WO2022188437A1 - 信息处理方法、装置及存储介质 - Google Patents
信息处理方法、装置及存储介质 Download PDFInfo
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- WO2022188437A1 WO2022188437A1 PCT/CN2021/128234 CN2021128234W WO2022188437A1 WO 2022188437 A1 WO2022188437 A1 WO 2022188437A1 CN 2021128234 W CN2021128234 W CN 2021128234W WO 2022188437 A1 WO2022188437 A1 WO 2022188437A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
- H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
- H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
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Definitions
- the present application relates to the field of communications, and in particular, to an information processing method, device, and storage medium.
- TSN Time-Sensitive Networking
- IIoT IIoT
- the same propagation delay compensation (PDC, Propagation Delay Compensation) method is usually used for time synchronization.
- PDC propagation delay compensation
- this time synchronization method may have a problem of large system overhead.
- the present application provides an information processing method, an apparatus and a storage medium, which are used to solve the problem of high overhead for time synchronization in a communication system.
- the present application provides an information processing method, which is applied to an access network device, and the information processing method includes:
- time synchronization scene information where the time synchronization scene information is used to indicate a scene corresponding to a specific time synchronization requirement
- the target time synchronization strategy includes at least one of the following: a method of propagation delay compensation, an execution subject of propagation delay compensation, and a compensation period for performing propagation delay compensation.
- determine the target time synchronization strategy including:
- the method of propagation delay compensation is determined.
- the time synchronization scene information includes at least one of a target scene identifier of the time synchronization scene, an allowable range of target synchronization errors, and a target time synchronization requirement corresponding to the service.
- the time synchronization scene information includes a target scene identifier of the time synchronization scene, and the allowable range of the target synchronization error is determined according to the time synchronization scene information, including:
- the allowable range of the target synchronization error is determined to be the time synchronization error corresponding to the target scene identifier.
- the time synchronization scenario information includes the target time synchronization requirement corresponding to the service, and the allowable range of the target synchronization error is determined according to the time synchronization scenario information, including:
- the allowable range of the target synchronization error corresponding to the service is obtained.
- a propagation delay compensation method is determined according to the allowable range of the target synchronization error, including:
- the propagation delay compensation method is determined to be the compensation based on the round-trip delay RTT; otherwise, the propagation delay compensation method is determined to be the compensation based on the time calibration TA.
- determine the target time synchronization strategy including:
- the scene corresponding to the time synchronization scene information is time synchronization between terminals, it is determined that the execution subject of the target time synchronization policy is the access network device.
- determine the target time synchronization strategy including:
- the compensation period is determined to be the first duration; otherwise, the compensation period is determined to be the second duration;
- the first duration is shorter than the second duration.
- time synchronization scene information including:
- a first message from the terminal is received, where the first message carries time synchronization scene information.
- the sending moment of the first message includes at least one of the following:
- the terminal periodically sends the first message at the time of sending.
- the information processing method further includes:
- a second message for requesting time synchronization scene information is sent to the terminal.
- the second message is a radio resource control RRC message or a medium access control MAC layer signaling.
- time synchronization scene information including:
- a third message from the core network device is received, where the third message carries time synchronization scene information.
- the time synchronization scene information is obtained by the core network device from the application function module AF or the centralized network configuration CNC.
- the information processing method further includes:
- a fourth message is sent to the terminal, where the fourth message is used to instruct the terminal to perform time synchronization based on the target time synchronization policy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization.
- the fourth message is further used to indicate a compensation period for the terminal to perform time synchronization based on the target time synchronization policy.
- the present application provides an information processing method, which is applied to a terminal, and the information processing method includes:
- a first message is sent to the access network device, where the first message carries time synchronization scene information, where the time synchronization scene information is used to indicate a scene corresponding to a specific time synchronization requirement.
- the sending moment of the first message includes at least one of the following:
- the terminal periodically sends the first message at the time of sending.
- the second message is an RRC message or MAC layer signaling.
- the information processing method further includes:
- a fourth message sent by the access network device is received, where the fourth message is used to instruct the terminal to perform time synchronization based on the target time synchronization policy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization.
- the fourth message is further used to indicate a compensation period for the terminal to perform time synchronization based on the target time synchronization policy.
- the present application provides an information processing method, which is applied to core network equipment, and the information processing method includes:
- a third message is sent to the access network device, where the third message carries time synchronization scene information, and the time synchronization scene information is used to indicate a scene corresponding to a specific time synchronization requirement and to determine a target time synchronization strategy for time synchronization.
- the time synchronization scene information is obtained by the core network device from the application function module AF or the centralized network configuration CNC.
- the present application provides an information processing apparatus, which is applied to access network equipment, and the information processing apparatus includes a memory, a transceiver, and a processor:
- a transceiver for sending and receiving data under the control of the processor
- a processor that reads the computer program in memory and performs the following operations:
- time synchronization scene information where the time synchronization scene information is used to indicate a scene corresponding to a specific time synchronization requirement
- the target time synchronization strategy includes at least one of the following: a method of propagation delay compensation, an execution subject of propagation delay compensation, and a compensation period for performing propagation delay compensation.
- the processor also performs the following operations:
- the method of propagation delay compensation is determined.
- the time synchronization scene information includes at least one of a target scene identifier of the time synchronization scene, an allowable range of target synchronization errors, and a target time synchronization requirement corresponding to the service.
- the time synchronization scene information includes a target scene identifier of the time synchronization scene
- the processor further performs the following operations:
- the allowable range of the target synchronization error is the time synchronization error corresponding to the target scene identifier.
- the time synchronization scenario information includes target time synchronization requirements corresponding to the service, and the processor further performs the following operations:
- the allowable range of the target synchronization error corresponding to the service is obtained.
- the processor also performs the following operations:
- the propagation delay compensation method is determined to be the compensation based on the round-trip delay RTT; otherwise, the propagation delay compensation method is determined to be the compensation based on the time calibration TA.
- the processor also performs the following operations:
- the scene corresponding to the time synchronization scene information is time synchronization between terminals, it is determined that the execution subject of the target time synchronization policy is the access network device.
- the processor also performs the following operations:
- the compensation period is determined to be the first duration; otherwise, the compensation period is determined to be the second duration;
- the first duration is shorter than the second duration.
- the processor also performs the following operations:
- a first message from the terminal is received, where the first message carries time synchronization scene information.
- the sending moment of the first message includes at least one of the following:
- the terminal periodically sends the first message at the time of sending.
- the processor also performs the following operations:
- a second message for requesting time synchronization scene information is sent to the terminal.
- the second message is a radio resource control RRC message or a medium access control MAC layer signaling.
- the processor also performs the following operations:
- a third message from the core network device is received, where the third message carries time synchronization scene information.
- the time synchronization scene information is obtained by the core network device from the application function module AF or the centralized network configuration CNC.
- the processor also performs the following operations:
- a fourth message is sent to the terminal, where the fourth message is used to instruct the terminal to perform time synchronization based on the target time synchronization policy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization.
- the fourth message is further used to indicate a compensation period for the terminal to perform time synchronization based on the target time synchronization policy.
- the present application provides an information processing apparatus, which is applied to a terminal, and the information processing apparatus includes a memory, a transceiver, and a processor:
- a transceiver for sending and receiving data under the control of the processor
- a first message is sent to the access network device, where the first message carries time synchronization scene information, where the time synchronization scene information is used to indicate a scene corresponding to a specific time synchronization requirement.
- the sending moment of the first message includes at least one of the following:
- the terminal periodically sends the first message at the time of sending.
- the second message is an RRC message or MAC layer signaling.
- the processor also performs the following operations:
- a fourth message sent by the access network device is received, where the fourth message is used to instruct the terminal to perform time synchronization based on the target time synchronization policy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization.
- the fourth message is further used to indicate a compensation period for the terminal to perform time synchronization based on the target time synchronization policy.
- the present application provides an information processing apparatus, which is applied to core network equipment, and the information processing apparatus includes a memory, a transceiver, and a processor:
- a transceiver for sending and receiving data under the control of the processor
- a third message is sent to the access network device, where the third message carries time synchronization scene information, where the time synchronization scene information is used to indicate a scene corresponding to a specific time synchronization requirement.
- the time synchronization scene information is obtained by the core network device from the application function module AF or the centralized network configuration CNC.
- the present application provides an information processing apparatus, which is applied to access network equipment, and the information processing apparatus includes:
- an acquisition unit configured to acquire time synchronization scene information, where the time synchronization scene information is used to indicate a scene corresponding to a specific time synchronization requirement
- the determining unit is configured to determine the target time synchronization strategy according to the time synchronization scene information.
