WO2013127372A1

WO2013127372A1 - Data packet processing method and device

Info

Publication number: WO2013127372A1
Application number: PCT/CN2013/072136
Authority: WO
Inventors: 杨晓东
Original assignee: 华为技术有限公司
Priority date: 2012-03-02
Filing date: 2013-03-04
Publication date: 2013-09-06
Also published as: CN103298028A; CN103298028B

Abstract

Provided are a data packet processing method and device, wherein the method is divided into a method for obtaining a data packet delay time and a data packet reporting method. The method for obtaining a data packet delay time includes: an access network device receives a data packet sent from user equipment, the data packet carrying a time identifier; and according to the time identifier, a delay time of the data packet at the user equipment is obtained. The data packet reporting method includes: sending a data packet to an access network device, the data packet carrying a time identifier, so that the access network device can obtain a delay time of the data packet at the user equipment according to the time identifier. The device includes an access network device and user equipment.

Description

Packet processing method and device

This application claims the priority of the Chinese Patent Application, filed on March 2, 2012, to the Chinese Patent Application No. 201210054844.5, entitled "Data Packet Processing Method and Apparatus", the entire contents of which are hereby incorporated by reference. Technical field

The present invention relates to communication technologies, and in particular, to a data packet processing method and device.

BACKGROUND OF THE INVENTION In traditional network operation and maintenance, operators need to invest a large amount of manpower and resources to conduct road tests. For example, the tester takes the test terminal and records the signal service quality in the actual network environment. Alternatively, the test vehicle tests various performance parameters of the network in the actual network according to a certain route. However, this traditional operation and maintenance method is generally incapable of targeting indoor networks, and it is difficult to find out for sudden network conditions.

Minimization of Drive Tests (MDT) is a new user equipment (User Equipment, UE for short). This new UE function is mainly to reduce the traditional road test work of the operator in the network establishment and subsequent maintenance stages, and to reduce the problems that the traditional road test cannot solve. The MDT records the network status in the connected state and the idle state (IDLE) by the UE and records the location of the recording time, and at the appropriate time, the network is reached.

Since the delay statistics for different service data packets of the UE is an important means for the operator to understand the Quality of Service (QoS), how to obtain the delay time of the service data packet in the UE buffer (buffer) It has become a problem to be solved in the prior art. SUMMARY OF THE INVENTION In order to obtain a delay time of a service data packet in a buffer of a UE, the present invention provides a data packet processing method and device. The data packet processing method may include the following two methods: An aspect of the present invention provides a method for obtaining a data packet delay time, including: receiving, by a network device, a data packet sent by a user equipment, where the data packet carries a time identifier; and obtaining the data packet according to the time identifier. The delay time at the user device.

Another aspect of the present invention provides a method for reporting a data packet, including: sending a data packet to an access network device, where the data packet carries a time identifier, so that the access network device identifies the time according to the time identifier. The delay time of the data packet at the user equipment is obtained.

A further aspect of the present invention provides an access network device, including: a receiving module, configured to receive a data packet sent by a user equipment, where the data packet carries a time identifier; and an obtaining module, configured to use, according to the time identifier, The delay time of the data packet at the user equipment is obtained.

A further aspect of the present invention provides a user equipment, including: a sending module, configured to send a data packet to an access network device, where the data packet carries a time identifier, so that the access network device according to the time Identification, obtaining the delay time of the data packet at the user equipment.

The technical effect of the present invention is: when the UE reports a data packet to the access network device, the time identifier is carried in the data packet, so that the access network device obtains the data packet in the user equipment according to the time identifier carried in the data packet. The delay time, in turn, allows the access network device to better understand the QoS and other performance of the service represented by the data packet. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. The drawings are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a schematic flowchart of a method for obtaining a data packet delay time according to Embodiment 1 of the present invention; FIG. 2a is a schematic diagram of a composition of a PDU according to Embodiment 1 of the present invention;

2b is a schematic diagram of another composition of a PDU according to Embodiment 1 of the present invention;

