CN106550392B - Method and device for acquiring measurement period - Google Patents

Method and device for acquiring measurement period Download PDF

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CN106550392B
CN106550392B CN201510612950.4A CN201510612950A CN106550392B CN 106550392 B CN106550392 B CN 106550392B CN 201510612950 A CN201510612950 A CN 201510612950A CN 106550392 B CN106550392 B CN 106550392B
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measurement period
period
value
error rate
bit error
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CN106550392A (en
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安久江
陈锋
彭陈发
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China Mobile Group Zhejiang Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0078Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0079Formats for control data
    • H04L1/0082Formats for control data fields explicitly indicating existence of error in data being transmitted, e.g. so that downstream stations can avoid decoding erroneous packet; relays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/24Testing correct operation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports

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Abstract

The invention provides a method and a device for acquiring a measurement period, wherein the method for acquiring the measurement period comprises the following steps: receiving the bit error rate arithmetic mean value of a plurality of wireless link data blocks reported by the terminal equipment according to a first measurement period; comparing the plurality of bit error rate arithmetic mean values with a preset threshold value, adjusting the first measurement period according to the comparison result, and determining a second measurement period; and sending the second measurement period to the terminal equipment, so that the terminal equipment reports the bit error rate arithmetic mean value of the wireless link data block according to the second measurement period. The embodiment of the invention can ensure that the data transmission of the terminal automatically and quickly meets the change of the wireless environment, achieves the dynamic self-adaptive adjustment of the BEP period, ensures that the terminal adjusts the mean/cv BEP value in time in the area with large change of the wireless environment, finds a more effective and reliable terminal data transmission coding mode and improves the internet surfing perception of a user.