- the target time synchronization strategy includes at least one of the following: a method of propagation delay compensation, an execution subject of propagation delay compensation, and a compensation period for performing propagation delay compensation.
- determine the unit which is specifically used for:
- the method of propagation delay compensation is determined.
- the time synchronization scene information includes at least one of a target scene identifier of the time synchronization scene, an allowable range of target synchronization errors, and a target time synchronization requirement corresponding to the service.
- the time synchronization scene information includes a target scene identifier of the time synchronization scene, and the determining unit is specifically used for:
- the allowable range of the target synchronization error is the time synchronization error corresponding to the target scene identifier.
- the time synchronization scenario information includes the target time synchronization requirement corresponding to the service, and the determining unit is specifically used for:
- the allowable range of the target synchronization error corresponding to the service is obtained.
- determine the unit which is specifically used for:
- the propagation delay compensation method is determined to be the compensation based on the round-trip delay RTT; otherwise, the propagation delay compensation method is determined to be the compensation based on the time calibration TA.
- determine the unit which is specifically used for:
- the scene corresponding to the time synchronization scene information is time synchronization between terminals, it is determined that the execution subject of the target time synchronization policy is the access network device.
- determine the unit which is specifically used for:
- the compensation period is determined to be the first duration; otherwise, the compensation period is determined to be the second duration;
- the first duration is shorter than the second duration.
- a first message from the terminal is received, where the first message carries time synchronization scene information.
- the sending moment of the first message includes at least one of the following:
- the terminal periodically sends the first message at the time of sending.
- the information processing device further includes:
- the first sending unit is configured to send a second message for requesting time synchronization scene information to the terminal before receiving the first message sent by the terminal.
- the second message is a radio resource control RRC message or a medium access control MAC layer signaling.
- a third message from the core network device is received, where the third message carries time synchronization scene information.
- the time synchronization scene information is obtained by the core network device from the application function module AF or the centralized network configuration CNC.
- the information processing device further includes:
- the second sending unit is configured to send a fourth message to the terminal, where the fourth message is used to instruct the terminal to perform time synchronization based on the target time synchronization policy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization.
- the fourth message is further used to indicate a compensation period for the terminal to perform time synchronization based on the target time synchronization policy.
- the present application provides an information processing apparatus, which is applied to a terminal, and the information processing apparatus includes:
- the sending unit is configured to send a first message to the access network device, where the first message carries time synchronization scene information, and the time synchronization scene information is used to indicate a scene corresponding to a specific time synchronization requirement.
- the sending moment of the first message includes at least one of the following:
- the terminal periodically sends the first message at the time of sending.
- the second message is an RRC message or MAC layer signaling.
- the information processing device further includes:
- the receiving unit is configured to receive a fourth message sent by the access network device, where the fourth message is used to instruct the terminal to perform time synchronization based on the target time synchronization policy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization.
- the fourth message is further used to indicate a compensation period for the terminal to perform time synchronization based on the target time synchronization policy.
- the present application provides an information processing apparatus, which is applied to core network equipment, and the information processing apparatus includes:
- the sending unit is configured to send a third message to the access network device, where the third message carries time synchronization scene information, and the time synchronization scene information is used to indicate a scene corresponding to a specific time synchronization requirement.
- the time synchronization scene information is obtained by the core network device from the application function module AF or the centralized network configuration CNC.
- the present application provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the information described in the first aspect, the second aspect or the third aspect Approach.
- the present application provides a computer program product containing instructions, when the instructions are run on a computer, the computer executes the information processing method described in the first, second or third aspects.
- the present application provides a communication system, including the access network device as described in any of the above, the terminal as described in any of the above, and the core network device as described in any of the above.
- the present application provides an information processing method, device and storage medium, in which an access network device can determine a corresponding target time synchronization strategy according to the acquired time synchronization scene information, so that the target time synchronization strategy is adapted to the synchronization requirements of the time synchronization scene, Compared with using the same PDC method for time synchronization, the system overhead caused by time synchronization can be effectively reduced.
- FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application
- FIG. 2 is a schematic diagram of another application scenario provided by an embodiment of the present application.
- FIG. 3 is a schematic flowchart of an information processing method according to an embodiment of the present application.
- FIG. 4 is a schematic flowchart of an information processing method provided by another embodiment of the present application.
- FIG. 5 is a schematic flowchart of an information processing method provided by another embodiment of the present application.
- FIG. 6 is a schematic flowchart of an information processing method provided by another embodiment of the present application.
- FIG. 7 is a schematic flowchart of an information processing method provided by another embodiment of the present application.
- FIG. 8 is a schematic structural diagram of an information processing apparatus according to an embodiment of the present application.
- FIG. 9 is a schematic structural diagram of an information processing apparatus provided by another embodiment of the present application.
- FIG. 10 is a schematic structural diagram of an information processing apparatus provided by another embodiment of the present application.
- FIG. 11 is a schematic structural diagram of an information processing apparatus provided by another embodiment of the present application.
- FIG. 12 is a schematic structural diagram of an information processing apparatus provided by another embodiment of the present application.
- FIG. 13 is a schematic structural diagram of an information processing apparatus provided by another embodiment of the present application.
- the term "and/or” describes the relationship between related objects, and means that there can be three relationships, for example, A and/or B, which can mean that A exists alone, A and B exist simultaneously, and B exists alone. a situation.
- the character "/” generally indicates that the associated objects are an "or" relationship.
- the term “plurality” refers to two or more than two, and other quantifiers are similar.
- the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (New Radio, NR) system, etc.
- GSM global system of mobile communication
- CDMA code division multiple access
- WCDMA wideband Code Division Multiple Access
- general packet Wireless service general packet Radio service
- GPRS general packet Wireless service
- LTE long term evolution
- LTE frequency division duplex frequency division duplex
- time division duplex time division duplex
- TDD Time division duplex
- the terminal involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem.
- the name of the terminal may be different.
- the terminal may be called user equipment (User Equipment, UE).
- a wireless terminal may communicate with one or more core networks (Core Network, CN) via a Radio Access Network (RAN), and the wireless terminal may be a mobile terminal, such as a mobile phone (or "cellular" phone) and computers with mobile terminals, which may be portable, pocket-sized, hand-held, computer built-in or vehicle mounted mobile devices, for example, which exchange language and/or data with the wireless access network.
- Core Network Core Network
- RAN Radio Access Network
- a wireless terminal may also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, A remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), and a user device (user device) are not limited in the embodiments of the present application.
- the network device involved in the embodiments of the present application may be a base station, and the base station may include a plurality of cells providing services for the terminal.
- the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal through one or more sectors on an air interface, or other names.
- the network equipment can be used to exchange received air frames with Internet Protocol (IP) packets, and act as a router between the wireless terminal and the rest of the access network, which may include the Internet Protocol (IP) communication network.
- IP Internet Protocol
- the network devices may also coordinate attribute management for the air interface.
- the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA). ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a long term evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in 5G network architecture (next generation system), or Home evolved Node B (HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiments of the present application.
- a network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.
- One or more antennas can be used between the network device and the terminal for multiple input multiple output (Multi Input Multi Output, MIMO) transmission, and the MIMO transmission can be single user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO ( Multiple User MIMO, MU-MIMO).
- MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or diversity transmission, precoding transmission, or beamforming transmission.
- FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application.
- this embodiment provides a communication system.
- the communication system includes a network device 110 and a terminal 120 .
- the network device 110 includes a core network device 111 and a terminal 120 .
- the access network device 112 and the terminal 120 have their own independent clock modules.
- the time error of the crystal oscillator in the clock module, the propagation delay in the wireless signal propagation process, etc. lead to different access network devices 112
- There are time synchronization errors between different terminals 120 and between the access network device 112 and the terminal 120 .
- the core network device 111 and the access network device 112 in this application scenario may be independent and different physical devices, or the functions of the core network device 111 and the logical functions of the access network device 112 may be integrated in the same physical device.
- the device may also be a physical device that integrates some functions of the core network device 111 and some functions of the access network device 112 .
- the terminal 120 may be fixed or movable.
- FIG. 1 is just a schematic diagram, the communication system may also include other network devices, such as wireless repeater devices and wireless backhaul devices, which are not shown in FIG. 1 .
- communication systems in addition to supporting traditional services (such as call services), communication systems will also support more services with high time synchronization requirements, such as positioning services, driverless services, and virtual reality services.
- time synchronization needs of communication systems have become more diverse.
- FIG. 2 is a schematic diagram of another application scenario provided by the embodiment of the present application.