3 is a schematic flowchart of a method for obtaining a data packet delay time according to Embodiment 2 of the present invention; FIG. 4 is a schematic flowchart of a method for obtaining a data packet delay time according to Embodiment 3 of the present invention; FIG. 6 is a schematic flowchart of a method for reporting a data packet according to Embodiment 5 of the present invention; FIG. 7 is a schematic flowchart of a method for reporting a data packet according to Embodiment 6 of the present invention; 8 is a schematic structural diagram of a network device according to Embodiment 7 of the present invention;

9 is a schematic structural diagram of a network device according to Embodiment 8 of the present invention;

FIG. 10 is a schematic structural diagram of a user equipment according to Embodiment 9 of the present invention;

FIG. 11 is a schematic structural diagram of a user equipment according to Embodiment 10 of the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. The embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

FIG. 1 is a schematic flowchart of a method for obtaining a data packet delay time according to Embodiment 1 of the present invention. As shown in FIG. 1, the method includes the following content.

101. The access network device receives a data packet sent by the user equipment, where the data packet carries a time identifier.

It should be noted here that, in order for the access network device to obtain the delay time of the data packet in the user equipment (which may include the delay time of the data packet in the user equipment cache and the time from the air interface to the network), so that the operator can A more accurate understanding of QoS, in the embodiment of the present invention, by extending the data packet, the data packet carries the time identifier, so that the access network device can obtain the delay of the data packet in the user equipment according to the time identifier carried in the data packet. time. An access network device can be understood as a device for accessing a network, such as a base station or an access point (Access Point, AP). Specifically, the protocol data unit (referred to as: PDU) of the Packet Data Convergence Protocol (PDCP) of the user equipment may be extended. The schematic diagram of the composition of the PDU shown in Figure 2. Among them, one byte Oct consists of 8 bits. As shown in FIG. 2, the bit F can be used to indicate whether the PDU of the PDCP carries a time identifier. The present invention is described by taking the time-staffed identifier as an example, and is not intended to limit other implementations of the present invention.

The time stamp can be in the following forms, which are described below.

1. The time identifier may be a first timestamp, where the first timestamp indicates that the data packet arrives at the user setting. The time of the cache. In this case, the time is identified as a point in time. The extension of the PDU as shown in FIG. 2a may be: When the bit F is set to 1, the system frame number (SFN) and the wireless subframe identifier may be used as timestamps to identify the PDU reaching the user equipment cache. time. For SFN, in Long Term Evolution (LTE) systems, SFN is usually used to identify radio frames. Every 10ms - a radio frame, you can use 10 bits to identify. Each radio frame consists of 10 radio subframes, each subframe lms. These 10 wireless subframes can be identified by using 4 bits. That is to say, the radio subframe identifier is incremented by 1 every 1 ms, and is incremented by 1 every 10 ms. When the SFN exceeds the maximum value, such as the value of SFN is 0~1023, then after the SFN reaches 1023, it needs to be flipped. Therefore, the extended PDU may further include a system frame number flip identifier, which may occupy 2 bits. When the SFN exceeds the maximum value, the flip flag is incremented by 1. For example, in the data packet sent to the access network device, the SFN is 1023, the wireless subframe identifier is 5, and the flip flag is not set. That is, the time at which the data packet arrives at the user equipment buffer is the 5th subframe time of the 1023th SFN. The user equipment may record the SFN and the subframe number when the data packet arrives in the buffer, and store it in the PDU. It should also be noted that the above description only defines the radio frame and the radio subframe in the LTE system, and in other systems, such as Wideband Code Division Multiple Access (WCDMA) or time division. In the Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system, the time unit of the radio frame and the radio subframe is not necessarily 10 ms/lms. Therefore, the above-mentioned radio frame and radio sub-frame The time represented by the frame may be appropriately changed depending on the system, and the above specific numerical values are not intended to limit the scope of the present invention.

2. The time identifier can also be the delay time of the data packet in the user equipment cache. In this case, the time is identified as a time period. The extension of the PDU as shown in FIG. 2b may also be: When the bit F is set to 1, the delay time of the PDU in the user equipment buffer may be identified by the time period T.

