Information transmitting and receiving method and device

Abstract

The embodiment of the invention provides an information transmitting and receiving method and device. The method comprises the following steps: a network device sends first related information measured by a pilot frequency adjacent candidate cell layer 1 based on a reference signal to a terminal device; and the network equipment receives the measurement report sent by the terminal equipment.

Description

Information sending and receiving method and device Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies. Background Art

[0002] Mobility management is an essential mechanism in cellular mobile communication systems. It helps the new wireless NR system achieve load balancing, providing a better user experience and improving overall system performance. When a terminal device moves from the coverage area of ​​one cell to the coverage area of ​​another cell, it needs to switch to the serving cell of the terminal device.

[0003] Currently, serving cell switching for terminal devices is triggered by Layer 3 measurements and achieved by reconfiguring the serving cell through Radio Resource Control (RRC) signaling. When RRC signaling reconfigures the serving cell, Layer 1 and Layer 2 operations of the communication system need to be reset, resulting in significant system latency, signaling load, and extended communication interruption. Therefore, a method has been proposed to trigger serving cell switching using Layer 1 measurement results and Layer 1 / Layer 2 signaling, effectively reducing system latency, signaling load, and communication interruption.

[0004] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art.

[0005] Summary of the Invention

[0006] In the current communication standards, in order to support the measurement of layer 1 / layer 2 triggered mobility management (L1 / L2 trigger mobility), a corresponding solution is provided for the layer 1 measurement of the same-frequency adjacent candidate cells based on the synchronization signal block (SSB). Currently, there is no corresponding solution for the switching of the inter-frequency adjacent candidate cells based on the reference signal, nor is there a corresponding solution for the layer 1 measurement of the same-frequency adjacent candidate cells based on the CSI-RS. In other words, there is no corresponding solution for the layer 1 measurement of the adjacent candidate cells based on the CSI-RS.

[0007] To address at least one of the above problems, embodiments of the present application provide a method and apparatus for sending and receiving information.

[0008] According to one aspect of an embodiment of the present application, there is provided an information transceiver device, which is applied to a network device, including:

[0009] A first sending unit, configured to send first relevant information of an inter-frequency adjacent candidate cell layer 1 measurement based on a reference signal to a terminal device;

[0010] A first receiving unit is configured to receive a measurement report sent by the terminal device.

[0011] According to another aspect of an embodiment of the present application, there is provided an information transceiver device, applied to a terminal device, comprising:

[0012] a second receiving unit configured to receive first relevant information of layer 1 measurement of an inter-frequency adjacent candidate cell based on a reference signal sent by a network device;

[0013] A second sending unit is configured to send a measurement report to the network device.

[0014] According to another aspect of an embodiment of the present application, a communication system is provided, including a terminal device and / or a network device, wherein the terminal device includes the information transceiver device described in the aforementioned first aspect, and the network device includes the information transceiver device described in the aforementioned other aspect.

[0015] One of the beneficial effects of the embodiments of the present application is that: by configuring the first relevant information of the layer 1 measurement of the inter-frequency adjacent candidate cell based on the reference signal for the terminal device, it is possible to support the layer 1 / layer 2 switching of the inter-frequency adjacent candidate cell, so that it can be triggered by the measurement result of layer 1, and the service cell can be switched through the layer 1 / layer 2 signaling, which can effectively reduce the system delay, signaling load and communication interruption time.

[0016] One of the beneficial effects of the embodiments of the present application is that: by configuring the terminal device with the third relevant information of the layer 1 measurement of the adjacent candidate cell based on the CSI-RS, it is possible to support the layer 1 / layer 2 switching of the adjacent candidate cell based on the CSI-RS, so that it can be triggered by the measurement result of layer 1, and the serving cell can be switched through the layer 1 / layer 2 signaling, which can support higher-precision synchronization and higher received signal-to-noise ratio SNR after switching, thereby further reducing the system delay, signaling load and communication interruption time.

[0017] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents.

[0018] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0019] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.

[0021] FIG1 is a schematic diagram of a communication system of the present application;

[0022] FIG2 is a schematic diagram of a method for sending and receiving information according to an embodiment of the present application;

[0023] FIG3 is a schematic diagram of a method for sending and receiving information according to an embodiment of the present application;

[0024] FIG4 is a schematic diagram of a cell switching method according to an embodiment of the present application;

[0025] FIG5 is a schematic diagram of a method for sending and receiving information according to an embodiment of the present application;

[0026] FIG6 is a schematic diagram of a method for sending and receiving information according to an embodiment of the present application;

[0027] FIG7 is a schematic diagram of a cell switching method according to an embodiment of the present application;

[0028] FIG8 is a schematic diagram of an information configuration method according to an embodiment of the present application;

[0029] FIG9 is a schematic diagram of an information configuration method according to an embodiment of the present application;

[0030] FIG10 is a schematic diagram of an information transceiver device according to an embodiment of the present application;

[0031] FIG11 is a schematic diagram of an information transceiver device according to an embodiment of the present application;

[0032] FIG12 is a schematic diagram of a network device according to an embodiment of the present application;

[0033] FIG13 is a schematic diagram of a terminal device according to an embodiment of the present application. DETAILED DESCRIPTION

[0034] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which illustrate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0035] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0036] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.

[0037] In the embodiments of the present application, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0038] Furthermore, communication between devices in the communication system may be carried out according to communication protocols of any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), future 6G, etc., and / or other communication protocols currently known or to be developed in the future.

[0039] In the embodiments of the present application, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to the communication network and provides services to the terminal device. Network devices may include, but are not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.

[0040] Base stations may include, but are not limited to, NodeB (NB), evolved NodeB (eNodeB or eNB), and 5G base stations (gNB), among others. They may also include remote radio heads (RRHs), remote radio units (RRUs), relays, or low-power nodes (e.g., femeto, pico, etc.). The term "base station" may include some or all of their functions, and each base station may provide communication coverage for a specific geographic area. The term "cell" may refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0041] In the embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. A terminal device can be fixed or mobile and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and so on.

[0042] The terminal device may include but is not limited to the following devices: cellular phone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, machine type communication device, laptop computer, cordless phone, smart phone, smart watch, digital camera, etc.

[0043] For another example, in scenarios such as the Internet of Things (IoT), the terminal device can also be a machine or device for monitoring or measurement, including but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device-to-device (D2D) terminal, machine-to-machine (M2M) terminal, and so on.

[0044] In addition, the term "network side" or "network device side" refers to one side of the network, which can be a base station or one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the user or terminal side, which can be a UE or one or more terminal devices as described above. Unless otherwise specified herein, "device" can refer to either network equipment or terminal equipment.

[0045] In the following description, the terms "uplink control signal" and "uplink control information (UCI)" or "physical uplink control channel (PUCCH)" are interchangeable, and the terms "uplink data signal" and "uplink data information" or "physical uplink shared channel (PUSCH)" are interchangeable to avoid confusion.

[0046] The terms "downlink control signal" and "downlink control information (DCI)" or "physical downlink control channel (PDCCH)" are interchangeable, and the terms "downlink data signal" and "downlink data information" or "physical downlink shared channel (PDSCH)" are interchangeable.

[0047] In addition, sending or receiving PUSCH can be understood as sending or receiving uplink data carried by PUSCH, sending or receiving PUCCH can be understood as sending or receiving uplink information carried by PUCCH, and sending or receiving PRACH can be understood as sending or receiving preamble carried by PRACH; uplink signals can include uplink data signals and / or uplink control signals, etc., and can also be referred to as uplink transmission (UL transmission) or uplink information or uplink channels. Sending uplink transmission on uplink resources can be understood as sending the uplink transmission using the uplink resources. Similarly, downlink data / signals / channels / information can be understood accordingly.

[0048] In the embodiments of the present application, the high-layer signaling may be, for example, radio resource control (RRC) signaling; for example, an RRC message, including, for example, an MIB, system information, or a dedicated RRC message; or an RRC information element (RRC IE). The high-layer signaling may also be, for example, MAC (Medium Access Control) signaling; or a MAC control element (MAC CE). However, the present application is not limited thereto.

[0049] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.

[0050] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a situation using a terminal device and a network device as an example. As shown in FIG1 , a communication system 100 may include a network device 101 and terminal devices 102 and 103. For simplicity, FIG1 illustrates only two terminal devices and one network device as an example, but the embodiments of the present application are not limited thereto.

[0051] In the embodiment of the present application, existing services or future services can be transmitted between the network device 101 and the terminal devices 102 and 103. For example, these services may include but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0052] The terminal device 102 may send data to the network device 101, for example, using an authorized or unauthorized transmission mode. The network device 101 may receive data sent by one or more terminal devices 102 and provide feedback to the terminal device 102, such as ACK / NACK information. The terminal device 102 may confirm the end of the transmission process, or may continue with new data transmission, or may retransmit the data based on the feedback information.

[0053] It is worth noting that FIG1 shows that both terminal devices 102 and 103 are within the coverage range of network device 101, but the present application is not limited thereto. Both terminal devices 102 and 103 may not be within the coverage range of network device 101, or one terminal device 102 may be within the coverage range of network device 101 while the other terminal device 103 is outside the coverage range of network device 101.

