Measurement method and communication device
By introducing the on-demand SSB measurement mechanism, the terminal device performs on-demand measurement of the serving cell according to the instruction information, which solves the overhead problem caused by the frequent transmission of public signals by network devices, and realizes network energy saving and real-time and accurate measurement.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Filing Date
- 2025-10-10
- Publication Date
- 2026-05-15
AI Technical Summary
In current communication systems, network devices frequently transmit public signals, resulting in significant overhead, and existing technologies struggle to effectively achieve network energy conservation.
The on-demand SSB measurement mechanism is introduced, which configures measurement information for terminal devices on the network side. The terminal devices then perform on-demand measurements of the serving cell according to the instructions, avoiding blind searches. By combining the flexible configuration of always-on SSB and on-demand SSB, efficient measurement of the serving cell can be achieved.
It reduces the power consumption of terminal devices, improves the real-time performance and accuracy of measurements, supports flexible configuration of measurement objects in network devices, and achieves network energy saving.
Smart Images

Figure CN2025126660_15052026_PF_FP_ABST
Abstract
Description
Measurement methods and communication devices
[0001] This application claims priority to Chinese Patent Application No. 202411579407.4, filed on November 6, 2024, entitled "Measuring Method and Communication Device", the entire contents of which are incorporated herein by reference. Technical Field
[0002] This application relates to the field of wireless communication, and more specifically, to a measurement method and a communication device. Background Technology
[0003] In current communication systems, network devices periodically transmit common signals (also known as always-transmitted common signals) to facilitate terminal identification and access. However, this frequent and periodic transmission of common signals results in significant overhead for network equipment. To address this, Release 19 (R19) of the 3rd Generation Partnership Project (3GPP) began researching network energy saving (NES), proposing the introduction of adaptive processing of common signals for certain cells to achieve energy savings.
[0004] The R19 NES discussion includes enhancements in three areas: on-demand SSB, on-demand SIB1, and adaptation of common signal / channel transmissions. OD-SSB primarily targets secondary cells (SCells) of connected terminal equipment configured with carrier aggregation. SCells transmit SSBs on demand for network energy conservation. Summary of the Invention
[0005] This application provides a measurement method and a communication device, which are designed to introduce on-demand SSB into the measurement mechanism and provide measurement procedures related to on-demand SSB, such as providing a procedure for measuring the serving cell of on-demand SSB.
[0006] Firstly, a measurement method is provided. This method can be applied to the terminal side; that is, it can be executed by the terminal device or by components of the terminal device (such as a chip, chip system, circuit, or communication module). This application does not limit the scope of the method. The following description mainly uses a terminal device as an example.
[0007] The method may include: receiving measurement configuration information, the measurement configuration information being used for serving cell measurement based on on-demand synchronization signal blocks (SSBs); measuring the on-demand SSB of the serving cell based on the measurement configuration information, and sending the measurement results.
[0008] Based on the above technical solution, after introducing on-demand SSB, the network side can configure measurement settings for terminal devices based on on-demand SSB, thereby facilitating the terminal devices to perform serving cell measurements based on on-demand SSB. Furthermore, always-on SSB may have a long cycle, requiring a considerable amount of time to complete measurement and reporting, while on-demand SSB can transmit data intensively. Therefore, the measurement results of on-demand SSB can be understood as real-time measurement results, which can be immediately used for network measurement and management based on the measurement results, such as carrier management.
[0009] In conjunction with the first aspect, in some implementations of the first aspect, measuring the on-demand SSB of the serving cell includes: upon receiving a first indication message, measuring the on-demand SSB of the serving cell, wherein the first indication message instructs the on-demand SSB to be sent.
[0010] Based on the above technical solution, the terminal device can determine whether to measure the on-demand SSB of the serving cell after receiving the first indication information. The first indication information indicates that the on-demand SSB is being transmitted. Therefore, the terminal device can determine the time domain location of the on-demand SSB transmission based on the first indication information and perform the on-demand SSB measurement accordingly. This avoids the power consumption caused by blindly searching for the on-demand SSB when it is not being transmitted.
[0011] In conjunction with the first aspect, in some implementations of the first aspect, measuring the on-demand SSB of the serving cell upon receiving the first instruction information includes: measuring the on-demand SSB of the serving cell after a preset time period following receiving the first instruction information.
[0012] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes any one of the following: measuring the always-on SSB of the serving cell when the first indication information is not received; or measuring the always-on SSB of the serving cell within a preset period after receiving the first indication information; or measuring the always-on SSB of the serving cell after receiving the second indication information, wherein the second indication information indicates that the on-demand SSB is not transmitted.
[0013] Based on the above technical solution, the terminal device can perform serving cell measurement based on always-on SSB without performing on-demand SSB-based measurement in any of the above situations, that is, without blindly searching on-demand SSB.
[0014] Secondly, a measurement method is provided. This method can be applied to the network side; that is, it can be executed by a network device or by a component of the network device (such as a chip, chip system, circuit, or communication module). This application does not limit the scope of the method. The following description mainly uses a network device as an example.
[0015] The method may include: sending measurement configuration information for serving cell measurement based on on-demand SSB; and receiving measurement results obtained by measuring the on-demand SSB of the serving cell.
[0016] In conjunction with either the first or the second aspect, in some implementations, the measurement configuration information includes a first serving cell measurement object associated with the serving cell, the first serving cell measurement object being used for serving cell measurement based on the on-demand SSB.
[0017] Based on the above technical solution, network devices can configure a first serving cell measurement object in the serving cell configuration for serving cell measurement based on on-demand SSB. This adopts the always-on SSB configuration method, allowing network devices to configure independent measurement objects for on-demand SSB and always-on SSB respectively, so that network devices can flexibly configure terminal devices to perform serving cell measurements based on always-on SSB and / or on-demand SSB.
[0018] In conjunction with either the first or second aspect, in some implementations, the measurement configuration information is carried in the serving cell configuration `servingCellConfig`, or the measurement configuration information is carried in the bandwidth portion downlink dedicated `BWP-DownlinkDedicated`. In other words, `servingCellConfig` configures a first serving cell measurement object for serving cell measurements based on on-demand SSB; or, `BWP-DownlinkDedicated` configures a first serving cell measurement object for serving cell measurements based on on-demand SSB.
[0019] Based on the above technical solutions, the measurement configuration information for serving cell measurements based on on-demand SSB can be carried in servingCellConfig, thus enabling per-cell on-demand SSB serving cell measurements. Alternatively, the measurement configuration information for serving cell measurements based on on-demand SSB can be carried in BWP-DownlinkDedicated, thus enabling per-BWP on-demand SSB serving cell measurements, allowing the terminal device to perform serving cell measurements without switching BWPs.
[0020] In conjunction with either the first or the second aspect, in some implementations, the servingCellConfig further includes a second serving cell measurement object associated with the serving cell, the second serving cell measurement object being used for serving cell measurement based on always-on SSB.
[0021] In conjunction with either the first or the second aspect, in some implementations, the measurement configuration information includes configuration information of a first measurement object associated with the serving cell, wherein the SSB frequency associated with the first measurement object is the frequency of the on-demand SSB.
[0022] Based on the above technical solution, network devices can additionally configure on-demand SSB frequency points in the measurement objects, and the serving cell measurement objects are associated with the measurement objects. In this way, on-demand SSB serving cell measurement can be achieved without adding new measurement objects.
[0023] In conjunction with either the first or the second aspect, in some implementations, the first serving cell measurement object is associated with a second measurement object, and the SSB frequency associated with the second measurement object is the frequency of the on-demand SSB.
[0024] In some implementations, in conjunction with either the first or second aspect, the measurement result further includes third indication information indicating that the measurement result was obtained based on the on-demand SSB measurement.
[0025] Based on the above technical solution, the terminal device can report whether the measurement result comes from on-demand SSB or always-on SSB. This helps the network device know whether the measurement result is real-time, whether it expects further measurement results to be reported, and whether it can make a timely carrier management decision. For example, always-on SSB may have a longer cycle, requiring more time to complete the measurement and reporting, while on-demand SSB can send data more frequently. Therefore, if the network device receives a measurement result from on-demand SSB, it knows it is an immediate measurement result and can be used for carrier management immediately. If the network device receives a measurement result from always-on SSB, it knows it was a measurement result generated before on-demand SSB activation, and the network device can wait to receive the on-demand SSB measurement result before making a carrier management decision. Furthermore, considering that the measurement results for the serving cell are not necessarily triggered by the measurement identifier associated with the serving cell measurement object, the terminal device can carry the obtained (available) serving cell measurement results when reporting any measurement results. That is, the measurement identifier that triggers the current measurement report may not be associated with the serving cell measurement object. Therefore, the network device cannot know whether the measurement report was triggered by always-on SSB or on-demand SSB through the measurement configuration. Therefore, the terminal device can indicate to the network device whether the measurement result comes from on-demand SSB or always-on SSB to help the network device determine whether the measurement report was triggered by always-on SSB or on-demand SSB.
[0026] In some implementations, in conjunction with either the first or second aspect, the third indication information indicates the frequency point of the on-demand SSB.
[0027] In conjunction with either the first or the second aspect, in some implementations, the measurement result is carried in a first field, which is dedicated to carrying the measurement result of the on-demand SSB.
[0028] Optionally, the first field is carried in a first signaling message, which may also include measurement results specifically designed to carry always-on SSB.
[0029] Based on the above technical solution, when the terminal device reports the measurement result, it can determine whether the measurement result comes from on-demand SSB or always-on SSB by the field carrying the measurement result.
[0030] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: receiving configuration information of the serving cell, wherein the configuration information of the serving cell includes frequency point information of the on-demand SSB.
[0031] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes: sending configuration information of the serving cell, wherein the configuration information of the serving cell includes frequency point information of the on-demand SSB. Optionally, the configuration information of the serving cell further includes frequency point information of the always-on SSB.
[0032] Thirdly, a measurement method is provided. This method can be applied to the terminal side; that is, it can be executed by the terminal device or by components of the terminal device (such as a chip, chip system, circuit, or communication module). This application does not limit the scope of the method. The following description mainly uses a terminal device as an example.
[0033] The method may include: receiving measurement configuration information, the measurement configuration information being used for serving cell measurement based on Channel State Information Reference Signal (CSI-RS); and measuring the CSI-RS of the serving cell based on the measurement configuration information, wherein the synchronization signal block associated with the CSI-RS is an on-demand synchronization signal block (SSB) or an always-on synchronization signal block (SSB).
[0034] Fourthly, a measurement method is provided. This method can be applied to the network side; that is, it can be executed by a network device or by a component of the network device (such as a chip, chip system, circuit, or communication module). This application does not limit the scope of the method. The following description mainly uses a network device as an example.
[0035] The method may include: determining measurement configuration information, the measurement configuration information being used for serving cell measurement based on Channel State Information Reference Signal (CSI-RS), wherein the synchronization signal block associated with the CSI-RS is an on-demand synchronization signal block (SSB) or an always-on synchronization signal block (SSB); and sending the measurement configuration information.
[0036] Based on the above technical solution, after introducing on-demand SSB, on-demand SSB or always-on SSB can be flexibly configured for CSI-RS associated SSB.
[0037] In conjunction with either the third or fourth aspect, in some implementations, when the CSI-RS resources (or CSI-RS resources) and the on-demand SSB are configured on the same serving cell measurement object, the SSB associated with the CSI-RS is an on-demand SSB; or, when the on-demand SSB of the serving cell is transmitted, the SSB associated with the CSI-RS is an on-demand SSB.
[0038] In conjunction with either the third or fourth aspect, in some implementations, when the CSI-RS resources (or CSI-RS resources) and the on-demand SSB are configured for different serving cell measurement objects, the SSB associated with the CSI-RS is always-on SSB; or, when the on-demand SSB of the serving cell is not sent, the SSB associated with the CSI-RS is always-on SSB.
