Measurement methods and apparatuses, and terminals, network-side devices and medium

Abstract

The present application belongs to the technical field of communications. Disclosed are measurement methods and apparatuses, and terminals, network-side devices and a medium. A measurement method in the embodiments of the present application comprises: on the basis of first information, a terminal receiving a first SSB, and executing a first operation, wherein the first operation comprises at least one of measurement and measurement reporting; the first information is information related to the first SSB on a first cell; the first SSB comprises an on-demand SSB, or comprises an on-demand SSB and an always-on SSB; and the first information comprises at least one of the following: information for triggering the transmission of the first SSB; information for triggering the terminal to execute measurement on the basis of the first SSB; information for triggering the terminal to execute measurement reporting on the basis of the first SSB; a transmission pattern; and a transmission mode before a first moment.

Description

Measurement method, device, terminal, network side equipment and medium

[0001] Cross-reference to Related Applications

[0002] The present application claims priority to the Chinese patent application No. 202411386514.5 filed on September 30, 2024 in China, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the field of communication technology, and specifically relates to a measurement method, device, terminal, network side equipment and medium. BACKGROUND

[0004] For a primary cell (PCell) or a primary secondary cell (PScell), a base station must send a periodic synchronization signal block (SSB), and the period of the SSB must be less than or equal to 20 ms to be successfully searched by a terminal performing initial search. In order to save network energy, the SSB can not be periodically sent on the secondary cell, but an on-demand (OD)-SSB is sent. There are currently two transmission modes of OD-SSB, one of which is that there is no always-on SSB (i.e., always existing SSB) on the cell, and only OD-SSB is supported; the other is that there is always-on SSB on the cell, and OD-SSB is also supported.

[0005] However, there is currently no relevant solution for how a terminal performs measurement or measurement reporting based on the OD-SSB or based on the OD-SSB and the always-on SSB, thereby leading to unclear behavior of the terminal, and even the terminal cannot perform measurement or measurement reporting based on the OD-SSB, which leads to the terminal being unable to perform mobility management based on the OD-SSB or based on the OD-SSB and the always-on SSB, and the network energy saving cannot be achieved. SUMMARY

[0006] Embodiments of the present application provide a measurement method, device, terminal, network side equipment and medium, which can enable the terminal to perform measurement or measurement reporting based on the OD-SSB, thereby reducing network energy consumption.

[0007] In a first aspect, a measurement method is provided, which is performed by a terminal, and includes: receiving, by the terminal, a first SSB based on first information, and performing a first operation; wherein the first operation includes at least one of measurement and measurement reporting; the first information is related information of the first SSB on a first cell; the first SSB includes an on-demand SSB, or includes an on-demand SSB and an always-present SSB; the first information includes at least one of: information triggering transmission of the first SSB; information triggering the terminal to perform measurement based on the first SSB; information triggering the terminal to perform measurement reporting based on the first SSB; a transmission pattern; a transmission mode before a first time point.

[0008] In a second aspect, a measurement method is provided, which is performed by a network-side device, and includes: sending, by the network-side device, first information to a terminal; wherein the first information is related information of a first SSB on a first cell; the first SSB includes an on-demand SSB, or includes an on-demand SSB and an always-present SSB; the first information includes at least one of: information triggering transmission of the first SSB; information triggering the terminal to perform measurement based on the first SSB; information triggering the terminal to perform measurement reporting based on the first SSB; a transmission pattern; a transmission mode before a first time point.

[0009] In a third aspect, a measurement apparatus is provided, which includes a processing module; the processing module is configured to receive a first SSB based on first information, and perform a first operation; wherein the first operation includes at least one of measurement and measurement reporting; the first information is related information of the first SSB on a first cell; the first SSB includes an on-demand SSB, or includes an on-demand SSB and an always-present SSB; the first information includes at least one of: information triggering transmission of the first SSB; information triggering the terminal to perform measurement based on the first SSB; information triggering the terminal to perform measurement reporting based on the first SSB; a transmission pattern; a transmission mode before a first time point.

[0010] In a fourth aspect, a measurement apparatus is provided, which includes a sending module; the sending module is configured to send first information to a terminal; wherein the first information is related information of a first SSB on a first cell; the first SSB includes an on-demand SSB, or includes an on-demand SSB and an always-present SSB; the first information includes at least one of: information triggering transmission of the first SSB; information triggering the terminal to perform measurement based on the first SSB; information triggering the terminal to perform measurement reporting based on the first SSB; a transmission pattern; a transmission mode before a first time point.

[0011] In a fifth aspect, a measurement apparatus is provided, which is configured to perform the steps of the method according to the first aspect, or implement the steps of the method according to the second aspect.

[0012] In a sixth aspect, a terminal is provided, which comprises a processor and a memory, the memory storing programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement the steps of the method according to the first aspect.

[0013] In a seventh aspect, a terminal is provided, which comprises a processor and a communication interface, wherein the processor is configured to receive a first SSB based on first information, and perform a first operation; the first operation comprises at least one of measurement and measurement reporting; the first information is related information of the first SSB on a first cell; the first SSB comprises an on-demand SSB, or comprises an on-demand SSB and an always-present SSB; the first information comprises at least one of: information triggering transmission of the first SSB; information triggering the terminal to perform measurement based on the first SSB; information triggering the terminal to perform measurement reporting based on the first SSB; a transmission pattern; a transmission mode before a first time point.

[0014] In an eighth aspect, a network-side device is provided, which comprises a processor and a memory, the memory storing programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement the steps of the method according to the second aspect.

[0015] In a ninth aspect, a network-side device is provided, which comprises a processor and a communication interface, wherein the communication interface is configured to send first information to a terminal; the first information is related information of a first SSB on a first cell; the first SSB comprises an on-demand SSB, or comprises an on-demand SSB and an always-present SSB; the first information comprises at least one of: information triggering transmission of the first SSB; information triggering the terminal to perform measurement based on the first SSB; information triggering the terminal to perform measurement reporting based on the first SSB; a transmission pattern; a transmission mode before a first time point.

[0016] In a tenth aspect, a readable storage medium is provided, which stores programs or instructions, and the programs or instructions, when executed by a processor, implement the steps of the method according to the first aspect, or implement the steps of the method according to the second aspect.

[0017] In an eleventh aspect, a wireless communication system is provided, which comprises a terminal and a network-side device, the terminal is configured to implement the steps of the method according to the first aspect, and the network-side device is configured to implement the steps of the method according to the second aspect.

[0018] In a twelfth aspect, a chip is provided, which comprises a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run programs or instructions, implement the method according to the first aspect, or implement the method according to the second aspect.

[0019] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium, and is executed by at least one processor to implement the steps of the method according to the first aspect, or to implement the steps of the method according to the second aspect.

[0020] In the embodiments of the present application, the terminal can receive the first SSB based on the first information, and perform the first operation; wherein the first operation includes at least one of measurement and measurement reporting; the first information is related information of the first SSB on the first cell; the first SSB includes an on-demand SSB, or includes an on-demand SSB and an always-present SSB; the first information includes at least one of the following: information triggering transmission of the first SSB; information triggering the terminal to perform measurement based on the first SSB; information triggering the terminal to perform measurement reporting based on the first SSB; transmission pattern; transmission mode before the first time. Through the scheme, since the terminal can receive the on-demand SSB, or the on-demand SSB and the always-present SSB based on the first information after receiving the first information, and perform at least one of measurement and measurement reporting, when performing measurement or measurement reporting, at least the on-demand SSB can be used, so that the SSB does not need to be transmitted all the time, and thus the network energy consumption when performing measurement or measurement reporting can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application can be applied;

[0022] FIG. 2 is a flowchart of a measurement method according to an embodiment of the present application;

[0023] FIG. 3 is a format diagram of a MAC CE according to an embodiment of the present application;

[0024] FIG. 4 is a format diagram of a MAC CE according to an embodiment of the present application;

[0025] FIG. 5 is a format diagram of a MAC CE according to an embodiment of the present application;

[0026] FIG. 6 is a format diagram of a MAC CE according to an embodiment of the present application;

[0027] FIG. 7 is a flowchart of another measurement method according to an embodiment of the present application;

[0028] FIG. 8 is a structural diagram of a measurement apparatus according to an embodiment of the present application;

[0029] FIG. 9 is a structural diagram of another measurement apparatus according to an embodiment of the present application;

[0030] FIG. 10 is a schematic diagram of a communication device according to an embodiment of the present application;

[0031] FIG. 11 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present application;

[0032] FIG. 12 is a schematic diagram of a hardware structure of a network-side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0034] The terms "first", "second", and the like in the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second" are generally a category and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in the present application means at least one of the connected objects. For example, the protection scope of "A or B" at least covers three schemes, namely, scheme one: including A and not including B; scheme two: including B and not including A; scheme three: including A and including B. In addition, the terms "A and / or B", "at least one of A and B", "at least one of A or B" also at least cover the above three schemes, respectively. The character " / " generally represents that the objects before and after are in an "or" relationship.

[0035] The term "indication" in the present application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). The direct indication can be understood as that the sender explicitly informs the receiver of specific information, operations to be performed or requested results, etc. in the indication sent by the sender. The indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or judges and determines the operations to be performed or the requested results according to the judgment result.

[0036] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems. th

[0037] ​FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothes, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. The access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmit / receive point (TRP), or some other suitable terminology in the art, and is not limited to a particular technical terminology, provided that the same technical effect is achieved. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0038] The core network device can also be referred to as a core network node, a core network function, or a core network network element, etc., which includes but is not limited to at least one of the following: a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), a location management function (LMF), a gateway mobile location center (GMLC), a network data analytics function (NWDAF), etc. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited. If the name of the core network device mentioned in the embodiments of the present application changes in the subsequent protocol version (for example, 6G), it is also within the protection scope of the present application.

[0039] Optionally, the core network device can be implemented by one or more function modules in one device, or can be implemented by multiple devices together, and the embodiments of the present application do not make a specific limitation. It can be understood that the above function modules can be network elements in a hardware device, can be software function modules running on a special hardware, or can be virtualized function modules instantiated on a platform (for example, a cloud platform).

[0040] The measurement method, device, terminal, network side device and medium provided by the embodiments of the present application will be described in detail below in combination with the drawings, through some embodiments and application scenarios.

[0041] At present, the terminal can first perform NR-Primary Synchronization Signal (PSS) detection to obtain a part of the physical cell identity (ID), i.e., N(2)_ID, and obtain orthogonal frequency division multiplexing symbol timing and frequency synchronization; then detect a Secondary Synchronization Signal (SSS) to obtain another part of the physical cell ID, i.e., N(1)_ID, to obtain a complete physical cell ID. Then the terminal detects a Physical Broadcast Channel (PBCH) and a Demodulation Reference Signal (DMRS) for demodulating the PBCH to obtain a system frame number and an SSB index, and further obtain a radio frame timing.

[0042] Among them, the SSB period will be configured in the System Information Block (SIB) 1, which can be 5 10 2040 80 160 ms. When initially accessing, the terminal has not received the SIB1, and will search for the SSB according to the default 20 ms period. The SSB does not appear once every period, but appears several times in a half frame every period. Each of the several SSBs corresponds to a beam scanning direction, and finally each direction will have an SSB. The several SSBs are called an SSB set, and all SSBs in an SSB set are in the same half frame.

[0043] Multi-carrier can enhance network side capacity. For Pcell or PScell, the base station must send periodic SSB, and the SSB period needs to be less than or equal to 20ms to be successfully searched by the initial search terminal. For intra-band Scell, the base station can send SSB, at which time the SSB related parameters are configured when adding the Scell; or not send SSB, at which time the SSB related parameters are not configured when adding the Scell, and the terminal acquires timing through the SSB on the Pcell. For inter-band Scell, the base station must send SSB, and the SSB related parameters are configured when adding the Scell.

[0044] Most of the power consumption of the network comes from the base station, in order to save network energy, there are currently two kinds of on-demand (On Demand, OD) -SSB transmission methods, one is that there is no always-on SSB (i.e. always exist) on the cell, only OD-SSB is supported; the other is that there is always-on SSB on the cell, and OD-SSB is also supported.

[0045] Layer 1 or layer 2 triggered mobility (L1 / L2 Triggered Mobility, LTM) refers to the process of the base station receiving the L1 measurement report sent by the terminal, and based on the received L1 measurement result, sending the Cell Switch Command signaling to the terminal through the media access control (Media Access Control, MAC) control element (Control Element, CE) to realize the terminal service cell change. Among them, the base station can send multiple LTM candidate configurations to the terminal in advance through the radio resource control (Radio Resource Control, RRC) signaling, and when triggering LTM, the Cell Switch Command MAC CE sent is used to indicate the LTM candidate configuration corresponding to the target cell to be accessed. Then the terminal applies the corresponding LTM target configuration to complete the service cell change. Among them, the network side sends MAC CE based on the L1 measurement result to trigger Cell Switch, which can respond to rapid channel changes and trigger switching in time.

