Communication method, terminal equipment and network equipment

Abstract

Provided are a communication method, a terminal device and a network device, the communication method comprising: a terminal device receiving first information sent by a network device, the first information comprising a synchronization signal broadcast channel block (SSB) measurement timing configuration (SMTC), the SMTC being used for detecting an on-demand SSB. Therefore, the terminal equipment can execute the measurement operation for the on-demand SSB by using the SMTC, and the measurement requirement of the on-demand SSB is met.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a communication method, a terminal device and a network device. Background Art

[0002] Before cell configuration, the terminal device needs to use the synchronization signal block / physical broadcast channel block (SS / PBCH block, SSB) to measure the cell. SSB is crucial for the terminal device to detect and synchronize cells in the cellular network and may affect the communication network. Therefore, how to improve the detection performance of SSB has become a problem that needs to be solved. Summary of the invention

[0003] The present application provides a communication method, a terminal device and a network device. The following introduces various aspects involved in the present application.

[0004] In a first aspect, a communication method is provided, comprising: a terminal device receives first information sent by a network device, the first information comprising an SSB measurement timing configuration (SSB-based measurement timing configuration, SMTC), and the SMTC is used to detect on-demand SSB.

[0005] In a second aspect, a communication method is provided, comprising: a network device sends first information to a terminal device, the first information comprising an SSB measurement timing configuration SMTC, and the SMTC is used to detect on-demand SSB.

[0006] According to a third aspect, a terminal device is provided, comprising: a receiving unit for receiving first information sent by a network device, wherein the first information comprises an SSB measurement timing configuration SMTC, and the SMTC is used to detect on-demand SSB.

[0007] In a fourth aspect, a network device is provided, comprising: a sending unit, configured to send first information to a terminal device, wherein the first information comprises an SSB measurement timing configuration SMTC, and the SMTC is used to detect on-demand SSB.

[0008] In a fifth aspect, a terminal device is provided, comprising a processor, a memory, and a transceiver, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the terminal device executes part or all of the steps in the method of the first aspect.

[0009] In a sixth aspect, a network device is provided, comprising a processor, a memory, and a transceiver, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the network device executes part or all of the steps in the method of the second aspect.

[0010] In a seventh aspect, an embodiment of the present application provides a communication system, which includes the above-mentioned terminal device and / or network device. In some implementations, the communication system also includes other devices that interact with the terminal device and / or network device in the solution provided by the embodiment of the present application.

[0011] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein the computer program enables a terminal device and / or a network device to execute part or all of the steps in the methods of the above aspects.

[0012] In a ninth aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a terminal device and / or a network device to perform some or all of the steps in the above-mentioned various aspects of the method. In some implementations, the computer program product may be a software installation package.

[0013] In the tenth aspect, an embodiment of the present application provides a chip, which includes a memory and a processor. The processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects.

[0014] In an embodiment of the present application, the network device sends first information to the terminal device, and the first information includes STMC. Since the SMTC can be used for the detection of on-demand SSB, the terminal device can use the SMTC to perform measurement operations for the on-demand SSB, thereby meeting the measurement requirements of the on-demand SSB. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a wireless communication system applied in an embodiment of the present application.

[0016] Figure 2 It is a schematic flow chart of a communication method according to an embodiment of the present application.

[0017] Figure 3 It is a schematic flowchart of a communication method according to another embodiment of the present application.

[0018] Figure 4 It is a schematic block diagram of a terminal device according to an embodiment of the present application.

[0019] Figure 5 It is a schematic block diagram of a network device according to an embodiment of the present application.

[0020] Figure 6 It is a schematic block diagram of a device for communication according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] Communication System

[0022] The technical solution in this application will be described below in conjunction with the accompanying drawings. Figure 1 Introduce communication terms and communication processes that may be involved in the embodiments of the present application.

[0023] Figure 1 The wireless communication system 100 used in the embodiment of the present application may include a network device 110 and a terminal device 120. The network device 110 may provide communication coverage for a specific geographical area and may communicate with the terminal device 120 located in the coverage area.

[0024] Figure 1 One network device 110 and two terminal devices 120 are exemplarily shown. Optionally, the wireless communication system 100 may include multiple network devices 100, and each network device 100 may include other number of terminal devices 110 within its coverage area. In addition, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity.

[0025] In the embodiments of the present application, the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal device, wireless communication device, user agent or user device. The terminal device may be, for example, a device that provides voice and / or data connectivity to a user, and may be used to connect people, objects and machines, such as household appliances, sensors, and electronic tags with wireless connection functions. The terminal device may also be a wireless terminal in a smart home, a wireless terminal in an IWSN, a wireless terminal in smart logistics and smart warehousing, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, and the like.

[0026] The network device may be a device for communicating with the terminal device. The network device may also be an access network device or a radio access network device, for example, the network device may be a base station. The network device in the embodiment of the present application may refer to a radio access network (RAN) node or device that connects the terminal device to the wireless network. The base station may broadly cover various names as follows, or may be replaced with the following names, for example: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station (MeNB), secondary station SeNB (MeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, base band unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), centralized unit (CU), distributed unit (DU), positioning node, etc. The base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station may also refer to a communication module, modem or chip used to be set in the aforementioned device or apparatus. The base station may also be a mobile switching center and a device to device D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication device that performs the base station function, a network side device in a 6G network, and a device that performs the base station function in a future communication system. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network equipment.

[0027] The base station may be fixed or mobile. For example, a helicopter or drone may be configured to act as a mobile base station, and one or more cells may move according to the location of the mobile base station. In other examples, a helicopter or drone may be configured to act as a device for communicating with another base station.

[0028] The network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons and satellites in the air. The embodiments of the present application do not limit the scenarios in which the network equipment and terminal equipment are located.

[0029] In some deployments, the network device may refer to a CU or a DU; or, the network device includes a CU and a DU. Optionally, the gNB may include an AAU.

