WO2012051881A1

WO2012051881A1 - Method and device for controlling data processing

Info

Publication number: WO2012051881A1
Application number: PCT/CN2011/078541
Authority: WO
Inventors: 叶炜威
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-10-19
Filing date: 2011-08-17
Publication date: 2012-04-26
Also published as: CN101984704A

Abstract

Disclosed in the present invention is a data control method which is used for realizing reliable transmission of data and improving the retransmission efficiency and stability of ARQ. The method comprises the following steps: obtaining the start time and end time of frequency point scanning; when the scanning start time arrives, suspending a retransmission timer, a time to live (TTL) timer and a window synchronization timer, and suspending processing the data in the sliding window; when the scanning end time arrives, recovering the retransmission timer, the TTL timer and the window synchronization timer, and recovering processing the data in the sliding window. The present invention also discloses a device for realizing the method.

Description

Data processing control method and device

The present invention relates to the field of wireless communications, and in particular, to a data processing control method and apparatus. Background technique

Automatic Repeat-reQuest (ARQ) in a wireless network is a media access control (MAC, Media Access Control) layer transmission guarantee technology based on data block retransmission. The receiver requests the sender to retransmit the error. The data message, to re-receive the erroneous message, and prevent unrestricted retransmission of data through multiple timers, is one of the methods used in the communication to deal with errors caused by the channel.

Scanning is a way for the scanning initiator to obtain the signal quality of other frequencies. When the scan is initiated, the scan initiator changes the frequency to obtain the signal quality of other frequencies. Therefore, during the scan, the scan initiator loses the communication connection with the original station due to the frequency change, and cannot signal with the original station. Interact with data.

During the scanning process, the ARQ receiving end, that is, the data receiving end cannot send the feedback message to the ARQ sending end, that is, the data sending end sends the feedback message, and the ARQ sending end cannot receive the data and signaling message. In the case of a feedback message, data retransmission is continuously performed, and the data block is discarded after the lifetime timer expires. Therefore, retransmission cannot be performed when the retransmission is required at the end of scanning, and a large number of ARQ Discards are caused ( The ARQ discards the message and encroaches on the air interface bandwidth. If the window synchronization timer expires, the ARQ sender initiates an ARQ Reset (ARQ Reset) process. If the ARQ receiver does not receive the ARQ Reset message reply from the ARQ sender, a MAC reset will be initiated, which will result in link transmission. The quality deteriorates drastically, or the MAC connection is reset and other serious conditions. Summary of the invention

The embodiment of the invention provides a data processing control method, which is used for realizing reliable transmission of data, improving ARQ retransmission efficiency and retransmission stability.

A data processing control method, comprising:

Obtain the start time and end time of the frequency point scan;

When the start time is reached, the retransmission timer, the lifecycle timer, and the window synchronization timer are suspended, and the processing of the data in the sliding window is suspended;

Upon reaching the end time, the retransmission timer, the lifecycle timer, and the window synchronization timer are restored, and the processing of the data in the sliding window is resumed.

A data processing control method, comprising:

Determining the start time and end time of the frequency point scan;

Sending a scan parameter that directly or indirectly indicates the start time and end time of the scan to the peer network element, or when the start time is reached, sending a scan start message, and when the end time is reached, sending a scan end message to indicate the opposite end When the network element reaches the scan start time, the retransmission timer, the lifecycle timer, and the window synchronization timer are suspended, and the processing of the data in the sliding window is suspended. When the scan end time is reached, the retransmission timer and the life cycle are resumed. A timer and a window synchronization timer, and resume processing of data in the sliding window.

A data processing control device, including: a processing unit, a first timer unit, and a first transceiver unit;

a processing unit, configured to acquire a start time and an end time of the frequency point scan; and when the start time is reached, suspend the retransmission timer, the life cycle timer, and the window synchronization timer, and suspend processing of the data in the sliding window When the end time is reached, the retransmission timer, the lifecycle timer, and the window synchronization timer are restored, and the processing of the data in the sliding window is resumed;

a first timer unit, configured to provide a retransmission timer, a lifecycle timer, and a window synchronization timer; The first transceiver unit is configured to provide a sliding window.

A data processing control device, comprising: a second scanning unit and a second transceiver unit; wherein, the second scanning unit is configured to determine a start time and an end time of the frequency point scanning;

a second transceiver unit, configured to send, to the peer network element, a scan parameter that directly or indirectly indicates a start time and an end time of the scan, or send a scan start message when the start time is reached, and send a scan when the end time is reached. Ending the message to instruct the peer network element to suspend the retransmission timer, the lifecycle timer, and the window synchronization timer when the scan start time is reached, and suspend processing of the data in the sliding window. When the scan end time is reached, the weight is restored. The timer, lifecycle timer, and window synchronization timer are passed, and the processing of data in the sliding window is resumed.