[0054] In the communication protocol stack, there are three layers: layer 1 includes the physical layer, layer 2 includes the radio link control RLC layer and the media access MAC layer, and layer 3 includes the RRC layer.

[0055] Currently, when the reference signal is a synchronization signal block (SSB), the configuration of the synchronization signal block for layer 1 measurement includes information about the corresponding co-frequency adjacent candidate cells. The synchronization signal block measurement resource configuration can be expressed using ASN.I syntax as follows:

[0056] That is, a servingAdditionalPCIList-r17 information field is added to the synchronization signal block measurement resource configuration information and associated with each SSB in the SSB set. Its content is the physical cell ID index of the co-frequency adjacent candidate cell. When its value is 0, it indicates that the reference signal is the reference signal of the current serving cell. When it is not 0, the value is AdditionalPCIIndex-r17, indicating that the reference signal is the reference signal of the co-frequency adjacent candidate cell.

[0057] In addition, the physical cell ID index value AdditionalPCIIndex-r17 of the co-frequency adjacent candidate cell is configured in the SSB measurement timing configuration information element (SSB-MTC). It can be expressed using ASN.I syntax as follows:

[0058] That is to say, an SSB-MTC-AdditionalPCI-r17 information field is added to the measurement timing configuration information element SSB-MTC for the adjacent candidate cell SSB, including the physical cell ID index (AdditionalPCIIndex-r17), the physical cell ID, and the measurement period of the SSB, the time domain position of the SSB, and the measurement-related parameters such as power.

[0059] As mentioned above, in order to support the measurement of layer 1 / layer 2 triggered mobility management (L1 / L2 trigger mobility), a corresponding solution is provided for the layer 1 measurement of the same-frequency adjacent candidate cells based on SSB. Currently, there is no corresponding solution for the layer 1 measurement of the same-frequency adjacent candidate cells based on CSI-RS, nor is there a corresponding solution for the switching of the inter-frequency adjacent candidate cells based on the reference signal. In other words, there is no corresponding solution for the layer 1 measurement of the adjacent candidate cells based on CSI-RS.

[0060] In response to the above problems, embodiments of the present application provide a method and device for sending and receiving information, which are described below with reference to the accompanying drawings and embodiments.

[0061] Embodiments of the first aspect

[0062] An embodiment of the present application provides a method for sending and receiving information, which is described from the perspective of a network device.

[0063] FIG2 is a schematic diagram of a method for sending and receiving information according to an embodiment of the present application. As shown in FIG2 , the method includes:

[0064] 201. The network device sends first related information of layer 1 measurement of an inter-frequency neighboring candidate cell based on a reference signal to the terminal device;

[0065] 202. The network device receives a measurement report sent by the terminal device.

[0066] It is worth noting that FIG2 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG2 above.

[0067] Through the above embodiment, by configuring the first relevant information of the layer 1 measurement of the inter-frequency adjacent candidate cell based on the reference signal for the terminal device, it is possible to support the layer 1 / layer 2 switching of the inter-frequency adjacent candidate cell, so that it can be triggered by the measurement result of layer 1, and the service cell can be switched through the layer 1 / layer 2 signaling, which can effectively reduce the system delay, signaling load and communication interruption time.

[0068] In some embodiments, the reference signal-based layer 1 measurement of the adjacent candidate cell is used to support layer 1 / layer 2 triggered mobility management, or the reference signal-based layer 1 measurement of the adjacent candidate cell is used to support layer 1 / layer 2 switching of the adjacent candidate cell, that is, switching of the serving cell is performed through layer 1 / layer 2 signaling.

[0069] In some embodiments, the reference signal includes SSB or CSI-RS, and the CSI-RS can be CSI-RS for beam management, or CSI-RS for interference management (CSI-IM), or CSI-RS for time-frequency tracking (TRS). The embodiments of the present application are not limited to this.

[0070] In some embodiments, the network device of the serving cell may configure reference signal resources for measurement of the current serving cell and neighboring cells. That is, the method may include: the network device sending reference signal measurement resource configuration information for layer 1 measurement to the terminal device, where the reference signal measurement resource configuration information may be carried via RRC signaling. The following measurement resources and reference signals may be interchangeable.

[0071] In some embodiments, the configured measurement resource is a resource set list (reference signal set), each resource set consists of one or more measurement resources (reference signals), and the network device can configure multiple reference signals for the terminal device for adjacent candidate cell layer 1 measurement. The reference signal measurement resource configuration information includes a reference signal set identifier (measurement resource set identifier) ​​and the index of one or more measurement resources (reference signals) constituting the reference signal set (measurement resource) set, as well as the index of the cell identifier associated with each reference signal. In other words, when the reference signal measurement resource configuration information contains the index of the cell identifier associated with each reference signal, it indicates that the configured reference signal set is used for the measurement of mobility management triggered by layer 1 / layer 2. The index of the cell identifier corresponds one-to-one to the reference signal, wherein the association of the reference signal with the cell means that the reference signal is sent by the network device of the associated cell. By adding this association, it can be indicated which cell each reference signal in the reference signal set comes from, and the terminal device realizes the measurement of the associated cell by measuring the quality of the reference signal of the cell. The associated cell includes the current serving cell and / or the adjacent candidate cell, and the adjacent candidate cell includes the same-frequency adjacent candidate cell and / or the different-frequency adjacent candidate cell.

[0072] It should be noted that the names, data types, and value ranges of information fields in the following embodiments are merely illustrative and are not intended to limit the present invention.

[0073] For example, when the reference signal is SSB, the reference signal measurement resource configuration information CSI-SSB-ResourceSet for layer 1 measurement can be expressed in ASN.I syntax as follows: (Example 1)

[0074] That is to say, the configuration information includes the reference signal set identifier CSI-SSB-ResourceSetId, the index of each reference signal in the reference signal set csi-SSB-ResourceList (SSB INDEX), and the index of the cell identifier associated with each reference signal servingAdditionalPCIList-r17, whose value is the PCI Index of each cell associated with each reference signal. The data type is a sequence of integers (0 or AdditionalPCIIndex-r17), and the length of the sequence is the number of reference signals in the reference signal set. The value range of each value in the sequence depends on the number of adjacent candidate cells to be configured. For example, the indices of the pre-configured cell identifiers include 0, 1, 2, 3, 4, 5, 6, 7, where 0 represents the current serving cell and 1, 2, 3, 4, 5, 6, 7 represent adjacent candidate cells. Assuming that the reference signal set includes 64 SSBs and the index of each SSB is 0, 1, 2, ..., 63, the index of the cell identifier associated with each reference signal in servingAdditionalPCIList-r17 includes the indexes of 64 cell identifiers. The order of the indexes corresponds to the order of the 64 SSBs. For example, 0, 1, 1, 1, 4, 4, 4.... indicates that the first SSB is associated with the current serving cell, the second, third, and fourth SSBs are associated with the adjacent candidate cell with an index of 1, the fifth, sixth, and seventh SSBs are associated with the adjacent candidate cell with an index of 4, and so on. Examples are not given one by one here.

[0075] For example, when the reference signal is a CSI-RS for beam measurement, the reference signal measurement resource configuration information NZP-CSI-RS-ResourceSet for layer 1 measurement can be expressed in ASN.I syntax as follows: (Example 2)

[0076] That is to say, the configuration information includes the reference signal set identifier nzp-CSI-ResourceSetId, the index of each reference signal in the reference signal set nzp-CSI-RS-Resources (NZP-CSI-RS-ResourceId), and an optional information field servingAdditionalPCIList-r18 is added to associate each reference signal with the index of the cell identifier. When this information field appears, it indicates that the configured reference signal set is used for measurements of layer 1 / layer 2 triggered mobility management. Its value is the PCI Index of each cell associated with each reference signal, and its data type is a sequence of integers (0 or AdditionalPCIIndex-r18). The length of the sequence is the number of reference signals in the reference signal set, and the value range of each value in the sequence depends on the number of adjacent candidate cells to be configured. For example, the indices of the pre-configured cell identifiers include 0, 1, 2, 3, 4, 5, 6, and 7, where 0 represents the current serving cell and 1, 2, 3, 4, 5, 6, and 7 represent adjacent candidate cells. Assuming that the reference signal set includes 64 CSI-RS resources and the indexes of each resource are 0, 1, 2, ..., 63, the indexes of the cell identifiers associated with each reference signal in servingAdditionalPCIList-r18 include the indices of 64 cell identifiers. The order of the indexes corresponds to the order of the 64 CSI-RS resources. For example, 0, 1, 1, 1, 4, 4, 4.... indicates that the first CSI-RS resource is associated with the current serving cell, the second, third, and fourth CSI-RS resources are associated with the adjacent candidate cell with an index of 1, the fifth, sixth, and seventh CSI-RS resources are associated with the adjacent candidate cell with an index of 4, and so on. Examples are not given one by one here.