[0030] It should be understood that all or part of the functions of the communication device in the present application may also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform such as a cloud platform.

[0031] Carrier Aggregation

[0032] Carrier aggregation (CA) is a technology that improves the data transmission rate of wireless communication systems by combining multiple carrier spectrum resources to increase the total bandwidth to increase the peak data rate of users in the uplink and downlink. CA can be used in scenarios involving the same frequency band and different frequency bands. In the same-band CA, component carriers (CCs) belonging to the same frequency band are aggregated together, where the frequency range can be one of the FR1 band or the FR2 band. In different-band CA, CCs belonging to different frequency bands are aggregated together, where different frequency bands can include FR1 band and FR2 band, etc.

[0033] CA allows two or more adjacent or non-adjacent CCs to be aggregated to form wider bandwidth resources, and jointly schedule data for users. For example, if the bandwidth of each carrier is 20MHz, by aggregating 5 such carriers, a bandwidth of 100MHz can be obtained, thereby significantly improving the data transmission rate. CA can be classified according to the distribution and combination of spectrum resources, for example, it can include the following types: intra-band contiguous CA, that is, the aggregated carriers are in the same frequency band and are continuous; intra-band non-contiguous CA, that is, the aggregated carriers are in the same frequency band but not continuous; inter-band CA, that is, the aggregated carriers are in different frequency bands.

[0034] By increasing the effective bandwidth, the user's data transmission rate can be significantly improved, and the system can support more users and higher throughput. CA can effectively utilize scattered spectrum resources and improve the utilization rate of spectrum resources. In some scenarios, by aggregating carriers in different frequency bands, the coverage performance of the network can be improved.

[0035] The implementation of CA involves multiple technical aspects, such as scheduling and resource management, hardware design for multi-carrier support, and signal processing. Based on user needs and network conditions, a system using CA dynamically allocates and manages aggregated carriers, and terminal devices and network equipment need to support multi-carrier transceiver functions.

[0036] In mobile broadband (MBB) scenarios, CA can improve user experience, especially in scenarios with high data rate requirements such as high-definition video streaming and online games. In some large-scale Internet of Things (IoT) applications, CA helps to improve network capacity and coverage. In short, CA provides enterprise users with highly reliable and high-speed wireless network connections.

[0037] SSB

[0038] SSB plays an important role in the initial access, synchronization and acquisition of broadcast information of the cell by the terminal device, for example, carrying the cell identity (ID), performing time-frequency synchronization, indicating symbol level / time slot level / frame timing, beam signal strength / signal quality measurement, and cell signal strength / signal quality measurement, etc. Among them, the cell signal strength / signal quality measurement may include, for example, radio resource management (RRM) measurement / channel state information (CSI) measurement, etc. The beam signal strength / signal quality measurement can be used to perform beam selection, perform beam fault detection, perform beam fault recovery, etc.

[0039] SSB includes part or all of the information such as primary synchronization signal (PSS), secondary synchronization signal (SSS), physical broadcast channel (PBCH), and demodulation reference signal (DMRS). Among them, PBCH carries master information block (MIB), and MIB information may include control resource set (CORESET) corresponding to the search space of physical downlink control channel (PDCCH). The PDCCH is a PDCCH in Type-0 format, which is used to carry system information block (SIB) 1. The terminal device can determine the PDCCH based on the MIB information, and then obtain SIB1 on the corresponding physical downlink shared channel (PDSCH) based on the PDCCH. SIB1 provides the key information required by the terminal device during initial access and normal operation, which can ensure that the terminal device is correctly synchronized, selects the appropriate cell, performs random access, and obtains the basic configuration parameters of the network. Through SIB1, the terminal device can communicate with the network device efficiently to ensure a stable and reliable connection. SIB1 includes key system information required for the terminal device to access the network, such as Public Land Mobile Network (PLMN) information, cell selection information, time and frequency information, access parameters, power control information, cell broadcast information, public alarm information, and other information. Other information includes, for example, cell access restrictions, registration area related information, etc.

[0040] SSB transmission method

[0041] In the CA scenario, in addition to the primary cell (PCell), the system will also configure one or more secondary cells (SCells), which together provide users with higher data rates and better coverage.

[0042] In the 5G next generation wireless (next radio, NR) system, SSB is usually not transmitted on the SCell. SSB is mainly used for transmission on the PCell, while the SCell does not need to transmit SSB because the terminal device can perform synchronization and initial access through the SSB on the PCell. When the terminal device completes synchronization and initial access through the SSB on the PCell, the SCell can be configured and activated through radio resource control (RRC) signaling or medium access control (MAC) control element (CE), thereby providing flexible CA and cell management. For example, add, modify or release the SCell through RRC connection reconfiguration; for another example, activate or deactivate the SCell through MAC CE. In this way, in the case of limited spectrum resources, unnecessary SSB transmission can be reduced, thereby improving spectrum efficiency and reducing power consumption of network devices and terminal devices, especially the power consumption of network devices.

[0043] Although SSB is not usually transmitted on SCell, it may be necessary to transmit SSB on SCell in some specific scenarios. For example, in some standalone deployment scenarios, SCell may need to transmit SSB to support synchronization and access of terminal devices. For another example, in some complex switching scenarios, transmitting SSB on SCell can help terminal devices complete inter-cell switching more smoothly.

[0044] Cell Measurement

[0045] Before configuring SCell for the terminal device, the terminal device regards it as a neighboring cell and performs neighboring cell measurements. When performing neighboring cell measurements, the terminal device first needs to identify and measure the signal strength and quality of the neighboring cell. These measurements help the network device determine whether to configure a cell as the SCell of the terminal device. The terminal device scans the spectrum to find all possible neighboring cells, and measures the signal strength of the found neighboring cells, such as reference signal received power (RSRP), and the signal quality, such as reference signal received quality (RSRQ) and signal to interference plus noise ratio (SINR). In order to perform these measurements, the terminal device needs to operate according to specific timing and configuration, which is SMTC. SMTC defines information such as measurement periodicity, measurement window, SSB time-frequency position, and offset of the measurement window relative to the reference time in the measurement object (MO). The terminal device performs measurements based on the corresponding time interval, time period, frequency band, offset, etc. to ensure that the measurement operation does not conflict with the activities of other terminal devices. That is to say, the terminal device needs to measure the neighboring cells based on the SMTC corresponding to the MO.

