CN101534310A - A data transferring method and a data processing apparatus - Google Patents

Abstract

The embodiment of the invention discloses a data transmission method and a data processing device. One of the methods includes: acquiring transmission data; adjusting multiplexing parameters according to the transmission data; using the multiplexing parameters to multiplex the data to be sent to obtain a point-to-point multiplexing protocol frame; sending the point-to-point Multiplexing protocol frames. A method includes: obtaining the length of the subframe header of the point-to-point multiplexing protocol; according to the length of the subframe header of the point-to-point multiplexing protocol, judging whether the ratio of valid information after multiplexing is smaller than the ratio of valid information before multiplexing ; If the ratio of valid information after multiplexing is smaller than the ratio of valid information before multiplexing, send a point-to-point protocol subframe; if the ratio of valid information after multiplexing is greater than the ratio of valid information before multiplexing, send a point-to-point multiplexing protocol frame. The embodiments of the present invention can effectively improve transmission efficiency.

Description

Data transmission method and data processing device

technical field

The invention relates to the field of communication technology, in particular to a data transmission method and a data processing device.

Background technique

Point-to-Point Protocol (PPP, Point-to-Point Protocol) is a link layer protocol designed for simple links such as transmitting data packets between equivalent units. This link provides full-duplex operation and delivers packets in order. The design purpose is mainly to establish a point-to-point connection to send data through dial-up or leased line, making it a common solution for simple connection between various hosts, bridges and routers.

PPP multiplexing protocol (PPPMUX, PPP Multiplexing) is a protocol used for frame multiplexing in the PPP protocol cluster. It allows multiple common PPP frames to be multiplexed and encapsulated into one PPPMUX frame, thereby reducing the header consumption of PPP frames and improving bandwidth utilization.

The PPPMUX frame is also a kind of PPP frame, and the realization is only that a specific encapsulation structure is used in the payload part of the PPP frame to combine multiple PPP subframes together.

The PPPMUX frame obtained by multiplexing has more auxiliary fields than the common frame, and the length of these fields may reach 2 bytes.

In the prior art, there are two ways to determine how much data is multiplexed in a PPPMUX frame:

1. Time limit, when a certain time is reached, a PPPMUX frame will be sent immediately if it is not filled;

2. Constrain the frame length of the PPPMUX frame. When the PPPMUX frame length reaches a certain level, it will no longer be multiplexed and sent immediately.

During the research and practice of the prior art, the inventor found the following problems in the prior art:

In the actual network environment, the transmission data is constantly changing. The multiplexing of PPPMUX frames is constrained by a fixed time and packet length. Various changes that will occur during actual transmission are not considered, which will often affect the multiplexing. efficiency, thereby affecting the transmission efficiency.

Contents of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a data transmission method and a data processing device, which can effectively improve transmission efficiency.

In order to solve the above technical problems, an embodiment of the present invention provides a method for transmitting data, including:

Obtain the transmission data;

adjusting multiplexing parameters according to the transmission data;

Multiplexing the data to be sent by using the multiplexing parameters to obtain a point-to-point multiplexing protocol frame;

sending the point-to-point multiplexing protocol frame.

On the other hand, a method for transferring data is provided, including:

Obtain the length of the point-to-point multiplexing protocol subframe header;

According to the subframe header length of the point-to-point multiplexing protocol, it is judged whether the effective information ratio after multiplexing is smaller than the effective information ratio before multiplexing;

If the ratio of valid information after multiplexing is smaller than the ratio of valid information before multiplexing, send a point-to-point protocol subframe;

If the proportion of valid information after multiplexing is greater than the proportion of valid information before multiplexing, a point-to-point multiplexing protocol frame is sent.

In another aspect, a data processing device is provided, comprising:

an acquisition unit, configured to acquire transmission data;

an adjustment unit, configured to adjust multiplexing parameters according to the transmission data acquired by the acquisition unit;

a multiplexing unit, configured to use the multiplexing parameters acquired by the adjustment unit to multiplex the data to be sent to obtain a point-to-point multiplexing protocol frame;

A sending unit, configured to send the point-to-point multiplexing protocol frame acquired by the multiplexing unit.