102. The access network device obtains a delay time of the data packet in the user equipment according to the time identifier. When the time is identified as a time point or a time period, the processing of 102 is different.

If the time identifier is the first timestamp indicating the time when the data packet arrives at the user equipment cache, the method may include: acquiring a second timestamp, where the second timestamp identifies a system time when the access network device receives the data packet, Obtaining a delay time of the data packet at the user equipment according to the first timestamp and the second timestamp. As described in 101, the packet arrives at the user device cache, Receiving the data packet to the access network device may be referred to as a first time period. The first time period may be composed of two parts of time, and part of the time is the delay time of the data packet in the user equipment cache, which is not available to the access network device itself, and the part is the air interface of the data packet from the user equipment. The time of the transmission to the access network device. The access network device is known at this time. Therefore, by calculating the time difference between the system time when the access network device receives the data packet and the time when the data packet arrives at the user equipment cache, You can get the delay time of the packet on the user equipment. In a further embodiment, the time at which the data packet is transmitted from the air interface to the access network device is removed from the delay time of the obtained data packet in the user equipment, and the delay time of the data packet in the user equipment buffer can be obtained.

For example, the LTE subframe number is 10 from 0 to 9. The SFN number is 1024 from 0 to 1023. In the data packet sent to the access network device, the SFN is 1023, the wireless subframe identifier is 5, and the flip flag is not set. That is, the time at which the data packet arrives at the user equipment buffer is the sixth subframe time of the 1024th SFN. When the access network device receives the data packet, the system timestamp is SFN 5, the wireless subframe identifier is 5, and the flip identifier is incremented by 1, that is, the time when the access network device receives the data packet is the sixth SFN. At the 6th subframe time, in this case, the delay time of the data packet at the user equipment is (1024+6-1024) *10ms+ (6-6) =60ms. The time when the data packet is sent from the air interface to the access network device is: 8ms. In this way, it can be known that the time from the arrival of the data packet to the user equipment cache to the access network device is 60 ms, and the delay time of the data packet in the user equipment cache is 60 ms - 8 ms = 52 ms.

Among them, as described in 101, the delay time of the data packet in the user equipment consists of two parts, one is the delay time of the data packet in the user equipment cache, and the other part is the data packet sent from the air interface to the access network device. time. If the time identifier is the delay time of the data packet in the user equipment cache, that is, a time period, the delay time of the data packet in the user equipment cache may be added to the time when the data packet is sent from the air interface to the access network device. Thereby obtaining the delay time of the data packet in the user equipment. Of course, because the time identifier is the delay time of the data packet in the user equipment cache, the access network device can directly obtain the delay time of the data packet in the user equipment cache according to the time identifier.

The embodiment of the present invention provides a method for obtaining a data packet delay time. When the user equipment reports a data packet to the access network device, the method carries a time identifier in the data packet to facilitate the access network device according to the data packet. The time identifier carried in the packet obtains the delay of the packet in the user equipment The time, in turn, enables the access network device to better understand the performance of the QoS and the like of the service represented by the data packet.

FIG. 3 is a schematic flowchart of a method for obtaining a data packet delay time according to Embodiment 2 of the present invention. On the basis of the foregoing implementation manner, the user equipment needs to carry a time stamp in a data packet and send the data packet to the access network device. It can be conditional, such as network side configuration. Based on the foregoing implementation manner, before 101, the method may further include:

100. The access network device sends a trigger signal to the user equipment, so that the user equipment sends the data packet described in 101 according to the trigger signal.

It should be noted that the trigger signal may be Radio Resource Control (RRC) signaling or Media Access Control (MAC) signaling, and may of course be other The common signaling of the extension, the embodiment of the present invention takes the above two types of signaling as an example, and is not intended to limit the scope of protection of the present invention. The trigger signal may carry a statistical period, a statistical start, or a number of statistical data packets.