[0046] MO is used to indicate the object and parameters to be measured, such as the frequency band and cell that the terminal device needs to measure. MO includes SSB measurement configuration such as SMTC, which is used to instruct the terminal device how to perform SSB measurement. SMTC includes SSB measurement timing, such as the measurement period, measurement time window, start measurement time and other parameters for the terminal device to perform SSB measurement.

[0047] When the terminal device performs SSB measurement of a neighboring cell, the terminal device receives the MO sent by the network device and obtains the SMTC in the MO. The network device can send the MO and SMTC to the terminal device through, for example, RRC signaling. After obtaining the SMTC, the terminal device performs a frequency scan, that is, scans the neighboring cells based on the obtained frequency information. Then, the terminal device performs measurements within a specified time period, that is, according to the configuration in the SMTC, based on the specified measurement period, and within the specified measurement window. After the measurement is completed, the terminal device reports the measurement results to the network device, and the network device determines whether to configure the cell as the SCell of the terminal device based on the measurement results.

[0048] As an example, the specific configuration of the MO and SMTC sent by the network device to the terminal device may include the parameters shown in Table 1 and their corresponding contents.

[0049] Table 1

[0050] MO SMTC Measurement frequency n78 (3.5GHz band) Measuring cycle 20ms Measurement Window 5ms Offset 4ms

[0051] As shown in Table 1, after receiving these configuration information, the terminal device starts a measurement every 20ms and performs SSB measurement within the next 5ms to measure the signal strength and quality of all neighboring cells on frequency band n78.

[0052] In the 5G NR network, the terminal device needs to consider it as a neighboring cell and perform SSB measurement before being configured with SCell. This process is defined by SMTC in MO, including information such as measurement period, measurement window, measurement frequency and offset. Through these measurements, the network equipment determines whether to configure the cell as the SCell of the terminal device, thereby optimizing network performance and user experience.

[0053] In a 5G NR network, multiple steps are involved in the process of configuring and activating SCell, for example, from discovering cells and measuring cells to configuring and activating cells, and from configuration instructions of network devices to the execution of specific operations by terminal devices. As an example, the configuration and activation of SCell may include some or all of the following steps.

[0054] In step 1, the neighboring cell measures

[0055] Before configuring SCell, the terminal device first needs to discover and measure neighboring cells. The terminal device obtains the MO. For example, the network device sends the MO to the terminal device through RRC signaling to specify information such as the frequency band and cell to be measured. The MO includes SMTC, which is used to instruct the terminal device to measure the SSB of the neighboring cell within a specific time window. The terminal device measures the SSB of the neighboring cell based on the MO and SMTC, and collects information such as signal strength, such as RSRP, and signal quality, such as RSRQ, SINR, etc. The terminal device reports the measurement results to the network device so that the network device can make cell configuration decisions based on these results.

[0056] In step 2, SCell configuration

[0057] The network device sends an RRC connection reconfiguration message to the terminal device, which includes the configuration information of the SCell, such as the frequency band and bandwidth of the SCell, the physical cell identification (PCI) of the SCell, the downlink and uplink configuration of the SCell, etc. After receiving the RRC connection reconfiguration message, the terminal device configures the relevant parameters of the SCell according to the information in the RRC connection reconfiguration message.

[0058] In step 3, SCell activation / deactivation

[0059] After the SCell is configured, the network device can dynamically activate or deactivate the SCell as needed to optimize resource utilization and user experience. The activation and deactivation process is implemented through MAC CE. MAC CE is a special control signaling used to transmit control information of the MAC layer. The processing delay of MAC CE is smaller than the control signaling of the RRC layer, and the SCell can be activated faster.

[0060] After receiving the activation command, the terminal device starts to transmit data on the SCell, including starting the physical layer processing and resource scheduling of the SCell.

[0061] When the network device determines that the SCell is no longer needed, it sends a deactivation command to the terminal device through the MAC CE. After receiving the deactivation command, the terminal device stops data transmission on the SCell and releases related resources.

[0062] The configuration and activation process of SCell is part of CA in 5G NR, which aims to optimize the utilization of spectrum resources and improve network performance and user experience. By measuring neighbor cells, configuring SCell parameters, and dynamically activating and deactivating SCell, network equipment can flexibly manage spectrum resources, provide higher data transmission rates and better service quality, which is crucial for optimizing network deployment and operation and meeting user needs.

[0063] The network device may periodically send SSBs to enable the terminal device to keep synchronization with the network device or the serving cell or to perform cell measurement. For the terminal device, since it is impossible to ensure that each SSB transmitted on the SCell is effectively utilized, it may lead to a waste of resources.

[0064] To this end, on-demand SSB is proposed. Different from the periodically sent SSB, on-demand SSB is only sent within a period of time. For example, on-demand SSB may include two situations. One is that the network device sends SSB within a period of time for the terminal device to detect SSB, and the network device can indicate the information of this period of time to the terminal device through control signaling such as RRC signaling or / MAC CE; the other is that the terminal device requests SSB from the network device on demand, and the network device can send SSB based on the request of the terminal device. In this way, the waste of resources can be reduced.

[0065] In order to meet the measurement requirements of on-demand SSB, an embodiment of the present application provides a communication method, which adds SSB type indication information in the STMC to indicate whether the SSB is an on-demand SSB, so that the terminal device can identify the SMTC for the on-demand SSB and perform measurement operations for the on-demand SSB based on the SMTC.