- This application scenario is a scenario in which a 5G system accesses TSN.
- both the TSN network and the 5G system have high time synchronization requirements.
- the TSN system establishes a communication connection with the TSN switching node (Bridge) or data terminal (End Station) through the 5G system.
- the first node is that the 5G system serves as the logical switching node (Logical Bridge) of the TSN.
- the 5G system communicates with the TSN system and the first node respectively by means of bridging.
- the time synchronization requirements of the communication system are different, and the allowable range of the time synchronization error evaluated by the 3GPP system is also quite different.
- the time of high video data flow is that the time synchronization error is less than 10 microseconds
- the time synchronization requirement of the time synchronization between terminals is that the time synchronization error is less than 1 microsecond
- the time synchronization error of the time synchronization between terminals is within the allowable range of ⁇ 145 nanoseconds to ⁇ 275 nanoseconds.
- Smart grid The allowable range of the time synchronization error is ⁇ 795 nanoseconds to ⁇ 845 nanoseconds.
- PDC Propagation Delay Compensation
- embodiments of the present application provide an information processing method, apparatus, device, and medium.
- the target time synchronization strategy is determined in a targeted manner, which improves the flexibility and pertinence of the time synchronization strategy, can effectively reduce the system overhead of time synchronization, and can meet the time requirements of different scenarios. synchronization requirements.
- FIG. 3 is a schematic flowchart of an information processing method according to an embodiment of the present application.
- the execution subject of the information processing method is an access network device.
- the method includes:
- the time synchronization scene information is used to indicate the scene corresponding to the specific time synchronization requirement, and the scene corresponding to the specific time synchronization requirement means that the scene has its own time synchronization requirement.
- the time synchronization scene information is used to indicate the current progress time. Synchronized scenarios, the time synchronization requirements of different scenarios are the same or different. For the convenience of description, the scenarios corresponding to specific time synchronization requirements will be referred to as time synchronization scenarios in the following.
- the time synchronization scenario information may include a time synchronization scenario (which can be understood as an application scenario or a business scenario), and/or a time synchronization requirement of the time synchronization scenario.
- the access network device may acquire pre-stored time synchronization scene information, for example, according to the time synchronization scene where the access network device is located, pre-set time synchronization scene information in the access network device; or, the access network device Dynamically acquire the time synchronization scene information, for example, determine the time synchronization scene information according to the received service information, or the communication distance with the terminal, etc.
- the target time synchronization strategy refers to a method for time synchronization.
- the access network device may determine whether the time synchronization scene has a higher time synchronization requirement according to the time synchronization scene information. Determine whether to perform time synchronization and determine a target time synchronization strategy for time synchronization according to whether the time synchronization scenario has a high time synchronization requirement.
- time synchronization requirement of the time synchronization scenario is low, it may be determined not to perform time synchronization, or a time synchronization strategy with low time synchronization accuracy but low system overhead may be determined as the target time synchronization strategy to reduce system overhead . If the time synchronization requirement of the time synchronization scenario is high, the time synchronization strategy with high system overhead but high time synchronization precision can be determined as the target time synchronization strategy to improve the time synchronization effect.
- the access network device determines the target time synchronization strategy in a targeted manner according to the time synchronization scenario information, so as to improve the flexibility, rationality, and applicability of the time synchronization strategy in the time synchronization scenario, which is beneficial to reduce System overhead and improve time synchronization effect.
- the target time synchronization strategy includes at least one of the following: a propagation delay compensation method, an execution subject of propagation delay compensation, and a compensation period for performing propagation delay compensation. Therefore, it is possible to determine at least one of the propagation delay compensation method, the execution subject of the propagation delay compensation, and the compensation period for the propagation delay compensation for the time synchronization scenario, which is beneficial to improve the target time synchronization from one or more aspects. The rationale for the strategy.
- the propagation delay is the time for the wireless signal to propagate from the sending end (such as an access network device) to the receiving end (such as a terminal), and the propagation delay is one of the factors that cause the time synchronization error between the access network device and the terminal .
- the method of propagation delay compensation refers to the method of compensating the time for the wireless signal to propagate from the sender to the receiver.
- the execution subject of propagation delay compensation is used to indicate the subject of the method of performing propagation delay compensation. For example, if propagation delay compensation is performed on the access network device side, the execution subject is the access network device. When the propagation delay compensation is performed, the execution subject is the terminal.
- the compensation period for performing propagation delay compensation is used to indicate that some propagation delay compensation is performed every other compensation period, that is, time synchronization is performed every other compensation period.
- the mode of propagation delay compensation, the execution subject of propagation delay compensation, and the compensation period for propagation delay compensation are all influencing factors of time synchronization accuracy and system overhead of time synchronization.
- Different propagation delay compensation methods have different time synchronization accuracy and system overhead.
- Different devices have different time synchronization accuracy and system overhead for propagation delay compensation.
- the compensation period for propagation delay compensation is different, and time synchronization is different.
- the precision is also different, and the system overhead is also different.
- the access network device determines the target time synchronization strategy according to the time synchronization scenario information, it can determine the corresponding delay compensation strategy, the execution subject of the propagation delay compensation, and the execution according to whether the time synchronization scenario has high time synchronization requirements. At least one of compensation periods for propagation delay compensation.
- the target time synchronization strategy is obtained from at least one of the delay compensation strategy, the execution subject of the propagation delay compensation, and the compensation period for performing the propagation delay compensation.
- the time synchronization scene information includes at least one of a target scene identifier of the time synchronization scene, an allowable range of synchronization errors, and a target time synchronization requirement corresponding to the service.
- a possible implementation of determining the target time synchronization strategy according to the time synchronization scene information includes: determining the target time synchronization strategy according to at least one of the target scene identifier, the allowable range of the target synchronization error, and the target time synchronization requirement corresponding to the service .
- the three items of target scene identification, target synchronization error allowable range, and target time synchronization requirements corresponding to the business are related to the time synchronization scene and can reflect the time synchronization requirements of the time synchronization scene, which can be used to further improve the target time synchronization strategy. Applicability and accuracy in time synchronization scenarios.
- the time synchronization scene information includes the target scene identifier of the time synchronization scene
- the scene identifiers of multiple scenes can be pre-configured, the scene identifier of each scene is unique, and the mapping relationship between the time synchronization requirement of the scene and the scene identifier is pre-configured.
- the target time synchronization strategy can be determined according to the time synchronization requirement of the time synchronization scenario.
- the time synchronization scenario information when the time synchronization scenario information includes the target synchronization error allowable range and/or the target time synchronization requirement corresponding to the service, the time synchronization scenario may be determined according to the target synchronization error allowable range and/or the target time synchronization requirement corresponding to the service.
- Time synchronization requirements, and further, a target time synchronization strategy can be determined according to the time synchronization requirements of the time synchronization scenario.
- FIG. 4 is a schematic flowchart of an information processing method provided by another embodiment of the present application.
- the execution subject of the information processing method in this embodiment is an access network device. As shown in Figure 4, the method includes:
- S402. Determine the allowable range of the target synchronization error according to the time synchronization scene information.
- the allowable range of the target synchronization error reflects the time synchronization requirement of the time synchronization scenario.
- the allowable range of the target synchronization error refers to the time error range to be satisfied for time synchronization in the time synchronization scenario.
- the access network device determines the target synchronization error allowable range corresponding to the time synchronization scene information.
- the access network device may search for the synchronization error allowable range corresponding to the target scene identifier in the mapping relationship between the scene identifier and the synchronization error allowable range, and determine the target The allowable range of synchronization error is the allowable range of synchronization error corresponding to the target scene identifier.
- scenario identifiers of multiple time synchronization scenarios may be preconfigured, and the scenario identifiers of each time synchronization scenario are unique, and the scenario identifiers are, for example, a scenario number, a scenario name, and the like.
- the scenario identifier of the scenario of time synchronization between terminals is 1, and the scenario identifier of the smart grid scenario is 2.
- the mapping relationship between the scene identifier and the allowable range of synchronization error can also be configured according to the time synchronization requirement of the time synchronization scene.
- the time synchronization requirement in the scenario of time synchronization between terminals is that the synchronization error is less than 1 microsecond.
- the allowable range of the synchronization error corresponding to the scene identifier 1 is less than or equal to 1 microsecond.
- the target scene identifier can be obtained from the time synchronization information.
- the synchronization error operating range corresponding to the target scene identifier is searched.
- the found synchronization error allowable range corresponding to the target scene identifier is determined as the target synchronization error allowable range.
- the access network device may directly obtain the target synchronization error allowable range from the time synchronization scene information.