In the embodiment of the present invention, the start and end time of the scan are acquired; when the scan start time is reached, the retransmission timer, the life cycle timer, and the window synchronization timer are turned off, and the processing of the data in the sliding window is suspended; when the scan end time is reached , resumes the retransmission timer, lifecycle timer, and window synchronization timer, and resumes processing of data in the sliding window. Thereby avoiding unnecessary data retransmission and reducing data block loss. At the same time, unnecessary ARQ reset process and MAC reset due to failure of the ARQ Reset process can be avoided, reliable data transmission is realized, and ARQ retransmission is improved. Efficiency and retransmission stability. DRAWINGS

1 is a main structural diagram of a data processing control apparatus according to an embodiment of the present invention;

2A is a detailed structural diagram when the data processing control apparatus is the first network element in the embodiment of the present invention;

2B is a detailed structural diagram of the data processing control apparatus when the data processing control apparatus is the second network element according to the embodiment of the present invention;

3 is a main flowchart of a data processing control method according to an embodiment of the present invention;

4 is a detailed flowchart of a data processing control method according to an embodiment of the present invention;

FIG. 5 is a scanning response message carried in a scan response message returned by a second network element according to an embodiment of the present invention Detailed flow chart of the time data processing control method;

FIG. 6 is a detailed flowchart of a data processing control method when a second network element is a scan initiator according to an embodiment of the present invention. detailed description

In the embodiment of the present invention, the start and end time of the scan are acquired; when the scan start time is reached, the retransmission timer, the life cycle timer, and the window synchronization timer are turned off, and the processing of the data in the sliding window is suspended; when the scan end time is reached , resumes the retransmission timer, lifecycle timer, and window synchronization timer, and resumes processing of data in the sliding window. Thereby avoiding unnecessary data retransmission and reducing data block loss, and avoiding unnecessary ARQ reset process and MAC reset caused by failure of the ARQ Reset process, realizing reliable data transmission and improving ARQ retransmission efficiency And retransmission stability.

In the embodiment of the present invention, the data sending end is the ARQ sending end, and the data receiving end is the ARQ receiving end. The scan initiator is not directly related to data transmission or reception. The scan initiator can be located at the data sender or at the data receiver.

As shown in FIG. 1 , the data processing control device in the embodiment of the present invention is a network element. The embodiment of the present invention needs to be separately described from the data sending end and the data receiving end. Therefore, the network element is divided into the first network element 101 and the first The second network element 102 is a first network element 101 when the device is a data transmitting end, and is a second network element 102 when the device is a data receiving end.

The first network element 101 is configured to suspend the timer when the scan starts, and to resume the timer when the scan ends. The timer includes a retransmission timer, a lifecycle timer, and a window synchronization timer. The retransmission timer is used to ensure that the feedback message of the ARQ receiving end (ie, the data receiving end) is not received within one period. The data is retransmitted; the lifecycle timer is used to define the lifetime of a data block. When the timer expires, the ARQ sender (ie, the data sender) sends an ARQ Discard message to the ARQ receiver to notify the ARQ to receive. The data block has been discarded, no data retransmission is performed; the window synchronization timer is used to ensure the normality of the current window. Move, when the timer expires, the ARQ sender initiates the ARQ Reset process. The current window refers to a sliding window of the data sending end, and the data sending end saves the data block to be sent in the sliding window for sending, and does not immediately remove the sent data block from the sliding window after the sending is completed, when the second When the network element 102 feeds back an ACK or a NACK, it processes the transmitted data block, that is, retransmits or removes the sliding window. The first network element 101 is further configured to acquire a start and an end time of the scan. The first network element 101 is also used to initiate a scan. When the first network element 101 initiates a scan, the scan request is sent to the second network element 102, and the second network element 102 returns a scan response message to the first network element 101. The scan response message may carry the scan parameter, and the first network element 101 The scan parameters can be used to know the start and end of the scan to determine when to pause and resume each timer, and whether to process the data in the sliding window. Alternatively, after the first network element 101 initiates scanning, the scanning start is determined at the time of receiving the scan start message sent by the second network element 102, and the retransmission timer, the lifecycle timer, and the window synchronization timer are suspended, and suspended. Processing the data in the sliding window; determining the end of the scanning at the time of receiving the scanning end message sent by the second network element 102, and restoring the retransmission timer, the life cycle timer and the window synchronization timer, and restoring the sliding window Processing of data. Alternatively, when the first network element 101 initiates the scan, it determines the start time and the end time of the scan by itself to determine when to pause and resume each timer, and whether to process the data in the sliding window, which may be second to the start of the scan. The network element 102 sends a scan start message and sends a scan end message to the second network element 102 at the end of the scan, or sends a scan request to the second network element 102 when the scan is initiated. The scan request carries the scan parameter, and the second network element 102 can learn the start time and duration of the scan by using the scan parameter, so as to know the start time and the end time of the scan. Or, the second network element 102 initiates a scan, and sends a message to the first network element 101, where the message may carry a scan parameter, and the first network element 101 can learn the start and end time of the scan by using the scan parameter to determine Pause and resume each timer, and whether to process the data in the sliding window. Or, the second network element 102 initiates a scan, and sends a scan start message to the first network element 101 at the time when the scan starts, to instruct the first network element 101 to suspend the retransmission timer and the lifecycle timer. And the window synchronization timer, suspending the processing of the data in the sliding window, and sending a scan end message to the first network element 101 at the time when the scanning ends, to instruct the first network element 101 to resume the retransmission timer, the life cycle timer, and A window synchronization timer that resumes processing of data in the sliding window. The first network element 101 serves as a data transmitting end, and is further configured to send a data block to the second network element 102. Alternatively, the first network element 101 serves as a data receiving end, and is configured to receive the data block sent by the second network element 102. Preferably, the first network element 101 may be a terminal, and the second network element 102 may be specifically a base station, or the first network element 101 may be a base station, and the second network element 102 may be specifically a terminal. The scanning initiator may be the first network element 101 or the second network element 102.

