WO2021022991A1 - 用于通信的方法和装置 - Google Patents
用于通信的方法和装置 Download PDFInfo
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- WO2021022991A1 WO2021022991A1 PCT/CN2020/102593 CN2020102593W WO2021022991A1 WO 2021022991 A1 WO2021022991 A1 WO 2021022991A1 CN 2020102593 W CN2020102593 W CN 2020102593W WO 2021022991 A1 WO2021022991 A1 WO 2021022991A1
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- cell
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/12—Detection or prevention of fraud
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/12—Detection or prevention of fraud
- H04W12/121—Wireless intrusion detection systems [WIDS]; Wireless intrusion prevention systems [WIPS]
- H04W12/122—Counter-measures against attacks; Protection against rogue devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
- H04J11/0073—Acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
- H04J11/0076—Acquisition of secondary synchronisation channel, e.g. detection of cell-ID group
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
- H04J11/0079—Acquisition of downlink reference signals, e.g. detection of cell-ID
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
- H04J11/0086—Search parameters, e.g. search strategy, accumulation length, range of search, thresholds
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
Definitions
- This application relates to the field of communication, and more specifically, to a method and device for communication.
- the terminal device may measure the cell under the pseudo base station and report the measurement result of the pseudo cell to the serving base station. After the serving base station makes a handover decision based on the measurement result, the terminal device may be handed over to the pseudo cell, resulting in handover failure, thereby causing service interruption of the terminal device and reducing the service experience of the terminal device.
- the prior art takes a long time to identify the pseudo base station. Therefore, it is urgent to propose a method to improve the efficiency of identifying pseudo base stations.
- the present application provides a method and device for communication, which help improve the efficiency of identifying pseudo base stations.
- a method for communication including:
- the terminal device receives the configuration information from the first network device; then, according to the configuration information, the terminal device measures the channel state information reference signal CSI-RS and the synchronization signal block SSB sent by the first cell; the terminal device determines The measurement result of the CSI-RS of the first cell and the measurement result of the SSB satisfy a preset condition; finally, the terminal device sends a first report to the first network device, and the first report includes the first report Identification information of a cell. In this way, the terminal device simultaneously measures the CSI-RS and SSB sent by the first cell, and reports the first report to the first network device when the CSI-RS measurement result and the SSB measurement result preset conditions are met, which helps The first network device identifies the pseudo base station.
- the terminal device simultaneously measures the CSI-RS and SSB sent by the first cell, and reports the first report to the first network device when the CSI-RS measurement result and the SSB measurement result preset conditions are met, which helps The first network device identifies the pseudo base station.
- the first report further includes the CSI-RS measurement result and/or the SSB measurement result of the first cell.
- the terminal device may report the measurement result of the CSI-RS and/or the measurement result of the SSB to the first network device, so that the first network device can identify the pseudo base station in combination with the measurement result.
- the measurement result of the CSI-RS and the measurement result of the SSB satisfy a preset condition, including: the difference between the measurement value of the CSI-RS and the measurement value of the SSB satisfies a difference threshold.
- the configuration information includes the difference threshold. Therefore, the terminal device can obtain the difference threshold through the configuration information.
- the method further includes:
- the terminal device receives system information from the first network device, where the system information includes the difference threshold. Therefore, the terminal device can obtain the difference threshold through the system information.
- the measurement result of the CSI-RS and the measurement result of the SSB satisfy a preset condition, including:
- the measured value of the SSB meets the first quality threshold; the measured value of the CSI-RS meets the second quality threshold. Therefore, the difference between the measured value of the SSB and the measured value of the CSI-RS may not be compared. If the measured value of the SSB and the measured value of the CSI-RS meet the respective quality thresholds, it can also be considered that the preset condition is satisfied. For example, the SSB is greater than the first quality threshold, and the CSI-RS is less than the second quality threshold.
- the configuration information includes the first quality threshold and the second quality threshold. Therefore, the terminal device can obtain the first quality threshold and the second quality threshold through configuration information.
- the method further includes: the terminal device receives system information from the first network device, the first quality threshold and the second quality threshold of the system information. Therefore, the terminal device can obtain the first quality threshold and the second quality threshold through system information.
- the measurement value is any one of the following:
- Received signal code power RSCP reference signal received power RSRP, reference signal received quality RSRQ, signal to noise ratio SNR, signal to interference noise ratio SINR, reference signal strength indicator RSSI.
- the type of the measurement value of the CSI-RS is the same as the type of the measurement value of the SSB.
- a method for communication including:
- the first network device sends configuration information to the terminal device, and the configuration information is used to configure the terminal device to measure the channel state information reference signal CSI-RS and the synchronization signal block SSB sent by the first cell; then, the first The network device receives a first report from the terminal device, the first report includes the identification information of the first cell, and the measurement result of the CSI-RS of the first cell and the measurement result of the SSB satisfy Pre-conditions. In this way, the first network device can obtain the identification information of the first cell whose measurement result meets the preset condition, and thus can perform identification based on the identification information of the first cell.
- the first report further includes a measurement result of the CSI-RS of the first cell and a measurement result of the SSB.
- the first network device may make a further judgment based on the measurement result of the CSI-RS and the measurement result of the SSB.
- the method further includes:
- the first network device determines that the second network device corresponding to the first cell is a pseudo base station.
- the first network device uses the first report to determine that the second network device corresponding to the first cell is a pseudo base station, so that the pseudo base station can be effectively identified.
- the measurement result of the CSI-RS and the measurement result of the SSB satisfy a preset condition, including: the difference between the measurement value of the CSI-RS and the measurement value of the SSB satisfies a difference threshold.
- the configuration information includes the difference threshold. Therefore, the first network device can send the difference threshold to the terminal device through the configuration information.
- the method further includes: the first network device sending system information, where the system information includes the difference threshold. Therefore, the first network device can send the difference threshold to the terminal device through the system information.
- the measurement result of the CSI-RS and the measurement result of the SSB satisfy a preset condition, including:
- the measured value of the SSB meets the first quality threshold; the measured value of the CSI-RS meets the second quality threshold.
- the measured value of the SSB is greater than the first quality threshold, and the measured value of the CSI-RS is less than the second quality threshold.
- the configuration information includes the first quality threshold and the second quality threshold. Therefore, the first network device may send the first quality threshold and the second quality threshold to the terminal device through configuration information.
- the method further includes:
- the first network device sends system information, where the system information includes the first quality threshold and the second quality threshold. Therefore, the first network device may send the first quality threshold and the second quality threshold to the terminal device through system information.
- the measured value is any one of the following:
- Received signal code power RSCP reference signal received power RSRP, reference signal received quality RSRQ, signal to noise ratio SNR, signal to interference noise ratio SINR, reference signal strength indicator RSSI.
- the type of the measurement value of the CSI-RS is the same as the type of the measurement value of the SSB.
- the method further includes: the first network device receives CSI-RS configuration information from a third network device. Therefore, the first network device may also receive the CSI-RS configuration information sent by the third network device, so as to send the CSI-RS configuration information to the terminal device.
- a method for communication including:
- the terminal device receives a first message from the first network device, the first message is used to instruct the terminal device to switch to the target cell; then, the terminal device determines that a connection failure occurs; the terminal device determines the indication information, the indication The information is used by the first network device to determine the type of the measurement result of the cell measured by the terminal device, and the type of the measurement result includes the measurement result type based on the channel state information reference signal CSI-RS or the measurement based on the synchronization signal block SSB Result type; finally, the terminal device sends the instruction information to the first network device, so as to assist the first network device in identifying the RLF report according to the instruction information.
- the terminal device sends the instruction information to the first network device, so as to assist the first network device in identifying the RLF report according to the instruction information.
- the sending of the indication information by the terminal device to the first network device includes:
- the terminal device sends the instruction information to the first network device through a second network device, and the second network device is a serving network device of the terminal device. Therefore, the terminal device may send the instruction information to the second network device, and then the second network device sends the instruction information to the first network device.
- the sending of the indication information by the terminal device to the first network device through the second network device includes:
- the terminal device sends the instruction information to the first network device through the second network device and the third network device, and the third network device is a network device to which the target cell belongs to which the connection fails. Therefore, the terminal device may send the instruction information to the second network device, then the second network device sends the instruction information to the third network device, and finally the third network device sends the instruction letter to the first network device.
- the indication information is carried in a mobile robustness optimization MRO report or a radio link failure RLF report.
- the RLF report further includes location information and/or failure type of the cell handover failure of the terminal device, where the failure type includes handover failure HOF and/or radio link failure RLF.
- a method for communication including:
- the first network device sends a first message to the terminal device, and the first message is used to indicate that the terminal device switches to the target cell; then, the first network device receives the instruction information, which is used to determine the terminal
- the type of the measurement result of the cell measured by the device where the type of the measurement result includes a CSI-RS-based measurement result type or an SSB-based measurement result type. In this way, the first network device can identify the RLF report according to the instruction information.
- the method further includes:
- the first network device recognizes the RLF report according to the instruction information.
- the measurement result of the cell is based on the measurement result of the SSB; wherein the first network device recognizes the RLF report according to the indication information, including: the first network device performs handover according to the terminal device Location information and/or failure type of the cell failure, identifying the RLF report, and the failure type including handover failure HOF and/or radio link failure RLF.
- the first network device if the measurement result of the cell is based on the measurement result of the SSB, the first network device also needs to further determine the RLF report in combination with the location information and/or the failure type.
- the measurement result of the cell is a measurement result based on CSI-RS; wherein, the first network device identifies the RLF report according to the indication information, including: the first network device determines the RLF report It is: a report generated when the terminal device fails to switch to the target cell.
- the first network device can recognize that the RLF report is a report generated when handover to the target cell fails, rather than a report generated when handover fails due to a pseudo base station.
- the receiving instruction information by the first network device includes:
- the first network device receives the instruction information from the terminal device.
- the first network device may directly receive the instruction information sent by the terminal device without forwarding by other network devices.
- the receiving instruction information by the first network device includes:
- the first network device receives the instruction information from a second network device, the second network device is a serving network device of the terminal device, and the instruction information is sent by the terminal device to the second network equipment;
- the first network device receives the instruction information from a third network device, where the instruction information is sent by the second network device to the third network device, and the second network device is the A serving network device of a terminal device, and the third network device is a network device that has a connection failure to which the target cell belongs.
- the first network device may receive the instruction information forwarded by other network devices instead of directly sending it by the terminal device.
- the indication information is carried in the RLF report.
- the RLF report further includes location information and/or failure type of the cell handover failure of the terminal device, where the failure type includes handover failure HOF and/or radio link failure RLF.
- a device for communication includes a module for executing the method in the first aspect or any possible implementation of the first aspect; or, including a module for executing the third Aspect or the module of the method in any possible implementation of the third aspect.
- an apparatus for communication includes a module for executing the method in the second aspect or any possible implementation of the second aspect; or, including a module for executing the fourth Aspect or the module of the method in any possible implementation of the fourth aspect.
- a device for communication including a processor and an interface circuit.
- the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to or from the processor.
- the signal is sent to another communication device other than the communication device, and the processor is used to implement the foregoing first aspect or any possible implementation method of the first aspect through logic circuits or execution code instructions, or the processor
- a logic circuit or an execution code instruction is used to implement the foregoing third aspect or the method in any possible implementation manner of the third aspect.
- a device for communication including a processor and an interface circuit.
- the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or from the processor.
- the signal of the processor is sent to other communication devices other than the communication device, and the processor is used to implement the method in the foregoing second aspect or any possible implementation manner of the second aspect through logic circuits or executing code instructions, or the processing
- the processor is used to implement the foregoing fourth aspect or any possible implementation method of the fourth aspect through logic circuits or execution code instructions.
- a computer-readable storage medium stores a computer program or instruction.
- the computer program or instruction When the computer program or instruction is executed, the first aspect or any possibility of the first aspect is realized.
- a computer-readable storage medium stores a computer program or instruction.
- the computer program or instruction When the computer program or instruction is executed, the second aspect or any possibility of the second aspect is realized.
- a computer program product containing instructions that, when the instructions are executed, implement the method in the first aspect or any possible implementation of the first aspect, or implement the third aspect or the first aspect mentioned above.
- the method in any possible implementation of the three aspects.
- the twelfth aspect provides a computer program product containing instructions that, when the instructions are executed, implement the second aspect or any possible implementation method of the second aspect, or implement the fourth aspect or the first Any of the four possible implementation methods.
- a communication chip in which instructions are stored, which when run on a computer device, cause the communication chip to execute any possible implementation manner of any one of the first to fourth aspects above Method in.
- a communication system which includes the communication device of the aforementioned fifth aspect and the communication device of the sixth aspect.
- a communication system which includes the communication device of the seventh aspect and the communication device of the eighth aspect.
- Figure 1 is a schematic diagram of a system architecture to which an embodiment of the present application is applied;
- Figure 2 is a schematic diagram of a scenario where pseudo base stations exist
- Fig. 3 is a schematic interaction diagram of a method for communication according to an embodiment of the present application.
- Fig. 4 is a schematic diagram of an example of applying an embodiment of the present application.
- Fig. 5 is a schematic interaction diagram of a communication method according to another embodiment of the present application.
- Figure 6 is a schematic diagram of an example of a pseudo base station scenario
- FIG. 7 is a schematic diagram of an example of applying another embodiment of the present application.
- FIG. 8 is a schematic diagram of a method for detecting a pseudo base station applying another embodiment of the present application.
- FIG. 9 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
- FIG. 10 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
- FIG. 11 is a schematic structural diagram of a network device provided by an embodiment of the present application.
- multiple can be understood as “at least two”; “multiple” can be understood as “at least two”.
- LTE long term evolution
- NR new radio
- FIG. 1 is a schematic diagram of the architecture of a mobile communication system applied in an embodiment of the present application.
- the mobile communication system includes a core network device 110, a wireless access network device 120, and at least one terminal device (the terminal device 130 and the terminal device 140 in FIG. 1).
- the terminal device is connected to the wireless access network device in a wireless manner
- the wireless access network device is connected to the core network device in a wireless or wired manner.
- the core network device and the wireless access network device can be separate and different physical devices, or they can integrate the functions of the core network device and the logical function of the wireless access network device on the same physical device, or it can be a physical device It integrates the functions of part of the core network equipment and part of the wireless access network equipment.
- the terminal device can be a fixed location or movable.
- Fig. 1 is only a schematic diagram.
- the communication system may also include other network equipment, such as wireless relay equipment and wireless backhaul equipment, which are not shown in Fig. 1.
- the embodiments of the present application do not limit the number of core network equipment, radio access network equipment, and terminal equipment included in the mobile communication system.
- Radio access network (RAN) equipment is the access equipment that terminal equipment accesses to the mobile communication system in a wireless manner. It can be a base station NodeB, an evolved NodeB (eNB), and a 5G mobile communication system.
- gNB next generation NodeB
- the transmission point the base station in the future mobile communication system or the access node in the wireless fidelity (Wi-Fi) system, the base station in the 5G system or A set of antenna panels (including multiple antenna panels), or, it can also be a network node that forms a gNB or transmission point, such as a baseband unit (BBU), or a distributed unit (DU), or, Centralized unit (CU), or centralized unit control plane (CU-CP) and centralized unit user plane (CU-UP), etc.
- BBU baseband unit
- DU distributed unit
- CU Centralized unit
- CU-CP Centralized unit
- CU-CP Centralized unit
- CU-CP centralized unit control plane
- CU-UP centralized unit user plane
- gNB may include CU and DU.
- One CU can be connected to one DU, or multiple DUs can share one CU, which can save costs and facilitate network expansion.
- CU implements part of the functions of gNB, and DU implements part of the functions of gNB.
- the CU is responsible for processing non-real-time protocols and services to realize the functions of the radio resource control (radio resource control, RRC) layer and the packet data convergence protocol (packet data convergence protocol, PDCP) layer.
- RRC radio resource control
- PDCP packet data convergence protocol
- the DU is responsible for processing the physical layer protocol and real-time services to realize the functions of the radio link control (RLC) layer, media access control (MAC) layer, and physical (PHY) layer.
- RLC radio link control
- MAC media access control
- PHY physical layer
- CU and DU are connected through F1 interface.
- CU stands for gNB connected to the core network through the Ng interface.
- the centralized unit CU can also be divided into a control plane (CU-CP) and a user plane (CU-UP).
- CU-CP is responsible for the control plane function, which mainly includes RRC and packet data convergence protocol control plane (packet data convergence protocol control, PDCP-C).
- PDCP-C packet data convergence protocol control
- PDCP-C packet data convergence protocol control
- PDCP-C packet data convergence protocol control
- PDCP-C is mainly responsible for at least one function such as encryption and decryption of control plane data, integrity protection, and data transmission.
- CU-UP is responsible for user plane functions, and mainly includes service data adaptation protocol (SDAP) and packet data convergence protocol user plane (packet data convergence protocol user, PDCP-U).
- SDAP service data adaptation protocol
- PDCP-U packet data convergence protocol user
- SDAP is mainly responsible for processing the data of the core network and mapping the flow to the bearer.
- PDCP-U is mainly responsible for at least one function of data plane encryption and decryption, integrity protection, header compression, serial number maintenance, and data transmission.
- CU-CP and CU-UP are connected through E1 interface.
- CU-CP represents that gNB is connected to the core network through the Ng interface.
- CU-UP is connected to DU through F1-U (user plane).
- F1-C control plane
- F1-U user plane
- PDCP-C is also in CU-UP.
- the gNB may also include an active antenna unit (AAU).
- AAU realizes some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by DU , Or, sent by DU+AAU.
- the network device may be a device including one or more of a CU node, a DU node, a CU-CP node, a CU-UP node, and an AAU node.
- the CU can be used as a network device in an access network, or as a network device in a core network (core network, CN), which is not limited in this application.
- a terminal device may also be called a terminal, a user equipment (UE), a mobile station (mobile station, MS), a mobile terminal (mobile terminal, MT), and so on.
- the terminal equipment can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial control (industrial control) ), wireless terminals in self-driving (self-driving), wireless terminals in remote medical surgery, wireless terminals in smart grid, and wireless terminals in transportation safety (transportation safety) Terminal, wireless terminal in smart city, wireless terminal in smart home, etc.
- the embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal device.
- Wireless access network equipment and terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on airborne aircraft, balloons, and satellites.
- the embodiments of the present application do not limit the application scenarios of wireless access network equipment and terminal equipment.
- the embodiments of the present application may be applicable to downlink signal transmission, may also be applicable to uplink signal transmission, and may also be applicable to device-to-device (D2D) signal transmission.
- the sending device is a wireless access network device, and the corresponding receiving device is a terminal device.
- the sending device is a terminal device, and the corresponding receiving device is a wireless access network device.
- D2D signal transmission the sending device is a terminal device, and the corresponding receiving device is also a terminal device.
- the embodiment of the present application does not limit the signal transmission direction.
- Communication between wireless access network equipment and terminal equipment, as well as between terminal equipment and terminal equipment, can communicate through licensed spectrum, or communicate through unlicensed spectrum, or through licensed spectrum and free spectrum at the same time.
- Authorize spectrum for communication Communication between wireless access network equipment and terminal equipment, as well as between terminal equipment and terminal equipment, can communicate through the frequency spectrum below 6 gigahertz (gigahertz, GHz), or through the frequency spectrum above 6G, and can also use below 6G at the same time
- the frequency spectrum and the frequency spectrum above 6G communicate.
- the embodiment of the present application does not limit the spectrum resource used between the radio access network device and the terminal device.
- the terminal device or network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
- the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
- the operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems, or windows operating systems.
- the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
- the embodiments of the present application do not specifically limit the specific structure of the execution subject of the methods provided in the embodiments of the present application, as long as the program that records the codes of the methods provided in the embodiments of the present application can be executed according to the embodiments of the present application.