For example, when the trigger signal carries a statistical period, the user equipment can start a timer timer after receiving the trigger signal, and make it initially 0s, and start timing according to the value of the statistical period, such as 50s. During the time period when the timer reaches 50s from 0s, if there is a packet arriving at the buffer of the user equipment, a first timestamp indicating the time when the packet arrives at the user equipment cache is added to the data packet. If the time period exceeds 50s, the user equipment stops increasing the first time stamp. The timer timer can also be enabled. When the user equipment receives the first packet, timer=0s. There is no mandatory limit here.

For example, when the trigger signal carries the number of statistical data packets, the user equipment starts a counter after receiving the trigger signal, and makes it initially 0, and starts according to the number of statistical data packets, such as 100. count. Each time the user equipment arrives at the buffer, the counter is incremented by one, and a first timestamp indicating the time of arrival at the user equipment cache is added to the data packet until the counter reaches 100, and the user equipment stops increasing the first timestamp.

For another example, when the trigger signal carries a statistical start indication, the user equipment starts to add a first timestamp indicating the time of arrival to the user equipment cache for each data packet buffered to the user equipment after receiving the trigger signal. Then, in this case, a schematic flowchart of a method for obtaining a data packet delay time according to Embodiment 3 of the present invention, as shown in FIG. 4, may further include: 103. Send an end signal to the user equipment, so that the user equipment stops sending the data packet according to the end signal.

When the user equipment receives the end signal, it stops adding the first timestamp to the data packet.

The above-mentioned various ending modes stop the reporting of such time-stamped data packets when network operation and maintenance are not required, thereby saving network resources and user equipment power consumption.

FIG. 5 is a schematic flowchart of a method for reporting a data packet according to Embodiment 4 of the present invention, where the method for obtaining the data packet delay time is described in detail from the user equipment side. As shown in Figure 5, the method includes the following.

501. The user equipment sends a data packet to the access network device, where the data packet carries a time identifier, so that the access network device obtains the delay time of the data packet in the user equipment according to the time identifier.

It should be noted that 501 corresponds to 101. For a detailed description, refer to 101, which is not described in detail here.

The time stamps can be in the following forms, which are described below.

1. The time identifier may be a timestamp indicating the time when the data packet arrives at the user equipment cache. In this case, the time is identified as a point in time. The extension of the PDU as shown in FIG. 2a may be: When the bit F is set to 1, the system frame number (SFN) and the wireless subframe identifier may be used as timestamps to identify the PDU reaching the user equipment cache. time. For SFN, in Long Term Evolution (LTE) systems, SFN is usually used to identify radio frames. Every 10ms - a radio frame, you can use 10 bits to identify. Each radio frame consists of 10 radio subframes, each subframe lms. These 10 wireless subframes can be identified by using 4 bits. That is to say, each lms wireless subframe identifier is incremented by one, and every 10 ms SFN is incremented by one. When the SFN exceeds the maximum value, such as the value of SFN is 0 1023, then after the SFN reaches 1023, it needs to be flipped. Therefore, the extended PDU may further include a system frame number flip identifier, which may occupy 2 bits. When the SFN exceeds the maximum value, the flip flag is incremented by 1. For example, in the data packet sent to the access network device, the SFN is 1023, the wireless subframe identifier is 5, and the flip flag is not set. That is, the time at which the data packet arrives at the user equipment buffer is the 5th subframe time of the 1023th SFN. The user equipment may record the SFN and the subframe number when the data packet arrives in the buffer, and store it in the PDU. It should also be noted that the above description only defines the radio frame and the radio subframe in the LTE system, and in other systems, such as Wideband Code Division Multiple Access (WCDMA) or time division. Synchronous Code Division Multiple Access (Time Division- Synchronous In the Code Division Multiple Access (referred to as TD-SCDMA) system, the time unit of the radio frame and the radio subframe is not necessarily 10 ms/ms. Therefore, the time represented by the above radio frame and the radio subframe is different according to the system. There may be suitable variations, and the above specific values are not intended to limit the scope of the invention.