[0039] Based on the above technical solution, the SSB of the measurement object in the same serving cell as the CSI-RS resource configuration can be identified as the associated SSB of the CSI-RS. Alternatively, it can be determined whether to identify the on-demand SSB as the associated SSB of the CSI-RS based on whether on-demand SSB transmission is currently active. The determination method is simple and does not require additional signaling overhead.
[0040] In conjunction with either the third or fourth aspect, in some implementations, the measurement configuration information includes indication information indicating that the SSB associated with the CSI-RS is an on-demand SSB or an always-on SSB.
[0041] Fifthly, a measurement method is provided. This method can be applied to the terminal side; that is, it can be executed by the terminal device or by components of the terminal device (such as a chip, chip system, circuit, or communication module). This application does not limit the scope of the method. The following description mainly uses a terminal device as an example.
[0042] The method may include: receiving measurement configuration information; the measurement configuration information is used to determine whether neighboring cell measurements are co-frequency measurements based on the measurement information of the on-demand SSB when serving cell measurements are based on the on-demand SSB. In other words, the measurement configuration information is used to determine whether neighboring cell measurements are co-frequency measurements based on a first serving cell measurement object when serving cell measurements are based on the on-demand SSB. The first serving cell measurement object can be used for serving cell measurements based on the on-demand SSB.
[0043] Based on the above technical solution, after introducing on-demand SSB, same-frequency / different-frequency measurements can be determined based on on-demand SSB. When on-demand SSB is transmitted, it will be used for serving cell measurement. Whether the terminal device needs to perform RF conversion to measure neighboring cell SSB depends on whether the neighboring cell SSB and the on-demand SSB are the same SSB frequency. Therefore, determining same-frequency / different-frequency measurements based on on-demand SSB is more accurate than determining based on always-on SSB.
[0044] In conjunction with the fifth aspect, in some implementations of the fifth aspect, when the measurement configuration information is not used for serving cell measurements based on on-demand SSB, the determination of whether neighboring cell measurements are co-frequency measurements is based on the always-transmitted synchronization signal block (always-on SSB). In other words, when the measurement configuration information is not used for serving cell measurements based on on-demand SSB, the determination of whether neighboring cell measurements are co-frequency measurements is based on a second serving cell measurement object. The second serving cell measurement object can be used for serving cell measurements based on always-on SSB.
[0045] In conjunction with the fifth aspect, in some implementations of the fifth aspect, when neighbor cell measurements are co-frequency measurements, the method further includes: if any configured BWP other than the initial bandwidth portion BWP does not contain an on-demand SSB, or if any configured BWP does not contain an on-demand SSB, then receiving indication information indicating the measurement interval.
[0046] Sixthly, a measurement method is provided. This method can be applied to the network side; that is, it can be executed by a network device or by a component of the network device (such as a chip, chip system, circuit, or communication module). This application does not limit the scope of the method. The following description mainly uses a network device as an example.
[0047] The method may include: determining whether any configuration of the BWP other than the initial bandwidth portion (BWP) contains an on-demand synchronization signal block (SSB), or determining whether any configuration of the BWP contains an on-demand SSB; and if any configuration of the BWP other than the initial BWP does not contain an on-demand SSB, or if any configuration of the BWP does not contain an on-demand SSB, sending indication information indicating a measurement interval.
[0048] For the effects not described in detail in the second to sixth aspects above, please refer to the relevant descriptions in the first aspect, which will not be repeated here.
[0049] A seventh aspect provides a communication apparatus for performing the methods of any one of the first to sixth aspects and any possible implementation thereof. Specifically, the apparatus may include units and / or modules for performing the methods of any one of the first to sixth aspects and any possible implementation thereof, such as processing units and / or communication units.
[0050] In one implementation, the device is a communication device (such as a terminal device or a network device). When the device is a communication device, the communication unit can be a transceiver or an input / output interface; the processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.
[0051] In another implementation, the device is a chip, chip system, circuit, or communication module for communication equipment (such as terminal equipment or network equipment). When the device is a chip, chip system, or circuit for communication equipment, the communication unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip, chip system, or circuit; the processing unit may be at least one processor, processing circuit, or logic circuit.
[0052] Eighthly, a communication device is provided, the device comprising: at least one processor configured to cause the device to perform any of the first to sixth aspects and any possible implementation thereof.
[0053] Optionally, the at least one processor is configured to execute computer programs or instructions to perform the methods of any one of the first to sixth aspects and any possible implementation thereof.
[0054] Optionally, the device further includes a memory for storing the computer program or instructions.
[0055] Optionally, the at least one processor is coupled to a memory for storing the computer program or instructions. The memory may be located externally to the device.
[0056] Optionally, the device also includes a communication interface through which the processor reads instructions from memory. This can be understood as the communication interface being coupled to the processor and used to input computer programs or instructions to the processor, or to output information from the processor.
[0057] Unless otherwise specified, or if the transmission and acquisition / reception operations involved do not contradict their actual function or internal logic in the relevant description, they can be understood as output, input, or other operations, or as transmission and reception operations performed by radio frequency circuits and antennas. This application does not limit them in this regard.
[0058] In one implementation, the device is a communication device (such as a terminal device or a network device).
[0059] In another implementation, the device is a chip, chip system, circuit, or communication module for communication equipment (such as terminal equipment or network equipment). Optionally, the chip is a modem chip, also known as a baseband chip, or a system-on-chip (SoC) chip containing a modem core or a system-in-package (SIP) chip.
[0060] A ninth aspect provides a computer-readable storage medium storing a computer program (e.g., program code) or instructions that, when executed on a communication device, cause the communication device to perform the methods of any one of the first to sixth aspects and any possible implementation thereof.
[0061] In a tenth aspect, a computer program product containing instructions is provided, which, when run on a computer, causes the computer to perform the methods of any one of the first to sixth aspects and any possible implementation thereof.
[0062] Eleventhly, a communication system is provided, comprising a first communication device and a second communication device. The first communication device is configured to execute the method provided in any implementation of the first aspect, and the second communication device is configured to execute the method provided in any implementation of the second aspect; or the first communication device is configured to execute the method provided in any implementation of the third aspect, and the second communication device is configured to execute the method provided in any implementation of the fourth aspect; or the first communication device is configured to execute the method provided in any implementation of the fifth aspect, and the second communication device is configured to execute the method provided in any implementation of the sixth aspect. Attached Figure Description
[0063] Figure 1 is a schematic diagram of a wireless communication system applicable to an embodiment of this application.
[0064] Figure 2 is another schematic diagram of a wireless communication system applicable to an embodiment of this application.
[0065] Figure 3 is a schematic diagram of an access network device applicable to an embodiment of this application.
[0066] Figure 4 is a schematic diagram of the relationship between measurement identifiers, measurement objects, and report configurations.
[0067] Figure 5 is a schematic diagram of a measurement method 500 provided in an embodiment of this application.
[0068] Figure 6 is a schematic diagram of a measurement method 600 provided in an embodiment of this application.
[0069] Figure 7 is a schematic diagram of a measurement method 700 provided in an embodiment of this application.
[0070] Figure 8 is a schematic diagram of a communication device 800 provided in an embodiment of this application.
[0071] Figure 9 is a schematic diagram of another communication device 900 provided in an embodiment of this application.
[0072] Figure 10 is a schematic diagram of a chip system 1000 provided in an embodiment of this application. Detailed Implementation
[0073] The technical solutions in this application will now be described with reference to the accompanying drawings.
[0074] Before introducing the scheme of this application, the following points should be noted.
[0075] (1) In this application, "instruction" can include direct instruction, indirect instruction, explicit instruction, implicit instruction, etc. When describing an instruction information as indicating A, it can be understood that the instruction information carries A, carries the identifier of A, carries B which is associated with A, carries the identifier of B which is associated with A, etc. In other words, if the receiving side of an instruction information can determine A based on the instruction information, it can be described as the instruction information indicating A, and the specific method of determination is not limited. When it is understood that the instruction information carries A, "instruction" can be replaced with "includes". In this case, a statement such as "send / receive instruction information, the instruction information indicates A" can be replaced with "send / receive A".
[0076] In this application, the information indicated by the instruction information is called the information to be instructed. In specific implementations, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is a relationship between the other information and the information to be instructed. It can also indicate only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing instruction overhead to some extent. Furthermore, the information to be instructed can be sent as a whole or divided into multiple sub-information pieces, and the sending period and / or timing of these sub-information pieces can be the same or different.
[0077] (2) In this application, the expression " / " is used to indicate that the objects before and after are in an "or" relationship; for example, A / B can mean: A or B. The expression "and / or" is used to indicate that the objects before and after are in a relationship of either "and" or "or"; for example, A and / or B can mean the following: A exists alone, B exists alone, A and B exist simultaneously, where A and B can be single or multiple. "At least one of the following" or similar expressions are used to indicate any combination of the listed items; for example, at least one of A, B and / or C can mean the following: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, B and C exist simultaneously, A and C exist simultaneously, A, B and C exist simultaneously, where A, B, and C can be single or multiple.
[0078] (3) In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include direct transmission via the air interface or indirect transmission by other units or modules via the air interface. "Receive information from YY" can be understood as the source of the information being YY, which may include direct reception from YY via the air interface or indirect reception from YY by other units or modules via the air interface. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface. In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via a bus, wiring, or interface.
[0079] (4) In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terms and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.
[0080] (5) In this application, "first," "second," and "#1," "#2," and "#A" are merely for descriptive convenience and are used to distinguish objects, and are not intended to limit the scope of the embodiments of this application. They are not used to describe the order or sequence of features. It should be understood that such described objects can be interchanged where appropriate in order to describe solutions other than those in the embodiments of this application.
[0081] (6) In this application, "predefined" can mean a standard protocol predefined, or it can mean a pre-agreed or pre-negotiated agreement between devices. Here, "protocol" can refer to a standard protocol in the field of communications, for example, it may include fourth-generation (4G) protocols. th Generation 4G network, fifth generation (5G) network th This application does not limit the scope to network protocols such as 5G (generation, 5G), New Radio (NR), 5.5G, and related protocols applied in future communication networks.
[0082] (7) In this application, the words “exemplary,” “for example,” etc., are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as an “example” in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the word “example” is intended to present the concept in a concrete manner. In the embodiments of this application, “of,” “corresponding, relevant,” and “corresponding” may sometimes be used interchangeably, and it should be noted that their intended meanings are consistent unless their distinction is emphasized.
[0083] First, let me introduce the communication system to which this application applies.
[0084] The technical solutions provided in this application can be applied to various communication systems, such as 5th generation (5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, and LTE time division duplex (TDD) systems. The technical solutions provided in this application can also be applied to future communication network systems. Furthermore, the technical solutions provided in this application can be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), and Internet of Things (IoT) communication systems. The technical solutions provided in this application can also be applied to non-terrestrial network (NTN) systems such as inter-satellite communication and satellite communication.
[0085] As an example, a satellite communication system includes a satellite base station and terminal equipment. The satellite base station provides communication services to the terminal equipment. Satellite base stations can also communicate with each other. A satellite can act as a base station or as a terminal device. Here, "satellite" can refer to drones, hot air balloons, low-Earth orbit satellites, medium-Earth orbit satellites, high-Earth orbit satellites, etc. "Satellite" can also refer to non-terrestrial base stations or non-terrestrial equipment.
[0086] As an example, V2X communication can include: vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, and vehicle-to-network (V2N) communication.
[0087] In a communication system, a device can send signals to or receive signals from another device. These signals can include information, signaling, or data. The device can also be replaced by an entity, network entity, communication equipment, communication module, node, communication node, etc. This application uses a device as an example for description.