- the method only needs to communicate.
- the execution subject of the method provided in the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call and execute the program.
- computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CDs), digital versatile discs (digital versatile discs, DVDs) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
- magnetic storage devices for example, hard disks, floppy disks, or tapes, etc.
- optical disks for example, compact discs (CDs), digital versatile discs (digital versatile discs, DVDs) Etc.
- smart cards and flash memory devices for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.
- various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
- the term "machine-readable medium” may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
- terminal equipment can perform measurements based on synchronization signal/physical broadcast channel block (synchronization signal/physical broadcast channel, SSB).
- the cell can send SSB; the terminal device can measure the cell according to the received SSB.
- the SSB is sent by broadcast, and its own security protection is poor, it is easy to copy, so it is easy to be copied by a fake base station and used for disguise.
- Figure 2 shows a schematic diagram of a scenario where there is a pseudo base station. As shown in Figure 2, the pseudo base station C will copy the SSB information sent by the cell B (which can be referred to as the real cell) under the real base station B.
- the source base station A configures the UE to measure the SSB of the base station B
- the UE located in the overlapping coverage area of the base station A and the pseudo base station C may measure the SSB sent by the pseudo cell under the pseudo base station C and report the measurement report to the base station A .
- the pseudo base station is a device that is not authorized by the network device, so an interface between the network device cannot be established between the pseudo base station and the real network device.
- the pseudo base station cannot interact with the real base station based on the X2/Xn port; the pseudo base station cannot interact with the core network equipment based on the S1/NG interface; if the pseudo base station is DU, the pseudo base station and the real base station CU cannot be based on the F1 interface Conduct information exchange.
- the channel-state information reference signal (CSI-RS) is configured to terminal equipment through dedicated signaling, and the signal design is complicated, so it generally cannot be copied by a pseudo base station.
- the source base station can configure the terminal equipment to measure the CSI-RS of the cell under the target base station and make a handover decision based on the CSI-RS measurement report.
- This method requires multiple target base stations to send CSI-RS , Resource overhead is large.
- the base station can configure the terminal device to measure the channel state information reference signal CSI-RS of the target cell again. This method of avoiding pseudo base stations takes too long and is likely to cause handover failure.
- the communication method of the embodiment of the present application can pre-identify the pseudo base station and improve the efficiency of handover.
- the mobility robustness optimization (MRO) mechanism uses the terminal device to record and report the parameters during the mobility failure process (such as the parameters and time information of each cell experienced during the mobility failure process) to the network equipment, so that The network equipment can determine the cell where the failure occurs, so as to better adjust the handover related parameters.
- MRO mobility robustness optimization
- the record report of the MRO (which may be referred to as a radio link failure (RLF) report) may include at least one of the following:
- Failed Primary Cell Identifier (failedPcellId): The terminal device detects the information of the primary cell where the connection failed, or the information of the target primary cell where the handover failed.
- the failure report may not include the failed primary cell identifier (failedPcellId), but include the failed cell identifier (failedCellId).
- failed cell identifier refers to the information of the cell where the terminal device detects the connection failure, or the information of the target cell where the handover fails, which is not limited in the embodiment of the present application.
- connection failure type may be RLF or handover failure (HOF).
- Previous primary cell identifier (previousPcellId): the previous primary cell information of the last time the terminal device received the handover command.
- the failure report may not include the previous primary cell identifier (previousPcellId), but include the previous cell identifier (previousCellId).
- the previous cell identifier is the previous cell information where the terminal device received the handover command last time, which is not limited in the embodiment of the present application.
- Reestablishment CellId (reestablishmentCellId): cell information that attempts to reestablish after connection failure.
- Connection failure time the time from the last handover (HO) command to the connection failure.
- Time after failure the length of time to start recording when the connection fails. Generally refers to the time from the connection failure to the reporting of the failure report.
- the failure report may be an RLF report (RLF report), which is not limited in the embodiment of the present application.
- RLF report RLF report
- the cell identifier may include at least one of the cell global identifier (CGI) of the cell, the physical cell identifier (PCI), the cell frequency, and the cell identifier (cell identifier).
- CGI cell global identifier
- PCI physical cell identifier
- cell frequency cell frequency
- cell identifier cell identifier
- the cell information mentioned in various places above may also include at least one of a cell quality measurement result, frequency point information, and beam identification.
- the measurement result of the cell quality includes the downlink signal quality measured by the terminal equipment.
- the downlink signal quality can be characterized by one or more of the following indicators: received signal code power (received signal code power, RSCP), reference signal received power (reference signal receiving power, RSRP), reference signal received quality (reference signal receiving quality (RSRQ), signal noise ratio (signal noise ratio, SNR), signal to interference plus noise ratio (SINR), reference signal strength indication (RSSI) or other applications It is an indicator of signal quality.
- RSSI, RSRP, and RSRQ are cell measurement parameters, which are rough cell signal estimates.
- RSRP is the arithmetic average of the received power of the reference signal in the measurement bandwidth;
- RSSI is the arithmetic average of the total power (useful signal energy + interference + noise) of all RBs in the measurement bandwidth;
- RSRQ N*RSRP/RSSI; SINR is used for accurate evaluation
- the parameters of the terminal equipment's demodulation capability take into account parameters such as demodulation and decoding.
- the CSI-RS configuration information may be the identification or resource of the CSI-RS, and the signal position of the measured CSI-RS may be determined according to the CSI-RS configuration information.
- FIG. 3 shows a schematic interaction diagram of a method 300 for communication according to an embodiment of the present application. As shown in FIG. 3, the method 300 includes:
- the first network device sends configuration information to the terminal device, where the configuration information is used to configure the terminal device to measure the channel state information reference signal CSI-RS and the synchronization signal block SSB sent by the first cell.
- the terminal device receives the configuration information from the first network device.
- the first cell is a cell under the second network device.
- the second network device is a network device different from the first network device.
- the first network device may introduce a new measurement event, which is the simultaneous measurement of CSI-RS and SSB.
- the measurement event is named A7
- the configuration information of the measurement event is sent to the terminal device. That is, the configuration information sent by the first network device to the terminal device is used to configure the terminal device to simultaneously measure the CSI-RS and SSB sent by the first cell.
- the first network device may be the source network device.
- the terminal device measures the channel state information reference signal CSI-RS and the synchronization signal block SSB sent by the first cell according to the configuration information.
- the terminal device can simultaneously measure the CSI-RS and SSB sent by the first cell. If the second network device is a pseudo base station, the cell under the second network device is less likely to send CSI-RS. The terminal device can determine whether the measured CSI-RS measurement result and the SSB measurement result meet the preset conditions.
- the terminal device determines that the measurement result of the CSI-RS of the first cell and the measurement result of the SSB satisfy a preset condition.
- the preset condition may be predefined or configured by the first network device, which is not limited.
- the measurement result of the CSI-RS measured by the terminal device and the measurement result of the SSB satisfy a preset condition, including: the difference between the measured value of the CSI-RS and the measured value of the SSB satisfies the difference Value threshold.
- the difference between the measured value of CSI-RS and the measured value of SSB is greater than the difference threshold. It is understandable that the measurement value type of CSI-RS is the same as the measurement value type of SSB.
- the specific form of the measurement result may be a measurement value, or it may be a non-quantitative measurement result, which is not limited.
- the measurement value type can be any of the following: received signal code power RSCP, reference signal received power RSRP, reference signal received quality RSRQ, signal-to-noise ratio SNR, signal and interference noise Ratio SINR and reference signal strength indicate RSSI.
- the difference between the RSRP value of the CSI-RS and the RSRP value of the SSB satisfies the RSRP difference threshold.
- the type of measurement value used by the terminal device may be configured by the first network device, or may be predefined by the protocol, which is not limited.
- the first network device instructs the terminal device which measurement value type to use through the measurement value type indication information.
- the measurement value type indication information may be carried in the configuration information.
- the difference between the measured value of CSI-RS and the measured value of SSB satisfies the difference threshold may be that the difference obtained by subtracting the measured value of SSB from the measured value of CSI-RS satisfies the difference threshold; or It may be that the difference obtained by subtracting the measured value of the CSI-RS from the measured value of the SSB satisfies the difference threshold.
- difference threshold may be predefined by the protocol or configured by the first network device, which is not specifically limited.
- the configuration information may include a difference threshold.
- the terminal device can obtain the difference threshold from the configuration information.
- the configuration information may further include at least one measurement parameter such as hysteresis, trigger time, and measurement event identification.
- the method 300 further includes: the first network device sends system information to the terminal device, and the system information includes the difference threshold.
- the difference threshold can also be carried in the system information, which can save the signaling overhead of the configuration information.
- the system information may also include at least one measurement parameter such as hysteresis, trigger time, and measurement event identification.
- the “hysteresis” parameter is generally the amplitude hysteresis of the quality, which is used to reduce the frequent removal and triggering of the cell handover evaluation caused by the fluctuation of the wireless signal, and reduce the ping-pong handover and misjudgment.
- Trigger time means that when a measurement event meets the trigger condition, it is not reported immediately, but when the event has been within the trigger time and the trigger threshold has been met, the event measurement report is triggered to be reported.
- the "trigger time” parameter can reduce incident reporting of accidental triggers, and reduce the average number of handovers and the number of false handovers to prevent unnecessary handovers. It should be understood that the meaning of "hysteresis” and “trigger time” is briefly introduced here, and the specific meaning can be referred to the existing explanation.
- the measurement result of the CSI-RS measured by the terminal device and the measurement result of the SSB satisfy a preset condition, including: the measurement value of the SSB meets the first quality threshold; the measurement of the CSI-RS The value meets the second quality threshold.
- the measured value of the SSB is greater than the first quality threshold, and the measured value of the CSI-RS is less than the second quality threshold.
- first quality threshold and the second quality threshold may be predefined by the protocol, or may be configured by the first network device, which is not specifically limited.
- the configuration information may include the first quality threshold and the second quality threshold. That is to say, after receiving the configuration information, the terminal device can also obtain the first quality threshold and the second quality threshold.
- the configuration information may further include at least one measurement parameter such as hysteresis, trigger time, and measurement event identification.
- the method 300 further includes: the first network device sends system information to the terminal device, and the system information includes the first quality threshold and the second quality threshold. That is, the first quality threshold and the second quality threshold may also be carried in the system information, so that the signaling overhead of the configuration information can be saved.
- the system information may also include at least one measurement parameter such as hysteresis, trigger time, and measurement event identification.
- the configuration information may include the first quality threshold and the first offset, but not the second quality threshold.
- the terminal device may determine the second quality threshold based on the first quality threshold and the first offset. For example, the first quality threshold plus or minus the first offset can obtain the second quality threshold.
- the first quality threshold and the first offset can also be carried in the system information, which can save the signaling overhead of the configuration information.
- the configuration information may include the second quality threshold and the second offset, but not the first quality threshold.
- the terminal device can determine the first quality threshold based on the second quality threshold and the second offset. For example, the second quality threshold plus or minus the second offset can obtain the first quality threshold.
- the second quality threshold and the second offset can also be carried in the system information, which can save the signaling overhead of the configuration information.
- the configuration information of the embodiment of the present application may be carried in system information. It should be understood that the relevant description of the configuration information can refer to the above description, and for brevity, the details are not repeated here.
- the terminal device sends a first report to the first network device, where the first report includes the identification information of the first cell.
- the first network device receives the first report from the terminal device.
- the first report may be a measurement report.
- the first report also includes the CSI-RS measurement result and/or the SSB measurement result of the first cell.
- the first report also includes location information of the terminal device.
- the location information may be used to indicate the terminal device to determine the location of the first report.
- the terminal device simultaneously measures the CSI-RS and SSB of the cell, and when the measurement result of the CSI-RS and the measurement result of the SSB satisfy the preset condition, the terminal device determines the first report.
- the terminal device may send a first report to the first network device to assist the first network device in identifying the pseudo base station.
- the first network device can identify the pseudo base station earlier.
- the method of the embodiment of the present application can avoid the handover failure caused by the terminal device handing over to the pseudo base station, which helps to improve the service experience of the terminal device.
- the terminal device sends the first report to the first network device.
- the terminal device sends the first report to the first network device through a cell under the first network device.
- the terminal device sends a first report to other network devices through a cell under the other network device, and the other network device sends a second report to the first network device, where the second report may be the first report , Or it can be a modification of the first report.
- the first report needs to carry the identification information of the second cell (the network device to which the second cell belongs is the first network device) for other network devices to determine the first network device to which the second cell belongs. Internet equipment.
- the terminal device sending the first report to the first network device may also include: the terminal device may send first report indication information to the first network device, and the first report indication information is used to indicate that the first report exists on the terminal device .
- the first network device sends first report reporting instruction information to the terminal device, where the first report reporting instruction information is used to instruct the terminal device to report the first report.
- the terminal device sends the first report to the first network device according to the first report reporting instruction information.
- the first network device determines that there is a pseudo base station according to the first report, and the pseudo base station has copied the SSB signal and cell identification information of the real cell.
- the terminal device determines the first report only when the measurement result of the CSI-RS of the first cell (pseudo cell) and the measurement result of the SSB satisfy the preset condition, and reports the first report to the first network device.
- the first network device considers the SSB signal and cell identification information of the real cell to be copied by the pseudo base station based on the identification information of the first cell; if the first report includes not only the first cell
- the identification information also includes the measurement result of the CSI-RS of the first cell and the measurement result of the SSB, so the first network device can make a further judgment by combining the measurement result of the CSI-RS of the first cell and the measurement result of the SSB. For example, the first network device determines that the measurement result of the CSI-RS of the first cell and the measurement result of the SSB satisfy the preset condition, and then determines that the real cell is copied by the pseudo base station. If the first report also includes location information, the first network device may further determine the location range information of the pseudo base station that has copied the real cell.
- the method 300 further includes: the first network device receives CSI-RS configuration information from the third network device.
- the first network device is the source base station
- the third network device is the target base station.
- the source base station and the target base station can exchange CSI-RS configuration.
- the first network device (or the second network device or the third network device) in the embodiment of the present application may be any of the network devices described above, for example, may be DU, CU, CU-CP Wait, there is no specific limitation on this.
- Fig. 4 is an example in which the terminal device is the UE, the first network device is the source base station A, the second network device is the pseudo base station C, and the target base station B of the third network device is taken as an example. It is understandable that the embodiment of the present application takes the network device as a base station as an example for description, and is not limited to the base station. For the specific form of the network device, refer to the above description, for example, DU, CU, CU-CP, etc.
- the source base station A sends a first request to the target base station B.
- the first request is used to request the CSI-RS configuration information of the first cell under the target base station.
- the first request is a handover request (handover request) or a measurement configuration request message.
- the target base station B sends a first confirmation message to the source base station A.
- the first confirmation message includes the CSI-RS configuration information of the first cell under the target base station B.
- the first confirmation message is a handover request ACK.
- the first confirmation message is a measurement configuration request confirmation message.
- the source base station A sends configuration information to the UE.
- the configuration information is used to instruct the UE to measure the CSI-RS and SSB of the first cell.
- the configuration information is carried in an RRC reconfiguration message or an RRC connection reconfiguration message.
- the configuration information includes a difference threshold.
- the embodiment of the present application is described by taking the configuration information including the difference threshold as an example.
- the UE measures the SSB and CSI-RS of the first cell (under base station C).
- the UE determines that the difference between the measured value of the SSB and the measured value of the CSI-RS is greater than the difference threshold.
- base station C Since base station C is a pseudo base station, it copies the SSB configuration information of the real cell under target base station B, and sends the copied SSB signal according to the SSB configuration information, so the UE can measure the SSB signal of the first cell and determine the SSB measurement value .
- the pseudo base station C cannot or is difficult to copy the CSI-RS configuration information of the real cell under the target base station B, the pseudo base station C cannot send the CSI-RS signal or cannot send the CSI-RS signal exactly the same as the CSI-RS configuration information, so the UE
- the CSI-RS signal cannot be measured in the first cell, so the CSI-RS measurement value cannot be determined, or the UE can only measure part of the CSI-RS signal in the first cell, so that the UE can determine the CSI-RS measurement The value is low.
- the UE determines that the difference between the SSB measurement value of the first cell and the CSI-RS measurement value is greater than the difference threshold, the UE determines the first report.
- the UE sends the first report to the source base station A.
- the first report may be a measurement report (measure report).
- the measurement report includes the identification information of the first cell.
- the measurement report further includes the SSB measurement value and the CSR-RS measurement value of the first cell.
- the source base station A judges that there is a pseudo base station according to the first report.
- the base station C in this embodiment is a pseudo base station.
- the base station C copies the information of the real cell under the target base station B.
- steps 401 and 402 may be optional. That is, the source base station A may not exchange the CSI-RS configuration with the target base station B, and the CSI-RS configuration may be pre-defined by agreement.
- FIG. 4 is only to facilitate those skilled in the art to understand the embodiments of the present application, and is not intended to limit the embodiments of the present application to the specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes based on the example of FIG. 4, and such modifications or changes also fall within the scope of the embodiments of the present application.
- 3GPP has introduced a mobile robustness optimization MRO mechanism, which can record and report the parameters of the mobility failure process (such as the parameters and time information of each cell experienced during the mobility failure process) to the network equipment through the terminal equipment, so that The network equipment can determine the cell where the failure occurs, so as to better optimize the mobility parameters.
- the terminal device will also record the RLF report.
- the handover failure caused by the pseudo base station is not caused by unreasonable network mobility parameter settings.
- the network device cannot identify whether the RLF report is a handover failure triggered by a pseudo base station, and adjusts mobility parameters based on the RLF report, which may cause more handover failures in the network.
- this application proposes another embodiment to assist the network device in identifying whether the RLF report is caused by a pseudo base station.
- FIG. 5 shows a schematic interaction diagram of a method 500 for communication according to another embodiment of the present application. It is understandable that the embodiment of FIG. 5 can be implemented in combination with other embodiments of the present application (for example, the method of Figure 3 or Figure 4 above), or can be implemented independently of each other, which is not specifically limited.
- the method 500 includes:
- the first network device sends a first message to the terminal device, where the first message is used to instruct the terminal device to switch to the target cell.
- the terminal device receives the first message from the first network device.
- S520 The terminal device determines that a connection failure occurs.
- Connection failure includes two types: handover failure HOF and radio link failure RLF.
- HOF refers to the connection failure that occurs when the terminal device is not successfully handed over to the target cell, or the connection failure that occurs when the terminal device is handed over to the target cell.
- RLF refers to the connection failure that occurs after the terminal device successfully switches to the target cell.
- the terminal device cannot complete the handover with the network device to which the target cell belongs, and it is impossible to determine whether the network device to which the target cell belongs can unsecure the secured information sent by the terminal device, so it is impossible to determine whether the HOF is Caused by switching to a pseudo base station. Therefore, for the RLF report whose failure type is HOF, it is necessary to further determine whether the RLF report is recorded due to a connection failure during the handover to the real target cell.
- the terminal device has completed the handover with the target cell, that is, the network device to which the target cell belongs can unsecure the security-protected information sent by the terminal device, so it can prove that the network device to which the target cell belongs is a true base station . Therefore, the RLF reports whose failure type is RLF are all recorded due to a connection failure during the handover to the real target cell.
- the terminal device may be handed over to the pseudo base station, which leads to unsuccessful handover to the network equipment to which the target cell belongs, or it may also be that connection failure occurs during the handover to the target cell, which leads to unsuccessful handover to the target cell.
- the network equipment to which the cell belongs may be handed over to the pseudo base station, which leads to unsuccessful handover to the network equipment to which the target cell belongs, or it may also be that connection failure occurs during the handover to the target cell, which leads to unsuccessful handover to the target cell.