In another aspect, a data processing device is provided, comprising:

An acquisition unit, configured to acquire the length of the point-to-point multiplexing protocol subframe header;

A judging unit, configured to judge whether the proportion of valid information after multiplexing is smaller than the proportion of valid information before multiplexing according to the length of the point-to-point multiplexing protocol subframe header acquired by the acquiring unit;

A sending unit, configured to send a point-to-point protocol subframe when the judging unit judges that the ratio of valid information after multiplexing is smaller than the ratio of valid information before multiplexing; when the judging unit judges that the ratio of valid information after multiplexing is greater than that before multiplexing When the effective information ratio is exceeded, the multiplexed point-to-point multiplexing protocol frame is sent.

It can be seen from the above technical solutions that because the multiplexing parameters are adjusted with reference to the transmission data that will be affected by the network environment, it can better adapt to the influence of the network environment on the actual transmission situation, and effectively improve the transmission efficiency of using PPPMUX.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a flow chart of Embodiment 1 of a method for transmitting data provided by an embodiment of the present invention;

FIG. 2 is a flow chart of Embodiment 2 of the method for transmitting data provided by the embodiment of the present invention;

FIG. 3 is a flow chart of Embodiment 3 of the method for transmitting data provided by the embodiment of the present invention;

FIG. 4 is a structural diagram of Embodiment 1 of a data processing device provided by the present invention;

Fig. 5 is a structural diagram of Embodiment 2 of the data processing device provided by the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Embodiments of the present invention provide a data transmission method and a data processing device, which can effectively improve transmission efficiency.

In the data transmission method provided by the embodiment of the present invention, the data processing device at the sending end obtains the transmission data; adjusts the multiplexing parameters according to the transmission data; uses the multiplexing parameters to multiplex the data to be sent to obtain point-to-point multiplexing protocol frame; sending the point-to-point multiplexing protocol frame.

The transmission data may be the cached data volume, bit error rate, etc. of the local queue. Due to the influence of the network environment, the transmission data often changes. The embodiment of the present invention adjusts the multiplexing by referring to the transmission data that will be affected by the network environment. The parameters can better adapt to the influence of the network environment on the actual transmission situation, and effectively improve the transmission efficiency of using PPPMUX.

Depending on the obtained transmission data, the adjusted multiplexing parameter object is also different, for example:

The obtained transmission data is the cached data volume of the local queue, and the adjusted multiplexing parameter object is the multiplexing timeout time;

The obtained transmission data is the bit error rate, and then the adjusted multiplexing parameter object is the number of multiplexed packets, that is, the number of PPP frames multiplexed by each PPPMUX frame.

In the existing technology, when the waiting time is fixed, if there are very few packets received in a period of time and too few packets are multiplexed, the space overhead and performance overhead for multiplexing may exceed When the packet length of the PPPMUX frame is fixed, if the PPPMUX frame length does not reach the agreed length, even if there is no cache, it will wait for the arrival of the next packet to be multiplexed. For small packets that have been multiplexed , the delay characteristics will become worse, affecting efficiency.

In the first embodiment of the method for transmitting data provided by the embodiment of the present invention, the acquired transmission data is the cached data volume of the local queue. If the current cached data volume is large, indicating that the traffic is large, the timeout waiting time should be increased, that is, multiplexing Timeout to improve the reuse rate. If the current buffered data volume is small, it means that the traffic is relatively small, and the multiplexing timeout time should be reduced to reduce the multiplexing rate, shorten the delay, and improve the traffic quality.

FIG. 1 is a flow chart of Embodiment 1 of a method for transmitting data provided by an embodiment of the present invention, including:

101. Obtain the cached data volume of the local queue;

102. Comparing the cached data amount with a predetermined condition, and adjusting the multiplexing timeout time according to the comparison result;

Predetermined condition can be adjusted according to actual conditions, and the scheme that present embodiment provides is as follows:

1) Preset the congestion threshold according to the actual situation, compare the buffered data volume with the congestion threshold, when it is lower than the congestion threshold, trigger PPPMUX multiplexer parameter adjustment, increase the PPPMUX multiplexing timeout time; when it is higher than the congestion threshold, reduce PPPMUX Multiplexing timeout;

The magnitude of decrease and increase can be a predetermined value;