- the access network device may obtain the target synchronization error allowable range corresponding to the service based on the target time synchronization requirement corresponding to the service.
- the target time synchronization requirement corresponding to the service is, for example, the service's requirement for delay reliability, and the service's requirement for delay reliability can be reflected in the allowable error range of the delay reliability. Therefore, the delay reliability can be
- the allowable error range is determined as the allowable range of the target synchronization error corresponding to the business. Businesses such as positioning business, unmanned driving business, navigation business, etc.
- the access network device may determine whether the time synchronization scenario has a higher time synchronization requirement according to the allowable range of the target synchronization error.
- a corresponding propagation delay compensation method is determined according to whether the time synchronization scenario has a high time synchronization requirement.
- a value in the allowable range of the target synchronization error is compared with one or more thresholds, and a corresponding propagation delay compensation mode is determined according to the comparison result. For example, when the value in the allowable range of the target synchronization error is less than or equal to a certain threshold (for example, the maximum value, the minimum value or the middle value in the allowable range of the target synchronization error is less than or equal to a certain threshold), it indicates the time synchronization of the time synchronization scene If the demand is high, the propagation delay compensation method with higher time synchronization accuracy can be determined as the propagation delay compensation method in the target time synchronization strategy.
- a certain threshold for example, the maximum value, the minimum value or the middle value in the allowable range of the target synchronization error is less than or equal to a certain threshold
- the propagation delay strategy with low time synchronization precision can be determined as the propagation delay compensation method in the target time synchronization strategy.
- the access network device determines, according to the time synchronization scenario information, a target synchronization error allowable range that reflects the time synchronization requirements of the time synchronization scenario, and determines the propagation delay compensation in the target time synchronization strategy according to the target synchronization error allowable range.
- the propagation delay compensation method includes a round trip delay (Round Trip Time, RTT)-based compensation strategy and a time alignment (Time Alignment, TA)-based step size strategy.
- a possible implementation manner of S403 includes: if the value in the allowable range of the target synchronization error is less than or equal to the first threshold, then determining that the propagation delay compensation in the target time synchronization strategy is RTT-based compensation, otherwise , and the way of determining the propagation delay compensation in the target time synchronization strategy is TA-based compensation.
- the first threshold is a preset constant value.
- the value in the allowable range of target synchronization errors is less than or equal to the first threshold, which means that the maximum value in the allowable range of target synchronization errors is less than or equal to the first threshold, or it means that the minimum value in the allowable range of target synchronization is less than or equal to the first threshold. or equal to the first threshold, or, it means that the middle value in the allowable range of target synchronization is less than or equal to the first threshold.
- RTT-based compensation Compared with TA-based compensation, RTT-based compensation has higher time synchronization precision and higher system overhead.
- the access network device compares the value in the allowable range of the target synchronization error with the first threshold. If the value in the allowable range of target synchronization error is less than or equal to the first threshold, it means that the time synchronization requirement of the time synchronization scenario is high, and the propagation delay compensation method in the target time synchronization strategy is determined to be based on RTT with high time synchronization accuracy. compensation to ensure time synchronization accuracy. If the value in the allowable range of the target synchronization error is greater than the first threshold, it means that the time synchronization requirement of the time synchronization scenario is not high, and the propagation delay compensation method in the target time synchronization strategy is determined to be one with low time synchronization accuracy but low overhead.
- the propagation delay compensation method in the target time synchronization strategy is determined in the RTT-based compensation and the TA-based compensation in a targeted manner, which solves the problem of using the same delay compensation in different scenarios.
- the system overhead caused by the strategy is relatively large and the time synchronization effect is not good.
- a possible implementation manner of determining the target time synchronization strategy based on the target time synchronization strategy including the execution subject of the propagation delay compensation according to the time synchronization scene information is: if the scene corresponding to the time synchronization scene information is a terminal If the time synchronization between the two is performed, it is determined that the execution subject of the target time synchronization policy is the access network device.
- the scenario of time synchronization between terminals includes wireless communication between different terminals.
- the transmission of wireless communication needs to pass through the network device multiple times.
- the first terminal is located in the first cell
- the second terminal is located in the second cell.
- the first terminal communicates with the second terminal
- the first terminal sends a wireless signal to the network device to which the first cell belongs, and the first terminal belongs to the network device.
- the network device then forwards the received wireless signal to the network device to which the second cell belongs, and the network device to which the second cell belongs sends the wireless signal to the second terminal. Therefore, the scenario of time synchronization between terminals has high requirements on the efficiency of time synchronization.
- the time synchronization on the access network device side is more efficient. Therefore, when the access network device determines that the scene corresponding to the time synchronization scene information is the time synchronization between terminals, for example, when the target scene identifier in the time synchronization scene information is the scene identifier of the time synchronization between terminals, it determines the execution of the target time synchronization policy.
- the main body is the access network equipment.
- the access network device determines that the scenario corresponding to the time synchronization scenario information is the time synchronization between the terminal and the base station, such as the smart grid scenario, considering that the time synchronization between the terminal and the base station only passes through the network device once, the time synchronization The efficiency requirements of synchronization are not high, therefore, the execution subject of the target time synchronization strategy is determined as the terminal, so as to reduce the system overhead of the access network equipment.
- the method of determining the execution subject of the target time synchronization strategy may be combined with the method of determining the propagation delay compensation in the target time synchronization strategy. While determining the execution subject of the target time synchronization strategy, the propagation delay compensation method in the target time synchronization strategy is determined.
- the access network device determines that the execution subject of the target time synchronization policy is the access network device , and determine that the propagation delay compensation in the target time synchronization strategy is RTT-based compensation.
- the access network device determines that the execution subject of the target time synchronization policy is the terminal, and determines.
- the propagation delay compensation method in the target time synchronization strategy is TA-based compensation.
- the target time synchronization strategy includes a compensation period
- another possible implementation manner of determining the target time synchronization strategy according to the time synchronization scene information is: according to the time synchronization scene information, determine the time synchronization based on the target time synchronization strategy. Synchronized compensation period.
- the access network device determines, according to the time synchronization scenario information, that the time synchronization requirement of the time synchronization scenario is high, a shorter compensation period may be determined to improve the time synchronization accuracy. If, according to the information of the time synchronization scenario, it is determined that the time synchronization requirement of the time synchronization scenario is not high, a longer compensation period can be determined to reasonably reduce the system overhead caused by the time synchronization.
- the first duration and the second duration are preset, and the first duration is smaller than the second duration.
- the access network device may determine whether the target synchronization error operating range is less than or equal to the second threshold. If so, the compensation period is determined to be the first duration; otherwise, the compensation period is determined to be the second duration. Wherein, the target synchronization error operating range satisfies the second condition, indicating that the time synchronization requirement of the time synchronization scenario is relatively high.
- the second threshold is a preset constant value.
- the second threshold may be a different value from the aforementioned first threshold, or may be the same value.
- the value in the allowable range of target synchronization errors is less than or equal to the second threshold, which means that the maximum value in the allowable range of target synchronization errors is less than or equal to the second threshold, or it means that the minimum value in the allowable range of target synchronization is less than or equal to the second threshold. or equal to the second threshold, or, it means that the middle value in the allowable range of target synchronization is less than or equal to the second threshold.
- the value in the allowable range of the target synchronization error is compared with the second threshold. If the value in the allowable range of the target synchronization error is less than or equal to the second threshold, it indicates that the time synchronization requirement of the time synchronization scenario is high. To improve the time synchronization accuracy, the compensation period is determined to be the first duration. If the value in the allowable range of the target synchronization error is greater than the second threshold, it indicates that the time synchronization requirement of the time synchronization scenario is not high. In order to reduce the system overhead caused by the time synchronization, the compensation period is determined to be the second duration.
- a third duration, a fourth duration, etc. may be preset, and in addition to the second threshold, a third threshold, a fourth threshold, and the like may be preset. According to multiple thresholds, the time synchronization requirements of the time synchronization scenario are divided in more detail, and the compensation period is determined in multiple durations according to the division results.
- the method of determining the execution subject of the target time synchronization strategy, the method of determining the propagation delay compensation in the target time synchronization strategy, and the method of determining the compensation period in the target time synchronization strategy may be combined with each other.
- the access network device determines the propagation delay compensation method and/or the step period in the target time synchronization policy.
- the access network device determines that the scenario corresponding to the time synchronization scenario information is inter-terminal time synchronization, the value in the allowable range of the target synchronization error is less than or equal to the first threshold, and the value in the allowable range of the target synchronization error is less than or equal to the second
- determine that the execution subject of the target time synchronization policy is the access network device, determine that the propagation delay compensation method in the target time synchronization policy is RTT-based compensation, and determine that the compensation period in the target time synchronization policy is the first duration.
