Cell measurement method and device, equipment and storage medium
By introducing the L1 measurement mechanism in the mobile communication system, performing neighbor area L1 measurement based on the L1 measurement configuration, solving the problems of slow processing speed and large signaling overhead of the L3 measurement mechanism, and achieving low-latency service interruption in frequent switching scenarios.
Patent Information
- Application Number
- CN202510074900.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2022-04-13
- Publication Date
- 2025-04-29
AI Technical Summary
In the prior art, the L3 measurement mechanism has a slow processing speed, and the signaling overhead caused by frequent RRC switching is high, making it difficult to achieve fast switching in the context of frequent switching.
By introducing an L1 measurement mechanism between the terminal device and the network device, neighboring area L1 measurement is performed based on the L1 measurement configuration, reducing service interruption delay.
Compared with the handover based on L3 signaling trigger, the handover triggered by L1/L2 signaling trigger has the advantage of low processing delay and small interrupt delay. It is suitable for frequent handover scenarios and reduces the service interruption delay of terminal devices.
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Figure CN119907060A_ABST
Abstract
Description
[0001] This application is a divisional application. The application number of the parent application is 202280093776.5, the application date is April 13, 2022, and the name of the invention is "Cell measurement method, device, equipment and storage medium". Technical Field
[0002] The embodiments of the present application relate to the field of communication technology, and in particular to a cell measurement method, apparatus, device and storage medium. Background Art
[0003] In order to perform inter-cell mobility management control on terminal devices, network devices usually configure layer 3 (Layer 3, L3) measurement configuration for terminal devices, and the terminal devices perform neighboring cell measurements based on the L3 measurement configuration configured by the network devices. For example, L3 refers to Radio Resource Control (RRC).
[0004] However, the L3 measurement mechanism in the related art has a slow processing speed (because of the L3 filtering process, which requires averaging multiple sampling results) and requires an RRC process to trigger switching. When the L3 measurement mechanism is used to measure high-frequency cells, the frequent RRC switching causes high signaling overhead, and the L3 measurement mechanism is not conducive to achieving fast switching in the context of frequent switching. Summary of the invention
[0005] The embodiment of the present application provides a cell measurement method, apparatus, device and storage medium, which reduces the service interruption delay of terminal devices in frequent switching scenarios. The technical solution is as follows:
[0006] According to one aspect of an embodiment of the present application, a cell measurement method is provided, the method being performed by a terminal device, the method comprising:
[0007] Based on the L1 measurement configuration, perform neighboring cell L1 measurement.
[0008] According to another aspect of an embodiment of the present application, a cell measurement method is provided, the method being performed by a network device, the method comprising:
[0009] The L1 measurement configuration is sent to the terminal device, and the L1 measurement configuration is used by the terminal device to perform neighboring cell L1 measurement.
[0010] According to one aspect of an embodiment of the present application, a cell measurement device is provided, the device comprising:
[0011] The measurement module is used to perform neighboring cell L1 measurement based on the L1 measurement configuration.
[0012] According to one aspect of an embodiment of the present application, a cell measurement device is provided, the device comprising:
[0013] The configuration module is used to send L1 measurement configuration to the terminal device, and the L1 measurement configuration is used by the terminal device to perform neighboring cell L1 measurement.
[0014] According to one aspect of an embodiment of the present application, a communication device is provided, wherein the communication device includes a processor; the processor implements the above-mentioned cell measurement method by executing a computer program.
[0015] According to one aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is used for a processor to execute to implement the above-mentioned cell measurement method.
[0016] According to one aspect of an embodiment of the present application, a chip is provided. The chip includes a programmable logic circuit and / or program instructions. When the chip is running, it is used to implement the above-mentioned cell measurement method.
[0017] According to one aspect of an embodiment of the present application, a computer program product is provided. The computer program product includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the above-mentioned cell measurement method.
[0018] The technical solution provided in the embodiments of the present application can bring the following beneficial effects:
[0019] Compared with switching triggered by L3 signaling, switching triggered by L1 / L2 signaling has the advantages of low processing delay and small interruption delay. However, switching triggered by L1 / L2 signaling requires the assistance of L1 measurement mechanism, but the L1 measurement mechanism in the related technology only involves L1 measurement in the service cell, which cannot meet the demand for L1 measurement in non-service cells. The method provided in the present application expands the scope of use of L1 measurement, and provides a more adaptive and efficient measurement mechanism for the switching method triggered by L1 / L2 signaling. Compared with switching triggered by L3 measurement, it is more suitable for the switching method triggered by L1 / L2 signaling, and reduces the service interruption delay of terminal equipment in frequent switching scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0021] Figure 1 is a schematic diagram of a mobile communication system provided by an exemplary embodiment of the present application;
[0022] Figure 2 is a flowchart of a cell measurement method provided by an exemplary embodiment of the present application;
[0023] Figure 3 is a flowchart of a cell measurement method provided by another exemplary embodiment of the present application;
[0024] Figure 4 is a flowchart of a cell measurement method provided by another exemplary embodiment of the present application;
[0025] Figure 5 is a flowchart of a cell measurement method provided by another exemplary embodiment of the present application;
[0026] Figure 6 is a flowchart of a cell measurement method provided by another exemplary embodiment of the present application;
[0027] Figure 7 is a flowchart of a cell measurement method provided by another exemplary embodiment of the present application;
[0028] Figure 8 is a flowchart of a cell measurement method provided by another exemplary embodiment of the present application;
[0029] Fig. 9 is a flowchart of a cell measurement method provided by another exemplary embodiment of the present application;
[0030] Fig.10 is a flowchart of a cell measurement method provided by another exemplary embodiment of the present application;
[0031] Fig.11 is a flowchart of a cell measurement method provided by another exemplary embodiment of the present application;
[0032] Fig.12 is a structural block diagram of a cell measurement device provided by an exemplary embodiment of the present application;
[0033] Fig.13 is a structural block diagram of a cell measurement device provided by another exemplary embodiment of the present application;
[0034] Fig.14 It is a structural diagram of a communication device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION
[0035] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.
[0036] First, let me introduce some relevant knowledge involved in this application:
[0037] L3 (Layer 3) measurement: In order to perform inter-cell mobility management and control on terminal devices, network devices usually configure L3 measurement-related configurations for terminal devices, and the terminal devices perform neighboring cell measurements based on the L3 measurement-related configurations configured by the network devices.
[0038] When L3 measures a neighboring cell, it is necessary to know the frequency and PCI (Physical Cell Identity) information of the cell at the same time. The network device sends the frequency information to the terminal device through dedicated signaling or system broadcast messages. Optionally, the network device can further provide the terminal device with one or more PCI information associated with the frequency to be measured, thereby assisting the terminal device to perform measurements more quickly, but the PCI information is an optional configuration.
[0039] If the network device only configures the frequency information for the terminal device, the terminal device needs to identify all cells that may be measured at the frequency through implementation. There are 1008 types of PCI in the New Radio (NR) system. Theoretically, for a frequency to be measured, the terminal device needs to try up to 1008 times to identify all the cells under the frequency.
[0040] For a terminal device in a connected state, the network device sends the L3 measurement related configuration to the terminal device through dedicated signaling. The L3 measurement related configuration sent by the dedicated signaling includes at least the following parts:
[0041] (1) At least one MO (Measurement Object) that needs to be added or modified, and / or at least one MO that needs to be deleted;
[0042] An MO usually includes an identifier of a frequency to be measured, and an SMTC (Synchronization signal / physical broadcast channel (SS / PBCH) block Measurement Time Configuration) configuration associated with the measurement reference signal corresponding to the frequency to be measured. Among them, the identifier of the frequency to be measured is used to inform the MO of the corresponding frequency to be measured. The measurement reference signal corresponding to the frequency to be measured can be SSB (Synchronization Signal / physical broadcast channel Block) (also abbreviated as SS / PBCH block) or CSI-RS (Channel State Information Reference Signal). The SMTC configuration associated with the measurement reference signal is used to inform the time domain position of the measurement reference signal, that is, the measurement window information. Usually, the measurement reference signal appears periodically, so the SMTC window also appears periodically. The SMTC configuration usually includes the measurement period, measurement offset and measurement length configuration.
[0043] (2) at least one measurement reporting configuration that needs to be added or modified, and / or at least one measurement reporting configuration that needs to be deleted;
[0044] Based on the MO configured by the network device, the terminal device can obtain the measurement results of the neighboring cell L3 measurement, but the terminal device still does not know when to report the measurement results and the format of the reported measurement results, so in addition to the MO configuration, the network device will also configure the measurement reporting configuration to control the measurement reporting behavior of the terminal device. Usually the measurement reporting configuration includes information such as the measurement reference signal, the measurement event and the measurement amount, wherein the measurement reference signal can be SSB or CSI-RS, the measurement event can be a periodically triggered measurement event or an event-triggered measurement event, and the measurement amount can be at least one of RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality) or SINR (Signal to Interference plus Noise Ratio).
[0045] (3) at least one measurement ID that needs to be added or modified, and / or at least one measurement ID that needs to be deleted;
[0046] One measurement ID is associated with one MO and one measurement reporting configuration, thereby realizing a many-to-many mapping relationship between multiple MOs and multiple measurement reporting configurations. The measurement report is reported in units of measurement ID, that is, one measurement report includes the measurement result corresponding to one measurement ID.
[0047] L1 (Layer 1) measurement: In the high frequency background, the cell usually uses a multi-beam method for communication. As the terminal device moves in the cell, the best service beam of the terminal device may change. In order to allow the network device to adjust the service beam of the terminal device in time, the relevant technology introduces beam management content. Since the beam management of the terminal device in the idle state or inactive state belongs to the terminal device implementation, the beam management content in the relevant technology is only for the terminal device in the connected state. Exemplarily, layer 1 refers to the physical layer.
[0048] Serving Cell: includes at least a primary cell (PCell) and may optionally include at least one of a secondary cell (SCell) and a primary secondary cell (PSCell). It refers to a cell that establishes a radio resource control (RRC) connection with a terminal device and provides services to the terminal device.
[0049] Neighbor Cell (NCell): also known as neighbor cell (or adjacent cell, neighboring cell, etc.), refers to other cells other than the serving cell currently accessed by the terminal device.
[0050] Figure 1 The structure diagram of a mobile communication system provided by an embodiment of the present application is shown. The mobile communication system may be an LTE system or the fifth generation mobile communication technology (5G), also known as an NR system. The mobile communication system includes: a network device 120 and a terminal device 140.
[0051] The network device 120 may be a base station, which may be used to convert received wireless frames to and from IP packets, and may also coordinate the management of attributes of the air interface. For example, the base station may be an evolved base station (eNB or e-NodeB, evolutionary Node B) in LTE, or a base station using a centralized distributed architecture in a 5G system.
[0052] Optional, Figure 1In the mobile communication system shown, different network devices 120 correspond to their own wireless signal coverage range (circular area with network device 120 as the center), and the wireless signal coverage range is called a cell, and there is an intersection between different cells. In other possible implementations, the same network device 120 can correspond to multiple cells, and each cell corresponds to a different identifier, which is not limited in the embodiments of the present application.
[0053] The network device 120 and the terminal device 140 establish a wireless connection through a wireless air interface. Optionally, the wireless air interface is a wireless air interface based on the LTE (Long Term Evolution) standard; or, the wireless air interface is a wireless air interface based on the 5G standard, such as the wireless air interface is NR; or, the wireless air interface may also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.
[0054] The terminal device 140 may refer to a device that provides voice and / or data connectivity to a user. The terminal device may communicate with one or more core networks via a radio access network (RAN). The terminal device 140 may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device, for example, a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device. For example, a subscriber unit (Subscriber Unit), a subscriber station (Subscriber Station), a mobile station (Mobile Station), a mobile station (Mobile), a remote station (RemoteStation), an access point (Access Point), a remote terminal device (RemoteTerminal), an access terminal device (AccessTerminal), a user device (User Terminal), a user agent (UserAgent), a user device (User Device), or a user terminal device (User Equipment).