The second network element 102 is configured to determine a start and end time of the frequency point scanning. When the scan start time is reached, a scan start message is sent to instruct the peer network element to suspend the retransmission timer, the life cycle timer, and the window synchronization timer. The processing of the data in the sliding window is suspended; when the scanning end time is reached, a scanning end message is sent to instruct the peer network element to resume the retransmission timer, the life cycle timer, and the window synchronization timer, and restore the processing of the data in the sliding window. Or, send a scan parameter, and instruct the peer network element to know the start and end time of the scan through the scan parameter. When the first network element 101 initiates scanning, the scan request SCN_REQ is sent to the second network element 102, and the second network element 102 returns a scan response message SCN_RSP to the first network element 101. The second network element 102 determines a scan parameter of the first network element 101, where at least includes: a start and a duration of the scan, from which the start and end time of the scan can be known, and the first network element 101 starts scanning. At the time point, the second network element 102 sends a scan start message to the first network element 101, instructing the first network element 101 to suspend the retransmission timer, the lifecycle timer, and the window synchronization timer according to the scan start message, in the first network. When the element 101 ends the scanning, the second network element 102 sends a scan end message to the first network element 101, instructing the first network element 101 to resume the retransmission timer, the lifecycle timer, and the window synchronization according to the scan end message. Timer. Or, the response message sent by the second network element 102 to the first network element 101 carries a scanning parameter, and the first network element 101 can learn the start and end time of the scanning by using the scanning parameter, and the first network element 101 according to the start and End time to pause and resume Multi-retransmission timer, life cycle timer and window synchronization timer. The second network element 102 serves as a data receiving end, and is configured to receive the data block sent by the first network element 101 after the scanning ends.

Referring to FIG. 2A, when the device is the first network element 101, the first timer unit 1011, the first scanning unit 1012, the processing unit 1013, and the first transceiver unit 1014 are included. The apparatus can also include a storage unit 1015 and a second timer unit 1016.

The first timer unit 1011 includes: a retransmission timer, a lifecycle timer, and a window synchronization timer. The retransmission timer is configured to ensure that the ARQ receiver (ie, the data receiving end) is not received within one period. The feedback message is used for data retransmission; the lifecycle timer is used to define the life cycle of a data block. When the timer expires, the ARQ sender (ie, the data sender) sends an ARQ Discard message to the ARQ receiver. The ARQ receiver is notified that the data block has been discarded and no data retransmission is performed. The window synchronization timer is used to ensure normal movement of the sliding window. When the timer expires, the ARQ sender initiates an ARQ reset process. When the scan starts, the processing unit 1013 suspends the three timers in the first timer unit 1011, which is equivalent to turning off the first timer unit, and resumes the first timer unit 1011 when the scan ends. The first timer unit 1011 is not limited to only including the above three timers, and includes all timers related to the ARQ process. In the embodiment of the present invention, the processing manners of the timers during the scanning process are performed. Same as the above three timers.