Further, a value range of the multiplexing timeout time can be given to avoid making the minimum value of the multiplexing timeout time too small or "0", and also avoid making the maximum value of the multiplexing timeout time too large. Exceeding the bandwidth limit;

Suppose BUFFER_MIN is the minimum buffer size, BUFFER_MAX is the maximum buffer size, BANDWIDTH is the pre-allocated bandwidth, MAX_DELAYTIME is the maximum delay allowed, and TIMEOUT is the multiplexing timeout time; the relationship between them can be expressed as:

BUFFER_MIN/BANDWIDTH<TIMEOUT<BUFFER_MAX/BANDWIDTH

TIMEOUT<MAX_DELAYTIME

That is, the minimum value of TIMEOUT is greater than the minimum cache amount divided by the pre-allocated bandwidth, and it can also be greater than or equal to the relationship in actual use; the maximum value of TIMEOUT is smaller than the maximum cache amount divided by the pre-allocated bandwidth, and it can also be less than or equal to in actual use The relationship; at the same time, TIMEOUT should also be less than the maximum allowable delay;

Among these parameters, the four parameters BUFFER_MIN, BUFFER_MAX, BANDWIDTH, and MAX_DELAYTIME are values given when the link is configured.

2) Compare the cached data volume with the minimum cached volume and the maximum cached volume, and when the cached data volume is between the minimum cached volume and the maximum cached volume, make the multiplexing timeout equal to the ratio of the current cached data volume to the pre-allocated bandwidth, Assuming BUFFER is the current amount of cached data, the formula for multiplexing timeout can be expressed as:

TIMEOUT=BUFFER/BANDWIDTH

The larger the current cache data volume, the greater the multiplexing timeout period, and the smaller the current cached data volume, the smaller the multiplexing timeout period;

When the amount of cached data is less than the minimum cache volume, the multiplexing timeout period is equal to the ratio of the minimum cache volume to the pre-allocated bandwidth. The formula for the multiplexing timeout period can be expressed as:

TIMEOUT=BUFFER_MIN/BANDWIDTH

At this time, the ratio of the current cached data volume to the pre-allocated bandwidth is used. The value is too small, and the current cached data volume may be zero, so directly use the ratio of the minimum cached data volume to the pre-allocated bandwidth as the multiplexing timeout time;

When the amount of cached data is greater than the maximum cache volume, the multiplexing timeout period is equal to the ratio of the maximum cache volume to the pre-allocated bandwidth. The formula for the multiplexing timeout period can be expressed as:

TIMEOUT=BUFFER_MAX/BANDWIDTH

At this time, the ratio of the current cached data amount to the pre-allocated bandwidth is used. If the value is too large, and the multiplexed data may exceed the bandwidth limit, the ratio of the maximum cached amount to the pre-allocated bandwidth is directly used as the multiplexing timeout time.

103. Using the adjusted multiplexing timeout time to multiplex the data to be sent to obtain a PPPMUX frame;

104. Send the PPPMUX frame.

The process ends.

In the first embodiment of the method for transmitting data provided by the embodiment of the present invention, since the current cached data volume is used to adjust the multiplexing timeout time, when the current cached data volume is large and the flow rate is large, the multiplexing timeout time is increased to improve the multiplexing time. When the current cache data volume is small and the flow rate is small, the multiplexing timeout time is reduced, the multiplexing rate is reduced, the delay is also shortened, and the traffic quality is improved, which avoids the use of fixed time and fixed packet length in the existing technology. problem, the effective use of transmission resources improves the transmission efficiency.

Furthermore, because the transmission network is likely to have bit errors or packet loss, a large amount of multiplexed data in a PPPMUX frame may completely fail to effectively transmit small packets under the condition of high bit errors.

For example, 100 short PPP packets can be multiplexed into 10 long PPPMUX packets. The 100 small PPP packets are sent within 100ms, and 20 BIT errors occur evenly within 100ms due to line quality problems.

Then 2 bits (BIT) errors may occur in each PPPMUX message, because the cyclic redundancy check (CRC, Cyclic Redundancy Check) of the physical layer may not be able to correct the 2BIT errors, causing all PPPMUX messages to be discarded, so in Finally, the receiving end cannot restore a PPP packet.