[0046] In the LTM process, early uplink and downlink synchronization for candidate cells is supported, thereby enabling RACH-less LTM Cell Switch to be implemented in the LTM process. Currently, two schemes, i.e., a Time Advanced (TA) acquisition scheme and a terminal-based TA measurement scheme, are supported to acquire the TA value of the LTM candidate cell in advance, for supporting RACH-less LTM Cell Switch. Early uplink and downlink synchronization is performed on the candidate cell, and RACH-less LTM Cell Switch is implemented, which can effectively reduce data interruption in the switching process. LTM supports Subsequent LTM, and therefore, when the terminal does not release the LTM candidate configuration after each LTM Cell Switch is completed, the terminal can continue to perform subsequent Cell Switch without RRC reconfiguration or resetting after mobility is performed. Supporting Subsequent LTM can effectively reduce signaling overhead.

[0047] However, there is no related solution for how to perform measurement or measurement reporting based on the OD-SSB or based on the OD-SSB and the always-on SSB, thereby causing high network energy consumption when the measurement or the measurement reporting is performed.

[0048] To solve the above problems, the embodiments of the present application provide a measurement method, device, terminal, network side equipment and medium. The measurement method provided by the embodiments of the present application can be applied to the scene of measurement or measurement reporting.

[0049] It should be noted that the measurement in the embodiments of the present application can include the process of performing automatic gain control (AGC) and synchronization by the terminal based on the SSB.

[0050] In the measurement method provided in the embodiments of the present application, the terminal can receive the first SSB and perform the first operation based on the first information, wherein the first operation includes at least one of measurement and measurement reporting; the first information is related information of the first SSB on the first cell; the first SSB includes an on-demand SSB or includes an on-demand SSB and an always-on SSB; and the first information includes at least one of the following: information triggering transmission of the first SSB; information triggering the terminal to perform measurement based on the first SSB; information triggering the terminal to perform measurement reporting based on the first SSB; a transmission pattern; and a transmission mode before the first time point. Through the scheme, since the terminal can receive the on-demand SSB or the on-demand SSB and the always-on SSB based on the first information after receiving the first information, and perform at least one of measurement and measurement reporting, the network energy consumption during measurement or measurement reporting can be reduced by performing measurement or measurement reporting based on at least the on-demand SSB without always transmitting the SSB.

[0051] It should be noted that the time domain unit in the embodiments of the present application can be one or more symbols, slots, radio subframes, radio frames, milliseconds, seconds, or any time domain unit, which can be determined according to actual needs, and the embodiments of the present application are not limited.

[0052] It should also be noted that receiving the first SSB and performing measurement in the embodiments of the present application can be considered as simultaneous, without a sequence.

[0053] The embodiments of the present application provide a measurement method, and FIG. 2 shows a flowchart of the measurement method provided in the embodiments of the present application. As shown in FIG. 2, the measurement method provided in the embodiments of the present application can include the following step 201.

[0054] Step 201: The terminal receives the first SSB and performs the first operation based on the first information.

[0055] The first operation includes at least one of measurement and measurement reporting; the first information is related information of the first SSB on the first cell; the first SSB includes an on-demand SSB or includes an on-demand SSB (OD-SSB) and an always-on SSB (always-on SSB); and the first information includes at least one of the following:

[0056] Information triggering transmission of the first SSB;

[0057] Information triggering the terminal to perform measurement based on the first SSB;

[0058] Information triggering the terminal to perform measurement reporting based on the first SSB;

[0059] Transmission pattern;

[0060] transmission manner before the first time point.

[0061] Optionally, in the embodiments of the present application, the transmission pattern can include at least one of the following: candidate transmission position, transmission switch state, transmission start time point, transmission end time point, transmission time window, transmission period, transmission quantity, index of the first SSB, transmission power, frequency domain position, and subcarrier spacing.

[0062] Optionally, in the embodiments of the present application, the transmission quantity can be the transmission quantity of an SSB burst or the number of transmission periods.

[0063] Optionally, in the embodiments of the present application, the index of the first SSB can be the index of the first SSB, or the index of the first SSB can indicate which SSBs in an SSB burst will be transmitted, for example, indicated by the ssb-positions-in-burst parameter.

[0064] In the embodiments of the present application, since the transmission pattern can include at least one of the candidate transmission position, the transmission switch state, the transmission start time point, the transmission end time point, the transmission time window, the transmission period, the transmission quantity, the index of the first SSB, the transmission power, the frequency domain position, and the subcarrier spacing, when the first information includes the transmission pattern, the terminal can receive the first SSB and perform the first operation based on different transmission patterns, thereby improving the flexibility of measurement or measurement reporting.

[0065] Optionally, in the embodiments of the present application, the transmission manner before the first time point can be periodic transmission. That is, after the first SSB starts to be transmitted, it is periodically transmitted to the first time point; for example, periodically transmitted from the transmission start time point indicated in the first information to the first time point, at which time the first time point can not need to be indicated in the first information, that is, this behavior is pre-agreed, such as protocol predefinition.

[0066] Optionally, in the embodiments of the present application, when periodic transmission is performed before the first time point, the L1 reporting resource of the LTM can be a periodic reporting resource, a semi-static reporting resource, or a non-periodic reporting resource.

[0067] Optionally, in the embodiments of the present application, the first time point can include any of the following:

[0068] the time point at which the terminal receives the LTM cell switching command;

[0069] the time point at which the network side device sends the LTM cell switching command;

[0070] the time point at which the terminal completes the LTM cell switching;

[0071] The first time point of deactivation of the transmission configuration indication (TCI) state associated with the first cell. Optionally, in the embodiments of the present application, the first cell is not an LTM target cell, i.e., the first cell is not selected as an LTM target cell. When the terminal receives the LTM cell switching command, the on-demand SSB on the first cell is no longer transmitted, and the terminal no longer receives the on-demand SSB on the first cell.

[0072] Optionally, in the embodiments of the present application, when the TCI state associated with the first cell is deactivated, the entire on-demand SSB burst stops transmitting, or only the index of the associated on-demand SSB stops transmitting.

[0073] In the embodiments of the present application, since the first time point can be the time point at which the terminal receives the LTM cell switching command, or the time point at which the network side device sends the LTM cell switching command, or the time point at which the terminal completes the LTM cell switching, or the time point of deactivation of the TCI state associated with the first cell, when the first information includes the transmission mode before the first time point, the terminal can receive the first SSB and perform the first operation based on the transmission mode before different time points, thereby improving the flexibility of measurement or measurement reporting.

[0074] Optionally, in the embodiments of the present application, the on-demand SSB can be triggered by the network side device or triggered by the terminal.

[0075] Optionally, in the embodiments of the present application, the first cell can be an LTM candidate cell or a cell indicated in the LTM candidate configuration.

[0076] In the embodiments of the present application, since the first cell can be an LTM candidate cell or a cell indicated in the LTM candidate configuration, the terminal can receive the first SSB and perform the first operation based on the related information of the first SSB on different cells, thereby improving the flexibility of measurement or measurement reporting.

[0077] The transmission of the OD-SSB on the first cell is described below.

[0078] For example, assuming that the first cell is an SCell, then:

[0079] Case 1: Only OD-SSB is configured on the SCell

[0080] When the network side device activates the OD-SSB on an Scell, the network side device can configure it as an LTM candidate cell, specifically:

[0081] 1、After the Scell is configured as LTM candidate cell, the terminal considers that the OD-SSB on the Scell will be sent until the LTM cell switching command is received; it can be understood that the deactivation time of the OD-SSB is overridden, and the other parts remain the same, because the sending time of the OD-SSB on the Scell can be short.

[0082] 2、After the Scell is configured as LTM candidate cell, if there is no new OD-SSB configuration in the LTM configuration, the terminal executes the LTM procedure according to the existing OD-SSB configuration, such as early DL sync / early UL sync / L1 measurement / L1 measurement report.

[0083] It can be understood that whether the terminal can execute the LTM procedure based on the OD-SSB in this case depends on whether the OD-SSB is triggered on the Scell and the OD-SSB sending range indicated by the related signaling. That is, the LTM related signaling cannot trigger, activate or deactivate the OD-SSB sending.

[0084] 2.1、Specifically, the terminal executes the LTM procedure according to the OD-SSB sent in the system, such as the OD-SSB sending before the Scell is activated, or the OD-SSB sending triggered for the Scell activation, or the OD-SSB sending after the Scell is activated.

[0085] 2.2、Optionally, the L1 measurement report reported by the terminal needs to be based on the measurement result obtained by the OD-SSB within a time T before the reporting resource or N candidate positions.

[0086] 2.3、Optionally, the OD-SSB needs to be measurable within a time T before or when the terminal reports the L1 measurement report.

[0087] 2.4、Optionally, only when the terminal reports the L1 measurement result based on the OD-SSB, the network side device or the terminal can regard it as the LTM target cell or the low priority LTM target cell, unless the same L1 measurement result is obtained on other LTM candidate cells.

[0088] 3、After the Scell is configured as the LTM candidate cell, the terminal performs an LTM procedure and Scell L3 / L1 measurement according to the OD-SSB configuration in the LTM configuration; it can be understood that the LTM signaling can override the OD-SSB configuration in the Scell configuration; or the LTM signaling can extend the OD-SSB that has been sent, so that it can continue to be sent to serve the LTM procedure of the terminal, instead of stopping sending according to the deactivation time indicated in the signaling or a predefined deactivation time.

[0089] 3.1、Optionally, the OD-SSB period configuration in the LTM configuration cannot be greater than the OD-SSB period configuration in the Scell configuration.

[0090] Case 2: both always-on SSB and OD-SSB are configured on one cell

[0091] The terminal can perform an LTM procedure based on the configured SSB type of the LTM, specifically:

[0092] A, the LTM only configures OD-SSB

[0093] A1、Optionally, the specific method in case 1;

[0094] A2、Optionally, the terminal can perform an LTM procedure based on the always-on SSB configured on the Scell and the activated OD-SSB.

[0095] B, the LTM only configures always-on SSB

[0096] B1、The terminal can perform an LTM procedure based on the activated OD-SSB to speed up the DL sync, UL sync, L1 measurement and reporting processes in the LTM procedure. It can be understood that the transmission period of the always-on SSB may be longer at this time, and the terminal can use the OD-SSB with a shorter period to perform the above processes, thereby reducing the related time delay.

[0097] C, the LTM configures both OD-SSB and always-on SSB

[0098] C1、The terminal can perform an LTM procedure based on the two SSBs, which can be implemented by the terminal, or can perform the specific LTM procedure according to the SSB type indicated in the LTM signaling.

[0099] Optionally, in the embodiments of the present application, the first information can be indicated by the first signaling.

[0100] The first signaling includes at least one of the following: LTM configuration signaling, candidate cell TCI state activation or deactivation MAC CE signaling, physical downlink control channel (PDCCH) command, layer 1 measurement report triggering signaling, layer 3 measurement report triggering signaling, secondary cell activation or deactivation signaling, and first SSB transmission activation or deactivation signaling.

[0101] In the embodiments of the present application, the first information can be indicated by different signaling, and part of the information can be pre-defined by a protocol or pre-configured by a network side, so that the flexibility of indicating the first information can be improved, and the signaling structure can be optimized.

[0102] Optionally, in the embodiments of the present application, the LTM configuration signaling carries parameters such as candidate transmission position, transmission power, frequency domain position, and transmission period; and the candidate cell TCI state activation or deactivation MAC CE signaling, the PDCCH command, the first SSB transmission activation or deactivation signaling, or other first signaling carries activation information of the first SSB, and the activation information can further carry parameters such as transmission period and transmission quantity.

[0103] Optionally, in the embodiments of the present application, the secondary cell configuration signaling carries parameters such as candidate transmission position, transmission power, frequency domain position, and transmission period; and the candidate cell TCI state activation or deactivation MAC CE signaling or other first signaling carries activation information of the first SSB, and the activation information can further carry parameters such as transmission period and transmission quantity.

[0104] Optionally, in the embodiments of the present application, the LTM configuration signaling can carry LTM configuration information.

[0105] The LTM configuration information includes at least one of the following:

[0106] The configuration information of the first SSB, and the configuration information of the first SSB includes a transmission pattern of the first SSB;

[0107] First indication information, and the first indication information is used to indicate a type of SSB transmitted by the first cell.

[0108] Optionally, in the embodiments of the present application, the type of SSB can be an on-demand SSB or an always-present SSB.

[0109] Optionally, in the embodiments of the present application, the type of SSB can be determined by different signaling names or specific SSB types.