[0077] Optionally, in the layer 1 / layer 2 cell switching solution, in order to further reduce the switching delay of the system, it is necessary to complete the estimation of the fine synchronization of adjacent cells before the cell switching behavior occurs.

[0078] Therefore, when the CSI-RS resource is a CSI-RS (TRS) resource for time-frequency tracking, the reference signal measurement resource configuration information may further include first indication information trs-Info, where the first indication information is used to indicate that each reference signal in the reference signal set is used for time-frequency tracking, or in other words, the reference signal set is a TRS set, or in other words, the reference signal is a TRS, which is used for downlink fine synchronization of the terminal device. That is, the reference signal measurement resource configuration information including the first indication information can be regarded as TRS measurement resource configuration information. The reference signal measurement resource configuration information NZP-CSI-RS-ResourceSet for layer 1 measurement can be expressed in ASN.I syntax as follows: (Example 3)

[0079] That is to say, the TRS measurement resource configuration information includes the TRS set identifier nzp-CSI-ResourceSetId, the index of each TRS in the TRS set nzp-CSI-RS-Resources (NZP-CSI-RS-ResourceId), and also includes a newly added optional information field servingAdditionalPCIList-r18. When this information field appears, it indicates that the configured reference signal set is used for layer 1 / layer 2 triggered mobility management measurement. This information field associates the index of each TRS and cell identifier, and its value is the PCI Index of each cell associated with each TRS. The implementation of servingAdditionalPCIList-r18 is as described above and will not be repeated here.

[0080] For example, when the reference signal is a CSI-RS (CSI-IM) resource for interference management, the reference signal measurement resource configuration information CSI-IM-ResourceSet for layer 1 measurement can be expressed in ASN.I syntax as follows: (Example 4)

[0081] That is, the configuration information includes the reference signal set identifier csi-IM-ResourceSetId, the index of each reference signal in the reference signal set csi-IM-Resources (CSI-IM-ResourceId), and a newly added optional information field servingAdditionalPCIList-r18. When this information field appears, it indicates that the configured reference signal set is used for Layer 1 / Layer 2 triggered mobility management measurements. This information field associates the index of each reference signal with the cell identifier. The implementation of servingAdditionalPCIList-r18 is as described above and will not be repeated here.

[0082] In some embodiments, as described above, the reference signal set configured by the reference signal measurement resource configuration information is used for measurement of layer 1 / layer 2 triggered mobility management (layer 1 / layer 2 handover). Optionally, indication information can be added to the reference signal measurement resource configuration information, and the indication information can explicitly indicate that the reference signal set is used for measurement of layer 1 / layer 2 triggered mobility management (layer 1 / layer 2 handover). For example, an indication information field L1 / L1-mobility-info can be added to the aforementioned example 1 or example 2 or example 3 or example 4, and its data type is an enumeration type. When the reference signal measurement resource configuration information includes the indication information, it indicates that the configured reference signal set is used for measurement of layer 1 / layer 2 triggered mobility management (layer 1 / layer 2 handover), and the configuration information of the adjacent candidate cell needs to be configured, that is, the information field servingAdditionalPCIList-r18 needs to be configured at this time, or in other words, the reference signal measurement resource configuration information needs to include the information field servingAdditionalPCIList-r18. Otherwise, when the reference signal measurement resource configuration information does not include the indication information, it indicates that the configured reference signal set is not used for measurement of layer 1 / layer 2 triggered mobility management (layer 1 / layer 2 handover).

[0083] Taking Example 3 as an example, the reference signal measurement resource configuration information NZP-CSI-RS-ResourceSet with added indication information can be expressed in ASN.I syntax as follows:

[0084] Only Example 3 is taken here as an example. The implementation methods of the indication information of Examples 1, 2, and 4 are similar and will not be repeated here. It should be noted that the indication information and the trs-Info information field do not want to be configured at the same time, and the indication information and the repetition information field do not want to be configured at the same time. That is to say, when the reference signal measurement resource configuration information includes indication information, it cannot include the trs-Info information field, and the value of repetition cannot be configured as on, that is, it can include the configuration of repetition, or include the configuration of repetition, but can only be configured as off. When the reference signal measurement resource configuration information includes the trs-Info information field, it cannot include the configuration of indication information and repetition. When the value of repetition of the reference signal measurement configuration information is on, it cannot include indication information and trs-Info information field.

[0085] The above describes the reference signal measurement resource configuration information. The configuration information indicates the correspondence between the configured reference signal and the adjacent candidate cell. The network device can also configure the relevant measurement parameters of the reference signal of the adjacent candidate cell (or the network device can also configure the adjacent candidate cell), that is, the network device of the serving cell can send configuration information for the adjacent candidate cell to the terminal device. The adjacent candidate cell can be a same-frequency adjacent candidate cell or an opposite-frequency adjacent candidate cell, that is, the configuration information includes at least the first relevant information based on the reference signal for the opposite-frequency adjacent candidate cell layer 1 measurement and / or the second relevant information based on the reference signal for the same-frequency adjacent candidate cell layer 1 measurement (carried by RRC signaling).

[0086] In some embodiments, the first relevant information of the inter-frequency adjacent candidate cell layer 1 measurement based on the reference signal includes cell identification information, and at least one of the reference signal frequency and reference signal subcarrier spacing. The inter-frequency adjacent candidate cell includes one or more adjacent cells, and at least one of the center frequency and subcarrier spacing of the inter-frequency candidate adjacent cell and the serving cell is different. For example, for inter-frequency candidate adjacent cells with the same subcarrier spacing but different center frequencies, the first relevant information needs to include cell identification information and reference signal frequency, and the subcarrier spacing is optional; for inter-frequency candidate adjacent cells with different subcarrier spacing but the same center frequency, the first relevant information needs to include cell identification information and reference signal subcarrier spacing, and the center frequency is optional; for inter-frequency candidate adjacent cells with different subcarrier spacing and different center frequencies, the first relevant information needs to include cell identification information, reference signal subcarrier spacing and center frequency, so that the terminal device can determine the frequency information of the inter-frequency adjacent candidate cell and the associated reference signal. In addition, the cell identification information includes the cell identification and the cell identification index. The first relevant information also includes: at least one of reference signal measurement period configuration information, reference signal power configuration information, and reference signal time-frequency resource information.

[0087] In some embodiments, the second relevant information of the reference signal-based co-frequency adjacent candidate cell layer 1 measurement includes cell identification information, the co-frequency adjacent candidate cell includes one or more adjacent cells, the co-frequency candidate adjacent cell and the serving cell have the same center frequency and subcarrier spacing, and the cell identification information includes the cell identification and the cell identification index. The second relevant information also includes: at least one of reference signal measurement period configuration information, reference signal power configuration information, and reference signal time-frequency resource information.

[0088] In some embodiments, the first relevant information and the second relevant information are carried by the same information element or information domain (for example, configuration information for adjacent candidate cells), or are carried by different information elements or information domains, and the cell identification (cell ID) information of the first relevant information and the cell identification information of the second relevant information are indicated by the same information element or information domain, or by different information elements or information domains, as illustrated in the following examples.

[0089] For example, when the reference signal is SSB:

[0090] In some embodiments, the first relevant information and the second relevant information are carried by the same information element or information field, that is, the relevant information of the same-frequency adjacent candidate cell and the different-frequency adjacent candidate cell layer 1 measurement are mixed together for configuration. For example, the existing configuration information SSB-MTC-AddintialPCI-r17 for the adjacent candidate cell can be used to configure (or carry) the first relevant information and / or the second relevant information. Wherein, SSB-MTC-AddintialPCI-r17 can be expressed in ASN.I syntax as follows:

[0091] That is to say, the additionalPCIIndex-r17 and additionalPCI-r17 in the existing SSB-MTC-AddintialPCI-r17 can be reused as the cell identification information in the first related information or the second related information, that is, the index additionalPCIIndex-r17 of the Cell ID and the cell ID additionalPCI-r17 can be included. The SSB corresponding to the additionalPCIIndex-r17 can be found in the index of the cell identifier associated with each reference signal in the reference signal measurement resource configuration information. Thus, the SSB and the cell ID of the adjacent candidate cell (same frequency or different frequency) can be associated through the cell identification information. The data type of the cell ID index additionalPCIIndex-r17 is an integer, and the value range depends on the number of adjacent candidate cells (same frequency or different frequency) to be configured. The data type (PhysCellId) of the additionalPCI-r17 is an integer, and the value range is 0 to 1007. In addition, for inter-frequency adjacent candidate cells, the SSB-MTC-AddintialPCI-r17 can also add the information field ssbFrequency of the SSB frequency of the inter-frequency adjacent candidate cells, and / or the information field ssbSubcarrrierSpacing of the SSB subcarrier spacing of the inter-frequency adjacent candidate cells. Optionally, it can also include the SSB measurement period configuration information periodicity-r17, the SSB time domain resource information ssb-PositionsInBurst and the SSB power configuration information ss-PBCH-BlockPower-r17, where the value of ssbFrequency is the frequency index corresponding to the synchronization grid predefined by NR, and its value range is 0 to 3279165; the value of ssbSubcarrrierSpacing is the subcarrier spacing predefined by NR, and its value type is enumeration type.The newly added information fields ssbFrequency and ssbSubcarrrierSpacing are optional. When they appear in SSB-MTC-AddintialPCI-r17, it means that the SSB-MTC-AddintialPCI-r17 carries the first relevant information. Otherwise, when they do not appear in SSB-MTC-AddintialPCI-r17, it means that the SSB-MTC-AddintialPCI-r17 carries the second relevant information; that is, when they appear in SSB-MTC-AddintialPCI-r17, it means that the cell corresponding to the cell identification information carried by the SSB-MTC-AddintialPCI-r17 is an inter-frequency adjacent candidate cell. Otherwise, when they do not appear in SSB-MTC-AddintialPCI-r17, it means that the cell corresponding to the cell identification information carried by the SSB-MTC-AddintialPCI-r17 is a same-frequency adjacent candidate cell. In this example, the cell ID information of the first related information and the cell ID information of the second related information are indicated using the same information element or information field (reusing the existing one) additionalPCI-r17 and additionalPCI-r17.