If the number of small PPP packets multiplexed by each PPPMUX packet is limited, for example, only 5 are allowed to be multiplexed, 20 such PPPMUX packets will be multiplexed. At this time, each PPPMUX message has only 1BIT error, and the 1BIT error can be corrected by CRC check at the physical layer. Therefore, it is possible for the receiving end to completely restore all PPP packets.

From the above analysis, it can be seen that appropriately reducing the number of multiplexed packets of PPPMUX is beneficial to improve the anti-error capability of packet transmission under certain bit error conditions.

In the second embodiment of the method for transmitting data provided by the embodiment of the present invention, the obtained transmission data is the bit error rate, the number of multiplexed packets is increased in the case of a low bit error rate, and the number of multiplexed packets is appropriately reduced in the case of a high bit error rate Packets to meet the needs of the actual network environment.

FIG. 2 is a flow chart of Embodiment 2 of the method for transmitting data provided by the embodiment of the present invention, including:

201. Obtain the current bit error rate;

202. Adjust the maximum number of reusable packets according to the bit error rate;

This embodiment provides the following adjustment methods:

1) Compare the bit error rate with the preset threshold value. When it is lower than the preset threshold value, increase the maximum number of reusable packets. When it is higher than the preset threshold value, reduce the maximum number of reusable packets. The number of messages, the range of reduction or increase can be set according to the actual situation. Further, the value range of the maximum number of multiplexed packets can be given, the minimum number of multiplexed packets cannot be less than the minimum number of multiplexed packets stipulated by the system, and the maximum cannot be greater than the maximum number of multiplexed packets allowed under the condition of no error code.

2) Comparing the current bit error rate with the previously obtained bit error rate, when it is lower than the previously obtained bit error rate, increase the maximum number of reusable packets, which is higher than the previously obtained bit error rate , reduce the maximum number of multiplexable packets. Further, the value range of the maximum number of multiplexed packets can be given, the minimum number of multiplexed packets cannot be less than the minimum number of multiplexed packets stipulated by the system, and the maximum cannot be greater than the maximum number of multiplexed packets allowed under the condition of no error code.

3) When the bit error rate is lower than the minimum bit error rate, the maximum number of multiplexed packets allowed under the condition of no bit error is used as the maximum number of multiplexed packets currently allowed, and the formula is expressed as:

IF(E<E_MIN)M_NUM=M_MAX

Among them, M_NUM is the maximum number of multiplexed packets currently allowed; M_MAX is the maximum number of multiplexed packets allowed under the condition of no error; E is the current bit error rate; E_MIN is the minimum bit error rate;

When the bit error rate is between the minimum bit error rate and the maximum bit error rate, the number of multiplexed packets in each bit error case is obtained according to the stepping algorithm, and the formula is expressed as:

IF((E>E_MIN)&&(E<E_MAX))

M_NUM＝M_MIN+(M_MAX-M_MIN)×(E-E_MIN)/((E_MAX-E_MIN)/S)

Among them, M_NUM is the maximum number of multiplexed packets currently allowed; M_MAX is the maximum number of multiplexed packets allowed under the condition of no error; M_MIN is the maximum number of multiplexed packets under the condition of high error; E_MAX is the maximum acceptable Bit error rate; E is the current bit error rate; E_MIN is the minimum bit error rate; S is the step height of the bit error rate, this parameter can be adjusted according to the application requirements;

When the bit error rate is higher than the maximum bit error rate, use the minimum number of multiplexed packets, that is, the maximum number of multiplexed packets in the case of high bit errors, as the maximum number of multiplexed packets currently allowed. The formula is expressed as:

IF(E>E_MAX)M_NUM=M_MIN

Among them, E_MAX is the maximum acceptable bit error rate; M_NUM is the maximum number of multiplexed packets currently allowed; M_MIN is the maximum number of multiplexed packets under high bit error conditions; E is the current bit error rate.