- the time synchronization scene information obtained by the access network device may come from the terminal or the core network device. Therefore, the access network device can dynamically obtain the time synchronization scene information, which is beneficial to improve the accuracy of the time synchronization scene information.
- FIG. 5 is a schematic flowchart of an information processing method provided by another embodiment of the present application. As shown in FIG. 5 , the method of this embodiment may include:
- the terminal sends a first message to an access network device, where the first message carries time synchronization scene information.
- the terminal may actively send the first message to the access network device to report the time synchronization scene information to the access network device.
- the terminal may acquire time synchronization scene information from the application layer.
- the application layer is associated with the business, and can store or dynamically obtain business information.
- the application layer obtains the time synchronization scene corresponding to the service, and determines the scene identifier of the time synchronization scene as the target scene identifier in the time synchronization scene information; for another example, the application layer obtains the time synchronization requirement corresponding to the service.
- the terminal may receive time synchronization scene information sent by the core network device.
- the core network device may send time synchronization scene information to the terminal through a non-access stratum (Non-Access Stratum, NAS) message.
- the core network device may, for example, obtain time synchronization scene information according to the service it accesses.
- the sending moment of the first message includes at least one of the following:
- the terminal When the terminal enters the connected state to access the cell; when the terminal has a service requiring uplink time synchronization; when the terminal switches to access a new cell; the terminal periodically sends the first message at the time of sending.
- the terminal when the terminal enters the connected access cell, it sends a first message to the access network device, which triggers the access network device to determine the target time synchronization strategy according to the time synchronization scenario information in the first message, which is convenient for the terminal or the access network.
- the device performs time synchronization according to the target time synchronization strategy, which provides a favorable communication environment for the communication between the terminal and the access network device.
- the terminal when the terminal enters the connected state to access the cell, for example, the terminal establishes or re-establishes a radio resource control (Radio Resource Control, RRC) connection with the access network device to which the cell belongs.
- RRC Radio Resource Control
- the service requiring uplink time synchronization refers to: in this service, it is required that uplink signals of different terminals at different distances can reach the access network equipment synchronously. Therefore, when the terminal has a service requiring uplink time synchronization, it needs to perform time synchronization and send the first message to the access network device.
- the terminal when the terminal switches to access the new cell, there may be a large time synchronization error between the terminal and the access network equipment to which the new cell belongs.
- the terminal In order to ensure normal communication between the terminal and the new cell, the terminal can The access network device sends the first message.
- the access network device determines a target time synchronization policy according to the time synchronization scenario information.
- the method of this embodiment further includes:
- the access network device sends a fourth message to the terminal, where the fourth message is used to instruct the terminal to perform time synchronization based on the target time synchronization policy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization.
- the access network device may send to the terminal a fourth message for indicating that the terminal does not need to perform time synchronization if the access network device determines, according to the time synchronization information, that the execution subject of the target time synchronization policy is the access network device, the access network device may send a fourth message to the terminal indicating that the terminal does not need to perform time synchronization.
- the access network device may send to the terminal a fourth message for instructing the terminal to perform time synchronization based on the target time synchronization policy. , to trigger the terminal to perform time synchronization according to the target time synchronization policy.
- the fourth message is further used to instruct the terminal to perform delay compensation according to the propagation delay compensation method in the target time synchronization strategy.
- the fourth message is further used to indicate a compensation period for the terminal to perform time synchronization based on the target time synchronization strategy.
- the terminal may send time synchronization scene information to the access network device according to the actual situation, so as to perform time synchronization in time.
- the access network device determines the target time synchronization strategy that meets the time synchronization requirements of the time synchronization scenario, which improves the flexibility, rationality, and applicability of the time synchronization strategy in the time synchronization scenario, which is conducive to reducing System overhead and improve time synchronization effect.
- FIG. 6 is a schematic flowchart of an information processing method provided by an embodiment of the present application. As shown in FIG. 5 , the method of this embodiment may include:
- the access network device sends a second message to the terminal, where the second message is used to request time synchronization scene information.
- the access network device may send a second message to the terminal according to the actual situation, so as to request to obtain the time synchronization scene information.
- the sending moment of the second message includes at least one of the following:
- the access network device When the access network device detects that the terminal enters a connected state access cell; when the access network device detects that the terminal switches to access a new cell; the access network device periodically sends the second message at the time of sending.
- the access network device when the access network device detects that the terminal enters the connected state access cell, for example, when the access network device establishes an RRC connection or reconnection with the terminal.
- the access network device detects that the terminal switches to a new cell, for example, when the access network device receives a cell handover request sent by the terminal's source access network device, or when the terminal successfully accesses the cell where the access network device is located through cell handover .
- the second message is an RRC message or a medium access control (Medium Access Control, MAC) layer message.
- RRC Radio Resource Control
- MAC Medium Access Control
- the terminal sends a first message to the access network device, where the first message carries time synchronization scene information.
- the terminal may acquire time synchronization scene information, and send the first message carrying the time synchronization scene information to the access network device.
- the access network device determines a target time synchronization policy according to the time synchronization scenario information.
- the method of this embodiment further includes:
- the access network device sends a fourth message to the terminal, where the fourth message is used to instruct the terminal to perform time synchronization based on the target time synchronization policy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization.
- the fourth message is further used to indicate a compensation period for the terminal to perform time synchronization based on the target time synchronization policy.
- the access network device requests time synchronization scenario information from the terminal according to the actual situation, and after obtaining the time synchronization scenario information, determines a target time synchronization strategy that meets the time synchronization requirements of the time synchronization scenario according to the time synchronization scenario information, and improves the The flexibility, rationality, and applicability of time synchronization strategies in time synchronization scenarios are improved, which is beneficial to reduce system overhead and improve time synchronization effects.
- FIG. 7 is a schematic flowchart of an information processing method provided by another embodiment of the present application. As shown in FIG. 6 , the method of this embodiment may include:
- the core network device sends a third message to the access network device, where the third message carries time synchronization scene information.
- the core network device may periodically send the third message to the access network device; or, when the access network device requests time synchronization scenario information from the core network device, the core network device sends the third message to the access network device message; or, the core network device sends a third message to the access network device when accessing the service network (for example, the TSN network).
- the service network for example, the TSN network
- the core network device may obtain time synchronization scene information from an application function module (Application Function, AF) or from a centralized network configuration (Centralized Network Configuration, CNC). .
- application Function Application Function
- CNC Centralized Network Configuration
- time synchronization scene information is configured in AF or CNC.
- the core network sends a third message to the access network device through a user plane function (User Plane Function, UPF) to the N3 interface of the access network device.
- UPF User Plane Function
- the access network device determines a target time synchronization policy according to the time synchronization scenario information.
- the method of this embodiment further includes:
- the access network device sends a fourth message to the terminal, where the fourth message is used to instruct the terminal to perform time synchronization based on the target time synchronization policy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization.
- the fourth message is further used to indicate a compensation period for the terminal to perform time synchronization based on the target time synchronization policy.
- the core network device sends time synchronization scenario information to the access network device, and the access network device determines a target time synchronization strategy that meets the time synchronization requirements of the time synchronization scenario according to the time synchronization scenario information, thereby improving the time synchronization strategy
- the flexibility, rationality, and applicability in time synchronization scenarios are conducive to reducing system overhead and improving time synchronization effects.
- an embodiment of the present application provides an information processing apparatus.
- the information processing apparatus of this embodiment may be an access network device, and the information processing apparatus includes: a transceiver 801, a processor 802 and memory 803.
- the transceiver 801 is used to receive and transmit data under the control of the processor 802 .
- the bus architecture may include any number of interconnected buses and bridges, specifically, one or more processors represented by processor 802 and various circuits of memory represented by memory 803 are linked together.
- the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
- the bus interface provides the interface.
- Transceiver 801 may be multiple elements, ie, including transmitters and receivers, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like.
- the processor 802 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 802 in performing operations.
- the processor 802 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor may also adopt a multi-core architecture.
- the processor 802 invokes the computer program stored in the memory 803 to execute any one of the methods related to the access network device provided in the embodiments of the present application according to the obtained executable instructions.
- the processor 802 and the memory 803 may also be arranged physically separately.
- the processor 802 implements the following operations when executing the computer program stored in the memory 803: acquiring time synchronization scene information, where the time synchronization scene information is used to indicate a scene corresponding to a specific time synchronization requirement; determining the target time according to the time synchronization scene information Synchronization strategy.