[0066] Figure 2 It is a schematic flow chart of the communication method of an embodiment of the present application. Figure 2 The method 200 shown can be performed by a terminal device and a network device. Figure 2 As shown, method 200 includes part or all of the following steps.

[0067] In step 210, the network device sends first information to the terminal device.

[0068] Correspondingly, in step 220, the terminal device receives the first information sent by the network device.

[0069] The first information includes the SMTC. For example, the first information is carried in RRC signaling. For another example, the first information is an MO, and the MO includes the SMTC.

[0070] In an embodiment of the present application, the SMTC can be used for the detection of on-demand SSB, so the terminal device can use the SMTC to perform measurement operations for the on-demand SSB, meeting the measurement requirements of the on-demand SSB.

[0071] In some implementations, the terminal device may also receive SSB type indication information, where the SSB type indication information is used to indicate whether the SMTC is for detection of on-demand SSB, or in other words, the SSB type indication information is used to indicate whether the SMTC is used to detect on-demand SSB. For example, when the SSB type indication information is different values, different SSB types may be represented. Exemplarily, when the SSB type indication information is 1 or YES, it indicates that the SMTC is for detection of on-demand SSB; when the SSB type indication information is 0 or NO, it indicates that the SMTC is not for detection of on-demand SSB.

[0072] Optionally, the SSB type indication information is carried in the first information, that is, the first information includes the SSB type indication information. In this case, both the SSB type indication information and the SMTC are carried in the first information. Alternatively, the SSB type indication information may also be carried in other signaling, such as other RRC signaling related to on-demand SSB.

[0073] The terminal device can determine whether the SMTC is used for on-demand SSB detection based on the on-demand SSB type indication information, thereby identifying the SMTC for the on-demand SSB and using the SMTC to perform measurement operations for the on-demand SSB.

[0074] When the SSB type indication information indicates that SMTC is used to detect on-demand SSB, and the cell has not been configured, the cell can be measured through the SMTC. As an example, taking the first information as MO as an example, after adding SMTC for on-demand SBB in the configuration of MO, the specific content of the configuration in MO can be as follows.

[0075]

[0076]

[0077] Before the network device configures the cell to the terminal device, the terminal device regards it as a neighboring cell, and the terminal device needs to measure the cell according to the SMTC in the received first information. Optionally, the SMTC may also include one or more of the following information: the measurement period of the SSB, the measurement window of the SSB, the measurement frequency of the SSB, and the offset of the measurement window relative to the reference time.

[0078] Among them, the measurement period in SMTC is used to indicate how long the terminal device needs to perform an SSB measurement. For example, common measurement periods include 20 milliseconds, 40 milliseconds, etc. The measurement frequency information in SMTC, namely the frequency band information, is used to indicate on which frequency band the terminal device should perform SSB measurement. The SSB measurement may involve one or more frequency bands. The measurement window in SMTC is used to indicate the specific time period within the measurement period in which the terminal device performs SSB measurement. In addition, in order to reduce the impact on other operations of the terminal device, the length of the measurement window can usually be set to be shorter. The SSB offset value in SMTC is used to indicate the offset of the SSB measurement window relative to a reference time, so that the measurement window is aligned with the transmission time of the SSB.

[0079] As an example, the specific content of the first information can be as follows, where the measurement period is 20ms, the measurement window is 5ms, the measurement frequency is 36000Hz, and the offset is 4 as an example, and the SSB type indication information (ssbType) is added in the SMTC to indicate whether the SMTC is an on-demand SSB.

[0080]

[0081] When a terminal device switches from one cell to another, it is no longer necessary to perform SSB measurements on the previous cell, or when the network device determines to stop using a certain cell, the network device maliciously instructs the terminal device to stop using the current SMTC for SSB measurements, thereby releasing related resources. In related technologies, the network device can notify the terminal device to stop using the current SMTC for SSB measurements by sending RRC signaling to the terminal device. As an example, the specific content of the RRC signaling can be as follows:

[0082] RRCConnectionReconfiguration

[0083] releaseSMTC:true

[0084] }

[0085] After receiving the RRC signaling, the terminal device stops measuring based on the current SMTC configuration and releases resources related to the SMTC, including, for example, stopping related measurement timers and processes.

[0086] After configuring SMTC, if SMTC is ended through RRC signaling, due to the large size of RRC signaling packets, more network resources need to be consumed, and due to the large processing delay of the control signaling at the RRC layer, the terminal device may not be able to release SMTC resources in time, thereby affecting network performance.

[0087] Since on-demand SSB is transmitted over a period of time, in some implementations, for example Figure 3 As shown, method 200 may further include step 230 .

[0088] In step 230, the terminal device releases the resources of the SMTC based on the transmission of the on-demand SSB.

[0089] The following are several ways to release SMTC resources, thereby reducing latency and saving network resources. Here, releasing SMTC resources, for example, means stopping using the SMTC resources for SSB detection.

[0090] Method 1

[0091] The terminal device can release the resources of the SMTC when the transmission of the on-demand SSB ends. Since the transmission of the on-demand SSB is within a period of time, the terminal device can release the resources of the SMTC when the on-demand SSB transmission ends.

[0092] Optionally, the terminal device can determine whether the transmission of the on-demand SSB is completed based on the signaling related to the on-demand SSB sent by the network device.

[0093] For example, the network device may send third information to the terminal device, and the third information is used to indicate the end time of the transmission of the on-demand SSB. The third information is also used to instruct the terminal device to release the resources of the SMTC, such as the frequency resources and / or time resources occupied by the SMTC. Accordingly, when the terminal device receives the third information, it may release the resources of the SMTC at the end of the transmission of the on-demand SSB or at the end of a preset time after the transmission of the on-demand SSB ends. The preset time may be, for example, a protocol agreement or sent by the network device.