203. Using the maximum number of multiplexable packets to multiplex the data to be sent to obtain a PPPMUX frame;

Further, the first embodiment of the method for transmitting data provided by the embodiment of the present invention can be used in conjunction with the second embodiment of the method for transmitting data provided by the embodiment of the present invention, that is, the multiplexing timeout period can be adjusted with reference to the amount of cached data at the same time according to the actual situation, and Refer to the bit error rate to adjust the maximum number of multiplexed packets. For example, when the multiplexed timeout time is reached but the maximum number of multiplexed packets has not been reached, the multiplexing is completed and PPPMUX frames are obtained. At this time, the multiplexed timeout time can be used. Send the PPPMUX frame; or when the multiplexing timeout has not been reached but the maximum number of multiplexed messages has been reached, the multiplexing is completed and the PPPMUX frame is obtained. At this time, the PPPMUX frame can be sent according to the maximum number of multiplexed messages. Therefore, the maximum number of reusable packets only represents the maximum number of reusable packets. In actual multiplexing, the number of multiplexed packets may also be affected by the multiplexing timeout time. Similarly, the multiplexing timeout time may also be affected by the maximum possible The impact of the number of multiplexed packets.

204. Send the PPPMUX frame.

The process ends.

In the second embodiment of the method for transmitting data provided by the embodiment of the present invention, since the maximum number of multiplexed packets is adjusted with reference to the current bit error rate, the number of multiplexed packets is increased in the case of a low bit error rate, and the number of multiplexed packets is increased in the case of a high bit error rate. Appropriately reducing the number of multiplexed packets under high-rate conditions can effectively avoid the problem that in the prior art, when the amount of multiplexed data is too large due to the use of fixed-time and fixed-packet lengths, the small packets cannot be effectively transmitted at all in the case of high bit errors.

If very few packets are received in a period of time and too few packets are multiplexed, the space overhead and performance overhead for multiplexing may exceed the case of no multiplexing, and resources are wasted instead. In the scheme given in the third embodiment of the data transmission method provided by the embodiment of the invention, before multiplexing, it is first judged whether the efficiency after multiplexing will be better than that before taking it, and then decide whether to multiplex.

Fig. 3 is a flow chart of Embodiment 3 of the method for transmitting data provided by the embodiment of the present invention, including:

301. Obtain the length of the PPPMUX subframe header;

When the two ends of the PPP system negotiate the structure of the message, the two parties send the format information they support to the other end, and finally obtain the format standard supported by them, and the length of the PPPMUX subframe header is usually confirmed and obtained according to the negotiation result.

302. According to the length of the PPPMUX subframe header, determine whether the effective information ratio after multiplexing is smaller than the effective information ratio before multiplexing; if yes, execute step 303, otherwise execute step 304;

Assuming that the message payload length is L, the number of PPP subframes multiplexed in a PPPMUX subframe is N, the length of the PPPMUX subframe header is M, and the length of the PPP subframe header is 5, the data volume of valid information can be Expressed as:

L×N (1—1);

The total amount of data before multiplexing can be expressed as:

L×N+5×N (1—2);

According to (1-1) and (1-2), the proportion of effective information before multiplexing can be expressed as:

(L×N)/(L×N+5×N) (1—3);

The total data volume after multiplexing can be expressed as:

L×N+5+M×N (1—4);

According to (1-1) and (1-4), the effective information ratio after multiplexing can be expressed as:

(L×N)/(L×N+5+M×N) (1—5);

Therefore, the proportion of effective information after multiplexing is smaller than that before multiplexing can be expressed as:

(L×N)/(L×N+5×N)>L×N/(L×N+5+M×N) (1—6);

Simplifying (1-6), we can get:

N<5/(5-M) (1—7);

That is to say, as long as formula (1-7) is established, the ratio of valid information after multiplexing will be smaller than that before multiplexing, and the proportion of resources occupied by valid information after multiplexing is not as good as that before multiplexing.

303. Send the PPP subframe, and the process ends.

In actual operation, when the judgment of step 302 is performed, the PPP subframe may have been multiplexed into a PPPMUX subframe, or the received PPP subframe may not be multiplexed. In step 302, it is assumed that the received PPP subframe It is multiplexed into a PPPMUX subframe, and if multiplexed, it is judged whether the effective information ratio after multiplexing is smaller than the effective information ratio before multiplexing. Therefore, when step 303 is executed, two situations may occur: 1. PPP subframes have been multiplexed into PPPMUX subframes; 2. The received PPP subframes have not been multiplexed.