- the network equipment to which the cell belongs may be handed over to the pseudo base station, which leads to unsuccessful handover to the network equipment to which the target cell belongs, or it may also be that connection failure occurs during the handover to the target cell, which leads to unsuccessful handover to the target cell.
- the network equipment to which the cell belongs may be handed over to the pseudo base station, which leads to unsuccessful handover to the network equipment to which the target cell belongs, or it may also be that connection failure occurs during the handover to the target cell, which leads to unsuccessful handover to the
- the terminal device determines indication information, where the indication information is used by the first network device to determine the type of the measurement result of the cell (the cell may be the target cell or other cells) measured by the terminal device, and the type of the measurement result includes The measurement result type based on the channel state information reference signal CSI-RS or the measurement result type based on the synchronization signal block SSB.
- the terminal device executes step S530.
- the indication information is used by the first network device to determine the type of the measurement result of the cell carried in the measurement report sent by the terminal device to the first network device.
- the indication information is used by the first network device to determine the type of the measurement result of the cell where the terminal device triggers the measurement report.
- the terminal device specifies the terminal device to measure the SSB
- the terminal device when the measurement result of the cell measured by the terminal device meets a preset condition (for example, the SSB measurement value meets a certain threshold), the terminal device is triggered to send a measurement report to the first network device,
- the terminal device sends the measurement report (adding indication information to the measurement report)
- it can indicate to the first network device that the type of the measurement result that triggers the measurement report is SSB through the indication information.
- the terminal device For another example, if the first network device specifies the terminal device to measure CSI-RS, when the measurement result of the cell measured by the terminal device satisfies a preset condition (for example, the CSI-RS measurement value meets a certain threshold), the terminal device is triggered to report to the first network The device sends a measurement report.
- the terminal device sends the measurement report (instruction information is added to the measurement report), it can indicate to the first network device that the type of measurement result that triggers the measurement report is SSB through the instruction information.
- the indication information can be represented by 1 bit, and different values represent different types of measurement results. For example, when the value is 0, the representative measurement result type is the SSB-based measurement result type, and when the value is 1, the representative measurement result type is the CSI-RS-based measurement result type. Or, when the value is 1, the representative measurement result type is the SSB-based measurement result type, and when the value is 0, the representative measurement result type is the CSI-RS-based measurement result type.
- the indication information is represented by 1 bit, which directly indicates the type of measurement result.
- the measurement result type based on CSI-RS, or the measurement result type based on SSB is represented by 1 bit, which directly indicates the type of measurement result.
- whether the indication information exists can also be used to represent different measurement result types. For example, if the indication information exists, it means that the measurement result type is an SSB-based measurement result type. If the indication information does not exist, it means that the measurement result type is a CSI-RS-based measurement result type. For another example, if the indication information does not exist, it means that the measurement result type is an SSB-based measurement result type; if the indication information exists, it means that the measurement result type is a CSI-RS-based measurement result type.
- S540 The terminal device sends the instruction information to the first network device.
- the first network device receives the instruction information.
- the terminal device sends the instruction information to the first network device.
- the terminal device sends the instruction information to the first network device through a cell under the first network device.
- the terminal device sends the instruction information to other network devices through a cell under the other network device, and the other network device sends the instruction information to the first network device.
- the indication information can be carried in the MRO report, can also be carried in the radio link failure RLF report, and can also be carried in messages exchanged between other terminal equipment and network equipment, which is not limited.
- the indication information may be carried in the RLF report, so that the first network device can identify the RLF report based on the indication information.
- the RLF report is the report recorded by the terminal device in the MRO mechanism.
- the terminal device when the terminal device determines that a connection failure occurs, it determines the indication information by determining the indication information for the first network device to determine the type of the cell measurement result measured by the terminal device, and send the indication information to The first network device assists the first network device in judging whether the RLF report is: the RLF report recorded by the terminal device under handover failure caused by the pseudo base station based on the indication information.
- the method 500 further includes: the first network device recognizes the RLF report according to the indication information.
- the terminal device indicates the type of the measurement result through the indication information, for example, the type of the measurement result based on CSI-RS, or the type of measurement result based on SSB. Based on the type of the measurement result indicated by the indication information, the first network device can determine whether the RLF report is: the RLF report recorded by the terminal device during the connection failure during the handover process caused by the pseudo base station. In other words, after obtaining the indication information, the first network device may determine whether the RLF report needs to be ignored based on the indication information.
- the first network device determines that the RLF report reported by the terminal device is the RLF report recorded by the terminal device in the connection failure scenario caused by the pseudo base station, the first network device can ignore the RLF report and does not need to optimize the movement based on the RLF report sexual parameters. If the RLF report reported by the terminal device is the RLF report recorded by the terminal device after a connection failure occurs during handover to the real target cell, the first network device needs to optimize the mobility parameters according to the RLF report to ensure that the terminal device can successfully handover to the target cell Community.
- the first network device determines that the measurement result type is a CSI-RS-based measurement result type according to the indication information, it can be determined that the RLF report is a report recorded by the terminal device after a connection failure occurs when the terminal device switches to a real target cell. If the first network device determines that the measurement result type is the SSB-based measurement result type according to the indication information, the first network device cannot determine whether the RLF report is a report recorded by the terminal device in a connection failure scenario caused by a pseudo base station; optionally As an implementation manner, the first network device may ignore the RLF report.
- the first network device recognizes the RLF report according to the indication information, including: the first network device recognizes the RLF report according to the location information when the terminal device fails to switch and/or the failure type in the RLF report , Further identify the RLF report, the failure type includes handover failure HOF and/or radio link failure RLF.
- the first network device determines that the measurement result type is the CSI-RS-based measurement result type according to the indication information, and/or the connection failure type of the terminal device is RLF, the RLF report is switched to the real target cell
- the RLF report recorded by the terminal device after the connection failure occurs, the RLF report recorded after the handover to the real target cell and the connection failure occurs can be recorded as the "first type RLF report", the first type RLF report is valid, that is, the first type
- the network equipment needs to optimize mobility parameters based on the first type of RLF report.
- the first network device determines, according to the instruction information, that the measurement result type is the SSB-based measurement result type, and the connection failure type of the terminal device is HOF, because it cannot be determined whether the RLF report is handed over to the real target cell and the connection fails
- the RLF report recorded by the terminal equipment can be recorded as the "second type RLF report".
- the first network device can consider the second type RLF report invalid or ignore the second type RLF report, that is, not use the second type RLF report.
- the second type of RLF report optimizes mobility parameters.
- the first network device may further identify the validity of the second type of RLF report in combination with the location information.
- the first network device may determine the location range information according to the location information in the RLF report.
- the first network device may determine the first location range according to the location information in the RLF report, and if there is a first type of RLF report in the RLF report within the first location range or the handover is successful in the first location range, then The first network device can determine that the location information in the RLF report is valid in the second type RLF report within the first location range; if based on the location information in the RLF report, it is determined that the RLF report within the second location range does not have the first type RLF report If the report or both are RLF reports of the second type, the first network device may combine the location information in the RLF report to determine that the RLF report of the second type with the location information within the second location range is invalid.
- the first network device can combine the location information in the RLF report to determine that the second type of RLF report whose location information is within the second location range is invalid.
- the pseudo base station C copies the cell B (which can be called the real cell) under the (target) base station B, the copied pseudo cell B (the copied pseudo cell B is the cell C in Figure 6) and the real Cell B is the neighboring cell of cell A.
- the overlapping area between cell A and cell C under the pseudo base station C is denoted as area A
- the overlapping area between cell A and cell B is denoted as area B.
- the UE For the failure of the UE in area A, the UE records the RLF report; for the failure of the UE in the area B, the UE records the RLF report.
- the source base station A can identify the two RLF reports based on the information in the RLF report. If the indication information carried in the RLF report indicates that the type of measurement result is CSI-RS and/or the failure type is RLF, the source base station A considers the RLF report to be a valid report or a true report; if the indication information carried in the RLF report indicates the measurement result If the type is SSB, the source base station A will further identify the failure type reported by the UE.
- the source base station A cannot identify whether the RLF report is a report recorded by the terminal device after the connection failure occurs due to handover to the pseudo base station.
- the source base station A can ignore the RLF report whose measurement result type is SSB and the failure type is HOF; or, the source base station A can make further judgments in combination with the location information.
- the source base station A determines area A based on the location information, and determines that the measurement result type in the RLF report whose location information is within the range of area A is SSB, and the failure type is HOF, then The source base station A considers that the UE in area A is handed over to the pseudo base station C and the handover fails, so it ignores the RLF report whose location information is within the range of area A, that is, ignores the RLF report corresponding to area A; further, source base station A It is determined that there is no valid RLF report in area A and/or there is no scene of successful handover to base station B (that is, it is actually handed over to pseudo base station C), and the measurement result type of the RLF report in area A is SSB, And, if the failure types are all HOF, the source base station A thinks that the UE in area A is handed over to pseudo base station C as a handover failure, so it ignores the RLF report whose location
- the source base station A determines area B based on the location information, and determines that the measurement result type in at least two RLF reports whose location information is within the range of area B is SSB, and the failure type is both
- the source base station A considers that the UE in the area B has failed handover due to a connection failure, so the mobility parameters can be optimized based on the above-mentioned RLF report.
- the source base station A may consider that the location information in the RLF report is located within the area B The RLF report is valid.
- the terminal device may send the instruction information to the first network device through a cell under the first network device, or may forward the instruction information to the first network device through other network devices. It is understandable that the terminal device sends the instruction information to the first network device. As an implementation manner, the terminal device sends the instruction information to the first network device through a cell under the first network device. Or, as yet another implementation manner, the terminal device sends the instruction information to other network devices through the cell under the other network device, and then the other network device sends the instruction information to the first network device.
- the terminal device sends the instruction information to the first network device through a cell under the first network device, or may forward the instruction information to the first network device through other network devices. It is understandable that the terminal device sends the instruction information to the first network device. As an implementation manner, the terminal device sends the instruction information to the first network device through a cell under the first network device. Or, as yet another implementation manner, the terminal device sends the instruction information to other network devices through the cell under the other network device, and then the other network
- the terminal device sending the instruction information to the first network device includes: the terminal device sends the instruction information to the first network device through the second network device, and the second network device is a serving network device of the terminal device.
- the second network device and the first network device may be the same or different, which is not limited. If the first network device is different from the second network device, the terminal device may first send the indication information to the second network device.
- the second network device is a serving base station.
- the terminal device sending instruction information to the first network device includes: the terminal device sends the instruction information to the first network device through the second network device and the third network device, and the third network device is the target cell The network device to which the connection failed.
- the terminal device sends instruction information to the second network device; the second network device sends instruction information to the third network device; and the third network device sends instruction information to the first network device.
- the third network device is the network device that failed to connect.
- the terminal device may first send an RLF report to the second network device (for example, a serving base station), and the RLF report includes indication information.
- the second network device sends the indication information to the third network device (the network device to which the target cell belongs). For example, based on the received RLF report, the second network device determines that the cell under the third network device has failed to connect, then the second network device sends the RLF report to the third network device, and the RLF report includes the indication information.
- the third network device sends the instruction information to the first network device.
- the third network device determines based on the received RLF report that the handover failure is caused by the unreasonable handover parameter setting of the first network device, the third network device sends the indication information to the first network device.
- the instruction information can be carried in their respective interactive messages, and the embodiment of the present application does not limit the specific content of the interactive messages.
- each network device (the first network device, the second network device, or the third network device) in the embodiments of the present application can be any of the network devices described above, for example, can be DU, CU, CU-CP, etc., do not specifically limit this.
- FIG. 7 illustrates an example in which the terminal device is the UE, the first network device is the source base station A, the second network device is the target base station C, and the third network device is the target base station B. As shown in Figure 7, it includes:
- the source base station A sends a first command to the UE, where the first command is used to instruct the UE to switch to the target base station B.
- the first command may be an RRC reconfiguration message or an RRC connection reconfiguration message.
- a handover failure HOF occurs during the UE handover to the target base station B.
- the UE records an RLF report, and the RLF report includes indication information.
- the UE when the UE determines that the connection failure type is HOF, the UE carries the indication information in the RLF report.
- the UE attempts to re-establish a connection and sends an RLF report to the target base station C.
- the RLF report includes indication information.
- the target base station C may be the base station to which the cell where the connection is successfully reestablished belongs, or the base station to which other cells where the connection is established belong. It should be understood that the target base station C may be the source base station A, or the target base station B, or other base stations different from the source base station A and the target base station B. In FIG. 7, the target base station C is different from the source base station A and the target base station B as Examples are described.
- the source base station A may send an RLF indication to the target base station after receiving the RLF report including the indication information. Then the target base station B sends the HO report to the source base station A.
- the HO report includes an RLF report, and the RLF report includes indication information.
- the target base station C sends an RLF indication to the target base station B.
- the RLF indication includes an RLF report, and the RLF report includes indication information.
- the target base station B sends an HO report to the source base station A.
- the HO report includes an RLF report, and the RLF report includes indication information.
- the target base station C may directly send the HO report to the source base station A.
- the HO report includes an RLF report, and the RLF report includes indication information.
- the target base station C can directly send the HO report to the source base station A.
- FIG. 8 shows a schematic flow chart of a method 800 for detecting a pseudo base station according to another embodiment of the present application. It should be understood that the method shown in FIG. 8 can be used in combination with each of the above embodiments, or can be used independently, which is not specifically limited. For example, the method 800 and the method 500 can be used in combination, and the terminal device records the quality of the interference signal in the RLF report.
- the method 800 includes:
- S801 When the terminal device detects the RLF, it compares the interference signal quality with the cell signal quality.
- the terminal device If the interference signal quality and the cell signal quality meet preset conditions, the terminal device records the signal quality of the interference signal.
- the terminal device when it detects RLF, it can compare the interference signal quality with the cell signal quality. When the interference signal quality and the cell signal quality meet the preset conditions, the terminal device can record the signal quality of the interference signal Then, the signal quality of the interference signal is sent to the network device.
- This method helps the network equipment to identify the pseudo base station that only sends interference signals to interfere with the current cell of the terminal equipment. For example, the pseudo base station transmits high-power interference signals to interfere with the normal data of the terminal equipment, causing RLF in the terminal equipment. .
- the measurement type of interference signal quality is different from the measurement type of cell signal quality.
- the measurement type of interference signal quality may be any one of the following: RSSI, RSRQ, SINR; the measurement type of cell signal quality may be RSRP. It should be understood that the examples here are only for the understanding of those skilled in the art, and do not limit the embodiments of the present application.
- the measurement type of interference signal quality and the measurement type of cell signal quality can also be other measurement types, as long as the measurement of interference signal quality is satisfied.
- the type and the measurement type of the cell signal quality may be different.
- the interference signal quality and the cell signal quality satisfy preset conditions, including: the interference signal quality is higher than the first threshold, or the interference signal quality and the cell signal quality are higher than the second threshold.
- the first threshold and/or the second threshold may be configured by the network device, or may be predefined, which is not limited.
- the terminal device may record the interference signal quality in the RLF report.
- the terminal device sends an RLF report recording the quality of the interference signal to the network device.
- the network device After the network device receives the RLF report, it can be known that the cause of the RLF is too much interference, and can coordinate and manage the interference with neighboring network devices, and determine whether there is a pseudo base station.
- the RLF report may also include a cell identifier, which is used to indicate cell information corresponding to the interference signal quality.
- the cell identity please refer to the previous description. For brevity, it will not be repeated here.
- the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic.
- the various numerical numbers or serial numbers involved in the foregoing processes are only for easy distinction for description, and should not constitute any limitation on the implementation process of the embodiments of the present application.
- the communication method according to the embodiment of the present application is described in detail above with reference to FIGS. 1 to 8.
- the communication device according to the embodiment of the present application will be described below in conjunction with FIG. 9 to FIG. 11. It should be understood that the technical features described in the method embodiments are also applicable to the following device embodiments.
- FIG. 9 is a schematic block diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 9, the device 1000 may include a transceiver unit 1100 and a processing unit 1200.
- the communication device 1000 may correspond to the terminal device in the above method embodiment, for example, it may be a terminal device or a chip configured in the terminal device.
- the communication device 1000 may correspond to the terminal device in the method 300 or the method 500 according to the embodiment of the present application, and the communication device 1000 may include a unit for executing the method executed by the terminal device in the method 300 in FIG. 3, Or, execute the unit of the method executed by the terminal device in the method 500 in FIG. 5, or execute the unit of the method executed by the terminal device in the method 800 in FIG. 8.
- each unit in the communication device 1000 and other operations or functions described above are used to implement the corresponding process of the terminal device in the method 300 in FIG. 3, or, respectively, to implement the corresponding process of the terminal device in the method 500 in FIG. 5, or, In order to realize the corresponding process of the terminal device in the method 800 in FIG. 8 respectively.
- the transceiver unit 1100 and the processing unit 1200 may be used to:
- the transceiver unit 1100 is configured to receive configuration information from the first network device.
- the processing unit 1200 is configured to measure the channel state information reference signal CSI-RS and the synchronization signal block SSB sent by the first cell according to the configuration information; to determine the measurement of the CSI-RS of the first cell The result and the measurement result of the SSB satisfy the preset condition.
- the transceiving unit 1100 is further configured to send a first report to the first network device, where the first report includes identification information of the first cell.
- the first report further includes the measurement result of the CSI-RS of the cell and/or the measurement result of the SSB.
- the measurement result of the CSI-RS and the measurement result of the SSB satisfy a preset condition, including: the difference between the measurement value of the CSI-RS and the measurement value of the SSB satisfies a difference threshold.
- the configuration information includes the difference threshold.
- the transceiver unit 1100 is further configured to: receive system information from the first network device, where the system information includes the difference threshold.
- the measurement result of the CSI-RS and the measurement result of the SSB satisfy a preset condition, including:
- the measured value of the SSB meets the first quality threshold; the measured value of the CSI-RS meets the second quality threshold.
- the configuration information includes the first quality threshold and the second quality threshold.
- the transceiving unit 1100 is further configured to receive system information from the first network device, the first quality threshold and the second quality threshold of the system information.
- the measured value is any one of the following:
- Received signal code power RSCP reference signal received power RSRP, reference signal received quality RSRQ, signal to noise ratio SNR, signal to interference noise ratio SINR, reference signal strength indicator RSSI.
- the transceiving unit 1100 and the processing unit 1200 may be used to:
- the transceiver unit 1100 is configured to receive a first message from a first network device, where the first message is used to instruct the terminal device to switch to a target cell;
- the processing unit 1200 is configured to determine that a connection failure has occurred; and is also configured to determine indication information used by the first network device to determine the type of the measurement result of the cell measured by the terminal device, and the type of the measurement result includes The measurement result type based on the channel state information reference signal CSI-RS or the measurement result type based on the synchronization signal block SSB;
- the transceiving unit 1100 is further configured to send the instruction information to the first network device.
- the transceiving unit 1100 is configured to send the instruction information to the first network device, including:
- the transceiving unit 1100 is configured to send the instruction information to the first network device through the second network device, including:
- the instruction information is sent to the first network device through the second network device and the third network device, where the third network device is a network device that has a connection failure to which the target cell belongs.
- the indication information is carried in a mobile robustness optimization RLF report or a radio link failure RLF report.
- the RLF report further includes location information and/or failure type of the cell handover failure of the terminal device, where the failure type includes handover failure HOF and/or radio link failure RLF.
- the transceiver unit 1100 in the communication device 1000 may correspond to the transceiver 2020 in the terminal device 2000 shown in FIG. 10, and the processing unit 1200 in the communication device 1000 may It corresponds to the processor 2010 in the terminal device 2000 shown in FIG. 10.
- the transceiver unit 1200 in the communication device 1000 may be an input/output interface.
- the communication device 1000 may correspond to the network device in the above method embodiment, for example, it may be a network device or a chip configured in the network device.