[0110] Optionally, in the embodiments of the present application, different behaviors corresponding to different SSB types are that if the SSB is a SSB sent on demand, it is considered that the SSB is not sent immediately after being configured, but needs the trigger of the first signaling.

[0111] Optionally, in the embodiments of the present application, if the first indication information indicates ltm-SSB-config, it is considered that the type of the SSB transmitted on the first cell is always-on SSB; if the first indication information indicates ltm-ODSSB-config, it is considered that the type of the SSB transmitted on the first cell is SSB sent on demand; if both are indicated by the first indication information, it is considered that LTM needs to be performed or can be performed based on the two types of SSBs.

[0112] Optionally, in the embodiments of the present application, when OD-SSB and always-on SSB exist at the same time and are configured in LTM-CSI-Resourceconfig, before the OD SSB is activated, the SSBRI (resource indicator) is encoded according to the number of always-on SSBs; after activation, it is encoded according to the number of all RSs in the resource set, so as to reduce the reporting overhead.

[0113] Optionally, in the embodiments of the present application, if the first indication information indicates SSB-index, it is considered that the type of the SSB transmitted on the first cell is always-on SSB; if the first indication information indicates ODSSB-index, it is considered that the type of the SSB transmitted on the first cell is SSB sent on demand.

[0114] Optionally, in the embodiments of the present application, if the first indication information indicates NCD-SSB, it is considered that the type of the SSB transmitted on the first cell is SSB sent on demand.

[0115] Optionally, in the embodiments of the present application, after the terminal receives the LTM configuration information, it is considered that the first SSB is immediately started to be transmitted, at this time, the first SSB can be received based on the first information. That is, the LTM configuration is a trigger command of the first SSB.

[0116] Optionally, in the embodiments of the present application, the PDCCH command can include second indication information, and the second indication information indicates the first SSB.

[0117] Optionally, in the embodiments of the present application, when the terminal receives the PDCCH command and the second indication information indicates the first SSB, the terminal can determine to initiate a random access channel transmission opportunity based on the first SSB.

[0118] Optionally, in embodiments of the present application, the first SSB transmission activation or deactivation signaling can include third indication information, which is used to indicate any of the following: start sending the first SSB, continue sending the first SSB, and end sending the first SSB.

[0119] Optionally, in embodiments of the present application, the terminal can receive the first SSB according to the sending of the first SSB indicated by the third indication information, and then perform uplink synchronization, downlink synchronization and L1 / L3 measurement.

[0120] Optionally, in embodiments of the present application, the first signaling is at least one of the following: layer 1 measurement report triggering signaling and layer 3 measurement report triggering signaling. For example, the step 201 can be implemented by the following step 201a.

[0121] Step 201a: The terminal receives the first SSB before the reporting resource of the first measurement report according to the first information, and performs a first operation.

[0122] The first measurement report includes at least one of the following: layer 1 measurement report and layer 3 measurement report.

[0123] Optionally, in embodiments of the present application, before the reporting resource of the first measurement report, it can include any of the following:

[0124] The time window before the reporting resource of the first measurement report;

[0125] Before the reporting resource of the first measurement report, and no earlier than the first time;

[0126] Before the reporting resource of the first measurement report, and no later than the second time;

[0127] N candidate positions before the reporting resource of the first measurement report, N being a positive integer;

[0128] M candidate positions before the first processing time before the reporting resource of the first measurement report, M being a positive integer.

[0129] Optionally, in embodiments of the present application, the first time can be preconfigured or agreed by protocol.

[0130] Optionally, in embodiments of the present application, the second time can be preconfigured or agreed by protocol.

[0131] For example, the trigger indication signaling of the first SSB is signaling triggering the terminal to perform semi-static measurement reporting or aperiodic measurement reporting, or is sent at the same time.

[0132] In the embodiments of the present application, the terminal can receive the first SSB at different time before the reporting resource of the first measurement report according to at least one of the layer 1 measurement report triggering signaling and the layer 3 measurement report triggering signaling, and perform the first operation, instead of performing the measurement periodically after the measurement resource is configured, so that the flexibility of receiving the first SSB can be improved, and the energy consumption of the terminal can be saved.

[0133] Optionally, in the embodiments of the present application, the first signaling is the secondary cell activation or deactivation signaling. For example, the step 201 can be implemented by the following step 201b.

[0134] The step 201b comprises: receiving, by the terminal, the first SSB on the same cell according to the first information, and performing the first operation.

[0135] In the embodiments of the present application, the terminal can receive the first SSB on the same cell according to the secondary cell activation or deactivation signaling, and perform the first operation, so that the LTM related measurement or measurement report can be performed on the same cell, to implement the LTM based on the first SSB.

[0136] Optionally, in the embodiments of the present application, the first information can further comprise a second time.

[0137] The second time is a starting time of the transmission of the first SSB, and the second time comprises any one of the following:

[0138] The starting position of the time slot of the candidate SSB index 0 in the complete SSB burst or the SSB burst after the third time;

[0139] The starting position of the time slot of the first actually transmitted SSB index in the complete SSB burst or the SSB burst after the third time;

[0140] The third time comprises at least one of the processing time of the feedback information and the processing time of the first signaling.

[0141] Optionally, in the embodiments of the present application, when the terminal receives the first information, it can be considered that the first SSB starts to be transmitted from the second time.

[0142] Optionally, in the embodiments of the present application, the terminal determines the second time according to the first information, for example, the terminal determines the starting time of the transmission of the first SSB according to the candidate transmission position indicated in the first information and the activation information of the first SSB, or the terminal assumes that the first SSB starts to be transmitted from the second time.

[0143] In the embodiment of the present application, since the first information can further include the transmission starting moment of the first SSB, the terminal can learn the transmission starting moment of the first SSB and receive the first SSB based on the transmission starting moment, so as to avoid unnecessary reception and save power consumption.

[0144] Optionally, in the embodiment of the present application, when the LTM configuration does not include the related configuration of the first SSB, the terminal can determine the type and transmission information of the SSB based on the specific indication of the first signaling; wherein the specific related configuration of the first SSB can refer to the related configuration in the cell configuration directly.

[0145] In the measurement method provided in the embodiment of the present application, after the terminal receives the first information, the terminal can receive the on-demand transmitted SSB or the on-demand transmitted SSB and the always existing SSB based on the first information, and perform at least one of measurement and measurement reporting, so that when performing measurement or measurement reporting, at least the on-demand transmitted SSB can be used, so that the SSB does not need to be transmitted all the time, so that the network energy consumption when performing measurement or measurement reporting can be reduced.

[0146] Optionally, in the embodiment of the present application, the first signaling is the secondary cell activation or deactivation signaling. Illustratively, the measurement method provided in the embodiment of the present application can further include the following step 202.

[0147] Step 202: In the case of receiving the first signaling, the terminal performs a second operation.

[0148] The second operation includes any of the following:

[0149] If the first cell is an LTM candidate cell of the terminal, it is determined that the first SSB associated with the first signaling is deactivated;

[0150] If the first cell is an LTM candidate cell of the terminal, it is determined that the first SSB associated with the first signaling is not deactivated.

[0151] Optionally, in the embodiment of the present application, after receiving the first signaling, if the first cell is configured as the LTM candidate cell, the first SSB associated with the first signaling can be deactivated or not deactivated.

[0152] In the embodiment of the present application, after receiving the first signaling, if the first cell is an LTM candidate cell of the terminal, the terminal can determine that the first SSB associated with the first signaling is deactivated or not deactivated, so as to improve the flexibility of determining the activation state of the first SSB.

[0153] It can be understood that when the first cell is an LTM candidate cell of the terminal, if the deactivation signaling of the first SSB is received, but the LTM process is still continuing, the terminal can consider that the first SSB will not be deactivated, at this time the terminal only does not perform the corresponding secondary cell measurement and other behaviors. It can also be understood that if the deactivation signaling of the first SSB is received, although the LTM process is still continuing, the network indicates that the first SSB is deactivated, and thus it is considered that the first SSB will not continue to be sent, even if the first SSB is associated with some first signaling or LTM process at this time.

[0154] Optionally, in the embodiment of the application, the first signaling is the candidate cell TCI state activation or deactivation MAC CE signaling. Illustratively, the measurement method provided by the embodiment of the application can further include the following step 203.

[0155] Step 203, in the case where the first signaling indicates that the TCI state of the candidate cell is deactivated, the terminal performs a third operation.

[0156] The third operation includes any one of the following:

[0157] It is determined that the first SSB associated with the first signaling is deactivated;

[0158] If the secondary cell is being activated or has been activated, it is determined that the first SSB associated with the first signaling is not deactivated;

[0159] If the terminal is performing measurement or activation of the secondary cell by using the first SSB, it is determined that the first SSB will not be deactivated.

[0160] Optionally, in the embodiment of the application, when the first signaling indicates that the TCI state of the candidate cell is deactivated, the first SSB can be deactivated.

[0161] Optionally, in the embodiment of the application, when the first signaling indicates that the TCI state of the candidate cell is deactivated, if the secondary cell is being activated or has been activated, the first SSB associated with the first signaling can not be deactivated.

[0162] Optionally, in the embodiment of the application, when the first signaling indicates that the TCI state of the candidate cell is deactivated, if the terminal is performing measurement or activation of the secondary cell by using the first SSB, the first SSB can not be deactivated.

[0163] In the embodiment of the application, in the case where the first signaling indicates that the TCI state of the candidate cell is deactivated, the terminal can determine whether the first SSB is deactivated or not deactivated according to different conditions, so as to further improve the flexibility of determining the activation state of the first SSB.

[0164] Exemplarily, the specific method of OD-SSB activation and deactivation under LTM is exemplarily described below.

[0165] Exemplarily, since the configuration and activation of Scell are two relatively independent processes with LTM, it is considered to take some signaling in LTM as the activation indication of OD-SSB, or activate the transmission of OD-SSB in the LTM process, so that the transmission of OD-SSB is more adaptive to the LTM process, and is more conducive to the terminal to perform the LTM process, so as to achieve the purpose of reducing the handover delay.

[0166] Among them, the OD-SSB activation under the LTM process can include:

[0167] 1. The terminal receives the LTM configuration, which contains the configuration and / or activation command of OD-SSB, and considers that the OD-SSB is activated. When a certain cell is configured as the LTM candidate cell of the terminal, the terminal can measure the SSB transmitted on it.

[0168] 2. The terminal receives the PDCCH command and considers that the OD-SSB is activated.

[0169] a) Optionally, the PDCCH command carries the activation command of OD-SSB;

[0170] b) Optionally, the PDCCH command implicitly indicates that the OD-SSB indicated by it is activated.

[0171] 3. The terminal receives the Candidate cell TCI states activation (candidate cell TCI state activation) and considers that the associated OD-SSB is activated.

[0172] a) Optionally, the Candidate cell TCI states activation MAC CE carries the activation command of OD-SSB;

[0173] b) Optionally, the Candidate cell TCI states activation MAC CE implicitly indicates that the OD-SSB indicated by it or the OD-SSB associated with the indicated TCI is activated.

[0174] 4. The terminal receives the triggering signaling of L1 measurement report and considers that the OD-SSB is activated.

[0175] a) Optionally, the triggering signaling of L1 measurement report carries the activation command of OD-SSB;

[0176] b) Optionally, the triggering signaling of L1 measurement report implicitly indicates that the related OD-SSB is activated.

[0177] Whether the OD-SSB is deactivated under the LTM procedure can include:

[0178] A. When the OD-SSB is deactivated, the associated behavior is also considered to be deactivated.

[0179] For example, the cell where the OD-SSB is located is no longer an LTM candidate cell, or the TCI state associated with the OD-SSB is deactivated, or the L1 measurement or L1 measurement report associated with the OD-SSB is deactivated.

[0180] B. When the OD-SSB is deactivated, the associated behavior is considered not to be deactivated.

[0181] For example, the cell where the OD-SSB is located is still an LTM candidate cell, or the TCI state associated with the OD-SSB is still activated, or the L1 measurement or L1 measurement report associated with the OD-SSB is still activated.

[0182] Optionally, according to whether there is an always-on SSB, if there is an always-on SSB, the associated behavior is not deactivated, and if there is not, it is deactivated.

[0183] C. When the LTM related procedure is stopped, the related OD-SSB is considered to be deactivated.

[0184] For example, if the LTM candidate cell where the OD-SSB is located is not an LTM target cell, the OD-SSB on the cell is deactivated; or if the TCI state associated with the OD-SSB is deactivated, the OD-SSB is deactivated; or if the LTM related procedure is stopped, the related OD-SSB is considered not to be deactivated; or if the LTM candidate cell where the OD-SSB is located is not an LTM target cell, the OD-SSB on the cell is also not deactivated; or if the TCI state associated with the OD-SSB is deactivated, the OD-SSB is also not deactivated.