- the target time synchronization strategy includes at least one of the following: a method of propagation delay compensation, an execution subject of propagation delay compensation, and a compensation period for performing propagation delay compensation.
- the processor 802 further performs the following operations: determining the allowable range of the target synchronization error according to the time synchronization scene information; and determining the propagation delay compensation mode according to the allowable range of the target synchronization error.
- the time synchronization scene information includes at least one of a target scene identifier of the time synchronization scene, an allowable range of target synchronization errors, and a target time synchronization requirement corresponding to the service.
- the processor 802 when the time synchronization scene information includes the target scene identifier of the time synchronization scene, the processor 802 further performs the following operations: according to the mapping relationship between the scene identifier and the synchronization error allowable range, determine that the target synchronization error allowable range is corresponding to the target scene identifier. The allowable range of synchronization error.
- the processor 802 when the time synchronization scenario information includes the target time synchronization requirement corresponding to the service of the time synchronization scenario, the processor 802 further performs the following operation: based on the target time synchronization requirement corresponding to the service, obtain the target synchronization error allowable range corresponding to the service.
- the processor 802 further performs the following operations: if the value in the allowable range of the target synchronization error is less than or equal to the first threshold, determine that the propagation delay compensation mode is compensation based on the round-trip delay RTT; otherwise, determine the propagation delay compensation.
- the way of delay compensation is compensation based on time calibration TA.
- the target time synchronization strategy includes the execution body of the propagation delay compensation, and the processor 802 also performs the following operations: if the scene corresponding to the time synchronization scene information is the time synchronization between terminals, then determine the execution body of the target time synchronization strategy as the receiver. access equipment.
- the target time synchronization strategy includes a compensation period
- the processor 802 also performs the following operations: if the value in the allowable range of the target synchronization error corresponding to the time synchronization scene information is less than or equal to the second threshold, then determine that the compensation period is the first duration. , otherwise, the compensation period is determined to be the second duration; wherein, the first duration is less than the second duration.
- the processor 802 further performs the following operation: receiving a first message from the terminal, where the first message carries time synchronization scene information.
- the sending time of the first message includes at least one of the following: when the terminal enters the connected state to access the cell; when the terminal has a service requiring uplink time synchronization; when the terminal switches to access a new cell; the terminal periodically sends the first message. message, at the moment of sending.
- the processor 802 further performs the following operation: before receiving the first message sent by the terminal, send a second message for requesting time synchronization scene information to the terminal.
- the second message is a radio resource control RRC message or a medium access control MAC layer signaling.
- the processor 802 further performs the following operation: receiving a third message from the core network device, where the third message carries time synchronization scene information.
- the time synchronization scene information is obtained by the core network device from the application function module AF or the centralized network configuration CNC.
- the processor 802 further performs the following operations: sending a fourth message to the terminal, where the fourth message is used to instruct the terminal to perform time synchronization based on the target time synchronization policy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization.
- the fourth message is further used to indicate a compensation period for the terminal to perform time synchronization based on the target time synchronization policy.
- an embodiment of the present application provides an information processing apparatus.
- the information processing apparatus in this embodiment may be a terminal, and the information processing apparatus may include a transceiver 901 , a processor 902 , and a memory 903 .
- the transceiver 901 is used to receive and transmit data under the control of the processor 902 .
- the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 902 and various circuits of memory represented by memory 903 are linked together.
- the bus architecture can also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein.
- the bus interface provides the interface.
- Transceiver 901 may be a number of elements, including transmitters and receivers, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like Transmission medium.
- the information processing apparatus may also include a user interface 904.
- the user interface 904 may also be an interface that can be externally connected to the required equipment.
- the connected equipment includes but is not limited to a keypad, a display, a speaker, and a microphone. , joystick, etc.
- the processor 902 is responsible for managing the bus architecture and general processing, and the memory 903 may store data used by the processor 902 in performing operations.
- the processor 902 can be a central processing unit (central processing unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable A logic device (Complex Programmable Logic Device, CPLD), the processor 902 may also adopt a multi-core architecture.
- CPU central processing unit
- ASIC Application Specific Integrated Circuit
- FPGA Field-Programmable Gate Array
- CPLD Complex Programmable Logic Device
- the processor 902 invokes the computer program stored in the memory 903 to execute any one of the methods on the terminal provided by the embodiments of the present application according to the obtained executable instructions.
- the processor 902 and the memory 903 may also be arranged physically separately.
- the processor 902 implements the following operations when executing the computer program stored in the memory 903: sending a first message to the access network device, where the first message carries time synchronization scene information, and the time synchronization scene information is used to indicate a specific time synchronization requirement corresponding scene.
- the sending time of the first message includes at least one of the following: when the terminal enters the connected state to access the cell; when the terminal has a service requiring uplink time synchronization; when the terminal switches to access a new cell; the terminal periodically sends the first message. message, at the time of sending; when the terminal receives the second message sent by the access network device for requesting time synchronization scene information.
- the second message is an RRC message or MAC layer signaling.
- the processor 902 further performs the following operations: receiving a fourth message sent by the access network device, where the fourth message is used to instruct the terminal to perform time synchronization based on the target time synchronization policy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization. time synchronization.
- the fourth message is further used to indicate a compensation period for the terminal to perform time synchronization based on the target time synchronization policy.
- an embodiment of the present application provides an information processing apparatus.
- the information processing apparatus of this embodiment may be an access network device, and the information processing apparatus includes: a transceiver 1001 and a processor 1002 and memory 1003.
- the transceiver 1001 is used to receive and transmit data under the control of the processor 1002 .
- the bus architecture may include any number of interconnected buses and bridges, specifically, one or more processors represented by the processor 1002 and various circuits of the memory represented by the memory 1003 are linked together.
- the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein.
- the bus interface provides the interface.
- Transceiver 1001 may be multiple elements, ie, including a transmitter and a receiver, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like.
- the processor 1002 is responsible for managing the bus architecture and general processing, and the memory 1003 may store data used by the processor 1002 in performing operations.
- the processor 1002 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor may also adopt a multi-core architecture.
- the processor 1002 invokes the computer program stored in the memory 1003 to execute any one of the methods related to the core network device provided in the embodiments of the present application according to the obtained executable instructions.
- the processor 1002 and the memory 1003 may also be arranged physically separately.
- the processor 1002 implements the following operations when executing the computer program stored in the memory 1003: sending a third message to the access network device, where the third message carries time synchronization scene information, and the time synchronization scene information is used to indicate a specific time synchronization requirement corresponding scene.
- the time synchronization scene information is obtained by the core network device from the application function module AF or the centralized network configuration CNC.
- an embodiment of the present application further provides an information processing apparatus.
- the information processing apparatus of this embodiment may be an access network device, and the information processing apparatus includes: an obtaining unit 1101 and a determining unit 1101 . unit 1102.
- an acquisition unit 1101 configured to acquire time synchronization scene information, where the time synchronization scene information is used to indicate a scene corresponding to a specific time synchronization requirement;
- the determining unit 1102 is configured to determine a target time synchronization strategy according to the time synchronization scene information.
- the target time synchronization strategy includes at least one of the following: a method of propagation delay compensation, an execution subject of propagation delay compensation, and a compensation period for performing propagation delay compensation.
- the target time synchronization strategy includes a method of propagation delay compensation
- the determining unit 1102 is specifically configured to: determine the allowable range of the target synchronization error according to the time synchronization scene information; determine the allowable range of the propagation delay compensation according to the allowable range of the target synchronization error. Way.
- the time synchronization scene information includes at least one of a target scene identifier of the time synchronization scene, an allowable range of target synchronization errors, and a target time synchronization requirement corresponding to the service.
- the time synchronization scene information includes a target scene identifier of the time synchronization scene
- the determining unit 1102 is specifically configured to: according to the mapping relationship between the scene identifier and the synchronization error allowable range, determine that the target synchronization error allowable range is corresponding to the target scene identifier. Synchronization error tolerance.
- the time synchronization scenario information includes the target time synchronization requirement corresponding to the service
- the determining unit 1102 is specifically configured to: obtain the target synchronization error allowable range corresponding to the service based on the target time synchronization requirement corresponding to the service.
- the determining unit 1102 is specifically configured to: if the value in the allowable range of the target synchronization error is less than or equal to the first threshold, determine that the propagation delay compensation mode is compensation based on the round-trip delay RTT; otherwise, determine the propagation delay compensation.
- the way of delay compensation is compensation based on time calibration TA.