- the communication device 1000 may correspond to the first network device in the method 300 according to the embodiment of the present application, and the communication device 1000 may include a unit for executing the method executed by the first network device in the method 300 in FIG. 3 , Or, a unit that executes the method executed by the first network device in the method 500 in FIG. 5.
- each unit in the communication device 1000 and other operations or functions described above are used to implement the corresponding process of the first network device in the method 300 in FIG. 3, or to implement the corresponding process of the first network device in the method 500 in FIG. Process.
- the transceiver unit 1100 in the communication device 1000 may correspond to the transceiver 3200 in the network device 3000 shown in FIG. 11, and the processing unit 1200 in the communication device 1000 may It corresponds to the processor 3100 in the network device 3000 shown in FIG. 11.
- the transceiver unit 1100 in the communication device 1000 may be an input/output interface.
- the transceiver unit 1100 is configured to send configuration information to the terminal device, and the configuration information is used to configure the channel state information reference signal CSI-RS and synchronization signal block SSB sent by the terminal device to the first cell Performing measurement; the transceiving unit 1100 is further configured to receive a first report from the terminal device, the first report including the identification information of the first cell, the CSI-RS of the first cell The measurement result and the measurement result of the SSB satisfy a preset condition.
- the first report further includes a measurement result of the CSI-RS of the first cell and a measurement result of the SSB.
- the apparatus further includes: a processing unit 1200, configured to determine, according to the first report, that the second network device corresponding to the first cell is a pseudo base station.
- a processing unit 1200 configured to determine, according to the first report, that the second network device corresponding to the first cell is a pseudo base station.
- the measurement result of the CSI-RS and the measurement result of the SSB satisfy a preset condition, including: the difference between the measurement value of the CSI-RS and the measurement value of the SSB satisfies a difference threshold.
- the configuration information includes the difference threshold.
- the transceiving unit 1100 is further configured to send system information, where the system information includes the difference threshold.
- the measurement result of the CSI-RS and the measurement result of the SSB satisfy a preset condition, including:
- the measured value of the SSB meets the first quality threshold; the measured value of the CSI-RS meets the second quality threshold.
- the configuration information includes the first quality threshold and the second quality threshold.
- the transceiver unit 1100 is further configured to send system information, where the system information includes the first quality threshold and the second quality threshold.
- the measured value is any one of the following:
- Received signal code power RSCP reference signal received power RSRP, reference signal received quality RSRQ, signal to noise ratio SNR, signal to interference noise ratio SINR, reference signal strength indicator RSSI.
- the transceiver unit 1100 is further configured to receive CSI-RS configuration information from a third network device.
- the transceiver unit 1100 is configured to send a first message to the terminal device, where the first message is used to indicate information that the terminal device switches to the target cell; the transceiver unit 1100 also It is used to receive indication information, the indication information is used to determine the type of the measurement result of the cell measured by the terminal device, the type of the measurement result includes a CSI-RS-based measurement result type or an SSB-based measurement result type.
- the device 1000 further includes:
- the processing unit 1200 is configured to identify the RLF report according to the instruction information.
- the measurement result of the cell is based on the measurement result of the SSB;
- the processing unit 1200 is configured to identify the RLF report according to the instruction information, including:
- the measurement result of the cell is a measurement result based on CSI-RS
- the first network device identifying the RLF report according to the instruction information includes:
- the first network device determines that the RLF report is: a report generated when the terminal device fails to switch to the target cell.
- the transceiver unit 1100 is configured to receive indication information, including:
- the transceiver unit 1100 is configured to receive indication information, including:
- the second network device is a serving network device of the terminal device, and the instruction information is sent by the terminal device to the second network device;
- the third network device is a network device that has a connection failure to which the target cell belongs.
- the indication information is carried in the RLF report.
- the RLF report further includes location information and/or failure type of the cell handover failure of the terminal device, where the failure type includes handover failure HOF and/or radio link failure RLF.
- the transceiver unit 1100 in the communication device 1000 may correspond to the transceiver unit 3100 in the network device 3000 shown in FIG. 11, and the processing unit 1200 in the communication device 1000 may It corresponds to the processor 3202 in the network device 3000 shown in FIG. 11.
- the transceiver unit 1200 in the communication device 1000 may be an input/output interface.
- FIG. 10 is a schematic structural diagram of a terminal device 2000 provided by an embodiment of the present application.
- the terminal device 2000 can be applied to the system shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiment.
- the terminal device 2000 includes a processor 2010 and a transceiver 2020.
- the terminal device 2000 further includes a memory 2030.
- the processor 2010, the transceiver 2002, and the memory 2030 can communicate with each other through internal connection paths to transfer control or data signals.
- the memory 2030 is used to store computer programs, and the processor 2010 is used to call and transfer from the memory 2030. Run the computer program to control the transceiver 2020 to send and receive signals.
- the terminal device 2000 may further include an antenna 2040 for transmitting the uplink data or uplink control signaling output by the transceiver 2020 through a wireless signal.
- the aforementioned processor 2010 and the memory 2030 can be combined into a processing device, and the processor 2010 is configured to execute the program code stored in the memory 2030 to implement the aforementioned functions.
- the memory 2030 may also be integrated in the processor 2010 or independent of the processor 2010.
- the processor 2010 may correspond to the processing unit in FIG. 9.
- the above transceiver 2020 may correspond to the communication unit in FIG. 9 and may also be referred to as a transceiver unit.
- the transceiver 2020 may include a receiver (or called receiver, receiving circuit) and a transmitter (or called transmitter, transmitting circuit). Among them, the receiver is used to receive signals, and the transmitter is used to transmit signals.
- the terminal device 2000 shown in FIG. 10 can implement various processes involving the terminal device in the method embodiment shown in FIG. 3 or FIG. 5 or FIG. 8.
- the operation or function of each module in the terminal device 2000 is to implement the corresponding process in the foregoing method embodiment.
- the above-mentioned processor 2010 can be used to execute the actions described in the previous method embodiments implemented by the terminal device, and the transceiver 2020 can be used to execute the terminal device described in the previous method embodiments to send or receive from the network device action.
- the transceiver 2020 can be used to execute the terminal device described in the previous method embodiments to send or receive from the network device action.
- the aforementioned terminal device 2000 may further include a power supply 2050 for providing power to various devices or circuits in the terminal device.
- the terminal device 2000 may also include one or more of an input unit 2060, a display unit 2070, an audio circuit 2080, a camera 2090, and a sensor 2100.
- the audio circuit A speaker 2082, a microphone 2084, etc. may also be included.
- FIG. 11 is a schematic structural diagram of a network device provided by an embodiment of the present application, for example, it may be a schematic structural diagram of a base station.
- the base station 3000 can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiment.
- the base station 3000 may include one or more radio frequency units, such as a remote radio unit (RRU) 3100 and one or more baseband units (BBU) (also known as distributed unit (DU) )) 3200.
- RRU 3100 may be called a transceiver unit or a communication unit, and corresponds to the transceiver unit 1100 in FIG. 9.
- the transceiver unit 3100 may also be called a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 3101 and a radio frequency unit 3102.
- the transceiver unit 3100 may include a receiving unit and a transmitting unit, the receiving unit may correspond to a receiver (or receiver, receiving circuit), and the transmitting unit may correspond to a transmitter (or transmitter or transmitting circuit).
- the RRU 3100 part is mainly used for receiving and sending radio frequency signals and converting radio frequency signals and baseband signals.
- the 3200 part of the BBU is mainly used for baseband processing and control of the base station.
- the RRU 3100 and the BBU 3200 may be physically set together, or may be physically separated, that is, a distributed base station.
- the BBU 3200 is the control center of the base station, and may also be called a processing unit, which may correspond to the processing unit 1200 in FIG. 9 and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
- the BBU processing unit
- the BBU may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment, for example, to generate configuration information reported by the CSI.
- the BBU 3200 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network with a single access standard (such as an LTE network), or support different access standards. Wireless access network (such as LTE network, 5G network or other networks).
- the BBU 3200 also includes a memory 3201 and a processor 3202.
- the memory 3201 is used to store necessary instructions and data.
- the processor 3202 is configured to control the base station to perform necessary actions, for example, to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
- the memory 3201 and the processor 3202 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
- the base station 3000 shown in FIG. 11 can implement various processes involving network devices in the foregoing method embodiments.
- the operation or function of each module in the base station 3000 is to implement the corresponding process in the foregoing method embodiment.
- the above-mentioned BBU 3200 can be used to perform the actions described in the previous method embodiments implemented by the network device, and the RRU 3100 can be used to perform the actions described in the previous method embodiments that the network device sends to or receives from the terminal device.