[0055] The cell measurement method provided in each embodiment of the present application is used in a scenario where the terminal device 140 performs signal measurement on a neighboring cell in an RRC idle state, an RRC inactive state, or an RRC connected state.
[0056] Various embodiments will be described in detail below.
[0057] Figure 2 A flowchart of a cell measurement method provided by an exemplary embodiment of the present application is shown, and the method is illustrated by taking the method being executed by a terminal device as an example. The method includes:
[0058] Step 220, performing neighboring cell L1 measurement based on the L1 measurement configuration;
[0059] In some embodiments, the terminal device performs neighbor cell L1 measurement based on the measurement reference signal configuration for performing neighbor cell L1 measurement;
[0060] Alternatively, the terminal device performs the neighboring cell L1 measurement based on the measurement reference signal configuration used to perform the neighboring cell L1 measurement and the measurement interval configuration used to perform the neighboring cell L1 measurement;
[0061] Alternatively, the terminal device performs the neighbor cell L1 measurement based on the measurement reference signal configuration for performing the neighbor cell L1 measurement, the measurement interval configuration for performing the neighbor cell L1 measurement, and the L1 measurement interval sharing configuration for performing the neighbor cell L1 measurement.
[0062] In some embodiments, the L1 measurement configuration for performing neighbor cell L1 measurement is configured through any one of the following messages:
[0063] RRC (Radio Resource Control) messages;
[0064] System broadcast messages;
[0065] MAC CE (Media Access Control Control Element) message;
[0066] DCI (Downlink Control Information) message.
[0067] In some embodiments, the L1 measurement configuration for performing neighboring cell L1 measurement may also be configured to be added, updated, deleted, or deactivated through any of the following messages:
[0068] RRC messages;
[0069] System broadcast messages;
[0070] MAC CE message;
[0071] DCI message.
[0072] It should be noted that "perform neighboring cell L1 measurement" in step 220 may be replaced by "perform serving cell L1 measurement". In this case, "serving cell L1 measurement" includes serving cell L1 measurement and neighboring cell L1 measurement, because when performing the L1 measurement task, the network device sends the relevant configuration of the serving cell L1 measurement and the relevant configuration of the neighboring cell L1 measurement to the terminal device, and the terminal device may not distinguish between the measurement of the serving cell and the measurement of the neighboring cell. Exemplarily, the network device sends the L1 measurement-related configuration of the serving cell of frequency 1 and PCI 1, the neighboring cell of frequency 1 and PCI 2, and the neighboring cell of frequency 1 and PCI 3 to the terminal device, and the terminal device performs L1 measurement of the above cells. Under one definition rule, the L1 measurement of the service cell only includes the L1 measurement of the cell corresponding to frequency 1 and PCI 1, while the L1 measurement of the cell corresponding to frequency 1 and PCI 2 and the cell corresponding to frequency 1 and PCI 3 are called neighboring cell L1 measurement; under another definition rule, the L1 measurement of the cell corresponding to frequency 1 and PCI 1 and the L1 measurement of the cell corresponding to frequency 1 and PCI 2 and the cell corresponding to frequency 1 and PCI 3 are collectively referred to as "service cell L1 measurement" in a broad sense. This application does not limit the above definition rules.
[0073] In summary, based on the L1 measurement configuration, the terminal device can perform neighboring cell L1 measurement, which expands the scope of use of L1 measurement. Compared with the L3 measurement mechanism, the L1 measurement mechanism reduces the service interruption delay of the terminal device in frequent switching scenarios.
[0074] Figure 3 A flowchart of a cell measurement method provided by an exemplary embodiment of the present application is shown, and the method is illustrated by taking the method being executed by a terminal device as an example. The method includes:
[0075] Step 320: Perform neighboring cell L1 measurement based on the measurement reference signal configuration.
[0076] In some embodiments, the L1 measurement configuration in step 220 includes: a measurement reference signal configuration for performing neighboring cell L1 measurement. Optionally, the measurement reference signal includes an SSB, and the measurement reference signal configuration includes a configuration corresponding to an SSB resource of the neighboring cell to be measured; or, the measurement reference signal includes a CSI-RS, and the measurement reference signal configuration includes a configuration corresponding to a CSI-RS resource of the neighboring cell to be measured; or, the measurement reference signal includes an SSB and a CSI-RS, and the measurement reference signal configuration includes a configuration corresponding to an SSB resource of the neighboring cell to be measured and a configuration corresponding to a CSI-RS resource of the neighboring cell to be measured.
[0077] For the case where the measurement reference signal includes SSB, in some embodiments, the configuration corresponding to the SSB resource of the neighboring cell to be measured includes at least one of the following:
[0078] The cell ID of the neighboring cell to be measured;
[0079] At least one SSB identifier of the neighboring cell to be measured;
[0080] The reference signal measurement window configuration corresponding to the SSB resource of the neighboring cell to be measured.
[0081] Optionally, the reference signal measurement window configuration is used to indicate the time domain resource location of the SSB resource of the neighboring cell to be measured, so as to facilitate the terminal device to accurately measure the SSB reference signal of the neighboring cell and obtain the measurement results.
[0082] Optionally, the configuration methods of the reference signal measurement window configuration include at least the following three.
[0083] The first possible configuration mode: the neighboring cell L1 measurement completely reuses the measurement window configuration configured for the corresponding frequency point in the L3 measurement configuration;
[0084] Optionally, the neighboring cell L1 measurement completely reuses the measurement window configuration configured for the corresponding frequency point in the L3 measurement configuration, and can be replaced by the measurement window configuration corresponding to the neighboring cell L1 measurement being the same as the measurement window configuration configured for the corresponding frequency point in the L3 measurement configuration.
[0085] In some embodiments, the L3 measurement configuration is used by the terminal device to perform L3 measurement on the neighboring cell based on the L3 measurement configuration. The L3 measurement configuration is configured with a measurement window configuration corresponding to the frequency point configuration, as shown in the following Table 1:
[0086] Table 1
[0087]
[0088] Wherein, N is a positive integer greater than or equal to 1.
[0089] Exemplarily, the neighboring cell L1 measurement is the neighboring cell L1 measurement of frequency point 2. If the neighboring cell L1 measurement reuses the measurement window configuration configured for the corresponding frequency point in the L3 measurement configuration, then the neighboring cell L1 measurement of frequency point 2 should use the measurement window configuration 2 associated with the frequency point identifier 2 in Table 1.
[0090] The second possible configuration mode: the neighboring cell L1 measurement independently configures the corresponding measurement window configuration, that is, the neighboring cell L1 measurement and the L3 measurement each independently configure the measurement window configuration;
[0091] Optionally, the measurement window configuration corresponding to the independent configuration of the neighboring cell L1 measurement can be replaced by the measurement window configuration corresponding to the neighboring cell L1 measurement being different from the measurement window configuration configured for the corresponding frequency point in the L3 measurement configuration, or the measurement window configuration corresponding to the neighboring cell L1 measurement being independent of the measurement window configuration configured for the corresponding frequency point in the L3 measurement configuration.
[0092] In some embodiments, the measurement window configuration in the L1 measurement configuration is as shown in Table 2 below:
[0093] Table 2
[0094]
[0095] Wherein, M is a positive integer greater than or equal to 1.
[0096] In some embodiments, the measurement window configuration corresponding to the L1 measurement in Table 2 is configured according to the PCI granularity; or, it is configured according to the frequency point and PCI combination granularity; or, it is configured according to the cell granularity; or, the measurement window configuration corresponding to the L1 measurement is configured according to the SSB resource or CSI-RS resource granularity. This application does not limit the configuration granularity on which the measurement window configuration corresponding to the L1 measurement is based.
[0097] Optionally, a set of measurement window configurations is configured according to the PCI granularity, that is, one PCI or a group of PCIs (a group of PCIs corresponds to the same frequency point);
[0098] Optionally, a set of measurement window configurations is configured according to the frequency point and PCI combination granularity, that is, a combination of a frequency point and PCI or a combination of a group of frequency points and PCIs;
[0099] Optionally, a measurement window configuration is configured according to the cell granularity, that is, a set of measurement window configurations is configured for one cell identifier or a group of cell identifiers;
[0100] Optionally, the granularity of the SSB resource or CSI-RS resource is configured, that is, a set of measurement window configurations corresponds to a set of SSB resource configurations and / or a set of CSI-RS resource configurations.
[0101] The third possible configuration mode: the neighboring cell L1 measurement reuses part of the measurement window configuration configured for the corresponding frequency point in the L3 measurement configuration;
[0102] Optionally, the neighboring cell L1 measurement reuses part of the configuration in the measurement window configuration configured for the corresponding frequency point in the L3 measurement configuration, and can be replaced by part or all of the configuration in the measurement window configuration corresponding to the neighboring cell L1 measurement being the same as part or all of the configuration in the measurement window configuration configured for the corresponding frequency point in the L3 measurement configuration.
[0103] The third possible configuration method is a combination of the first possible configuration method and the second possible configuration method. Optionally, the measurement window configuration includes three parameters: the period of the reference signal measurement window, the offset within the period of the reference signal measurement window, and the reference signal measurement window duration configuration. However, if the measurement window configuration corresponding to the L3 measurement of the same frequency domain resource is the same as the measurement window configuration corresponding to the L1 measurement, the measurement window configuration corresponding to the L1 measurement of the frequency domain resource only needs to configure the difference part, and the rest of the measurement window configuration corresponding to the L3 measurement of the frequency domain resource is still reused. This method can save configuration signaling overhead.
[0104] In some embodiments, a third possible configuration is shown in Table 3 below:
[0105] Table 3
[0106] The measurement window configuration corresponding to L1 measurement contains the following information: Parameter 1: The period of the reference signal measurement window Parameter 2: The offset within the period in which the reference signal measurement window appears Parameter 3: Reference signal measurement window duration configuration
[0107] As shown in Table 3, if some parameters in the measurement window configuration corresponding to the neighboring cell L1 measurement are not configured or do not appear, the parameter value is considered to be the same as the same parameter value in the measurement window configuration corresponding to the L3 measurement configuration of the same frequency domain resource; on the contrary, if some parameters in the measurement window configuration corresponding to the neighboring cell L1 measurement are configured or appear, the corresponding parameters contained in the measurement window configuration corresponding to the neighboring cell L1 measurement are used to perform the neighboring cell L1 measurement.
[0108] Exemplarily, for a frequency domain resource, the measurement window configuration corresponding to the frequency domain resource in the L1 measurement configuration only includes parameter 1, then parameters 2 and 3 in the L1 measurement window configuration corresponding to the frequency domain resource should use parameters 2 and 3 in the measurement window configuration corresponding to the L3 measurement configuration of the same frequency domain resource.
[0109] In some embodiments, for the second possible configuration manner and / or the third possible configuration manner, the reference signal measurement window configuration includes at least one of the following:
[0110] The period during which the reference signal measurement window appears;
[0111] The offset within the period in which the reference signal measurement window appears;
[0112] The duration of the reference signal measurement window;
[0113] The cell identification information corresponding to the time reference cell associated with the reference signal measurement window.
[0114] Since the time domain measurement window corresponding to the reference signal measurement window configuration is a relative time window, a reference time needs to be determined in order to work. In general, the reference time corresponding to the reference signal measurement window configuration is the service cell time. At this time, the cell identification information corresponding to the time reference cell associated with the reference signal measurement window does not appear or is not configured, indicating that the reference signal measurement window uses the service cell time as the reference time by default; but if the reference time corresponding to the reference signal measurement window is not the service cell, it is necessary to explicitly indicate which cell's time is used as the reference time for the reference signal measurement window through the cell identification information corresponding to the time reference cell associated with the reference signal measurement window.
[0115] In some other embodiments, the third possible configuration mode can be further optimized:
[0116] The reference signal measurement window configuration of L1 only configures the difference part of different values of the same parameter.
[0117] Exemplarily, for a frequency domain resource, the reference signal measurement window configuration corresponding to the frequency domain resource in the L1 measurement configuration only contains the difference part of parameter 1, then parameters 2 and 3 in the reference signal measurement window configuration corresponding to the frequency domain resource should use parameters 2 and 3 in the reference signal window configuration corresponding to the L3 measurement configuration of the same frequency domain resource.