[0088] The terminal device in this application embodiment can be a device or module that accesses the aforementioned communication system and has corresponding communication functions. The terminal device can include various devices with wireless communication capabilities, which can be used to connect people, objects, machines, etc. The terminal device can be widely applied in various scenarios, such as: cellular communication, D2D, V2X, peer-to-peer, M2M, MTC, IoT, virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, drones, robots, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery, etc. The terminal device can be a terminal in any of the above scenarios, such as an MTC terminal, an IoT terminal, etc. Terminal equipment can be user equipment (UE), terminal, fixed equipment, mobile station equipment or mobile equipment, subscriber unit, handheld device, vehicle-mounted equipment, wearable device, cellular phone, smartphone, session initiation protocol (SIP) phone, wireless data card, personal digital assistant (PDA), computer, tablet computer, laptop computer, wireless modem, handset, laptop computer, computer with wireless transceiver capability, smart book, vehicle, satellite, global positioning system (GPS) device, target tracking device, aircraft (e.g., drone, helicopter, multiple helicopters, four helicopters, or airplanes), ship, remote control device, smart home device, industrial equipment, transportation vehicle with wireless communication capability, communication module, or roadside unit with terminal function, all conforming to the 3rd generation partnership project (3GPP) standard. The device may be a wireless communication unit (RSU), or a device built into the aforementioned device (e.g., a communication module, modem, or chip in the aforementioned device), or other processing devices connected to the wireless modem.
[0089] It should be understood that in certain scenarios, a UE can also be used as a base station. For example, a UE can act as a scheduling entity, providing sidelink signaling between UEs in scenarios such as V2X, D2D, or end-to-end.
[0090] In this embodiment, the device for implementing the functions of a terminal device, i.e., the terminal device, can be the terminal device itself, or it can be any device capable of supporting the terminal device in implementing the functions, such as a chip system, chip, circuit, or communication module (i.e., a communication module that performs communication functions). This device can be installed in the terminal device. In this embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. Furthermore, the device can also be configured with program instructions for performing corresponding communication functions.
[0091] The network device in this application embodiment can be a device or module with corresponding communication functions. The network device can be a device used to communicate with terminal devices; it can also be called an access network device or a wireless access network device, such as a base station. In this application embodiment, the network device can refer to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network. A base station can broadly encompass, or be replaced by, various names including: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitter, master station, auxiliary station, multiple standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or similar, or a combination thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. A base station can also be a mobile switching center, a device that performs base station functions in D2D, V2X, and M2M communications, a network-side device in future communication networks, or a device that performs base station functions in future communication systems. A base station can support networks using the same or different access technologies. The embodiments of this application do not limit the specific technologies or device forms used in the network equipment.
[0092] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.
[0093] In some deployments, the network devices mentioned in the embodiments of this application may be devices including CU, or DU, or devices including CU and DU, or devices with control plane CU nodes (central unit-control plane (CU-CP)) and user plane CU nodes (central unit-user plane (CU-UP)) and DU nodes.
[0094] In some deployments, multiple RAN nodes collaborate to assist terminal devices in achieving wireless access, with different RAN nodes each implementing some of the base station's functions. For example, RAN nodes can be CUs, DUs, CU-CPs, CU-UPs, or radio units (RUs). CUs and DUs can be configured separately or included in the same network element, such as a BBU. RUs can be included in radio equipment or radio units, such as RRUs, AAUs, or RRHs.
[0095] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, a radio access network can also be an open radio access network (O-RAN) architecture. In an O-RAN system, CU can also be called an open CU (open CU, O-CU), DU can also be called an open DU (open DU, O-DU), CU-CP can also be called an open CU-CP (O-CU-CP), CU-UP can also be called an open CU-UP (O-CU-UP), and RU can also be called an open RU (open RU, O-RU). Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.
[0096] In this embodiment, the device for implementing the functions of a network device can be a network device itself, or a device capable of supporting the network device in implementing those functions, such as a chip system, chip, circuit, or communication module (i.e., a communication module that performs communication functions). This device can be installed within the network device. In this embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. Furthermore, the device can be configured with program instructions for performing corresponding communication functions. This embodiment only uses a network device as an example to illustrate the device for implementing the functions of a network device, and does not limit the solution of this embodiment.
[0097] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located.
[0098] The communication system applicable to the embodiments of this application is briefly described below with reference to Figure 1.
[0099] Referring to Figure 1, as an example, Figure 1 is a schematic diagram of a wireless communication system applicable to an embodiment of this application. As shown in Figure 1, the wireless communication system includes a wireless access network 100. The wireless access network 100 may be a next-generation (e.g., future or higher version) wireless access network or a traditional (e.g., 5G, 4G, 3G, or 2G) wireless access network. One or more terminal devices (120a-120j, collectively referred to as 120) may be interconnected or connected to one or more network devices (110a, 110b, collectively referred to as 110) in the wireless access network 100. Network elements in the wireless communication system are connected through interfaces (e.g., NG, Xn) or air interfaces.
[0100] When network devices and terminal devices communicate, the network device can manage one or more cells, and a cell can include at least one terminal device. A cell can be understood as an area within the wireless signal coverage range of the network device.
[0101] Figure 1 is just a schematic diagram. The wireless communication system may also include other devices, such as core network devices, wireless relay devices and / or wireless backhaul devices, which are not shown in Figure 1.
[0102] Referring to Figure 2, as an example, Figure 2 is another schematic diagram of a wireless communication system applicable to embodiments of this application. This wireless communication system may also be referred to as an ORAN system, for example. The wireless communication system may include a core network, access network equipment, and a UE. As an example, the wireless communication system may also include other components besides those shown in Figure 2; specific details are not limited in this application.
[0103] Access network equipment can communicate with the core network (CN) via a backhaul link. Access network equipment can also communicate with the UE via an air interface. Specifically, the BBU in the access network equipment communicates with the core network via a backhaul link. The RU in the access network equipment communicates with at least one UE via an air interface. The BBU communicates with at least one RU via a fronthaul link; the BBU and RU may or may not be co-located. A BBU includes at least one CU and at least one DU, and the CU and DU can communicate via at least one midhaul link.
[0104] Referring to Figure 3, as an example, Figure 3 is a schematic diagram of an access network device applicable to an embodiment of this application.
[0105] Optionally, the access network equipment includes a CU. The CU is a logical node that carries the radio resource control (RRC), service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions of the access network equipment. The CU can connect to network nodes such as the core network through interfaces, such as the E2 interface. The CU may have some core network functions. The CU (e.g., the PDCP layer and / or higher layers of the CU) connects to the DU (e.g., the radio link control (RLC) layer and lower layers of the DU) through interfaces, such as the F1 interface. Optionally, the F1 interface can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). F1AP is the application protocol of the F1 interface, defining the signaling procedures of F1 in some examples. The F1 interface supports control plane F1-C and user plane F1-U.
[0106] As an example, a CU includes CU-CP and CU-UP. CU-CP is a logical node carrying the control plane (PDCP-C) layer, which carries the RRC layer and the Packet Data Convergence Protocol layer, and is used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be access and mobility function (AMF) network elements, such as the access and mobility management function (AMF) in a 5G system. The AMF network element is responsible for mobility management in the mobile network, such as terminal device location updates, terminal device registration with the network, and terminal device handover. CU-UP is a logical node carrying the user plane (PDCP-U) layer, which carries the SDAP layer and the Packet Data Convergence Protocol layer, and is used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. These network elements in the core network, such as the user plane function (UPF) in a 5G system, are responsible for data forwarding and receiving in terminal devices. The above CU and DU configurations are merely examples. In practical applications, the functions of the CU and DU can be configured as needed. For instance, the CU or DU can be configured to have more protocol layer functions, or to have only some protocol layer processing functions. For example, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of the CU or DU can be divided according to service type or other system requirements. For example, based on latency, functions that require low latency can be placed in the DU, while functions that do not require low latency can be placed in the CU.
[0107] Optionally, the access network equipment includes a DU. As shown in Figure 3, the DU is a logical node carrying the RLC layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer, and other functions. In some examples, the DU can control at least one RU. The DU connects to the RU through interfaces, which can be fronthaul interfaces. In some examples, the Higher PHY layer includes the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation.
[0108] Optionally, the access network equipment includes an RU. As shown in Figure 3, the RU is a logical node that carries lower physical layer (PHY) and radio frequency (RF) processing. In some examples, the RU may be a 3GPP transmission reception point (TRP), a remote radio head (RRH), or other similar entities. In some examples, the Low-PHY includes PHY processing functions such as fast fourier transform (FFT), inverse fast fourier transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more UEs via a radio link.
[0109] The DU and RU may or may not be co-located. The DU and RU exchange control plane and user plane information via a fronthaul link through a lower-layer split CUS-plane (LLS-CUS) interface. The LLS-CUS may include a lower-layer split control (LLS-C) interface providing the control plane (C-Plane) and a lower-layer split user (LLS-U) interface, respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and RU. The DU and RU exchange management information via an LLS-M interface on the fronthaul link; the management plane (M-Plane) refers to non-real-time management operations between the DU and RU.
[0110] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or to implement both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.
[0111] Figures 1 to 3 above are illustrative examples, and the embodiments of this application are not limited thereto.
[0112] To facilitate understanding of the embodiments of this application, a brief explanation of the background and terminology involved in this application is provided.
[0113] 1. Synchronization signal block (SSB)
[0114] SSB, also known as synchronization signal, can comprise two parts: a synchronization signal (SS) and a physical broadcast channel block (PBCH). The SS can include a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). Therefore, the SSB can also be considered to consist of three parts: PSS, SSS, and PBCH, without limitation. For example, the SSB may also include a demodulation reference signal (DMRS) (or PBCH-DMRS) required for demodulating the PBCH. As an example, the SSB is sometimes referred to as a "physical sidelink broadcast channel (PSBCH) block" (SS / PSBCH block), which is not a limitation in this application.
[0115] As an example, SSB can be used to implement the following functions: 1) cell synchronization and acquisition of the master information block (MIB); 2) beam scanning on the network device side. A brief introduction follows.
[0116] 1) Cell Synchronization and MIB Acquisition: The PSS and SSS within the SSB can carry the Physical Cell Identifier (PCI). Terminal devices acquire the PCI by detecting the PSS and SSS. Furthermore, the PBCH within the SSB can carry the SSB index. Each SSB index corresponds to the location where the SSB was sent. Cell synchronization can be completed by detecting the SSB index and the time of receiving the SSB. Additionally, the PBCH within the SSB can carry the MIB, therefore the MIB can also be obtained based on the SSB.
[0117] 2) Network device-side beam scanning: A single SSB pattern can contain multiple SSB indices. Different SSB indices correspond to different transmit beams of the network device. The terminal device can detect SSBs and select the transmit beam corresponding to the SSB with better quality, thereby completing beam scanning. Alternatively, the terminal device can also use multiple receive beams to receive the same SSB, thus completing terminal device-side receive beam scanning.
[0118] 2. Measurement
[0119] Mobility management is a crucial component of wireless mobile communications. It refers to the collective measures taken to ensure that the communication link between network devices and terminal devices is not interrupted due to the movement of the terminal devices.
[0120] Based on the terminal device's state, mobility management can be broadly divided into two parts: idle state (or RRC_IDLE state) / inactive state (or RRC_INACTIVE state) mobility management, and connected state (or RRC_CONNECTED state) mobility management. In the idle / inactive state, mobility management primarily refers to the cell selection / reselection process. In the connected state, mobility management primarily refers to cell handover. Both cell selection / reselection and cell handover are based on measurement results. Therefore, mobility measurement is the foundation of mobility management.
[0121] As an example, measurements can be divided into two parts based on the layers involved: physical layer measurements (i.e., layer 1 (L1) measurements) and RRC layer measurements (i.e., layer 3 (L3) measurements). At the physical layer, the terminal device performs specified types of measurements on the configured measurement resources.