- the RRU 3100 can be used to perform the actions described in the previous method embodiments that the network device sends to or receives from the terminal device.
- the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code runs on a computer, the computer executes FIGS. 3 to 5, And the method on the terminal device side in the embodiment shown in FIG. 7 and FIG. 8.
- the present application also provides a computer-readable medium that stores program code, and when the program code runs on a computer, the computer executes FIGS. 3 to 5, And the method on the first network device side in the embodiment shown in FIG. 7.
- the present application also provides a system, which includes the aforementioned one or more terminal devices and one or more network devices.
- An embodiment of the present application also provides a processing device, including a processor and an interface; the processor is configured to execute the communication method in any of the foregoing method embodiments.
- the processing device may be a chip.
- the processing device may be a field programmable gate array (FPGA), a general-purpose processor, a digital signal processor (digital signal processor, DSP), or an application specific integrated circuit (ASIC) , Ready-made programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, or system on chip (SoC), or central processing
- the central processor unit (CPU) can also be a network processor (NP), a digital signal processing circuit (digital signal processor, DSP), or a microcontroller (microcontroller unit, MCU) It can also be a programmable logic device (PLD) or other integrated chips.
- NP network processor
- DSP digital signal processor
- MCU microcontroller
- PLD programmable logic device
- the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
- the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
- the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
- the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
- the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
- the volatile memory may be random access memory (RAM), which is used as an external cache.
- RAM random access memory
- static random access memory static random access memory
- dynamic RAM dynamic random access memory
- DRAM dynamic random access memory
- SDRAM synchronous dynamic random access memory
- double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
- enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
- serial link DRAM SLDRAM
- direct rambus RAM direct rambus RAM
- the computer program product includes one or more computer instructions.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
- the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
- the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disc, SSD)) etc.
- the network equipment in the above-mentioned device embodiments completely corresponds to the network equipment or terminal equipment in the terminal equipment and method embodiments, and the corresponding modules or units execute the corresponding steps.
- the communication unit transmits the receiving or In the sending step, other steps except sending and receiving can be executed by the processing unit (processor).
- the processing unit processor
- component used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
- the component may be, but is not limited to, a process, processor, object, executable file, thread of execution, program, or computer running on the processor.
- the application running on the computing device and the computing device can be components.
- One or more components can reside in a process or thread of execution, and the components can be located on one computer or distributed between two or more computers.
- these components can be executed from various computer readable media having various data structures stored thereon.
- a component can pass a local signal based on a signal having one or more data packets (for example, data from two components that interact with another component in a local system, a distributed system, or a network, such as the Internet that interacts with other systems through signals). Or remote process to communicate.
- a signal having one or more data packets for example, data from two components that interact with another component in a local system, a distributed system, or a network, such as the Internet that interacts with other systems through signals.
- remote process to communicate for example, data from two components that interact with another component in a local system, a distributed system, or a network, such as the Internet that interacts with other systems through signals.
- a corresponding to B means that B is associated with A, and B can be determined according to A.
- determining B according to A does not mean that B is determined only according to A, and B can also be determined according to A and/or other information.
- the item can be any of the following: A; B ; C; A and B; A and C; B and C; A, B and C; A and A; A, A and A; A, A and B; A, A and C, A, B and B; A , C and C; B and B, B, B and B, B, B and C, C and C; C, C and C, and other combinations of A, B and C.
- the item can be any of the following: A; B ; C; A and B; A and C; B and C; A, B and C; A and A; A and B; A, A and C, A, B and B; A , C and C; B and B, B, B and C, C and C; C, C and C, and other combinations of A, B and C.
- the item includes at least one of the following: A, B,..., and X"
- the applicable items of the item can also be obtained according to the aforementioned rules.
- the terminal device and/or the network device can perform some or all of the steps in the embodiment of this application. These steps or operations are only examples, and the embodiments of this application can also perform other operations or various Deformation of operation. In addition, each step may be executed in a different order presented in the embodiment of the present application, and it may not be necessary to perform all the operations in the embodiment of the present application.
- the disclosed system, device, and method may be implemented in other ways.
- the device embodiments described above are only illustrative.
- the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
- each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
- the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
- the aforementioned storage media include: U disk, mobile hard disk, read only memory ROM, random access memory RAM, magnetic disk or optical disk and other media that can store program codes.
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Abstract
本申请提供了一种用于通信的方法和装置,有助于提高识别伪基站的效率。该方法包括:终端设备通过接收网络设备发送的配置信息,然后根据配置信息对小区发送的信道状态信息参考信号CSI-RS和同步信号块SSB同时进行测量,在确定小区的CSI-RS的测量结果和SSB的测量结果满足预设条件时,向网络设备上报测量报告,测量报告中包括小区的标识信息,便于网络设备识别伪基站。
Description
本申请要求于2019年08月02日提交中国专利局、申请号为201910713891.8、申请名称为“用于通信的方法和装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信领域,并且更具体地,涉及一种用于通信的方法和装置。
网络中存在伪基站,伪基站可以伪装成一个正常基站,发送正常的无线信号。终端设备在测量目标小区时,可能会测量到伪基站下的小区,并把该伪小区的测量结果上报给服务基站。服务基站基于测量结果进行切换判决后,可能会将终端设备切换到伪小区,导致切换失败,从而引起终端设备的业务中断,降低终端设备的服务体验。
目前,现有技术识别伪基站花费的时间较长。因此,亟需提出一种方法提高识别伪基站的效率。
发明内容
有鉴于此,本申请提供一种用于通信的方法和装置,有助于提高识别伪基站的效率。
第一方面,提供了一种用于通信的方法,包括:
首先,终端设备接收来自第一网络设备的配置信息;然后,终端设备根据所述配置信息,对第一小区发送的信道状态信息参考信号CSI-RS和同步信号块SSB进行测量;终端设备确定所述第一小区的所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件;最后,终端设备向所述第一网络设备发送第一报告,所述第一报告包括所述第一小区的标识信息。这样,终端设备通过同时测量第一小区发送的CSI-RS和SSB,并在满足CSI-RS的测量结果和SSB的测量结果预设条件时,向第一网络设备上报第一报告,有助于第一网络设备识别伪基站。
可选地,所述第一报告还包括所述第一小区的CSI-RS的测量结果和/或SSB的测量结果。这里,终端设备可以将CSI-RS的测量结果和/或所述SSB的测量结果上报给第一网络设备,以便于第一网络设备结合测量结果识别伪基站。
可选地,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:所述CSI-RS的测量值与所述SSB的测量值的差值满足差值门限。
可选地,所述配置信息包括所述差值门限。因此,终端设备可以通过配置信息获得差值门限。
在一种可能的实现方式中,所述方法还包括:
所述终端设备接收来自所述第一网络设备的系统信息,所述系统信息包括所述差值门 限。因此,终端设备可以通过系统信息获得差值门限。
可选地,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:
所述SSB的测量值满足第一质量门限;所述CSI-RS的测量值满足第二质量门限。因此,也可以不比较SSB的测量值和CSI-RS的测量值的差值,如果SSB的测量值和CSI-RS的测量值满足各自的质量门限时,也可以认为是满足了预设条件。比如,SSB大于第一质量门限,CSI-RS小于第二质量门限。
可选地,所述配置信息包括所述第一质量门限和所述第二质量门限。因此,终端设备可以通过配置信息获得所述第一质量门限和所述第二质量门限。
在一种可能的实现方式中,所述方法还包括:所述终端设备接收来自所述第一网络设备的系统信息,所述系统信息所述第一质量门限和所述第二质量门限。因此,终端设备可以通过系统信息获得所述第一质量门限和所述第二质量门限。
在一种可能的实现方式中,所述测量值为以下中的任一项:
接收信号码功率RSCP、参考信号接收功率RSRP、参考信号接收质量RSRQ、信噪比SNR、信号与干扰噪声比SINR、参考信号强度指示RSSI。
其中,所述CSI-RS的测量值的类型与所述SSB的测量值的类型相同。
第二方面,提供了一种用于通信的方法,包括:
首先,第一网络设备向终端设备发送配置信息,所述配置信息用于配置所述终端设备对第一小区发送的信道状态信息参考信号CSI-RS和同步信号块SSB进行测量;然后,第一网络设备接收来自所述终端设备的第一报告,所述第一报告包括所述第一小区的标识信息,所述第一小区的所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件。这样,第一网络设备可以获得测量结果满足预设条件的第一小区的标识信息,从而可以基于第一小区的标识信息进行识别。
可选地,所述第一报告还包括所述第一小区的所述CSI-RS的测量结果和所述SSB的测量结果。这里,如果第一报告还包括所述CSI-RS的测量结果和所述SSB的测量结果,那么第一网络设备可以结合所述CSI-RS的测量结果和所述SSB的测量结果作进一步判断。
在一种可能的实现方式中,所述方法还包括:
所述第一网络设备根据所述第一报告,确定所述第一小区对应的第二网络设备是伪基站。这里,第一网络设备使用第一报告,可以确定第一小区对应的第二网络设备是伪基站,从而可以有效识别伪基站。
可选地,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:所述CSI-RS的测量值与所述SSB的测量值的差值满足差值门限。
可选地,所述配置信息包括所述差值门限。因此,第一网络设备可以通过配置信息向终端设备发送差值门限。
在一种可能的实现方式中,所述方法还包括:所述第一网络设备发送系统信息,所述系统信息包括所述差值门限。因此,第一网络设备可以通过系统信息向终端设备发送差值门限。
可选地,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:
所述SSB的测量值满足第一质量门限;所述CSI-RS的测量值满足第二质量门限。
比如,所述SSB的测量值大于第一质量门限,所述CSI-RS的测量值小于第二质量门限。
可选地,所述配置信息包括所述第一质量门限和所述第二质量门限。因此,第一网络设备可以通过配置信息向终端设备发送所述第一质量门限和所述第二质量门限。
在一种可能的实现方式中,所述方法还包括:
所述第一网络设备发送系统信息,所述系统信息包括所述第一质量门限和所述第二质量门限。因此,第一网络设备可以通过系统信息向终端设备发送所述第一质量门限和所述第二质量门限。
可选地,所述测量值为以下中的任一项:
接收信号码功率RSCP、参考信号接收功率RSRP、参考信号接收质量RSRQ、信噪比SNR、信号与干扰噪声比SINR、参考信号强度指示RSSI。
其中,所述CSI-RS的测量值的类型与所述SSB的测量值的类型相同。
在一种可能的实现方式中,所述方法还包括:所述第一网络设备接收来自第三网络设备的CSI-RS配置信息。因此,第一网络设备也可以接收第三网络设备发送的CSI-RS配置信息,以便于向终端设备发送CSI-RS配置信息。
第三方面,提供了一种用于通信的方法,包括:
首先,终端设备接收来自第一网络设备的第一消息,所述第一消息用于指示所述终端设备切换到目标小区;然后,终端设备确定发生连接失败;终端设备确定指示信息,所述指示信息用于所述第一网络设备确定终端设备测得的小区的测量结果的类型,所述测量结果的类型包括基于信道状态信息参考信号CSI-RS的测量结果类型或基于同步信号块SSB的测量结果类型;最后,终端设备向所述第一网络设备发送所述指示信息,以便于辅助所述第一网络设备根据指示信息识别RLF报告。
在一种可能的实现方式中,所述终端设备向第一网络设备发送所述指示信息,包括:
所述终端设备通过第二网络设备向所述第一网络设备发送所述指示信息,所述第二网络设备为所述终端设备的服务网络设备。因此,终端设备可以向第二网络设备发送指示信息,然后第二网络设备向第一网络设备发送所述指示信息。
在一种可能的实现方式中,所述终端设备通过第二网络设备向所述第一网络设备发送所述指示信息,包括:
所述终端设备通过所述第二网络设备和第三网络设备向所述第一网络设备发送所述指示信息,所述第三网络设备是所述目标小区所属的发生连接失败的网络设备。因此,终端设备可以向第二网络设备发送指示信息,然后第二网络设备向第三网络设备发送所述指示信息,最后第三网络设备向所述第一网络设备发送所述指示信。
可选地,所述指示信息携带于移动鲁棒性优化MRO报告或者无线链路失败RLF报告中。
可选地,所述RLF报告还包括所述终端设备发生切换小区失败的位置信息和/或失败类型,其中,所述失败类型包括切换失败HOF和/或无线链路失败RLF。
第四方面,提供了一种用于通信的方法,包括:
首先,第一网络设备向终端设备发送第一消息,所述第一消息用于指示信息所述终端设备切换到目标小区;然后,第一网络设备接收指示信息,所述指示信息用于确定终端设 备测得的小区的测量结果的类型,所述测量结果的类型包括基于CSI-RS的测量结果类型或基于SSB的测量结果类型。这样,第一网络设备可以根据指示信息,识别RLF报告。
在一种可能的实现方式中,所述方法还包括:
所述第一网络设备根据所述指示信息,识别RLF报告。
可选地,所述小区的测量结果是基于SSB的测量结果;其中,所述第一网络设备根据所述指示信息,识别RLF报告,包括:所述第一网络设备根据所述终端设备发生切换小区失败的位置信息和/或失败类型,识别所述RLF报告,所述失败类型包括切换失败HOF和/或无线链路失败RLF。这里,如果小区的测量结果是基于SSB的测量结果,那么第一网络设备还需要结合位置信息和/或失败类型进一步判断RLF报告。
可选地,所述小区的测量结果是基于CSI-RS的测量结果;其中,所述第一网络设备根据所述指示信息,识别RLF报告,包括:所述第一网络设备确定所述RLF报告为:所述终端设备向目标小区切换失败时生成的报告。这里,如果小区的测量结果是基于CSI-RS的测量结果,那么第一网络设备可以识别RLF报告是由于向目标小区切换失败时生成的报告,而非伪基站导致的切换失败时生成的报告。
在一种可能的实现方式中,所述第一网络设备接收指示信息,包括:
所述第一网络设备接收来自所述终端设备的所述指示信息。这里,第一网络设备可以直接接收终端设备发送的指示信息,无需其他网络设备转发。
在一种可能的实现方式中,所述第一网络设备接收指示信息,包括:
所述第一网络设备接收来自第二网络设备的所述指示信息,所述第二网络设备为所述终端设备的服务网络设备,所述指示信息是所述终端设备发送给所述第二网络设备的;
或者,所述第一网络设备接收来自第三网络设备的所述指示信息,其中,所述指示信息是第二网络设备发送给所述第三网络设备的,所述第二网络设备为所述终端设备的服务网络设备,所述第三网络设备是所述目标小区所属的发生连接失败的网络设备。这里,第一网络设备可以接收其他网络设备转发的指示信息,而非终端设备直接发送。
可选地,所述指示信息携带于所述RLF报告中。
可选地,所述RLF报告还包括所述终端设备发生切换小区失败的位置信息和/或失败类型,其中,所述失败类型包括切换失败HOF和/或无线链路失败RLF。
第五方面,提供了一种用于通信的装置,该通信装置包括用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的模块;或者,包括用于执行上述第三方面或第三方面的任意可能的实现方式中的方法的模块。
第六方面,提供了一种用于通信的装置,该通信装置包括用于执行上述第二方面或第二方面的任意可能的实现方式中的方法的模块;或者,包括用于执行上述第四方面或第四方面的任意可能的实现方式中的方法的模块。
第七方面,提供了一种用于通信的装置,包括处理器和接口电路,接口电路用于接收来自该通信装置之外的其它通信装置的信号并传输至该处理器或将来自该处理器的信号发送给该通信装置之外的其它通信装置,该处理器通过逻辑电路或执行代码指令用于实现前述第一方面或第一方面的任意可能的实现方式中的方法,或者,该处理器通过逻辑电路或执行代码指令用于实现前述第三方面或第三方面的任意可能的实现方式中的方法。
第八方面,提供了一种用于通信的装置,包括处理器和接口电路,该接口电路用于 接收来自该通信装置之外的其它通信装置的信号并传输至该处理器或将来自该处理器的信号发送给该通信装置之外的其它通信装置,该处理器通过逻辑电路或执行代码指令用于实现前述第二方面或第二方面的任意可能的实现方式中的方法,或者,该处理器通过逻辑电路或执行代码指令用于实现前述第四方面或第四方面的任意可能的实现方式中的方法。