2. As described in 101, the delay time of the data packet in the user equipment consists of two parts, one is the delay time of the data packet in the user equipment cache, and the other part is the time when the data packet is sent from the air interface to the access network device. . The time stamp can also be the delay time for the packet in the user device cache. In this case, the time is identified as a time period. The extension of the PDU as shown in Figure 2b can also be: When the bit F is set to 1, the delay time of the PDU in the user equipment buffer can be identified by the time period T.

FIG. 6 is a schematic flowchart of a method for reporting a data packet according to Embodiment 5 of the present invention. As shown in FIG. 6, based on the method shown in FIG. 5, before 501, the method may further include:

500. Receive a trigger signal sent by the access network device.

Correspondingly, 501 can be 50Γ: send a data packet to the access network device according to the trigger signal. The trigger signal may be, but is not limited to, RRC signaling or MAC signaling carrying a statistical period; or RRC signaling or MAC signaling carrying statistics start; or RRC signaling or MAC signaling carrying the number of statistical data packets. make.

On the basis of 500, FIG. 7 is a schematic flowchart of a method for reporting a data packet according to Embodiment 6 of the present invention. As shown in FIG. 7, after 501, the method may further include:

502. If the trigger signal is RRC signaling or MAC signaling that carries statistics start, receive an end signal sent by the access network device, stop sending the data packet according to the stop signal; if the trigger signal is an RRC letter carrying a statistical period Or MAC signaling, when the statistical period ends, the data packet is stopped; if the trigger signal is RRC signaling or MAC signaling carrying the number of statistical data packets, when the number of sent data packets reaches the When the number of packets is counted, the packet is stopped.

It will be understood by those skilled in the art that all or part of the steps of implementing the above method embodiments may be performed by hardware related to the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program includes the steps of the foregoing method embodiments. The foregoing storage medium includes: Read-Only Memory (ROM), Random Access Memory (RAM). A variety of media that can store program code, such as a disk or a disc. FIG. 8 is a schematic structural diagram of a network device according to Embodiment 7 of the present invention. As shown in FIG. 8, the description of the foregoing method embodiments is not described herein. The network device can include: a receiving module 801 and an obtaining module 802. The receiving module 801 is configured to receive a data packet sent by the user equipment, where the data packet carries a time identifier. The obtaining module 802 is configured to obtain, according to the time identifier, a delay time of the data packet at the user equipment.

The time stamp can be in the following forms, which are described below.

1. The time identifier may be a first timestamp, where the first timestamp indicates the time when the data packet arrives at the user equipment cache. In this case, the time is identified as a point in time. The extension of the PDU as shown in FIG. 2a may be: When the bit F is set to 1, the system frame number (SFN) and the wireless subframe identifier may be used as timestamps to identify the PDU reaching the user equipment cache. time. For SFN, in Long Term Evolution (LTE) systems, SFN is usually used to identify radio frames. Every 10ms - a radio frame, you can use 10 bits to identify. Each radio frame consists of 10 radio subframes, each subframe lms. These 10 wireless subframes can be identified by using 4 bits. That is to say, the radio subframe identifier is incremented by 1 every 1 ms, and is incremented by 1 every 10 ms. When the SFN exceeds the maximum value, such as the value of SFN is 0~1023, then after the SFN reaches 1023, it needs to be flipped. Therefore, the extended PDU may further include a system frame number flip identifier, and the flip identifier may occupy 2 ratios. Special position, when the SFN exceeds the maximum value, the flip flag is incremented by 1. For example, in the data packet sent to the access network device, the SFN is 1023, the wireless subframe identifier is 5, and the flip flag is not set. That is, the time at which the data packet arrives at the user equipment buffer is the 5th subframe time of the 1023th SFN. The user equipment may record the SFN and the subframe number when the data packet arrives in the buffer, and store it in the PDU. It should also be noted that the above description only defines the radio frame and the radio subframe in the LTE system, and in other systems, such as Wideband Code Division Multiple Access (WCDMA) or time division. In the Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system, the time unit of the radio frame and the radio subframe is not necessarily 10 ms/lms. Therefore, the above-mentioned radio frame and radio sub-frame The time represented by the frame may be appropriately changed depending on the system, and the above specific numerical values are not intended to limit the scope of the present invention.