- the target time synchronization strategy includes an execution subject of propagation delay compensation
- the determining unit 1102 is specifically configured to: if the scene corresponding to the time synchronization scenario information is inter-terminal time synchronization, determine the execution subject of the target time synchronization policy as the connection. access equipment.
- the target time synchronization strategy includes a compensation period
- the determining unit 1102 is specifically configured to: if the value in the target synchronization error corresponding to the time synchronization scene information is less than or equal to the second threshold, then determine the compensation period to be the first duration, otherwise , and the compensation period is determined to be the second duration; wherein, the first duration is less than the second duration.
- the obtaining unit 1101 is specifically configured to: receive a first message from the terminal, where the first message carries time synchronization scene information.
- the sending time of the first message includes at least one of the following: when the terminal enters the connected state to access the cell; when the terminal has a service requiring uplink time synchronization; when the terminal switches to access a new cell; the terminal periodically sends the first message. message, at the moment of sending.
- the information processing device further includes:
- the first sending unit 1103 is configured to send a second message for requesting time synchronization scene information to the terminal before receiving the first message sent by the terminal.
- the second message is a radio resource control RRC message or a medium access control MAC layer signaling.
- the obtaining unit 1101 is specifically configured to: receive a third message from the core network device, where the third message carries time synchronization scene information.
- the time synchronization scene information is obtained by the core network device from the application function module AF or the centralized network configuration CNC.
- the information processing device further includes:
- the second sending unit 1104 is configured to send a fourth message to the terminal, where the fourth message is used to instruct the terminal to perform time synchronization based on the target time synchronization policy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization.
- the fourth message is further used to indicate a compensation period for the terminal to perform time synchronization based on the target time synchronization policy.
- this embodiment of the present application further provides an information processing apparatus.
- the information processing apparatus in this embodiment may be a terminal, and the information processing apparatus includes: a sending unit 1201 .
- the sending unit 1201 is configured to send a first message to an access network device, where the first message carries time synchronization scene information, and the time synchronization scene information is used to indicate a scene corresponding to a specific time synchronization requirement.
- the sending time of the first message includes at least one of the following: when the terminal enters the connected state to access the cell; when the terminal has a service requiring uplink time synchronization; when the terminal switches to access a new cell; the terminal periodically sends the first message. message, at the time of sending; when the terminal receives the second message sent by the access network device for requesting time synchronization scene information.
- the second message is an RRC message or MAC layer signaling.
- the information processing device further includes:
- the receiving unit 1202 is configured to receive a fourth message sent by the access network device, where the fourth message is used to instruct the terminal to perform time synchronization based on the target time synchronization policy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization.
- the fourth message is further used to indicate a compensation period for the terminal to perform time synchronization based on the target time synchronization policy.
- this embodiment of the present application further provides an information processing apparatus.
- the information processing apparatus in this embodiment may be a core network device, and the information processing apparatus includes: a sending unit 1301 .
- the sending unit 1301 is configured to send a third message to the access network device, where the third message carries time synchronization scene information, and the time synchronization scene information is used to indicate a scene corresponding to a specific time synchronization requirement.
- the information processing device further includes:
- the obtaining unit 1302 is configured to obtain time synchronization scene information from the application function module AF or the centralized network configuration CNC.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
- the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
- the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium.
- the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application.
- the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .
- the embodiments of the present application provide a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to make the processor execute any one of the descriptions related to the terminal provided by the embodiments of the present application.
- the processor can implement all the method steps implemented by the terminal in the above method embodiments, and can achieve the same technical effects, and the same parts and beneficial effects in this embodiment as those in the method embodiments will not be described in detail here.
- the embodiments of the present application provide a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute any one of the network devices provided by the embodiments of the present application. described method.
- the processor can implement all the method steps implemented by the network device in the above method embodiments, and can achieve the same technical effects, and the same parts and beneficial effects in this embodiment as those in the method embodiments will not be described in detail here.
- the processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including but not limited to magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg, CD, DVD, BD, HVD, etc.), and semiconductor memory (eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)), etc.
- magnetic storage eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
- optical storage eg, CD, DVD, BD, HVD, etc.
- semiconductor memory eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)
- the embodiments of the present application provide a computer program product containing instructions, when the instructions are run on a computer, the computer can execute all the method steps implemented by the terminal in the above method embodiments, and can achieve the same technical effect , the same parts and beneficial effects in this embodiment as those in the method embodiment will not be described in detail here.