[0118] The value of parameter 1 in the reference signal window configuration of the L1 measurement corresponding to the frequency domain resource is equal to the difference between parameter 1 in the reference signal window configuration corresponding to the L3 measurement of the same frequency domain resource plus or minus parameter 1 contained in the reference signal window configuration corresponding to the frequency domain resource in the L1 measurement configuration.
[0119] In a further optimized third possible implementation, the reference signal measurement window configuration includes at least one of the following:
[0120] The deviation value of the first period relative to the second period, where the first period is the period of the reference signal measurement window in the L1 measurement configuration, and the second period is the corresponding period in the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration;
[0121] The deviation value of the first offset relative to the second offset, the first offset is the offset within the period in which the reference signal measurement window appears in the L1 measurement configuration, and the second offset is the offset within the period corresponding to the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration;
[0122] ·The deviation value of the first duration relative to the second duration, the first duration is the duration of the reference signal measurement window in the L1 measurement configuration, and the second duration is the duration of the corresponding reference signal measurement window in the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration.
[0123] It can be understood that, when the L1 measurement configuration includes a reference signal measurement window configuration, the second or third possible configuration method is executed; when the L1 measurement configuration does not include a reference signal measurement window configuration, the terminal device adopts the above-mentioned first possible configuration method to determine the reference signal measurement window required to perform the neighboring cell L1 measurement.
[0124] In some embodiments, based on the above-mentioned first to third possible configuration methods, the terminal device also includes, before executing step 320: when the reference signal measurement window configuration does not appear or is not configured during a configuration process, using the reference signal measurement window configuration of the last configuration process, or using the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration.
[0125] In the case where the measurement reference signal includes a CSI-RS, in some embodiments, the configuration corresponding to the CSI-RS resource of the neighboring cell to be measured includes at least one of the following:
[0126] The cell ID of the neighboring cell to be measured;
[0127] The logical identifier corresponding to at least one CSI-RS resource of the neighboring cell to be measured;
[0128] The time domain resource configuration corresponding to at least one CSI-RS resource of the neighboring cell to be measured;
[0129] Frequency domain resource configuration corresponding to at least one CSI-RS resource of the neighboring cell to be measured;
[0130] The QCL (Quasi Co-Location) reference signal configuration associated with at least one CSI-RS resource of the neighboring cell to be measured.
[0131] Optionally, the type of the quasi-co-site reference signal corresponding to the quasi-co-site QCL reference signal configuration is SSB or CSI-RS.
[0132] It should be noted that "performing neighboring cell L1 measurement" in step 320 may be replaced by "performing serving cell L1 measurement". In this case, "serving cell L1 measurement" includes serving cell L1 measurement and neighboring cell L1 measurement. For specific explanation, please refer to the corresponding part description of step 220, which will not be repeated here.
[0133] In summary, the L1 measurement configuration includes the measurement reference signal configuration, and further provides an implementation method for the L1 measurement configuration to perform neighboring cell L1 measurement. The neighboring cell measurement is quickly implemented through the L1 measurement, ensuring the low-latency measurement requirements of the L1 / L2 switching mechanism.
[0134] based on Figure 3 In the optional embodiment shown, the measurement reference signal configuration may be configured according to different granularities. Optionally, the configuration according to different granularities includes at least the following three methods:
[0135] The measurement reference signal configuration is configured according to the PCI granularity;
[0136] In some embodiments, the configuration of the measurement reference signal according to the PCI granularity includes two possible meanings.
[0137] 1. The measurement reference signal configuration is directly associated with the PCI information;
[0138] Optionally, the measurement reference signal configuration also includes PCI information, and a set of L1 measurement configurations corresponding to the SSB resources of the neighboring cells to be measured and / or L1 measurement configurations corresponding to the CSI-RS resources of the neighboring cells to be measured are directly associated with each PCI. Table 4 shows a schematic diagram of the direct association of the measurement reference signal configuration with the PCI granularity.
[0139] Table 4
[0140]
[0141] Exemplarily, Table 4 shows a situation where the measurement reference signal configuration includes three PCI identifiers, and each PCI identifier is associated with a group of L1 measurement configurations corresponding to SSB resources of neighboring cells to be measured and / or L1 measurement configurations corresponding to CSI-RS resources of neighboring cells to be measured.
[0142] Of course, the present application does not exclude the configuration form of a set of PCI identifiers configuring a set of L1 measurement configurations corresponding to the SSB resources of the neighboring area to be measured and / or the L1 measurement configurations corresponding to the CSI-RS resources of the neighboring area to be measured, as shown in Table 5.
[0143] Table 5
[0144]
[0145] The difference from Table 4 is that a PCI identifier list in Table 5 contains one or more PCI identifiers, and each PCI identifier list is associated with a group of L1 measurement configurations corresponding to SSB resources of neighboring cells to be measured and / or L1 measurement configurations corresponding to CSI-RS resources of neighboring cells to be measured.
[0146] 2. The measurement reference signal configuration is indirectly associated with the PCI information;
[0147] Optionally, the measurement reference signal configuration also includes PCI information, and each PCI is indirectly associated with a set of L1 measurement configurations corresponding to SSB resources of the neighboring cell to be measured and / or L1 measurement configurations corresponding to CSI-RS resources of the neighboring cell to be measured.
[0148] Table 6 shows a schematic diagram of indirect association between measurement reference signal configuration and PCI information.
[0149] Table 6
[0150]
[0151] Table 7 shows a schematic diagram of the structure of configuration information related to measurement reference signal configuration.
[0152] Table 7
[0153]
[0154] Combining Table 6 and Table 7, it can be seen that the measurement reference signal configuration does not directly include a PCI identifier or a PCI identifier list, but each set of L1 measurement configurations corresponding to the SSB resources of the neighboring area to be measured and / or the L1 measurement configurations corresponding to the CSI-RS resources of the neighboring area to be measured are indirectly associated with a PCI identifier or a group of PCI identifiers (i.e., a PCI identifier list) through a logical identifier (i.e., logical identifier 1 or logical identifier 2 or logical identifier 3). The advantage of indirect association is that if the PCI-related parameters in Table 7 appear multiple times in other configuration parameters (such as the measurement reference signal configuration in Table 6), other configuration parameters only need to add the logical identifier corresponding to Table 7 to their own configuration to achieve indirect parameter association, which saves more signaling overhead than directly adding PCI-related parameters each time.
[0155] In some embodiments, the measurement reference signal configuration is configured according to the PCI granularity (regardless of whether it is the direct association or the indirect association), and the frequency corresponding to these PCI information is the same as the service cell frequency of the terminal device by default.
[0156] The measurement reference signal configuration is configured according to the frequency point and PCI combination granularity;
[0157] In some embodiments, the configuration method according to the frequency point and PCI combination granularity is similar to the configuration method of the above-mentioned Tables 4 to 7, and also includes two possible meanings: direct association method (similar to the form of Tables 4 and 5) and indirect association method (similar to the form of Tables 6 and 7), except that the PCI identifier in Tables 4 to 7 is replaced by a combination of frequency point identifier and PCI identifier; or, the PCI identifier list is replaced by a combination list of frequency point identifier and PCI identifier.
[0158] Optionally, the measurement reference signal configuration is configured according to the frequency and PCI combination granularity (regardless of the direct association or indirect association), and the frequency corresponding to the frequency identifier is the frequency corresponding to the service cell or is an inter-frequency frequency different from the frequency corresponding to the service cell.
[0159] Optionally, the measurement reference signal configuration includes a measurement reference signal configuration corresponding to a co-frequency neighboring cell of a frequency point corresponding to the serving cell;
[0160] Optionally, the measurement reference signal configuration includes a measurement reference signal configuration corresponding to an inter-frequency neighboring cell that has a frequency point different from that corresponding to the serving cell;
[0161] Optionally, the measurement reference signal configuration includes both the measurement reference signal configuration corresponding to the same-frequency neighboring cell of the corresponding frequency point of the serving cell and the measurement reference signal configuration corresponding to the different-frequency neighboring cell of the corresponding frequency point of the serving cell.
[0162] The measurement reference signal configuration is configured according to the cell granularity.
[0163] In some embodiments, the configuration method according to the cell granularity is similar to the configuration method of Tables 4 to 7 above, and also includes two possible meanings: direct association method (similar to the form of Tables 4 and 5) and indirect association method (similar to the form of Tables 6 and 7), except that the PCI identifier in Tables 4 to 7 is replaced by the cell identifier; or, the PCI identifier list is replaced by the cell identifier list.
[0164] Optionally, the cell identifier is a logical cell identifier, for example, the cell identifier is represented in the form of a serving cell index (serving cell identifier); or, the cell identifier is represented in the form of a global cell identifier CGI.
[0165] In summary, by setting the measurement reference signal configuration, it can be configured according to the PCI granularity, or the frequency and PCI combination granularity, or the cell granularity. It further provides an implementation method for L1 measurement configuration to perform neighboring cell L1 measurement. Neighboring cell measurement is quickly implemented through L1 measurement, ensuring the low-latency measurement requirements of the L1 / L2 switching mechanism.
[0166] Figure 4 A flowchart of a cell measurement method provided by an exemplary embodiment of the present application is shown, and the method is illustrated by taking the method being executed by a terminal device as an example. The method includes:
[0167] Step 420: Perform neighboring cell L1 measurement based on the measurement reference signal configuration and the measurement interval configuration.
[0168] In some embodiments, the L1 measurement configuration in step 220 includes a measurement reference signal configuration for performing neighboring cell L1 measurement and a measurement interval configuration for performing neighboring cell L1 measurement.
[0169] In some embodiments, the measurement reference signal configuration includes a configuration corresponding to the SSB resource of the neighboring cell to be measured; or, the measurement reference signal configuration includes a configuration corresponding to the CSI-RS resource of the neighboring cell to be measured; or, the measurement reference signal configuration includes a configuration corresponding to the SSB resource of the neighboring cell to be measured and a configuration corresponding to the CSI-RS resource of the neighboring cell to be measured. Figure 3 The illustrated embodiment has been described in detail and will not be described again in detail here.
[0170] In some embodiments, the measurement interval configuration includes at least one of the following information:
[0171] The measurement interval configuration corresponds to the period of the measurement window;
[0172] The offset within the cycle in which the measurement window corresponding to the measurement interval configuration appears;
[0173] The duration of the measurement window corresponding to the measurement interval configuration;
[0174] The time advance of the measurement window corresponding to the measurement interval configuration;
[0175] ·Measurement interval configuration corresponds to the applicable scope configuration.
[0176] In some embodiments, the scope configuration includes at least one of the following types:
[0177] An identifier corresponding to at least one cell to which the measurement interval configuration applies;
[0178] The identification of at least one PCI to which the measurement interval configuration applies;
[0179] The identification of at least one frequency point to which the measurement interval configuration applies;
[0180] The identification of at least one SSB resource to which the measurement interval configuration applies;
[0181] • An identification of at least one CSI-RS resource to which the measurement gap configuration applies.
[0182] In some embodiments, the configuration methods of the measurement interval configuration include at least the following three methods:
[0183] The first possible configuration mode: the neighboring cell L1 measurement reuses the measurement interval configured by the L3 measurement, that is, the neighboring cell L1 measurement does not independently configure the L1 measurement interval;
[0184] Optionally, the first possible configuration method needs to further solve the problem of measurement interval time allocation ratio of L1 measurement and L3 measurement, that is, how much time ratio in the measurement interval of L3 measurement configuration is used to perform L1 measurement, and how much time ratio is used to perform L3 measurement.