第九方面,提供了一种计算机可读存储介质,该计算机可读存储介质中存储有计算机程序或指令,当该计算机程序或指令被执行时,实现上述第一方面或第一方面的任意可能的实现方式中的方法,或者,实现上述第三方面或第三方面的任意可能的实现方式中的方法。
第十方面,提供了一种计算机可读存储介质,该计算机可读存储介质中存储有计算机程序或指令,当该计算机程序或指令被执行时,实现上述第二方面或第二方面的任意可能的实现方式中的方法,或者,实现上述第四方面或第四方面的任意可能的实现方式中的方法。
第十一方面,提供了一种包含指令的计算机程序产品,当该指令被运行时,实现第一方面或第一方面的任意可能的实现方式中的方法,或者,实现上述第三方面或第三方面的任意可能的实现方式中的方法。
第十二方面,提供了一种包含指令的计算机程序产品,当该指令被运行时,实现第二方面或第二方面的任意可能的实现方式中的方法,或者,实现上述第四方面或第四方面的任意可能的实现方式中的方法。
第十三方面,提供了一种通信芯片,其中存储有指令,当其在计算机设备上运行时,使得所述通信芯片执行上述第一方面至第四方面中任一方面的任意可能的实现方式中的方法。
第十四方面,提供了一种通信系统,该通信系统包括前述第五方面的通信装置和第六方面的通信装置。
第十五方面,提供了一种通信系统,该通信系统包括前述第七方面的通信装置和第八方面的通信装置。
图1是应用本申请实施例的一种系统架构的示意图;
图2是存在伪基站的一个场景示意图;
图3是根据本申请实施例的用于通信的方法的示意性交互图;
图4是应用本申请实施例的一个例子的示意图;
图5根据本申请另一实施例的用于通信的方法的示意性交互图;
图6是伪基站场景下一个例子的示意图;
图7是应用本申请另一实施例的一个例子的示意图;
图8是应用本申请又一实施例用于检测伪基站的方法的示意图;
图9是本申请实施例提供的用于通信的装置的示意性框图;
图10是本申请实施例提供的终端设备的结构示意图;
图11是本申请实施例提供的网络设备的结构示意图。
下面将结合附图,对本申请中的技术方案进行描述。
在本申请实施例中,“多个”可以理解为“至少两个”;“多项”可以理解为“至少两项”。
本申请实施例的技术方案可以应用于各种通信系统,例如:长期演进(long term evolution,LTE)系统、第五代(5th generation,5G)移动通信系统中的新无线(new radio,NR)系统以及未来的移动通信系统。
图1是本申请的实施例应用的移动通信系统的架构示意图。如图1所示,该移动通信系统包括核心网设备110、无线接入网设备120和至少一个终端设备(如图1中的终端设备130和终端设备140)。终端设备通过无线的方式与无线接入网设备相连,无线接入网设备通过无线或有线方式与核心网设备连接。核心网设备与无线接入网设备可以是独立的不同的物理设备,也可以是将核心网设备的功能与无线接入网设备的逻辑功能集成在同一个物理设备上,还可以是一个物理设备上集成了部分核心网设备的功能和部分的无线接入网设备的功能。终端设备可以是固定位置的,也可以是可移动的。图1只是示意图,该通信系统中还可以包括其它网络设备,如还可以包括无线中继设备和无线回传设备,在图1中未画出。本申请的实施例对该移动通信系统中包括的核心网设备、无线接入网设备和终端设备的数量不做限定。
无线接入网(radio access network,RAN)设备是终端设备通过无线方式接入到该移动通信系统中的接入设备,可以是基站NodeB、演进型基站(evloved NodeB,eNB)、5G移动通信系统中的下一代基站(next generation NodeB,gNB)、传输点、未来移动通信系统中的基站或无线保真(wireless fidelity,Wi-Fi)系统中的接入节点,5G系统中的基站的一个或一组(包括多个天线面板)天线面板,或者,还可以为构成gNB或传输点的网络节点,如基带单元(baseband unit,BBU),或,分布式单元(distributed unit,DU),或,集中式单元(centralized unit,CU),或,集中式单元控制面(centralized unit control plane,CU-CP)和集中式单元用户面(centralized unit user plane,CU-UP)等。本申请的实施例对无线接入网设备所采用的具体技术和具体设备形态不做限定。在一些部署中,gNB可以包括CU和DU。一个CU可以连接一个DU,或者也可以多个DU共用一个CU,可以节省成本,以及易于网络扩展。CU实现gNB的部分功能,DU实现gNB的部分功能。比如,CU负责处理非实时协议和服务,以实现无线资源控制(radio resource control,RRC)层,分组数据汇聚层协议(packet data convergence protocol,PDCP)层的功能。DU负责处理物理层协议和实时服务,以实现无线链路控制(radio link control,RLC)层、媒体接入控制(media access control,MAC)层和物理(physical,PHY)层的功能。CU和DU的切分可以按照上述协议栈进行切分,本申请实施例中并不完全限定上述协议栈切分方式,还可以有其它的切分方式,具体可以参考TR38.801v14.0.0。
CU和DU之间通过F1接口连接。CU代表gNB通过Ng接口和核心网连接。更进一步,集中式单元CU还可以划分为控制面(CU-CP)和用户面(CU-UP)。其中CU-CP负责控制面功能,主要包含RRC和分组数据汇聚层协议控制面(packet data convergence protocol control,PDCP-C)。PDCP-C主要负责控制面数据的加解密,完整性保护,数据传输等至少一种功能。CU-UP负责用户面功能,主要包含业务数据适配协议(service data adaptation protocol,SDAP)和分组数据汇聚层协议用户面(packet data convergence protocol user,PDCP-U)。其中SDAP主要负责将核心网的数据进行处理并将flow映射到承载。PDCP-U主要负责数据面的加解密,完整性保护,头压缩,序列号维护,数据传输等至少一种功能。其中CU-CP和CU-UP通过E1接口连接。CU-CP代表gNB通过Ng接口和核心网连接。通过F1-C(控制面)和DU连接。CU-UP通过F1-U(用户面)和DU连接。当然还有一种可能的实现是PDCP-C也在CU-UP。
gNB还可以包括有源天线单元(active antenna unit,AAU)。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息,或者,由PHY层的信息转变而来,因而,在这种架构下,高层信令,如RRC层信令,也可以认为是由DU发送的,或者,由DU+AAU发送的。可以理解的是,网络设备可以为包括CU节点、DU节点、CU-CP节点、CU-UP节点、AAU节点中一项或多项的设备。此外,CU可以作为接入网中的网络设备,也可以作为核心网(core network,CN)中的网络设备,本申请对此不做限定。
终端设备也可以称为终端Terminal、用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端(mobile terminal,MT)等。终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
无线接入网设备和终端设备可以部署在陆地上,包括室内或室外、手持或车载;也可以部署在水面上;还可以部署在空中的飞机、气球和卫星上。本申请的实施例对无线接入网设备和终端设备的应用场景不做限定。
本申请的实施例可以适用于下行信号传输,也可以适用于上行信号传输,还可以适用于设备到设备(device to device,D2D)的信号传输。对于下行信号传输,发送设备是无线接入网设备,对应的接收设备是终端设备。对于上行信号传输,发送设备是终端设备,对应的接收设备是无线接入网设备。对于D2D的信号传输,发送设备是终端设备,对应的接收设备也是终端设备。本申请的实施例对信号的传输方向不做限定。
无线接入网设备和终端设备之间以及终端设备和终端设备之间可以通过授权频谱(licensed spectrum)进行通信,也可以通过免授权频谱(unlicensed spectrum)进行通信,也可以同时通过授权频谱和免授权频谱进行通信。无线接入网设备和终端设备之间以及终端设备和终端设备之间可以通过6千兆赫(gigahertz,GHz)以下的频谱进行通信,也可以通过6G以上的频谱进行通信,还可以同时使用6G以下的频谱和6G以上的频谱进行通信。本申请的实施例对无线接入网设备和终端设备之间所使用的频谱资源不做限定。
在本申请实施例中,如果没有特殊说明,网络设备均指无线接入网设备。终端设备或网络设备包括硬件层、运行在硬件层之上的操作系统层,以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit,CPU)、内存管理单元(memory management unit,MMU)和内存(也称为主存)等硬件。该操作系统可以是任意一种或 多种通过进程(process)实现业务处理的计算机操作系统,例如,Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且,本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定,只要能够通过运行记录有本申请实施例提供的方法的代码的程序,以根据本申请实施例提供的方法进行通信即可,例如,本申请实施例提供的方法的执行主体可以是终端设备或网络设备,或者,是终端设备或网络设备中能够调用程序并执行程序的功能模块。
另外,本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如,计算机可读介质可以包括,但不限于:磁存储器件(例如,硬盘、软盘或磁带等),光盘(例如,压缩盘(compact disc,CD)、数字通用盘(digital versatile disc,DVD)等),智能卡和闪存器件(例如,可擦写可编程只读存储器(erasable programmable read-only memory,EPROM)、卡、棒或钥匙驱动器等)。另外,本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于,无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
在NR中,终端设备可以基于同步信号/物理广播信道块(synchronization signal/physical broadcast channel,SSB)进行测量。小区可以发送SSB;终端设备可以根据接收的SSB对小区进行测量。由于SSB是广播发送的,且其本身的安全保护较差,易于复制,因此容易被伪基站复制后用于伪装。图2示出了存在伪基站的一个场景示意图。如图2所示,伪基站C会复制真基站B下的小区B(可以称作真实小区)发送的SSB信息。当源基站A配置UE测量基站B的SSB时,对于位于基站A和伪基站C的重叠覆盖区域的UE,可能会测量到伪基站C下的伪小区发送的SSB,并上报测量报告给基站A。可以理解的,伪基站是未被网络设备授权的设备,因此伪基站和真实的网络设备间无法建立网络设备间的接口。比如,伪基站无法和真实基站基于X2/Xn口进行信息交互;伪基站无法和核心网设备基于S1/NG接口进行信息交互;若伪基站为DU,则伪基站和真实基站CU无法基于F1接口进行信息交互。
信道状态信息参考信号(channel-state information reference signal,CSI-RS)是通过专有信令配置给终端设备的,且信号设计复杂,因此一般无法被伪基站复制。为了避免切换到伪基站,源基站可以配置终端设备测量目标基站下的小区的CSI-RS,并根据基于CSI-RS的测量报告进行切换判决,这种方式需要多个目标基站都发送CSI-RS,资源开销大。此外又可以考虑当终端设备上报基于SSB的测量报告后,基站可以配置终端设备再次测量目标小区的信道状态信息参考信号CSI-RS。这种避免伪基站的方式花费的时间过长,容易造成切换失败。本申请实施例的通信方法,能够预识别伪基站,提高切换的效率。
为了便于理解,在介绍本申请实施例前,先对本申请实施例可能涉及到的术语或概念进行介绍。
移动鲁棒性优化(mobility robustness optimization,MRO)机制,通过终端设备记录和上报移动性失败过程中的参数(比如移动性失败过程中所经历的各个小区的参数以及时间信息)给网络设备,使得网络设备可以确定发生失败的小区,以便更好的调整切换相关参数。
作为示例,MRO的记录报告(可以称为无线链路失败(radio link failure,RLF)报告)中可以包括以下至少一种:
1)失败主小区标识(failedPcellId):终端设备检测到连接失败的主小区信息,或者切换失败的目标主小区信息。
可选地,失败报告中还可以不包括失败主小区标识(failedPcellId),而是包括失败小区标识(failedCellId)。其中,失败小区标识即终端设备检测到连接失败的小区信息,或者切换失败的目标小区信息,本申请实施例对此不作限定。
2)连接失败类型(connectionFailureType)。
作为示例,连接失败类型可以为RLF或者切换失败(handover failure,HOF)。
3)之前的主小区标识(previousPcellId):终端设备上一次收到切换命令的前主小区信息。
可选地,失败报告中还可以不包括之前的主小区标识(previousPcellId),而是包括之前的小区标识(previousCellId)。其中,之前的小区标识即终端设备上一次收到切换命令的前小区信息,本申请实施例对此不作限定。
4)重建立小区标识(reestablishmentCellId):连接失败后尝试重建立的小区信息。
5)连接失败时间(timeConnFailure):最后一次收到切换(handover,HO)命令到连接失败的时间。
6)失败后的时间(timeSinceFailure):连接失败时开始记录的时间长度。一般指连接失败到上报失败报告的时间。
作为一个示例,失败报告可以为RLF报告(RLF report),本申请实施例对此不作限定。
其中,小区标识可以包括小区的小区全局标识(cell global identifier,CGI)、物理小区标识(physical cell identifier,PCI)和小区频点、小区标识(cell identifier)中的至少一种。
可选地,上述各处提到的小区信息还可以包括小区质量的测量结果、频点信息、波束标识的至少一种。其中,小区质量的测量结果包括终端设备测量的下行信号质量。其中,下行信号质量可以通过以下指标中的一项或多项表征:接收信号码功率(received signal code powe,RSCP)、参考信号接收功率(reference signal receiving power,RSRP)、参考信号接收质量(reference signal receiving quality,RSRQ)、信噪比(signal noise ratio,SNR)、信号与干扰加噪声比(signal to interference plus noise Ratio,SINR)、参考信号强度指示(reference signal strength indication,RSSI)或其它用于表征信号质量的指标。其中,RSSI、RSRP、RSRQ是小区测量参数,是一个粗略的小区信号估计。RSRP是测量带宽内参考信号接受功率的算术平均;RSSI是测量带宽内所有RB的总功率(有用信号能量+干扰+噪声)的算术平均;RSRQ=N*RSRP/RSSI;SINR是用于精确评估终端设备解调能力的参数,考虑了解调、译码等参数。
CSI-RS配置信息可以是CSI-RS的标识或资源,根据CSI-RS配置信息可以确定测量的CSI-RS的信号位置。
在本申请的各个实施例中,如果没有特殊说明以及逻辑冲突,不同的实施例之间的术语和/或描述具有一致性、且可以相互引用,不同的实施例中的技术特征根据其内在的逻 辑关系可以组合形成新的实施例。
图3示出了根据本申请实施例的用于通信的方法300的示意性交互图。如图3所示,所述方法300包括:
S310,第一网络设备向终端设备发送配置信息,该配置信息用于配置终端设备对第一小区发送的信道状态信息参考信号CSI-RS和同步信号块SSB进行测量。对应的,终端设备接收来自第一网络设备的配置信息。第一小区为第二网络设备下的小区。第二网络设备为不同于第一网络设备的网络设备。
具体而言,第一网络设备可以引入新的测量事件,该测量事件为同时测量CSI-RS和SSB。比如,将该测量事件命名为A7,并向终端设备发送该测量事件的配置信息。也就是说,第一网络设备向终端设备发送的配置信息,用于配置终端设备对第一小区发送的CSI-RS和SSB同时进行测量。
可选地,第一网络设备可以是源网络设备。
S320,终端设备根据配置信息,对第一小区发送的信道状态信息参考信号CSI-RS和同步信号块SSB进行测量。
这里,终端设备可以对第一小区发送的CSI-RS和SSB同时测量。如果第二网络设备是伪基站,那么第二网络设备下的小区发送CSI-RS的可能性比较小。终端设备可以判断测得的CSI-RS的测量结果和SSB的测量结果是否满足预设条件。
S330,终端设备确定该第一小区的该CSI-RS的测量结果和该SSB的测量结果满足预设条件。
应理解,预设条件可以是预定义的,也可以是第一网络设备配置的,对此不作限定。
可选地,作为一种实现方式,终端设备测得CSI-RS的测量结果和SSB的测量结果满足预设条件,包括:CSI-RS的测量值与SSB的测量值之间的差值满足差值门限。例如,CSI-RS的测量值与SSB的测量值之间的差值大于差值门限。可以理解的,CSI-RS的测量值类型和SSB的测量值类型相同。
其中,测量结果的具体表现形式可以是测量值,或者,也可以是非量化的测量结果,对此不作限定。若测量结果的表现形式是测量值,则测量值类型可以为以下中的任一项:接收信号码功率RSCP、参考信号接收功率RSRP、参考信号接收质量RSRQ、信噪比SNR、信号与干扰噪声比SINR、参考信号强度指示RSSI。比如,CSI-RS的RSRP值与SSB的RSRP值之间的差值满足RSRP差值门限。可以理解的,终端设备使用哪种测量值类型可以是第一网络设备配置的,也可以是协议预定义的,对此不作限定。例如,第一网络设备通过测量值类型指示信息来指示终端设备使用哪种测量值类型。可选地,该测量值类型指示信息可以携带在配置信息中。
示例性地,CSI-RS的测量值与SSB的测量值之间的差值满足差值门限可以是CSI-RS的测量值减去SSB的测量值得到的差值满足差值门限;或者,也可以是SSB的测量值减去CSI-RS的测量值得到的差值满足差值门限。
应理解,该差值门限可以是协议预定义的,也可以是第一网络设备配置的,对此不作具体限定。
可选地,配置信息可以包括差值门限。也就是说,终端设备在收到配置信息后,可以从配置信息中得到差值门限。可选地,在本申请实施例中,配置信息还可以包括迟滞、触 发时间、测量事件标识等至少一种测量参数。
或者,可选地,该方法300还包括:第一网络设备向终端设备发送系统信息,系统信息包括该差值门限。也就是说,差值门限也可以携带于系统信息中,这样可以节省配置信息的信令开销。可选地,系统信息还可以包括迟滞、触发时间、测量事件标识等至少一种测量参数。
为了便于理解,这里对“迟滞”和“触发时间”作统一解释,下文出现时将不作赘述。“迟滞”参数一般为质量的幅度迟滞,用于减少由于无线信号波动导致的对小区切换评估的频繁解除和触发,降低乒乓切换以及误判。“触发时间”是指当测量事件满足触发条件时并不立即上报,而是当该事件在触发时间内,一直满足触发门限,才触发上报该事件测量报告。“触发时间”参数可以减少偶然性触发的事件上报,并降低平均切换次数和误切换次数,防止不必要切换的发生。应理解,这里只是简单的介绍了“迟滞”和“触发时间”的含义,具体含义可以参考现有解释。
可选地,作为另一种实现方式,终端设备测得CSI-RS的测量结果和SSB的测量结果满足预设条件,包括:该SSB的测量值满足第一质量门限;该CSI-RS的测量值满足第二质量门限。例如,该SSB的测量值大于第一质量门限,该CSI-RS的测量值小于第二质量门限。
应理解,该第一质量门限和该第二质量门限可以是协议预定义的,也可以是第一网络设备配置的,对此不作具体限定。
可选地,配置信息可以包括该第一质量门限和该第二质量门限。也就是说,终端设备在收到配置信息后,还可以得到该第一质量门限和该第二质量门限。可选地,在本申请实施例中,配置信息还可以包括迟滞、触发时间、测量事件标识等至少一种测量参数。
或者,可选地,该方法300还包括:第一网络设备向终端设备发送系统信息,系统信息包括该第一质量门限和该第二质量门限。也就是说,该第一质量门限和该第二质量门限也可以携带于系统信息中,这样可以节省配置信息的信令开销。可选地,系统信息还可以包括迟滞、触发时间、测量事件标识等至少一种测量参数。
或者,可选地,配置信息可以包括该第一质量门限和第一偏置,而不包括第二质量门限。终端设备基于第一质量门限和第一偏置可以确定出第二质量门限,比如,第一质量门限加上或减去第一偏置即可得到第二质量门限。
类似地,该第一质量门限和第一偏置也可以携带于系统信息中,这样可以节省配置信息的信令开销。
或者,可选地,配置信息可以包括该第二质量门限和第二偏置,而不包括第一质量门限。终端设备基于第二质量门限和第二偏置可以确定出第一质量门限,比如,第二质量门限加上或减去第二偏置即可得到第一质量门限。
类似地,该第二质量门限和第二偏置也可以携带于系统信息中,这样可以节省配置信息的信令开销。
或者,可选地,本申请实施例的配置信息可以携带于系统信息中。应理解,配置信息的相关描述可以参考上文的描述,为了简洁,这里不再作赘述。
S340,终端设备向第一网络设备发送第一报告,该第一报告包括第一小区的标识信息。对应的,第一网络设备接收来自终端设备的第一报告。该第一报告可以是测量报告。
可选地,第一报告中还包括该第一小区的CSI-RS的测量结果和/或SSB的测量结果。
可选地,第一报告中还包括终端设备的位置信息。该位置信息可以用于指示终端设备确定该第一报告时的位置。
在本申请实施例中,终端设备通过对小区的CSI-RS和SSB同时进行测量,并在CSI-RS的测量结果和SSB的测量结果满足预设条件时,终端设备确定第一报告。终端设备可以向第一网络设备发送第一报告,以辅助第一网络设备识别伪基站。相比于现有技术中先测量SSB,再测量CSI-RS,采用本申请实施例的通信方法,第一网络设备能够更早识别伪基站。另一方面,本申请实施例的方法能够避免终端设备切换到伪基站引起的切换失败,有助于提升终端设备的业务体验。
可以理解的,终端设备向第一网络设备发送第一报告,作为一种实现方式,终端设备通过第一网络设备下的小区向第一网络设备发送第一报告。
或者,作为又一种实现方式,终端设备通过其它网络设备下的小区向其它网络设备发送第一报告,其它网络设备向第一网络设备发送第二报告,其中,第二报告可以是第一报告,或者也可以是第一报告的变形。可以理解的,在该实现方式下,第一报告中需要携带第二小区的标识信息(第二小区所属的网络设备是第一网络设备),用于其他网络设备确定第二小区所属的第一网络设备。
可选地,终端设备向第一网络设备发送第一报告,还可以包括:终端设备可以向第一网络设备发送第一报告指示信息,第一报告指示信息用于指示终端设备上存在第一报告。第一网络设备向终端设备发送第一报告上报指示信息,第一报告上报指示信息用于指示终端设备上报第一报告。终端设备根据该第一报告上报指示信息,向第一网络设备发送第一报告。
对于第一网络设备而言,第一网络设备根据第一报告,确定存在伪基站,且该伪基站复制了真实小区的SSB信号和小区标识信息。这里,终端设备在测得第一小区(伪小区)的CSI-RS的测量结果和SSB的测量结果满足预设条件时,才会确定第一报告,并向第一网络设备上报第一报告。若第一报告包括第一小区的标识信息,那么第一网络设备基于第一小区的标识信息,认为真实小区的SSB信号和小区标识信息被伪基站复制了;若第一报告不仅包括第一小区的标识信息,还包括第一小区的CSI-RS的测量结果和SSB的测量结果,那么第一网络设备可以结合第一小区的CSI-RS的测量结果和SSB的测量结果作进一步判断。例如,第一网络设备判断第一小区的CSI-RS的测量结果和SSB的测量结果满足预设条件,则确定真实小区被伪基站复制了。若第一报告还包括位置信息,则第一网络设备还可以进一步判断复制了真实小区的伪基站的位置范围信息。
可选地,该方法300还包括:第一网络设备接收来自第三网络设备的CSI-RS配置信息。举例来说,第一网络设备是源基站,第三网络设备是目标基站,源基站与目标基站之间可以交互CSI-RS配置。
可以理解的,本申请实施例中的第一网络设备(或第二网络设备或第三网络设备)可以上文描述的网络设备中的任一种,比如,可以为DU、CU、CU-CP等等,对此不作具体限定。
为了便于本领域技术人员理解,下面将结合图4中的例子进行描述。
图4是以终端设备是UE,第一网络设备是源基站A,第二网络设备是伪基站C,第 三网络设备的目标基站B为例进行说明。可以理解的,本申请实施例以网络设备为基站为例进行说明,并不仅限于基站,网络设备的具体形式参考上文描述,比如,可以为DU、CU、CU-CP等等。
如图4所示,包括:
401,源基站A向目标基站B发送第一请求。该第一请求用于请求目标基站下的第一小区的CSI-RS配置信息。比如,该第一请求为切换请求(handover request)或者测量配置请求消息。
402,目标基站B向源基站A发送第一确认消息。该第一确认消息中包括目标基站B下的第一小区的CSI-RS配置信息。比如,若该第一请求为切换请求,则该第一确认消息是handover request ACK。又比如,若该第一请求为测量配置请求消息,则该第一确认消息是测量配置请求确认消息。
403,源基站A向UE发送配置信息。该配置信息用于指示UE对第一小区的CSI-RS和SSB进行测量。比如,该配置信息携带在RRC重配置消息或者RRC连接重配置消息中。
可选地,该配置信息包括差值门限。本申请实施例以配置信息包括差值门限为例进行描述,配置信息的其它实现方式可以参考步骤S320、S330中关于配置信息的描述,为了简洁,这里不再赘述。
404,UE对(基站C下的)第一小区的SSB和CSI-RS进行测量。
405,UE确定SSB的测量值与CSI-RS的测量值的差值大于差值门限。
由于基站C为伪基站,复制了目标基站B下的真实小区的SSB配置信息,并根据该SSB配置信息发送复制的SSB信号,因此UE可以测量到第一小区的SSB信号并确定SSB的测量值。但是由于伪基站C无法或者难以复制目标基站B下真实小区的CSI-RS配置信息,伪基站C无法发送CSI-RS信号或者无法发送和CSI-RS配置信息完全一致的CSI-RS信号,因此UE无法在第一小区下测量到CSI-RS信号,从而无法确定CSI-RS的测量值,或者UE在第一小区下仅可以测量到部分的CSI-RS信号,从而使得UE确定CSI-RS的测量值较低。当UE确定第一小区的SSB的测量值与CSI-RS的测量值的差值大于差值门限,UE确定第一报告。
406,UE向源基站A发送第一报告。可选地,第一报告可以是测量报告(measure report)。该测量报告包括第一小区的标识信息。可选地,该测量报告还包括该第一小区的SSB的测量值与CSR-RS的测量值。
407,源基站A根据第一报告判断存在伪基站。比如,本实施例中的基站C是伪基站。该基站C复制了目标基站B下的真实小区的信息。