[0092] In some embodiments, the first relevant information and the second relevant information are carried by different information elements or information fields, that is, the relevant information of the same-frequency adjacent candidate cell and the inter-frequency adjacent candidate cell layer 1 measurement are configured separately. For example, for the same-frequency adjacent candidate cell, the second relevant information can be configured using the existing SSB-MTC-AddintialPCI-r17. Wherein, SSB-MTC-AddintialPCI-r17 can be expressed in ASN.I syntax as follows:

[0093] SSB-MTC-AddintialPCI-r17 includes the additionalPCIIndex-r17 information field and the additionalPCI-r17 information field (same frequency). Optionally, it can also include the SSB measurement period configuration information periodicity-r17, the SSB time domain resource information ssb-PositionsInBurst and the SSB power configuration information ss-PBCH-BlockPower-r17. The above existing information is equivalent to the second relevant information. The SSB corresponding to the additionalPCIIndex-r17 can be found in the index of the cell identifier associated with each reference signal in the reference signal measurement resource configuration information. Thus, the SSB and the cell ID of the adjacent candidate cell (same frequency) can be associated through the cell identifier information. In addition, the value range and data type of each information field are similar to those in the aforementioned embodiment and will not be repeated here.

[0094] For the inter-frequency adjacent candidate cells, the first related information can be configured using the newly added information element SSB-MTC-AddintialPCI-r18. Among them, SSB-MTC-AddintialPCI-r18 can be expressed in ASN.I syntax as follows:

[0095] That is to say, the newly added SSB-MTC-AddintialPCI-r18 adds cell identification information, namely the additionalPCIIndex-r18 information field and the additionalPCI-r18 information field (hetero-frequency, which is different from the information element or information field additionalPCIIndex-r17 and additionalPCI-r17 of the cell identification information in the second relevant information). In addition, the SSB-MTC-AddintialPCI-r18 can also add the non-optional hetero-frequency adjacent candidate cell SSB frequency information field ssbFrequency, and / or the hetero-frequency adjacent candidate cell SSB subcarrier spacing information field ssbSubcarrrierSpacing. The specific implementation method is as described above and will not be repeated here. Optionally, it may also include SSB measurement period configuration information periodicity-r18, SSB time domain resource information ssb-PositionsInBurst, and SSB power configuration information ss-PBCH-BlockPower-r18. The above information is used as the first relevant information. The SSB corresponding to the additionalPCIIndex-r18 can be found in the index of the cell identifier associated with each reference signal in the reference signal measurement resource configuration information. Thus, the SSB and the cell ID of the adjacent candidate cell (different frequency) can be associated through the cell identifier information. In addition, the value range and data type of each information field are similar to those in the aforementioned embodiment and will not be repeated here.

[0096] When associating SSBs as described above, a group of SSBs can be associated with the same-frequency adjacent candidate cells and the different-frequency adjacent candidate cells respectively, that is, the SSBs associated with additionalPCIIndex-r17 and additionalPCIIndex-r18 are different (different quantities and / or indexes). In addition, the network device configures the different-frequency adjacent candidate cells or the same-frequency adjacent candidate cells through SSB-MTC-AddintialPCI-r18 or SSB-MTC-AddintialPCI-r17, including one or more adjacent candidate cells, whose data type is sequence (the length depends on the number of configured same-frequency or different-frequency adjacent candidate cells). The network device configures the first relevant information and / or the second relevant information for each adjacent candidate cell; in addition, the frequency point for SSB refers to the center frequency point.

[0097] For example, when the reference signal is a CSI-RS (including CSI-RS for beam measurement, CSI-RS for interference management (CSI-IM), and CSI-RS for time-frequency tracking (TRS)):

[0098] In some embodiments, the first relevant information and the second relevant information are carried by the same information element or information field. That is, the relevant information of the same-frequency adjacent candidate cell and the inter-frequency adjacent candidate cell layer 1 measurement are mixed together for configuration. For example, CSI-RS-MTC-AdditionalPCI-r18 configuration information for adjacent candidate cells based on CSI-RS can be added to carry the first relevant information and / or the second relevant information. CSI-RS-MTC-AdditionalPCI-r18 can be expressed in ASN.I syntax as follows:

[0099] That is to say, cell identification information can be added to the newly added CSI-RS-MTC-AdditionalPCI-r18, including the index additionalPCIIndex-r18 of the Cell ID and the cell ID additionalPCI-r18. The CSI-RS corresponding to the additionalPCIIndex-r18 can be found in the index of the cell identifier associated with each reference signal in the reference signal measurement resource configuration information. Thus, the CSI-RS and the cell ID of the adjacent candidate cell (same frequency or different frequency) can be associated through the cell identification information. The data type of the index additionalPCIIndex-r18 of the cell ID is an integer, and the value range depends on the number of adjacent candidate cells (same frequency or different frequency) to be configured. The data type (PhysCellId) of the additionalPCI-r18 is an integer, and the value range is 0 to 1007. In addition, for inter-frequency adjacent candidate cells, the CSI-RS-MTC-AdditionalPCI-r18 can also add the information field refFreqCSI-RS of the CSI-RS frequency of the inter-frequency adjacent candidate cell, and / or the information field CSI-RS-subcarrierSpacing of the CSI-RS subcarrier spacing of the inter-frequency adjacent candidate cell. It can also include CSI-RS measurement period configuration information, CSI-RS time domain resource information and CSI-RS power configuration information, where the value range and data type of the cell identification information, refFreqCSI-RS and CSI-RS-subcarrierSpacing are the same as those of the SSB frequency and subcarrier spacing, and will not be repeated here.

[0100] The newly added information fields refFreqCSI-RS and CSI-RS-subcarrierSpacing are optional. When they appear in CSI-RS-MTC-AdditionalPCI-r18, it indicates that the CSI-RS-MTC-AdditionalPCI-r18 carries the first relevant information. Otherwise, when they do not appear in CSI-RS-MTC-AdditionalPCI-r18, it indicates that the CSI-RS-MTC-AdditionalPCI-r18 carries the second relevant information. That is, when they appear in CSI-RS-MTC-AdditionalPCI-r18, it indicates that the cell corresponding to the cell identification information carried by the CSI-RS-MTC-AdditionalPCI-r18 is an inter-frequency adjacent candidate cell. Otherwise, when they do not appear in CSI-RS-MTC-AdditionalPCI-r18, it indicates that the cell corresponding to the cell identification information carried by the CSI-RS-MTC-AdditionalPCI-r18 is a same-frequency adjacent candidate cell. In this example, the cell identification (cell ID) information of the first related information and the cell identification information of the second related information are indicated using the same information element or information field additionalPCI-r18 and additionalPCI-r18.

[0101] In some embodiments, the first relevant information and the second relevant information are carried by different information elements or information fields. That is, the relevant information of the same-frequency adjacent candidate cell and the inter-frequency adjacent candidate cell layer 1 measurement are configured separately. For example, for the same-frequency adjacent candidate cell, the second relevant information can be configured using the newly added CSI-RS-MTC-AdditionalPCI-r18. Among them, CSI-RS-MTC-AdditionalPCI-r18 can be expressed in ASN.I syntax as follows:

[0102] That is, the cell identification information is added, namely the additionalPCIIndex-r18 information field and the additionalPCI-r18 information field (same frequency), and may also include CSI-RS measurement period configuration information, CSI-RS time domain resource information, and CSI-RS power configuration information. The above information is used as the second related information. The CSI-RS corresponding to the additionalPCIIndex-r18 can be found in the index of the cell identifier associated with each reference signal in the reference signal measurement resource configuration information. Thus, the CSI-RS can be associated with the cell ID of the adjacent candidate cell (same frequency) through the cell identification information. In addition, the value range and data type of each information field are similar to those in the aforementioned embodiment and will not be repeated here.