In an embodiment, the time identifier is a first timestamp, and the first timestamp indicates a time when the data packet arrives at the user equipment cache. The obtaining module 802 is configured to: acquire a second timestamp, where the second timestamp Indicates the system time at which the access network device receives the data packet. The delay time of the data packet at the user equipment is obtained according to the first time stamp and the second time stamp.

Further, the obtaining module 802 may include: a first calculating unit, configured to calculate a system time when the access network device receives the data packet, and a time when the data packet arrives at the user equipment cache The time difference between the timeouts is obtained by the delay time of the packet at the user equipment.

Further, the obtaining module 802 may further include: a second calculating unit, where the time for transmitting the data packet from the air interface to the access network device is removed from the delay time of the data packet in the user equipment, and the data packet is obtained. The delay time in the user device cache.

In another implementation manner, the delay time of the data packet in the user equipment includes a delay time of the data packet in the user equipment cache, and a time when the data packet is sent from the air interface to the access network device, where the time identifier is the data. The delay time of the packet in the user equipment cache; the obtaining module 802 is configured to: add a delay time of the data packet in the user equipment cache to a time when the data packet is sent from the air interface to the access network device, to obtain the data packet The delay time at the user device.

On the basis of the above-mentioned embodiments, as shown in FIG. 9, the network device provided in Embodiment 8 of the present invention, the network device provided by the embodiment of the present invention may further include: a sending module 803, configured to send to the user equipment The trigger signal is sent to enable the user equipment to send the data packet according to the trigger signal.

The sending module 803 includes: a first sending unit, configured to send, to the user equipment, RRC signaling or MAC signaling that carries a statistical period; or, a second sending unit, configured to send, to the user equipment, an RRC carrying a statistical start Signaling or MAC signaling; or, the third sending unit is configured to send, to the user equipment, RRC signaling or MAC signaling that carries the number of statistical data packets.

Further, the sending module 803 may further include: a fourth sending unit, configured to send an end signal to the user equipment, to enable the user equipment to stop sending the data packet according to the end signal.

FIG. 10 is a schematic structural diagram of a user equipment according to Embodiment 9 of the present invention. As shown in FIG. 10, the user equipment is one of the specific execution entities of the foregoing method embodiment, and the method flow may refer to the description of the foregoing method embodiment. Do not make a statement. The user equipment includes: a sending module 1001. The sending module 1001 is configured to send a data packet to the access network device, where the data packet carries a time identifier, so that the access network device obtains a delay time of the data packet in the user equipment according to the time identifier.

FIG. 11 is a schematic structural diagram of a user equipment according to Embodiment 10 of the present invention. As shown in FIG. 11, the user equipment may further include: a receiving module 1002, configured to receive a trigger signal sent by the access network device; The sending module 1001 is configured to send a data packet to the access network device according to the trigger signal.

For example, when the trigger signal carries a statistical period, the user equipment can start a timer timer after receiving the trigger signal, and make it initially 0s, and start timing according to the value of the statistical period, such as 50s. In the period when the timer reaches 50s from 0s, if there is a packet Upon reaching the cache of the user equipment, a first timestamp representing the time at which the data packet arrived at the user equipment cache is added to the data packet. If the time period exceeds 50s, the user equipment stops increasing the first timestamp. The timer timer can also be started when the user equipment receives the first packet with timer=0s. There is no mandatory limit here.

For example, when the trigger signal carries the number of statistical data packets, the user equipment starts a counter after receiving the trigger signal, and makes it initially 0, and starts according to the number of statistical data packets, such as 100. count. Each time the user equipment arrives at the buffer, the counter is incremented by 1, and a first timestamp representing the time of arrival at the user equipment cache is added to the data packet until the counter reaches 100, and the user equipment stops increasing the first timestamp.

For another example, when the trigger signal carries a statistical start indication, the user equipment starts to add a first timestamp representing the time of reaching the user equipment cache to each data packet buffered to the user equipment after receiving the trigger signal.