The first scanning unit 1012 is configured to initiate a scan. The first scanning unit 1012 is configured to initiate scanning when it is necessary to obtain signal quality of other frequency points, determine the start and end time of the scanning itself, and generate a scanning request, which is sent by the first transceiver unit 1014 to the second network element 102. After receiving the scan response message returned by the second network element 102, the scanning unit 1012 generates a scan start message, the first transceiver unit 1014 sends the scan start message to the second network element 102, the scan unit 1012 starts scanning, and the first scan The unit 1012 generates a scan end message. When the first scan unit 1012 ends the scan, the first transceiver unit 1014 sends the scan end message to the second network element 102, or the scan request generated by the first scan unit 1012 carries the scan parameter. At least one of the scan parameters With the start time and duration of the scan, the second network element 102 can know the start time and duration of the scan through the scan parameters, thereby obtaining the start time and end time of the scan. Alternatively, the first scanning unit 1012 is configured to initiate a scan when a signal quality of other frequency points needs to be obtained, and generate a scan request, which is sent by the first transceiver unit 1014 to the second network element 102. After receiving the scan response message returned by the second network element 102, the start and end time of the scan may be known according to the scan parameters carried in the response message. When the scan start time is reached, the first scanning unit 1012 starts scanning. When the scan end time is reached, the first scanning unit 1012 ends the scan. Alternatively, the second network element 102 sends a scan start message to the first network element 101 at the time when the scan starts, and the processing unit 1013 determines the time point of receiving the scan start message as the time point when the scan starts, when the first network element 101 Upon receiving the scan start message, the first scanning unit 1012 starts scanning immediately, and the second network element 102 sends a scan end message to the first network element 101 at the time when the scan ends, and the processing unit 1013 will receive the scan end message. The point is determined as the time point at which the scanning ends. When the first network element 101 receives the scanning end message, the first scanning unit 1012 immediately ends the scanning.

The processing unit 1013 is configured to control the first timer unit 1011. The processing unit 1013 is configured to close the first timer unit 1011 when the first scanning unit 1012 starts scanning, save the remaining time of each timer in the first timer unit 1011, and when the first scanning unit 1012 ends the scanning, according to the The remaining time of each timer in a timer unit 1011 is restored to the first timer unit 1011. The first transceiver unit 1014 receives the scan start message sent by the second network element 102, and the processing unit 1013 turns off the first timer unit 1011 according to the message. Then, the first transceiver unit 1014 receives the scan end message sent by the second network element 102, and the processing unit 1013 restores the first timer unit 1011 according to the message. The processing unit 1013 may simultaneously save the remaining time of each timer in the first timer unit 1011 in the storage unit 1015 when the first timer unit 1011 is turned off, or the processing unit 1013 is in the first timer unit 1011. After the shutdown, the remaining time of each timer in the first timer unit 1011 is saved in the storage module 1015, or the processing unit 1013 may only pause each timer in the first timer unit 1011, and will not Each The remaining time in the timer is cleared, and it is not necessary to specifically save the remaining time of each timer. If the second network element 102 sends the scan parameters to the first network element 101, the processing unit 1013 knows the start and end time of the scan according to the scan parameters. The processing unit 1013 is also used to control the second timer unit 1016. The processing unit 1013 is specifically configured to: when the first transceiver unit 1014 receives the scan parameter, start the timers A and B, and calculate the duration of the timer A according to the current time and the scan start time, and calculate the current time according to the current time. The duration of the timer B is calculated by the scan end time. When the timer A times out, the remaining time of each timer in the first timer unit 1011 is saved, and the first timer unit 1011 is turned off. When the timer B times out, according to the saved timings in the first timer unit 1011. The remaining time of the device is restored to the first timer unit 1011. After the first timer unit 1011 is turned off, the first network element 101 stops transmitting data blocks, and after the first timer unit 1011 is restored, the first network element 101 continues to send data blocks to the second network element 102.

The first transceiver unit 1014 is configured to send a scan request and receive a message. The first transceiver unit 1014 is configured to send a scan request to the second network element 102 when the first scanning unit 1012 initiates scanning, and receive a scan response message returned by the second network element 102. The first transceiver unit 1014 is further configured to receive the scan start message sent by the second network element 102 at the time when the scan starts, and receive the scan end message sent by the second network element 102 at the time point when the scan ends, so that the processing unit 1013 The first timer unit 1011 is turned off according to the scan start message, and the first timer unit 1011 is restored according to the scan end message. The scan response message returned by the second network element 102 can also carry the scan parameter, and the processing unit 1013 can learn the start and end time of the scan from the scan parameter, without the second network element 102 ending at the beginning of the scan. At the time of the point, the message is sent again. The first transceiver unit 1014 is further configured to send a data block to the second network element 102 after the scanning is completed. The first transceiver unit 1014 may have a sliding window, and the data block to be sent is placed in the sliding window for transmission. After the data is sent, if the ARQ ACK (ARQ response) message sent by the ARQ receiver is received, the The message carries the data block information that has been received by the ARQ receiving end, and the processing module 1013 removes the data block that has been received by the ARQ receiving end in the sliding window, if the ARQ receiving end receives the data block. The ARQ NACK (ARQ No Answer) message is sent, and the message carries the data block information that is not received by the ARQ receiving end, and the first transceiver unit 1014 retransmits the data block that is not received by the ARQ receiving end in the sliding window. When the window synchronization timer in the first timer unit 1011 times out, the processing module 1013 initiates an ARQ Reset procedure.