[0094] Method 2

[0095] The network device may send the second information to the terminal device, and correspondingly, the terminal device receives the second information sent by the network device. The second information is used to indicate activation of the current cell. For example, the second information may be a MAC CE.

[0096] In this implementation, the second information is also used to instruct the terminal device to release the resources of the SMTC, such as the frequency resources and / or time resources occupied by the SMTC. When the terminal device detects SSB according to the SMTC, in the case where the SMTC is for on-demand SSB, the terminal device can end the corresponding SMTC according to the activation status of the current cell and release the resources of the SMTC. This is because the activation of the cell indicates that the configuration of the cell has been completed, that is, the terminal device may have detected the SSB and reported the measurement results to the network device, and the network device has configured the cell to the terminal device. At this time, the terminal device does not need to perform SSB detection, so the resources of the SMTC can be released without waiting for the RRC signaling used to instruct it to release the SMTC to release the resources of the SMTC, thereby allowing the terminal device to release unnecessary resources in a timely manner and save network resources.

[0097] Method 3

[0098] The first information may also include measurement time information, where the measurement time information is used to instruct the terminal device to release the resources of the SMTC, such as the frequency resources and / or time resources occupied by the SMTC.

[0099] The terminal device can end the corresponding SMTC according to the measurement time information in the first information and release the resources of the SMTC without waiting for the RRC signaling used to instruct it to release the SMTC resources, thereby enabling the terminal device to release unnecessary resources in a timely manner and save network resources.

[0100] The measurement time information may be pre-agreed, such as specified by a protocol, or may be configured through high-level signaling, or may be calculated by the terminal device based on relevant information.

[0101] In some implementations, the measurement time information may include the number of measurement cycles of the on-demand SSB.

[0102] For example, the number of measurement cycles is determined based on the transmission duration of the on-demand SSB and the duration of the measurement cycle.

[0103] Assuming that the number of measurement cycles in the measurement time information is N, the terminal device determines to end the SSB detection based on the SMTC after N cycles of SSB detection. If the transmission duration of the on-demand SSB is M, that is, the on-demand SSB ends after the transmission duration M, then N can be determined based on M and the measurement cycle of the on-demand SSB, for example, N is equal to M divided by the length of the measurement cycle of the on-demand SSB.

[0104] For another example, the number of the measurement cycles is determined based on the maximum number of SSBs detected by the combined detection.

[0105] Assuming that the number of measurement cycles in the measurement time information is N, and the terminal device supports combined detection of up to 4 SSBs when performing SSB detection, then N can be set to 4. In the combined detection, the detection result of the previous SSB can be used for the detection of the subsequent SSB. For example, when the maximum number of SSBs is 8, SSB0 to SSB3 can be combined for detection, or SSB4 to SSB7 can be combined for detection.

[0106] The value of N may be constant, or may vary based on changes in other information.

[0107] In some other implementations, the measurement time information may directly include the effective duration of the SMTC.

[0108] For example, the effective duration of SMTC can be determined based on the transmission duration of on-demand SSB. Since on-demand SSB stops transmitting after a period of time, the terminal device can release the resources of SMTC after the measurement of on-demand SSB is completed, so the effective duration of SMTC can be equal to the transmission duration of on-demand SSB.

[0109] For another example, the effective duration of SMTC is determined based on the measurement period of the on-demand SSB and the maximum number of SSBs for combined detection. Assuming that the number of measurement periods of the on-demand SSB is N, and the terminal device supports combined detection of up to 4 SSBs when performing SSB detection, the effective duration of SMTC can be 4N.

[0110] As an example, the specific content of the first information can be as follows, where the measurement period is 20ms, the measurement window is 5ms, the measurement frequency is 36000Hz, and the offset is 4 as an example, and the measurement time information is added to the SMTC, such as the number of measurement periods or the effective duration of the SMTC.

[0111]

[0112] It should be noted that, in an embodiment of the present application, the first information may include both SSB type indication information and measurement time information; or it may include only one of the SSB type indication information and the measurement time information; or the first information does not include the SSB type indication information and the measurement time information, but determines by other means whether the SMTC in the first information is used to detect on-demand SSB and when to release the SMTC resources.

[0113] For example, the first information includes SSB type indication information but does not include measurement time information. The terminal device determines whether the SMTC in the first information is for the on-demand SSB through the SSB type indication information, and if the SMTC is for the on-demand SSB, determines when to release the resources of the SMTC through other means, such as based on RRC signaling sent by the network device, the transmission end time of the on-demand SSB, or the above-mentioned second information.

[0114] For another example, the first information includes measurement time information but does not include SSB type indication information. The terminal device can determine whether the SMTC in the first information is for on-demand SSB by other means, and if the SMTC is for on-demand SSB, determine when to release the resources of the SMTC based on the measurement time information in the first information.

[0115] For another example, the first information includes SSB type indication information and measurement time information. The terminal device determines whether the SMTC in the first information is for on-demand SSB through the SSB type indication information, and if the SMTC is for on-demand SSB, the terminal device releases the resources of the SMTC after the duration indicated by the measurement time information in the first information expires.

[0116] Of course, the first information may not include SSB type indication information and / or measurement time information, but instead determine by other means whether the SMTC in the first information is used to detect on-demand SSB and when to release the SMTC resources.

[0117] As an example, the specific content of the first information is as follows, where the measurement period is 20ms, the measurement window is 5ms, the measurement frequency is 36000Hz, and the offset is 4 as an example, and the first information includes SSB type indication information and measurement time information as an example.

[0118] RCConnectionReconfiguration{

[0119] measurementObject{

[0120] ssbMeasurementTimingConfiguration{

[0121] measurementPeriodicity:ms20,

[0122] measurementWindow:ms5,

[0123] frequency:36000

[0124] ssbOffset:4

[0125] ssbType: On-demand SSB or not

[0126] measurementTime: the number of measurement cycles / effective duration of SMTC

[0127] }

[0128] }

[0129] }

[0130] Combination of the above Figures 2 to 3 , describes the method embodiment of the present application in detail, and the following is combined with Figures 4 to 6 , describes the device embodiment of the present application in detail. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the parts not described in detail can refer to the previous method embodiment.