[0103] For the inter-frequency neighboring candidate cells, the first related information can be configured using the newly added information element CSI-RS-MTC-AdditionalPCI-r18'. Wherein, CSI-RS-MTC-AdditionalPCI-r18' can be expressed in ASN.I syntax as follows:

[0104] That is to say, the newly added CSI-RS-MTC-AdditionalPCI-r18' adds cell identification information, namely, additionalPCIIndex-r18' information field and additionalPCI-r18' information field (different frequency, In addition, the CSI-RS-MTC-AdditionalPCI-r18' can also add the non-optional different frequency adjacent candidate cell CSI-RS frequency information field refFreqCSI-RS, and / or the different frequency adjacent candidate cell CSI-RS subcarrier spacing information field CSI-R The specific implementation of S-subcarrierSpacing is as described above and will not be repeated here. It may also include CSI-RS measurement period configuration information, CSI-RS time domain resource information, and CSI-RS power configuration information. The above information is used as the first related information. The CSI-RS corresponding to the additionalPCIIndex-r18' can be found in the index of the cell identifier associated with each reference signal in the reference signal measurement resource configuration information. Thus, the CSI-RS can be associated with the cell ID of the adjacent candidate cell (inter-frequency) through the cell identifier information. In addition, the value range and data type of each information field are similar to those in the previous embodiment and will not be repeated here.

[0105] When associating CSI-RS as described above, a group of CSI-RS can be associated with the same-frequency adjacent candidate cells and the different-frequency adjacent candidate cells respectively, that is, the CSI-RS associated with additionalPCIIndex-r18 and additionalPCIIndex-r18' are different (different quantities and / or indexes). In addition, the same-frequency adjacent candidate cells or different-frequency adjacent candidate cells configured by the network device through CSI-RS-MTC-AdditionalPCI-r18 or CSI-RS-MTC-AdditionalPCI-r18' include one or more adjacent candidate cells, whose data type is sequence sequence, and the network device configures the first relevant information and / or the second relevant information for each adjacent candidate cell respectively; in addition, the frequency point for CSI-RS refers to the frequency point of point A.

[0106] In some embodiments, the network equipment of the serving cell may also send reporting configuration information (configured by RRC signaling), which is used to configure the parameters required for the terminal device to measure and report. For example, the reporting configuration information includes the reporting quantity (Report Quantity), the reporting configuration type, etc. For example, the reporting quantity includes L1-RSRP (Reference Signal Receiving Power) or L1-SNR (Signal to Noise Ratio). For details, please refer to the existing technology, and the embodiments of the present application are not limited to this.

[0107] In some embodiments, after configuring reference signal measurement resource configuration information and reporting configuration information, the network equipment of the serving cell and the network equipment of the neighboring candidate cell may send their respective reference signals to be measured to the terminal device. The network equipment configures the time-frequency resources, period, and other information in the reference signal measurement resource configuration information, and sends the corresponding reference signal on the corresponding time-frequency resources, so that the terminal device performs layer 1 measurement on the received reference signal. In 202, the measurement report is carried by the UCI. The terminal device measures the signal quality of the serving cell and / or neighboring candidate cell (including co-frequency and inter-frequency) based on the received reference signal and the first related information and / or the second related information. The measurement result may be L1-RSRP or L1-SNR. This application is not limited to this. The measurement result may include the measurement result of the serving cell, the measurement result of the co-frequency neighboring candidate cell (if the configuration information of the co-frequency neighboring cell is configured, or the second related information is received), and the measurement result of the inter-frequency neighboring candidate cell (if the configuration information of the inter-frequency neighboring cell is configured, or the first related information is received). The measurement result may be a measurement result based on the reference signal SSB or a measurement result based on the CSI-RS. The measurement report may include the measurement results of one or more adjacent candidate cells. The measurement results of inter-frequency adjacent candidate cells may include the measurement results of one frequency point or multiple frequency points. Each frequency point may have one measurement result or multiple measurement results. The specific measurement results included in the measurement report are implemented by the algorithm of the terminal device, and this application is not limited to this.

[0108] In some embodiments, after receiving the measurement report, the network device of the serving cell may select a target cell for handover according to an algorithm and send a handover instruction to the terminal device via layer 1 or layer 2 signaling.

[0109] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0110] Through the above embodiment, by configuring the first relevant information of the layer 1 measurement of the inter-frequency adjacent candidate cell based on the reference signal for the terminal device, it is possible to support the layer 1 / layer 2 switching of the inter-frequency adjacent candidate cell, so that it can be triggered by the measurement result of layer 1, and the service cell can be switched through the layer 1 / layer 2 signaling, which can effectively reduce the system delay, signaling load and communication interruption time.

[0111] Embodiments of the second aspect

[0112] An embodiment of the present application provides a method for sending and receiving information, which is explained from the terminal device side, and the contents that are the same as the embodiment of the first aspect are not repeated.

[0113] FIG3 is a schematic diagram of a method for sending and receiving information according to an embodiment of the present application. As shown in FIG3 , the method includes:

[0114] 301. A terminal device receives first related information of layer 1 measurement of an inter-frequency adjacent candidate cell based on a reference signal sent by a network device;

[0115] 302. The terminal device sends a measurement report to the network device.

[0116] It is worth noting that FIG3 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG3 above.

[0117] In some embodiments, the implementation of 301-302 corresponds to 201-202. For the implementation of various information, please refer to the embodiment of the first aspect and will not be repeated here.

[0118] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0119] Through the above embodiment, by configuring the first relevant information of the layer 1 measurement of the inter-frequency adjacent candidate cell based on the reference signal for the terminal device, it is possible to support the layer 1 / layer 2 switching of the inter-frequency adjacent candidate cell, so that it can be triggered by the measurement result of layer 1, and the service cell can be switched through the layer 1 / layer 2 signaling, which can effectively reduce the system delay, signaling load and communication interruption time.

[0120] The above describes the cell handover method according to the embodiment of the present application with respect to the embodiments of the first and second aspects. FIG4 is a schematic diagram of the cell handover method triggered by layer 1 / layer 2 according to the embodiment of the present application. As shown in FIG4 , the method includes:

[0121] 401. The network device of the serving cell sends reference signal measurement resource configuration information for layer 1 measurement to the terminal device; for example, including the index of the cell identifier associated with each reference signal;

[0122] 402. The network device of the serving cell sends configuration information of the neighboring candidate cell to the terminal device, for example, including the aforementioned first relevant information and / or the aforementioned second relevant information;

[0123] 403. The network device of the serving cell sends the report configuration information to the terminal device;

[0124] 404. The network equipment of the serving cell and / or the network equipment of the configured adjacent candidate cell sends an associated reference signal;

[0125] 405, the terminal device measures the received reference signal (L1-SNR or L1-RSRP);

[0126] 406. The terminal device sends a measurement report to the network device of the serving cell;

[0127] 407 , the network device of the serving cell selects a handover target cell based on the measurement report;

[0128] 408. The network device of the serving cell sends a layer 1 or layer 2 cell handover instruction to the terminal device;

[0129] 409. The terminal device switches to the target cell according to the switching instruction.

[0130] The above embodiments of 401-409 have been described above and will not be repeated here.

[0131] Embodiments of the third aspect

[0132] An embodiment of the present application provides a method for sending and receiving information, which is explained from the perspective of a network device, and the contents that are the same as those in the embodiment of the first aspect will not be repeated.

[0133] FIG5 is a schematic diagram of a method for sending and receiving information according to an embodiment of the present application. As shown in FIG5 , the method includes:

[0134] 501, the network device sends third related information of layer 1 measurement of a neighboring candidate cell based on CSI-RS to the terminal device;

[0135] 502. The network device receives a measurement report sent by the terminal device.

[0136] It is worth noting that FIG5 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG5 above.

[0137] In some embodiments, the CSI-RS is used for measurements of mobility management triggered by layer 1 / layer 2, and the network device of the serving cell can configure reference signal resources for measurements of the current serving cell and adjacent cells, that is, the method may include: the network device sends CSI-RS measurement resource configuration information for layer 1 measurement to the terminal device, and the CSI-RS measurement resource configuration information can be carried by RRC signaling. The following measurement resources and reference signals can be replaced with each other. Regarding the implementation method of the CSI-RS measurement resource configuration information for layer 1 measurement, reference can be made to Example 2, Example 3, or Example 4 of the first aspect embodiment, and the embodiments of the present application are not limited to this.

[0138] In some embodiments, the network equipment of the serving cell may send configuration information for an adjacent candidate cell to the terminal device. The adjacent candidate cell may be an intra-frequency adjacent candidate cell or an inter-frequency adjacent candidate cell, that is, the configuration information includes at least third-related information (carried through RRC signaling) of the adjacent candidate cell layer 1 measurement based on CSI-RS.

[0139] In some embodiments, the third relevant information based on the adjacent candidate cell layer 1 measurement of the CSI-RS includes cell identification information, that is, for the same-frequency adjacent candidate cell or the different-frequency adjacent candidate cell, the third relevant information includes cell identification information. The adjacent candidate cell includes one or more adjacent cells. The implementation method of the cell identification information can refer to the embodiment of the first aspect. Through the index of the cell identifier in the cell identification information, the CSI-RS corresponding to the index of the cell identifier in the cell identification information can be found in the index of the cell identifier associated with each CSI-RS in the reference signal measurement resource configuration information. Thus, through the cell identification information, the CSI-RS and the cell ID of the adjacent candidate cell (same frequency or different frequency) can be associated.