If the PPP subframe has been multiplexed into a PPPMUX subframe, the multiplexing can be released, and the PPP subframe can be restored for transmission; if the multiplexing has not been performed, the PPP subframe can be directly transmitted.

304. Send the multiplexed PPPMUX subframe, and the process ends.

The methods provided in Embodiments 1 and 2 of the method for transmitting data provided in the embodiments of the present invention may be used for multiplexing.

If there are very few messages received in a period of time, and there are too few multiplexed messages, the space overhead and performance overhead for multiplexing may exceed the situation of no multiplexing, and resources are wasted instead; the implementation of the present invention Example 3 of the data transmission method provided by the example compares the ratio of effective information after multiplexing with the ratio of valid information before multiplexing. When the ratio of valid information after multiplexing is smaller than the ratio of valid information before multiplexing, multiplexing is not performed and the data is sent directly. The PPP subframe effectively avoids resource waste caused by too few multiplexed packets.

Those of ordinary skill in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing related hardware through a program. The program can be stored in a computer-readable storage medium, and the program can be executed when executed , including the following steps:

A method of transferring data comprising:

get data transfer;

adjusting multiplexing parameters according to the transmission data;

Multiplexing the data to be sent by using the multiplexing parameters to obtain a point-to-point multiplexing protocol frame;

sending the point-to-point multiplexing protocol frame.

A method of transferring data comprising:

Obtain the length of the point-to-point multiplexing protocol subframe header;

According to the subframe header length of the point-to-point multiplexing protocol, it is judged whether the effective information ratio after multiplexing is smaller than the effective information ratio before multiplexing;

If the ratio of valid information after multiplexing is smaller than the ratio of valid information before multiplexing, send a point-to-point protocol subframe;

If the proportion of valid information after multiplexing is greater than the proportion of valid information before multiplexing, a point-to-point multiplexing protocol frame is sent.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like.

The structure of Embodiment 1 of the data processing device provided by the present invention is shown in Figure 4, including:

An acquisition unit 401, configured to acquire transmission data;

The transmitted data may be the amount of buffered data in the local queue, bit error rate, etc. Due to the influence of the network environment, the transmitted data often changes.

an adjusting unit 402, configured to adjust multiplexing parameters according to the transmission data acquired by the acquiring unit 401;

A multiplexing unit 403, configured to use the multiplexing parameters obtained by the adjustment unit 402 to multiplex the data to be sent to obtain a point-to-point multiplexing protocol frame;

The sending unit 404 is configured to send the point-to-point multiplexing protocol frame obtained by the multiplexing unit 403 .

Further, when the transmission data is the cached data volume of the local queue;

The adjusting unit is configured to compare the amount of cached data acquired by the acquiring unit with a predetermined condition, and adjust the multiplexing timeout time according to the comparison result.

At this point, the adjustment unit may include:

The first adjustment unit is used to compare the amount of cached data acquired by the acquisition unit with the congestion threshold, and increase the multiplexing timeout time when the amount of cached data is lower than the congestion threshold; when the amount of cached data is higher than the congestion threshold When the threshold is set, reduce the multiplexing timeout time;

Or, a second adjustment unit, configured to make the multiplexing timeout period equal to the ratio of the current buffered data amount to the pre-allocated bandwidth when the buffered data amount acquired by the acquiring unit is between the minimum buffered amount and the maximum buffered amount; When the amount of cached data acquired by the acquiring unit is less than the minimum cache amount, make the multiplexing timeout time equal to the ratio of the minimum cache amount to the pre-allocated bandwidth; when the cached data amount is greater than the maximum cache amount, make the multiplex The timeout period is equal to the ratio of the maximum cache size to the pre-allocated bandwidth.

Further, when the transmission data is a bit error rate;

The adjustment unit is used to adjust the maximum number of multiplexable packets according to the bit error rate acquired by the acquisition unit.