[0185] Optionally, if the cell is a Scell and is being activated or has been activated, the OD-SSB is not deactivated.

[0186] Optionally, whether to deactivate is determined according to the indication signaling of the OD-SSB, regardless of the LTM procedure.

[0187] Optionally, the measurement method provided by the embodiment of the application can further include the following step 204.

[0188] Step 204, after receiving the first signaling, the terminal requests the network side device to send the first SSB.

[0189] Optionally, in the embodiments of the present application, the terminal can send a first request message to the network side device to request the network side device to send the first SSB.

[0190] In the embodiments of the present application, after receiving the first signaling, the terminal can request the network side device to send the first SSB, so that the first SSB is retransmitted at the request of the terminal, thereby improving the flexibility of transmitting the first SSB.

[0191] Optionally, the measurement method provided by the embodiments of the present application can further include the following step 205.

[0192] Step 205, the terminal receives an LTM switching command.

[0193] The LTM switching command is used to indicate that the first cell is an LTM target cell, or that in the case that the terminal completes LTM cell switching, the transmission of SSB on the switched cell satisfies at least one of the following conditions:

[0194] The on-demand transmitted SSB stops transmission;

[0195] The on-demand transmitted SSB is transmitted according to a first period;

[0196] If the always-present SSB is a non-cell-defined SSB, the always-present SSB is deactivated or stopped transmitting;

[0197] If the always-present SSB is a cell-defined SSB, the always-present SSB is continuously transmitted or deactivated according to whether the transmission period satisfies a first condition;

[0198] The SSB is transmitted according to a first period;

[0199] If the transmission period of the SSB changes, the starting position of the changed period is a third time or a time obtained by adding an offset value to the third time; the third time includes any of the following: the transmission time of the last SSB burst in the original transmission period of the SSB, the transmission time of the LTM cell switching command, the first time unit of the physical uplink shared channel (PUSCH) carrying the LTM cell switching command, and the time when the terminal completes LTM cell switching;

[0200] The LTM cell switching command indicates at least one of the frequency domain position, the time domain starting position, and the transmission period of the SSB transmission.

[0201] Optionally, in the embodiments of the present application, when there is always-present SSB transmission on the first cell, and the transmission period of the always-present SSB meets the requirements, the on-demand transmitted SSB can stop transmission.

[0202] Optionally, in embodiments of the present application, when the SSB is periodically transmitted according to the first period, if there is signaling modification or deactivation, the transmission according to the first period can be stopped.

[0203] Optionally, in embodiments of the present application, the first period can include any of the following: the original transmission period of the SSB on the first cell, the period indicated in the LTM cell switching command, and the period indicated in the service cell configuration.

[0204] Optionally, in embodiments of the present application, when the original transmission period is greater than a first threshold or less than a second threshold, the period switching is performed again.

[0205] Optionally, in embodiments of the present application, the first threshold or the second threshold can be preconfigured or agreed upon by a protocol.

[0206] Optionally, in embodiments of the present application, the first condition can include at least one of the following:

[0207] The transmission period of the SSB on the first cell meets a threshold requirement.

[0208] The SSB defines the SSB for the cell.

[0209] Optionally, in embodiments of the present application, the threshold requirement can be preconfigured or agreed upon by a protocol.

[0210] For example, the threshold requirement can be 20 ms. If the period is 20 ms, the on-demand SSB is continued to be transmitted. If the period is not 20 ms or is greater than the first threshold, the period is converted or deactivated.

[0211] Optionally, in embodiments of the present application, when the starting position of the changed period is the time after the third time point plus an offset value, the terminal can be prevented from re-searching the SSB.

[0212] The transmission of the SSB on the switched cell is described below.

[0213] For example, if an OD-SSB is configured on a cell and the cell is selected as an LTM target cell, the OD-SSB transmission behavior on the cell needs to be considered.

[0214] Case A: Only OD-SSB is configured on a cell

[0215] 1. If the OD-SSB is an NCD-SSB

[0216] 1.1, Since CD-SSB is needed on Pcell, network side device needs to send CD-SSB according to another configuration, at this time OD-SSB can be deactivated, or continue to send according to the sending pattern indicated in OD-SSB indication signaling.

[0217] Optionally, if the terminal needs to re-search CD-SSB, at this time the sending of OD-SSB guarantees that there is SSB sending in this time period.

[0218] 1.2, Since the frequency domain position of NCD-SSB is different from that of CD-SSB, in order to avoid the terminal re-searching SSB, at least one of the frequency domain position indication (such as ARFCN number) of CD-SSB, the starting position, the sending period of LTM cell selection command is carried.

[0219] 2. If OD-SSB is CD-SSB

[0220] 2.1, OD-SSB is always periodically sent, which is equivalent to being converted to always-on SSB.

[0221] 2.2, Optionally, the sending period is unchanged.

[0222] 2.3, Optionally, the new sending period is indicated by the LTM cell switching command.

[0223] Case B: When there is always-on SSB and OD-SSB configured on a cell

[0224] 3. If OD-SSB is NCD-SSB

[0225] 3.1, OD-SSB can be deactivated, or continue to send according to the sending pattern indicated in OD-SSB indication signaling.

[0226] 3.2, If always-on SSB is CD-SSB, when the always-on SSB period is greater than a certain threshold, or not equal to 20ms, the conversion period.

[0227] 3.3, If always-on SSB is also NCD-SSB, then deactivate this always-on SSB, or send a new CD-SSB.

[0228] Optionally, at least one of the frequency domain position, starting position and sending period of the new CD-SSB is indicated by the LTM cell switching command.

[0229] 4. If OD-SSB is CD-SSB

[0230] 4.1, OD-SSB is always periodically transmitted, which is equivalent to transforming into always-on SSB.

[0231] Optionally, the transmission period is unchanged.

[0232] Optionally, the new transmission period is indicated by the LTM cell switching command.

[0233] 4.2, if always-on SSB is also CD-SSB, and the frequency domain positions are different, the network side device indicates which SSB is the CD-SSB after switching, or which SSB is deactivated.

[0234] Optionally, at least one of the frequency domain position, the starting position, and the transmission period is indicated.

[0235] In the embodiments of the present application, since the terminal can receive the above-mentioned LTM switching command, the terminal can perform LTM switching according to the information indicated by the LTM switching command, so that the accuracy of LTM switching can be improved.

[0236] In the embodiments of the present application, when the terminal transmits the OD-SSB, and the secondary cell where the OD-SSB is located is activated, since the activated cell needs a periodic SSB at this time, it is considered that the cell needs to start a periodic SSB transmission after the secondary cell is activated.

[0237] Optionally, in the embodiments of the present application, the transmission activation point or the transmission starting time of the above-mentioned periodic SSB can be the time of Scell activation, or the time when the OD-SSB transmission time indicated by the first signaling associated with the OD-SSB ends, or the time when N bursts of the OD-SSB transmission indicated by the first signaling associated with the OD-SSB end, or the time after the Scell is activated and a certain processing time is met, or the time after the OD-SSB ends and a certain processing time is met. The processing time is predefined by the protocol.

[0238] Optionally, in the embodiments of the present application, the above-mentioned periodic SSB is indicated by the Scell activation command, which can include information such as SSB period and transmission position.

[0239] Exemplarily, the network side can trigger the SSB transmission of the SCell on demand (OD-SSB SCell). Specifically, the network side can pre-configure the OD-SSB configuration of the SCell, and then the network side can trigger the OD-SSB transmission of the SCell using the MAC CE according to different requirements. For the terminal, when the OD-SSB of an SCell is triggered, the terminal starts to perform the OD-SSB-based measurement. The OD-SSB of the SCell can also be activated at the same time when the SCell is to be activated to speed up the activation of the cell. Therefore, a new MAC CE is needed to support the activation of the OD-SSB at some time and the simultaneous activation of the SCell and the OD-SSB corresponding to the SCell at some time.

[0240] For how to design the format of the new MAC CE, so that the network side can more efficiently realize the activation of the OD-SSB at some time and the simultaneous activation of the SCell and the OD-SSB corresponding to the SCell at some time, the specific scheme is as follows:

[0241] Scheme 1: The OD-SSB indication field and the SCell state indication field always appear in the MAC CE. Optionally, the OD-SSB indication fields of different SCells can be in the same byte or different bytes. Optionally, this scheme is used when the network side configures less than 8 SCells and each SCell OD-SSB field only needs 2 bits.

[0242] For example, as shown in FIG. 3, assuming that a maximum of 7 SCells are configured, 7 Ci fields and 7 OD-SSB fields are included in the MAC CE, where the Ci field is used to indicate the activation / deactivation state of the SCell identified by the SCellIndex, and the i-th OD-SSB field is used to indicate the OD-SSB of the SCell identified by the SCellIndex. Each OD-SSB indication field includes 2 bits, and the indication field takes the value 0 to indicate that the OD-SSB configuration is not activated, otherwise it indicates the index corresponding to the OD-SSB configuration to be activated for the SCell.

[0243] Scheme 2: The OD-SSB indication field always appears in the MAC CE. The 1-byte SCell state indication field or the 4-byte SCell state indication field in the MAC CE is optional, where the 1-byte SCell state indication field corresponds to the case where the network side configures a maximum of 7 SCells, and the 4-byte SCell state indication field corresponds to the case where the network side configures more than 7 SCells. Optionally, the OD-SSB indication fields of different SCells can be in the same byte or different bytes.

[0244] For example, as shown in FIG. 4, assuming that at most 31 SCells are configured, 31 OD-SSB indication fields and optional Ci fields are included in the MAC CE, where the Ci field is used to indicate the activation / deactivation status of the SCell identified by SCellIndex, and the i-th OD-SSB field is used to indicate the OD-SSB of the SCell identified by SCellIndex. Each OD-SSB indication field includes 2 bits, and the indication field takes the value of 0 to indicate that the OD-SSB configuration is not activated, otherwise it indicates the index of the OD-SSB configuration to be activated for the SCell. The 4-byte Ci field (including the status of at most 31 SCells) is optionally present, and whether it is present in the MAC CE can be inferred from the length field of the MAC header corresponding to the MAC CE (because the length of the OD-SSB field is fixed), or can be indicated by the reserved bit of the MAC CE, such as the reserved bit in the byte where the OD-SSB field is located.

[0245] Scheme 3: The OD-SSB indication field and the SCell status indication field are optionally present in the MAC CE. Optionally, a new indication field is introduced to indicate whether the i-th OD-SSB indication field is present. Optionally, the OD-SSB indication fields of different SCells can be in the same byte or different bytes.

[0246] For example, as shown in FIG. 5, assuming that at most 31 SCells are configured, 31 OD-SSB indication fields and optional Ci fields are included in the MAC CE, where the Ci field is used to indicate the activation / deactivation status of the SCell identified by SCellIndex, and the i-th OD-SSB field is used to indicate the OD-SSB of the SCell identified by SCellIndex. The Bi indication field is also included in the MAC CE to indicate whether the i-th OD-SSB indication field is present. The 4-byte Ci field (including the status of at most 31 SCells) is optionally present, and whether it is present in the MAC CE can be inferred from the length field of the MAC header corresponding to the MAC CE (because the length of the OD-SSB field is fixed), or can be indicated by the reserved bit of the MAC CE, such as the reserved bit in the byte where the OD-SSB field is located.

[0247] Scheme 4: The OD-SSB indication field and the SCell state indication field are optional in the MAC CE. Optionally, the OD-SSB field and the SCell state field of one cell are in one byte. Optionally, a new indication field is introduced to indicate whether the information of the i-th SCell, including the OD-SSB indication field and the SCell state indication, is present.

[0248] For example, as shown in FIG. 6, assuming that a maximum of 31 SCells are configured, the MAC CE includes a maximum of 31 SCell information fields, each of which includes a Ci field and an OD-SSB field, where the Ci field is used to indicate the activation / deactivation state of the SCell, and the i-th OD-SSB field is used to indicate the OD-SSB of the SCell. An Ai indication field is defined in the MAC CE to indicate whether the information field of the SCell identified by the SCellIndex is present.

[0249] In this way, the network side device can more efficiently (including more signaling saving or more flexibility) implement the activation of the OD-SSB at some moments and the simultaneous activation of the SCell and the OD-SSB corresponding to the SCell at some moments.

[0250] The embodiment of the present application provides another measurement method, and FIG. 7 shows a flowchart of the measurement method provided by the embodiment of the present application. As shown in FIG. 7, the measurement method provided by the embodiment of the present application can include the following step 701.

[0251] Step 701: The network side device sends first information to the terminal.