[0185] The second possible configuration mode is to configure a measurement interval configuration separately for the neighboring cell L1 measurement, that is, the measurement interval configuration used for the neighboring cell L1 measurement is different from the measurement interval configuration used for the L3 measurement;
[0186] In some embodiments, the second possible configuration may include the following two sub-configurations:
[0187] Sub-method 1: All neighboring cell L1 measurements (including SSB resource measurements and / or CSI-RS resource measurements) share a set of measurement interval configurations;
[0188] Optionally, the measurement interval configuration includes an applicable scope configuration. Although all neighboring cell L1 measurements share a set of measurement interval configurations under sub-mode 1, some neighboring cell L1 measurements (for example, same-frequency neighboring cell L1 measurements) do not need to use the measurement interval and do not need to participate in the measurement interval sharing. Therefore, the applicable scope configuration is used to explicitly indicate which neighboring cell L1 measurements need to share this set of measurement interval configurations.
[0189] Sub-method 2: Configure multiple sets of L1 measurement interval configurations for neighboring cell L1 measurements.
[0190] In some embodiments, each set of L1 measurement interval configuration corresponds to a set of SSB resource measurements and / or a set of CSI-RS resource measurements.
[0191] Optionally, through the applicable scope configuration, the correspondence between each set of L1 measurement interval configuration and a group of SSB resources and / or a group of CSI-RS resources is explicitly given.
[0192] Optionally, through the implicit mapping relationship between the L1 measurement interval configuration list and the SSB resource and / or CSI-RS resource configuration list, the correspondence between each set of L1 measurement interval configuration and a group of SSB resources and / or a group of CSI-RS resources is given. Exemplarily, the first set of L1 measurement interval configurations in the L1 measurement interval configuration list (the first element of the L1 measurement interval configuration list) corresponds to the first group of SSB resources and / or the first group of CSI-RS resources in the SSB resource and / or CSI-RS resource configuration list (the first element in the SSB resource and / or CSI-RS resource configuration list).
[0193] A third possible configuration method is: in some cases, the measurement interval of the L3 measurement configuration is used, in other cases, no measurement interval is used, and in still another case, the measurement interval of the previous L1 measurement configuration is used.
[0194] In some embodiments, if the measurement interval configuration does not appear or is not configured during a configuration process, the neighboring area L1 measurement is performed using the measurement interval configuration of the last configuration process, or the neighboring area L1 measurement is performed using the measurement interval configuration configured in the L3 measurement configuration.
[0195] In some embodiments, when the measurement interval configuration is in a deactivated state, the neighboring cell L1 measurement is performed using the measurement interval configuration configured in the L3 measurement configuration, or the neighboring cell L1 measurement is performed without using any measurement interval configuration.
[0196] It should be noted that the present application does not exclude a configuration mode in which the applicable scope configuration corresponding to the measurement interval configuration is not included in the measurement interval configuration, that is, the applicable scope configuration and the measurement interval configuration are independently configured in parallel through two parameters.
[0197] Based on the first possible configuration method and the third possible configuration method mentioned above, when performing neighboring cell L1 measurement, the measurement interval configuration configured in the L3 measurement configuration may be used. Therefore, in some embodiments, the terminal device also obtains the interval sharing configuration of the L3 measurement.
[0198] Optionally, the interval sharing configuration of the L3 measurement includes at least one of the following information:
[0199] The time proportion of the L3 measurement and the neighbor cell L1 measurement respectively occupied by the measurement interval configured in the L3 measurement configuration;
[0200] The proportion of time that the SSB resource measurement in the neighboring cell L1 measurement occupies the measurement interval configured in the L3 measurement configuration;
[0201] The time ratio of the CSI-RS resource measurement in the neighboring cell L1 measurement to the measurement interval configured in the L3 measurement configuration.
[0202] In some embodiments, the terminal device learns the interval sharing configuration of the L3 measurement by a default method; or the terminal device learns the interval sharing configuration of the L3 measurement by receiving terminal-specific signaling sent by the network device. Optionally, the default method can be understood as a method predefined by the protocol.
[0203] In some embodiments, before or after step 420, the method further includes: receiving first indication information sent by a network device, the first indication information being used to activate or deactivate a measurement interval configuration. Optionally, the first indication information is carried in any of the following messages: an RRC message, a MAC CE message, or a DCI message.
[0204] It should be noted that in step 420, "performing neighboring cell L1 measurement" may be replaced by "performing serving cell L1 measurement". In this case, "serving cell L1 measurement" includes serving cell L1 measurement and neighboring cell L1 measurement. For specific explanation, please refer to the corresponding part description of step 220, which will not be repeated here.
[0205] In summary, the L1 measurement configuration includes the measurement reference signal configuration and the measurement interval configuration, and further provides an implementation method for the L1 measurement configuration to perform neighboring cell L1 measurement. The neighboring cell measurement is quickly implemented through the L1 measurement, ensuring the low-latency measurement requirements of the L1 / L2 switching mechanism.
[0206] Figure 5 A flowchart of a cell measurement method provided by an exemplary embodiment of the present application is shown, and the method is illustrated by taking the method being executed by a terminal device as an example. The method includes:
[0207] Step 520: Perform neighboring cell L1 measurement based on the measurement reference signal configuration, the measurement interval configuration and the L1 measurement interval sharing configuration.
[0208] In some embodiments, the L1 measurement configuration in step 220 includes a measurement reference signal configuration for performing neighboring cell L1 measurement, a measurement interval configuration for performing neighboring cell L1 measurement, and an L1 measurement interval sharing configuration for performing neighboring cell L1 measurement.
[0209] In some embodiments, the L1 measurement configuration also includes an L1 measurement interval sharing configuration, and the L1 measurement interval sharing configuration is used to configure the time ratio of the SSB resource measurement in the neighboring cell L1 measurement occupying the measurement interval configuration, and / or, the L1 measurement interval sharing configuration is used to configure the time ratio of the CSI-RS resource measurement in the neighboring cell L1 measurement occupying the measurement interval configuration.
[0210] It should be noted that "performing neighboring cell L1 measurement" in step 520 may be replaced by "performing serving cell L1 measurement". In this case, "serving cell L1 measurement" includes serving cell L1 measurement and neighboring cell L1 measurement. For specific explanation, please refer to the corresponding part description of step 220, which will not be repeated here.
[0211] In summary, the L1 measurement configuration includes measurement reference signal configuration, measurement interval configuration and L1 measurement sharing configuration, and further provides an implementation method for the L1 measurement configuration to perform neighboring cell L1 measurement. The neighboring cell measurement is quickly implemented through L1 measurement, ensuring the low-latency measurement requirements of the L1 / L2 switching mechanism.
[0212] Figure 6 A flowchart of a cell measurement method provided by an exemplary embodiment of the present application is shown, and the method includes:
[0213] Step 610, providing the network device with measurement assistance information for performing neighboring cell L1 measurement;
[0214] In some embodiments, the measurement assistance information includes at least one of the following:
[0215] Cell ID and L1 measurement interval requirement indication information corresponding to each cell;
[0216] Frequency identification and the required L1 measurement interval for each frequency;
[0217] SSB resource identifier and L1 measurement interval requirement indication information corresponding to each SSB resource;
[0218] CSI-RS resource identifier and L1 measurement interval requirement indication information corresponding to each CSI-RS resource;
[0219] Frequency band identifier and L1 measurement interval requirement indication information corresponding to each frequency band.
[0220] Optionally, before step 610, the method further includes: receiving second indication information sent by the network device, wherein the second indication information is used to indicate whether to enable or disable a reporting function of the measurement auxiliary information. That is, the reporting function of the neighboring cell L1 measurement auxiliary information may be an optional function, and the reporting behavior may be activated or deactivated by the second indication information.
[0221] Optionally, the second indication information may be carried in any of the following message types:
[0222] RRC messages;
[0223] MAC CE message;
[0224] DCI message.
[0225] Step 620, performing neighboring cell L1 measurement based on the measurement reference signal configuration and measurement interval configuration configured by the network device;
[0226] It should be noted that step 620 is an optional step after the above-mentioned step 610. In one implementation, the terminal device executes step 610, and then receives a configuration message (including measurement reference signal configuration and measurement interval configuration) sent by the network device to the terminal device. After that, the terminal device executes step 620.
[0227] In some embodiments, the measurement reference signal configuration includes a configuration corresponding to the SSB resource of the neighboring cell to be measured; or, the measurement reference signal configuration includes a configuration corresponding to the CSI-RS resource of the neighboring cell to be measured; or, the measurement reference signal configuration includes a configuration corresponding to the SSB resource of the neighboring cell to be measured and a configuration corresponding to the CSI-RS resource of the neighboring cell to be measured. Figure 3 The illustrated embodiment has been described in detail and will not be described again in detail here.
[0228] In some embodiments, the measurement interval configuration includes at least one of the following information:
[0229] The measurement interval configuration corresponds to the period of the measurement window;
[0230] The offset within the cycle in which the measurement window corresponding to the measurement interval configuration appears;
[0231] The duration of the measurement window corresponding to the measurement interval configuration;
[0232] The time advance of the measurement window corresponding to the measurement interval configuration;
[0233] ·Measurement interval configuration corresponds to the applicable scope configuration.
[0234] The measurement interval configuration is described in the above Figure 4 The illustrated embodiment has been described in detail and will not be described again in detail here.
[0235] It should be noted that "performing neighboring cell L1 measurement" in step 620 may be replaced by "performing serving cell L1 measurement". In this case, "serving cell L1 measurement" includes serving cell L1 measurement and neighboring cell L1 measurement. For specific explanation, please refer to the corresponding part description of step 220, which will not be repeated here.
[0236] To summarize, by sending measurement auxiliary information to the network device, the measurement interval requirement is sent to the network device, and the L1 measurement configuration includes the measurement reference signal configuration and the measurement interval configuration, which further provides an implementation method for the L1 measurement configuration to perform neighboring cell L1 measurement. The neighboring cell measurement is quickly implemented through the L1 measurement, ensuring the low-latency measurement requirement of the L1 / L2 switching mechanism.
[0237] Based on the above Figure 3-Figure 6In the optional embodiment shown, in some embodiments, the objects measured by the neighboring cell L1 include: at least one co-frequency neighboring cell of the serving cell, and / or at least one inter-frequency neighboring cell of the serving cell.
[0238] In one implementation, L1 measurement is differentiated into serving cell L1 measurement and neighboring cell L1 measurement.
[0239] Optionally, the same-frequency neighbor cell or different-frequency neighbor cell and the serving cell may be in a time-synchronous situation or a time-asynchronous situation.
[0240] For the case of time asynchrony, the reference signal measurement window of the neighboring cell L1 measurement of the co-frequency neighboring cell (for example, SMTC configuration) can be independently configured according to the PCI granularity, that is, a neighboring cell with the same frequency as the serving cell but a different corresponding PCI is allowed to separately configure a set of reference signal measurement window configurations for the neighboring cell L1 measurement; or, for the case of time asynchrony, the co-frequency neighboring cell reuses the reference signal measurement window configuration of the L1 measurement configured for the serving cell frequency or reuses the reference signal measurement window configuration of the L3 measurement configured for the serving cell frequency. Under this configuration, the terminal device needs to adjust the actual position of the reference signal measurement window according to the absolute time difference between the serving cell and the co-frequency neighboring cell so as to actually measure the measurement reference signal sent by the asynchronous co-frequency neighboring cell.
[0241] In another possible implementation, the protocol defines all objects of neighboring L1 measurements performed by the entire terminal device as L1 measurements of the terminal device's service cell, that is, regardless of whether the L1 measurement configuration actually contains an L1 measurement configuration of one cell or an L1 measurement configuration containing at least two cells (the cells are identified by PCI+frequency point), the terminal device refers to all L1 measurements as L1 measurements of the service cell. Exemplarily, the service cell corresponds to frequency point 1 and PCI1, and the service cell has two co-frequency neighboring cells, which correspond to frequency point 1 and PCI 2 and frequency point 1 and PCI 3, respectively. The service cell L1 measurement configuration includes measurements of frequency point 1 and PCI 1, frequency point 1 and PCI 2, and frequency point 1 and PCI 3. At this time, the L1 measurements of the above three cells are collectively referred to as L1 measurements of the service cell; the cells corresponding to frequency point 1 and PCI 2 and the cells corresponding to frequency point 1 and PCI 3 can be either time synchronized or time asynchronous with the service cell corresponding to frequency point 1 and PCI1.