[0122] For SSB-based measurements, the terminal device merges the measurement results obtained from multiple SSBs with the same SSB index and PCI to obtain the beam-level layer 1 measurement result of the SSB corresponding to the SSB index of the cell corresponding to the PCI, and reports it to layer 3.
[0123] For measurements based on channel state information reference signal (CSI-RS), the terminal device merges the measurement results obtained on multiple CSI-RS resources with the same CSI-RS resource identifier and PCI to obtain the beam layer 1 measurement result of the CSI-RS resource corresponding to the CSI-RS resource identifier of the cell corresponding to the PCI, and reports it to layer 3.
[0124] The process of merging measurement results from multiple measurement resources described above can be referred to as Layer 1 filtering. The specific merging method can be implemented using terminal devices; no limitation is imposed on this.
[0125] After receiving the beam-level measurement results reported by Layer 1, Layer 3 selects or merges the Layer 1 measurement results from various beams within the same cell to derive the cell-level Layer 3 measurement results. Then, Layer 3 filtering is applied to the obtained cell-level Layer 3 measurement results. The filtered Layer 3 measurement results are used to verify whether the reporting trigger conditions are met and for the final reporting.
[0126] In addition, terminal devices may also need to report beam-level layer 3 measurement results. In this case, the terminal device can directly perform layer 3 filtering on the layer 1 measurement results of each beam, and then select the measurement results to be reported from the filtered measurement results. The specific selection method is not limited.
[0127] When the reporting trigger condition is met, the terminal device sends a measurement report to the network.
[0128] It is understood that the above measurement process is an example, and the embodiments of this application do not limit the specific measurement method.
[0129] 3. Measurement Configuration
[0130] During the measurement configuration phase, the network device sends the necessary measurement information to the terminal device via signaling. Specifically, in the connected state, the signaling sent by the network device can be RRC Reconfiguration, in which the measurement configuration (measConfig) information element contains the measurement configuration information to be sent to the terminal device.
[0131] As an example, the measurement configuration information includes the following aspects.
[0132] 1) Measurement Object (MO): This can be frequency information, such as a frequency point or frequency band. Taking a frequency point as an example, one measurement object corresponds to one frequency point. In the configuration information of the measurement object, the network device will inform the terminal device of the necessary information required to perform measurements on that frequency point. This necessary information includes, but is not limited to, the configuration of measurement resources on that frequency point, the list of cells on that frequency point, etc. In NR, for in-frequency and out-of-frequency measurements, the measurement object indicates some parameters of the reference signal to be measured, such as, but not limited to, the frequency domain position of the reference signal, the time domain position of the reference signal, and the subcarrier spacing.
[0133] In short, the measurement object can be a certain frequency point. For example, a terminal device can measure the signal quality of a cell corresponding to that frequency point.
[0134] 2) Reporting configuration (ReportConfig): In the reporting configuration, the network device informs the terminal device of the details of the specific measurements to be performed. As an example, the reporting configuration includes, but is not limited to: the type of measurement, the method of triggering the reporting, the format of the report, etc.
[0135] 3) Measurement Identity (measID): A measurement identity can be considered a combination of a measurement object and a reporting configuration. In other words, a measurement identity can associate a measurement object with a reporting configuration; that is, a measurement identity can represent its associated measurement object and reporting configuration. The combination of the measurement object and the reporting configuration determines the details of the measurement for a measurement object. Any measurement object / reporting configuration can be associated with any / many / zero reporting configurations / measurement objects that share the same radio access technology (RAT). Figure 4 shows an example illustrating the relationship between measurement identities, measurement objects, and reporting configurations.
[0136] 4) Quantity configuration: This refers to the configuration of the Layer 3 filter coefficients. Layer 3 filtering must be performed before triggering the measurement to verify whether the reporting trigger conditions are met, and before the final reporting of the measurement. The Layer 3 filter coefficients can be communicated to the terminal device through the quantity configuration.
[0137] 5) Measurement gap configuration: In some cases, such as when same-frequency / different-frequency / different-system measurements involve switching the center frequency, measurement and data transmission cannot be performed simultaneously. The network device needs to configure the measurement gap for the terminal device.
[0138] 4. Bandwidth part (BWP)
[0139] A BWP (Bandwidth Buffer) represents a continuous bandwidth resource configured by a network device for a terminal device, enabling flexible bandwidth configuration between the network device and the terminal device. Different terminal devices can be configured with different BWPs. As examples, BWPs include the following.
[0140] 1) Initial BWP: The BWP configured during the initial access phase of the terminal device; signals and channels during initial access are transmitted within the initial BWP.
[0141] 2) Dedicated BWP: A BWP configured by the terminal device in RRC connected state. A terminal device can be configured with multiple dedicated BWPs.
[0142] 3) Activate BWP: The BWP activated by the terminal device at a certain moment in the RRC connection state is one of the dedicated BWPs.
[0143] 4) Default BWP: When the terminal device is in RRC connected state, it returns to the default BWP after its BWP inactivity timer expires. This default BWP is one of the dedicated BWPs. As an example, the network device can indicate to the terminal device which dedicated BWP to use as the default BWP via RRC signaling.
[0144] As mentioned in the background, the discussion on network energy savings (NES) in R19 includes enhancements to on-demand SSBs. The current discussion concludes that it supports the following two scenarios: Scenario 1 (case 1): No always-on SSB; Case 2: Always-on SSB is present. Always-on SSB can be a periodically transmitted SSB; for example, the always-on SSB period can be set longer than the on-demand SSB period. On-demand SSB is an on-demand SSB, which can be a short-period, densely transmitted SSB. In the following description, for indirection, OD-SSB is used to represent on-demand SSB, and AO-SSB is used to represent always-on SSB.
[0145] With the introduction of OD-SSB, the measurement mechanism also needs to be improved. Specifically, if the measurement mechanism of AO-SSB is directly adopted, some aspects may need to be redefined or reconsidered, meaning that directly adopting the measurement mechanism of AO-SSB is not appropriate. Therefore, the embodiments of this application mainly consider the improvement of the measurement mechanism after the introduction of OD-SSB from the following aspects.
[0146] Aspect 1: Serving Cell MO (Measurement Object)
[0147] Because the signal quality of the serving cell is crucial for mobility management, the NR system mandates that whenever a UE is configured with a measurement configuration (measConfig), the UE must also have a serving cell with a servingCellMO configured. For example, the measurement configuration assigns a measurement object identifier (MO id) to each measurement object. The serving cell configuration uses the MO id indicated by the servingCellMO field to identify which measurement object is the serving cell's servingCellMO. Additionally, Release 17 introduced per-BWP servingCellMO configuration, which is configured within the serving cell's BWP configuration.
[0148] However, according to the current protocol, each serving cell can be configured with at most one servingCellMO, or one servingCellMO per BWP. Furthermore, the corresponding servingCellMO (i.e., the MeasObjectNR corresponding to the MO id indicated by the servingCellMO) can only be configured with one SSB frequency point. This creates a problem: it is impossible to configure both AO-SSB and OD-SSB for the serving cell simultaneously.
[0149] In short, one MO corresponds to one frequency point, and a serving cell can be configured with a maximum of one servingCellMO. It is not possible to configure AO-SSB and OD-SSB for a serving cell at the same time.
[0150] In view of this, embodiments of this application propose a configuration and measurement process for serving cell measurement based on OD-SSB. This will be described in detail below with reference to method 500.
[0151] Aspect 2, Associated SSB (or Associated SSB)
[0152] As mentioned earlier, L3 measurements can be based on an SSB or CSI-RS. An SSB includes a PSS and an SSS, which can be used for synchronization. However, CSI-RS does not contain a synchronization signal, therefore, synchronization (or obtaining timing information) requires the use of an associated SSB. The associated SSB is configured in the associated SSB and may have a quasi-co-location (QCL) relationship with CSI-RS resources.
[0153] However, according to the current protocol, CSI-RS-based measurements can be configured with associated SSBs, but it is unclear whether the SSB frequency corresponding to associated SSBs is AO-SSB or OD-SSB.
[0154] In view of this, this application proposes a method for determining associated SSBs. This will be described in detail below with reference to method 600.
[0155] Aspect 3: Intra-frequency measurements and inter-frequency measurements
[0156] Neighbor cell measurements include at least same-frequency measurements and different-frequency measurements.
[0157] For SSB-based measurements, co-frequency measurements require that the neighboring cell SSB has the same frequency as the serving cell SSB, and that the subcarrier spacing of the neighboring cell SSB is the same as that of the serving cell SSB; otherwise, it is an inter-frequency measurement.
[0158] For CSI-RS based measurements, co-frequency measurements require that the subcarrier spacing of the neighboring cell CSI-RS resources is the same as that of the serving cell CSI-RS resources, the center frequency of the neighboring cell CSI-RS resources is the same as that of the serving cell CSI-RS resources, and the cyclic prefix type (CP type) of the neighboring cell CSI-RS resources is the same as that of the serving cell CSI-RS resources.
[0159] However, according to the current protocol, determining whether a neighbor cell measurement is a co-frequency measurement requires comparing the neighbor cell's SSB frequency with the serving cell's SSB frequency (to see if the frequencies are the same). But it's unclear, or rather, not yet determined, that the serving cell's SSB here refers to either the serving cell's AO-SSB or OD-SSB.
[0160] In view of this, this application proposes a method for determining same-frequency / different-frequency measurement based on OD-SSB. This will be described in detail below with reference to method 700.
[0161] Aspect 4, Measurement Interval
[0162] In NR, due to cost considerations, terminal equipment may not be configured with two separate RF links for data transmission and measurement. Therefore, data transmission and measurement may not be able to be performed simultaneously for various reasons, such as at least one of the following: measurement of the target cell requires frequency switching; the target cell's SSB is not within the terminal equipment's currently active BWP; the subcarrier spacing of the target cell's SSB differs from that of the local cell's SSB; in FR1, the UE capability does not support simultaneous processing when the SSB's subcarrier spacing differs from that of the PDSCH / PDCCH; or in FR2, the SSB's receive beam direction differs from the data's receive beam direction, etc. When data transmission and measurement cannot be performed simultaneously, mechanisms are needed to circumvent this limitation.
[0163] In short, a measurement interval is a period of time allocated to the terminal device during which it is not required to receive physical downlink control channel (PDCCH) / physical downlink shared channel (PDSCH) or transmit physical uplink control channel (PUCCH) / physical uplink shared channel (PUSCH). During this period, the terminal device performs measurements and then switches back to the serving cell to continue data transmission and reception after the measurements are completed.
[0164] Measurements involving switching frequencies in NR, including inter-frequency measurements, inter-system measurements, and intra-frequency measurements when the SSB to be measured is not within the currently active BWP, may all require the use of measurement intervals.
[0165] Typically, in addition to supporting device-level measurement gaps (per-UE gap), terminal equipment may also support frequency range (PF) level measurement gaps (per-FR gap), depending on the capabilities of the terminal equipment. A per-UE gap refers to a measurement gap applicable to both FR1 and FR2. A per-FR gap defines a set of measurement gap patterns for each of the FR1 and FR2 frequency bands, and each set of measurement gap patterns is only applicable to the corresponding frequency band. For information on per-UE gaps and per-FR gaps, please refer to the standards; specific limitations are not provided here.
[0166] This application is primarily concerned with intra-RAT measurements, which include both intra-frequency and inter-frequency measurements.
[0167] For SSB-based co-frequency measurements, if the terminal device reports a measurement interval requirement or measurement interval capability, whether the network device configures the measurement interval depends on the content reported by the terminal device. Otherwise, if any configured BWP other than the initial BWP does not contain an SSB associated with the initial downlink BWP (i.e., the serving cell SSB, which is also the SSB configured in servingCellMO) and is not configured with an NCD-SSB for serving cell measurements, then the network device must configure the measurement interval for the terminal device.