The storage unit 1015 is configured to store the remaining time of each timer in the first timer unit 1011. When the processing unit 1013 turns off the first timer unit 1011, the remaining time of each timer in the first timer unit 1011 may be saved first, or after the first timer unit 1011 is turned off, the processing unit 1013 saves the first timer. When the first timer unit 1011 needs to be restored again, the first timer unit 1011 can be restored according to the remaining time of each timer stored in the storage unit 1015.

The second timer unit 1016 includes a timer A and a timer. The first network element 101 can start the timer A when the scan is initiated and or carry the scan when the second network element 102 returns a response message to the first network element 101. The second timer unit 1016 is required to use the parameter, and the scan parameter includes the start and end of the scan. The timer A is used to determine that the timer A expires, and the first timer unit 1011 is turned off. The second network element 102 sends the scan parameters to the first transceiver unit 1014. When the processing unit 1013 receives the scan parameters, the timers A and B are turned on, and the durations of the timers A and B are calculated according to the current time and the scan start time. The timer A is set from the current time to the start of the scan time, or the timer A can be turned on at any point before the scan starts, and the timer A time is set to the current time to scan. At the beginning of the time, the timer B is set to start from the current time until the end of the scan time, or the timer B can be turned on at any point before the end of the scan, until the end of the scan. . When timer A times out, indicating that scanning is started, processing unit 1013 turns off first timer unit 1011. Moreover, when the timer A times out, the processing unit 1013 may first save the remaining time of each timer in the first timer unit 1011 to the storage unit 1015, and then turn off the first timer unit 1011. Timer B is used to determine when the timer is B-ultrasound At the same time, the first timer unit 1011 is restored. The timer B expires, indicating that the scanning ends. At this time, the processing unit 1013 restores the first timer unit 1011, and the processing unit 1013 can restore each of the first timer units 1011 according to the remaining time of each timer held in the storage unit 1015. The timer is used to disable the first timer unit 1011 during the scanning process, and the first timer unit 1011 is restored after the scanning ends, thereby avoiding repeated transmission of data blocks and data block discarding during the scanning process. Possible ARQ reset process and MAC reset process to avoid degradation of link transmission quality.

Referring to FIG. 2B, when the device is the second network element 102, the second transceiver unit 1021 and the second scanning unit 1022 are included.

The second transceiver unit 1021 is configured to send a message to the first network element 101. The second transceiver unit 1021 is specifically configured to: after receiving the scan request sent by the first network element 101, return a response message to the first network element 101. The time point at which the second transceiver unit 1021 receives the scan start message sent by the first network element 101 is the time point at which the scan starts, and the time at which the second transceiver unit 1021 receives the scan end message sent by the first network element 101 is At the time when the scanning ends, the scanning request sent by the first network element 101 to the second network element 102 includes a scanning parameter, where the scanning parameter carries at least the scanning start time and duration, and the second network element 102 can pass the scanning parameter. The scan parameters know the start time and end time of the scan. Alternatively, the second scanning unit 1022 generates a scan start message. When the first network element 101 starts scanning, the second transceiver unit 1021 sends the scan start message to the first network element 101, so that the processing unit 1013 turns off the first The timer unit 1011 and the second scanning unit 1022 generate a scan end message. When the scan of the first network element 101 ends, the second transceiver unit 1021 sends the scan end message to the first network element 101 to enable the processing unit. 1013 restores the first timer unit 1011. Alternatively, the scan response message returned by the second transceiver unit 1021 to the first network element 101 carries a scan parameter, and the first network element 101 learns the start and end time of the scan by using the scan response message. The scan parameter may include a scan start time (when to start scanning), a scan duration (how many times each scan), and a scan interval. The interval (the interval between the next scan and the current scan), the number of scans, and the scan target (such as the base station). Since the scan parameters include the scan interval, the number of scans, and the like, it is not necessary to send a message every time the scan is performed. After the message is sent in the first scan, the subsequent first network element is sent.