需要说明的是,在上述流程中,步骤401与402可以是可选的。也就是说,源基站A可以不与目标基站B交互CSI-RS配置,可以协议预定义该CSI-RS配置。
应理解,图4中的例子仅仅是为了便于本领域技术人员理解本申请实施例,并非要将本申请实施例限于例示的具体场景。本领域技术人员根据图4的例子,显然可以进行各种等价的修改或变化,这样的修改或变化也落入本申请实施例的范围内。
目前3GPP引入了移动鲁棒性优化MRO的机制,可以通过终端设备记录和上报移动性失败过程中的参数(比如移动性失败过程中所经历的各个小区的参数以及时间信息)给 网络设备,使得网络设备可以确定发生失败的小区,以便更好的优化移动性参数。如果是由于伪基站的存在导致的切换失败,终端设备也会记录RLF报告。而伪基站导致的切换失败并不是因为网络的移动性参数设置不合理而导致的。在这种情况下,网络设备不能识别RLF报告是否是伪基站导致的切换失败而触发的RLF报告,还会根据RLF报告调整移动性参数,可能会导致网络的切换失败更多。有鉴于此,本申请提出了另一实施例,以辅助网络设备识别RLF报告是否是伪基站导致的。
图5示出了根据本申请另一实施例的用于通信的方法500的示意性交互图。可以理解的,图5的实施例可以和本申请其他实施例(比如,前文图3或图4的方法)组合实施,也可以各自独立实施,对此不作具体限定。
如图5所示,该方法500包括:
S510,第一网络设备向终端设备发送第一消息,第一消息用于指示该终端设备切换到目标小区。对应的,终端设备接收来自第一网络设备的第一消息。
S520,终端设备确定发生连接失败。
连接失败包括切换失败HOF和无线链路失败RLF两种类型。其中,HOF指该终端设备未成功切换到目标小区时发生的连接失败,或者,该终端设备切换到目标小区的过程中发生的连接失败。RLF指终端设备成功切换到目标小区后发生的连接失败。
对于HOF场景,终端设备无法和目标小区所属的网络设备间完成切换,无法确定目标小区所属的网络设备是否可以对终端设备发送的经过安全保护的信息进行解安全保护,因此无法确定该HOF是否是由于切换到伪基站而造成。因此,对于失败类型为HOF的RLF报告,需要进一步确定该RLF报告是否是由于切换到真实的目标小区的过程中发生连接失败而记录的。
对于RLF场景,终端设备完成了和目标小区的切换,即目标小区所属的网络设备可以对终端设备发送的经过安全保护的信息进行解安全保护,因此可以证明该目标小区所属的网络设备为真基站。因此,失败类型为RLF的RLF报告都是由于切换到真实的目标小区的过程中发生连接失败而记录的。
这里,终端设备有可能是切换到了伪基站,而导致未成功切换到目标小区所属的网络设备,或者,也有可能是在切换到目标小区的过程中发生了连接失败,而导致未成功切换到目标小区所属的网络设备。
S530,终端设备确定指示信息,该指示信息用于第一网络设备确定终端设备测得的小区(该小区可能是目标小区,也可能是其他小区)的测量结果的类型,该测量结果的类型包括基于信道状态信息参考信号CSI-RS的测量结果类型或基于同步信号块SSB的测量结果类型。
可以理解的,作为一种实现方式,当失败类型为HOF时,终端设备执行步骤S530。
可选地,该指示信息用于第一网络设备确定终端设备向第一网络设备发送的测量报告中携带的小区的测量结果的类型。或者,该指示信息用于第一网络设备确定终端设备触发测量报告的小区的测量结果的类型。
比如,若第一网络设备指定终端设备测量SSB,在终端设备测得小区的测量结果满足预设条件(比如,SSB测量值满足一定门限)时,触发终端设备向第一网络设备发送测量报告,相应的,终端设备在发送测量报告(在测量报告中增加指示信息)时,可以通过指 示信息向第一网络设备指示触发测量报告的测量结果的类型为SSB。又比如,若第一网络设备指定终端设备测量CSI-RS,在终端设备测得小区的测量结果满足预设条件(比如,CSI-RS测量值满足一定门限)时,触发终端设备向第一网络设备发送测量报告,相应的,终端设备在发送测量报告(在测量报告中增加指示信息)时,可以通过指示信息向第一网络设备指示触发测量报告的测量结果的类型为SSB。
举例来说,指示信息可以通过1比特表示,不同的取值代表不同的测量结果类型。比如,当取值为0时,代表测量结果的类型为基于SSB的测量结果类型,当取值为1时,代表测量结果类型为基于CSI-RS的测量结果类型。或者,当取值为1时,代表测量结果的类型为基于SSB的测量结果类型,当取值为0时,代表测量结果类型为基于CSI-RS的测量结果类型。
举例来说,指示信息通过1比特表示,该1比特直接指示测量结果的类型。比如,基于CSI-RS的测量结果类型,或者,基于SSB的测量结果类型。
可选地,指示信息是否存在也可以用于代表不同的测量结果类型。比如,若指示信息存在,代表测量结果的类型为基于SSB的测量结果类型,若指示信息不存在,代表测量结果类型为基于CSI-RS的测量结果类型。又比如,若指示信息不存在,代表测量结果的类型为基于SSB的测量结果类型,若指示信息存在,代表测量结果类型为基于CSI-RS的测量结果类型。
S540,终端设备向第一网络设备发送该指示信息。对应的,第一网络设备接收指示信息。
可以理解的,终端设备向第一网络设备发送该指示信息,作为一种实现方式,终端设备通过第一网络设备下的小区向第一网络设备发送该指示信息。或者,作为又一种实现方式,终端设备通过其它网络设备下的小区向其它网络设备发送该指示信息,其它网络设备向第一网络设备发送该指示信息。
可选地,该指示信息可以携带于MRO报告中,也可以携带于无线链路失败RLF报告中,也可以携带于其他终端设备与网络设备之间交互的消息中,对此不作限定。
示例性地,终端设备在记录RLF报告时,可以在RLF报告中携带该指示信息,以便于第一网络设备基于指示信息识别RLF报告。这里,RLF报告是MRO机制中终端设备记录的报告。应理解,若用于MRO机制中的术语“RLF报告”发生了变化,比如,“MRO报告”,本申请实施例的技术方案依然适用,对此不作具体限定。
在本申请实施例中,终端设备在确定发生连接失败时,通过确定指示信息,该指示信息用于第一网络设备确定终端设备测得的小区的测量结果的类型,并将该指示信息发送给第一网络设备,以辅助第一网络设备基于该指示信息判断RLF报告是否为:因伪基站而导致的切换失败下终端设备记录的RLF报告。
可选地,该方法500还包括:第一网络设备根据该指示信息,识别RLF报告。
终端设备通过指示信息指示测量结果的类型,比如,基于CSI-RS的测量结果类型,或者,基于SSB的测量结果类型。第一网络设备基于指示信息指示的测量结果的类型,可以判断RLF报告是否为:因伪基站而导致的切换过程中的连接失败,终端设备记录的RLF报告。换句话说,第一网络设备在得到指示信息后,可以基于指示信息判断RLF报告是否需要忽略。如果第一网络设备确定出终端设备上报的RLF报告,是因伪基站而导 致的连接失败场景下终端设备记录的RLF报告,则第一网络设备可以忽略该RLF报告,无需根据该RLF报告优化移动性参数。如果终端设备上报的RLF报告是向真实的目标小区切换时发生连接失败后终端设备记录的RLF报告,则第一网络设备需要根据该RLF报告优化移动性参数,以保证终端设备能够成功切换到目标小区。比如,若第一网络设备根据指示信息确定测量结果类型为基于CSI-RS的测量结果类型,可以确定RLF报告是终端设备向真实的目标小区切换时发生连接失败后终端设备记录的报告。若第一网络设备根据指示信息确定测量结果类型为基于SSB的测量结果类型,则第一网络设备无法确定RLF报告是否是因伪基站而导致的连接失败场景下终端设备记录的报告;可选地,作为一种实现方式,第一网络设备可以忽略该RLF报告。
可选地,作为一种实现方式,第一网络设备根据该指示信息,识别RLF报告,包括:该第一网络设备根据该终端设备发生切换失败时的位置信息和/或RLF报告中的失败类型,进一步识别该RLF报告,该失败类型包括切换失败HOF和/或无线链路失败RLF。比如,第一网络设备根据指示信息确定测量结果类型为基于CSI-RS的测量结果类型,和/或,终端设备发生连接失败的失败类型为RLF时,则该RLF报告为切换到真实的目标小区发生连接失败后终端设备记录的RLF报告,可以将切换到真实的目标小区发生连接失败后记录的RLF报告记作“第一类RLF报告”,该第一类RLF报告为有效的,即第一网络设备需要基于该第一类RLF报告优化移动性参数。若第一网络设备根据指示信息确定测量结果类型为基于SSB的测量结果类型,且终端设备发生连接失败的失败类型为HOF,由于无法确定该RLF报告是否为切换到真实的目标小区发生连接失败后终端设备记录的RLF报告,可以将这类RLF报告记作“第二类RLF报告”,第一网络设备可以认为该第二类RLF报告无效或者忽略该第二类RLF报告,即不使用该第二类RLF报告优化移动性参数。
对于第二类RLF报告,示例性地,若RLF报告中包括指示信息、失败类型和位置信息,第一网络设备可以进一步结合位置信息识别第二类RLF报告的有效性。可选地,第一网络设备可以根据RLF报告中的位置信息,确定位置范围信息。比如,第一网络设备可以根据RLF报告中的位置信息确定第一位置范围,若在第一位置范围内的RLF报告中存在第一类RLF报告或者第一位置范围内存在切换成功的情况,则第一网络设备可以确定RLF报告中的位置信息在第一位置范围内的第二类RLF报告有效;若根据RLF报告中的位置信息,确定在第二位置范围内的RLF报告没有第一类RLF报告或者都为第二类RLF报告,则第一网络设备可以结合RLF报告中的位置信息,确定位置信息在第二位置范围内的第二类RLF报告无效。进一步的,若根据RLF报告中的位置信息,确定在第二位置范围内的RLF报告中没有第一类RLF报告或者仅存在第二类RLF报告,且在第二位置范围内没有终端设备切换成功的场景,则第一网络设备可以结合RLF报告中的位置信息,确定位置信息在第二位置范围内的第二类RLF报告无效。
这里以图6中的场景进行说明。如图6所示,伪基站C复制了(目标)基站B下的小区B(可以称作真实小区),复制的伪小区B(复制的伪小区B为图6中的小区C)和真实的小区B均为小区A的邻区。比如,将小区A与伪基站C下的小区C的重叠区域记作区域A,将小区A与小区B的重叠区域记作区域B。若UE位于区域A,则可能存在UE切换到伪基站C的场景,而伪基站C无法识别UE的响应消息,因此UE无法在伪基 站C完成切换。
对于在区域A中的UE发生的失败,UE记录RLF报告;对于在区域B中的UE发生的失败,UE记录RLF报告。源基站A可以基于RLF报告中的信息识别这两种RLF报告。若RLF报告中携带的指示信息指示测量结果的类型是CSI-RS和/或失败类型是RLF,则源基站A认为RLF报告是有效报告或真报告;若RLF报告中携带的指示信息指示测量结果的类型是SSB,则源基站A结合UE上报的失败类型进行进一步识别。若UE上报的RLF报告的失败类型为HOF,则源基站A无法识别该RLF报告是否是由于切换到伪基站发生连接失败后终端设备记录的报告。可选地,源基站A可以忽略测量结果的类型是SSB且失败类型为HOF的RLF报告;或者,源基站A可以结合位置信息作进一步判断。
举例来说,若RLF报告中包括位置信息,如果源基站A基于位置信息确定区域A,并确定位置信息在区域A范围内的RLF报告中的测量结果类型是SSB,且失败类型为HOF,则源基站A认为在区域A中的UE是切换到伪基站C而导致的切换失败,因此忽略位置信息位于区域A范围内的RLF报告,即忽略区域A对应的RLF报告;进一步的,源基站A确定区域A内不存在有效的RLF报告和/或不存在成功切换到基站B(即实际上是切换到了伪基站C)的场景,且区域A范围内的RLF报告的测量结果类型都是SSB,以及,失败类型都为HOF,则源基站A认为区域A中的UE是切换到伪基站C而导致的切换失败,因此忽略RLF报告中的位置信息位于区域A范围内的RLF报告,即忽略区域A对应的RLF报告。
举例来说,若RLF报告中包括位置信息,如果源基站A基于位置信息确定区域B,并确定位置信息在区域B范围内的至少2个RLF报告中的测量结果类型是SSB,且失败类型既包括HOF又包括RLF时,则源基站A认为在区域B中的UE是由于连接失败而导致的切换失败,因此可以基于上述RLF报告优化移动性参数。可选地,若源基站A基于位置信息确定区域B范围内的RLF报告存在有效的RLF报告和/或存在成功切换的场景,源基站A可以认为RLF报告中的位置信息位于区域B范围内的RLF报告有效。
在本申请实施例中,终端设备可以通过第一网络设备下的小区向第一网络设备发送指示信息,也可以通过其他网络设备将指示信息转发给第一网络设备。可以理解的,终端设备向第一网络设备发送该指示信息,作为一种实现方式,终端设备通过第一网络设备下的小区向第一网络设备发送该指示信息。或者,作为又一种实现方式,终端设备通过其它网络设备下的小区向其它网络设备发送该指示信息,然后其它网络设备向第一网络设备发送该指示信息。下面将具体描述各个实现方式。
可选地,终端设备向第一网络设备发送指示信息,包括:终端设备通过第二网络设备向第一网络设备发送指示信息,该第二网络设备为终端设备的服务网络设备。
这里,第二网络设备与第一网络设备可以相同,也可以不同,对此不作限定。若第一网络设备与第二网络设备不同,则终端设备可以先向第二网络设备发送该指示信息,比如,第二网络设备是服务基站。
可选地,终端设备向第一网络设备发送指示信息,包括:终端设备通过该第二网络设备和第三网络设备向该第一网络设备发送该指示信息,该第三网络设备是该目标小区所属的发生连接失败的网络设备。这里,终端设备向第二网络设备发送指示信息;第二网络设备向第三网络设备发送指示信息;第三网络设备向第一网络设备发送指示信息。
这里,第三网络设备是发生连接失败的网络设备。终端设备可以先向第二网络设备(比如,服务基站)发送RLF报告,该RLF报告包括指示信息。然后,第二网络设备向第三网络设备(目标小区所属的发生失败的网络设备)发送该指示信息。比如,第二网络设备基于接收到的RLF报告,确定第三网络设备下的小区发生了连接失败,则第二网络设备向第三网络设备发送该RLF报告,该RLF报告包括该指示信息。最后,第三网络设备向第一网络设备发送该指示信息。比如,第三网络设备基于接收到的RLF报告确定是第一网络设备的切换参数设置不合理造成的切换失败,则第三网络设备向第一网络设备发送该指示信息。这里需要说明的是,各个网络设备之间交互该指示信息时,可以将指示信息携带于各自的交互消息中,本申请实施例对交互消息的具体内容不作限定。可以理解的,本申请实施例中的各个网络设备(第一网络设备、第二网络设备或第三网络设备)可以上文描述的网络设备中的任一种,比如,可以为DU、CU、CU-CP等等,对此不作具体限定。
以图7中的切换场景为例说明网络设备之间交互指示信息过程。图7是以终端设备为UE,第一网络设备是源基站A,第二网络设备是目标基站C,第三网络设备是目标基站B为例进行说明的。如图7所示,包括:
701,源基站A向UE发送第一命令,该第一命令用于指示UE向目标基站B切换。第一命令可以为RRC重配置消息,或者RRC连接重配置消息。
702,UE向目标基站B切换过程中发生切换失败HOF。
703,UE记录RLF报告,RLF报告中包括指示信息。
比如,当UE确定连接失败类型为HOF时,则UE在RLF报告中携带指示信息。
704,UE尝试重建连接,并向目标基站C发送RLF报告,RLF报告中包括指示信息。
可以理解的,目标基站C可以是成功重建连接的小区所属的基站,或者其它建立连接的小区所属的基站。应理解,目标基站C可以是源基站A,或者是目标基站B,或者是不同于源基站A和目标基站B的其他基站,图7中以目标基站C不同于源基站A和目标基站B为例进行描述。
应理解,对于目标基站C是源基站A的情形,源基站A是UE成功重建连接的小区所属的基站,源基站A在收到包括指示信息的RLF报告后,可以向目标基站发送RLF指示,然后目标基站B向源基站A发送HO报告。该HO报告包括RLF报告,该RLF报告中包括指示信息。
705,目标基站C向目标基站B发送RLF指示。RLF指示包括RLF报告,该RLF报告中包括指示信息。
706,目标基站B向源基站A发送HO报告。该HO报告包括RLF报告,该RLF报告中包括指示信息。
或者,可选地,目标基站C可以直接向源基站A发送HO报告。该HO报告包括RLF报告,该RLF报告中包括指示信息。比如,目标基站C和目标基站B相同的场景,目标基站C可以直接向源基站A发送HO报告。
应理解,图7中的例子仅仅是为了便于本领域技术人员理解本申请实施例,并非要将本申请实施例限于例示的具体场景。本领域技术人员根据图7的例子,显然可以进行各种等价的修改或变化,这样的修改或变化也落入本申请实施例的范围内。
本申请还提供了一种用于检测伪基站的方式。图8示出了根据本申请又一实施例的用 于检测伪基站的方法800的示意性流程图。应理解,图8所示的方法可以与上文各个实施例组合使用,也可以独立使用,对此不作具体限定。比如,方法800与方法500可以组合使用,终端设备在RLF报告中记录记录干扰信号质量。可选地,如图8所示,作为一种实现方式,所述方法800包括:
S801,终端设备检测到RLF时,对干扰信号质量与小区信号质量进行比较。
S802,若干扰信号质量与小区信号质量满足预设条件,终端设备记录干扰信号的信号质量。
具体而言,终端设备在检测到RLF时,可以对干扰信号质量与小区信号质量作比较,在干扰信号质量与小区信号质量满足预设条件的情况下,终端设备可以将干扰信号的信号质量记录下来,然后将干扰信号的信号质量发送给网络设备。这种方式有助于网络设备识别仅发送干扰信号以干扰终端设备的当前小区的伪基站,例如,该伪基站通过发射高功率的干扰信号,以干扰终端设备的正常数据,造成终端设备发生RLF。
可选地,干扰信号质量的测量类型与小区信号质量的测量类型不同。例如,干扰信号质量的测量类型可以是以下中的任一项:RSSI、RSRQ、SINR;小区信号质量的测量类型可以为RSRP。应理解,这里的举例只是便于本领域技术人员理解,并不对本申请实施例构成限定,干扰信号质量的测量类型和小区信号质量的测量类型也可以是其他测量类型,只要满足干扰信号质量的测量类型和小区信号质量的测量类型不同即可。
可选地,干扰信号质量与小区信号质量满足预设条件,包括:干扰信号质量高于第一门限,或者,干扰信号质量和小区信号质量高于第二门限。这里,第一门限和/或第二门限可以是网络设备配置的,也可以是预定义的,对此不作限定。
可选地,终端设备可以在RLF报告中记录干扰信号质量。终端设备向网络设备发送记录有干扰信号质量的RLF报告。网络设备在得到RLF报告后,可以得知造成RLF的原因在于干扰太大,可以和相邻网络设备进行干扰协调管理,并确定是否存在伪基站。可选地,RLF报告中还可以包括小区标识,用于指示干扰信号质量对应的小区信息。小区标识的解释可以参考前文的描述,为了简洁,这里不作赘述。
应理解,本申请实施例的各个方案可以进行合理的组合使用,并且实施例中出现的各个术语的解释或说明可以在各个实施例中互相参考或解释,对此不作限定。
还应理解,在本申请的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定。上述各个过程涉及的各种数字编号或序号仅为描述方便进行的区分,而不应对本申请实施例的实施过程构成任何限定。
上文结合图1至图8详细描述了根据本申请实施例的通信方法。下面将结合图9至图11描述根据本申请实施例的通信装置。应理解,方法实施例所描述的技术特征同样适用于以下装置实施例。
图9是本申请实施例提供的用于通信的装置的示意性框图。如图9所示,该装置1000可以包括收发单元1100和处理单元1200。
在一种可能的设计中,该通信装置1000可对应于上文方法实施例中的终端设备,例如,可以为终端设备,或者配置于终端设备中的芯片。
具体地,该通信装置1000可对应于根据本申请实施例的方法300或方法500中的终端设备,该通信装置1000可以包括用于执行图3中方法300中的终端设备执行的方法的 单元,或者,执行图5中方法500中终端设备执行的方法的单元,或者,执行图8中方法800中终端设备执行的方法的单元。并且,该通信装置1000中的各单元和上述其他操作或功能分别为了实现图3中方法300中的终端设备相应流程,或者,分别为了实现图5中方法500中的终端设备相应流程,或者,分别为了实现图8中方法800中的终端设备相应流程。
在一种实现方式中,收发单元1100和处理单元1200可分别用于:
收发单元1100,用于接收来自第一网络设备的配置信息。
处理单元1200,用于根据所述配置信息,对第一小区发送的信道状态信息参考信号CSI-RS和同步信号块SSB进行测量;用于确定所述第一小区的所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件。
所述收发单元1100还用于,向所述第一网络设备发送第一报告,所述第一报告包括所述第一小区的标识信息。
可选地,所述第一报告还包括所述小区的所述CSI-RS的测量结果和/或所述SSB的测量结果。
可选地,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:所述CSI-RS的测量值与所述SSB的测量值的差值满足差值门限。
可选地,所述配置信息包括所述差值门限。
可选地,所述收发单元1100还用于:接收来自所述第一网络设备的系统信息,所述系统信息包括所述差值门限。
可选地,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:
所述SSB的测量值满足第一质量门限;所述CSI-RS的测量值满足第二质量门限。
可选地,所述配置信息包括所述第一质量门限和所述第二质量门限。
可选地,所述收发单元1100还用于:接收来自所述第一网络设备的系统信息,所述系统信息所述第一质量门限和所述第二质量门限。
可选地,所述测量值为以下中的任一项:
接收信号码功率RSCP、参考信号接收功率RSRP、参考信号接收质量RSRQ、信噪比SNR、信号与干扰噪声比SINR、参考信号强度指示RSSI。
或者,在另一种实现方式中,收发单元1100和处理单元1200可分别用于:
收发单元1100,用于接收来自第一网络设备的第一消息,所述第一消息用于指示所述终端设备切换到目标小区;
处理单元1200,用于确定发生连接失败;还用于确定指示信息,所述指示信息用于所述第一网络设备确定终端设备测得的小区的测量结果的类型,所述测量结果的类型包括基于信道状态信息参考信号CSI-RS的测量结果类型或基于同步信号块SSB的测量结果类型;
所述收发单元1100还用于,向所述第一网络设备发送所述指示信息。
可选地,所述收发单元1100用于向第一网络设备发送所述指示信息,包括:
通过第二网络设备向所述第一网络设备发送所述指示信息,所述第二网络设备为所述终端设备的服务网络设备。
可选地,所述收发单元1100用于通过第二网络设备向所述第一网络设备发送所述指 示信息,包括:
通过所述第二网络设备和第三网络设备向所述第一网络设备发送所述指示信息,所述第三网络设备是所述目标小区所属的发生连接失败的网络设备。
可选地,所述指示信息携带于移动鲁棒性优化RLF报告或者无线链路失败RLF报告中。
可选地,所述RLF报告还包括所述终端设备发生切换小区失败的位置信息和/或失败类型,其中,所述失败类型包括切换失败HOF和/或无线链路失败RLF。
应理解,各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明,为了简洁,在此不再赘述。
还应理解,该通信装置1000为终端设备时,该通信装置1000中的收发单元1100可对应于图10中示出的终端设备2000中的收发器2020,该通信装置1000中的处理单元1200可对应于图10中示出的终端设备2000中的处理器2010。
还应理解,该通信装置1000为配置于终端设备中的芯片时,该通信装置1000中的收发单元1200可以为输入/输出接口。
在另一种可能的设计中,该通信装置1000可对应于上文方法实施例中的网络设备,例如,可以为网络设备,或者配置于网络设备中的芯片。
具体地,该通信装置1000可对应于根据本申请实施例的方法300中的第一网络设备,该通信装置1000可以包括用于执行图3中方法300中的第一网络设备执行的方法的单元,或者,执行图5中方法500中第一网络设备执行的方法的单元。并且,该通信装置1000中的各单元和上述其他操作或功能分别为了实现图3中方法300中的第一网络设备相应流程,或者,分别为了实现图5中方法500中的第一网络设备相应流程。
还应理解,该通信装置1000为网络设备时,该通信装置1000中的收发单元1100可对应于图11中示出的网络设备3000中的收发器3200,该通信装置1000中的处理单元1200可对应于图11中示出的网络设备3000中的处理器3100。
还应理解,该通信装置1000为配置于网络设备中的芯片时,该通信装置1000中的收发单元1100可以为输入/输出接口。
在一种实现方式中,收发单元1100,用于向终端设备发送配置信息,所述配置信息用于配置所述终端设备对第一小区发送的信道状态信息参考信号CSI-RS和同步信号块SSB进行测量;所述收发单元1100还用于,接收来自所述终端设备的第一报告,所述第一报告包括所述第一小区的标识信息,所述第一小区的所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件。
可选地,所述第一报告还包括所述第一小区的所述CSI-RS的测量结果和所述SSB的测量结果。
可选地,所述装置还包括:处理单元1200,用于根据所述第一报告,确定所述第一小区对应的第二网络设备是伪基站。
可选地,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:所述CSI-RS的测量值与所述SSB的测量值的差值满足差值门限。
可选地,所述配置信息包括所述差值门限。
可选地,所述收发单元1100还用于:发送系统信息,所述系统信息包括所述差值门 限。
可选地,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:
所述SSB的测量值满足第一质量门限;所述CSI-RS的测量值满足第二质量门限。
可选地,所述配置信息包括所述第一质量门限和所述第二质量门限。
可选地,所述收发单元1100还用于:发送系统信息,所述系统信息包括所述第一质量门限和所述第二质量门限。
可选地,所述测量值为以下中的任一项:
接收信号码功率RSCP、参考信号接收功率RSRP、参考信号接收质量RSRQ、信噪比SNR、信号与干扰噪声比SINR、参考信号强度指示RSSI。
可选地,所述收发单元1100还用于:接收来自第三网络设备的CSI-RS配置信息。
或者,在另一种实现方式中,收发单元1100用于:用于向终端设备发送第一消息,所述第一消息用于指示信息所述终端设备切换到目标小区;所述收发单元1100还用于,接收指示信息,所述指示信息用于确定终端设备测得的小区的测量结果的类型,所述测量结果的类型包括基于CSI-RS的测量结果类型或基于SSB的测量结果类型。
可选地,所述装置1000还包括:
处理单元1200,用于根据所述指示信息,识别RLF报告。
可选地,所述小区的测量结果是基于SSB的测量结果;
其中,所述处理单元1200用于根据所述指示信息,识别RLF报告,包括:
根据所述终端设备发生切换小区失败的位置信息和/或失败类型,识别所述RLF报告,所述失败类型包括切换失败HOF和/或无线链路失败RLF。
可选地,所述小区的测量结果是基于CSI-RS的测量结果;
其中,所述第一网络设备根据所述指示信息,识别RLF报告,包括:
所述第一网络设备确定所述RLF报告为:所述终端设备向目标小区切换失败时生成的报告。
可选地,所述收发单元1100用于接收指示信息,包括:
接收来自所述终端设备的所述指示信息。
可选地,所述收发单元1100用于接收指示信息,包括:
接收来自第二网络设备的所述指示信息,所述第二网络设备为所述终端设备的服务网络设备,所述指示信息是所述终端设备发送给所述第二网络设备的;
或者,接收来自第三网络设备的所述指示信息,其中,所述指示信息是第二网络设备发送给所述第三网络设备的,所述第二网络设备为所述终端设备的服务网络设备,所述第三网络设备是所述目标小区所属的发生连接失败的网络设备。
可选地,所述指示信息携带于所述RLF报告中。
可选地,所述RLF报告还包括所述终端设备发生切换小区失败的位置信息和/或失败类型,其中,所述失败类型包括切换失败HOF和/或无线链路失败RLF。
应理解,各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明,为了简洁,在此不再赘述。
还应理解,该通信装置1000为网络设备时,该通信装置1000中的收发单元1100可对应于图11中示出的网络设备3000中的收发单元3100,该通信装置1000中的处理单元 1200可对应于图11中示出的网络设备3000中的处理器3202。
还应理解,该通信装置1000为配置于终端设备中的芯片时,该通信装置1000中的收发单元1200可以为输入/输出接口。
图10是本申请实施例提供的终端设备2000的结构示意图。该终端设备2000可应用于如图1所示的系统中,执行上述方法实施例中终端设备的功能。如图10所示,该终端设备2000包括处理器2010和收发器2020。可选地,该终端设备2000还包括存储器2030。其中,处理器2010、收发器2002和存储器2030之间可以通过内部连接通路互相通信,传递控制或数据信号,该存储器2030用于存储计算机程序,该处理器2010用于从该存储器2030中调用并运行该计算机程序,以控制该收发器2020收发信号。可选地,终端设备2000还可以包括天线2040,用于将收发器2020输出的上行数据或上行控制信令通过无线信号发送出去。
上述处理器2010可以和存储器2030可以合成一个处理装置,处理器2010用于执行存储器2030中存储的程序代码来实现上述功能。具体实现时,该存储器2030也可以集成在处理器2010中,或者独立于处理器2010。该处理器2010可以与图9中的处理单元对应。
上述收发器2020可以与图9中的通信单元对应,也可以称为收发单元。收发器2020可以包括接收器(或称接收机、接收电路)和发射器(或称发射机、发射电路)。其中,接收器用于接收信号,发射器用于发射信号。
应理解,图10所示的终端设备2000能够实现图3或图5或图8所示方法实施例中涉及终端设备的各个过程。终端设备2000中的各个模块的操作或功能,分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述,为避免重复,此处适当省略详细描述。
上述处理器2010可以用于执行前面方法实施例中描述的由终端设备内部实现的动作,而收发器2020可以用于执行前面方法实施例中描述的终端设备向网络设备发送或从网络设备接收的动作。具体请见前面方法实施例中的描述,此处不再赘述。
可选地,上述终端设备2000还可以包括电源2050,用于给终端设备中的各种器件或电路提供电源。
除此之外,为了使得终端设备的功能更加完善,该终端设备2000还可以包括输入单元2060、显示单元2070、音频电路2080、摄像头2090和传感器2100等中的一个或多个,所述音频电路还可以包括扬声器2082、麦克风2084等。
图11是本申请实施例提供的网络设备的结构示意图,例如可以为基站的结构示意图。该基站3000可应用于如图1所示的系统中,执行上述方法实施例中网络设备的功能。如图所示,该基站3000可以包括一个或多个射频单元,如远端射频单元(remote radio unit,RRU)3100和一个或多个基带单元(BBU)(也可称为分布式单元(DU))3200。所述RRU 3100可以称为收发单元或通信单元,与图9中的收发单元1100对应。可选地,该收发单元3100还可以称为收发机、收发电路、或者收发器等等,其可以包括至少一个天线3101和射频单元3102。可选地,收发单元3100可以包括接收单元和发送单元,接收单元可以对应于接收器(或称接收机、接收电路),发送单元可以对应于发射器(或称发射机、发射电路)。所述RRU 3100部分主要用于射频信号的收发以及射频信号与基带信号的转 换。所述BBU 3200部分主要用于进行基带处理,对基站进行控制等。所述RRU 3100与BBU 3200可以是物理上设置在一起,也可以物理上分离设置的,即分布式基站。
所述BBU 3200为基站的控制中心,也可以称为处理单元,可以与图9中的处理单元1200对应,主要用于完成基带处理功能,如信道编码,复用,调制,扩频等等。例如所述BBU(处理单元)可以用于控制基站执行上述方法实施例中关于网络设备的操作流程,例如,生成CSI上报的配置信息等。
在一个示例中,所述BBU 3200可以由一个或多个单板构成,多个单板可以共同支持单一接入制式的无线接入网(如LTE网),也可以分别支持不同接入制式的无线接入网(如LTE网,5G网或其他网)。所述BBU 3200还包括存储器3201和处理器3202。所述存储器3201用以存储必要的指令和数据。所述处理器3202用于控制基站进行必要的动作,例如用于控制基站执行上述方法实施例中关于网络设备的操作流程。所述存储器3201和处理器3202可以服务于一个或多个单板。也就是说,可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
应理解,图11所示的基站3000能够实现前述方法实施例中涉及网络设备的各个过程。基站3000中的各个模块的操作或功能,分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述,为避免重复,此处适当省略详细描述。
上述BBU 3200可以用于执行前面方法实施例中描述的由网络设备内部实现的动作,而RRU 3100可以用于执行前面方法实施例中描述的网络设备向终端设备发送或从终端设备接收的动作。具体请见前面方法实施例中的描述,此处不再赘述。
根据本申请实施例提供的方法,本申请还提供一种计算机程序产品,该计算机程序产品包括:计算机程序代码,当该计算机程序代码在计算机上运行时,使得该计算机执行图3至图5,以及图7和图8所示实施例中终端设备侧的方法。
根据本申请实施例提供的方法,本申请还提供一种计算机可读介质,该计算机可读介质存储有程序代码,当该程序代码在计算机上运行时,使得该计算机执行图3至图5,以及图7所示实施例中第一网络设备侧的方法。
根据本申请实施例提供的方法,本申请还提供一种系统,其包括前述的一个或多个终端设备以及一个或多个网络设备。
本申请实施例还提供了一种处理装置,包括处理器和接口;所述处理器用于执行上述任一方法实施例中的通信的方法。
应理解,上述处理装置可以是一个芯片。例如,该处理装置可以是现场可编程门阵列(field programmable gate array,FPGA),可以是通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现成可编程门阵列(field programmable gate array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件,还可以是系统芯片(system on chip,SoC),还可以是中央处理器(central processor unit,CPU),还可以是网络处理器(network processor,NP),还可以是数字信号处理电路(digital signal processor,DSP),还可以是微控制器(micro controller unit,MCU),还可以是可编程控制器(programmable logic device,PLD)或其他集成芯片。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。 通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,高密度数字视频光盘(digital video disc,DVD))、或者半导体介质(例如,固态硬盘(solid state disc,SSD))等。
上述各个装置实施例中网络设备与终端设备和方法实施例中的网络设备或终端设备完全对应,由相应的模块或单元执行相应的步骤,例如通信单元(收发器)执行方法实施例中接收或发送的步骤,除发送、接收外的其它步骤可以由处理单元(处理器)执行。具体单元的功能可以参考相应的方法实施例。其中,处理器可以为一个或多个。
在本说明书中使用的术语“部件”、“模块”、“系统”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如,部件可以是但不限于,在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序或计算机。通过图示,在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程或执行线程中,部件可位于一个计算机上或分布在2个或更多个计算机之间。此外,这 些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地系统、分布式系统或网络间的另一部件交互的二个部件的数据,例如通过信号与其它系统交互的互联网)的信号通过本地或远程进程来通信。
应理解,说明书通篇中提到的“实施例”意味着与实施例有关的特定特征、结构或特性包括在本申请的至少一个实施例中。因此,在整个说明书各个实施例未必一定指相同的实施例。此外,这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
应理解,在本申请实施例中,编号“第一”、“第二”…仅仅为了区分不同的对象,比如为了区分不同的网络设备,并不对本申请实施例的范围构成限制,本申请实施例并不限于此。
还应理解,在本申请中,“当…时”、“若”以及“如果”均指在某种客观情况下网元会做出相应的处理,并非是限定时间,且也不要求网元实现时一定要有判断的动作,也不意味着存在其它限定。
还应理解,在本申请各实施例中,“A对应的B”表示B与A相关联,根据A可以确定B。但还应理解,根据A确定B并不意味着仅仅根据A确定B,还可以根据A和/或其它信息确定B。
还应理解,本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本申请中出现的类似于“项目包括如下中的一项或多项:A,B,以及C”表述的含义,如无特别说明,通常是指该项目可以为如下中任一个:A;B;C;A和B;A和C;B和C;A,B和C;A和A;A,A和A;A,A和B;A,A和C,A,B和B;A,C和C;B和B,B,B和B,B,B和C,C和C;C,C和C,以及其他A,B和C的组合。以上是以A,B和C共3个元素进行举例来说明该项目的可选用条目,当表达为“项目包括如下中至少一种:A,B,……,以及X”时,即表达中具有更多元素时,那么该项目可以适用的条目也可以按照前述规则获得。
可以理解的,本申请实施例中,终端设备和/或网络设备可以执行本申请实施例中的部分或全部步骤,这些步骤或操作仅是示例,本申请实施例还可以执行其它操作或者各种操作的变形。此外,各个步骤可以按照本申请实施例呈现的不同的顺序来执行,并且有可能并非要执行本申请实施例中的全部操作。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元 的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (30)
- 一种用于通信的方法,其特征在于,包括:终端设备接收来自第一网络设备的配置信息;所述终端设备根据所述配置信息,对第一小区发送的信道状态信息参考信号CSI-RS和同步信号块SSB进行测量;所述终端设备确定所述第一小区的所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件;所述终端设备向所述第一网络设备发送第一报告,所述第一报告包括所述第一小区的标识信息。
- 根据权利要求1所述的方法,其特征在于,所述第一报告还包括所述第一小区的所述CSI-RS的测量结果和/或所述SSB的测量结果。
- 根据权利要求1或2所述的方法,其特征在于,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:所述CSI-RS的测量值与所述SSB的测量值的差值满足差值门限。
- 根据权利要求3所述的方法,其特征在于,所述配置信息包括所述差值门限。
- 根据权利要求1或2所述的方法,其特征在于,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:所述SSB的测量值满足第一质量门限;所述CSI-RS的测量值满足第二质量门限。
- 根据权利要求5所述的方法,其特征在于,所述配置信息包括所述第一质量门限和所述第二质量门限。
- 根据权利要求3至6中任一项所述的方法,其特征在于,所述测量值为以下中的任一项:接收信号码功率RSCP、参考信号接收功率RSRP、参考信号接收质量RSRQ、信噪比SNR、信号与干扰噪声比SINR、参考信号强度指示RSSI。
- 一种用于通信的方法,其特征在于,包括:第一网络设备向终端设备发送配置信息,所述配置信息用于配置所述终端设备对第一小区发送的信道状态信息参考信号CSI-RS和同步信号块SSB进行测量;所述第一网络设备接收来自所述终端设备的第一报告,所述第一报告包括所述第一小区的标识信息,所述第一小区的所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件。
- 根据权利要求8所述的方法,其特征在于,所述第一报告还包括所述第一小区的所述CSI-RS的测量结果和所述SSB的测量结果。
- 根据权利要求8或9所述的方法,其特征在于,所述方法还包括:所述第一网络设备根据所述第一报告,确定所述第一小区对应的第二网络设备是伪基站。
- 根据权利要求8至10中任一项所述的方法,其特征在于,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:所述CSI-RS的测量值与所述SSB的测量 值的差值满足差值门限。
- 根据权利要求11所述的方法,其特征在于,所述配置信息包括所述差值门限。
- 根据权利要求8至10中任一项所述的方法,其特征在于,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:所述SSB的测量值满足第一质量门限;所述CSI-RS的测量值满足第二质量门限。
- 根据权利要求13所述的方法,其特征在于,所述配置信息包括所述第一质量门限和所述第二质量门限。
- 根据权利要求11至14中任一项所述的方法,其特征在于,所述测量值为以下中的任一项:接收信号码功率RSCP、参考信号接收功率RSRP、参考信号接收质量RSRQ、信噪比SNR、信号与干扰噪声比SINR、参考信号强度指示RSSI。
- 根据权利要求8至15中任一项所述的方法,其特征在于,所述方法还包括:所述第一网络设备接收来自第三网络设备的CSI-RS配置信息。
- 一种用于通信的装置,其特征在于,包括:收发单元,用于接收来自第一网络设备的配置信息;处理单元,用于根据所述配置信息,对第一小区发送的信道状态信息参考信号CSI-RS和同步信号块SSB进行测量;用于确定所述第一小区的所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件;所述收发单元还用于,向所述第一网络设备发送第一报告,所述第一报告包括所述第一小区的标识信息。
- 根据权利要求17所述的装置,其特征在于,所述第一报告还包括所述小区的所述CSI-RS的测量结果和/或所述SSB的测量结果。
- 根据权利要求17或18所述的装置,其特征在于,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:所述CSI-RS的测量值与所述SSB的测量值的差值满足差值门限。
- 根据权利要求19所述的装置,其特征在于,所述配置信息包括所述差值门限。
- 根据权利要求17或18所述的装置,其特征在于,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:所述SSB的测量值满足第一质量门限;所述CSI-RS的测量值满足第二质量门限。
- 根据权利要求21所述的装置,其特征在于,所述配置信息包括所述第一质量门限和所述第二质量门限。
- 一种用于通信的装置,其特征在于,包括:收发单元,用于向终端设备发送配置信息,所述配置信息用于配置所述终端设备对第一小区发送的信道状态信息参考信号CSI-RS和同步信号块SSB进行测量;所述收发单元还用于,接收来自所述终端设备的第一报告,所述第一报告包括所述第一小区的标识信息,所述第一小区的所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件。
- 根据权利要求23所述的装置,其特征在于,所述第一报告还包括所述第一小区 的所述CSI-RS的测量结果和所述SSB的测量结果。
- 根据权利要求23或24所述的装置,其特征在于,所述装置还包括:处理单元,用于根据所述第一报告,确定所述第一小区对应的第二网络设备是伪基站。
- 根据权利要求23至25中任一项所述的装置,其特征在于,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:所述CSI-RS的测量值与所述SSB的测量值的差值满足差值门限。
- 根据权利要求26所述的装置,其特征在于,所述配置信息包括所述差值门限。
- 根据权利要求23至25中任一项所述的装置,其特征在于,所述CSI-RS的测量结果和所述SSB的测量结果满足预设条件,包括:所述SSB的测量值满足第一质量门限;所述CSI-RS的测量值满足第二质量门限。
- 根据权利要求28所述的装置,其特征在于,所述配置信息包括所述第一质量门限和所述第二质量门限。
- 根据权利要求23至29中任一项所述的装置,其特征在于,所述收发单元还用于:接收来自第三网络设备的CSI-RS配置信息。
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| EP4054224B1 (en) * | 2019-10-29 | 2024-03-20 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Pseudo base station recognition method and apparatus, terminal device and network device |
| WO2021094221A1 (en) * | 2019-11-11 | 2021-05-20 | Telefonaktiebolaget Lm Ericsson (Publ) | False base station detection |
| WO2021206189A1 (ko) * | 2020-04-07 | 2021-10-14 | 엘지전자 주식회사 | 학습 기반의 신호 수신 방법 및 장치 |
| CN116684879A (zh) * | 2022-02-22 | 2023-09-01 | 华为技术有限公司 | 通信方法及装置 |
| CN115278796B (zh) * | 2022-07-19 | 2025-04-22 | Oppo广东移动通信有限公司 | 一种小区切换方法、小区切换装置、终端设备和存储介质 |
| US20260040166A1 (en) * | 2022-07-25 | 2026-02-05 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and apparatus of transmitting measurement reconfiguration message |
| US20250119817A1 (en) * | 2023-10-10 | 2025-04-10 | Dell Products, L.P. | Dynamic base station idle mode barring |
| US20250193676A1 (en) * | 2023-12-08 | 2025-06-12 | Dell Products, L.P. | Fake base station detection using temporal graph analysis and anomaly detection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220066A (zh) * | 2012-01-18 | 2013-07-24 | 华为技术有限公司 | 测量方法,csi-rs资源共享方法和装置 |
| CN107426731A (zh) * | 2016-05-23 | 2017-12-01 | 联发科技(新加坡)私人有限公司 | 伪基站小区的识别方法与装置 |
| US20180302889A1 (en) * | 2017-04-12 | 2018-10-18 | Samsung Electronics Co., Ltd. | Method and apparatus for beam recovery in next generation wireless systems |
| CN109150435A (zh) * | 2017-06-16 | 2019-01-04 | 展讯通信(上海)有限公司 | Csi-rs配置方法及装置、存储介质、基站、终端 |
| CN110035447A (zh) * | 2018-01-11 | 2019-07-19 | 维沃移动通信有限公司 | 一种测量配置方法及终端设备 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9838879B2 (en) * | 2014-12-19 | 2017-12-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Network node and method for detecting false base stations |
| CN105873067A (zh) * | 2016-05-31 | 2016-08-17 | 宇龙计算机通信科技(深圳)有限公司 | 伪基站的识别的方法及终端 |
| US11122454B2 (en) * | 2017-02-06 | 2021-09-14 | Lg Electronics Inc. | Measurement performing method and user equipment |
| KR20180122935A (ko) * | 2017-05-04 | 2018-11-14 | 삼성전자주식회사 | UE autonomous handover에서의 measurement report/event 운용 및 네트워크 시그널링 방법 |
| US20200396632A1 (en) * | 2017-09-28 | 2020-12-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Configuration of cell quality derivation parameters |
| CN111567094B (zh) * | 2017-10-06 | 2022-11-15 | 鸿颖创新有限公司 | 多波束环境中的随机存取信道资源选择的方法及装置 |
| CN110741670B (zh) * | 2017-11-15 | 2021-04-23 | Oppo广东移动通信有限公司 | 无线通信方法和设备 |
| CN111418226B (zh) * | 2017-11-28 | 2024-04-26 | 瑞典爱立信有限公司 | 用于无线通信的触发测量报告 |
| CN108124262A (zh) * | 2017-12-19 | 2018-06-05 | 努比亚技术有限公司 | 伪基站识别方法、终端及计算机可读存储介质 |
| CN110035450B (zh) * | 2018-01-12 | 2020-06-23 | 维沃移动通信有限公司 | 测量上报的方法、终端设备和网络设备 |
| KR20210045445A (ko) * | 2018-08-17 | 2021-04-26 | 노키아 테크놀로지스 오와이 | Ssb 및 csi-rs 기반 rrm 측정을 위한 측정 갭 관리 |
-
2019
- 2019-08-02 CN CN201910713891.8A patent/CN112399418B/zh active Active
-
2020
- 2020-07-17 WO PCT/CN2020/102593 patent/WO2021022991A1/zh not_active Ceased
- 2020-07-17 EP EP20850543.8A patent/EP4002903A4/en active Pending
-
2022
- 2022-02-01 US US17/590,072 patent/US20220159493A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220066A (zh) * | 2012-01-18 | 2013-07-24 | 华为技术有限公司 | 测量方法,csi-rs资源共享方法和装置 |
| CN107426731A (zh) * | 2016-05-23 | 2017-12-01 | 联发科技(新加坡)私人有限公司 | 伪基站小区的识别方法与装置 |
| US20180302889A1 (en) * | 2017-04-12 | 2018-10-18 | Samsung Electronics Co., Ltd. | Method and apparatus for beam recovery in next generation wireless systems |
| CN109150435A (zh) * | 2017-06-16 | 2019-01-04 | 展讯通信(上海)有限公司 | Csi-rs配置方法及装置、存储介质、基站、终端 |
| CN110035447A (zh) * | 2018-01-11 | 2019-07-19 | 维沃移动通信有限公司 | 一种测量配置方法及终端设备 |
Non-Patent Citations (2)
| Title |
|---|
| See also references of EP4002903A4 |
| TR38.801 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112399418A (zh) | 2021-02-23 |
| EP4002903A1 (en) | 2022-05-25 |
| US20220159493A1 (en) | 2022-05-19 |
| CN112399418B (zh) | 2022-10-18 |
| EP4002903A4 (en) | 2022-08-24 |
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