[0252] The first information is related information of a first SSB on a first cell; the first SSB includes an on-demand SSB or includes an on-demand SSB and an always-present SSB; and the first information includes at least one of the following:

[0253] Information triggering transmission of the first SSB;

[0254] Information triggering the terminal to perform measurement based on the first SSB;

[0255] Information triggering the terminal to perform measurement reporting based on the first SSB;

[0256] Transmission pattern;

[0257] Transmission mode before the first moment.

[0258] Optionally, in embodiments of the present application, the transmission pattern can include at least one of the following: a candidate transmission position, a transmission switch state, a transmission start time, a transmission end time, a transmission time window, a transmission period, a transmission quantity, an index of the first SSB, a transmission power, a frequency domain position, and a subcarrier spacing.

[0259] Optionally, in embodiments of the present application, the first time point can include any one of the following:

[0260] A time point at which the terminal receives the LTM cell switching command;

[0261] A time point at which the network side device sends the LTM cell switching command;

[0262] A time point at which the terminal completes the LTM cell switching;

[0263] A time point at which the TCI state associated with the first cell is deactivated.

[0264] Optionally, in embodiments of the present application, the first cell can be an LTM candidate cell or a cell indicated in an LTM candidate configuration.

[0265] Optionally, in embodiments of the present application, the first information can be indicated by first signaling.

[0266] The first signaling includes at least one of the following: LTM configuration signaling, candidate cell TCI state activation or deactivation MAC CE signaling, PDCCH command, layer 1 measurement report triggering signaling, layer 3 measurement report triggering signaling, secondary cell activation or deactivation signaling, and first SSB transmission activation or deactivation signaling.

[0267] Optionally, in embodiments of the present application, the LTM configuration signaling can carry LTM configuration information.

[0268] The LTM configuration information includes at least one of the following:

[0269] Configuration information of the first SSB, the configuration information of the first SSB including a transmission pattern of the first SSB;

[0270] First indication information, the first indication information being used to indicate a type of SSB transmitted by the first cell.

[0271] Optionally, in embodiments of the present application, the PDCCH command can include second indication information, the second indication information being used to indicate the first SSB.

[0272] Optionally, in embodiments of the present application, the first SSB transmission activation or deactivation signaling can include third indication information, the third indication information being used for indicating any of the following: start sending the first SSB, continue sending the first SSB, and end sending the first SSB.

[0273] Optionally, in embodiments of the present application, the first information can further include a second time point.

[0274] The second time point is a transmission start time point of the first SSB, and the second time point includes any of the following:

[0275] A starting position of a time slot in which a candidate SSB index 0 is located in a complete SSB burst or SSB burst after the third time;

[0276] A starting position of a time slot in which a first actually transmitted SSB index is located in a complete SSB burst or SSB burst after the third time;

[0277] The third time includes at least one of a processing time of the feedback information and a processing time of the first signaling.

[0278] In the measurement method provided in embodiments of the present application, the network side device can send the terminal the related information of the first SSB on the first cell, and the first SSB includes the SSB transmitted on demand or includes the SSB transmitted on demand and the SSB always present, so that the terminal can receive the first SSB based on the related information and perform at least one of measurement and measurement reporting, that is, the terminal can at least based on the SSB transmitted on demand when performing measurement or measurement reporting, so as to not need to always transmit the SSB, so that the network energy consumption when performing measurement or measurement reporting can be reduced.

[0279] Optionally, in embodiments of the present application, the first signaling is the secondary cell activation or deactivation signaling. Exemplarily, the measurement method provided in embodiments of the present application can further include the following step 702.

[0280] Step 702: In the case of sending the first signaling, the network side device performs a fourth operation.

[0281] The fourth operation includes any of the following:

[0282] If the first cell is an LTM candidate cell of the terminal, the first SSB associated with the first signaling is deactivated;

[0283] If the first cell is an LTM candidate cell of the terminal, the first SSB associated with the first signaling is continued to be sent.

[0284] Optionally, in embodiments of the present application, the first signaling is the candidate cell TCI state activation or deactivation MAC CE signaling. By way of example, the measurement method provided by the embodiments of the present application can further include the following step 703.

[0285] Step 703: In the case where the first signaling indicates the deactivation of the candidate cell TCI state, the network side device performs a fifth operation.

[0286] The fifth operation includes any one of the following:

[0287] deactivating the first SSB associated with the first signaling;

[0288] if the secondary cell is being activated or has been activated, continuing to transmit the first SSB associated with the first signaling;

[0289] if the terminal is performing measurement or activation of the secondary cell using the first SSB, continuing to transmit the first SSB.

[0290] Optionally, the measurement method provided by the embodiments of the present application can further include the following step 704.

[0291] Step 704: After sending the first signaling, if a first request message sent by the terminal is received, the network side device sends the first SSB to the terminal.

[0292] The first request message is used to request the network side device to send the first SSB.

[0293] Optionally, the measurement method provided by the embodiments of the present application can further include the following step 705.

[0294] Step 705: The network side device sends an LTM switching command to the terminal.

[0295] The LTM switching command is used to indicate that the first cell is an LTM target cell, or in the case where the terminal completes the LTM cell switching, the transmission of the SSB on the switched cell satisfies at least one of the following:

[0296] the on-demand transmitted SSB stops transmission;

[0297] the on-demand transmitted SSB is transmitted according to a first period;

[0298] if the always present SSB is a non-cell defined SSB, the always present SSB is deactivated or stopped;

[0299] if the always present SSB is a cell defined SSB, the always present SSB is continuously transmitted or deactivated according to whether the transmission period satisfies a first condition;

[0300] The SSB is transmitted according to a first period;

[0301] If the transmission period of the SSB changes, the starting position of the changed period is a third time or a time obtained by adding an offset value to the third time; the third time includes any of the following: a sending time of a last SSB burst in the original transmission period of the SSB, a sending time of the LTM cell switching command, a first time unit of a PUSCH carrying the LTM cell switching command, and a time when the terminal completes the LTM cell switching.

[0302] The LTM cell switching command indicates at least one of a frequency domain position, a time domain starting position, and a sending period of SSB transmission.

[0303] Optionally, in the embodiments of the present application, the first period can include any of the following: an original transmission period of the SSB on the first cell, a period indicated in the LTM cell switching command, and a period indicated in the configuration of the serving cell.

[0304] Optionally, in the embodiments of the present application, the first condition can include at least one of the following:

[0305] The transmission period of the SSB on the first cell meets a threshold requirement.

[0306] The SSB defines the SSB for the cell.

[0307] Optionally, the measurement method provided by the embodiments of the present application can further include the following step 706.

[0308] Step 706: In the case where there is no always-on SSB on the first cell, the network-side device sends an on-demand SSB at a fourth time.

[0309] The fourth time is any of the following: a time before sending the first signaling, a time when the first signaling is sent, and a time after the first signaling is sent.

[0310] Optionally, the measurement method provided by the embodiments of the present application can further include the following step 707.

[0311] Step 707: In the case where the measurement report based on the first SSB reported by the terminal is received, the network-side device configures the first cell as an LTM candidate cell of the terminal.

[0312] Other descriptions of the measurement method provided by the embodiments of the present application can refer to the related descriptions in the above terminal-side method embodiments, and will not be repeated here to avoid repetition.

[0313] The various method embodiments or various possible implementation manners in each method embodiment can be executed individually or in combination with each other without contradiction, and can be determined according to actual use requirements, and the embodiments of the present application do not limit this.

[0314] The execution subject of the measurement method provided by the embodiments of the present application can be a measurement device. The embodiments of the present application take the measurement device as an example to illustrate the measurement device provided by the embodiments of the present application.

[0315] The embodiments of the present application provide a measurement device. As an example, the measurement device can be a communication device or a component in the communication device, such as a chip. The communication device can be a terminal, a network side device, a server, etc. For example, the terminal can include but is not limited to the types of the terminal 11 listed above, the network side device can include but is not limited to the types of the network side device 12 listed above, and the embodiments of the present application do not make specific limitations.

[0316] The measurement device includes a receiving module, a sending module and a processing module. The receiving module, the sending module and the processing module can be implemented by software or hardware. When implemented by hardware, the processing module can be implemented by a processor, for example, the processor can include a general processor, a special processor, etc., such as a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligent (AI) processor, a graphics processing unit (GPU), an application specific integrated circuit (ASIC), a network processor (NP), a field programmable gate array (FPGA) or other programmable logic device, a gate circuit, a transistor, a discrete hardware component, etc. The receiving module and the sending module can be implemented by a communication interface, which can include one or more of a transceiver, a pin, a circuit, a bus, a radio frequency unit, etc.

[0317] Specifically, referring to FIG. 8, when the measurement device is a terminal or a component in the terminal, the measurement device 40 can include a processing module 41.

[0318] The processing module 41 can be configured to receive a first SSB based on first information and perform a first operation, where the first operation includes at least one of measurement and measurement reporting, the first information is related information of the first SSB on a first cell, the first SSB includes an on-demand SSB or includes an on-demand SSB and an always-present SSB, and the first information includes at least one of the following: information triggering transmission of the first SSB, information triggering the terminal to perform measurement based on the first SSB, information triggering the terminal to perform measurement reporting based on the first SSB, a transmission pattern, and a transmission mode before a first time point.

[0319] In a possible implementation, the first information can be indicated by first signaling, where the first signaling includes at least one of the following: LTM configuration signaling, candidate cell TCI state activation or deactivation MAC CE signaling, PDCCH order, layer 1 measurement report triggering signaling, layer 3 measurement report triggering signaling, secondary cell activation or deactivation signaling, and first SSB transmission activation or deactivation signaling.

[0320] In a possible implementation, the first signaling is at least one of the layer 1 measurement report triggering signaling and the layer 3 measurement report triggering signaling. Specifically, the processing module 41 can be configured to receive the first SSB before reporting of a first measurement report based on the first information, and perform the first operation, where the first measurement report includes at least one of the following: layer 1 measurement report and layer 3 measurement report.

[0321] In a possible implementation, the first signaling is the secondary cell activation or deactivation signaling. Specifically, the processing module 41 can be configured to receive the first SSB on the same cell based on the first information, and perform the first operation.

[0322] In a possible implementation, the first signaling is the secondary cell activation or deactivation signaling. Specifically, the processing module 41 can be further configured to perform a second operation when the first signaling is received, where the second operation includes any one of the following: if the first cell is an LTM candidate cell of the terminal, determining that a first SSB associated with the first signaling is deactivated; or if the first cell is an LTM candidate cell of the terminal, determining that the first SSB associated with the first signaling is not deactivated.

[0323] In a possible implementation, the first signaling is the candidate cell TCI state activation or deactivation MAC CE signaling. Exemplarily, the processing module 41 can be further configured to perform a third operation in a case where the first signaling indicates the candidate cell TCI state deactivation; and the third operation includes any one of the following: determining that a first SSB associated with the first signaling is deactivated; determining that the first SSB associated with the first signaling is not deactivated if the secondary cell is activated or has been activated; and determining that the first SSB is not deactivated if the terminal performs measurement or activation of the secondary cell by using the first SSB.

[0324] In a possible implementation, the processing module 41 can be further configured to request the network-side device to send the first SSB after receiving the first signaling.

[0325] In a possible implementation, the measurement apparatus 40 can further include a receiving module. The receiving module can be configured to receive an LTM switching command; and the LTM switching command is used to indicate that the first cell is an LTM target cell, or that, in a case where the terminal completes LTM cell switching, transmission of an SSB on a switched cell satisfies at least one of the following: a periodically transmitted SSB stops transmission; the periodically transmitted SSB is transmitted according to a first period; if a persistently existing SSB is a non-cell-defined SSB, the persistently existing SSB is deactivated or stops transmission; if the persistently existing SSB is a cell-defined SSB, the persistently existing SSB continues to be transmitted or is deactivated according to whether a transmission period satisfies a first condition; the SSB is transmitted according to the first period; if a transmission period of the SSB changes, a starting position of a changed period is a third time or a time obtained by adding an offset value to the third time; the third time includes any one of the following: a transmission time of a last SSB burst in an original transmission period of the SSB, a transmission time of the LTM cell switching command, a first time unit of a PUSCH carrying the LTM cell switching command, and a time at which the terminal completes LTM cell switching; and the LTM cell switching command indicates at least one of a frequency domain position, a time domain starting position, and a transmission period of the SSB transmission.

[0326] In the measurement apparatus provided in the embodiments of the present application, after receiving the first information, the measurement apparatus can receive the periodically transmitted SSB or the periodically transmitted SSB and the persistently existing SSB based on the first information, and perform at least one of measurement and measurement reporting, so that the measurement or the measurement reporting can be performed based at least on the periodically transmitted SSB, without transmitting the SSB all the time, thereby reducing network energy consumption when the measurement or the measurement reporting is performed.

[0327] The measurement device provided in the embodiments of the present application can implement each process of the terminal-side method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein.