101 It is only necessary to initiate scanning within a specified time according to the scanning interval, the number of scanning times, and the like. In the embodiment of the present invention, the scan parameter includes at least a start and a duration of the scan. The second transceiver unit 1021 is further configured to receive the data block sent by the first network element 101 after the scanning ends, and send an ARQ ACK (ARQ response) message and an ARQ NACK (ARQ no response) to the first network element 101 after receiving the data. The message that the ARQ ACK message is used to inform the first network element 101 and which data blocks are received by the second network element 102, the first network element 101 removes the data blocks that have been received by the second network element 102 from the sliding window. , where the data block can have an identifier. The ARQ NACK message is used to notify the first network element 101, and the second network element 102 does not receive any data blocks, and the first network element 101 needs to resend the data blocks not received by the second network element 102 to the second network element 102. Network element 102.

The second scanning unit 1022 is configured to respond to the scan request sent by the first network element 101. The second scanning unit 1022 is configured to generate a response message after the second transceiver unit 1021 receives the scan request sent by the first network element 101, and send the response message to the first network element 101 by the second transceiver unit 1021. Alternatively, the response message may carry a scan parameter, where the scan parameter includes the start and end time of the scan, and the second transceiver unit 1021 sends the response message to the first network element 101. If the scan information included in the scan parameter carried in the response message generated by the second scan unit 1022 is a periodic scan, the first network element 101 needs to scan according to the scan period and frequency included in the scan parameter.

The implementation of the timer is described below through an implementation flow.

Referring to FIG. 3, the main method of data processing control in the embodiment of the present invention is as follows: Step 301: Acquire start and end time of frequency point scanning.

The obtaining mode may be that the second network element 102 sends a message to the first network element 101 at the time of starting and ending the scanning, so that the processing unit 1013 in the first network element 101 turns off and turns on the first timer unit 1011. . Alternatively, the second network element 102 may be in the first network element 101. When the response message is returned, the response message carries a scan parameter, and the scan parameter includes the start and end time of the scan, and the processing unit 1013 turns off and starts the first timer unit 1011 according to the start and end time.

Step 302: When the scan start time is reached, the retransmission timer, the life cycle timer, and the window synchronization timer are suspended, and the processing of the data in the sliding window is suspended.

Step 303: When the scan end time is reached, the retransmission timer, the life cycle timer, and the window synchronization timer are restored, and the processing of the data in the sliding window is resumed.

The above is the main method flow of data processing control. The following describes the method of data processing control in detail through several specific embodiments.

Referring to FIG. 4, when the first network element 101 is a scan initiator, the detailed method of data processing control in the embodiment of the present invention is as follows:

Step 401: The first network element 101 sends a scan request to the second network element 102.

Step 402: The second network element 102 returns a scan response message to the first network element 101.

Step 403: The first network element 101 starts timers A and B. Specifically, after receiving the scan response message, the first network element 101 starts the timers A and B, and sets the time of the timer A to: from the current time, to the start of the scan, and the time of the timer B. Set to: from the current time, until the end of the scan. Alternatively, timer A can be turned on at any point before the start of the scan, and the timer A time can be set to: from the current time, to the time point when the scan starts, the timing is turned on at any point before the end of the scan. Set B, and set the time of timer B to: from the current time, to the point in time when the scan ends.

Step 404: Timer A times out. When timer A times out, the first network element 101 starts scanning.

Step 405: The first network element 101 turns off the first timer unit 1011. Specifically, the scanning starts, and the processing unit 1013 turns off the first timer unit 1011.

Step 406: The first network element 101 saves the remaining timers in the first timer unit 1011. Time. It can be saved to the storage unit 1015 by the processing unit 1013. It is also possible to save the remaining time of each timer in the first timer unit 1011 before the first timer unit 1011 is turned off.

Step 407: Timer B times out. When the timer B times out, the first network element 101 ends the scanning.

Step 408: The first network element 101 restores the first timer unit 1011 according to the remaining time of each timer in the saved first timer unit 1011.

Referring to FIG. 5, in the embodiment of the present invention, the first network element 101 may be specifically a terminal, and the second network element 102 may be specifically a base station. When the timers A and B are not required to be opened, and the first network element 101 is the scan initiator, the detailed method flow of the data processing control is as follows:

Step 501: The first network element 101 sends a scan request to the second network element 102.

Step 502: The second network element 102 returns a scan response message to the first network element 101.

Step 503: When the first network element 101 receives the response message, it starts scanning. The first network element 101 may send a scan start message to the second network element 102 when starting the scan to notify the second network element 102 that the scan begins.

Step 504: The first network element 101 saves the remaining time of each timer in the first timer unit 1011. Specifically, it can be saved to the storage unit 1015 by the processing unit 1013.

Step 505: The first network element 101 turns off the first timer unit 1011. The step 503, the step 504, and the step 505 are performed simultaneously, or the step 503 and the step 505 are performed simultaneously, and the step 504 can be performed after the step 503 and the step 505 are performed.

Step 506: The first network element 101 ends the scanning. The first network element 101 may send a scan end message to the second network element 102 when the scan ends, to notify the second network element 102 that the scan ends.