[0168] For SSB-based inter-frequency measurements, if the terminal device reports the aforementioned measurement interval requirements or measurement interval capabilities, whether the network device configures the measurement interval depends on the content reported by the terminal device. Otherwise, if the terminal device only supports per-UE gaps, or if the terminal device supports per-FR gaps but the FR containing the frequency to be measured has a serving cell, then the network device must configure the measurement interval for the terminal device.
[0169] However, for co-frequency measurements based on SSB, according to the current protocol, whether a measurement interval is required depends on whether the SSB frequency point is within the BWP. However, it is unclear, or rather, not yet determined, that the SSB here refers to AO-SSB or OD-SSB.
[0170] In view of this, embodiments of this application propose a method for determining whether a measurement interval is required for same-frequency measurements based on OD-SSB. This will be described in detail below with reference to method 700.
[0171] The methods provided by the embodiments of this application will be described in detail below with reference to the accompanying drawings. The embodiments provided by this application can be applied to the scenarios shown in the above figures and are not limited thereto. Furthermore, the terms used below are as explained above and will not be repeated hereafter. For ease of description, terminal devices and network devices are used as examples for illustrative purposes. The terminal device can be replaced by components of the terminal device (e.g., a chip, chip system, circuit, or communication module), and the network device can be replaced by components of the network device (e.g., a chip, chip system, circuit, or communication module). Furthermore, the steps described below as being performed by a single execution entity can also be divided into steps performed by multiple execution entities, which can be logically and / or physically separated.
[0172] Referring to Figure 5, as an example, Figure 5 is a schematic diagram of a measurement method 500 provided in an embodiment of this application. The method 500 shown in Figure 5 may include the following steps.
[0173] Method 500 includes steps S520 and S530. Optionally, method 500 also includes steps S510 and S540. These steps are described below.
[0174] S510, the terminal device receives serving cell configuration information, which includes the frequency point information of the OD-SSB. Correspondingly, the network device sends the serving cell configuration information. The serving cell configuration information represents information related to the serving cell configuration.
[0175] For example, the frequency information of OD-SSB is per cell, meaning that the frequency information of OD-SSB is included in the serving cell configuration information. This frequency information of OD-SSB is used for one or more specific cells. In other words, different cells or different cell groups can correspond to different OD-SSB frequencies. In other words, the OD-SSB frequency corresponding to a cell can be carried in the configuration information at the cell level.
[0176] Another example is that the frequency information of OD-SSB is at the BWP granularity (per BWP), that is, the frequency information of OD-SSB is included in the serving cell configuration information, and the frequency information of OD-SSB is used for one or more specific BWPs; in other words, different BWPs or different BWP groups can correspond to different OD-SSB frequencies; in other words, the OD-SSB frequency corresponding to the cell can be carried in the BWP granular configuration information.
[0177] In S520, the terminal device receives measurement configuration information. Correspondingly, the network device sends serving cell configuration information.
[0178] Measurement configuration information and service cell configuration information can be carried in one signaling message or in different signaling messages, without limitation.
[0179] The measurement configuration information, or serving cell measurement configuration information, can be used for serving cell measurements based on OD-SSB. In other words, the serving cell measurement configuration information includes relevant information for serving cell measurements based on OD-SSB. Several possible implementation methods are described below.
[0180] Method 1: The serving cell configuration information carries the first serving cell measurement object, which is used for serving cell measurement based on OD-SSB.
[0181] Specifically, the serving cell configuration information carries a first serving cell measurement object (e.g., servingCellMO-OD). This first serving cell measurement object is associated with the serving cell and can be used to perform serving cell measurements based on OD-SSB. As an example, this first serving cell measurement object can be denoted as servingCellMO-OD. It is understood that servingCellMO-OD is merely a name used for differentiation and does not limit the scope of protection of the embodiments of this application. For example, servingCellMO-OD can also be replaced with any of the following: servingCellMO-OD-SSB, servingCellMO-r19, servingCellMO. For brevity, servingCellMO-OD will be used in the following description.
[0182] Optionally, the serving cell configuration information also carries a second serving cell measurement object, which is used to perform serving cell measurements based on AO-SSB. Based on this, it is clear that the serving cell measurement object in the existing configuration is for AO-SSB. For example, this second serving cell measurement object can be denoted as servingCellMO-AO. It is understood that servingCellMO-AO is merely a name used for differentiation and does not limit the scope of protection of the embodiments of this application. For example, servingCellMO-AO can also be replaced with any of the following: servingCellMO-AO-SSB, servingCellMO-NR, servingCellMO. For brevity, servingCellMO-AO will be used in the following description.
[0183] Optionally, servingCellMO-OD is associated with (or mapped to) a measurement object. The network device configures the SSB frequency point as the OD-SSB frequency point in this measurement object, and the SSB measurement timing configuration (SMTC) in this measurement object is used to measure the OD-SSB. The method by which servingCellMO-OD is associated with the measurement object is not limited. For example, if servingCellMO-OD includes an identifier for a measurement object, then servingCellMO-OD can be considered associated with that measurement object.
[0184] Method 2: BWP-DownlinkDedicated carries servingCellMO-OD for serving cell measurements based on OD-SSB.
[0185] Optionally, servingCellMO-OD is associated with (or mapped to) a measurement object, in which the network device is configured with the SSB frequency point as the OD-SSB frequency point, and the SMTC in the measurement object is used to measure the OD-SSB. Refer to the description in Method 1 for this.
[0186] Method 3: The serving cell measurement object is associated with a measurement object (e.g., denoted as measurement object #1, an example of the first measurement object). The SSB frequency point configured in measurement object #1 is the OD-SSB frequency point. Measurement object #1 is used for serving cell measurement based on OD-SSB.
[0187] Optionally, the SSB frequency point configured in measurement object #1 may also include an AO-SSB frequency point. Measurement object #1 is also used for serving cell measurement based on AO-SSB. Specifically, the SSB frequency point configured in measurement object #1 is an AO-SSB frequency point. An OD-SSB frequency point can be additionally configured in measurement object #1, thereby reusing existing measurement objects and enabling serving cell measurement by the terminal device based on AO-SSB and / or OD-SSB. It is understood that in actual communication, measurement object #1 may not carry an AO-SSB frequency point.
[0188] Specifically, if the terminal device performs serving cell measurement based on AO-SSB, the terminal device performs serving cell measurement based on the SSB-related configuration for AO-SSB in measurement object #1; if the terminal device performs serving cell measurement based on OD-SSB, the terminal device performs serving cell measurement based on the SSB-related configuration for OD-SSB in measurement object #1. As an example, the SSB-related configuration includes, but is not limited to: SSB frequency point and SMTC.
[0189] Optionally, the serving cell configuration information carries indication information (such as denoted as servingCellMO-r19 information element) to be associated with the serving cell measurement object containing OD-SSB.
[0190] S530, the OD-SSB or AO-SSB of the terminal equipment measuring the serving cell.
[0191] The first possible implementation involves the terminal device performing measurements based on the serving cell measurement object configuration of the OD-SSB.
[0192] One possible scenario is that the serving cell configuration information carries the servingCellMO-OD, i.e., method 1 described above. In this case, in S530, the terminal device uses the configuration in the servingCellMO-OD carried by the serving cell configuration information to perform serving cell measurements.
[0193] Another possible scenario is that BWP-DownlinkDedicated carries servingCellMO-OD, i.e., method 2 above. In this case, in S530, the terminal device uses the configuration in servingCellMO-OD carried by BWP-DownlinkDedicated to perform serving cell measurement.
[0194] Another possible scenario is that the serving cell measurement object is associated with measurement object #1, which has an AO-SSB frequency configured in its SSB configuration and can also have an OD-SSB frequency configured, i.e., method 3 described above. It is understandable that in actual communication, measurement object #1 may not carry an AO-SSB frequency. In this case, in S530, the terminal device uses the SSB-related configuration for OD-SSB in measurement object #1 to perform serving cell measurements.
[0195] The triggering conditions for OD-SSB of the serving cell measured by the terminal equipment are not limited. Several examples are introduced below.
[0196] Example 1: The terminal device directly performs measurements based on the serving cell measurement object configuration of the OD-SSB. That is, after receiving the OD-SSB, the terminal device measures the OD-SSB of the serving cell.
[0197] Example 2: After receiving the first instruction information, the terminal device performs measurement based on the serving cell measurement object configuration of the OD-SSB, that is, after receiving the first instruction information, the terminal device measures the OD-SSB of the serving cell.
[0198] The first instruction information instructs the OD-SSB to send.
[0199] The specific content of the first instruction information is not limited. For example, the first instruction information indicating OD-SSB transmission can be replaced by any of the following: the first instruction information indicating activation of OD-SSB-based serving cell measurement; or, the first instruction information indicating activation of OD-SSB transmission status; or, the first instruction information indicating deactivation of AO-SSB-based serving cell measurement; or, the first instruction information indicating no AO-SSB transmission; or, the first instruction information indicating deactivation of AO-SSB transmission status.
[0200] As an example, the first indication information may be carried in control signaling, such as but not limited to: RRC, DCI, medium access control (MAC) layer signaling (such as MAC control element (MAC CE / MAC-CE)).
[0201] The implementation of the first indication information is not limited. For example, if the first indication information is carried on a specific MAC CE (such as OD-SSB MAC CE), and the terminal device receives the specific MAC CE, the terminal device determines that the OD-SSB has been sent. Therefore, the serving cell measurement based on the OD-SSB can be activated, that is, after receiving the OD-SSB, the OD-SSB is measured.
[0202] Example 3: After receiving the first instruction information, the terminal device performs measurements based on the serving cell measurement object configuration of OD-SSB after a preset time. Therefore, the terminal device does not need to immediately start measurements based on the serving cell measurement object configuration of OD-SSB after receiving the first instruction information; instead, it can perform measurements based on the serving cell measurement object configuration of OD-SSB after the effective time of OD-SSB measurements (i.e., after the preset time).
[0203] The start time of preset duration #1 is either the moment the terminal device receives the first indication information or a moment after receiving the first indication information, and is not limited. The length of the preset duration can be predefined or configured, and is not limited. As an example, the preset duration is after time instance A. As an example, time instance A can represent the time domain position of the first SSB sent on-demand.
[0204] The second possible implementation is that the terminal device performs measurements based on the AO-SSB serving cell measurement object configuration; in other words, the terminal device performs measurements based on the traditional serving cell measurement object (legacy servingCellMO).
[0205] In one possible scenario, the serving cell configuration information carries the servingCellMO-AO. In this case, in S530, the terminal device uses the configuration in the servingCellMO-AO carried in the serving cell configuration information to perform serving cell measurements.
[0206] Another possible scenario is that the serving cell measurement object is associated with measurement object #1, and the SSB frequency points configured in measurement object #1 include the AO-SSB frequency points. In this case, in S530, the terminal device uses the SSB-related configuration for AO-SSB in measurement object #1 to perform serving cell measurements.
[0207] The triggering conditions for the AO-SSB of the serving cell measured by the terminal equipment are not limited. Several examples are introduced below. The examples below can be used in combination with the examples 1 to 3 above, or they can be used alone without limitation.
[0208] Example 1: The terminal device directly performs measurements based on the serving cell measurement object configuration of the AO-SSB. That is, after receiving the AO-SSB, the terminal device measures the AO-SSB of the serving cell.
[0209] Example 2: When the terminal device does not receive the first instruction information, it performs measurement based on the serving cell measurement object configuration of AO-SSB.
[0210] Example 3: Before receiving the first instruction information, the terminal device performs measurements based on the serving cell measurement object configuration of AO-SSB.