[0140] For example, CSI-RS-MTC-AdditionalPCI-r18 or CSI-RS-MTC-AdditionalPCI-r18', configuration information for adjacent candidate cells based on CSI-RS, may be added to carry the third related information. The implementation of CSI-RS-MTC-AdditionalPCI-r18 or CSI-RS-MTC-AdditionalPCI-r18' may refer to the embodiment of the first aspect and will not be repeated here.

[0141] For example, for inter-frequency adjacent candidate cells, the third relevant information may also include the CSI-RS frequency and / or the CSI-RS subcarrier spacing. For example, a new information field refFreqCSI-RS for the CSI-RS frequency of the inter-frequency adjacent candidate cell and / or an information field CSI-RS-subcarrierSpacing for the CSI-RS subcarrier spacing of the inter-frequency adjacent candidate cell may be added. The specific implementation methods of each information field (whether to include, value range, data type, etc.) are as described above and will not be repeated here. It may also include: at least one of CSI-RS measurement period configuration information, CSI-RS power configuration information, and CSI-RS time-frequency resource information.

[0142] In some embodiments, the configuration information for the same-frequency adjacent candidate cells and the configuration information for the different-frequency adjacent candidate cells based on CSI-RS can be carried using the same information element or information domain, or can also be carried using different information elements or information domains. For details, please refer to the embodiment of the first aspect and will not be repeated here.

[0143] In some embodiments, the implementation of 502 may refer to 202, and the repeated parts will not be repeated.

[0144] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0145] Through the above embodiment, by configuring the third related information of the CSI-RS-based adjacent candidate cell layer 1 measurement for the terminal device, it is possible to support the layer 1 / layer 2 switching of the CSI-RS-based adjacent candidate cell, so that it can be triggered by the layer 1 measurement result, and the serving cell can be switched through the layer 1 / layer 2 signaling, which can support higher-precision synchronization and higher received signal-to-noise ratio SNR after switching, thereby further reducing the system delay, signaling load and communication interruption time.

[0146] Embodiments of the fourth aspect

[0147] An embodiment of the present application provides a method for sending and receiving information, which is explained from the terminal device side, and the contents that are the same as the embodiment of the third aspect are not repeated.

[0148] FIG6 is a schematic diagram of a method for sending and receiving information according to an embodiment of the present application. As shown in FIG6 , the method includes:

[0149] 601, the terminal device receives third related information of the CSI-RS-based layer 1 measurement of the neighboring candidate cell sent by the network device;

[0150] 602. The terminal device sends a measurement report to the network device.

[0151] It is worth noting that FIG6 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG6 above.

[0152] In some embodiments, the implementation of 601-602 corresponds to 501-502. For the implementation of various information, reference can be made to the embodiments of the first and third aspects, which will not be repeated here.

[0153] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0154] Through the above embodiment, by configuring the terminal device with the third related information of the layer 1 measurement of the adjacent candidate cell based on the CSI-RS, it is possible to support the layer 1 / layer 2 switching of the adjacent candidate cell based on the CSI-RS, so that it can be triggered by the measurement result of layer 1, and the serving cell can be switched through the layer 1 / layer 2 signaling, which can support higher-precision synchronization and higher received signal-to-noise ratio SNR after switching, thereby further reducing the system delay, signaling load and communication interruption time.

[0155] The above describes the cell handover method of the embodiment of the present application with respect to the embodiments of the third and fourth aspects. FIG7 is a schematic diagram of the cell handover method triggered by layer 1 / layer 2 in the embodiment of the present application. As shown in FIG7 , the method includes:

[0156] 701. The network device of the serving cell sends CSI-RS measurement resource configuration information for layer 1 measurement to the terminal device; for example, including the index of the cell identifier associated with each CSI-RS;

[0157] 702. The network device of the serving cell sends configuration information of the neighboring candidate cell to the terminal device, for example, including the aforementioned third related information;

[0158] 703, the network device of the serving cell sends the report configuration information to the terminal device;

[0159] 704. The network equipment of the serving cell and / or the network equipment of the configured adjacent candidate cell sends an associated CSI-RS;

[0160] 705, the terminal device measures the received CSI-RS (L1-SNR or L1-RSRP);

[0161] 706. The terminal device sends a measurement report to the network device of the serving cell;

[0162] 707 , the network device of the serving cell selects a handover target cell according to the measurement report;

[0163] 708 , the network device of the serving cell sends a layer 1 or layer 2 cell handover instruction to the terminal device;

[0164] 709. The terminal device switches to the target cell according to the switching instruction.

[0165] The above embodiments 701-709 have been described above and will not be repeated here.

[0166] As described in the aforementioned embodiments of the first to fourth aspects, when the reference signal is a CSI-RS, the cell identifier of the adjacent candidate cell is explicitly specified in the CSI-RS measurement resource configuration information used for Layer 1 measurement. For inter-frequency adjacent candidate cells, the CSI-RS frequency of the inter-frequency adjacent candidate cell and / or the subcarrier spacing of the CSI-RS of the inter-frequency adjacent cell need to be explicitly specified. This differs from the aforementioned embodiments of the first to fourth aspects in that the CSI-RS measurement resource configuration for Layer 1 measurement can also be implicitly configured, which is described below in conjunction with the embodiments of the fifth and sixth aspects.

[0167] Embodiments of the fifth aspect

[0168] An embodiment of the present application provides an information configuration method, which is described from the perspective of a network device.

[0169] FIG8 is a schematic diagram of an information configuration method according to an embodiment of the present application. As shown in FIG8 , the method includes:

[0170] 801, the network device sends QCL configuration information to the terminal device, where the QCL configuration information indicates that the CSI-RS and the SSB of the adjacent cell are in a quasi-co-location relationship;

[0171] The subcarrier spacing of the CSI-RS and the subcarrier spacing of the SSB are predefined or preconfigured to be the same, and / or the frequency of the CSI-RS and the frequency of the SSB are predefined or preconfigured to have a corresponding relationship.

[0172] In some embodiments, to support implicit CSI-RS measurement resource configuration for layer 1 measurement, it is necessary to predefine or preconfigure the CSI-RS subcarrier spacing to be the same as the SSB subcarrier spacing, and / or predefine or preconfigure the CSI-RS frequency and the SSB frequency to have a corresponding relationship, or in other words, the CSI-RS frequency can be derived from the configured SSB frequency. According to this predefinition or preconfiguration, the CSI-RS frequency and subcarrier spacing can be determined based on the configured SSB frequency and SSB subcarrier spacing.

[0173] In some embodiments, by configuring QCL configuration information to indicate that the CSI-RS and the SSB of a neighboring cell are quasi-co-located, the reception of the CSI-RS signal references the SSB of the neighboring cell, that is, the reception QCL of the CSI-RS is directed to the SSB of the neighboring cell, thereby indirectly associating the CSI-RS with the neighboring cell. This QCL configuration information can be carried by the CSI-RS measurement resource configuration information NZP-CSI-RS-Resource.

[0174] For example, the CSI-RS measurement resource configuration information may be expressed in the Abstract Syntax Notation (ASN.1) data format as follows:

[0175] As shown above, the measurement resource configuration information includes the information field qcl-InfoPeriodicCSI-RS, which represents the QCL configuration information of the measurement resource. The QCL configuration information includes the transmission configuration indication state identifier TCI-stateID. The ID of the adjacent cell associated with the transmission configuration indication state identifier (additionalPCI-r17) can be obtained in the configured transmission configuration indication state TCI-State list, and the SSB index (SSB index) of the adjacent cell can be obtained through the qcl-type1 / 2 information field. The terminal device associates the CSI-RS with the adjacent cell according to the QCL configuration information in the CSI-RS measurement resource configuration information, rather than through the explicit association method of adding the cell identifier index in the aforementioned embodiment. That is, if the source reference signal SSB configured by the CSI-RS comes from a neighboring cell (associated with a neighboring cell), then it indirectly indicates that the CSI-RS also comes from a neighboring cell (associated with a neighboring cell), and the measurement of the CSI-RS is a measurement of the signal quality of the adjacent cell (not a measurement of the current serving cell). As mentioned above, in order to support the indirect indication method, the subcarrier spacing of the CSI-RS and the subcarrier spacing of the SSB of the adjacent cell are predefined or preconfigured to be the same, and / or, the frequency of the CSI-RS and the frequency of the SSB of the adjacent cell are predefined or preconfigured to have a corresponding relationship.

[0176] Embodiments of the sixth aspect

[0177] An embodiment of the present application provides an information configuration method, which is described from the perspective of a terminal device.

[0178] FIG9 is a schematic diagram of an information configuration method according to an embodiment of the present application. As shown in FIG9 , the method includes:

[0179] 901. A terminal device receives QCL configuration information sent by a network device, where the QCL configuration information indicates that a CSI-RS and an SSB of a neighboring cell are in a quasi-co-location relationship.