[0131] Figure 4 It is a schematic diagram of a terminal device according to an embodiment of the present application. Figure 4 The terminal device 300 shown may include a receiving unit 310. Optionally, the terminal device 300 further includes a processing unit 320.

[0132] The receiving unit 310 is used to receive first information sent by a network device, wherein the first information includes an SMTC for measuring a synchronization signal block SSB; wherein the first information also includes SSB type indication information, and the SSB type indication information is used to indicate whether the SMTC is for detection of an on-demand SSB.

[0133] In some implementations, the receiving unit 310 is further used to receive SSB type indication information, where the SSB type indication information is used to indicate that the SMTC is used to detect the on-demand SSB.

[0134] In some implementations, the SSB type indication information is carried in the first information.

[0135] In some implementations, the processing unit 320 is configured to release resources of the SMTC based on the transmission of the on-demand SSB.

[0136] In some implementations, the receiving unit 310 is further used to receive second information sent by the network device, where the second information is used to indicate activation of the current cell; and the processing unit 320 is further used to release resources of the SMTC based on the second information.

[0137] In some implementations, the receiving unit 310 is further used to receive third information sent by the network device, wherein the third information is used to indicate the end time of the transmission of the on-demand SSB; the processing unit 320 is further used to release the resources of the SMTC based on the third information at the end of the transmission of the on-demand SSB or at the end of a preset time after the end of the transmission of the on-demand SSB.

[0138] In some implementations, the first information also includes measurement time information, and the measurement time information is used to instruct the terminal device to release the resources of the SMTC.

[0139] In some implementations, the measurement time information includes the number of measurement cycles of the on-demand SSB.

[0140] In some implementations, the number of measurement cycles is determined based on the transmission duration of the on-demand SSB and the duration of the measurement cycle; or, the number of measurement cycles is determined based on the maximum number of SSBs detected by the combined detection.

[0141] In some implementations, the measurement time information includes a valid duration of the SMTC.

[0142] In some implementations, the effective duration of the SMTC is determined based on the transmission duration of the on-demand SSB; or, the effective duration of the SMTC is determined based on the measurement period of the on-demand SSB and the maximum number of SSBs detected in combination.

[0143] In some implementations, the first information is carried in radio resource control RRC signaling, and / or the first information is a measurement object MO.

[0144] In some implementations, the SMTC includes one or more of the following information: a measurement period of the SSB, a measurement window of the SSB, a measurement frequency of the SSB, and an offset of the measurement window relative to a reference time.

[0145] Figure 5 It is a schematic diagram of a network device according to an embodiment of the present application. Figure 5 The network device 400 shown includes a sending unit 410 .

[0146] Among them, the sending unit 410 is used to send first information to the terminal device, and the first information includes the synchronization signal broadcast channel block SSB measurement timing configuration SMTC, and the SMTC is used to detect the on-demand SSB.

[0147] In some implementations, the sending unit 410 is further used to send SSB type indication information to the terminal device, where the SSB type indication information is used to indicate that the SMTC is used to detect the on-demand SSB.

[0148] In some implementations, the SSB type indication information is carried in the first information.

[0149] In some implementations, the sending unit 410 is further used to send second information to the terminal device, where the second information is used to indicate activation of the current cell; wherein the second information is also used to indicate the terminal device to release resources of the SMTC.

[0150] In some implementations, the sending unit 410 is further used to send third information to the terminal device, where the third information is used to indicate the end time of the transmission of the on-demand SSB; wherein the third information is also used to instruct the terminal device to release the resources of the SMTC.

[0151] In some implementations, the first information also includes measurement time information, and the measurement time information is used to instruct the terminal device to release the resources of the SMTC.

[0152] In some implementations, the measurement time information includes the number of measurement cycles of the on-demand SSB.

[0153] In some implementations, the number of measurement cycles is determined based on the transmission duration of the on-demand SSB and the duration of the measurement cycle; or, the number of measurement cycles is determined based on the maximum number of SSBs detected by the combined detection.

[0154] In some implementations, the measurement time information includes a valid duration of the SMTC.

[0155] In some implementations, the effective duration of the SMTC is determined based on the transmission duration of the on-demand SSB; or, the effective duration of the SMTC is determined based on the measurement period of the on-demand SSB and the maximum number of SSBs detected in combination.

[0156] In some implementations, the first information is carried in radio resource control RRC signaling, and / or the first information is a measurement object MO.

[0157] In some implementations, the SMTC includes one or more of the following information: a measurement period of the SSB, a measurement window of the SSB, a measurement frequency of the SSB, and an offset of the measurement window relative to a reference time.

[0158] It can be understood that the receiving unit 310 can be, for example, a transceiver 530, and the processing unit 320 can be a processor 510. In addition, the terminal device 300 can also include a memory 520, for details, see Figure 6 .

[0159] Similarly, the sending unit 410 may be, for example, a transceiver 530. In addition, the network device 400 may also include a processor 510 and a memory 520, for details, see Figure 6 .

[0160] Figure 6 It is a schematic structural diagram of a device for communication according to an embodiment of the present application. Figure 6 The dotted line in the figure indicates that the unit or module is optional. The device can be used to implement the method described in the above method embodiment. The device can be, for example, a chip, a terminal device or a network device.

[0161] like Figure 6As shown, the device 500 may include one or more processors 510. The processor 510 may support the device 500 to implement the method described in the method embodiment of the foregoing text. The processor 510 may be a general-purpose processor or a special-purpose processor. For example, the processor 510 may be a central processing unit (CPU). Alternatively, the processor 510 may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0162] The apparatus 500 may further include one or more memories 520. The memory 520 stores a program, which can be executed by the processor 510, so that the processor 510 executes the method described in the above method embodiment. The memory 520 may be independent of the processor 510 or integrated in the processor 510.