[0211] Example 4: After receiving the second instruction information, the terminal device performs measurement based on the serving cell measurement object configuration of AO-SSB.
[0212] The second indication information can instruct the OD-SSB not to send. It is understood that the second indication information instructing the OD-SSB not to send does not limit the OD-SSB to not sending at all. For example, the second indication information instructing the OD-SSB not to send can be understood as the OD-SSB not sending within a certain time range, such as before the terminal device receives the AO-SSB, etc., and this is not limited.
[0213] The specific content of the second instruction information is not limited. For example, the second instruction information indicating that OD-SSB should not be transmitted can be replaced by any of the following: the second instruction information indicating deactivation of OD-SSB-based serving cell measurement; or, the second instruction information indicating deactivation of OD-SSB transmission status; or, the second instruction information indicating activation of AO-SSB-based serving cell measurement; or, the second instruction information indicating AO-SSB transmission; or, the second instruction information indicating activation of AO-SSB transmission status.
[0214] As an example, the second indication information may be carried in control signaling, such as but not limited to: RRC, DCI, MAC layer signaling (such as MAC CE).
[0215] The implementation of the second indication information is not limited. For example, if the second indication information is carried on a specific MAC CE (such as OD-SSB MAC CE), and the terminal device does not receive the specific MAC CE, the terminal device determines that OD-SSB will not be sent. Therefore, the terminal device performs measurements based on the serving cell measurement object configuration of AO-SSB.
[0216] S540, the terminal device sends the measurement results.
[0217] The measurement results can be obtained by the terminal device measuring the OD-SSB of the serving cell, or by measuring the AO-SSB of the serving cell, depending on the measurement of the terminal device.
[0218] As an example, the measurement results include at least one of the following: reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), signal-noise ratio (SNR), and signal to interference plus noise ratio (SINR) (or simply signal-to-noise ratio).
[0219] In one possible implementation, the terminal device sends a measurement result that includes a third indication message indicating that the measurement result was obtained by AO-SSB or OD-SSB measurement.
[0220] Specifically, if in S530, the terminal device performs measurement based on the serving cell measurement object configuration of OD-SSB, then the third indication information indicates that the measurement result is obtained by OD-SSB measurement, that is, the measurement result is obtained by measuring the OD-SSB of the serving cell through the third indication information; if in S530, the terminal device performs measurement based on the serving cell measurement object configuration of AO-SSB, then the third indication information indicates that the measurement result is obtained by AO-SSB measurement, that is, the measurement result is obtained by measuring the AO-SSB of the serving cell through the third indication information.
[0221] As an example, the third indication information indicates the frequency point information of AO-SSB or OD-SSB. Specifically, if in S530, the terminal device performs measurement based on the serving cell measurement object configuration of OD-SSB, then the third indication information indicates the frequency point information of OD-SSB; if in S530, the terminal device performs measurement based on the serving cell measurement object configuration of AO-SSB, then the third indication information indicates the frequency point information of AO-SSB.
[0222] In a second possible implementation, the terminal device sends the measurement results, which are carried in either a first field or a second field. The first field carries the measurement results for OD-SSB, and the second field carries the measurement results for AO-SSB.
[0223] Specifically, if in S530, the terminal device performs measurement based on the serving cell measurement object configuration of OD-SSB, the measurement result is carried in the first field, that is, by carrying the measurement result in the first field, the measurement result implicitly indicates that the measurement result is obtained by measuring the OD-SSB of the serving cell; if in S530, the terminal device performs measurement based on the serving cell measurement object configuration of AO-SSB, the measurement result is carried in the first field, that is, by carrying the measurement result in the second field, the measurement result implicitly indicates that the measurement result is obtained by measuring the AO-SSB of the serving cell.
[0224] As an example, the first field could be called measResultsServingCell-OD, measResultServingCell-r19, or measResultServingCell-OD-r19, and the second field could be called measResultServingCell or measResultServingCell-AO. For instance, the terminal device reports the AO-SSB measurement results to the network device through the measResultServingCell field in MeasResultsServingMO, and the terminal device reports the OD-SSB measurement results to the network device through the measResultsServingCell-OD field in MeasResultsServingMO.
[0225] Alternatively, when the terminal device performs measurements based on the serving cell measurement object configuration of OD-SSB, the measurement results may not need to include the best neighbor on servingCellMO-OD.
[0226] The above section, in conjunction with method 500, introduces the relevant solutions in aspect 1. The following section, in conjunction with method 600, introduces the relevant solutions in aspect 2.
[0227] Referring to Figure 6, as an example, Figure 6 is a schematic diagram of a measurement method 600 provided in an embodiment of this application. The method 600 shown in Figure 6 may include the following steps.
[0228] Method 600 includes step S620. Optionally, method 600 includes steps S610 and S630. These steps are described below.
[0229] S610: The terminal device receives the serving cell configuration information. Correspondingly, the network device sends the serving cell configuration information.
[0230] Among them, the serving cell configuration information represents information related to the configuration of the serving cell.
[0231] Optionally, the serving cell configuration information includes the frequency point information of CSI-RS and / or the frequency point information of OD-SSB.
[0232] In S620, the terminal device receives measurement configuration information. Correspondingly, the network device sends serving cell configuration information.
[0233] Measurement configuration information and service cell configuration information can be carried in one signaling message or in different signaling messages, without limitation.
[0234] The measurement configuration information, or serving cell measurement configuration information, can be used for at least one of the following: serving cell measurement based on CSI-RS, serving cell measurement based on OD-SSB, and serving cell measurement based on AO-SSB. For serving cell measurement based on OD-SSB, refer to methods 1 to 3 in method 500.
[0235] When the measurement configuration information is used for CSI-RS-based serving cell measurements, method 600 also includes S630.
[0236] S630, the terminal device measures the CSI-RS of the serving cell based on the measurement configuration information, wherein the SSB associated with the CSI-RS of the serving cell is OD-SSB or AO-SSB.
[0237] Optionally, method 600 further includes: the terminal device sending measurement results. The measurement results may be obtained by the terminal device measuring the CSI-RS of the serving cell. As an example, the measurement results include at least one of the following: RSRP, RSRQ, SNR, SINR.
[0238] Optionally, method 600 further includes: when the terminal device determines (or determines) the associated SSB of the CSI-RS as the OD-SSB or AO-SSB during the serving cell measurement based on CSI-RS.
[0239] In this context, the associated SSB of CSI-RS refers to the associated SSB described in aspect 2 above. That is, the associated SSB of CSI-RS can be configured within the associated SSB and may have a QCL relationship with CSI-RS resources. For brevity, the following explanations will use the associated SSB of CSI-RS as an example.
[0240] The following describes several possible implementation methods.
[0241] The first possible implementation is that CSI-RS is associated with the SSB in the same serving cell measurement object.
[0242] Specifically, if the CSI-RS and SSB#1 of a serving cell are associated with the same serving cell measurement object, then the associated SSB of the CSI-RS is that SSB#1. For example, if the serving cell's measurement configuration includes an OD-SSB measurement configuration, and the serving cell configuration information or BWP-DownlinkDedicated carries the serving cell measurement object associated with the OD-SSB (such as servingCellMO-OD), and if the serving cell measurement object associated with the serving cell's CSI-RS and the serving cell measurement object associated with the OD-SSB are the same, then the associated SSB of the CSI-RS can be determined to be the OD-SSB.
[0243] The second possible implementation is that when the OD-SSB is in the transmitting state, the associated SSB of the CSI-RS is the OD-SSB; otherwise, the associated SSB of the CSI-RS is the AO-SSB.
[0244] For example, a serving cell measurement object is associated with a measurement object (e.g., measurement object #1). The SSB frequency points configured in measurement object #1 include AO-SSB frequency points and OD-SSB frequency points. If the terminal device uses the SSB-related configuration for OD-SSB in measurement object #1 to perform serving cell measurement, then the associated SSB of CSI-RS is OD-SSB. If the terminal device uses the SSB-related configuration for AO-SSB in measurement object #1 to perform serving cell measurement, then the associated SSB of CSI-RS is AO-SSB.
[0245] The second possible implementation described above can also be replaced by: if the terminal device receives the first indication information or activates serving cell measurement based on OD-SSB or does not activate serving cell measurement based on AO-SSB or the AO-SSB is in a non-transmitting state, then the associated SSB of the CSI-RS is OD-SSB; otherwise, the associated SSB of the CSI-RS is AO-SSB; or, if the terminal device receives the second indication information or activates serving cell measurement based on AO-SSB or does not activate serving cell measurement based on OD-SSB or the AO-SSB is in a transmitting state, then the associated SSB of the CSI-RS is AO-SSB; otherwise, the associated SSB of the CSI-RS is OD-SSB. The relevant descriptions of the first and second indication information in method 500 are not repeated here.
[0246] The third possible implementation is that the measurement configuration information of CSI-RS includes indication information, which indicates the associated SSB of CSI-RS.
[0247] The indication information can specify whether the CSI-RS associated SSB is an OD-SSB or an AO-SSB. One possible implementation is to add an indication of whether the CSI-RS associated SSB is an OD-SSB or AO-SSB to the CSI-RS associated SSB configuration. For example, adding an associated SSB frequency point field to the CSI-RS associated SSB configuration. Alternatively, the indication of whether the CSI-RS associated SSB is an OD-SSB or AO-SSB can be carried in the CSI-RS Resource Mobility Management (CSI-RS-Resource-Mobility) field.
[0248] As an example, the indication information indicates the frequency of the associated SSB of the CSI-RS. For instance, if the associated SSB of the CSI-RS is OD-SSB, the indication information indicates the frequency information of the OD-SSB; as another example, if the associated SSB of the CSI-RS is AO-SSB, the indication information indicates the frequency information of the AO-SSB.
[0249] The above section introduces the relevant solutions in aspect 1 in conjunction with method 500, the relevant solutions in aspect 2 in conjunction with method 600, and the relevant solutions in aspects 3 and 4 in conjunction with method 700.
[0250] Referring to Figure 7, as an example, Figure 7 is a schematic diagram of a measurement method 700 provided in an embodiment of this application. The method 700 shown in Figure 7 may include the following steps.
[0251] Method 700 includes steps S720 and S730. Optionally, method 700 includes step S710. These steps are described below.
[0252] S710: The terminal device receives the serving cell configuration information. Correspondingly, the network device sends the serving cell configuration information.
[0253] In S720, the terminal device receives measurement configuration information. Correspondingly, the network device sends serving cell configuration information.
[0254] Optionally, the measurement configuration information can be used for at least one of the following: OD-SSB-based serving cell measurement, and AO-SSB-based serving cell measurement. For OD-SSB-based serving cell measurement, refer to methods 1 to 3 in method 500.
[0255] S730, the terminal device determines (or confirms) whether the neighbor cell measurement is a same-frequency measurement or a different-frequency measurement.
[0256] Specifically, the terminal device can determine whether the neighboring cell measurement is a co-frequency measurement or a different frequency measurement based on the serving cell configuration information and / or measurement configuration information. One possible implementation is that the terminal device determines whether the neighboring cell measurement is a co-frequency measurement or a different frequency measurement based on the SSB (such as OD-SSB, or AO-SSB) frequency point and SCS of the serving cell measurement object.
[0257] For example, for measurements based on SSBs (such as OD-SSB or AO-SSB), if the frequency of the neighboring cell SSB is the same as that of the serving cell SSB, and the subcarrier spacing of the neighboring cell SSB is the same as that of the serving cell SSB, then the neighboring cell measurement is a co-frequency measurement; otherwise, it is a cross-frequency measurement.
[0258] The following describes several possible implementation methods.
[0259] The first possible implementation is to determine whether neighboring cell measurements are co-frequency measurements based on existing serving cell measurement objects (legacy servingCellMO) in the protocol.