[0180] In which, the terminal device expects that the subcarrier spacing of the CSI-RS and the subcarrier spacing of the SSB are predefined or preconfigured to be the same, and / or, the frequency of the CSI-RS and the frequency of the SSB are predefined or preconfigured to have a corresponding relationship.

[0181] Regarding the implementation of 901, reference may be made to the embodiment of the fifth aspect. The method may further include (not shown): the terminal device receives a CSI-RS signal, and the terminal device receives the CSI-RS signal with reference to the SSB of the adjacent cell. For details, reference may be made to the prior art, which will not be described in detail here.

[0182] Embodiments of the seventh aspect

[0183] The embodiment of the present application provides an information transceiver device, which may be, for example, a network device, or one or more components or assemblies configured in the network device, and the same contents as those in the first or third embodiment will not be repeated.

[0184] FIG10 is a schematic diagram of an information transceiver device according to an embodiment of the present application. As shown in FIG10 , the information transceiver device 1000 includes: a first sending unit 1001 and a first receiving unit 1002 .

[0185] In some embodiments, a first sending unit 1001 sends first relevant information of inter-frequency adjacent candidate cell layer 1 measurement based on a reference signal to a terminal device; a first receiving unit 1002 receives a measurement report sent by the terminal device.

[0186] In some embodiments, the first sending unit 1001 is also used to send reference signal measurement resource configuration information for layer 1 measurement to the terminal device, wherein the reference signal measurement resource configuration information includes a reference signal set identifier, an index of each reference signal in the reference signal set, and an index of a cell identifier associated with each reference signal.

[0187] In some embodiments, the first sending unit 1001 is further used to send second relevant information of the reference signal-based measurement of the same-frequency adjacent candidate cell layer 1 to the terminal device.

[0188] For the implementation of each information and unit, please refer to the embodiment of the first aspect mentioned above, which will not be repeated here.

[0189] In some embodiments, a first sending unit 1001 sends third related information of CSI-RS-based adjacent candidate cell layer 1 measurement to a terminal device; a first receiving unit 1002 receives a measurement report sent by the terminal device.

[0190] In some embodiments, the first sending unit 1001 is also used to send CSI-RS measurement resource configuration information for layer 1 measurement to the terminal device, including a CSI-RS resource set identifier, identifiers of each CSI-RS resource in the CSI-RS resource set, and an index of a cell identifier associated with each CSI-RS resource.

[0191] For the implementation of each information and unit, please refer to the embodiment of the third aspect mentioned above, which will not be repeated here.

[0192] In some embodiments, the information transceiver 1000 can serve as an information configuration device 1000, and the first sending unit 1001 can be used to send QCL configuration information to a terminal device, where the QCL configuration information indicates that the CSI-RS and the SSB of the adjacent cell are in a quasi-co-location relationship; wherein the subcarrier spacing of the CSI-RS and the subcarrier spacing of the SSB are predefined or preconfigured to be the same, and / or the frequency of the CSI-RS and the frequency of the SSB are predefined or preconfigured to have a corresponding relationship. The implementation method thereof can refer to the embodiment of the aforementioned fifth aspect and will not be repeated here.

[0193] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0194] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The information transceiver 1000 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.

[0195] In addition, for the sake of simplicity, FIG10 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0196] Embodiments of the eighth aspect

[0197] The embodiment of the present application provides an information transceiver device, which may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device, and the contents that are the same as those in the second or fourth aspects of the embodiment are not repeated here.

[0198] FIG11 is a schematic diagram of an information transceiver device according to an embodiment of the present application. As shown in FIG11 , the information transceiver device 1100 includes: a second receiving unit 1101 and a second sending unit 1102 .

[0199] In some embodiments, the second receiving unit 1101 receives first relevant information of the reference signal-based heterofrequency adjacent candidate cell layer 1 measurement sent by the network device, or receives second relevant information of the reference signal-based same-frequency adjacent candidate cell layer 1 measurement sent by the network device, or receives third relevant information of the CSI-RS-based adjacent candidate cell layer 1 measurement sent by the network device; the second sending unit 1102 is used to send a measurement report to the network device.

[0200] For the implementation of each information and unit, please refer to the aforementioned second or fourth embodiment, which will not be repeated here.

[0201] In some embodiments, the information transceiver 1100 can serve as an information configuration device 1100, and the second receiving unit 1101 can be used to receive QCL configuration information sent by a network device, wherein the QCL configuration information indicates that the CSI-RS and the SSB of the adjacent cell are in a quasi-co-location relationship; wherein the terminal device expects the subcarrier spacing of the CSI-RS and the subcarrier spacing of the SSB to be predefined or preconfigured to be the same, and / or the frequency of the CSI-RS and the frequency of the SSB to be predefined or preconfigured to have a corresponding relationship. Its implementation method can refer to the embodiment of the aforementioned fifth aspect and will not be repeated here.

[0202] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0203] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The information transceiver 1100 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.

[0204] In addition, for the sake of simplicity, FIG11 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0205] Embodiments of the ninth aspect

[0206] An embodiment of the present application also provides a communication system, and reference may be made to FIG1 . The contents that are the same as those in the first to eighth aspects of the embodiments will not be repeated.

[0207] In some embodiments, the communication system 100 may include at least: a network device 101 and / or a terminal device 102, wherein the network device 101 includes the information transceiver (configuration) device 1000 in the embodiment of the seventh aspect, and the terminal device 102 includes the information transceiver (configuration) device 1100 in the embodiment of the eighth aspect, which will not be repeated here.

[0208] An embodiment of the present application further provides a network device, which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.

[0209] Figure 12 is a schematic diagram illustrating the structure of a network device according to an embodiment of the present application. As shown in Figure 12 , network device 1200 may include a processor 1210 (e.g., a central processing unit (CPU)) and a memory 1220 ; the memory 1220 is coupled to the processor 1210 . The memory 1220 may store various data and may also store an information processing program 1230 , which is executed under the control of the processor 1210 .

[0210] For example, the processor 1210 can be configured to execute a program to implement the information sending and receiving method described in the embodiment of the first or third aspect, or the information configuration method described in the embodiment of the fifth aspect.

[0211] In addition, as shown in FIG12 , network device 1200 may further include: a transceiver 1240 and an antenna 1250, etc.; wherein, the functions of the above components are similar to those in the prior art and are not described in detail here. It is worth noting that network device 1200 does not necessarily include all the components shown in FIG12 ; in addition, network device 1200 may also include components not shown in FIG12 , and reference may be made to the prior art for details.

[0212] The embodiment of the present application also provides a terminal device, but the present application is not limited thereto and may also be other devices.

[0213] Figure 13 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Figure 13 , terminal device 1300 may include a processor 1310 and a memory 1320. Memory 1320 stores data and programs and is coupled to processor 1310. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication or other functions.

[0214] For example, the processor 1310 can be configured to execute a program to implement the information sending and receiving method described in the embodiment of the second or fourth aspect, or the information configuration method described in the embodiment of the sixth aspect.

[0215] As shown in Figure 13 , the terminal device 1300 may further include: a communication module 1330, an input unit 1340, a display 1350, and a power supply 1360. The functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that the terminal device 1300 does not necessarily include all of the components shown in Figure 13 , and these components are not essential. Furthermore, the terminal device 1300 may also include components not shown in Figure 13 , for which reference may be made to the prior art.

[0216] An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the information sending and receiving method described in the embodiment of the second or fourth aspect, or the information configuration method described in the embodiment of the sixth aspect.

[0217] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the information sending and receiving method described in the embodiment of the second or fourth aspect, or the information configuration method described in the embodiment of the sixth aspect.

[0218] An embodiment of the present application also provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the information sending and receiving method described in the embodiment of the first or third aspect, or the information configuration method described in the embodiment of the fifth aspect.

[0219] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the information sending and receiving method described in the embodiment of the first or third aspect, or the information configuration method described in the embodiment of the fifth aspect.

[0220] The above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software. The present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0221] The method / device described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figure and / or one or more combinations of functional block diagrams can correspond to various software modules of the computer program flow or to various hardware modules. These software modules can respectively correspond to the various steps shown in the figure. These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).

[0222] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0223] One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any suitable combination thereof for performing the functions described in this application. One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0224] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.

[0225] Regarding the implementation methods including the above embodiments, the following additional notes are also disclosed:

[0226] 1. A method for sending and receiving information, applied to a network device, characterized in that the method comprises:

[0227] A first sending unit, configured to send first relevant information of an inter-frequency adjacent candidate cell layer 1 measurement based on a reference signal to a terminal device;

[0228] A first receiving unit is configured to receive a measurement report sent by the terminal device.

[0229] 2. The method according to Note 1, wherein the heterofrequency adjacent candidate cells include one or more adjacent cells, and at least one of the center frequency and subcarrier spacing of the heterofrequency candidate adjacent cells and the serving cell is different.

[0230] 3. The method according to Note 1, wherein the first relevant information includes cell identification information, and at least one of reference signal frequency and reference signal subcarrier spacing.

