WO2019134607A1 - 信息处理方法和装置、通信设备及计算机可读存储介质 - Google Patents

信息处理方法和装置、通信设备及计算机可读存储介质 Download PDF

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Publication number
WO2019134607A1
WO2019134607A1 PCT/CN2018/125402 CN2018125402W WO2019134607A1 WO 2019134607 A1 WO2019134607 A1 WO 2019134607A1 CN 2018125402 W CN2018125402 W CN 2018125402W WO 2019134607 A1 WO2019134607 A1 WO 2019134607A1
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Prior art keywords
time synchronization
synchronization message
channel
sending
timestamp
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PCT/CN2018/125402
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English (en)
French (fr)
Inventor
韩柳燕
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中国移动通信有限公司研究院
中国移动通信集团有限公司
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Publication of WO2019134607A1 publication Critical patent/WO2019134607A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to an information processing method and apparatus, a communication device, and a computer readable storage medium.
  • the network transmission time uses the PTP (Precision Time Protocol) protocol to meet high-precision time requirements.
  • PTP time synchronization is performed by a delay computer system.
  • the master and slave devices calculate the path delay and time offset between the master and slave devices by recording the time stamp generated when the packets are transmitted between the devices, and realize the time between the master and slave devices. Synchronize.
  • the timestamp information that is sent to the sending end is the timestamp information of the sending time of the PTP packet
  • the timestamp information recorded by the receiving end is the timestamp information of the received PTP packet.
  • the sender sends a PTP packet to the PTP packet, and then the PTP packet passes through the MAC layer of the sending interface (Media Access Control, media access). Control) or PHY (physical) layer processing until it is actually sent out.
  • the timestamp information is sent into the PTP message, until the PTP message is sent out from the interface, there is a delay ⁇ T1. That is to say, there is an error in the transmission timestamp information of the PTP message.
  • the transmission timestamp information corresponds to a certain PTP message, the transmission timestamp information must be recorded and inserted when a single PTP message can be identified.
  • the delay ⁇ T1 may be an unfixed value.
  • the device On the receiving end, when the device detects a PTP packet, it records the timestamp of the receiving time for subsequent PTP protocol processing. When the PTP packet arrives at the receiving end, the device detects the packet and records the timestamp of the receiving time. There is a delay ⁇ T2. That is to say, there is an error in the PTP receiving time stamp information. Moreover, since the received timestamp information corresponds to a certain message, the received timestamp information must be recorded when a single message can be identified, and it is possible to identify that a single message belongs to a higher level of processing within the device, that is, a delay ⁇ . T2 will be bigger.
  • the location where the timestamp is processed by the sender and the receiver is in the stage of being able to identify a single packet, and the timestamp corresponds to the time of sending and receiving a certain PTP packet, which is in compliance with the PTP protocol.
  • the problem is that the difference between the timestamp information sent and the time when the PTP is sent from the interface is delayed by ⁇ T1, and the difference between the received timestamp information and the actual receiving time of the PTP is ⁇ T2, which introduces a time error and affects the device. Time accuracy. When the time precision requirement of the service is further improved, the accuracy of the scheme cannot meet the requirements.
  • TDM Time Division Multiplexing
  • packets need to be encapsulated into a specific frame format to form a logical channel.
  • different logical channels can be further combined into one physical channel. .
  • the error problem of the existing PTP technology processing timestamp will be more prominent, because the message is encapsulated into a specific frame format and then sent, and the delay ⁇ T1 will be larger.
  • the message is parsed and recognized from the frame format, and ⁇ T2 is also larger. It can be seen that the time synchronization accuracy of the related art is low.
  • the present disclosure provides an information processing method and apparatus, a communication device, and a computer readable storage medium for improving time synchronization accuracy.
  • an embodiment of the present disclosure provides an information processing method, which is applied to a sending end, and includes:
  • the target frame format identifier is a frame format identifier of the channel formed by multiplexing the multiple subchannels when the channel includes multiple subchannels.
  • the time synchronization message When the time synchronization message includes a time synchronization message, the time synchronization message is carried in any time slot position of the channel;
  • time synchronization message When the time synchronization message includes multiple time synchronization messages, multiple time synchronization messages are respectively carried in different time slot positions of the channel.
  • time synchronization message When the time synchronization message includes multiple time synchronization messages, multiple time synchronization messages are carried in different time slot positions of one of the multiple subchannels; or multiple time synchronization reports are used.
  • the text is carried in any slot position of different subchannels.
  • an embodiment of the present disclosure provides an information processing method, which is applied to a receiving end, and includes:
  • the received timestamp information when the target frame format identifier is identified is recorded;
  • the receiving timestamp information is used as a receiving timestamp of a time synchronization message carried in the channel;
  • the time synchronization message includes a sending timestamp determined according to the sending timestamp information generated by the sending end when the target frame format identifier is identified.
  • the method further includes:
  • Time synchronization processing is performed according to the reception time stamp and the transmission time stamp.
  • an embodiment of the present disclosure provides an information processing apparatus, including: a processor and a transceiver;
  • the processor is configured to generate a sending timestamp information when the target frame format identifier of the channel where the time synchronization message is located is generated, and use the sending timestamp information as a sending timestamp of the time synchronization message;
  • the transceiver is configured to send a message to the receiving end, where the time synchronization message is carried in the channel, and the time synchronization message includes the sending timestamp.