[0242] To summarize, the objects for setting the neighboring cell L1 measurement include: at least one co-frequency neighboring cell of the serving cell, and / or, at least one hetero-frequency neighboring cell of the serving cell. An implementation method for L1 measurement configuration to perform neighboring cell L1 measurement is further provided. Neighboring cell measurement is quickly implemented through L1 measurement, thereby ensuring the low-latency measurement requirements of the L1 / L2 switching mechanism.
[0243] Based on the above Figure 3-Figure 6 In the optional embodiment shown, in some embodiments, the cell measurement method further includes: receiving third indication information sent by the network device, the third indication information is used to activate or deactivate a neighboring cell L1 measurement function of the terminal device.
[0244] Optionally, the third indication information is carried in any one of the following messages: RRC message, MAC CE message or DCI message.
[0245] In summary, setting the third indication information to activate or deactivate the neighboring cell L1 measurement function of the terminal device can flexibly control the execution of the neighboring cell L1 measurement and improve the measurement efficiency.
[0246] Based on the above Figure 3-Figure 6 In the optional embodiment shown, in some embodiments, the cell measurement method also includes: sending capability indication information to a network device; wherein the capability indication information is used to indicate whether the terminal device has the ability to perform neighboring cell L1 measurement, and / or, the capability indication information is used to indicate whether the terminal device has the ability to report measurement auxiliary information of neighboring cell L1 measurement.
[0247] Optionally, when both of the above two functions (the capability of performing neighboring cell L1 measurement and the capability of reporting measurement auxiliary information) are defined, the two capabilities can be indicated by their own capability indication information respectively, or can share one capability indication information. When the two capabilities share one capability indication information, the function of neighboring cell L1 measurement and the function of reporting neighboring cell L1 measurement auxiliary information are supported at the same time or not supported at the same time.
[0248] To summarize, the capability indication information is set to indicate whether the terminal device has the capability to perform neighboring cell L1 measurement, and / or whether the terminal device has the capability to report measurement auxiliary information for neighboring cell L1 measurement. The network device can flexibly control the activation or deactivation of the neighboring cell L1 measurement function of the terminal device, for example, activating the above function for terminal devices that support this capability, and not activating the above function for terminal devices that do not support this capability.
[0249] The above has detailed the detailed process of the terminal device performing neighboring cell L1 measurement based on the L1 measurement configuration. Next, the process of the network device configuring the L1 measurement configuration for the terminal device will be introduced.
[0250] Figure 7 A flowchart of a cell measurement method provided by an exemplary embodiment of the present application is shown, and the method is illustrated by taking the method being executed by a network device as an example. The method includes:
[0251] Step 720: Send L1 measurement configuration to the terminal device, where the L1 measurement configuration is used by the terminal device to perform neighboring cell L1 measurement.
[0252] In some embodiments, the network device configures a measurement reference signal configuration for the terminal device to perform neighboring cell L1 measurement;
[0253] Alternatively, the network device configures a measurement reference signal configuration for performing neighboring cell L1 measurement and a measurement interval configuration for performing neighboring cell L1 measurement for the terminal device;
[0254] Alternatively, the network device configures a measurement reference signal configuration for performing neighboring cell L1 measurement, a measurement interval configuration for performing neighboring cell L1 measurement, and an L1 measurement interval sharing configuration for performing neighboring cell L1 measurement for the terminal device.
[0255] In some embodiments, the network device configures the L1 measurement configuration for performing serving cell measurement and / or neighboring cell L1 measurement for the terminal device through any one of the following messages.
[0256] RRC messages;
[0257] System broadcast messages;
[0258] MAC CE message;
[0259] DCI message.
[0260] In some embodiments, the network device adds configuration, updates configuration, deletes configuration, or deactivates configuration for the terminal device through any of the following messages:
[0261] RRC messages;
[0262] System broadcast messages;
[0263] MAC CE message;
[0264] DCI message.
[0265] It should be noted that "perform neighboring cell L1 measurement" in step 720 may be replaced by "perform serving cell L1 measurement". In this case, "serving cell L1 measurement" includes serving cell L1 measurement and neighboring cell L1 measurement, because when performing the L1 measurement task, the network device sends the relevant configuration of the serving cell L1 measurement and the relevant configuration of the neighboring cell L1 measurement to the terminal device, and the terminal device may not distinguish between the measurement of the serving cell and the measurement of the neighboring cell. Exemplarily, the network device sends the L1 measurement-related configuration of the serving cell of frequency 1 and PCI 1, the neighboring cell of frequency 1 and PCI 2, and the neighboring cell of frequency 1 and PCI 3 to the terminal device, and the terminal device performs L1 measurement of the above cells. Under one definition rule, the L1 measurement of the service cell only includes the L1 measurement of the cell corresponding to frequency 1 and PCI 1, while the L1 measurement of the cell corresponding to frequency 1 and PCI 2 and the cell corresponding to frequency 1 and PCI 3 are called neighboring cell L1 measurement; under another definition rule, the L1 measurement of the cell corresponding to frequency 1 and PCI 1 and the L1 measurement of the cell corresponding to frequency 1 and PCI 2 and the cell corresponding to frequency 1 and PCI 3 are collectively referred to as "service cell L1 measurement" in a broad sense. This application does not limit the above definition rules.
[0266] In summary, the network device configures the L1 measurement configuration for the terminal device, so that the terminal device can perform neighboring L1 measurement based on the L1 measurement configuration, thereby expanding the scope of use of the L1 measurement. Compared with the L3 measurement mechanism, the L1 measurement mechanism reduces the service interruption delay of the terminal device in frequent switching scenarios.
[0267] Figure 8 A flowchart of a cell measurement method provided by an exemplary embodiment of the present application is shown, and the method is illustrated by taking the method being executed by a network device as an example. The method includes:
[0268] Step 820, sending a measurement reference signal configuration for performing neighboring cell L1 measurement to the terminal device;
[0269] In some embodiments, the measurement reference signal includes an SSB, and the measurement reference signal configuration includes a configuration corresponding to an SSB resource of a neighboring cell to be measured; or,
[0270] The measurement reference signal includes a CSI-RS, and the measurement reference signal configuration includes a configuration corresponding to a CSI-RS resource of a neighboring cell to be measured; or,
[0271] The measurement reference signal includes SSB and CSI-RS, and the measurement reference signal configuration includes the configuration corresponding to the SSB resource of the neighboring cell to be measured and the configuration corresponding to the CSI-RS resource of the neighboring cell to be measured.
[0272] In some embodiments, the configuration corresponding to the SSB resource of the neighboring cell to be measured includes at least one of the following:
[0273] The cell ID of the neighboring cell to be measured;
[0274] At least one SSB identifier of the neighboring cell to be measured;
[0275] The reference signal measurement window configuration corresponding to the SSB resource of the neighboring cell to be measured.
[0276] In some embodiments, the reference signal measurement window configuration includes at least one of the following:
[0277] The period during which the reference signal measurement window appears;
[0278] The offset within the period in which the reference signal measurement window appears;
[0279] The duration of the reference signal measurement window;
[0280] The cell identification information corresponding to the time reference cell associated with the reference signal measurement window.
[0281] Since the time domain measurement window corresponding to the reference signal measurement window configuration is a relative time window, a reference time needs to be determined in order to work. In general, the reference time corresponding to the reference signal measurement window configuration is the service cell time. At this time, the cell identification information corresponding to the time reference cell associated with the reference signal measurement window does not appear or is not configured, indicating that the reference signal measurement window uses the service cell time as the reference time by default; but if the reference time corresponding to the reference signal measurement window is not the service cell, it is necessary to explicitly indicate which cell's time is used as the reference time for the reference signal measurement window through the cell identification information corresponding to the time reference cell associated with the reference signal measurement window.
[0282] In some embodiments, the reference signal measurement window configuration includes at least one of the following:
[0283] The deviation value of the first period relative to the second period, where the first period is the period of the reference signal measurement window in the L1 measurement configuration, and the second period is the corresponding period in the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration;
[0284] The deviation value of the first offset relative to the second offset, the first offset is the offset within the period in which the reference signal measurement window appears in the L1 measurement configuration, and the second offset is the offset within the period corresponding to the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration;
[0285] ·The deviation value of the first duration relative to the second duration, the first duration is the duration of the reference signal measurement window in the L1 measurement configuration, and the second duration is the duration of the corresponding reference signal measurement window in the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration.
[0286] In some embodiments, the configuration corresponding to the CSI-RS resource of the neighboring cell to be measured includes at least one of the following:
[0287] The cell ID of the neighboring cell to be measured;
[0288] The logical identifier corresponding to at least one CSI-RS resource of the neighboring cell to be measured;
[0289] The time domain resource configuration corresponding to at least one CSI-RS resource of the neighboring cell to be measured;
[0290] Frequency domain resource configuration corresponding to at least one CSI-RS resource of the neighboring cell to be measured;
[0291] A quasi-co-site QCL reference signal configuration associated with at least one CSI-RS resource of the neighboring cell to be measured.
[0292] In some embodiments, the type of the quasi co-site reference signal corresponding to the quasi co-site reference signal configuration is SSB or CSI-RS.
[0293] For a detailed description of the measurement reference signal configuration configured by the network device for the terminal device to perform neighboring cell L1 measurement, please refer to the above Figure 3 The method embodiment shown will not be described in detail here.
[0294] It should be noted that "performing neighboring cell L1 measurement" in step 820 may be replaced by "performing serving cell L1 measurement". In this case, "serving cell L1 measurement" includes serving cell L1 measurement and neighboring cell L1 measurement. For specific explanation, please refer to the corresponding part description of step 720, which will not be repeated here.
[0295] To summarize, the L1 measurement configuration includes the measurement reference signal configuration, and further provides a method for the network device to configure the L1 measurement configuration for the terminal device, and the terminal device to perform neighboring cell L1 measurement based on the L1 measurement configuration. The neighboring cell measurement is quickly implemented through L1 measurement, ensuring the low-latency measurement requirements of the L1 / L2 switching mechanism.
[0296] Fig. 9 A flowchart of a cell measurement method provided by an exemplary embodiment of the present application is shown, and the method is illustrated by taking the method being executed by a network device as an example. The method includes:
[0297] Step 920: Sending a measurement reference signal configuration for performing neighboring cell L1 measurement and a measurement interval configuration for performing neighboring cell L1 measurement to the terminal device;
[0298] In some embodiments, for information about the measurement reference signal configuration, please refer to Figure 8 The method embodiment shown will not be described in detail here.
[0299] In some embodiments, the measurement interval configuration includes at least one of the following information:
[0300] The measurement interval configuration corresponds to the period of the measurement window;
[0301] The offset within the cycle in which the measurement window corresponding to the measurement interval configuration appears;
[0302] The duration of the measurement window corresponding to the measurement interval configuration;
[0303] The time advance of the measurement window corresponding to the measurement interval configuration;
[0304] ·Measurement interval configuration corresponds to the applicable scope configuration.
[0305] In some embodiments, the scope configuration includes at least one of the following types:
[0306] An identifier corresponding to at least one cell to which the measurement interval configuration applies;
[0307] The identification of at least one PCI to which the measurement interval configuration applies;
[0308] The identification of at least one frequency point to which the measurement interval configuration applies;
[0309] The identification of at least one SSB resource to which the measurement interval configuration applies;
[0310] • An identification of at least one CSI-RS resource to which the measurement gap configuration applies.
[0311] In some embodiments, the identifier corresponding to at least one cell is represented by any of the following forms:
[0312] · Frequency and PCI combination form;
[0313] ·Cell Global Identifier (CGI) format;
[0314] The cell identity is expressed in the form of serving cell index.
[0315] In some embodiments, before or after step 920, the method further includes: sending first indication information to the terminal device, the first indication information being used to activate or deactivate the measurement interval configuration. Optionally, the first indication information is carried in any one of the following messages: an RRC message, a MAC CE message, or a DCI message.