[0328] Referring to FIG. 9, when the measurement device is a network-side device or a component in the network-side device, the measurement device 50 can include a sending module 51.

[0329] The sending module 51 can be configured to send first information to a terminal, where the first information is related information of a first SSB on a first cell; the first SSB includes an on-demand SSB or includes an on-demand SSB and an always-present SSB; and the first information includes at least one of the following: information triggering transmission of the first SSB; information triggering the terminal to perform measurement based on the first SSB; information triggering the terminal to perform measurement reporting based on the first SSB; a transmission pattern; and a transmission mode before a first time point.

[0330] In a possible implementation, the first information can be indicated by first signaling, where the first signaling includes at least one of the following: LTM configuration signaling, candidate cell TCI state activation or deactivation MAC CE signaling, PDCCH order, layer 1 measurement report triggering signaling, layer 3 measurement report triggering signaling, secondary cell activation or deactivation signaling, and first SSB transmission activation or deactivation signaling.

[0331] In a possible implementation, the first signaling is the secondary cell activation or deactivation signaling. The measurement device 50 can further include a processing module. The processing module can be configured to, in a case where the first signaling is sent, perform a fourth operation, where the fourth operation includes any one of the following: if the first cell is an LTM candidate cell of the terminal, deactivating a first SSB associated with the first signaling; and if the first cell is an LTM candidate cell of the terminal, continuing to send the first SSB associated with the first signaling.

[0332] In a possible implementation, the first signaling is the candidate cell TCI state activation or deactivation MAC CE signaling. The measurement device 50 can further include a processing module. The processing module can be configured to, in a case where the first signaling indicates candidate cell TCI state deactivation, perform a fifth operation, where the fifth operation includes any one of the following: deactivating a first SSB associated with the first signaling; if a secondary cell is being activated or has been activated, continuing to send the first SSB associated with the first signaling; and if the terminal is performing measurement or activation of the secondary cell by using the first SSB, continuing to send the first SSB.

[0333] In a possible implementation, the sending module 51 can also be configured to, after sending the first signaling, send the first SSB to the terminal if a first request message sent by the terminal is received, where the first request message is used to request sending of the first SSB.

[0334] In a possible implementation, the sending module 51 can also be configured to send an LTM switching command to the terminal, where the LTM switching command is used to indicate that the first cell is an LTM target cell, or that, in a case where the terminal completes LTM cell switching, transmission of an SSB on a switched cell satisfies at least one of the following conditions: a SSB that is sent on demand stops transmission; a SSB that is sent on demand is transmitted according to a first period; if the SSB that always exists is a non-cell-defined SSB, the SSB that always exists is deactivated or stopped from being sent; if the SSB that always exists is a cell-defined SSB, the SSB that always exists is continuously transmitted or is deactivated according to whether a transmission period satisfies a first condition; the SSB is transmitted according to the first period; if a transmission period of the SSB changes, a starting position of a changed period is a third time or a time obtained by adding an offset value to the third time; the third time includes any of the following: a time of transmission of a last SSB burst in an original transmission period of the SSB, a time of sending of the LTM cell switching command, a first time unit of a PUSCH that carries the LTM cell switching command, a time at which the terminal completes LTM cell switching; and the LTM cell switching command indicates at least one of a frequency domain position, a time domain starting position, and a transmission period of the SSB.

[0335] In a possible implementation, the sending module 51 can also be configured to, in a case where the SSB that always exists does not exist on the first cell, send a SSB that is sent on demand at a fourth time, where the fourth time is any of the following: a time before the first signaling is sent, a time when the first signaling is sent, or a time after the first signaling is sent.

[0336] In a possible implementation, the measurement apparatus 50 can further include a processing module. The processing module can be configured to, in a case where a measurement report based on the first SSB is reported by the terminal, configure the first cell as an LTM candidate cell of the terminal.

[0337] In the measurement apparatus provided by the embodiments of the present application, the measurement apparatus can send the terminal the related information of the first SSB on the first cell, and the first SSB includes the SSB sent on demand or the SSB sent on demand and the SSB always present, so that the terminal can receive the first SSB and perform at least one of measurement and measurement reporting based on the related information, that is, the terminal can perform measurement or measurement reporting based on at least the SSB sent on demand, without the need to always send the SSB, so that the network energy consumption in performing measurement or measurement reporting can be reduced.

[0338] The measurement apparatus provided by the embodiments of the present application can implement the various processes achieved by the network-side device method embodiments and achieve the same technical effects. To avoid repetition, the details are not described herein.

[0339] As shown in FIG. 10, the embodiments of the present application further provide a communication device 100, which includes a processor 101 and a memory 102, and the memory 102 stores programs or instructions executable on the processor 101. For example, when the communication device 100 is a terminal, the programs or instructions are executed by the processor 101 to implement the various steps of the terminal-side method embodiments and achieve the same technical effects. When the communication device 100 is a network-side device, the programs or instructions are executed by the processor 101 to implement the various steps of the network-side device method embodiments and achieve the same technical effects. To avoid repetition, the details are not described herein.

[0340] The embodiments of the present application further provide a terminal, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the steps in the terminal-side method embodiments. The terminal embodiments correspond to the terminal-side method embodiments, and each implementation process and implementation manner of the method embodiments can be applied to the terminal embodiments and achieve the same technical effects. The terminal can be the measurement apparatus shown in FIG. 8. Specifically, FIG. 11 is a schematic diagram of the hardware structure of a terminal according to an embodiment of the present application.

[0341] The terminal 1000 includes, but is not limited to, at least part of the following components: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010, etc.

[0342] Those skilled in the art can understand that the terminal 1000 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 1010 through a power management system, so that the power management system can realize the functions of managing charging, discharging and power consumption management. The terminal structure shown in FIG. 11 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than those shown, or combine certain components, or different component arrangements, which will not be described here.

[0343] It should be understood that in the embodiments of the present application, the input unit 1004 can include a graphics processor 10041 and a microphone 10042. The graphics processor 10041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1006 can include a display panel 10061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 can include two parts of a touch detection device and a touch controller. The other input devices 10072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, which will not be described here.

[0344] In the embodiments of the present application, after the radio frequency unit 1001 receives the downlink data from the network side device, it can be transmitted to the processor 1010 for processing. In addition, the radio frequency unit 1001 can send uplink data to the network side device. Generally, the radio frequency unit 1001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0345] The memory 1009 can be used to store software programs or instructions and various data. The memory 1009 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 1009 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 1009 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0346] The processor 1010 can include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 1010.

[0347] The processor 1010 can be configured to receive a first SSB based on first information, and perform a first operation; the first operation includes at least one of measurement and measurement reporting; the first information is related information of the first SSB on a first cell; the first SSB includes an on-demand SSB, or includes an on-demand SSB and an always-present SSB; the first information includes at least one of the following: information triggering transmission of the first SSB; information triggering the terminal to perform measurement based on the first SSB; information triggering the terminal to perform measurement reporting based on the first SSB; transmission pattern; transmission mode before the first time point.

[0348] In a possible implementation, the first information can be indicated by first signaling; the first signaling includes at least one of the following: LTM configuration signaling, candidate cell TCI state activation or deactivation MAC CE signaling, PDCCH order, layer 1 measurement report triggering signaling, layer 3 measurement report triggering signaling, secondary cell activation or deactivation signaling, and first SSB transmission activation or deactivation signaling.

[0349] In a possible implementation, the first signaling is at least one of the layer 1 measurement report triggering signaling and the layer 3 measurement report triggering signaling. The processor 1010 can be specifically configured to receive the first SSB before reporting of a first measurement report based on the first information, and perform the first operation; the first measurement report includes at least one of the following: layer 1 measurement report and layer 3 measurement report.

[0350] In a possible implementation, the first signaling is the secondary cell activation or deactivation signaling. The processor 1010 can be specifically configured to receive the first SSB on the same cell based on the first information, and perform the first operation.

[0351] In a possible implementation, the first signaling is the secondary cell activation or deactivation signaling. The processor 1010 can be further configured to perform a second operation when the first signaling is received; the second operation includes any one of the following: if the first cell is an LTM candidate cell of the terminal, determining that a first SSB associated with the first signaling is deactivated; if the first cell is an LTM candidate cell of the terminal, determining that the first SSB associated with the first signaling is not deactivated.

[0352] In a possible implementation, the first signaling is the candidate cell TCI state activation or deactivation MAC CE signaling. The processor 1010 can further be configured to perform a third operation in a case where the first signaling indicates that the candidate cell TCI state is deactivated, and the third operation includes any of the following: determining that a first SSB associated with the first signaling is deactivated; determining that the first SSB associated with the first signaling is not deactivated if the secondary cell is being activated or has been activated; and determining that the first SSB is not deactivated if the terminal is performing measurement or activation of the secondary cell by using the first SSB.

[0353] In a possible implementation, the processor 1010 can further be configured to request the network-side device to send the first SSB after receiving the first signaling.

[0354] In a possible implementation, the radio frequency unit 1001 can be configured to receive an LTM switching command, and the LTM switching command is used to indicate that the first cell is an LTM target cell, or that, in a case where the terminal completes LTM cell switching, the transmission of an SSB on a switched cell satisfies at least one of the following: a transmission of an on-demand SSB is stopped; the on-demand SSB is transmitted according to a first period; if the always-present SSB is a non-cell-defined SSB, the always-present SSB is deactivated or stopped; if the always-present SSB is a cell-defined SSB, the always-present SSB is continuously transmitted or deactivated according to whether a transmission period satisfies a first condition; the SSB is transmitted according to the first period; if the transmission period of the SSB changes, a starting position of a changed period is a third time or a time obtained by adding an offset value to the third time; the third time includes any of the following: a transmission time of a last SSB burst in an original transmission period of the SSB, a transmission time of the LTM cell switching command, a first time unit of a PUSCH carrying the LTM cell switching command, and a time when the terminal completes the LTM cell switching; and the LTM cell switching command indicates at least one of a frequency domain position, a time domain starting position, and a transmission period of the SSB transmission.

[0355] In the terminal provided in the embodiments of the present application, after receiving the first information, the terminal can receive the on-demand SSB or the on-demand SSB and the always-present SSB based on the first information, and perform at least one of measurement and measurement reporting, so that the measurement or measurement reporting can be performed based at least on the on-demand SSB, without always transmitting the SSB, thereby reducing the network energy consumption when the measurement or measurement reporting is performed.

[0356] It can be understood that the implementation processes of the implementation manners mentioned in the embodiments can refer to the related descriptions of the terminal-side method embodiments, and achieve the same or corresponding technical effects. To avoid repetition, details are not described herein again.

[0357] The embodiment of the present application further provides a network side device, comprising a processor and a communication interface, the communication interface and the processor are coupled, the processor is used for running programs or instructions, and the steps of the network side device method embodiment are realized. The network side device embodiment corresponds to the network side device method embodiment, each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

[0358] Specifically, the embodiment of the present application further provides a network side device, which can be the measurement device shown in FIG. 9. As shown in FIG. 12, the network side device 1100 comprises an antenna 111, a radio frequency device 112, a baseband device 113, a processor 114 and a memory 115. The antenna 111 is connected with the radio frequency device 112. In the uplink direction, the radio frequency device 112 receives information through the antenna 111, and sends the received information to the baseband device 113 for processing. In the downlink direction, the baseband device 113 processes the information to be sent, and sends it to the radio frequency device 112. The radio frequency device 112 processes the received information and sends it out through the antenna 111.

[0359] The method executed by the network side device in the above embodiment can be implemented in the baseband device 113, which comprises a baseband processor.

[0360] The baseband device 113 may, for example, comprise at least one baseband board, and a plurality of chips are arranged on the baseband board, as shown in FIG. 12. One of the chips is, for example, a baseband processor, which is connected with the memory 115 through a bus interface to call the programs in the memory 115 and execute the network device operations shown in the above method embodiment.

[0361] The network side device may, for example, further comprise a network interface 116, which is, for example, a common public radio interface (Common Public Radio Interface, CPRI).

[0362] Specifically, the network side device 1100 of the embodiment of the present application further comprises instructions or programs stored in the memory 115 and executable on the processor 114. The processor 114 calls the instructions or programs in the memory 115 to execute the method executed by the network side device, and achieves the same technical effects. To avoid repetition, details are not described herein.

[0363] The radio frequency device 112 can be configured to send first information to the terminal. The first information is related information of a first SSB on a first cell. The first SSB includes an on-demand SSB or an on-demand SSB and an always-present SSB. The first information includes at least one of the following: information triggering transmission of the first SSB, information triggering the terminal to perform measurement based on the first SSB, information triggering the terminal to perform measurement reporting based on the first SSB, a transmission pattern, and a transmission mode before a first time point.