On the basis of the foregoing embodiment, the sending module 1001 is further configured to: if the trigger signal is RRC signaling or MAC signaling that carries statistics start, receive an end signal sent by the access network device, and stop sending according to the stop signal. If the trigger signal is RRC signaling or MAC signaling carrying a statistical period, when the statistical period ends, the data packet is stopped; if the trigger signal is RRC signaling carrying the number of statistical data packets Or MAC signaling, when the number of sent data packets reaches the number of statistics packets, the data packet is stopped.

It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

Rights request

A method for obtaining a packet delay time, comprising:

The access network device receives the data packet sent by the user equipment, where the data packet carries a time identifier; and according to the time identifier, obtains a delay time of the data packet in the user equipment.

The method according to claim 1, wherein the time identifier is a first timestamp, and the first timestamp indicates a time when the data packet arrives at the user equipment cache; The time identifier, obtaining the delay time of the data packet at the user equipment, includes: acquiring a second timestamp, where the second timestamp indicates a system time that the access network device receives the data packet;

Obtaining a delay time of the data packet at the user equipment according to the first timestamp and the second timestamp.

The method according to claim 2, wherein the obtaining the delay time of the data packet in the user equipment according to the first time stamp and the second time stamp comprises:

Calculating a time difference between a system time at which the access network device receives the data packet and a time when the data packet arrives at the user equipment cache, and obtaining a delay time of the data packet at the user equipment.

The method according to claim 3, wherein the method further comprises: sending the data packet from the air interface to the access network device from a delay time of the data packet in the user equipment Removing, obtaining a delay time of the data packet in the user equipment cache.

The method according to any one of claims 2 to 4, wherein the first timestamp and the second timestamp respectively comprise: a system frame number SFN and a wireless subframe identifier.

The method according to claim 5, wherein the first timestamp and the second timestamp further comprise: an SFN flipping identifier; when the SFN reaches a maximum value, the SFN flipping flag is added 1.

The method according to claim 1, wherein the delay time of the data packet in the user equipment comprises: a delay time of the data packet in the user equipment cache, and the data packet is sent from an air interface to an air interface. The time of the access network device; the time identifier is a delay time of the data packet in the user equipment cache;

The obtaining, according to the time identifier, the delay time of the data packet in the user equipment includes: The delay time of the data packet in the user equipment cache is added to the time when the data packet is sent from the air interface to the access network device, and the delay time of the data packet at the user equipment is obtained.

The method according to any one of claims 1 to 7, wherein, before the access network device receives the data packet sent by the user equipment, the method further includes:

Sending a trigger signal to the user equipment, so that the user equipment sends the data packet according to the trigger signal.

The method according to claim 8, wherein the sending the trigger signal to the user equipment comprises:

Transmitting, to the user equipment, radio resource control RRC signaling or media access control MAC signaling carrying a statistical period; or

Sending RRC signaling or MAC signaling carrying the statistics start to the user equipment; or sending RRC signaling or MAC signaling carrying the number of statistical data packets to the user equipment.

The method according to claim 9, wherein, if the RRC signaling or MAC signaling carrying the statistics start is sent to the user equipment, the method further includes: sending the end to the user equipment And causing the user equipment to stop transmitting the data packet according to the end signal.

11. A method for reporting a data packet, comprising:

Sending a data packet to the access network device, where the data packet carries a time identifier, so that the access network device obtains a delay time of the data packet in the user equipment according to the time identifier.

The method according to claim 11, wherein the time identifier is a timestamp indicating a time when the data packet arrives at the buffer of the user equipment, and the time stamp includes: a system frame number SFN and a wireless Subframe ID.

The method according to claim 12, wherein the timestamp further comprises: an SFN flip flag; and when the SFN reaches a maximum value, the SFN flip flag is incremented by one.

The method according to claim 11, wherein the delay time of the data packet at the user equipment includes a delay time of the data packet in the user equipment cache, and the data packet is sent from the air interface to the The time of the access network device; the time identifier is a delay time of the data packet in the user equipment cache.