  • the target frame format identifier is a frame format identifier of the channel formed by multiplexing the multiple subchannels when the channel includes multiple subchannels.
  • the processor is further configured to: when the time synchronization message includes a time synchronization message, the time synchronization message is carried in any time slot position of the channel;
  • the processor is further configured to carry multiple time synchronization messages respectively at different time slot positions of the channel.
  • the processor is further configured to carry multiple time synchronization messages in different time slot positions of one of the multiple subchannels, when the time synchronization message includes multiple time synchronization messages. Or the processor is further configured to carry multiple time synchronization messages in any slot position of different subchannels.
  • an embodiment of the present disclosure provides an information processing apparatus, including: a processor and a transceiver;
  • the transceiver is configured to receive a packet sent by the sending end, and identify the packet;
  • the processor is configured to: when the target frame format identifier of the packet is identified, record the received timestamp information when the target frame format identifier is identified; and use the received timestamp information as a time synchronization message. Receive timestamp;
  • the time synchronization message is carried in the channel, and the time synchronization message includes a transmission timestamp determined according to the sending timestamp information generated by the sending end when the target frame format identifier is identified.
  • the processor is further configured to: acquire a sending timestamp in the time synchronization message; perform time synchronization processing according to the receiving timestamp and the sending timestamp.
  • an embodiment of the present disclosure provides a communication device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor; the computer program is processed by a processor.
  • a communication device including: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor; the computer program is processed by a processor.
  • the steps of the method as described in the first aspect are implemented when executed; or the steps of the method as described in the second aspect are implemented when the computer program is executed by a processor.
  • an embodiment of the present disclosure provides a computer readable storage medium for storing a computer program, the computer program being executed by a processor to implement the steps in the method as described in the first aspect.
  • an embodiment of the present disclosure provides a computer readable storage medium for storing a computer program, the computer program being executed by a processor to implement the steps in the method as described in the second aspect.
  • the target frame format identifier of the channel in which the time synchronization message is located is used as the identifier for detecting and transmitting the time synchronization time stamp, instead of identifying a certain message as in the related art.
  • the timestamp or the receiving timestamp can be determined, so that the indeterminate delay of sub-channel processing and packet processing is not calculated in the timestamp information when the internal processing of the device is performed, and the timestamp information is guaranteed to the utmost extent. Accuracy improves time synchronization accuracy.
  • FIG. 1 is a flowchart of an information processing method according to an embodiment of the present disclosure
  • 2(a) to 2(b) are schematic diagrams showing the bearer of a time synchronization message according to an embodiment of the present disclosure
  • 3(a) to 3(d) are diagrams showing the bearer of a time synchronization message according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of an information processing apparatus according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of an information processing apparatus according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a communication device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a communication device according to an embodiment of the present disclosure.
  • the information processing method of the embodiment of the present disclosure is applied to a transmitting end, and includes the following steps 101 to 103.
  • Step 101 Generate a transmission timestamp information when the target frame format identifier of the channel where the time synchronization message is located is identified.
  • Step 102 The sending timestamp information is used as a sending timestamp of the time synchronization message.
  • the specific composition and specific form of the target frame format identifier are not limited.
  • it may be management information for indicating a channel, may be information for channel identification, and may be used for channel multiplexing. Information used, etc.
  • the sender device identifies the identifier of the time synchronization timestamp as the target frame format of the channel in which the time synchronization message is located, and processes the timestamp information after identifying the target frame format identifier. Specifically, when the sending end device sends and processes the target frame format identifier, the sending timestamp information is generated, and the timestamp information is put into the time synchronization message carried by the channel, as the sending time stamp of the time synchronization message. .
  • the target frame format identifies a frame format identifier of the channel formed by multiplexing the multiple sub-channels.
  • Step 103 Send a message to the receiving end, where the time synchronization message is carried in the channel, and the time synchronization message includes the sending timestamp.
  • the message includes a frame header and a data packet.
  • the sender processes the target frame format identifier and generates a transmission timestamp information.
  • the time synchronization message carried by the channel may be multiple time synchronization messages, and multiple time synchronization messages are placed in different time slot positions of the channel.
  • the time synchronization message carried by the channel may be multiple time synchronization messages, and multiple time synchronization messages are placed in different sub-channels or different time slot positions of the same sub-channel.
  • time synchronization messages there may be one or more time synchronization messages carried in the channel. If a time synchronization message is carried, then as shown in Figures 2(a) and 2(b), the time synchronization message is carried at any slot position of the channel. It can be seen from FIG. 2(a) and FIG. 2(b) that the time synchronization message carried by the channel can be placed in different time slot positions of the channel.
  • Time synchronization messages can be carried at different time slot locations of the channel.
  • the channel when there is only one time synchronization message, one time can be used.
  • the synchronization message is carried in different sub-channels; when there are multiple time synchronization messages, multiple time synchronization messages may be carried in different time slots of one of the plurality of sub-channels, or more Time synchronization messages are carried in any slot position of different subchannels.
  • the target frame format identifier of the channel in which the time synchronization message is located is used as the identifier for detecting and transmitting the time synchronization time stamp, instead of identifying a certain message as in the related art.
  • the timestamp or the receiving timestamp can be determined, so that the indeterminate delay of sub-channel processing and packet processing is not calculated in the timestamp information when the internal processing of the device is performed, and the timestamp information is guaranteed to the utmost extent. Accuracy improves time synchronization accuracy.
  • embodiments of the present disclosure can be applied to an evolution scheme of a higher precision network.
