or can realize the relevant functions that can be realized by the processor and the transceiver, or can realize the relevant functions that can be realized by the processor, the transceiver and the memory. The chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips that realize the relevant functions.

[0163] An embodiment of the present application further provides a computer-readable medium on which a computer program is stored. When the computer program is executed, the communication method in any of the above method embodiments is implemented.

[0164] An embodiment of the present application also provides a computer program product, which, when executed, implements the communication method in any of the above method embodiments.

[0165] The present application also provides a communication system, which may include Figure 5-7 Any of the communication devices or equipment shown. Optionally, the communication system may also include a terminal device, the terminal device and Figure 5-7 Communicate with any of the communication devices or apparatuses shown.

[0166] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0167] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0168] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0169] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0170] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0171] In the above-mentioned embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive Solid State Drive (SSD)), etc.

[0172] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: include: The second network device receives configuration information corresponding to at least one first reference signal and configuration information corresponding to at least one synchronization signal block from the first network device, wherein the configuration information corresponding to the at least one first reference signal and the configuration information corresponding to the at least one synchronization signal block are carried in a measurement timing configuration message, and the at least one synchronization signal block is a synchronization signal block corresponding to a synchronization signal block frequency point; The second network device determines the timing information of the at least one first reference signal according to the timing information of a reference synchronization signal block, wherein the reference synchronization signal block belongs to the at least one synchronization signal block.

2. The method according to claim 1, characterized in that The reference synchronization signal block is a synchronization signal block corresponding to a fixed frequency point or the reference synchronization signal block is a synchronization signal block corresponding to a fixed sequence number in the at least one synchronization signal block.

3. The method according to claim 1, characterized in that The method also includes: receiving first indication information from the first network device, wherein the first indication information indicates frequency point information corresponding to the reference synchronization signal block or indicates an identifier corresponding to the reference synchronization signal block.

4. The method according to claim 1, characterized in that: The method further includes: receiving second indication information from the first network device, wherein the second indication information is used to determine the synchronization status of all synchronization signal blocks in the at least one synchronization signal block.

5. The method according to claim 4, characterized in that In the case where it is determined that all synchronization signal blocks in the at least one synchronization signal block are synchronized according to the second indication information, the reference synchronization signal block is any one synchronization signal block in the at least one synchronization signal block.

6. The method according to claim 4 or 5, characterized in that: When it is determined according to the second indication information that all the synchronization signal blocks in the at least one synchronization signal block are asynchronous, the reference synchronization signal block is a synchronization signal block corresponding to a fixed frequency point or the reference synchronization signal block is a synchronization signal block corresponding to a fixed sequence number in the at least one synchronization signal block.

7. The method according to any one of claims 1 to 5, characterized in that: The first reference signal comprises a channel state information reference signal.

8. A communication method, characterized in that: include: The first network device determines a reference synchronization signal block in at least one synchronization signal block, wherein the at least one synchronization signal block is a synchronization signal block corresponding to a synchronization signal block frequency point; The first network device sends configuration information corresponding to at least one first reference signal and configuration information corresponding to at least one synchronization signal block to the second network device, wherein the configuration information corresponding to the at least one first reference signal and the configuration information corresponding to the at least one synchronization signal block are carried in a measurement timing configuration message, and the timing information of the at least one first reference signal is determined based on the timing information of the reference synchronization signal block.

9. The method according to claim 8, characterized in that The reference synchronization signal block is a synchronization signal block corresponding to a fixed frequency point or the reference synchronization signal block is a synchronization signal block corresponding to a fixed sequence number in the at least one synchronization signal block.

10. The method according to claim 8, characterized in that The method further comprises: Send first indication information to the second network device, wherein the first indication information indicates frequency information corresponding to the reference synchronization signal block or indicates an identifier corresponding to the reference synchronization signal block.

11. The method according to claim 8, characterized in that The method also includes: the first network device sending second indication information to the second network device, wherein the second indication information is used to determine the synchronization status of all synchronization signal blocks in the at least one synchronization signal block.

12. A communication device, characterized in that: The communication device is used to implement the communication method according to any one of claims 1 to 7.

13. A communication device, characterized in that: The communication device is used to implement the communication method as described in any one of claims 8-11.

14. A communication system, characterized in that: Includes the communication device as claimed in claim 12 and the communication device as claimed in claim 13.

15. The system according to claim 14, characterized in that Also includes: Terminal device.

16. A computer-readable storage medium, characterized in that: A computer program or instruction is stored, and the computer program or instruction is used to implement the method according to any one of claims 1 to 7, or the method according to any one of claims 8 to 11.

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