At this point, the adjustment unit includes:

The third adjustment unit is used to increase the maximum number of reusable packets when the bit error rate is lower than the preset threshold value, and reduce the maximum number of reusable packets when the bit error rate is higher than the preset threshold value. number of reusable packets;

Or, the fourth adjustment unit is configured to increase the maximum number of multiplexable packets when the bit error rate is lower than the previously obtained bit error rate, and increase the maximum number of multiplexable packets when the bit error rate is higher than the previously obtained bit error rate When the code rate is high, reduce the maximum number of multiplexable packets;

Or, the fifth adjustment unit is used to use the maximum number of multiplexed packets allowed under the condition of no bit error as the maximum number of multiplexed packets when the bit error rate is lower than the minimum bit error rate; When the bit error rate is between the minimum bit error rate and the maximum bit error rate, the maximum number of multiplexed packets in each bit error case is obtained according to the stepping algorithm; when the bit error rate is higher than the maximum bit error rate, use The minimum number of multiplexed packets is used as the maximum number of multiplexed packets.

The structure of Embodiment 2 of the data processing device provided by the present invention is shown in Figure 5, including:

An acquisition unit 501, configured to acquire the length of the point-to-point multiplexing protocol subframe header;

A judging unit 502, configured to judge whether the proportion of valid information after multiplexing is smaller than the proportion of valid information before multiplexing according to the length of the point-to-point multiplexing protocol subframe header acquired by the acquiring unit 501;

The sending unit 503 is used to send the point-to-point protocol subframe when the judging unit 502 judges that the ratio of valid information after multiplexing is smaller than the ratio of valid information before multiplexing; when the judging unit 502 judges that the ratio of valid information after multiplexing is greater than When the proportion of valid information before multiplexing is used, the multiplexed point-to-point multiplexing protocol frame is sent.

For the method of using the embodiment of the data processing device provided by the present invention, reference may be made to the above description of the embodiment of the method for transmitting data provided by the present invention, which will not be repeated here.

A method for transmitting data and a data processing device provided by the present invention have been described above in detail. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The descriptions of the above embodiments are only used to help understand the present invention. The method of the invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be understood To limit the present invention.

Claims (13)

1, a kind of method of transmitting data is characterized in that, comprising:

Obtain the transmission data;

Adjust multiplexing parameters according to described transmission data;

It is multiplexing to use described multiplexing parameters that data to be sent are carried out, and obtains point-to-point multiplex protocol frame;

Send described point-to-point multiplex protocol frame.

2, the method for claim 1 is characterized in that, described transmission data are the buffer data size of local queue;

Describedly adjust multiplexing parameters according to described transmission data and comprise: described buffer data size is compared with predetermined condition, adjust multiplexing time-out time according to comparative result.

3, method as claimed in claim 2 is characterized in that, described described buffer data size is compared with predetermined condition, adjusts multiplexing time-out time according to comparative result and comprises:

Described buffer data size and congestion threshold are compared, when described buffer data size is lower than congestion threshold, increase multiplexing time-out time; When described buffer data size is higher than congestion threshold, reduce multiplexing time-out time;

Or, when described buffer data size is between minimal cache amount and largest buffered amount, make described multiplexing time-out time equal the ratio of current cache data volume and preassignment bandwidth; When described buffer data size during, make described multiplexing time-out time equal the ratio of minimal cache amount and preassignment bandwidth less than the minimal cache amount; When described buffer data size during, make described multiplexing time-out time equal the ratio of largest buffered amount and preassignment bandwidth greater than the largest buffered amount.

4, the method for claim 1 is characterized in that, described transmission data are the error rate;

Describedly adjust multiplexing parameters according to described transmission data and comprise:, adjust maximum reusable message number according to the described error rate.

5, method as claimed in claim 4 is characterized in that, according to the described error rate, adjusts maximum reusable message number and comprises:

When the described error rate is lower than default threshold value, improve maximum reusable message number, when the described error rate is higher than default threshold value, reduce maximum reusable message number;

Or, when the described error rate is lower than the error rate that formerly gets access to, improve maximum reusable message number, when the described error rate is higher than the error rate that formerly gets access to, reduce maximum reusable message number;

Or, when the described error rate is lower than minimum bit-error rate, use the maximum multiplexing packet number that allows under the no error code situation as maximum reusable message number; When the described error rate is between minimum bit-error rate and maximum bit error rate, obtain maximum reusable message number under each section error condition according to the stepping algorithm; When the described error rate is higher than maximum bit error rate, use minimum multiplexing packet number as maximum reusable message number.