  • the information processing method of the embodiment of the present disclosure is applied to the receiving end, and includes:
  • Step 401 Receive a packet sent by the sending end, and identify the packet.
  • Step 402 When the target frame format identifier of the channel is identified, record the received timestamp information when the target frame format identifier is identified.
  • Step 403 The receiving timestamp information is used as a receiving timestamp of a time synchronization message carried in the channel.
  • the time synchronization message includes a sending timestamp determined according to the sending timestamp information generated by the sending end when the target frame format identifier is identified.
  • the receiving end device when the receiving end device detects the target frame format identifier, the timestamp information of the target frame format identifier is detected as the receiving timestamp, and the receiving timestamp is used as the time synchronization message carried by the channel. Receive time information.
  • the receiving end when there are multiple time synchronization packets in the same channel, when the receiving end detects the target frame format identifier, the timestamp information of the target frame format identifier is detected as the receiving. The timestamp is used as the receiving time information of the multiple time synchronization messages carried by the channel.
  • the target frame format identifier of the channel in which the time synchronization message is located is used as the identifier for detecting and transmitting the time synchronization time stamp, instead of identifying a certain message as in the related art.
  • the timestamp or the receiving timestamp can be determined, so that the indeterminate delay of sub-channel processing and packet processing is not calculated in the timestamp information when the internal processing of the device is performed, and the timestamp information is guaranteed to the utmost extent. Accuracy improves time synchronization accuracy.
  • the receiving end may also acquire a sending timestamp in the time synchronization message, and perform time synchronization processing according to the receiving timestamp and the sending timestamp.
  • the process of performing time synchronization processing according to the reception time stamp and the transmission time stamp is the same as that of the related art.
  • the information processing apparatus of the embodiment of the present disclosure includes: a processor 501 and a transceiver 502;
  • the processor 501 is configured to: when the target frame format identifier of the channel where the time synchronization message is located is detected, generate the sending timestamp information; and use the sending timestamp information as the sending timestamp of the time synchronization message;
  • the transceiver 502 is configured to send a packet to the receiving end, where the time synchronization packet is carried in the channel, and the time synchronization packet includes the sending timestamp.
  • the target frame format identifies a frame format identifier of the channel formed by multiplexing the multiple sub-channels.
  • the processor 501 is further configured to: when the time synchronization message includes a time synchronization message, the time synchronization message is carried in any time slot position of the channel; when the time synchronization report The processor 501 is further configured to carry multiple time synchronization messages in different time slot positions of the channel, respectively, when the message includes multiple time synchronization messages.
  • the processor 501 is further configured to: carry multiple time synchronization messages in different time slots of one of the multiple subchannels, when the time synchronization message includes multiple time synchronization messages.
  • the processor 501 is further configured to carry multiple time synchronization messages in any slot positions of different subchannels.
  • the target frame format identifier of the channel in which the time synchronization message is located is used as the identifier for detecting and transmitting the time synchronization time stamp, instead of identifying a certain message as in the related art.
  • the timestamp or the receiving timestamp can be determined, so that the indeterminate delay of sub-channel processing and packet processing is not calculated in the timestamp information when the internal processing of the device is performed, and the timestamp information is guaranteed to the utmost extent. Accuracy improves time synchronization accuracy.
  • the information processing apparatus of the embodiment of the present disclosure includes: a processor 601 and a transceiver 602;
  • the transceiver 602 is configured to receive a packet sent by the sending end, and identify the packet.
  • the processor 601 is configured to: when the target frame format identifier of the channel is identified, record the received timestamp information when the target frame format identifier is identified; and use the received timestamp information as the time carried in the channel.
  • the time synchronization message includes a sending timestamp determined according to the sending timestamp information generated by the sending end when the target frame format identifier is identified.
  • the processor 601 is further configured to: acquire a sending timestamp in the time synchronization message; perform time synchronization processing according to the receiving timestamp and the sending timestamp.
  • the target frame format identifier of the channel in which the time synchronization message is located is used as the identifier for detecting and transmitting the time synchronization time stamp, instead of identifying a certain message as in the related art.
  • the timestamp or the receiving timestamp can be determined, so that the indeterminate delay of sub-channel processing and packet processing is not calculated in the timestamp information when the internal processing of the device is performed, and the timestamp information is guaranteed to the utmost extent. Accuracy improves time synchronization accuracy.
  • the communication device of the embodiment of the present disclosure includes:
  • the processor 700 is configured to read a program in the memory 720 and perform the following process:
  • the transmission timestamp information is generated; the transmission timestamp information is used as the transmission timestamp of the time synchronization message; and the transceiver is sent to the receiving end by the transceiver 710.
  • the time synchronization message is carried in the channel, and the time synchronization message includes the sending timestamp;
  • the transceiver 710 is configured to receive and transmit data under the control of the processor 700.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 700 and various circuits of memory represented by memory 720.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 710 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 in performing operations.
  • the processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 in performing operations.
  • the target frame format identifier is a frame format identifier of the channel formed by multiplexing the multiple subchannels when the channel includes multiple subchannels.
  • the processor 700 is further configured to read the computer program, and perform the following steps:
  • the time synchronization message When the time synchronization message includes a time synchronization message, the time synchronization message is carried in any time slot position of the channel;
  • time synchronization message When the time synchronization message includes multiple time synchronization messages, multiple time synchronization messages are respectively carried in different time slot positions of the channel.