Step 507: The first network element 101 restores the first timer unit 1011 according to the remaining time of each timer in the saved first timer unit 1011.

Referring to FIG. 6, when the second network element 102 is a scan initiator, the data processing control is performed in the embodiment of the present invention. The detailed method flow is as follows:

Step 601: The second network element 102 sends a scan request to the first network element 101. Or, the scan request carries the scan parameter, and the first network element 101 can learn the start and end time of the scan by using the scan parameter, and the first network element 101 starts the timer A and the timer B when receiving the scan request. , and set the timer A time to: From the current time, to the start of the scan, set the timer B time to: from the current time, until the end of the scan. Alternatively, timer A can be turned on at any point before the start of the scan, and the timer A time can be set to: from the current time, to the time point when the scan starts, the timing is turned on at any point before the end of the scan. Set B, and set the timer B time to: The current time starts, until the time when the scan ends.

Step 602: The first network element 101 returns a scan response message to the second network element 102.

Step 603: The second network element 102 sends a scan start message to the first network element 101. The second network element 102 begins scanning. If the scan request carries the scan parameters in step 601, this step times out for timer A.

Step 604: The first network element 101 saves the remaining time of each timer in the first timer unit 1011. It is saved by the processing unit 1013 and can be saved in the storage unit 1015. Alternatively, after the start of the scan, that is, after the first timer unit 1011 is turned off, the processing module 1013 saves the remaining time of each timer in the first timer unit 1011 that is not cleared, in other words: this step also It can be performed after step 605.

Step 605: The first network element 101 turns off the first timer unit 1011. The processing unit 1013 turns off the first timer unit 1011.

Step 606: The second network element 102 sends a scan end message to the first network element 101. The second network element 102 ends the scanning. If the scan request carries the scan parameter in step 601, this step times out for timer B.

Step 607: The first network element 101 is configured according to the saved timers in the first timer unit 1011. The remaining time, the first timer unit 1011 is restored. The processing unit 1013 restores the first timer unit 1011 according to the remaining time of each timer in the first timer unit 1011 stored in the storage unit 1015.

Wherein, if the scan information included in the scan parameter is a periodic scan, the second network element 102 needs to scan according to the scan period and frequency included in the scan parameter. That is, after the above steps are performed, the execution is started from step 603 according to the scan parameters, and the loop is executed until the end of the scan.

In the embodiment of the present invention, the start and end time of the frequency point scanning is acquired; when the scan start time is reached, the retransmission timer, the life cycle timer, and the window synchronization timer are turned off, and the processing of the data in the sliding window is suspended; When the retransmission timer, the lifecycle timer, and the window synchronization timer are restored, the processing of the data in the sliding window is resumed. Thereby avoiding unnecessary data retransmission and reducing data block loss, and avoiding unnecessary ARQ reset process and MAC reset caused by failure of the ARQ Reset process, realizing reliable data transmission and improving ARQ retransmission efficiency And retransmission stability. When the scan is initiated by the first network element 101, the scan start message and the scan end message may be sent by the second network element 102 to the first network element 101 at the start and end of the scan, and the first network element 101 is closed according to the scan start message. The first timer unit 1011, and the first timer unit 1011 is turned on according to the scan end message; or the second network element 102 carries the scan parameter in the scan response message returned to the first network element 101, and the first network element 101 passes The scan response message is informed of the start and end time of the scan, and the first timer unit 1011 is turned off and on according to the start and end time of the scan; or the first network element 101 itself determines the start time of the scan, and the implementation method is flexible. Can be chosen at will. When the second network element 102 initiates the scanning, the second network element 102 may send a scan start message and a scan end message to the first network element 101 at the time of starting and ending the scan, and the first network element 101 is closed according to the scan start message. The first timer unit 1011, and the first timer unit 1011 is turned on according to the scan end message; or the second network element 102 carries the scan parameter in the scan message sent to the first network element 101, and the first network element 101 passes the The scan message knows the start and end time of the scan, and the start of the scan The first timer unit 1011 is turned off and on at the end time. The scan initiator is independent of the data sender and the data receiver. Both the data sender and the data receiver can be the scan initiator. If the scan information included in the scan parameter is a periodic scan, the first network element 101 needs to scan according to the scan period and frequency included in the scan parameter until the end of the scan. In this way, periodic scanning is realized, and the degradation of the link transmission quality does not occur during the scanning process.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart and/or block diagrams, and combinations of flow and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. Instructions are provided for implementation The steps of a function specified in a block or blocks of a flow or a flow and/or a block diagram of a flow chart. The spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and the modifications of the invention

Claims

Claim

A data processing control method, the method comprising:

Obtain the start time and end time of the frequency point scan;

2. The method according to claim 1, wherein the acquiring the start time and the end time of the frequency point scan comprises:

Receiving a scan parameter sent by the peer network element, and obtaining, by using the scan parameter, a start time and an end time of the scan; or

Determine the start time and end time of the scan by itself; or,

The time at which the scan start message sent by the peer network element is received is determined as the start time of the scan, and the time at which the scan end message sent by the peer network element is received is determined as the end time of the scan.