The method according to any one of claims 11 to 14, wherein before the sending the data packet to the access network device, the method further includes: Receiving a trigger signal sent by the access network device;

The sending the data packet to the access network device includes: sending a data packet to the access network device according to the trigger signal.

The method according to claim 15, wherein the trigger signal is: radio resource control RRC signaling or media access control MAC signaling carrying a statistical period; or

Carrying RRC signaling or MAC signaling starting with statistics; or,

RRC signaling or MAC signaling carrying the number of statistical data packets.

The method according to claim 16, wherein, after the sending the data packet to the access network device according to the trigger signal, the method further includes:

If the trigger signal is the RRC signaling or the MAC signaling that carries the statistics start, the end signal sent by the access network device is received, and the data packet is stopped according to the stop signal; if the trigger signal is carrying statistics Periodic RRC signaling or MAC signaling, when the statistical period ends, stopping transmitting the data packet;

If the trigger signal is RRC signaling or MAC signaling carrying the number of statistical data packets, when the number of transmitted data packets reaches the number of the statistical data packets, the data packet is stopped.

18. An access network device, comprising:

a receiving module, configured to receive a data packet sent by the user equipment, where the data packet carries a time identifier; and

And an obtaining module, configured to obtain, according to the time identifier, a delay time of the data packet at the user equipment.

The access network device according to claim 18, wherein the time identifier is a first timestamp, and the first timestamp indicates a time when the data packet arrives at a buffer time of the user equipment;

The obtaining module is specifically configured to: obtain a second timestamp, where the second timestamp indicates a system time that the access network device receives the data packet; according to the first timestamp and the second time Poke, the delay time of obtaining the data packet at the user equipment.

The access network device according to claim 19, wherein the obtaining module comprises:

a first calculating unit, configured to calculate a time difference between a system time when the access network device receives the data packet and a time when the data packet reaches the user equipment cache, to obtain the number According to the delay time of the user equipment.

The access network device according to claim 20, wherein the obtaining module further comprises:

a second calculating unit, configured to remove the time when the data packet is sent from the air interface to the access network device, from the delay time of the data packet in the user equipment, to obtain the data packet in the user equipment cache Delay time.

The access network device according to claim 18, wherein the delay time of the data packet in the user equipment comprises: a delay time of the data packet in the user equipment cache, and the data packet from The time when the air interface is sent to the access network device; the time identifier is a delay time of the data packet in the user equipment cache;

The obtaining module is specifically configured to: add a delay time of the data packet in the user equipment cache, and a time that the data packet is sent from the air interface to the access network device, to obtain the data packet in the The delay time of the user equipment.

The access network device according to any one of claims 18 to 22, wherein the access network device further includes:

And a sending module, configured to send a trigger signal to the user equipment, to enable the user equipment to send the data packet according to the trigger signal.

The access network device according to claim 23, wherein the sending module comprises:

a first sending unit, configured to send, to the user equipment, radio resource control RRC signaling or media access control MAC signaling that carries a statistical period; or

a second sending unit, configured to send, to the user equipment, RRC signaling or MAC signaling that carries a statistical start; or

And a third sending unit, configured to send, to the user equipment, RRC signaling or MAC signaling that carries the number of statistical data packets.

The access network device according to claim 24, wherein the sending module further comprises:

And a fourth sending unit, configured to send an end signal to the user equipment, so that the user equipment stops sending the data packet according to the end signal.

26. A user equipment, comprising:

a sending module, configured to send a data packet to the access network device, where the data packet carries a time stamp And determining, by the access network device, the delay time of the data packet in the user equipment according to the time identifier.

The user equipment according to claim 26, further comprising: a receiving module, configured to receive a trigger signal sent by the access network device;

The sending module is configured to send a data packet to the access network device according to the trigger signal.

The user equipment according to claim 27, wherein the sending module is further configured to:

If the trigger signal is the radio resource control RRC signaling or the MAC signaling that carries the statistics start, the end signal sent by the access network device is received, and the data packet is stopped according to the stop signal;

If the trigger signal is RRC signaling or MAC signaling carrying a statistical period, when the statistical period ends, the sending of the data packet is stopped;