[0364] In a possible implementation, the first information can be indicated by first signaling. The first signaling includes at least one of the following: LTM configuration signaling, candidate cell TCI state activation or deactivation MAC CE signaling, PDCCH command, layer 1 measurement report triggering signaling, layer 3 measurement report triggering signaling, secondary cell activation or deactivation signaling, and first SSB transmission activation or deactivation signaling.

[0365] In a possible implementation, the first signaling is the secondary cell activation or deactivation signaling. The processor 114 can be configured to perform a fourth operation when the first signaling is sent. The fourth operation includes any one of the following: if the first cell is an LTM candidate cell of the terminal, deactivating the first SSB associated with the first signaling; and if the first cell is an LTM candidate cell of the terminal, continuing to send the first SSB associated with the first signaling.

[0366] In a possible implementation, the first signaling is the candidate cell TCI state activation or deactivation MAC CE signaling. The processor 114 can be further configured to perform a fifth operation when the first signaling indicates candidate cell TCI state deactivation. The fifth operation includes any one of the following: deactivating the first SSB associated with the first signaling; if a secondary cell is being activated or has been activated, continuing to send the first SSB associated with the first signaling; and if the terminal is performing measurement or activation of the secondary cell using the first SSB, continuing to send the first SSB.

[0367] In a possible implementation, the radio frequency device 112 can be further configured to, after sending the first signaling, send the first SSB to the terminal if a first request message sent by the terminal is received. The first request message is used to request sending of the first SSB.

[0368] In a possible implementation, the radio frequency device 112 can also be configured to send an LTM switching command to the terminal; wherein the LTM switching command is used to indicate that the first cell is an LTM target cell, or that, in the case that the terminal completes LTM cell switching, the transmission of the SSB on the switched cell satisfies at least one of the following conditions: the transmission of the on-demand SSB is stopped; the on-demand SSB is transmitted according to a first period; if the always-present SSB is a non-cell-defined SSB, the always-present SSB is deactivated or stopped; if the always-present SSB is a cell-defined SSB, the always-present SSB is continuously transmitted or deactivated according to whether the transmission period satisfies a first condition; the SSB is transmitted according to the first period; if the transmission period of the SSB changes, the starting position of the changed period is a third time or a time obtained by adding an offset value to the third time; the third time includes any of the following: the transmission time of the last SSB burst in the original transmission period of the SSB, the transmission time of the LTM cell switching command, the first time unit of the PUSCH carrying the LTM cell switching command, and the time when the terminal completes LTM cell switching; and the LTM cell switching command indicates at least one of the following: the frequency domain position, the time domain starting position, and the transmission period of the SSB transmission.

[0369] In a possible implementation, the radio frequency device 112 can also be configured to, in the case that there is no always-present SSB on the first cell, send an on-demand SSB at a fourth time; wherein the fourth time is any of the following: a time before the sending of the first signaling, a time when the first signaling is sent, and a time after the sending of the first signaling.

[0370] In a possible implementation, the processor 114 can also be configured to, in the case that the measurement report based on the first SSB reported by the terminal is received, configure the first cell as an LTM candidate cell of the terminal.

[0371] In the network side device provided in the embodiments of the present application, since the network side device can send the terminal the related information of the first SSB on the first cell, and the first SSB includes an on-demand SSB or includes an on-demand SSB and an always-present SSB, the terminal can receive the first SSB and perform at least one of measurement and measurement reporting based on the related information, so that the terminal can at least base on the on-demand SSB when performing measurement or measurement reporting, thereby reducing the network energy consumption when performing measurement or measurement reporting.

[0372] It can be understood that the implementation process of each implementation manner mentioned in the embodiments can refer to the related description of the network side device method embodiments above, and achieve the same or corresponding technical effects. To avoid repetition, details are not described herein again.

[0373] The embodiment of the present application further provides a readable storage medium, which stores a program or instructions, and the program or instructions are executed by a processor to realize the processes of the above-mentioned measurement method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein.

[0374] The processor is the processor in the terminal in the above-mentioned embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0375] The embodiment of the present application further provides a chip, which includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run a program or instructions to realize the processes of the above-mentioned measurement method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein.

[0376] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0377] The embodiment of the present application further provides a computer program / program product, which is stored in a storage medium and is executed by at least one processor to realize the processes of the above-mentioned measurement method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein.

[0378] The embodiment of the present application further provides a communication system, which includes a terminal and a network side device. The terminal can be used to execute the steps of the terminal side method as described above, and the network side device can be used to execute the steps of the network side device method as described above.

[0379] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a", "comprising", or the like does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the methods and apparatuses of the present application can be carried out by specific hardware, by software, or by a combination of hardware and software. It is therefore, contemplated to this patent to cover any and all modifications, variations, or equivalents that fall within the scope of the present application. Accordingly, where a concept can have been illustrated in only one of the exemplary embodiments, various aspects of the concept can be modified and / or combined to produce a variety of other embodiments that are not specifically illustrated. Thus, for purposes of describing particular embodiments, reference has been made to orientations. However, it is to be understood that the teachings of this patent are not limited in their application to any one of the mentioned orientations, but are applicable to any assembly having the features currently described or hereinafter ascertained.

[0380] From the above description of the embodiments, it is apparent that the method of the above embodiments can be realized by means of a computer software product and general hardware platform, of course, it can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disc, optical disc, etc.), and includes a plurality of instructions for making the terminal or network side device execute the method described in each embodiment of the present application.

[0381] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative, but not restrictive. Those skilled in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims, and these embodiments all belong to the protection scope of the present application.

Claims

1. A measurement method, the method comprising: receiving, by a terminal, a first synchronization signal block (SSB) based on first information, and performing a first operation; wherein the first operation comprises at least one of measurement and measurement reporting; the first information is related information of the first SSB on a first cell; the first SSB comprises an on-demand SSB, or comprises an on-demand SSB and an always-present SSB; the first information comprises at least one of: information triggering transmission of the first SSB; information triggering the terminal to perform measurement based on the first SSB; information triggering the terminal to perform measurement reporting based on the first SSB; a transmission pattern; a transmission mode before a first time instant.

2. The method of claim 1, wherein, the transmission pattern comprises at least one of: a candidate transmission position, a transmission switch state, a transmission start time instant, a transmission end time instant, a transmission time window, a transmission period, a transmission number, an index of the first SSB, a transmission power, a frequency domain position, a subcarrier spacing.

3. The method of claim 1 or 2, wherein, the first time instant comprises any one of: a time instant at which the terminal receives a layer 1 or layer 2 triggered mobility (LTM) cell handover command; a time instant at which a network side device sends an LTM cell handover command; a time instant at which the terminal completes an LTM cell handover; a time instant at which a transmission configuration indication (TCI) state associated with the first cell is deactivated.

4. The method of any one of claims 1 to 3, wherein, the first cell is an LTM candidate cell, or is a cell indicated in an LTM candidate configuration.

5. The method of any one of claims 1 to 4, wherein, the first information is indicated by first signaling; wherein the first signaling comprises at least one of: LTM configuration signaling, candidate cell TCI state activation or deactivation medium access control (MAC) control element (CE) signaling, a physical downlink control channel (PDCCH) command, layer 1 measurement report triggering signaling, layer 3 measurement report triggering signaling, secondary cell activation or deactivation signaling, first SSB transmission activation or deactivation signaling.

6. The method of claim 5, wherein, the LTM configuration signaling carries LTM configuration information; wherein the LTM configuration information comprises at least one of: configuration information of the first SSB, the configuration information of the first SSB comprising a transmission pattern of the first SSB; first indication information, the first indication information being used to indicate a type of SSB transmitted on the first cell.

7. The method of claim 5 or 6, wherein, the PDCCH command comprises second indication information, the second indication information being used to indicate the first SSB.

8. The method of any one of claims 5-7, wherein, the first SSB transmission activation or deactivation signaling comprises third indication information, the third indication information being used to indicate any one of: start transmitting the first SSB, continue transmitting the first SSB, and end transmitting the first SSB.

9. The method of any one of claims 5 to 8, wherein, the first signaling is at least one of the layer 1 measurement report triggering signaling and the layer 3 measurement report triggering signaling; receiving, by a terminal, a first synchronization signal block (SSB) based on first information, and performing a first operation, comprises: receiving, by the terminal, the first SSB before reporting resources of a first measurement report based on the first information, and performing the first operation; wherein the first measurement report comprises at least one of: a layer 1 measurement report, and a layer 3 measurement report.

10. The method of claim 9, wherein, The first measurement report is reported before the reporting resource, including any of the following: The first measurement report is reported before the reporting resource within a time window; The first measurement report is reported before the reporting resource, and no earlier than the first time; The first measurement report is reported before the reporting resource, and no later than the second time; N candidate positions before the reporting resource of the first measurement report, N being a positive integer; M candidate positions before the first processing time before the reporting resource of the first measurement report, M being a positive integer.

11. The method of any one of claims 5 to 8, wherein, The first signaling is the secondary cell activation or deactivation signaling; The terminal receives a first synchronization signal block (SSB) based on the first information and performs a first operation, including: The terminal receives the first SSB on the same cell according to the first information and performs the first operation.

12. The method of any one of claims 5 to 8, wherein, The first signaling is the secondary cell activation or deactivation signaling; the method further includes: Upon receiving the first signaling, the terminal performs a second operation; The second operation includes any of the following: If the first cell is an LTM candidate cell of the terminal, it is determined that the first SSB associated with the first signaling is deactivated; If the first cell is an LTM candidate cell of the terminal, it is determined that the first SSB associated with the first signaling is not deactivated.

13. The method of any one of claims 5 to 8, wherein, The first signaling is the candidate cell TCI state activation or deactivation MAC CE signaling; the method further includes: In the case where the first signaling indicates candidate cell TCI state deactivation, the terminal performs a third operation; The third operation includes any of the following: It is determined that the first SSB associated with the first signaling is deactivated; If the secondary cell is being activated or has been activated, it is determined that the first SSB associated with the first signaling is not deactivated; If the terminal performs measurement or activation of the secondary cell using the first SSB, it is determined that the first SSB is not deactivated.

14. The method of any one of claims 5 to 13, wherein, The method further includes: After receiving the first signaling, the terminal requests the network side device to send the first SSB.

15. The method of any one of claims 1 to 14, wherein, The first information further includes a second time; The second time is the transmission start time of the first SSB, and the second time includes any of the following: The start position of the slot of the candidate SSB index 0 in the complete SSB burst or SSB burst after the third time; The start position of the slot of the first actually transmitted SSB index in the complete SSB burst or SSB burst after the third time; The third time includes at least one of the processing time of the feedback information and the processing time of the first signaling.

16. The method of any one of claims 1 to 15, wherein, The method further includes: The terminal receives an LTM switching command; The LTM switching command is used to indicate that the first cell is an LTM target cell, or in the case where the terminal completes LTM cell switching, the transmission of SSB on the switched cell satisfies at least one of the following: The on-demand transmitted SSB stops transmission; The on-demand transmitted SSB is transmitted according to the first period; If the always-present SSB is a non-cell-defined SSB, the always-present SSB is deactivated or stopped transmitting; If the always-present SSB is a cell-defining SSB, whether the transmission period meets a first condition, the always-present SSB is continuously transmitted or is deactivated; The SSB is transmitted according to a first period; If the transmission period of the SSB is changed, the starting position of the changed period is a third time or a time obtained by adding an offset value to the third time; the third time includes any one of the following: a sending time of a last SSB burst in an original transmission period of the SSB, a sending time of the LTM cell switching command, a first time unit of a physical uplink shared channel (PUSCH) carrying the LTM cell switching command, and a time when the terminal completes the LTM cell switching; The LTM cell switching command indicates at least one of a frequency domain position, a time domain starting position, and a sending period of SSB transmission.

17. The method of claim 16, wherein, The first period includes any one of the following: an original transmission period of the SSB on the first cell, a period indicated in the LTM cell switching command, and a period indicated in a configuration of a serving cell.

18. The method of claim 16 or 17, wherein, The first condition includes at least one of the following: The transmission period of the SSB on the first cell meets a threshold requirement. The SSB is a cell-defining SSB.

19. A measurement method, the method comprising: a network-side device sending first information to a terminal; wherein the first information is related information of a first SSB on a first cell; the first SSB includes an on-demand SSB or includes an on-demand SSB and an always-present SSB; and the first information includes at least one of the following: information triggering transmission of the first SSB; information triggering the terminal to perform measurement based on the first SSB; information triggering the terminal to perform measurement reporting based on the first SSB; a transmission pattern; a transmission mode before a first time.

20. The method of claim 19, wherein, The transmission pattern includes at least one of the following: a candidate transmission position, a transmission switch state, a transmission starting time, a transmission ending time, a transmission time window, a transmission period, a transmission quantity, an index of the first SSB, a transmission power, a frequency domain position, and a subcarrier spacing.