[0163] The apparatus 500 may further include a transceiver 530. The processor 510 may communicate with other devices or chips through the transceiver 530. For example, the processor 510 may transmit and receive data with other devices or chips through the transceiver 530.

[0164] The embodiment of the present application provides a communication system. The system includes the above-mentioned terminal device and / or network device. In some implementations, the system also includes other devices that interact with the terminal device and / or network device.

[0165] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal or network device provided in the present application, and the program enables a computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0166] The embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal or network device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0167] The embodiment of the present application also provides a computer program. The computer program can be applied to the terminal or network device provided in the embodiment of the present application, and the computer program enables a computer to execute the method executed by the terminal device or network device in each embodiment of the present application.

[0168] It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0169] In the embodiments of the present application, the "indication" mentioned 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.

[0170] In the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0171] In the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.

[0172] In the embodiments of the present application, "pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices such as terminal devices and network devices, and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0173] In the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0174] In the embodiments of the present application, the term "include" may refer to direct inclusion or indirect inclusion. Optionally, the term "include" mentioned in the embodiments of the present application may be replaced with "indicate" or "used to determine". For example, "A includes B" may be replaced with "A indicates B" or "A is used to determine B".

[0175] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0176] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0177] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0178] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0179] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless such as infrared, wireless, microwave, etc., to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium such as a floppy disk, a hard disk, a magnetic tape, etc., or an optical medium such as a digital video disc (DVD) or a semiconductor medium such as a solid state disk (SSD), etc.

[0180] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: include: The terminal device receives first information sent by the network device, where the first information includes a synchronization signal broadcast channel block SSB measurement timing configuration SMTC, where the SMTC is used to detect on-demand SSB.

2. The method according to claim 1, characterized in that: The method further comprises: The terminal device receives SSB type indication information, and the SSB type indication information is used to indicate that the SMTC is used to detect the on-demand SSB.

3. The method according to claim 2, characterized in that The SSB type indication information is carried in the first information.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: The terminal device releases the resources of the SMTC based on the transmission of the on-demand SSB.

5. The method according to claim 4, characterized in that The method further comprises: The terminal device receives second information sent by the network device, where the second information is used to instruct activation of the current cell; wherein the second information is also used to instruct the terminal device to release resources of the SMTC.

6. The method according to claim 4, characterized in that The method further comprises: The terminal device releases the resources of the SMTC when the transmission of the on-demand SSB ends, or when a preset time period after the transmission of the on-demand SSB ends.

7. The method according to any one of claims 1 to 6, characterized in that The first information also includes measurement time information, and the measurement time information is used to instruct the terminal device to release the resources of the SMTC.

8. The method according to claim 7, characterized in that The measurement time information includes the number of measurement cycles of the on-demand SSB.

9. The method according to claim 8, characterized in that The number of measurement cycles is determined based on the transmission duration of the on-demand SSB and the duration of the measurement cycle; or, the number of measurement cycles is determined based on the maximum number of SSBs detected by combined detection.

10. The method according to claim 7, characterized in that The measurement time information includes the effective duration of the SMTC.

11. The method according to claim 10, characterized in that The effective duration of the SMTC is determined based on the transmission duration of the on-demand SSB; or, the effective duration of the SMTC is determined based on the measurement period of the on-demand SSB and the maximum number of SSBs detected in combination.

12. The method according to any one of claims 1 to 11, characterized in that The first information is carried in radio resource control RRC signaling, and / or the first information is a measurement object MO.

13. The method according to any one of claims 1 to 12, characterized in that The SMTC includes one or more of the following information: a measurement period of the SSB, a measurement window of the SSB, a measurement frequency of the SSB, and an offset of the measurement window relative to a reference time.

14. A communication method, characterized in that: include: The network device sends first information to the terminal device, wherein the first information includes a synchronization signal broadcast channel block SSB measurement timing configuration SMTC, and the SMTC is used to detect on-demand SSB.

15. The method according to claim 14, characterized in that The method further comprises: The network device sends SSB type indication information to the terminal device, and the SSB type indication information is used to indicate that the SMTC is used to detect the on-demand SSB.

16. The method according to claim 15, characterized in that The SSB type indication information is carried in the first information.

17. The method according to any one of claims 14 to 16, characterized in that The method further comprises: Sending second information to the terminal device, where the second information is used to instruct the activation of the current cell; wherein the second information is also used to instruct the terminal device to release the resources of the SMTC.

18. The method according to any one of claims 14 to 16, characterized in that The method further comprises: Sending third information to the terminal device, wherein the third information is used to indicate the end time of the transmission of the on-demand SSB; wherein the third information is also used to instruct the terminal device to release the resources of the SMTC.

19. The method according to any one of claims 14 to 18, characterized in that The first information also includes measurement time information, and the measurement time information is used to instruct the terminal device to release the resources of the SMTC.

20. The method according to claim 19, characterized in that The measurement time information includes the number of measurement cycles of the on-demand SSB.

21. The method according to claim 20, characterized in that The number of measurement cycles is determined based on the transmission duration of the on-demand SSB and the duration of the measurement cycle; or, the number of measurement cycles is determined based on the maximum number of SSBs detected by combined detection.

22. The method according to claim 19, characterized in that The measurement time information includes the effective duration of the SMTC.

23. The method according to claim 22, characterized in that The effective duration of the SMTC is determined based on the transmission duration of the on-demand SSB; or, the effective duration of the SMTC is determined based on the measurement period of the on-demand SSB and the maximum number of SSBs detected in combination.

24. The method according to any one of claims 14 to 23, characterized in that The first information is carried in radio resource control RRC signaling, and / or the first information is a measurement object MO.

25. The method according to any one of claims 14 to 24, characterized in that The SMTC includes one or more of the following information: a measurement period of the SSB, a measurement window of the SSB, a measurement frequency of the SSB, and an offset of the measurement window relative to a reference time.