[0231] 4. The method according to Note 1, wherein the first sending unit is also used to send reference signal measurement resource configuration information for layer 1 measurement to the terminal device, and the reference signal measurement resource configuration information includes a reference signal set identifier, an index of each reference signal in the reference signal set, and an index of a cell identifier associated with each reference signal.

[0232] 5. The method according to Note 1, wherein the first sending unit is further used to send second relevant information of the reference signal-based measurement of the same-frequency adjacent candidate cell layer 1 to the terminal device.

[0233] 6. The method according to Note 3 or 5, wherein the second relevant information includes cell identification information.

[0234] 7. The method according to Note 5, wherein the first relevant information and the second relevant information are carried by the same information element or information domain, or by different information elements or information domains.

[0235] 8. The method according to Note 6, wherein the cell identification information of the first relevant information and the cell identification information of the second relevant information are indicated by the same information element or information field, or by different information elements or information fields.

[0236] 9. The method according to Note 3 or 6, wherein the cell identification information includes a cell identification and an index of the cell identification.

[0237] 10. The method according to Note 1 or 5, wherein the first relevant information and / or the second relevant information also includes: at least one of reference signal measurement period configuration information, reference signal power configuration information, and reference signal time-frequency resource information.

[0238] 11. The method according to Note 4, wherein the reference signal measurement resources include at least one of: CSI-RS resources for beam management, SSB resources, CSI-RS (CSI-IM) resources for interference management, and CSI-RS (TRS) resources for time-frequency tracking.

[0239] 12. The method according to Note 4, wherein the reference signal set is used for measurements of layer 1 / layer 2 triggered mobility management.

[0240] 13. The method according to Note 4, wherein the reference signal measurement resource configuration information further includes indication information indicating that the reference signal set is used for measurement of layer 1 / layer 2 triggered mobility management.

[0241] 14. The method according to Note 13, wherein, when the indication information is included in the reference signal measurement resource configuration information, the reference signal measurement resource configuration information includes an index of the cell identifier.

[0242] 15. The method according to Note 1 or 5, wherein the measurement report includes measurement results of same-frequency and / or different-frequency cells.

[0243] 16. The method according to Note 15, wherein the measurement result includes L1-RSRP or L1-SNR.

[0244] 17. The method according to Note 1, wherein the first relevant information is carried via RRC and the measurement report is carried via UCI.

[0245] 18. A method for sending and receiving information, applied to a terminal device, characterized in that the method comprises:

[0246] a second receiving unit configured to receive first relevant information of layer 1 measurement of an inter-frequency adjacent candidate cell based on a reference signal sent by a network device;

[0247] A second sending unit is configured to send a measurement report to the network device.

[0248] 19. The method according to Note 18, wherein the first relevant information includes cell identification information, and at least one of reference signal frequency and reference signal subcarrier spacing.

[0249] 20. An information configuration method, applied to a network device, characterized in that the method comprises:

[0250] The network device sends QCL configuration information to the terminal device, where the QCL configuration information indicates that the CSI-RS and the SSB of the adjacent cell are in a quasi-co-location relationship;

[0251] The subcarrier spacing of the CSI-RS and the subcarrier spacing of the SSB are predefined or preconfigured to be the same, and / or the frequency of the CSI-RS and the frequency of the SSB are predefined or preconfigured to have a corresponding relationship.

[0252] 21. The method according to Note 20, wherein the CSI-RS is used for measurements of layer 1 / layer 2 triggered mobility management.

[0253] 22. The method according to Note 20, wherein the CSI-RS includes at least one of a CSI-RS for beam management, a CSI-RS for interference management (CSI-IM), and a CSI-RS for time-frequency tracking (TRS).

[0254] 23. A method for sending and receiving information, applied to a network device, characterized in that the method comprises:

[0255] The network device sends third related information of the adjacent candidate cell layer 1 measurement based on the CSI-RS to the terminal device;

[0256] The network device receives the measurement report sent by the terminal device.

[0257] 24. The method according to Note 23, wherein the CSI-RS is used for measurement of layer 1 / layer 2 triggered mobility management.

[0258] 25. The method according to Note 23, wherein the third relevant information includes cell identification information.

[0259] 26. The method according to Note 25, wherein, when the cell is an inter-frequency adjacent candidate cell, the third related information further includes: the frequency of CSI-RS and / or the subcarrier spacing of CSI-RS.

[0260] 27. The method according to Supplementary Note 23, wherein the method further comprises:

[0261] The network device sends CSI-RS measurement resource configuration information for layer 1 measurement to the terminal device, including a CSI-RS resource set identifier, identifiers of each CSI-RS resource in the CSI-RS resource set, and an index of a cell identifier associated with each CSI-RS resource.

[0262] 28. The method according to Note 25, wherein the cell identification information includes a cell identification and an index of the cell identification.

[0263] 29. An information configuration method, applied to a terminal device, characterized in that the method comprises:

[0264] The terminal device receives QCL configuration information sent by the network device, where the QCL configuration information indicates that the CSI-RS and the SSB of the adjacent cell are in a quasi-co-location relationship;

[0265] In which, the terminal device expects that the subcarrier spacing of the CSI-RS and the subcarrier spacing of the SSB are predefined or preconfigured to be the same, and / or, the frequency of the CSI-RS and the frequency of the SSB are predefined or preconfigured to have a corresponding relationship.

[0266] 30. A method for sending and receiving information, applied to a terminal device, characterized in that the method comprises:

[0267] The terminal device receives third related information of the CSI-RS-based adjacent candidate cell layer 1 measurement sent by the network device;

[0268] The terminal device sends a measurement report to the network device.

[0269] 31. A network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method as described in any one of Notes 1 to 17 and 20 to 28.

[0270] 32. A terminal device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method as described in any one of Notes 18, 19, 29, or 30.

Claims

1. An information transceiver device, applied to a network device, characterized in that: The device comprises: A first sending unit, which sends first relevant information of layer 1 measurement of an inter-frequency adjacent candidate cell based on a reference signal to a terminal device; A first receiving unit is configured to receive a measurement report sent by the terminal device.

2. The device according to claim 1, wherein: The inter-frequency adjacent candidate cells include one or more adjacent cells, and at least one of the central frequency point and subcarrier spacing of the inter-frequency candidate adjacent cell and the serving cell is different.

3. The device according to claim 1, wherein: The first relevant information includes cell identification information, and at least one of a reference signal frequency and a reference signal subcarrier spacing.

4. The device according to claim 1, wherein: The first sending unit is also used to send reference signal measurement resource configuration information for layer 1 measurement to the terminal device, and the reference signal measurement resource configuration information includes a reference signal set identifier, an index of each reference signal in the reference signal set, and an index of a cell identifier associated with each reference signal.

5. The device according to claim 1, wherein: The first sending unit is also used to send second related information of the same-frequency adjacent candidate cell layer 1 measurement based on the reference signal to the terminal device.

6. The device according to claim 5, wherein: The second related information includes cell identification information.

7. The device according to claim 5, wherein: The first relevant information and the second relevant information are carried by the same information element or information domain, or by different information elements or information domains.

8. The device according to claim 6, wherein: The cell identification information of the first related information and the cell identification information of the second related information are indicated by using the same information element or information field, or by using different information elements or information fields.

9. The device according to claim 3 or 6, wherein: The cell identification information includes a cell identification and an index of the cell identification.

10. The device according to claim 1 or 5, wherein: The first relevant information and / or the second relevant information also includes: at least one of reference signal measurement period configuration information, reference signal power configuration information, and reference signal time-frequency resource information.

11. The device according to claim 4, wherein: The reference signal measurement resources include: at least one of: CSI-RS resources for beam management, SSB resources, CSI-RS (CSI-IM) resources for interference management, and CSI-RS (TRS) resources for time-frequency tracking.

12. The device according to claim 4, wherein: The reference signal set is used for measurements of layer 1 / layer 2 triggered mobility management.

13. The device according to claim 4, wherein: The reference signal measurement resource configuration information further includes indication information indicating that the reference signal set is used for measurement of layer 1 / layer 2 triggered mobility management.

14. The device according to claim 13, wherein: When the reference signal measurement resource configuration information includes the indication information, the reference signal measurement resource configuration information includes the index of the cell identifier.

15. The device according to claim 1 or 5, wherein: The measurement report includes measurement results of intra-frequency and / or inter-frequency cells.

16. The device according to claim 15, wherein: The measurement result includes L1-RSRP or L1-SNR.

17. The device according to claim 1, wherein: The first related information is carried by RRC, and the measurement report is carried by UCI.

18. An information transceiver device, applied to a terminal device, characterized in that: The device comprises: A second receiving unit, which receives first relevant information of layer 1 measurement of an inter-frequency adjacent candidate cell based on a reference signal sent by a network device; A second sending unit is configured to send a measurement report to the network device.

19. The device according to claim 18, wherein The first relevant information includes cell identification information, and at least one of a reference signal frequency and a reference signal subcarrier spacing.

20. A communication system, wherein: The communication system includes a terminal device and / or a network device, the terminal device includes the information transceiver device according to claim 18, and the network device includes the information transceiver device according to claim 1.

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