  • the processor 700 is further configured to read the computer program, and perform the following steps:
  • the multiple time synchronization messages are carried in different time slot positions of one of the multiple subchannels; or multiple time synchronization messages are carried. Any slot position in a different subchannel.
  • the communication device of the embodiment of the present disclosure includes:
  • the processor 800 is configured to read a program in the memory 820 and perform the following process:
  • the receiving timestamp information is used as the receiving timestamp of the time synchronization message; wherein the time synchronization message is carried in the channel, and the time synchronization message includes the target being identified according to the sending end.
  • a transmission timestamp determined by transmitting a timestamp information generated when the frame format is identified;
  • the transceiver 810 is configured to receive and transmit data under the control of the processor 800.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 800 and various circuits of memory represented by memory 820.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 810 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 in performing operations.
  • the processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 in performing operations.
  • the processor 800 is further configured to read the computer program and perform the following steps:
  • Time synchronization processing is performed according to the reception time stamp and the transmission time stamp.
  • a computer readable storage medium of an embodiment of the present disclosure is configured to store a computer program executable by a processor to implement the following steps:
  • the target frame format identifier is a frame format identifier of the channel formed by multiplexing the multiple subchannels when the channel includes multiple subchannels.
  • the time synchronization message When the time synchronization message includes a time synchronization message, the time synchronization message is carried in any time slot position of the channel;
  • time synchronization message When the time synchronization message includes multiple time synchronization messages, multiple time synchronization messages are respectively carried in different time slot positions of the channel.
  • time synchronization message When the time synchronization message includes multiple time synchronization messages, multiple time synchronization messages are carried in different time slot positions of one of the multiple subchannels; or multiple time synchronization reports are used.
  • the text is carried in any slot position of different subchannels.