[0316] In some embodiments, before step 920, the method further includes: sending terminal-specific signaling to the terminal device so that the terminal device learns the interval sharing configuration of the L3 measurement. Optionally, the interval sharing configuration of the L3 measurement includes at least one of the following information:
[0317] The time proportion of the L3 measurement and the neighbor cell L1 measurement respectively occupied by the measurement interval configured in the L3 measurement configuration;
[0318] The proportion of time that the SSB resource measurement in the neighboring cell L1 measurement occupies the measurement interval configured in the L3 measurement configuration;
[0319] The time ratio of the CSI-RS resource measurement in the neighboring cell L1 measurement to the measurement interval configured in the L3 measurement configuration.
[0320] For detailed information about the measurement reference signal configuration that the network device configures for the terminal device to perform neighboring cell L1 measurement, and the measurement interval configuration for performing neighboring cell L1 measurement, please refer to the above Figure 4 The method embodiment shown will not be described in detail here.
[0321] It should be noted that "performing neighboring cell L1 measurement" in step 920 may be replaced by "performing serving cell L1 measurement". In this case, "serving cell L1 measurement" includes serving cell L1 measurement and neighboring cell L1 measurement. For specific explanation, please refer to the corresponding part description of step 720, which will not be repeated here.
[0322] To summarize, the L1 measurement configuration includes the measurement reference signal configuration and the measurement interval configuration, and further provides a method for the network device to configure the L1 measurement configuration for the terminal device, and the terminal device to perform neighboring cell L1 measurement based on the L1 measurement configuration. The neighboring cell measurement is quickly implemented through L1 measurement, ensuring the low-latency measurement requirements of the L1 / L2 switching mechanism.
[0323] Fig.10 A flowchart of a cell measurement method provided by an exemplary embodiment of the present application is shown, and the method is illustrated by taking the method being executed by a network device as an example. The method includes:
[0324] Step 1020: Sending a measurement reference signal configuration for performing neighboring cell L1 measurement, a measurement interval configuration for performing neighboring cell L1 measurement, and an L1 measurement interval sharing configuration for performing neighboring cell L1 measurement to the terminal device;
[0325] For details about measurement reference signal configuration and measurement interval configuration, please refer to the above Fig. 9 The method embodiment shown.
[0326] In some embodiments, the L1 measurement interval sharing configuration includes:
[0327] The proportion of time that the SSB resource measurement in the neighbor cell L1 measurement occupies the measurement interval configured in the L1 measurement configuration;
[0328] and / or,
[0329] The CSI-RS resource measurement in the neighbor cell L1 measurement occupies the time proportion configured in the measurement interval configured in the L1 measurement configuration.
[0330] For a detailed description of the measurement reference signal configuration, the measurement interval configuration, and the L1 measurement interval sharing configuration for performing neighboring L1 measurements configured by the network device for the terminal device, please refer to the above Figure 5 The method embodiment shown will not be described in detail here.
[0331] It should be noted that "performing neighboring cell L1 measurement" in step 1020 may be replaced by "performing serving cell L1 measurement". In this case, "serving cell L1 measurement" includes serving cell L1 measurement and neighboring cell L1 measurement. For specific explanation, please refer to the corresponding part description of step 720, which will not be repeated here.
[0332] In summary, the L1 measurement configuration includes measurement reference signal configuration, measurement interval configuration and L1 measurement sharing configuration, and further provides a method for the network device to configure the L1 measurement configuration for the terminal device, and the terminal device to perform neighboring cell L1 measurement based on the L1 measurement configuration. The neighboring cell measurement is quickly implemented through L1 measurement, ensuring the low-latency measurement requirements of the L1 / L2 switching mechanism.
[0333] Fig.11 A flowchart of a cell measurement method provided by an exemplary embodiment of the present application is shown, and the method is illustrated by taking the method being executed by a network device as an example. The method includes:
[0334] Step 1110: receiving measurement auxiliary information sent by a terminal device for performing neighboring cell L1 measurement;
[0335] In some embodiments, the measurement assistance information includes at least one of the following:
[0336] Cell ID and L1 measurement interval requirement indication information corresponding to each cell;
[0337] Frequency identification and the required L1 measurement interval for each frequency;
[0338] SSB resource identifier and L1 measurement interval requirement indication information corresponding to each SSB resource;
[0339] CSI-RS resource identifier and L1 measurement interval requirement indication information corresponding to each CSI-RS resource;
[0340] Frequency band identifier and L1 measurement interval requirement indication information corresponding to each frequency band.
[0341] In some embodiments, before step 1110, the method further includes: sending second indication information to the terminal device, wherein the second indication information is used to indicate whether to turn on or off a reporting function of measurement assistance information.
[0342] For details on measurement auxiliary information, please refer to the above Figure 6 The method embodiment shown.
[0343] Step 1120: Send a measurement reference signal configuration for performing neighboring cell L1 measurement and a measurement interval configuration for performing neighboring cell L1 measurement to the terminal device.
[0344] It should be noted that step 1120 is an optional step after the above step 1110. In one implementation, the network device executes step 1110, and then the network device sends a configuration message (including measurement reference signal configuration and measurement interval configuration) to the terminal device by executing step 1120.
[0345] In some embodiments, the measurement reference signal configuration includes a configuration corresponding to the SSB resource of the neighboring cell to be measured; or, the measurement reference signal configuration includes a configuration corresponding to the CSI-RS resource of the neighboring cell to be measured; or, the measurement reference signal configuration includes a configuration corresponding to the SSB resource of the neighboring cell to be measured and a configuration corresponding to the CSI-RS resource of the neighboring cell to be measured. Figure 3 The illustrated embodiment has been described in detail and will not be described again in detail here.
[0346] In some embodiments, the measurement interval configuration includes at least one of the following information:
[0347] The measurement interval configuration corresponds to the period of the measurement window;
[0348] The offset within the cycle in which the measurement window corresponding to the measurement interval configuration appears;
[0349] The duration of the measurement window corresponding to the measurement interval configuration;
[0350] The time advance of the measurement window corresponding to the measurement interval configuration;
[0351] ·Measurement interval configuration corresponds to the applicable scope configuration.
[0352] For details about measurement reference signal configuration and measurement interval configuration, please refer to the above Fig.10 The method embodiment shown.
[0353] It should be noted that "performing neighboring cell L1 measurement" in step 1120 may be replaced by "performing serving cell L1 measurement". In this case, "serving cell L1 measurement" includes serving cell L1 measurement and neighboring cell L1 measurement. For specific explanation, please refer to the corresponding part description of step 720, which will not be repeated here.
[0354] To summarize, by receiving the measurement auxiliary information sent by the terminal device, the measurement interval requirement sent by the terminal device is received, and the L1 measurement configuration includes the measurement reference signal configuration and the measurement interval configuration, which further provides a method for the network device to configure the L1 measurement configuration for the terminal device, and the terminal device performs the neighboring area L1 measurement based on the L1 measurement configuration. The neighboring area measurement is quickly implemented through the L1 measurement, which ensures the low-latency measurement requirement of the L1 / L2 switching mechanism.
[0355] Based on the above Figure 7-Figure 11 In the optional embodiment shown, in some embodiments, the objects measured by the neighboring cell L1 include: at least one co-frequency neighboring cell of the serving cell, and / or at least one inter-frequency neighboring cell of the serving cell.
[0356] In one implementation, L1 measurement is differentiated into serving cell L1 measurement and neighboring cell L1 measurement.
[0357] Optionally, the same-frequency neighbor cell or different-frequency neighbor cell and the serving cell may be in a time-synchronous situation or a time-asynchronous situation.
[0358] For the case of time asynchrony, the reference signal measurement window of the neighboring cell L1 measurement of the co-frequency neighboring cell (for example, SMTC configuration) can be independently configured according to the PCI granularity, that is, a neighboring cell with the same frequency but different PCI as the serving cell is allowed to separately configure a set of reference signal measurement window configurations for the neighboring cell L1 measurement; or, for the case of time asynchrony, the co-frequency neighboring cell reuses the reference signal measurement window configuration of the L1 measurement configured for the serving cell frequency or reuses the reference signal measurement window configuration of the L3 measurement configured for the serving cell frequency. Under this configuration, the terminal device needs to adjust the actual position of the reference signal measurement window according to the absolute time difference between the serving cell and the co-frequency neighboring cell so as to actually measure the measurement reference signal sent by the asynchronous co-frequency neighboring cell.
[0359] In another possible implementation, the protocol defines all objects of neighboring L1 measurements performed by the entire terminal device as L1 measurements of the terminal device's service cell, that is, regardless of whether the L1 measurement configuration actually contains an L1 measurement configuration of one cell or an L1 measurement configuration containing at least two cells (the cells are identified by PCI+frequency point), the terminal device refers to all L1 measurements as L1 measurements of the service cell. Exemplarily, the service cell corresponds to frequency point 1 and PCI1, and the service cell has two co-frequency neighboring cells, which correspond to frequency point 1 and PCI2 and frequency point 1 and PCI3, respectively. The service cell L1 measurement configuration includes measurements of frequency point 1 and PCI1, frequency point 1 and PCI2, and frequency point 1 and PCI3. At this time, the L1 measurements of the above three cells are collectively referred to as L1 measurements of the service cell; the cells corresponding to frequency point 1 and PCI2 and the cells corresponding to frequency point 1 and PCI3 can be either time synchronized or time asynchronous with the service cell corresponding to frequency point 1 and PCI1.
[0360] To summarize, the objects for setting the neighboring cell L1 measurement include: at least one co-frequency neighboring cell of the serving cell, and / or, at least one hetero-frequency neighboring cell of the serving cell. It further provides a method for the network device to configure the L1 measurement configuration for the terminal device, and the terminal device to perform the neighboring cell L1 measurement based on the L1 measurement configuration. The neighboring cell measurement is quickly implemented through the L1 measurement, thereby ensuring the low-latency measurement requirements of the L1 / L2 switching mechanism.
[0361] Based on the above Figure 7-Figure 11 In the optional embodiment shown, in some embodiments, the cell measurement method further includes: sending third indication information to the terminal device, the third indication information being used to activate or deactivate a neighboring cell L1 measurement function of the terminal device.
[0362] Optionally, the third indication information is carried in any one of the following messages: RRC message, MAC CE message or DCI message.
[0363] In summary, setting the third indication information to activate or deactivate the neighboring cell L1 measurement function of the terminal device can flexibly control the execution of the neighboring cell L1 measurement and improve the measurement efficiency.
[0364] Based on the above Figure 7-Figure 11 In the optional embodiment shown, in some embodiments, the cell measurement method also includes: receiving capability indication information sent by a terminal device; wherein the capability indication information is used to indicate whether the terminal device has the ability to perform neighboring cell L1 measurement, and / or, the capability indication information is used to indicate whether the terminal device has the ability to report measurement auxiliary information of neighboring cell L1 measurement.
[0365] Optionally, when both of the above two functions (the capability of performing neighboring cell L1 measurement and the capability of reporting measurement auxiliary information) are defined, the two capabilities can be indicated by their own capability indication information respectively, or can share one capability indication information. When the two capabilities share one capability indication information, the function of neighboring cell L1 measurement and the function of reporting neighboring cell L1 measurement auxiliary information are supported at the same time or not supported at the same time.
[0366] To summarize, the capability indication information is set to indicate whether the terminal device has the capability to perform neighboring cell L1 measurement, and / or whether the terminal device has the capability to report measurement auxiliary information for neighboring cell L1 measurement. The network device can flexibly control the activation or deactivation of the neighboring cell L1 measurement function of the terminal device, for example, activating the above function for terminal devices that support this capability, and not activating the above function for terminal devices that do not support this capability.
[0367] Fig.12 A structural block diagram of a cell measurement device provided by an exemplary embodiment of the present application is shown, and the device includes:
[0368] The measurement module 1201 is used to perform neighboring cell L1 measurement based on the L1 measurement configuration.
[0369] In some embodiments, the L1 measurement configuration includes: a measurement reference signal configuration for performing neighbor cell L1 measurement.