6, as claim 1,2,3,4 or 5 described methods, it is characterized in that, also comprise:

Before sending described point-to-point multiplex protocol frame, obtain point-to-point multiplex protocol subframe head length degree;

According to described point-to-point multiplex protocol subframe head length degree, more multiplexing back effective information ratio and multiplexing before the effective information ratio, greater than before multiplexing during the effective information ratio, send described point-to-point multiplex protocol frame in multiplexing back effective information ratio.

7, a kind of method of transmitting data is characterized in that, comprising:

Obtain point-to-point multiplex protocol subframe head length degree;

According to described point-to-point multiplex protocol subframe head length degree, judge that whether multiplexing back effective information ratio is less than effective information ratio before multiplexing;

If multiplexing back effective information ratio sends the peer-peer protocol subframe less than effective information ratio before multiplexing;

If multiplexing back effective information ratio sends point-to-point multiplex protocol frame greater than effective information ratio before multiplexing.

8, a kind of data processing equipment is characterized in that, comprising:

Acquiring unit is used to obtain the transmission data;

Adjustment unit, the transmission data that are used for obtaining according to described acquiring unit are adjusted multiplexing parameters;

Multiplexing Unit, the multiplexing parameters that is used to use described adjustment unit to obtain is carried out multiplexing to data to be sent, obtain point-to-point multiplex protocol frame;

Transmitting element is used to send the point-to-point multiplex protocol frame that described Multiplexing Unit obtains.

9, data processing equipment as claimed in claim 8 is characterized in that, described transmission data are the buffer data size of local queue;

The buffer data size that described adjustment unit specifically is used for described acquiring unit is obtained is compared with predetermined condition, adjusts multiplexing time-out time according to comparative result.

10, data processing equipment as claimed in claim 9 is characterized in that, described adjustment unit comprises:

First adjustment unit, the buffer data size and the congestion threshold that are used for described acquiring unit is obtained compare, and when described buffer data size is lower than congestion threshold, increase multiplexing time-out time; When described buffer data size is higher than congestion threshold, reduce multiplexing time-out time;

Or second adjustment unit is used for making described multiplexing time-out time equal the ratio of current cache data volume and preassignment bandwidth when buffer data size that described acquiring unit obtains is between minimal cache amount and largest buffered amount; The buffer data size that obtains at described acquiring unit makes described multiplexing time-out time equal the ratio of minimal cache amount and preassignment bandwidth during less than the minimal cache amount; When described buffer data size during, make described multiplexing time-out time equal the ratio of largest buffered amount and preassignment bandwidth greater than the largest buffered amount.

11, data processing equipment as claimed in claim 8 is characterized in that, described transmission data are the error rate;

Described adjustment unit specifically is used for the error rate obtained according to described acquiring unit, adjusts maximum reusable message number.

12, data processing equipment as claimed in claim 11 is characterized in that, described adjustment unit comprises:

The 3rd adjustment unit is used for when the described error rate is lower than default threshold value, improves maximum reusable message number, when the described error rate is higher than default threshold value, reduces maximum reusable message number;

Or the 4th adjustment unit is used for when the described error rate is lower than the error rate that formerly gets access to, and improves maximum reusable message number, when the described error rate is higher than the error rate that formerly gets access to, reduces maximum reusable message number;

Or the 5th adjustment unit is used for when the described error rate is lower than minimum bit-error rate, uses the maximum multiplexing packet number that allows under the no error code situation as maximum reusable message number; When the described error rate is between minimum bit-error rate and maximum bit error rate, obtain maximum reusable message number under each section error condition according to the stepping algorithm; When the described error rate is higher than maximum bit error rate, use minimum multiplexing packet number as maximum reusable message number.

13, a kind of data processing equipment is characterized in that, comprising:

Acquiring unit is used to obtain point-to-point multiplex protocol subframe head length degree;

Judging unit is used for the point-to-point multiplex protocol subframe head length degree that obtains according to described acquiring unit, judges that whether multiplexing back effective information ratio is less than effective information ratio before multiplexing;

Transmitting element, be used for when the multiplexing back of described judgment unit judges effective information ratio less than before multiplexing during the effective information ratio, send the peer-peer protocol subframe; When the multiplexing back of described judgment unit judges effective information ratio greater than before multiplexing during the effective information ratio, send the point-to-point multiplex protocol frame of multiplexing mistake.

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