3. The method according to claim 1, wherein the method further comprises: saving a retransmission time retransmission timer, a lifecycle timer, and a remaining time of the window synchronization timer.

The method according to claim 1, 2 or 3, wherein, when the start time is reached, the retransmission timer, the lifecycle timer, and the window synchronization timer are suspended, and the sliding window is suspended. The processing of the data includes: when receiving the scan start message sent by the peer network element, starting the frequency point scan, suspending the retransmission timer, the life cycle timer, and the window synchronization timer, and suspending processing of the data in the sliding window; or ,

When the scan response message is received, the timer A is started. When the timer A times out, the frequency point scan is started, the retransmission timer, the life cycle timer, and the window synchronization timer are suspended, and the processing of the data in the sliding window is suspended.

5. The method according to claim 3, wherein said arriving at said end time The retransmission timer, the lifecycle timer, and the window synchronization timer are restored, and the processing of the data in the sliding window is resumed, including: receiving a scan end message sent by the peer network element, according to the saved retransmission timer, life The period timer and the remaining time of the window synchronization timer, recover the retransmission timer, the lifecycle timer, and the window synchronization timer, and restore the processing of the data in the sliding window; or

When the scan response message is received, the timer B is started. When the timer B times out, the retransmission timer, the life cycle timer, and the remaining time of the saved retransmission timer, the lifetime timer, and the window synchronization timer are restored. The window synchronizes the timer and resumes processing of the data in the sliding window.

6. A data processing control method, the method comprising:

Determining the start time and end time of the frequency point scan;

Sending a scan parameter indicating the start time and the end time of the scan directly or indirectly to the peer network element, or sending a scan start message when the start time is reached, and sending a scan end message when the end time is reached, indicating the peer network When the element reaches the scan start time, it suspends the retransmission timer, the life cycle timer, and the window synchronization timer, and suspends the processing of the data in the sliding window. When the scan end time is reached, the retransmission timer is resumed, and the life cycle timing is resumed. And the window synchronization timer, and restore the processing of the data in the sliding window.

A data processing control device, comprising: a processing unit, a first timer unit, and a first transceiver unit;

The device according to claim 7, wherein the first transceiver unit is further configured to receive a scan parameter sent by the peer network element;

The processing unit is further configured to: learn, by using the scan parameter, a start time and an end time of the scan; or

The device further includes: a first scanning unit, configured to determine the start time and the end time of the scan by itself; or

The processing unit is further configured to: receive, by the transceiver unit, a scan start message sent by the peer end network element, determine a start time of the scan, and receive, by the transceiver unit, a scan end message sent by the peer end network element The time is determined as the end time of the scan.

9. The apparatus according to claim 7, wherein the apparatus further comprises: a storage unit configured to save a retransmission timer, a lifecycle timer, and a remaining time of the window synchronization timer.

The device according to claim 7, 8 or 9, wherein the processing unit is further configured to: start a frequency point when the first transceiver unit receives a scan start message sent by the peer network element Scan, pause the retransmission timer, lifecycle timer, and window synchronization timer, and suspend processing of data in the sliding window; or,

The device further includes: a second timer unit, the second timer unit further comprising: a timer A and a timer B;

The processing unit is further configured to: when the first transceiver unit receives the scan response message, start the timer A, start the frequency point scan when the timer A times out, pause the retransmission timer, and the life cycle The timer and the window synchronization timer, and suspend processing of the data in the sliding window.

The device according to claim 7, 8 or 9, wherein the processing unit is further configured to: when the first transceiver unit receives a scan end message sent by the peer network element, Recovering the retransmission timer, the lifecycle timer, and the window synchronization timer according to the saved retransmission timer, the lifecycle timer, and the remaining time of the window synchronization timer, and restoring the processing of the data in the sliding window; or

The processing unit is further configured to: when the transceiver unit receives the scan response message sent by the peer network element, start the timer B, and when the timer B times out, according to the saved retransmission timer, the life cycle The timer and the remaining time of the window synchronization timer restore the retransmission timer, the lifecycle timer, and the window synchronization timer, and resume processing of the data in the sliding window.

12. A data processing control device, the device comprising: a second scanning unit and a second transceiver unit;

a second scanning unit, configured to determine a start time and an end time of the frequency point scanning;