  • a computer readable storage medium of an embodiment of the present disclosure is configured to store a computer program executable by a processor to implement the following steps:
  • the received timestamp information when the target frame format identifier is identified is recorded;
  • the receiving timestamp information is used as a receiving timestamp of a time synchronization message carried in the channel;
  • the time synchronization message includes a sending timestamp determined according to the sending timestamp information generated by the sending end when the target frame format identifier is identified.
  • the method further includes:
  • Time synchronization processing is performed according to the reception time stamp and the transmission time stamp.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

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Abstract

本公开提供一种信息处理方法和装置、通信设备及计算机可读存储介质。本公开的信息处理方法包括：当识别到时间同步报文所在通道的目标帧格式标识时，生成发送时间戳信息；将所述发送时间戳信息作为所述时间同步报文的发送时间戳；向接收端发送报文，其中，所述时间同步报文承载在所述通道中，且所述时间同步报文中包括所述发送时间戳。

Description

信息处理方法和装置、通信设备及计算机可读存储介质
相关申请的交叉引用
本申请主张在2018年1月2日在中国提交的中国专利申请No.201810000862.2的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种信息处理方法和装置、通信设备及计算机可读存储介质。
背景技术
网络传输时间采用PTP(Precision Time Protocol，精确时间协议)协议可满足高精度时间要求。PTP时间同步采用延时计算机制进行，主从设备通过记录设备之间报文传递时产生的时间戳，计算出主从设备之间的路径延迟和时间偏移，实现主从设备之间的时间同步。
其中，每个PTP报文在发送端填写的是针对该PTP报文的发送时刻的时间戳信息，在接收端记录的时间戳信息是接收到某个PTP报文的时间戳信息。
在设备内部处理过程中，发送端，生成PTP报文后准备发送时会填写发送时刻的时间戳，放入PTP报文，然后PTP报文再经过发送接口的MAC层(Media Access Control，介质访问控制)或PHY(物理)层处理，直至真正发送出去。在发送时间戳信息放入PTP报文之后，直至PTP报文从接口发送出去，存在延时△T1。也就是说，PTP报文的发送时间戳信息存在误差。而且，由于发送时间戳信息对应某个PTP报文，因此，发送时间戳信息必须在能够识别单个PTP报文时就记录和插入。在封装阶段，能够识别单个报文在设备内部属于比较高层的处理，之后还要经过物理层处理以及排队发送等，在这个过程中，延时△T1可能是不固定的值。
在接收端，当设备检测到PTP报文时，会记录接收时刻的时间戳，用于后续PTP协议处理。在PTP报文到达接收端，到设备检测到报文并记录接收时刻的时间戳，存在延时△T2。也就是说，PTP接收时间戳信息存在误差。 而且，由于接收时间戳信息对应某个报文，因此，接收时间戳信息必须在能够识别单个报文时记录，能够识别单个报文在设备内部属于比较高层的处理，也就是说，延时△T2会比较大。
从相关技术的处理可以看到，发送端和接收端处理时间戳的位置都在能够识别单个报文阶段，时间戳对应的是某个PTP报文发送和接收时刻，符合PTP协议。问题是发送时间戳信息与PTP从接口发送时刻之间的差值延时△T1，以及接收时间戳信息与PTP实际接收时刻之间的差值延时△T2较大，引入时间误差，影响设备时间精度。当业务的时间精度需求进一步提升时，该方案的精度无法满足要求。
对于基于TDM(Time Division Multiplexing，时分复用)机制的传输技术，报文需要封装入特定的帧格式，构成一个逻辑通道，并且为了适应5G切片等需求，不同逻辑通道可以进一步组合为一个物理通道。那么现有PTP技术处理时间戳的误差问题会更为突出，这是因为报文封装入特定的帧格式再到发送，延时△T1将会更大。在接收端，从帧格式中解析并识别出报文，△T2也会更大。由此可以看出，相关技术的时间同步精度较低。
发明内容
有鉴于此，本公开提供一种信息处理方法和装置、通信设备及计算机可读存储介质，用以提高时间同步精度。
为解决上述技术问题，第一方面，本公开实施例提供一种信息处理方法，应用于发送端，包括：
当识别到时间同步报文所在通道的目标帧格式标识时，生成发送时间戳信息；
将所述发送时间戳信息作为所述时间同步报文的发送时间戳；
向接收端发送报文，其中，所述时间同步报文承载在所述通道中，且所述时间同步报文中包括所述发送时间戳。
其中，当所述通道包括多个子通道时，所述目标帧格式标识为所述多个子通道复用形成的所述通道的帧格式标识。
其中，当所述时间同步报文包括一个时间同步报文时，将所述时间同步 报文承载在所述通道的任意时隙位置；
当所述时间同步报文包括多个时间同步报文时，将多个时间同步报文分别承载在所述通道的不同时隙位置。
其中，当所述时间同步报文包括多个时间同步报文时，将多个时间同步报文承载在所述多个子通道中的一个子通道的不同时隙位置；或者将多个时间同步报文承载在不同的子通道的任意时隙位置。
第二方面，本公开实施例提供一种信息处理方法，应用于接收端，包括：
接收发送端发送的报文，并对所述报文进行识别；
当识别到通道的目标帧格式标识时，记录识别到所述目标帧格式标识时的接收时间戳信息；
将所述接收时间戳信息作为所述通道中承载的时间同步报文的接收时间戳；
其中，所述时间同步报文中包括根据所述发送端在识别到所述目标帧格式标识时生成的发送时间戳信息而确定的发送时间戳。