[0260] For example, when the serving cell's measurement configuration information is not used for OD-SSB-based serving cell measurements, legacy servingCellMO is used to determine whether neighboring cell measurements are co-frequency measurements. In other words, when the network device is not configured with OD-SSB measurement, legacy servingCellMO is used to determine whether neighboring cell measurements are co-frequency measurements.
[0261] Another example is when OD-SSB measurements are inactive, the legacy servingCellMO is used to determine whether neighboring cell measurements are on the same frequency. In other words, the network device is configured with OD-SSB measurements, but OD-SSB measurements are not yet active, the legacy servingCellMO is used to determine whether neighboring cell measurements are on the same frequency.
[0262] The second possible implementation method is to determine whether neighboring cells are being measured at the same frequency based on the OD-SSB measurement configuration.
[0263] For example, when the serving cell's measurement configuration information is used for OD-SSB-based serving cell measurements, the OD-SSB measurement configuration is used to determine whether neighboring cell measurements are co-frequency measurements. In other words, when the network device is configured with OD-SSB measurement, the OD-SSB measurement configuration is used to determine whether neighboring cell measurements are co-frequency measurements.
[0264] For example, if the measurement configuration of the serving cell includes OD-SSB measurement configuration, and servingCellConfig is configured with servingCellMO-OD (i.e., an example of the measurement object of the first serving cell), then the terminal device determines whether the neighboring cell is being measured on the same frequency based on the SSB frequency point and SCS in servingCellMO-OD.
[0265] For example, if the measurement configuration of the serving cell includes OD-SSB measurement configuration, and BWP-DownlinkDedicated is configured with servingCellMO-OD (i.e., an example of the measurement object of the first serving cell), then the terminal device determines whether the neighboring cell is being measured on the same frequency based on the SSB frequency point and SCS in servingCellMO-OD.
[0266] For example, if the measurement configuration of the serving cell includes OD-SSB measurement configuration, and the measObjectNR (i.e., an example of the first measurement object) is configured with an OD-SSB frequency point, then the terminal device determines whether the neighboring cell is a co-frequency measurement based on the OD-SSB frequency point and SCS in the servingCellMO.
[0267] Another example is that when OD-SSB measurement is active, the system determines whether neighboring cell measurements are on the same frequency based on the OD-SSB measurement configuration. In other words, when the network device is configured with OD-SSB measurement and OD-SSB measurement is active, the system determines whether neighboring cell measurements are on the same frequency based on the OD-SSB measurement configuration.
[0268] Optionally, method 700 further includes: the network device determining whether to configure a measurement interval for the terminal device.
[0269] The following section mainly introduces how network devices determine whether to configure measurement intervals for terminal devices in the scenario of same-frequency measurement.
[0270] The first possible implementation is that the network device determines whether to configure a measurement interval for the terminal device based on the terminal device's reported capability / requirement for a measurement interval.
[0271] For example, if a terminal device reports a requirement for a measurement interval to the network device, or if the terminal device reports capability information to the network device indicating that the terminal device supports measurement intervals, then the network device will configure a measurement interval for the terminal device; if the terminal device reports that a measurement interval is not required to the network device, or if the terminal device reports capability information to the network device indicating that the terminal device does not support measurement intervals, then the network device will not configure a measurement interval for the terminal device.
[0272] The second possible implementation is that the network device determines whether to configure a measurement interval for the terminal device based on whether the BWP contains an OD-SSB.
[0273] For example, if any BWP configuration other than the initial BWP does not contain an OD-SSB, then the network device configures a measurement interval for the end device.
[0274] In another example, if any configured BWP does not contain an OD-SSB, the network device configures a measurement interval for the end device.
[0275] It is understandable that the two implementation methods described above can also be used in combination. For example, if the terminal device reports whether it needs the capability / requirement of measurement intervals, the network device determines whether to configure measurement intervals for the terminal device based on the terminal device's report; if the terminal device does not report whether it needs the capability / requirement of measurement intervals, the network device determines whether to configure measurement intervals for the terminal device based on the second possible implementation method described above.
[0276] The above mainly introduced the scenario of intra-frequency measurement. For inter-frequency measurement scenarios, the existing mechanism can be used to determine whether to configure a measurement interval for the terminal device. For example, if the terminal device reports whether it needs a measurement interval, the network device determines whether to configure a measurement interval for the terminal device based on the terminal device's report; if the terminal device does not report whether it needs a measurement interval, and the terminal device supports per UE gap, or the UE supports per FR gap but there is a serving cell within the FR where the SSB under test is located, then a measurement gap needs to be configured for the UE.
[0277] The above descriptions, using methods 500-700, outline the relevant solutions for aspects 1 to 4. It is understood that methods 500-700 can be used individually or in combination, without limitation. Furthermore, considering the CU and DU architectures, the introduction of OD-SSB allows for the following signaling interactions.
[0278] Optionally, the DU can send indication information to the CU, which indicates the SSB type, specifically AO-SSB or OD-SSB. Accordingly, the CU receives this indication information and can determine whether the SSB type is AO-SSB or OD-SSB based on it, thereby configuring the serving cell measurement object within the measurement object. As an example, the indication information can be the Served Cell Information element carried on the F1 interface, and can be carried in an F1 SETUP REQUEST message or a gNB-DU CONFIGURATION UPDATE message.
[0279] Optionally, the CU sends servingCellMO-OD or servingCellMO to the DU for the DU to configure servingCellMO-OD and servingCellMO in the cell-level configuration. Specifically, taking method 1 in method 500 as an example, the serving cell configuration information may include servingCellMO-OD (i.e., for serving cell measurements based on OD-SSB) and servingCellMO (i.e., for serving cell measurements based on AO-SSB). Therefore, the CU can send additional serving cell measurement objects (i.e., servingCellMO-OD or servingCellMO) to the DU for the DU to configure servingCellMO-OD and servingCellMO in the cell-level configuration. As an example, this can be carried in the UE context establishment request (UE CONTEXT SETUP REQUEST) or UE context update request (UE CONTEXT MODIFICATION REQUEST) message.
[0280] The methods provided by the embodiments of this application have been described in detail above with reference to Figures 5 to 7. The apparatus provided by the embodiments of this application will be described in detail below with reference to Figures 8 to 10. It should be understood that the descriptions of the apparatus embodiments correspond to the descriptions of the method embodiments; therefore, any content not described in detail can be referred to the method embodiments above, and for the sake of brevity, will not be repeated here.
[0281] Referring to Figure 8, as an example, Figure 8 is a schematic diagram of a communication device 800 provided in an embodiment of this application. The communication device 800 includes a transceiver unit 810 and a processing unit 820. The transceiver unit 810 can be used to implement corresponding communication functions. The transceiver unit 810 can also be referred to as a communication interface or a communication unit. The processing unit 820 can be used to perform processing, such as measuring the serving cell.
[0282] Optionally, the device 800 may further include a storage unit for storing instructions and / or data, and the processing unit 820 may read the instructions and / or data from the storage unit to enable the device to implement the aforementioned method embodiments.
[0283] In a first possible design, the device 800 can be the terminal device in the foregoing embodiments, which can implement the steps or processes corresponding to those executed by the terminal device in the above method embodiments. Specifically, the transceiver unit 810 can be used to perform transceiver-related operations (such as sending and / or receiving data or messages) of the terminal device in the above method embodiments, and the processing unit 820 can be used to perform processing-related operations of the terminal device in the above method embodiments, or operations other than transceiver (such as operations other than sending and / or receiving data or messages).
[0284] In a first possible implementation, the transceiver unit 810 is used to receive measurement configuration information, which is used for serving cell measurement based on on-demand SSB; the processing unit 820 is used to measure the on-demand SSB of the serving cell based on the measurement configuration information; and the transceiver unit 810 is also used to send the measurement results.
[0285] Optionally, the processing unit 820 is used to measure the on-demand SSB of the serving cell, including: the processing unit 820 is used to measure the on-demand SSB of the serving cell upon receiving a first indication message, wherein the first indication message instructs the on-demand SSB to be sent.
[0286] Optionally, the processing unit 820 is used to measure the on-demand SSB of the serving cell, including: the processing unit 820 is used to measure the on-demand SSB of the serving cell after a preset time after receiving the first indication information.
[0287] Optionally, the processing unit 820 is further configured to: measure the always-on SSB of the serving cell if no first indication information is received; or measure the always-on SSB of the serving cell for a preset period of time after receiving the first indication information; or measure the always-on SSB of the serving cell after receiving the second indication information; wherein the second indication information indicates that the on-demand SSB is not transmitted.
[0288] In a second possible implementation, the transceiver unit 810 is used to receive measurement configuration information, which is used for serving cell measurement based on the Channel State Information Reference Signal (CSI-RS); the processing unit 820 is used to measure the CSI-RS of the serving cell based on the measurement configuration information, wherein the SSB associated with the CSI-RS of the serving cell is either an on-demand synchronization signal block (SSB) or an always-on synchronization signal block (SSB).
[0289] The third possible implementation is a transceiver unit 810, which is used to receive measurement configuration information; and a processing unit 820, which is used to determine whether neighbor cell measurements are co-frequency measurements based on the measurement information of the on-demand SSB in the case of serving cell measurements based on the on-demand synchronization signal block (SSB).
[0290] In a second possible design, the device 800 can be a network device as described in the foregoing embodiments. This device 800 can implement the steps or processes performed by the network device corresponding to those described in the method embodiments above. Specifically, the transceiver unit 810 can be used to perform transceiver-related operations (such as sending and / or receiving data or messages) of the network device described in the method embodiments above, and the processing unit 820 can be used to perform processing-related operations of the network device described in the method embodiments above, or operations other than transceiver operations (such as operations other than sending and / or receiving data or messages).
[0291] In a first possible implementation, the transceiver unit 810 is used to send measurement configuration information for serving cell measurement based on on-demand SSB; the transceiver unit 810 is also used to receive measurement results obtained by measuring the on-demand SSB of the serving cell.
[0292] In a second possible implementation, processing unit 820 is used to determine measurement configuration information, which is used for serving cell measurement based on channel state information reference signal CSI-RS. The SSB associated with CSI-RS is either on-demand synchronization signal block or always-on synchronization signal block; transceiver unit 810 is used to transmit the measurement configuration information.
[0293] In a third possible implementation, processing unit 820 is used to determine whether any configuration of BWP other than the initial bandwidth portion BWP contains an on-demand SSB, or to determine whether any configuration of BWP contains an on-demand SSB; if any configuration of BWP other than the initial BWP does not contain an on-demand SSB, or if any configuration of BWP does not contain an on-demand SSB, transceiver unit 810 is used to send indication information, the indication information indicating the measurement interval.
[0294] It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.
[0295] It should also be understood that the device 800 here is embodied in the form of a functional unit. The term "unit" here can refer to an application-specific integrated circuit (ASIC), electronic circuitry, a processor (e.g., a shared processor, a proprietary processor, or a group processor, etc.) and memory for executing one or more software or firmware programs, combined logic circuitry, and / or other suitable components supporting the described functions. In an alternative example, those skilled in the art will understand that the device 800 can specifically be the communication device in the above embodiments, and can be used to execute the various processes and / or steps corresponding to the communication device in the above method embodiments; to avoid repetition, these will not be described again here.
[0296] The apparatus 800 of each of the above-described schemes has the function of implementing the corresponding steps performed by the communication device (such as a terminal device or a network device) in the above-described methods. The function can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (e.g., the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as processing units, can be replaced by processors, each performing the transmission and reception operations and related processing operations in the respective method embodiments.
[0297] In addition, the transceiver unit 810 described above can also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit can be a processing circuit.