- an embodiment of the present application provides a computer program product containing instructions, when the instructions are run on a computer, the computer is made to execute all the method steps implemented by the network device in the above method embodiments, and can achieve the same technology Therefore, the same parts and beneficial effects in this embodiment as those in the method embodiment will not be described in detail here.
- the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.
- processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the processor-readable memory result in the manufacture of means including the instructions product, the instruction means implements the functions specified in the flow or flow of the flowchart and/or the block or blocks of the block diagram.
- processor-executable instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process that Execution of the instructions provides steps for implementing the functions specified in the flowchart or blocks and/or the block or blocks of the block diagrams.
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Abstract
Description
Claims (40)
- 一种信息处理方法,应用于接入网设备,其特征在于,所述信息处理方法包括:获取时间同步场景信息,所述时间同步场景信息用于指示与特定时间同步需求对应的场景;根据所述时间同步场景信息,确定目标时间同步策略。
- 根据权利要求1所述的信息处理方法,其特征在于,所述目标时间同步策略包括如下至少一项:传播时延补偿的方式、传播时延补偿的执行主体、进行传播时延补偿的补偿周期。
- 根据权利要求2所述的信息处理方法,其特征在于,所述根据所述时间同步场景信息,确定目标时间同步策略,包括:根据所述时间同步场景信息,确定目标同步误差允许范围;根据所述目标同步误差允许范围,确定所述传播时延补偿的方式。
- 根据权利要求1所述的信息处理方法,其特征在于,所述时间同步场景信息包括时间同步场景的目标场景标识、目标同步误差允许范围、业务对应的目标时间同步需求中的至少一项。
- 根据权利要求3所述的信息处理方法,其特征在于,所述时间同步场景信息包括时间同步场景的目标场景标识,所述根据所述时间同步场景信息,确定目标同步误差允许范围,包括:根据场景标识与同步误差允许范围的映射关系,确定所述目标同步误差允许范围为与所述目标场景标识对应的同步误差允许范围。
- 根据权利要求3所述的信息处理方法,其特征在于,所述时间同步场景信息包括业务对应的目标时间同步需求,所述根据所述时间同步场景信息,确定目标同步误差允许范围,包括:基于业务对应的目标时间同步需求,获取业务对应的目标同步误差允许范围。
- 根据权利要求3所述的信息处理方法,其特征在于,所述根据所述目标同步误差允许范围,确定所述传播时延补偿的方式,包括:若所述目标同步误差允许范围中的数值小于或等于第一阈值,则确定所述传播时延补偿的方式为基于往返时延RTT的补偿,否则,确定所述传播时延补偿的方式为基于时间校准TA的补偿。
- 根据权利要求2所述的信息处理方法,其特征在于,所述根据所述时间同步场景信息,确定目标时间同步策略,包括:若所述时间同步场景信息对应的场景为终端间时间同步,则确定所述目标时间同步策略的执行主体为所述接入网设备。
- 根据权利要求2所述的信息处理方法,其特征在于,所述根据所述时间同步场景信息,确定目标时间同步策略,包括:若所述时间同步场景信息对应的目标同步误差允许范围中的数值小于或等于第二阈值,则确定所述补偿周期为第一时长,否则,确定所述补偿周期为第二时长;其中,所述第一时长小于所述第二时长。
- 根据权利要求1至9中任一项所述的信息处理方法,其特征在于,所述获取时间同步场景信息,包括:接收来自终端的第一消息,所述第一消息携带所述时间同步场景信息。
- 根据权利要求10所述的信息处理方法,其特征在于,所述第一消息的发出时刻包含以下至少一种:所述终端进入连接态接入小区时;所述终端有上行时间同步需求的业务时;所述终端发生切换接入新小区时;所述终端周期性发送所述第一消息,在发送时刻时。
- 根据权利要求1所述的信息处理方法,其特征在于,所述信息处理方法还包括:在接收所述终端发送的第一消息之前,向所述终端发送用于请求所述时间同步场景信息的第二消息。
- 根据权利要求12所述的信息处理方法,其特征在于,所述第二消息为无线资源控制RRC消息或媒体接入控制MAC层信令。
- 根据权利要求1至9中任一项所述的信息处理方法,其特征在于,所述获取时间同步场景信息,包括:接收来自核心网设备的第三消息,所述第三消息携带所述时间同步场景信息。
- 根据权利要求14所述的信息处理方法,其特征在于,所述时间同步场景信息是由所述核心网设备从应用功能模块AF或集中网络配置CNC获取的。
- 根据权利要求1至9中任一项所述的信息处理方法,其特征在于,所述信息处理方法还包括:向终端发送第四消息,所述第四消息用于指示所述终端基于所述目标时间同步策略进行时间同步,或者,所述第四消息用于指示所述终端无需进行时间同步。
- 根据权利要求16所述的信息处理方法,其特征在于,所述第四消息还用于指示所述终端基于所述目标时间同步策略进行时间同步的补偿周期。
- 一种信息处理方法,应用于终端,其特征在于,所述信息处理方法包括:向接入网设备发送第一消息,所述第一消息携带时间同步场景信息,所述时间同步场景信息用于指示与特定时间同步需求对应的场景。
- 根据权利要求18所述的信息处理方法,其特征在于,所述第一消息的发出时刻包含以下至少一种:所述终端进入连接态接入小区时;所述终端有上行时间同步需求的业务时;所述终端发生切换接入新小区时;所述终端周期性发送所述第一消息,在发送时刻时。
- 根据权利要求18或19所述的信息处理方法,其特征在于,所述信息处理方法还包括:接收所述接入网设备发送的第四消息,所述第四消息用于指示所述终端基于目标时间同步策略进行时间同步,或者,所述第四消息用于指示所述终端无需进行时间同 步。
- 根据权利要求20所述的信息处理方法,其特征在于,所述第四消息还用于指示所述终端基于所述目标时间同步策略进行时间同步的补偿周期。
- 一种信息处理方法,应用于核心网设备,其特征在于,所述信息处理方法包括:向接入网设备发送第三消息,所述第三消息携带时间同步场景信息,所述时间同步场景信息用于指示与特定时间同步需求对应的场景、并用于确定进行时间同步的目标时间同步策略。
- 一种信息处理装置,应用于接入网设备,其特征在于,所述信息处理装置包括存储器、收发机和处理器:所述存储器,用于存储计算机程序;所述收发机,用于在所述处理器的控制下收发数据;所述处理器,用于读取所述存储器中的计算机程序并执行以下操作:获取时间同步场景信息,所述时间同步场景信息用于指示与特定时间同步需求对应的场景;根据所述时间同步场景信息,确定目标时间同步策略。
- 根据权利要求23所述的信息处理装置,其特征在于,所述目标时间同步策略包括如下至少一项:传播时延补偿的方式、传播时延补偿的执行主体、进行传播时延补偿的补偿周期。
- 根据权利要求24所述的信息处理装置,其特征在于,所述处理器还执行以下操作:根据所述时间同步场景信息,确定目标同步误差允许范围;根据所述目标同步误差允许范围,确定所述传播时延补偿的方式。
- 根据权利要求23所述的信息处理装置,其特征在于,所述时间同步场景信息包括时间同步场景的目标场景标识、目标同步误差允许范围、业务对应的目标时间同步需求中的至少一项。
- 根据权利要求25所述的信息处理装置,其特征在于,所述时间同步场景信息包括时间同步场景的目标场景标识,所述处理器还执行以下操作:根据场景标识与同步误差允许范围的映射关系,确定所述目标同步误差允许范围为与所述目标场景标识对应的同步误差允许范围。
- 根据权利要求25所述的信息处理装置,其特征在于,所述时间同步场景信息包括业务对应的目标时间同步需求,所述处理器还执行以下操作:基于业务对应的目标时间同步需求,获取业务对应的目标同步误差允许范围。
- 根据权利要求25所述的信息处理装置,其特征在于,所述处理器还执行以下操作:若所述目标同步误差允许范围中的数值小于或等于第一阈值,则确定所述传播时延补偿的方式为基于往返时延RTT的补偿,否则,确定所述传播时延补偿的方式为基于时间校准TA的补偿。
- 根据权利要求24所述的信息处理装置,其特征在于,所述处理器还执行以下 操作:若所述时间同步场景信息对应的场景为终端间时间同步,则确定所述目标时间同步策略的执行主体为所述接入网设备。
- 根据权利要求24所述的信息处理装置,其特征在于,所述处理器还执行以下操作:若所述时间同步场景信息对应的目标同步误差允许范围中的数值小于或等于第二阈值,则确定所述补偿周期为第一时长,否则,确定所述补偿周期为第二时长;其中,所述第一时长小于所述第二时长。
- 一种信息处理装置,应用于终端,其特征在于,所述信息处理装置包括存储器、收发机和处理器:所述存储器,用于存储计算机程序;所述收发机,用于在所述处理器的控制下收发数据;所述处理器,用于读取所述存储器中的计算机程序并执行以下操作:向接入网设备发送第一消息,所述第一消息携带时间同步场景信息,所述时间同步场景信息用于指示与特定时间同步需求对应的场景。
- 一种信息处理装置,应用于核心网,其特征在于,所述信息处理装置包括存储器、收发机和处理器:所述存储器,用于存储计算机程序;所述收发机,用于在所述处理器的控制下收发数据;所述处理器,用于读取所述存储器中的计算机程序并执行以下操作:向接入网设备发送第三消息,所述第三消息携带时间同步场景信息,所述时间同步场景信息用于指示与特定时间同步需求对应的场景。
- 一种信息处理装置,应用于接入网设备,其特征在于,所述信息处理装置包括:获取单元,用于获取时间同步场景信息,所述时间同步场景信息用于指示与特定时间同步需求对应的场景;确定单元,用于根据所述时间同步场景信息,确定目标时间同步策略。
- 根据权利要求34所述的信息处理装置,其特征在于,所述目标时间同步策略包括如下至少一项:传播时延补偿的方式、传播时延补偿的执行主体、进行传播时延补偿的补偿周期。
- 根据权利要求35所述的信息处理装置,其特征在于,所述确定单元具体用于:根据所述时间同步场景信息,确定目标同步误差允许范围;根据所述目标同步误差允许范围,确定所述传播时延补偿的方式。
- 一种信息处理装置,应用于终端,其特征在于,所述信息处理装置包括:发送单元,用于向接入网设备发送第一消息,所述第一消息携带时间同步场景信息,所述时间同步场景信息用于指示与特定时间同步需求对应的场景。
- 根据权利要求37所述的信息处理装置,其特征在于,第一消息的发出时刻包含以下至少一种:终端进入连接态接入小区时;终端有上行时间同步需求的业务时;终端发生切换接入新小区时;终端周期性发送第一消息,在发送时刻时。
- 一种信息处理装置,应用于核心网设备,其特征在于,所述信息处理装置包括:发送单元,用于向接入网设备发送第三消息,所述第三消息携带时间同步场景信息,所述时间同步场景信息用于指示与特定时间同步需求对应的场景。
- 一种处理器可读存储介质,其特征在于,所述处理器可读存储介质存储有计算机程序,所述计算机程序用于使所述处理器执行权利要求1-22中任一项所述的信息处理方法。
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US20200267672A1 (en) * | 2019-02-14 | 2020-08-20 | Institute For Information Industry | Base station for mobile communication system |
WO2020167013A1 (en) * | 2019-02-14 | 2020-08-20 | Samsung Electronics Co., Ltd. | Time synchronization method, ue, base station, device and computer readable storage medium |
WO2021204361A1 (en) * | 2020-04-07 | 2021-10-14 | Nokia Technologies Oy | Apparatus, method and computer program |
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US20200267672A1 (en) * | 2019-02-14 | 2020-08-20 | Institute For Information Industry | Base station for mobile communication system |
WO2020167013A1 (en) * | 2019-02-14 | 2020-08-20 | Samsung Electronics Co., Ltd. | Time synchronization method, ue, base station, device and computer readable storage medium |
WO2021204361A1 (en) * | 2020-04-07 | 2021-10-14 | Nokia Technologies Oy | Apparatus, method and computer program |
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HUAWEI: "RAN3 impacts of the time synchronization enhancement", 3GPP DRAFT; R3-210479, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG3, no. E-meeting; 20210125 - 20210205, 15 January 2021 (2021-01-15), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051968923 * |
LENOVO, MOTOROLA MOBILITY: "Considerations on time synchronization enhancement", 3GPP DRAFT; R2-2009865, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. electronic; 20201102 - 20201113, 23 October 2020 (2020-10-23), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051942667 * |
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US20240236891A9 (en) | 2024-07-11 |
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US20240137883A1 (en) | 2024-04-25 |
EP4307777A4 (en) | 2024-09-18 |
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