26. A terminal device, characterized in that: include: A receiving unit is used to receive first information sent by a network device, wherein the first information includes a synchronization signal broadcast channel block SSB measurement timing configuration SMTC, and the SMTC is used to detect on-demand SSB.

27. The terminal device according to claim 26, characterized in that: The receiving unit is further configured to: Receive SSB type indication information, where the SSB type indication information is used to indicate that the SMTC is used to detect the on-demand SSB.

28. The terminal device according to claim 27, characterized in that: The SSB type indication information is carried in the first information.

29. The terminal device according to any one of claims 26 to 28, characterized in that: Also included is a processing unit, the processing unit being configured to: Based on the transmission of the on-demand SSB, the resources of the SMTC are released.

30. The terminal device according to claim 29, characterized in that: The receiving unit is further used to receive second information sent by the network device, where the second information is used to indicate activation of the current cell; The processing unit is further configured to release resources of the SMTC based on the second information.

31. The terminal device according to claim 29, characterized in that: The receiving unit is further used to receive third information sent by the network device, where the third information is used to indicate the transmission end time of the on-demand SSB; The processing unit is also used to release the resources of the SMTC based on the third information when the transmission of the on-demand SSB ends or when a preset time period after the transmission of the on-demand SSB ends.

32. The terminal device according to any one of claims 26 to 31, characterized in that: The first information also includes measurement time information, and the measurement time information is used to instruct the terminal device to release the resources of the SMTC.

33. The terminal device according to claim 32, characterized in that: The measurement time information includes the number of measurement cycles of the on-demand SSB.

34. The terminal device according to claim 33, characterized in that: The number of measurement cycles is determined based on the transmission duration of the on-demand SSB and the duration of the measurement cycle; or, the number of measurement cycles is determined based on the maximum number of SSBs detected by combined detection.

35. The terminal device according to claim 32, characterized in that: The measurement time information includes the effective duration of the SMTC.

36. The terminal device according to claim 35, characterized in that: The effective duration of the SMTC is determined based on the transmission duration of the on-demand SSB; or, the effective duration of the SMTC is determined based on the measurement period of the on-demand SSB and the maximum number of SSBs detected in combination.

37. The terminal device according to any one of claims 26 to 36, characterized in that: The first information is carried in radio resource control RRC signaling, and / or the first information is a measurement object MO.

38. The terminal device according to any one of claims 36 to 37, characterized in that: The SMTC includes one or more of the following information: a measurement period of the SSB, a measurement window of the SSB, a measurement frequency of the SSB, and an offset of the measurement window relative to a reference time.

39. A network device, characterized in that: include: A sending unit is used to send first information to a terminal device, wherein the first information includes a synchronization signal broadcast channel block SSB measurement timing configuration SMTC, and the SMTC is used to detect on-demand SSB.

40. The network device according to claim 39, characterized in that: The sending unit is further used for: Send SSB type indication information to the terminal device, where the SSB type indication information is used to indicate that the SMTC is used to detect the on-demand SSB.

41. The network device according to claim 40, characterized in that The SSB type indication information is carried in the first information.

42. The network device according to any one of claims 39 to 41, characterized in that: The sending unit is further used for: Sending second information to the terminal device, where the second information is used to instruct the activation of the current cell; wherein the second information is also used to instruct the terminal device to release the resources of the SMTC.

43. The network device according to any one of claims 39 to 41, characterized in that: The sending unit is further used for: Sending third information to the terminal device, wherein the third information is used to indicate the end time of the transmission of the on-demand SSB; wherein the third information is also used to instruct the terminal device to release the resources of the SMTC.

44. The network device according to any one of claims 39 to 43, characterized in that: The first information also includes measurement time information, and the measurement time information is used to instruct the terminal device to release the resources of the SMTC.

45. The network device according to claim 44, characterized in that The measurement time information includes the number of measurement cycles of the on-demand SSB.

46. ​​The network device according to claim 45, characterized in that The number of measurement cycles is determined based on the transmission duration of the on-demand SSB and the duration of the measurement cycle; or, the number of measurement cycles is determined based on the maximum number of SSBs detected by combined detection.

47. The network device according to claim 44, characterized in that The measurement time information includes the effective duration of the SMTC.

48. The network device according to claim 47, characterized in that The effective duration of the SMTC is determined based on the transmission duration of the on-demand SSB; or, the effective duration of the SMTC is determined based on the measurement period of the on-demand SSB and the maximum number of SSBs detected in combination.

49. The network device according to any one of claims 39 to 48, characterized in that: The first information is carried in radio resource control RRC signaling, and / or the first information is a measurement object MO.

50. The network device according to any one of claims 39 to 49, characterized in that: The SMTC includes one or more of the following information: a measurement period of the SSB, a measurement window of the SSB, a measurement frequency of the SSB, and an offset of the measurement window relative to a reference time.

51. A communication device, characterized in that: It includes a transceiver, a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory and control the transceiver to receive or send a signal so that the communication device executes the method as described in any one of claims 1 to 10, or the method as described in any one of claims 11 to 20.

52. A device, characterized in that The device comprises a processor, configured to call a program from a memory so as to enable the device to execute the method according to any one of claims 1 to 10, or the method according to any one of claims 11 to 20.

53. A chip, characterized in that: It comprises a processor, which is used to call a program from a memory so that the chip executes the method according to any one of claims 1 to 10, or the method according to any one of claims 11 to 20.

54. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 10, or the method according to any one of claims 11 to 20.

55. A computer program product, characterized in that The method comprises a program which causes a computer to execute the method according to any one of claims 1 to 10 or the method according to any one of claims 11 to 20.

56. A computer program, characterized in that The computer program enables a computer to execute the method according to any one of claims 1 to 10, or the method according to any one of claims 11 to 20.

Images