其中，所述方法还包括：
获取所述时间同步报文中的发送时间戳；
根据所述接收时间戳和所述发送时间戳进行时间同步处理。
第三方面，本公开实施例提供一种信息处理装置，包括：处理器和收发器；
所述处理器，用于当识别到时间同步报文所在通道的目标帧格式标识时，生成发送时间戳信息；将所述发送时间戳信息作为所述时间同步报文的发送时间戳；
所述收发器，用于向接收端发送报文，其中，所述时间同步报文承载在所述通道中，且所述时间同步报文中包括所述发送时间戳。
其中，当所述通道包括多个子通道时，所述目标帧格式标识为所述多个子通道复用形成的所述通道的帧格式标识。
其中，当所述时间同步报文包括一个时间同步报文时，所述处理器还用于，将所述时间同步报文承载在所述通道的任意时隙位置；
当所述时间同步报文包括多个时间同步报文时，所述处理器还用于，将 多个时间同步报文分别承载在所述通道的不同时隙位置。
其中，当所述时间同步报文包括多个时间同步报文时，所述处理器还用于，将多个时间同步报文承载在所述多个子通道中的一个子通道的不同时隙位置；或者所述处理器还用于，将多个时间同步报文承载在不同的子通道的任意时隙位置。
第四方面，本公开实施例提供一种信息处理装置，包括：处理器和收发器；
所述收发器，用于接收发送端发送的报文，并对所述报文进行识别；
所述处理器，用于当识别到所述报文的目标帧格式标识时，记录识别到所述目标帧格式标识时的接收时间戳信息；将所述接收时间戳信息作为时间同步报文的接收时间戳；
其中，所述时间同步报文承载在通道中，所述时间同步报文中包括根据所述发送端在识别到所述目标帧格式标识时生成的发送时间戳信息而确定的发送时间戳。
其中，所述处理器还用于，获取所述时间同步报文中的发送时间戳；根据所述接收时间戳和所述发送时间戳进行时间同步处理。
第五方面，本公开实施例提供一种通信设备，包括：收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序；所述计算机程序被处理器执行时实现如第一方面所述的方法中的步骤；或者所述计算机程序被处理器执行时实现如第二方面所述的方法中的步骤。
第六方面，本公开实施例提供一种计算机可读存储介质，用于存储计算机程序，所述计算机程序被处理器执行时实现如第一方面所述的方法中的步骤。
第七方面，本公开实施例提供一种计算机可读存储介质，用于存储计算机程序，所述计算机程序被处理器执行时实现如第二方面所述的方法中的步骤。
本公开的上述技术方案的有益效果如下：
由上可以看出，在本公开实施例中，利用时间同步报文所在通道的目标帧格式标识作为检测和发送时间同步时间戳的标识，而不是像相关技术那样， 在识别到某个报文时才能确定发送时间戳或者接收时间戳，从而可以保证设备内部处理时，子通道处理和报文处理的不确定的时延不会计算在时间戳信息中，最大限度的保证了时间戳信息的准确性，提升了时间同步精度。
附图说明
图1为本公开实施例的信息处理方法的流程图；
图2(a)-图2(b)为本公开实施例的时间同步报文的承载示意图；
图3(a)-图3(d)为本公开实施例的时间同步报文的承载示意图；
图4为本公开实施例的信息处理方法的流程图；
图5为本公开实施例的信息处理装置的示意图；
图6为本公开实施例的信息处理装置的示意图；
图7为本公开实施例的通信设备的示意图；
图8为本公开实施例的通信设备的示意图。
具体实施方式
下面将结合附图和实施例，对本公开的具体实施方式作进一步详细描述。以下实施例用于说明本公开，但不用来限制本公开的范围。
如图1所示，本公开实施例的信息处理方法，应用于发送端，包括以下步骤101至103。
步骤101、当识别到时间同步报文所在通道的目标帧格式标识时，生成发送时间戳信息。
步骤102、将所述发送时间戳信息作为所述时间同步报文的发送时间戳。
在本公开实施例中，对目标帧格式标识的具体组成和具体形式不做限定，例如，它可以是用于表示通道的管理信息，可以是用于通道标识的信息，可以是用于通道复用的信息等。
在实际应用中，发送端设备以时间同步报文所在通道的目标帧格式标识作为处理时间同步时间戳的标识，当识别到该目标帧格式标识后处理时间戳信息。具体地，当发送端设备发送处理该目标帧格式标识时，生成发送时间戳信息，将该时间戳信息放入该通道所承载的时间同步报文中，作为该时间 同步报文的发送时间戳。
当所述通道包括多个子通道时，所述目标帧格式标识为所述多个子通道复用形成的所述通道的帧格式标识。
步骤103、向接收端发送报文，其中，所述时间同步报文承载在所述通道中，且所述时间同步报文中包括所述发送时间戳。
其中，所述报文包括帧头和数据包。
为提供对时间同步报文的冗余保护，发送端处理该目标帧格式标识，生成发送时间戳信息。该通道所承载的时间同步报文可以为多个时间同步报文，而多个时间同步报文放入该通道的不同时隙位置。当该通道包含多个子通道时，该通道所承载的时间同步报文可以为多个时间同步报文，多个时间同步报文放入不同的子通道，或者同一子通道的不同时隙位置。
例如，通道中承载的时间同步报文可以有一个或者多个。如果承载一个时间同步报文，那么，如图2(a)和图2(b)所示，时间同步报文承载在所述通道的任意时隙位置。通过图2(a)和图2(b)可以看出，该通道所承载的时间同步报文可以放入该通道的不同时隙位置。
结合图2(a)和图2(b)，当在帧格式标识的第2个时隙位置上识别到目标帧格式标识时，即生成发送时间戳信息。而时间同步报文可承载在该通道的不同时隙位置上。
当所述通道包括多个子通道时，如图3(a)、图3(b)、图3(c)、图3(d)所示，当只有一个时间同步报文时，可将一个时间同步报文承载在不同的子通道中；当有多个时间同步报文时，可将多个时间同步报文承载在所述多个子通道中的一个子通道的不同时隙位置，或者将多个时间同步报文承载在不同的子通道的任意时隙位置。
由上可以看出，在本公开实施例中，利用时间同步报文所在通道的目标帧格式标识作为检测和发送时间同步时间戳的标识，而不是像相关技术那样，在识别到某个报文时才能确定发送时间戳或者接收时间戳，从而可以保证设备内部处理时，子通道处理和报文处理的不确定的时延不会计算在时间戳信息中，最大限度的保证了时间戳信息的准确性，提升了时间同步精度。此外，本公开实施例可以应用于更高精度网络的演进方案。
如图4所示，本公开实施例的信息处理方法，应用于接收端，包括：
步骤401、接收发送端发送的报文，并对所述报文进行识别；
步骤402、当识别到通道的目标帧格式标识时，记录识别到所述目标帧格式标识时的接收时间戳信息；
步骤403、将所述接收时间戳信息作为所述通道中承载的时间同步报文的接收时间戳。
其中，所述时间同步报文中包括根据所述发送端在识别到所述目标帧格式标识时生成的发送时间戳信息而确定的发送时间戳。