21. The method of claim 19 or 20, wherein, The first time includes any one of the following: a time when the terminal receives an LTM cell switching command; a time when the network-side device sends the LTM cell switching command; a time when the terminal completes the LTM cell switching; and a time when a TCI state associated with the first cell is deactivated.

22. The method of any one of claims 19-21, wherein, The first cell is an LTM candidate cell or a cell indicated in LTM candidate configuration.

23. The method of any one of claims 19-22, wherein, The first information is indicated by first signaling; wherein the first signaling includes at least one of the following: LTM configuration signaling, candidate cell TCI state activation or deactivation MAC CE signaling, PDCCH command, layer 1 measurement report triggering signaling, layer 3 measurement report triggering signaling, secondary cell activation or deactivation signaling, and first SSB transmission activation or deactivation signaling.

24. The method of claim 23, wherein, The LTM configuration signaling carries LTM configuration information; wherein the LTM configuration information includes at least one of the following: configuration information of the first SSB, the configuration information of the first SSB including a transmission pattern of the first SSB; and The first indication information is used to indicate a type of the SSB transmitted by the first cell.

25. The method of claim 23 or 24, wherein, The PDCCH order comprises second indication information used to indicate the first SSB.

26. The method of any one of claims 23-25, wherein, The first SSB transmission activation or deactivation signaling comprises third indication information used to indicate any of the following: start sending the first SSB, continue sending the first SSB, or end sending the first SSB.

27. The method of any one of claims 23-26, wherein, The first signaling is the secondary cell activation or deactivation signaling; the method further comprises: In the case of sending the first signaling, the network-side device performs a fourth operation; The fourth operation comprises any of the following: If the first cell is an LTM candidate cell of the terminal, the first SSB associated with the first signaling is deactivated; If the first cell is an LTM candidate cell of the terminal, the first SSB associated with the first signaling is continued to be sent.

28. The method of any one of claims 23-26, wherein, The first signaling is the candidate cell TCI state activation or deactivation MAC CE signaling; the method further comprises: In the case that the first signaling indicates candidate cell TCI state deactivation, the network-side device performs a fifth operation; The fifth operation comprises any of the following: Deactivate the first SSB associated with the first signaling; If the secondary cell is being activated or has been activated, continue to send the first SSB associated with the first signaling; If the terminal performs measurement or activation of the secondary cell by using the first SSB, continue to send the first SSB.

29. The method of any one of claims 23 to 28, wherein, The method further comprises: After sending the first signaling, if a first request message sent by the terminal is received, the network-side device sends the first SSB to the terminal; The first request message is used to request the network-side device to send the first SSB.

30. The method of any one of claims 19 to 29, wherein, The first information further comprises a second time point; The second time point is a transmission start time point of the first SSB, and the second time point comprises any of the following: A start position of a complete SSB burst or a time slot of a candidate SSB index 0 after a third time point; A start position of a time slot of a first actually transmitted SSB index in a complete SSB burst or an SSB burst after the third time point; The third time point comprises at least one of a processing time of feedback information and a processing time of the first signaling.

31. The method of any one of claims 19 to 30, wherein, The method further comprises: The network-side device sends an LTM switching command to the terminal; The LTM switching command is used to indicate that the first cell is an LTM target cell, or in the case that the terminal completes LTM cell switching, transmission of an SSB on a switched cell satisfies at least one of the following: The on-demand SSB stops transmission; The on-demand SSB is transmitted according to a first period; If the always-present SSB is a non-cell-defined SSB, the always-present SSB is deactivated or stopped from being sent; If the always-present SSB is a cell-defined SSB, the always-present SSB is continued to be transmitted or is deactivated according to whether a transmission period satisfies a first condition; The SSB is transmitted according to a first period; If the transmission period of the SSB changes, the starting position of the changed period is a third time or a time obtained by adding an offset value to the third time; the third time includes any of the following: a sending time of a last SSB burst in an original transmission period of the SSB, a sending time of the LTM cell switching command, a first time unit of a PUSCH carrying the LTM cell switching command, and a time when the terminal completes the LTM cell switching; The LTM cell switching command indicates at least one of a frequency domain position, a time domain starting position, and a sending period of SSB transmission.

32. The method of claim 31, wherein, The first period includes any of the following: an original transmission period of the SSB on the first cell, a period indicated in the LTM cell switching command, and a period indicated in a serving cell configuration.

33. The method of claim 31 or 32, wherein, The first condition includes at least one of the following: The transmission period of the SSB on the first cell meets a threshold requirement; The SSB defines the SSB for the cell.

34. The method of any one of claims 23-33, wherein, The method further includes: In the case where there is no always-present SSB on the first cell, the network side device sends an on-demand SSB at a fourth time; The fourth time is any of the following: a time before the first signaling is sent, a time when the first signaling is sent, and a time after the first signaling is sent.

35. The method of any one of claims 19 to 34, wherein, The method further includes: In the case where the measurement report based on the first SSB is reported by the terminal, the network side device configures the first cell as an LTM candidate cell of the terminal.

36. A measurement device, the device comprising a processing module; The processing module is configured to receive a first SSB based on first information and perform a first operation. wherein The first operation includes at least one of measurement and measurement reporting; the first information is related information of the first SSB on the first cell; the first SSB includes an on-demand SSB or includes an on-demand SSB and an always-present SSB; and the first information includes at least one of the following: Information triggering transmission of the first SSB; Information triggering the terminal to perform measurement based on the first SSB; Information triggering the terminal to perform measurement reporting based on the first SSB; Transmission pattern; Transmission mode before the first time.

37. The apparatus of claim 36, wherein, The first information is indicated by first signaling; The first signaling includes at least one of the following: LTM configuration signaling, candidate cell TCI state activation or deactivation MAC CE signaling, PDCCH command, layer 1 measurement report triggering signaling, layer 3 measurement report triggering signaling, secondary cell activation or deactivation signaling, and first SSB transmission activation or deactivation signaling.

38. The apparatus of claim 37, wherein, The first signaling is at least one of the layer 1 measurement report triggering signaling and the layer 3 measurement report triggering signaling. The processing module is specifically configured to receive the first SSB before a reporting resource of a first measurement report according to the first information and perform the first operation; The first measurement report includes at least one of the following: layer 1 measurement report and layer 3 measurement report.

39. The device of claim 37, wherein, The first signaling is the secondary cell activation or deactivation signaling; The processing module is specifically configured to receive the first SSB on the same cell according to the first information, and perform the first operation.

40. The apparatus of any one of claims 37-39, wherein, The first signaling is the secondary cell activation or deactivation signaling; The processing module is further configured to perform a second operation in a case where the first signaling is received; The second operation includes any one of the following: If the first cell is an LTM candidate cell of the terminal, it is determined that the first SSB associated with the first signaling is deactivated. If the first cell is an LTM candidate cell of the terminal, it is determined that the first SSB associated with the first signaling is not deactivated.

41. The apparatus of any one of claims 37-39, wherein, The first signaling is the candidate cell TCI state activation or deactivation MAC CE signaling; The processing module is further configured to perform a third operation in a case where the first signaling indicates candidate cell TCI state deactivation; The third operation includes any one of the following: It is determined that the first SSB associated with the first signaling is deactivated. If the secondary cell is being activated or has been activated, it is determined that the first SSB associated with the first signaling is not deactivated. If the terminal performs measurement or activation of the secondary cell using the first SSB, it is determined that the first SSB is not deactivated.

42. The apparatus of any one of claims 37-41, wherein, The processing module is further configured to request the network side device to send the first SSB after receiving the first signaling.

43. The apparatus of any one of claims 36-42, wherein, The apparatus further includes a receiving module; The receiving module is configured to receive an LTM handover command; The LTM handover command is used to indicate that the first cell is an LTM target cell, or in a case where the terminal completes LTM cell handover, the transmission of SSB on the switched cell satisfies at least one of the following: The on-demand transmitted SSB stops transmission; The on-demand transmitted SSB is transmitted according to a first period; If the always-present SSB is a non-cell-defined SSB, the always-present SSB is deactivated or stopped transmitting; If the always-present SSB is a cell-defined SSB, the always-present SSB is continuously transmitted or deactivated according to whether the transmission period satisfies a first condition; The SSB is transmitted according to a first period; If the transmission period of the SSB changes, the starting position of the changed period is a third time or a time after the third time plus an offset value; the third time includes any one of the following: the transmission time of the last SSB burst in the original transmission period of the SSB, the transmission time of the LTM cell handover command, the first time unit of the PUSCH carrying the LTM cell handover command, and the time when the terminal completes LTM cell handover; The LTM cell handover command indicates at least one of the following: the frequency domain position, the time domain starting position, and the transmission period of the SSB.

44. A measurement apparatus, the apparatus comprising a sending module; The sending module is configured to send first information to a terminal; wherein The first information is related information of a first SSB on a first cell; the first SSB includes an on-demand transmitted SSB, or includes an on-demand transmitted SSB and an always-present SSB; the first information includes at least one of the following: Information triggering transmission of the first SSB; information triggering the terminal to perform measurement based on the first SSB; information triggering the terminal to perform measurement report based on the first SSB; transmission pattern; transmission mode before the first time point.

45. The device of claim 44, wherein, The first information is indicated by first signaling; The first signaling includes at least one of the following: LTM configuration signaling, candidate cell TCI state activation or deactivation MAC CE signaling, PDCCH command, layer 1 measurement report triggering signaling, layer 3 measurement report triggering signaling, secondary cell activation or deactivation signaling, and first SSB transmission activation or deactivation signaling.

46. The device of claim 45, wherein, The first signaling is the secondary cell activation or deactivation signaling; and the apparatus further includes a processing module; The processing module is configured to perform a fourth operation when the first signaling is sent; The fourth operation includes any of the following: If the first cell is an LTM candidate cell of the terminal, the first SSB associated with the first signaling is deactivated; If the first cell is an LTM candidate cell of the terminal, the first SSB associated with the first signaling is continued to be sent.

47. The device of claim 45, wherein, The first signaling is the candidate cell TCI state activation or deactivation MAC CE signaling; and the apparatus further includes a processing module; The processing module is configured to perform a fifth operation when the first signaling indicates candidate cell TCI state deactivation; The fifth operation includes any of the following: Deactivate the first SSB associated with the first signaling; If the secondary cell is being activated or has been activated, continue to send the first SSB associated with the first signaling; If the terminal performs measurement or activation of the secondary cell using the first SSB, continue to send the first SSB.

48. The apparatus of any one of claims 45-47, wherein, The sending module is further configured to, after sending the first signaling, if a first request message sent by the terminal is received, send the first SSB to the terminal; The first request message is used to request sending of the first SSB.

49. The apparatus of any one of claims 44-48, wherein, The sending module is further configured to send an LTM handover command to the terminal; The LTM handover command is used to indicate that the first cell is an LTM target cell, or that, in the case that the terminal completes LTM cell handover, the transmission of SSB on the handover cell satisfies at least one of the following: The on-demand SSB stops transmission; The on-demand SSB is transmitted according to a first period; If the always-present SSB is a non-cell-defined SSB, the always-present SSB is deactivated or stopped from being sent; If the always-present SSB is a cell-defined SSB, the always-present SSB is continued to be transmitted or is deactivated according to whether the transmission period satisfies a first condition; The SSB is transmitted according to a first period; If the transmission period of the SSB changes, a starting position of the changed period is a third time, or a time obtained by adding an offset value to the third time; the third time includes any of the following: a sending time of a last SSB burst in an original transmission period of the SSB, a sending time of the LTM cell switching command, a first time unit of a PUSCH carrying the LTM cell switching command, and a time when the terminal completes the LTM cell switching. The LTM cell switching command indicates at least one of a frequency domain position, a time domain starting position, and a sending period of SSB transmission.

50. The device of any one of claims 45-49, wherein, The sending module is further configured to send an on-demand SSB at a fourth time in a case where there is no always-present SSB on the first cell. The fourth time is any of the following: a time before the first signaling is sent, a time when the first signaling is sent, and a time after the first signaling is sent.

51. The apparatus of any one of claims 44-50, wherein, The apparatus further includes a processing module. The processing module is configured to configure the first cell as an LTM candidate cell of the terminal in a case where the measurement report based on the first SSB is reported by the terminal. 52.A terminal comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement steps of the measurement method according to any of claims 1 to 18. 53.A network-side device comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement steps of the measurement method according to any of claims 19 to 35. 54.A readable storage medium, the readable storage medium storing programs or instructions, the programs or instructions being executed by a processor to implement the measurement method according to any of claims 1 to 18, or to implement steps of the measurement method according to any of claims 19 to 35.

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