[0370] In some embodiments, the measurement reference signal includes an SSB, and the measurement reference signal configuration includes a configuration corresponding to an SSB resource of a neighboring cell to be measured; or,
[0371] The measurement reference signal includes a CSI-RS, and the measurement reference signal configuration includes a configuration corresponding to a CSI-RS resource of a neighboring cell to be measured; or,
[0372] The measurement reference signal includes SSB and CSI-RS, and the measurement reference signal configuration includes the configuration corresponding to the SSB resource of the neighboring cell to be measured and the configuration corresponding to the CSI-RS resource of the neighboring cell to be measured.
[0373] In some embodiments, the configuration corresponding to the SSB resource of the neighboring cell to be measured includes at least one of the following:
[0374] The cell identifier of the neighboring area to be measured;
[0375] At least one SSB identifier of the neighboring cell to be measured;
[0376] The reference signal measurement window configuration corresponding to the SSB resource of the neighboring cell to be measured.
[0377] In some embodiments, the reference signal measurement window configuration includes at least one of the following:
[0378] The period during which the reference signal measurement window appears;
[0379] The offset within the period in which the reference signal measurement window appears;
[0380] The duration of the reference signal measurement window;
[0381] The cell identification information corresponding to the time reference cell associated with the reference signal measurement window.
[0382] In some embodiments, the reference signal measurement window configuration includes at least one of the following:
[0383] The deviation value of the first period relative to the second period, the first period is the period in which the reference signal measurement window appears in the L1 measurement configuration, and the second period is the corresponding period in the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration;
[0384] The deviation value of the first offset relative to the second offset, the first offset is the offset within the period in which the reference signal measurement window appears in the L1 measurement configuration, and the second offset is the offset within the period corresponding to the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration;
[0385] The first duration is the deviation value relative to the second duration, the first duration is the duration of the reference signal measurement window in the L1 measurement configuration, and the second duration is the duration of the corresponding reference signal measurement window in the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration.
[0386] In some embodiments, the configuration corresponding to the SSB resource of the neighboring cell to be measured includes a reference signal measurement window configuration. The measurement module 1201 is also used to use the reference signal measurement window configuration of the last configuration process when the reference signal measurement window configuration does not appear or is not configured during a configuration process, or use the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration.
[0387] In some embodiments, the configuration corresponding to the CSI-RS resource of the neighboring cell to be measured includes at least one of the following:
[0388] The cell identifier of the neighboring area to be measured;
[0389] A logical identifier corresponding to at least one CSI-RS resource of a neighboring cell to be measured;
[0390] The time domain resource configuration corresponding to at least one CSI-RS resource of the neighboring cell to be measured;
[0391] Frequency domain resource configuration corresponding to at least one CSI-RS resource of the neighboring cell to be measured;
[0392] A quasi-co-site QCL reference signal configuration associated with at least one CSI-RS resource of the neighboring cell to be measured.
[0393] In some embodiments, the type of the quasi co-site reference signal corresponding to the quasi co-site reference signal configuration is SSB or CSI-RS.
[0394] In some embodiments, the measurement reference signal configuration is performed at a PCI granularity; or,
[0395] The measurement reference signal configuration is performed according to the frequency point and PCI combination granularity; or,
[0396] The measurement reference signal configuration is performed according to the cell granularity.
[0397] In some embodiments, the L1 measurement configuration further includes: a measurement interval configuration for performing neighboring cell L1 measurement.
[0398] In some embodiments, the measurement interval configuration includes at least one of the following information:
[0399] The measurement interval configuration corresponds to the period of occurrence of the measurement window;
[0400] The offset within the cycle in which the measurement window corresponding to the measurement interval configuration appears;
[0401] The duration of the measurement window corresponding to the measurement interval configuration;
[0402] The time advance of the measurement window corresponding to the measurement interval configuration;
[0403] The applicable scope configuration corresponding to the measurement interval configuration.
[0404] In some embodiments, the scope configuration includes at least one of the following types:
[0405] an identifier corresponding to at least one cell to which the measurement interval configuration is applicable;
[0406] an identification of at least one PCI to which the measurement interval configuration applies;
[0407] an identification of at least one frequency point to which the measurement interval configuration applies;
[0408] an identification of at least one SSB resource to which the measurement interval configuration applies;
[0409] An identifier of at least one CSI-RS resource to which the measurement interval configuration applies.
[0410] In some embodiments, the identifier corresponding to at least one cell is represented by any of the following forms:
[0411] It is expressed in the form of frequency point and PCI combination;
[0412] The global cell identifier is expressed in the form of CGI;
[0413] The cell identifier is expressed in the form of serving cell index.
[0414] In some embodiments, the apparatus further includes a receiving module 1203. The receiving module 1203 is configured to receive first indication information sent by a network device, where the first indication information is used to activate or deactivate the measurement interval configuration.
[0415] In some embodiments, the first indication information is carried in any one of the following messages:
[0416] RRC message, MAC CE message or DCI message.
[0417] In some embodiments, the measurement module 1201 is also used to perform neighboring area L1 measurement using the measurement interval configuration of the last configuration process when the measurement interval configuration does not appear or is not configured during a configuration process, or to perform neighboring area L1 measurement using the measurement interval configuration configured in the L3 measurement configuration.
[0418] In some embodiments, the measurement module 1201 is further used to perform neighboring cell L1 measurement using the measurement interval configuration configured in the L3 measurement configuration when the measurement interval configuration is in a deactivated state, or to perform neighboring cell L1 measurement without using any measurement interval configuration.
[0419] In some embodiments, the measurement module 1201 is further configured to obtain an interval sharing configuration of the L3 measurement when using a measurement interval configuration configured in the L3 measurement configuration.
[0420] In some embodiments, the interval sharing configuration of the L3 measurement includes at least one of the following information:
[0421] The time proportions of the L3 measurement and the neighboring cell L1 measurement respectively occupied by the measurement interval configured in the L3 measurement configuration;
[0422] The proportion of time that the SSB resource measurement in the neighbor cell L1 measurement occupies the measurement interval configured in the L3 measurement configuration;
[0423] The CSI-RS resource measurement in the neighbor cell L1 measurement occupies the time proportion configured in the measurement interval configured in the L3 measurement configuration.
[0424] In some embodiments, the measurement module 1201 is further configured to obtain the interval sharing configuration of the L3 measurement by default;
[0425] In some embodiments, the measurement module 1201 is further configured to obtain the interval sharing configuration of the L3 measurement by receiving terminal-specific signaling sent by a network device.
[0426] In some embodiments, the L1 measurement configuration further includes: an L1 measurement interval sharing configuration for performing neighboring cell L1 measurement.
[0427] In some embodiments, the L1 measurement interval sharing configuration includes:
[0428] The proportion of time that the SSB resource measurement in the neighbor cell L1 measurement occupies the measurement interval configured in the L1 measurement configuration;
[0429] and / or,
[0430] The CSI-RS resource measurement in the neighbor cell L1 measurement occupies the time proportion configured in the measurement interval configured in the L1 measurement configuration.
[0431] In some embodiments, the apparatus further includes a sending module 1202. The sending module 1202 is configured to provide the network device with measurement assistance information for performing neighboring cell L1 measurement.
[0432] In some embodiments, the measurement assistance information includes at least one of the following:
[0433] Cell identifier and L1 measurement interval requirement indication information corresponding to each cell;
[0434] Frequency point identification, and L1 measurement interval requirement indication information corresponding to each frequency point;
[0435] SSB resource identifier, and L1 measurement interval requirement indication information corresponding to each SSB resource;
[0436] CSI-RS resource identifier, and L1 measurement interval requirement indication information corresponding to each CSI-RS resource;
[0437] Frequency band identifier, and L1 measurement interval requirement indication information corresponding to each frequency band.
[0438] In some embodiments, the receiving module 1203 is further used to receive second indication information sent by the network device, where the second indication information is used to indicate whether to enable or disable a reporting function of the measurement auxiliary information.
[0439] In some embodiments, the objects measured by the neighboring cell L1 include:
[0440] At least one co-frequency neighboring cell of the serving cell, and / or, at least one inter-frequency neighboring cell of the serving cell.
[0441] In some embodiments, the receiving module 1203 is further used to receive third indication information sent by the network device, and the third indication information is used to activate or deactivate the neighboring cell L1 measurement function of the terminal device.
[0442] In some embodiments, the third indication information is carried in any one of the following messages:
[0443] RRC message, MAC CE message or DCI message.
[0444] In some embodiments, the sending module 1202 is further used to send capability indication information to the network device;
[0445] The capability indication information is used to indicate whether the terminal device has the capability to perform neighboring cell L1 measurement, and / or the capability indication information is used to indicate whether the terminal device has the capability to report measurement auxiliary information of neighboring cell L1 measurement.
[0446] In summary, based on the L1 measurement configuration, the device can perform neighboring cell L1 measurement, which expands the scope of use of L1 measurement. Compared with the L3 measurement mechanism, the L1 measurement mechanism reduces the service interruption delay in frequent switching scenarios.
[0447] Fig.13 A structural block diagram of a cell measurement device provided by an exemplary embodiment of the present application is shown, and the device includes:
[0448] The configuration module 1301 is used to send an L1 measurement configuration to a terminal device, where the L1 measurement configuration is used by the terminal device to perform neighboring cell L1 measurement.
[0449] In some embodiments, the L1 measurement configuration includes: a measurement reference signal configuration for performing neighbor cell L1 measurement.
[0450] In some embodiments, the measurement reference signal includes SSB, and the measurement reference signal configuration includes the configuration corresponding to the SSB resources of the neighboring cell to be measured; or, the measurement reference signal includes CSI-RS, and the measurement reference signal configuration includes the configuration corresponding to the CSI-RS resources of the neighboring cell to be measured; or, the measurement reference signal includes SSB and CSI-RS, and the measurement reference signal configuration includes the configuration corresponding to the SSB resources of the neighboring cell to be measured and the configuration corresponding to the CSI-RS resources of the neighboring cell to be measured.
[0451] In some embodiments, the configuration corresponding to the SSB resource of the neighboring cell to be measured includes at least one of the following:
[0452] The cell identifier of the neighboring area to be measured;
[0453] At least one SSB identifier of the neighboring cell to be measured;
[0454] The reference signal measurement window configuration corresponding to the SSB resource of the neighboring cell to be measured.
[0455] In some embodiments, the reference signal measurement window configuration includes at least one of the following:
[0456] The period during which the reference signal measurement window appears;
[0457] The offset within the period in which the reference signal measurement window appears;
[0458] The duration of the reference signal measurement window;
[0459] The cell identification information corresponding to the time reference cell associated with the reference signal measurement window.
[0460] In some embodiments, the reference signal measurement window configuration includes at least one of the following:
[0461] The deviation value of the first period relative to the second period, the first period is the period in which the reference signal measurement window appears in the L1 measurement configuration, and the second period is the corresponding period in the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration;
[0462] The deviation value of the first offset relative to the second offset, the first offset is the offset within the period in which the reference signal measurement window appears in the L1 measurement configuration, and the second offset is the offset within the period corresponding to the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration;
[0463] The first duration is the deviation value relative to the second duration, the first duration is the duration of the reference signal measurement window in the L1 measurement configuration, and the second duration is the duration of the corresponding reference signal measurement window in the SMTC configuration in the MO associated with the corresponding frequency point in the L3 measurement configuration.
[0464] In some embodiments, the configuration corresponding to the CSI-RS resource of the neighboring cell to be measured includes at least one of the following:
[0465] The cell identifier of the neighboring area to be measured;
[0466] A logical identifier corresponding to at least one CSI-RS resource of a neighboring cell to be measured;
[0467] The time domain resource configuration corresponding to at least one CSI-RS resource of the neighboring cell to be measured;
[0468] Frequency domain resource configuration corresponding to at least one CSI-RS resource of the neighboring cell to be measured;
[0469] A quasi-co-site QCL reference signal configuration associated with at least one CSI-RS resource of the neighboring cell to be measured.