[0298] It should be noted that the device in Figure 8 can be the communication device (such as a terminal device or a network device) in the foregoing embodiments, or it can be a chip or a chip system, such as a system on a chip (SoC). The transceiver unit can be an input / output circuit or a communication interface; the processing unit is a processor, microprocessor, or integrated circuit integrated on the chip. No limitations are imposed here.
[0299] Referring to Figure 9, as an example, Figure 9 is a schematic diagram of another communication device 900 provided in an embodiment of this application. The device 900 includes a processor 910, which is coupled to a memory 920. The memory 920 is used to store computer programs or instructions and / or data. The processor 910 is used to execute the computer programs or instructions stored in the memory 920, or to read the data stored in the memory 920, to perform the methods in the above method embodiments.
[0300] Optionally, there may be one or more processors 910.
[0301] Optionally, the memory 920 may be one or more.
[0302] Alternatively, the memory 920 can be integrated with the processor 910, or it can be set separately.
[0303] Optionally, as shown in FIG9, the device 900 further includes a transceiver 930 for receiving and / or transmitting signals. For example, the processor 910 is used to control the transceiver 930 to receive and / or transmit signals.
[0304] As an example, processor 910 may have the functions of processing unit 820 shown in FIG8, memory 920 may have the functions of storage unit, and transceiver 930 may have the functions of transceiver unit 810 shown in FIG8.
[0305] As one approach, the device 900 is used to implement the operations performed by a communication device (such as a terminal device or a network device) in the various method embodiments described above.
[0306] For example, processor 910 is used to execute computer programs or instructions stored in memory 920 to implement the relevant operations of the communication device in the various method embodiments described above.
[0307] It should be understood that the processor mentioned in the embodiments of this application can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), ASICs, field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.
[0308] It should also be understood that the memory mentioned in the embodiments of this application can be volatile memory and / or non-volatile memory. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM includes the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).
[0309] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage module) can be integrated into the processor.
[0310] It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.
[0311] Referring to Figure 10, as an example, Figure 10 is a schematic diagram of a chip system 1000 provided in an embodiment of this application. The chip system 1000 (or may also be referred to as a processing system) includes logic circuitry 1010 and an input / output interface 1020.
[0312] The logic circuit 1010 can be a processing circuit in the chip system 1000. The logic circuit 1010 can be coupled to a memory unit, calling instructions from the memory unit, enabling the chip system 1000 to implement the methods and functions of the embodiments of this application. The input / output interface 1020 can be an input / output circuit in the chip system 1000, outputting processed information from the chip system 1000, or inputting data or signaling information to be processed into the chip system 1000 for processing.
[0313] As one approach, the chip system 1000 is used to implement the operations performed by the communication device (such as a terminal device or a network device) in the various method embodiments described above.
[0314] For example, logic circuit 1010 is used to implement processing-related operations performed by a communication device (such as a terminal device or a network device) in the above method embodiments; input / output interface 1020 is used to implement sending and / or receiving-related operations performed by a communication device (such as a terminal device or a network device) in the above method embodiments.
[0315] This application also provides a computer-readable storage medium storing a computer program or instructions for implementing the methods executed by a communication device (such as a terminal device or a network device) in the above-described method embodiments. For example, when the computer program or instructions are run on the communication device, they cause the communication device (such as a terminal device or a network device) to execute the above-described methods (such as method 500, method 600, or method 700).
[0316] This application also provides a computer program product comprising instructions that, when executed by a computer, implement the methods described above as performed by a communication device (such as a terminal device or a network device). For example, when the computer program or instructions are run on the communication device, the communication device (such as a terminal device or a network device) performs the methods described above (such as method 500, method 600, or method 700).
[0317] This application also provides a communication system that includes the terminal device and / or network device described in the preceding embodiments. For example, the system includes the terminal device and network device shown in the embodiment of FIG5. As another example, the system includes the terminal device and network device shown in the embodiment of FIG6. Yet another example, the system includes the terminal device and network device shown in the embodiment of FIG7.
[0318] The explanations and beneficial effects of the relevant contents in any of the devices provided above can be found in the corresponding method embodiments provided above, and will not be repeated here.
[0319] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of apparatus or units may be electrical, mechanical, or other forms.
[0320] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. For example, the computer can be a personal computer, a server, or a network device, etc. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state disks, SSDs). For example, the aforementioned available media include, but are not limited to, USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks, and other media capable of storing program code.
[0321] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A measurement method, characterized in that, include: Receive measurement configuration information, which is used for serving cell measurement based on on-demand SSB; Based on the measurement configuration information, the on-demand SSB of the serving cell is measured, and the measurement results are sent.
2. The method according to claim 1, characterized in that, The measurement of the on-demand SSB of the serving cell includes: Upon receiving a first indication message, the on-demand SSB of the serving cell is measured, and the first indication message instructs the on-demand SSB to send.
3. The method according to claim 2, characterized in that, The step of measuring the on-demand SSB of the serving cell upon receiving the first indication information includes: After a preset time following receipt of the first instruction, the on-demand SSB of the serving cell is measured.
4. The method according to claim 2 or 3, characterized in that, The method further includes any one of the following: If the first indication information is not received, measure the always-on synchronization signal block (SSB) always transmitted by the serving cell; or, Within a preset time period after receiving the first indication information, measure the always-on SSB of the serving cell; or... Upon receiving the second instruction message, the always-on SSB of the serving cell is measured, and the second instruction message indicates that the on-demand SSB is not sent.
5. The method according to any one of claims 1 to 4, characterized in that, The measurement configuration information includes a first serving cell measurement object, which is associated with the serving cell and is used for serving cell measurement based on the on-demand SSB.
6. The method according to claim 5, characterized in that, The measurement configuration information is carried in the serving cell configuration (servingCellConfig), or the measurement configuration information is carried in the bandwidth portion of the dedicated downlink (BWP-DownlinkDedicated).
7. The method according to claim 6, characterized in that, The servingCellConfig also includes a second serving cell measurement object, which is associated with the serving cell and is used for serving cell measurement based on always-on SSB.
8. The method according to any one of claims 1 to 4, characterized in that, The measurement configuration information includes the configuration information of the first measurement object associated with the serving cell, and the SSB frequency point associated with the first measurement object is the frequency point of the on-demand SSB.
9. The method according to any one of claims 1 to 8, characterized in that, The measurement result also includes third indication information, which indicates that the measurement result is obtained based on the on-demand SSB measurement.
10. The method according to any one of claims 1 to 8, characterized in that, The measurement results are contained in a first field, which is dedicated to containing the measurement results of the on-demand SSB.
11. A measurement method, characterized in that, include: Send measurement configuration information, which is used for serving cell measurements based on on-demand SSB; Receive measurement results, which are obtained through the on-demand SSB of the measuring serving cell.
12. The method according to claim 11, characterized in that, The measurement configuration information includes a first serving cell measurement object, which is associated with the serving cell and is used for serving cell measurement based on the on-demand SSB.
13. The method according to claim 12, characterized in that, The measurement configuration information is carried in the serving cell configuration (servingCellConfig), or the measurement configuration information is carried in the bandwidth portion of the dedicated downlink (BWP-DownlinkDedicated).
14. The method according to claim 13, characterized in that, The servingCellConfig also includes a second serving cell measurement object, which is associated with the serving cell and is used for serving cell measurement based on always-on SSB.
15. The method according to claim 11, characterized in that, The measurement configuration information includes the configuration information of the first measurement object associated with the serving cell, and the SSB frequency point associated with the first measurement object is the frequency point of the on-demand SSB.
16. The method according to any one of claims 11 to 15, characterized in that, The measurement result also includes third indication information, which indicates that the measurement result is obtained based on the on-demand SSB measurement.
17. The method according to any one of claims 11 to 15, characterized in that, The measurement results are contained in a first field, which is dedicated to containing the measurement results of the on-demand SSB.
18. A measurement method, characterized in that, include: Receive measurement configuration information, which is used for serving cell measurement based on Channel State Information Reference Signal (CSI-RS); Based on the measurement configuration information, the CSI-RS of the serving cell is measured, wherein the synchronization signal block associated with the CSI-RS is either an on-demand synchronization signal block (SSB) or an always-on synchronization signal block (SSB).
19. The method according to claim 18, characterized in that, When the CSI-RS resources and the on-demand SSB are configured for the same serving cell measurement object, the SSB associated with the CSI-RS is the on-demand SSB; or, In the case of on-demand SSB transmission in the serving cell, the SSB associated with the CSI-RS is an on-demand SSB.
20. The method according to claim 18 or 19, characterized in that, When the CSI-RS resources and the on-demand SSB are configured for different serving cell measurement objects, the SSB associated with the CSI-RS is always-on SSB; or, If the on-demand SSB of the serving cell is not sent, the SSB associated with the CSI-RS is always-on SSB.
21. The method according to claim 18 or 19, characterized in that, The measurement configuration information includes indication information, which indicates that the SSB associated with the CSI-RS is either an on-demand SSB or an always-on SSB.
22. A measurement method, characterized in that, include: The measurement configuration information is determined and used for serving cell measurement based on the Channel State Information Reference Signal (CSI-RS). The synchronization signal block associated with the CSI-RS is either an on-demand synchronization signal block (SSB) or an always-on synchronization signal block (SSB). Send the measurement configuration information.
23. The method according to claim 22, characterized in that, When the CSI-RS resources and the on-demand SSB are configured for the same serving cell measurement object, the SSB associated with the CSI-RS is the on-demand SSB; or, In the case of on-demand SSB transmission in the serving cell, the SSB associated with the CSI-RS is an on-demand SSB.
24. The method according to claim 22 or 23, characterized in that, When the CSI-RS resources and the on-demand SSB are configured for different serving cell measurement objects, the SSB associated with the CSI-RS is always-on SSB; or, If the on-demand SSB of the serving cell is not sent, the SSB associated with the CSI-RS is always-on SSB.
25. The method according to claim 22 or 23, characterized in that, The measurement configuration information includes indication information, which indicates that the SSB associated with the CSI-RS is either an on-demand SSB or an always-on SSB.
26. A measurement method, characterized in that, include: Receive measurement configuration information; The measurement configuration information is used to determine whether neighbor cell measurements are co-frequency measurements based on the measurement information of the on-demand SSB in the case of serving cell measurements based on the on-demand SSB.
27. The method according to claim 26, characterized in that, If the measurement configuration information is not used for serving cell measurements based on on-demand SSB, the neighbor cell measurement is determined to be a co-frequency measurement based on the always-on SSB synchronization signal block.
28. The method according to claim 26 or 27, characterized in that, When the neighboring cell measurement is a same-frequency measurement, the method further includes: If any BWP configuration other than the initial bandwidth portion does not contain an on-demand SSB, or if any BWP configuration does not contain an on-demand SSB, then an indication message is received indicating the measurement interval.
29. A measurement method, characterized in that, include: Determine whether any BWP configuration other than the initial bandwidth portion of the BWP contains an on-demand synchronization signal block (SSB), or determine whether any BWP configuration contains an on-demand SSB. If any BWP configuration other than the initial BWP does not contain an on-demand SSB, or if any BWP configuration does not contain an on-demand SSB, an indication message is sent indicating the measurement interval.
30. A communication device, characterized in that, Includes modules or units for performing the method according to any one of claims 1 to 29.
31. A communication device, characterized in that, Includes a processor, the processor being configured to cause the communication device to perform the method of any one of claims 1 to 29.
32. The apparatus according to claim 31, characterized in that, The device also includes a memory and / or a communication interface. The memory, coupled to the processor, is used to store computer programs or instructions; The communication interface is coupled to the processor and is used for inputting and / or outputting information.
33. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed on a communication device, cause the communication device to perform the method as described in any one of claims 1 to 29.
34. A computer program product, characterized in that, The computer program product includes a computer program or instructions that, when executed on a communication device, cause the communication device to perform the method as described in any one of claims 1 to 29.