在接收端，当接收端设备检测到该目标帧格式标识时，记录检测到该目标帧格式标识的时间戳信息作为接收时间戳，将该接收时间戳作为该通道所承载的时间同步报文的接收时刻信息。
为提供时间同步报文的冗余保护，当同一通道内有多个时间同步报文时，当接收端检测到该目标帧格式标识时，记录检测到该目标帧格式标识的时间戳信息作为接收时间戳，将该接收时间戳作为该通道所承载的多个时间同步报文的接收时刻信息。
由上可以看出，在本公开实施例中，利用时间同步报文所在通道的目标帧格式标识作为检测和发送时间同步时间戳的标识，而不是像相关技术那样，在识别到某个报文时才能确定发送时间戳或者接收时间戳，从而可以保证设备内部处理时，子通道处理和报文处理的不确定的时延不会计算在时间戳信息中，最大限度的保证了时间戳信息的准确性，提升了时间同步精度。
此外，在图4所示实施例的基础上，接收端还可获取所述时间同步报文中的发送时间戳，根据所述接收时间戳和所述发送时间戳进行时间同步处理。其中，根据所述接收时间戳和所述发送时间戳进行时间同步处理的过程和相关技术的相同。
如图5所示，本公开实施例的信息处理装置，包括：处理器501和收发器502；
所述处理器501，用于当识别到时间同步报文所在通道的目标帧格式标识时，生成发送时间戳信息；将所述发送时间戳信息作为所述时间同步报文的发送时间戳；
所述收发器502，用于向接收端发送报文，其中，所述时间同步报文承载在所述通道中，且所述时间同步报文中包括所述发送时间戳。
可选的，当所述通道包括多个子通道时，所述目标帧格式标识为所述多个子通道复用形成的所述通道的帧格式标识。
其中，当所述时间同步报文包括一个时间同步报文时，所述处理器501还用于，将所述时间同步报文承载在所述通道的任意时隙位置；当所述时间同步报文包括多个时间同步报文时，所述处理器501还用于，将多个时间同步报文分别承载在所述通道的不同时隙位置。
其中，当所述时间同步报文包括多个时间同步报文时，所述处理器501还用于，将多个时间同步报文承载在所述多个子通道中的一个子通道的不同时隙位置；或者所述处理器501还用于，将多个时间同步报文承载在不同的子通道的任意时隙位置。
由上可以看出，在本公开实施例中，利用时间同步报文所在通道的目标帧格式标识作为检测和发送时间同步时间戳的标识，而不是像相关技术那样，在识别到某个报文时才能确定发送时间戳或者接收时间戳，从而可以保证设备内部处理时，子通道处理和报文处理的不确定的时延不会计算在时间戳信息中，最大限度的保证了时间戳信息的准确性，提升了时间同步精度。
如图6所示，本公开实施例的信息处理装置，包括：处理器601和收发器602；
所述收发器602，用于接收发送端发送的报文，并对所述报文进行识别；
所述处理器601，用于当识别到通道的目标帧格式标识时，记录识别到所述目标帧格式标识时的接收时间戳信息；将所述接收时间戳信息作为所述通道中承载的时间同步报文的接收时间戳；
其中，所述时间同步报文中包括根据所述发送端在识别到所述目标帧格式标识时生成的发送时间戳信息而确定的发送时间戳。
其中，所述处理器601还用于，获取所述时间同步报文中的发送时间戳；根据所述接收时间戳和所述发送时间戳进行时间同步处理。
由上可以看出，在本公开实施例中，利用时间同步报文所在通道的目标帧格式标识作为检测和发送时间同步时间戳的标识，而不是像相关技术那样， 在识别到某个报文时才能确定发送时间戳或者接收时间戳，从而可以保证设备内部处理时，子通道处理和报文处理的不确定的时延不会计算在时间戳信息中，最大限度的保证了时间戳信息的准确性，提升了时间同步精度。
如图7所示，本公开实施例的通信设备，包括：
处理器700，用于读取存储器720中的程序，执行下列过程：
当识别到时间同步报文所在通道的目标帧格式标识时，生成发送时间戳信息；将所述发送时间戳信息作为所述时间同步报文的发送时间戳；通过收发机710向接收端发送报文，其中，所述时间同步报文承载在所述通道中，且所述时间同步报文中包括所述发送时间戳；
收发机710，用于在处理器700的控制下接收和发送数据。
其中，在图7中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器700代表的一个或多个处理器和存储器720代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机710可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器700负责管理总线架构和通常的处理，存储器720可以存储处理器700在执行操作时所使用的数据。
处理器700负责管理总线架构和通常的处理，存储器720可以存储处理器700在执行操作时所使用的数据。
其中，当所述通道包括多个子通道时，所述目标帧格式标识为所述多个子通道复用形成的所述通道的帧格式标识。
处理器700还用于读取所述计算机程序，执行如下步骤:
当所述时间同步报文包括一个时间同步报文时，将所述时间同步报文承载在所述通道的任意时隙位置；
当所述时间同步报文包括多个时间同步报文时，将多个时间同步报文分别承载在所述通道的不同时隙位置。
处理器700还用于读取所述计算机程序，执行如下步骤:
当所述时间同步报文包括多个时间同步报文时，将多个时间同步报文承 载在所述多个子通道中的一个子通道的不同时隙位置；或者将多个时间同步报文承载在不同的子通道的任意时隙位置。
如图8所示，本公开实施例的通信设备，包括：
处理器800，用于读取存储器820中的程序，执行下列过程：
通过收发机810接收发送端发送的报文，并对所述报文进行识别；当识别到所述报文的目标帧格式标识时，记录识别到所述目标帧格式标识时的接收时间戳信息；将所述接收时间戳信息作为时间同步报文的接收时间戳；其中，所述时间同步报文承载在通道中，所述时间同步报文中包括根据所述发送端在识别到所述目标帧格式标识时生成的发送时间戳信息而确定的发送时间戳；
收发机810，用于在处理器800的控制下接收和发送数据。
其中，在图8中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器800代表的一个或多个处理器和存储器820代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机810可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器800负责管理总线架构和通常的处理，存储器820可以存储处理器800在执行操作时所使用的数据。
处理器800负责管理总线架构和通常的处理，存储器820可以存储处理器800在执行操作时所使用的数据。
处理器800还用于读取所述计算机程序，执行如下步骤:
获取所述时间同步报文中的发送时间戳；
根据所述接收时间戳和所述发送时间戳进行时间同步处理。
此外，本公开实施例的计算机可读存储介质，用于存储计算机程序，所述计算机程序可被处理器执行实现以下步骤：
当识别到时间同步报文所在通道的目标帧格式标识时，生成发送时间戳信息；
将所述发送时间戳信息作为所述时间同步报文的发送时间戳；
向接收端发送报文，其中，所述时间同步报文承载在所述通道中，且所述时间同步报文中包括所述发送时间戳。
其中，当所述通道包括多个子通道时，所述目标帧格式标识为所述多个子通道复用形成的所述通道的帧格式标识。
其中，当所述时间同步报文包括一个时间同步报文时，将所述时间同步报文承载在所述通道的任意时隙位置；
当所述时间同步报文包括多个时间同步报文时，将多个时间同步报文分别承载在所述通道的不同时隙位置。
其中，当所述时间同步报文包括多个时间同步报文时，将多个时间同步报文承载在所述多个子通道中的一个子通道的不同时隙位置；或者将多个时间同步报文承载在不同的子通道的任意时隙位置。
此外，本公开实施例的计算机可读存储介质，用于存储计算机程序，所述计算机程序可被处理器执行实现以下步骤：
接收发送端发送的报文，并对所述报文进行识别；
当识别到通道的目标帧格式标识时，记录识别到所述目标帧格式标识时的接收时间戳信息；
将所述接收时间戳信息作为所述通道中承载的时间同步报文的接收时间戳；
其中，所述时间同步报文中包括根据所述发送端在识别到所述目标帧格式标识时生成的发送时间戳信息而确定的发送时间戳。
其中，所述方法还包括：
获取所述时间同步报文中的发送时间戳；
根据所述接收时间戳和所述发送时间戳进行时间同步处理。
在本申请所提供的几个实施例中，应该理解到，所揭露方法和装置，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连 接，可以是电性，机械或其它的形式。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述收发方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述是本公开的可选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (15)

  1. 一种信息处理方法，应用于发送端，包括：
    当识别到时间同步报文所在通道的目标帧格式标识时，生成发送时间戳信息；
    将所述发送时间戳信息作为所述时间同步报文的发送时间戳；
    向接收端发送报文，其中，所述时间同步报文承载在所述通道中，且所述时间同步报文中包括所述发送时间戳。
  2. 根据权利要求1所述的方法，其中，当所述通道包括多个子通道时，所述目标帧格式标识为所述多个子通道复用形成的所述通道的帧格式标识。
  3. 根据权利要求1所述的方法，其中，当所述时间同步报文包括一个时间同步报文时，将所述时间同步报文承载在所述通道的任意时隙位置；
    当所述时间同步报文包括多个时间同步报文时，将多个时间同步报文分别承载在所述通道的不同时隙位置。
  4. 根据权利要求2所述的方法，其中，当所述时间同步报文包括多个时间同步报文时，将多个时间同步报文承载在所述多个子通道中的一个子通道的不同时隙位置；或者将多个时间同步报文承载在不同的子通道的任意时隙位置。
  5. 一种信息处理方法，应用于接收端，包括：
    接收发送端发送的报文，并对所述报文进行识别；
    当识别到通道的目标帧格式标识时，记录识别到所述目标帧格式标识时的接收时间戳信息；
    将所述接收时间戳信息作为所述通道中承载的时间同步报文的接收时间戳；
    其中，所述时间同步报文中包括根据所述发送端在识别到所述目标帧格式标识时生成的发送时间戳信息而确定的发送时间戳。
  6. 根据权利要求5所述的方法，还包括：
    获取所述时间同步报文中的发送时间戳；
    根据所述接收时间戳和所述发送时间戳进行时间同步处理。
  7. 一种信息处理装置，包括：处理器和收发器；
    所述处理器，用于当识别到时间同步报文所在通道的目标帧格式标识时，生成发送时间戳信息；将所述发送时间戳信息作为所述时间同步报文的发送时间戳；
    所述收发器，用于向接收端发送报文，其中，所述时间同步报文承载在所述通道中，且所述时间同步报文中包括所述发送时间戳。
  8. 根据权利要求7所述的装置，其中，当所述通道包括多个子通道时，所述目标帧格式标识为所述多个子通道复用形成的所述通道的帧格式标识。
  9. 根据权利要求7所述的装置，其中，当所述时间同步报文包括一个时间同步报文时，所述处理器还用于，将所述时间同步报文承载在所述通道的任意时隙位置；
    当所述时间同步报文包括多个时间同步报文时，所述处理器还用于，将多个时间同步报文分别承载在所述通道的不同时隙位置。
  10. 根据权利要求8所述的装置，其中，当所述时间同步报文包括多个时间同步报文时，所述处理器还用于，将多个时间同步报文承载在所述多个子通道中的一个子通道的不同时隙位置；或者所述处理器还用于，将多个时间同步报文承载在不同的子通道的任意时隙位置。
  11. 一种信息处理装置，包括：处理器和收发器；
    所述收发器，用于接收发送端发送的报文，并对所述报文进行识别；
    所述处理器，用于当识别到通道的目标帧格式标识时，记录识别到所述目标帧格式标识时的接收时间戳信息；将所述接收时间戳信息作为所述通道中承载的时间同步报文的接收时间戳；
    其中，所述时间同步报文中包括根据所述发送端在识别到所述目标帧格式标识时生成的发送时间戳信息而确定的发送时间戳。
  12. 根据权利要求11所述的装置，其中，
    所述处理器还用于，获取所述时间同步报文中的发送时间戳；根据所述接收时间戳和所述发送时间戳进行时间同步处理。
  13. 一种通信设备，包括：收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序；其中，
    所述计算机程序被处理器执行时实现如权利要求1至4中任一项所述的方法中的步骤；或者
    所述计算机程序被处理器执行时实现如权利要求5至6中任一项所述的方法中的步骤。
  14. 一种计算机可读存储介质，用于存储计算机程序，其中，
    所述计算机程序被处理器执行时实现如权利要求1至4中任一项所述的方法中的步骤。
  15. 一种计算机可读存储介质，用于存储计算机程序，其中，所述计算机程序被处理器执行时实现如权利要求5至6中任一项所述的方法中的步骤。
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