[0470] In some embodiments, the type of the quasi co-site reference signal corresponding to the quasi co-site reference signal configuration is SSB or CSI-RS.
[0471] In some embodiments, the measurement reference signal configuration is configured according to the PCI granularity; or, the measurement reference signal configuration is configured according to the frequency point and PCI combination granularity; or, the measurement reference signal configuration is configured according to the cell granularity.
[0472] In some embodiments, the L1 measurement configuration further includes: a measurement interval configuration for performing neighboring cell L1 measurement.
[0473] In some embodiments, the measurement interval configuration includes at least one of the following information:
[0474] The measurement interval configuration corresponds to the period of occurrence of the measurement window;
[0475] The offset within the cycle in which the measurement window corresponding to the measurement interval configuration appears;
[0476] The duration of the measurement window corresponding to the measurement interval configuration;
[0477] The time advance of the measurement window corresponding to the measurement interval configuration;
[0478] The applicable scope configuration corresponding to the measurement interval configuration.
[0479] In some embodiments, the scope configuration includes at least one of the following types:
[0480] an identifier corresponding to at least one cell to which the measurement interval configuration is applicable;
[0481] an identification of at least one PCI to which the measurement interval configuration applies;
[0482] an identification of at least one frequency point to which the measurement interval configuration applies;
[0483] an identification of at least one SSB resource to which the measurement interval configuration applies;
[0484] An identifier of at least one CSI-RS resource to which the measurement interval configuration applies.
[0485] In some embodiments, the identifier corresponding to at least one cell is represented by any of the following forms:
[0486] It is expressed in the form of frequency point and PCI combination;
[0487] The global cell identifier is expressed in the form of CGI;
[0488] The cell identifier is expressed in the form of serving cell index.
[0489] In some embodiments, the configuration module 1301 is further used to send first indication information to the terminal device, where the first indication information is used to activate or deactivate the measurement interval configuration.
[0490] In some embodiments, the first indication information is carried in any one of the following messages:
[0491] RRC message, MAC CE message or DCI message.
[0492] In some embodiments, the configuration module 1301 is further configured to send terminal-specific signaling to the terminal device so that the terminal device learns the interval sharing configuration of the L3 measurement.
[0493] In some embodiments, the interval sharing configuration of the L3 measurement includes at least one of the following information:
[0494] The time proportions of the L3 measurement and the neighboring cell L1 measurement respectively occupied by the measurement interval configured in the L3 measurement configuration;
[0495] The proportion of time that the SSB resource measurement in the neighbor cell L1 measurement occupies the measurement interval configured in the L3 measurement configuration;
[0496] The CSI-RS resource measurement in the neighbor cell L1 measurement occupies the time proportion configured in the measurement interval configured in the L3 measurement configuration.
[0497] In some embodiments, the L1 measurement configuration further includes: an L1 measurement interval sharing configuration for performing neighboring cell L1 measurement.
[0498] In some embodiments, the L1 measurement interval sharing configuration includes:
[0499] The SSB resource measurement in the neighboring cell L1 measurement occupies the time proportion of the measurement interval configured in the L1 measurement configuration; and / or, the CSI-RS resource measurement in the neighboring cell L1 measurement occupies the time proportion of the measurement interval configured in the L1 measurement configuration.
[0500] In some embodiments, the apparatus further includes a receiving module 1302. The receiving module 1302 is configured to receive measurement assistance information provided by a terminal device for performing neighboring cell L1 measurement.
[0501] In some embodiments, the measurement assistance information includes at least one of the following:
[0502] Cell identifier and L1 measurement interval requirement indication information corresponding to each cell;
[0503] Frequency point identification, and L1 measurement interval requirement indication information corresponding to each frequency point;
[0504] SSB resource identifier, and L1 measurement interval requirement indication information corresponding to each SSB resource;
[0505] CSI-RS resource identifier, and L1 measurement interval requirement indication information corresponding to each CSI-RS resource;
[0506] Frequency band identifier, and L1 measurement interval requirement indication information corresponding to each frequency band.
[0507] In some embodiments, the configuration module 1301 is further used to send second indication information to the terminal device, where the second indication information is used to indicate whether to turn on or off a reporting function of the measurement assistance information.
[0508] In some embodiments, the objects of the neighboring cell L1 measurement include: at least one co-frequency neighboring cell of the serving cell, and / or at least one inter-frequency neighboring cell of the serving cell.
[0509] In some embodiments, the configuration module 1301 is further used to send third indication information to the terminal device, where the third indication information is used to activate or deactivate a neighboring cell L1 measurement function of the terminal device.
[0510] In some embodiments, the third indication information is carried in any one of the following messages:
[0511] RRC message, MAC CE message or DCI message.
[0512] In some embodiments, the receiving module 1302 is further used to receive capability indication information sent by the terminal device;
[0513] The capability indication information is used to indicate whether the terminal device has the capability to perform neighboring cell L1 measurement, and / or the capability indication information is used to indicate whether the terminal device has the capability to report measurement auxiliary information of neighboring cell L1 measurement.
[0514] In summary, the device configures L1 measurement configuration for the terminal device, so that the terminal device can perform neighboring area L1 measurement based on the L1 measurement configuration, thereby expanding the scope of use of L1 measurement. Compared with the L3 measurement mechanism, the L1 measurement mechanism reduces the service interruption delay of the terminal device in frequent switching scenarios.
[0515] One point that needs to be explained is that the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions. In actual applications, the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.
[0516] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.
[0517] Please refer to Fig.14 , which shows a structural diagram of a communication device provided by an embodiment of the present application. The communication device can be a terminal device or a network device (base station). The communication device includes a processor 101, a receiver 102, a transmitter 103 and a memory 104.
[0518] The processor 101 includes one or more processing cores. The processor 101 executes various functional applications by running software programs and modules.
[0519] The receiver 102 and the transmitter 103 may be used to receive and send information, and the receiver 102 and the transmitter 103 may be accommodated on a communication chip.
[0520] The memory 104 may be used to store a computer program, and the processor 101 may be used to execute the computer program to implement each step in the above method embodiment.
[0521] In addition, the memory 107 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, and the volatile or non-volatile storage device includes but is not limited to: random-access memory (RAM) and read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other solid-state storage technology, compact disc read-only memory (CD-ROM), high-density digital video disc (DVD) or other optical storage, tape cassettes, magnetic tapes, disk storage or other magnetic storage devices.
[0522] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored. The computer program is used to be executed by a processor to implement the above-mentioned cell measurement method.
[0523] Optionally, the computer readable storage medium may include: a read-only memory (ROM), a random access memory (RAM), a solid state drive (SSD) or an optical disk, etc. Among them, the random access memory may include a resistance random access memory (ReRAM) and a dynamic random access memory (DRAM).
[0524] An embodiment of the present application further provides a chip, which includes a programmable logic circuit and / or program instructions. When the chip is running, it is used to implement the above-mentioned cell measurement method.
[0525] An embodiment of the present application further provides a computer program product or a computer program, wherein the computer program product or the computer program includes computer instructions, wherein the computer instructions are stored in a computer-readable storage medium, and a processor reads and executes the computer instructions from the computer-readable storage medium to implement the above-mentioned cell measurement method.
[0526] The processor in the embodiment of the present application includes: an Application Specific Integrated Circuit (ASIC).
[0527] It should be understood that the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.
[0528] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.
[0529] The term "multiple" as used herein refers to two or more than two. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.
[0530] In addition, the step numbers described in this document only illustrate a possible execution order between the steps. In some other embodiments, the above steps may not be executed in the order of the numbers, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in the opposite order to that shown in the figure. The embodiments of the present application are not limited to this.
[0531] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented with hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a general or special-purpose computer can access.
[0532] The above description is only an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A cell measurement method, characterized in that: The method is performed by a terminal device, and the method includes: Based on the L1 measurement configuration, perform neighboring cell L1 measurement.
2. The method according to claim 1, characterized in that The method further comprises: Receiving third indication information sent by the network device; and / or, Sending capability indication information to the network device; Among them, the third indication information is used to activate or deactivate the neighboring cell L1 measurement function of the terminal device, the capability indication information is used to indicate whether the terminal device has the ability to perform the neighboring cell L1 measurement, and / or, the capability indication information is used to indicate whether the terminal device has the ability to report measurement auxiliary information of the neighboring cell L1 measurement.
3. A cell measurement method, characterized in that: The method is performed by a network device, and the method includes: An L1 measurement configuration is sent to a terminal device, where the L1 measurement configuration is used by the terminal device to perform neighboring cell L1 measurement.
4. The method according to claim 3, characterized in that The method further comprises: Sending third indication information to the terminal device; and / or, Receiving capability indication information sent by the terminal device; Among them, the third indication information is used to activate or deactivate the neighboring cell L1 measurement function of the terminal device, the capability indication information is used to indicate whether the terminal device has the ability to perform the neighboring cell L1 measurement, and / or, the capability indication information is used to indicate whether the terminal device has the ability to report measurement auxiliary information of the neighboring cell L1 measurement.
5. The method according to any one of claims 1 to 4, characterized in that: The L1 measurement configuration includes: a measurement reference signal configuration used to perform the neighboring cell L1 measurement.
6. The method according to claim 5, characterized in that The measurement reference signal includes a synchronization signal / physical broadcast channel block SSB, and the measurement reference signal configuration includes a configuration corresponding to an SSB resource of a neighboring cell to be measured; or, The measurement reference signal includes a channel state information reference signal CSI-RS, and the measurement reference signal configuration includes a configuration corresponding to a CSI-RS resource of a neighboring cell to be measured; or, The measurement reference signal includes an SSB and a CSI-RS, and the measurement reference signal configuration includes a configuration corresponding to an SSB resource of the neighboring cell to be measured and a configuration corresponding to a CSI-RS resource of the neighboring cell to be measured.
7. The method according to claim 6, characterized in that The configuration corresponding to the SSB resource of the neighboring cell to be measured includes at least one of the following: The cell identifier of the neighboring cell to be measured; At least one SSB identifier of the neighboring cell to be measured; The reference signal measurement window configuration corresponding to the SSB resource of the neighboring cell to be measured.
8. The method according to claim 7, characterized in that The reference signal measurement window configuration includes at least one of the following: The period during which the reference signal measurement window appears; The offset within the period in which the reference signal measurement window appears; The duration of the reference signal measurement window; The cell identification information corresponding to the time reference cell associated with the reference signal measurement window.
9. The method according to any one of claims 6 to 8, characterized in that: The configuration corresponding to the CSI-RS resource of the neighboring cell to be measured includes at least one of the following: The cell identifier of the neighboring cell to be measured; A logical identifier corresponding to at least one CSI-RS resource of a neighboring cell to be measured; The time domain resource configuration corresponding to at least one CSI-RS resource of the neighboring cell to be measured; Frequency domain resource configuration corresponding to at least one CSI-RS resource of the neighboring cell to be measured; A quasi-co-site QCL reference signal configuration associated with at least one CSI-RS resource of the neighboring cell to be measured.
10. The method according to any one of claims 5 to 9, characterized in that: The measurement reference signal configuration is performed according to the physical cell identifier PCI granularity; or, The measurement reference signal configuration is performed according to the frequency point and PCI combination granularity; or, The measurement reference signal configuration is performed according to the cell granularity.
11. The method according to any one of claims 1 to 10, characterized in that: The objects measured in the neighboring cell L1 include: At least one co-frequency neighboring cell of the serving cell, and / or, at least one hetero-frequency neighboring cell of the serving cell.
12. A terminal device, characterized in that: The terminal device comprises a processor and a memory, wherein the memory stores computer instructions, and when the computer instructions are executed, the terminal device implements the cell measurement method according to any one of claims 1 to 2 and 5 to 11.
13. A network device, characterized in that: The network device comprises a processor and a memory, wherein the memory stores computer instructions, and when the computer instructions are executed, the network device implements the cell measurement method according to any one of claims 3 to 11.
14. A chip, characterized in that: The chip includes a programmable logic circuit and / or a program instruction, and when the chip is running, is used to implement the cell measurement method according to any one of claims 1 to 11.