Description

Method and device for acquiring measurement period
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for acquiring a measurement period.
Background
In the prior art, a data terminal transmits data according to different coding modes according to the change condition of a wireless environment, the terminal performs measurement calculation of mean BEP (arithmetic mean of BEP values)/cv BEP (standard variance value of BEP values) in a BEP (bit error probability) measurement period set by a network, wherein the BEP period is broadcasted to the terminal through a system message SI13, a base station controller BSC performs table lookup matching according to the measurement value of the mean BEP/cv BEP to obtain a corresponding coding mode, issues the corresponding coding mode to the terminal through an assignment message, and the terminal performs transmission of data blocks according to a new uplink and downlink coding mode.
The adjustment of the downlink data block transmission coding mode of the terminal comprises two stages, as shown in fig. 1, the first stage is step 1 to step 3, before the BSC receives the first "packet data control message", the downlink data block transmission coding mode is determined by the network initial setting coding mode, from step 4, the coding in the downlink data transmission carries out BEP lookup voting to determine the downlink coding mode according to mean BEP/cv BEP fed back by the terminal, and a specific signaling diagram is shown in fig. 1.
The uplink data block transmission coding mode of the terminal comprises two stages, as shown in fig. 2, the second stage is step 1 to step 3, before the first uplink data acknowledgement feedback message comes down, the base station controller tells the default coding mode to the terminal through a data uplink resource assignment message, after the 4 th step, the uplink data block transmission automatically inquires a BEP table according to the uplink block mean/cvBEP, the inquired coding mode tells the terminal through an uplink data acknowledgement feedback message, and a specific signaling diagram is shown in fig. 2.
The mean/cvBEP processing flow comprises the following steps: the 1 radio link data BLOCK (RLC BLOCK) is composed of 4 BURST pulses (BURST), each BURST pulse has a corresponding BEP, the mobile terminal MS and the base station controller BSC perform statistical analysis on MEAN and CV test values of uplink and downlink radio RLC data BLOCKs in a BEP test period, output corresponding MEAN BEP values and CV BEP values, and find corresponding uplink and downlink coding modes by querying a BEP table, as shown in fig. 3.
The table of the MS coding scheme and the correspondence between mean BEP and cv BEP is shown in table 1, for example, when the mean BEP value reported by the terminal is 29 and the cv BEP value is 2, the current MS coding scheme is MCS 6.
Figure BDA0000809352030000021
Figure BDA0000809352030000031
TABLE 1MS coding mode and mean BEP and cv BEP correspondence table
With the rapid popularization of smart phones and the rapid development of data applications, users have stronger demand for on-line networks anytime and anywhere. With the rapid development of cities, the occurrence probability of slow fading and multipath fading in the wireless environment of urban and suburban areas is obviously increased due to obstacles such as office buildings, residential buildings, transportation means, environmental green belts and the like, and in the moving process, a user acquires an uplink and downlink coding mode through a query protocol BEP table in a fixed BEP measurement period, transmits a data block, and selects a coding mode according to the above process in the next fixed BEP statistical period.
The purpose of mean/cv BEP calculation is to match the terminal coding mode with the wireless environment where the terminal is located as much as possible, to prevent the coding mode from shaking in a certain program, to prevent the signal from being relatively stable in a place with good wireless coverage, and to reduce the influence of BEP measurement period parameters on the coding mode; for the area with wide area coverage or insufficient coverage, the signal jitter is large, the power control is frequent, the terminal moves in the area, if the BEP measurement period is always large, the mean BEP value of the terminal is always low, even if there is a place with good coverage in the power control process, the terminal is always kept at a low coding rate, and the user experience is influenced.
Disclosure of Invention
The invention aims to provide a method and a device for acquiring a measurement period, which solve the problems of low terminal coding efficiency and influence on user experience caused by fixed BEP statistical period in the terminal moving process in the prior art.
In order to achieve the above object, an embodiment of the present invention provides a method for acquiring a measurement period, including:
receiving the bit error rate arithmetic mean value of a plurality of wireless link data blocks reported by the terminal equipment according to a first measurement period;
comparing the plurality of bit error rate arithmetic mean values with a preset threshold value, adjusting the first measurement period according to the comparison result, and determining a second measurement period;
and sending the second measurement period to the terminal equipment, so that the terminal equipment reports the bit error rate arithmetic mean value of the wireless link data block according to the second measurement period.
Before receiving the bit error rate arithmetic mean of the plurality of wireless link data blocks reported by the terminal device according to the first measurement period, the obtaining method further includes:
transmitting a wireless link data block to the terminal equipment according to a first coding mode;
receiving the bit error rate arithmetic mean value of the current wireless link data block reported by the terminal equipment in a first measurement period and the bit error rate standard variance value of the current wireless link data block;
and determining a second coding mode matched with the current wireless link data block according to the bit error rate arithmetic mean value and the bit error rate standard variance value, and sending the wireless link data block to the terminal equipment by utilizing the second coding mode.
Comparing the plurality of bit error rate arithmetic mean values with a preset threshold value, and adjusting the first measurement period according to the comparison result, wherein the step of determining the second measurement period comprises the following steps:
comparing the plurality of bit error rate arithmetic mean values with a preset threshold value to obtain a comparison result;
if the comparison result shows that the number of arithmetic mean values which are larger than the preset threshold value in the plurality of bit error rate arithmetic mean values is smaller than a first preset value, reducing the first measurement period to obtain a second measurement period;
if the comparison result shows that the number of arithmetic mean values which are larger than the preset threshold value in the plurality of bit error rate arithmetic mean values is larger than a second preset value, increasing the first measurement period to obtain a second measurement period; wherein the first preset value is less than or equal to a second preset value.
Wherein the step of reducing the first measurement period to obtain a second measurement period comprises:
and reducing the first measuring period by a first step value to obtain a second measuring period.
Wherein, the obtaining method further comprises:
and if the first measurement period is smaller than a first preset period after the first step value is reduced, determining the second measurement period as the first preset period.
Wherein, the step of increasing the first measurement period to obtain a second measurement period comprises:
and increasing the first measurement period by a second step value to obtain a second measurement period.
Wherein, the obtaining method further comprises:
and if the first measurement period is greater than a second preset period after the second step value is added, determining the second measurement period as the second preset period.
An embodiment of the present invention further provides an apparatus for acquiring a measurement period, including:
the first receiving module is used for receiving the bit error rate arithmetic mean value of a plurality of wireless link data blocks reported by the terminal equipment according to a first measurement period;
the determining module is used for comparing the bit error rate arithmetic mean values with a preset threshold value, adjusting the first measuring period according to the comparison result and determining a second measuring period;
and the sending module is used for sending the second measurement period to the terminal equipment, so that the terminal equipment reports the bit error rate arithmetic mean value of the wireless link data block according to the second measurement period.
Wherein, the acquisition device further comprises:
the data transmission module is used for transmitting the wireless link data block to the terminal equipment according to a first coding mode;
the second receiving module is used for receiving the bit error rate arithmetic mean value of the current wireless link data block reported by the terminal equipment in the first measuring period and the bit error rate standard variance value of the current wireless link data block;
and the coding determination module is used for determining a second coding mode matched with the current wireless link data block according to the bit error rate arithmetic mean value and the bit error rate standard variance value, and sending the wireless link data block to the terminal equipment by using the second coding mode.
Wherein the determining module comprises:
the comparison module is used for comparing the bit error rate arithmetic mean values with a preset threshold value to obtain a comparison result;
the first determining submodule is used for reducing the first measuring period to obtain a second measuring period if the comparison result shows that the number of arithmetic mean values which are larger than the preset threshold value in the plurality of bit error rate arithmetic mean values is smaller than a first preset value;
the second determining submodule is used for increasing the first measuring period to obtain a second measuring period if the comparison result shows that the number of arithmetic mean values which are larger than the preset threshold value in the plurality of bit error rate arithmetic mean values is larger than a second preset value; wherein the first preset value is less than or equal to a second preset value.
Wherein the first determination submodule includes:
and the first determining unit is used for reducing the first measuring period by a first step value to obtain a second measuring period.
Wherein, the acquisition device further comprises:
and the second determining unit is used for determining the second measuring period as the first preset period if the first measuring period is smaller than the first preset period after the first step value is reduced.
Wherein the second determination submodule includes:
and the third determining unit is used for increasing the first measuring period by a second step value to obtain a second measuring period.
Wherein, the acquisition device further comprises:
and a fourth determining unit, configured to determine that the second measurement period is the second preset period if the first measurement period is greater than the second preset period after the second step value is added to the first measurement period.
The technical scheme of the invention at least has the following beneficial effects:
in the method for obtaining the measurement period of the embodiment of the invention, a plurality of bit error rate arithmetic mean values are obtained according to the measurement of the first measurement period, and then the plurality of bit error rate arithmetic mean values are compared with a preset threshold value, so that the first measurement period is adjusted according to the comparison result to obtain the second measurement period, and the terminal equipment reports the bit error rate arithmetic mean values according to the second measurement period in the subsequent process; the purpose of timely adjusting the measurement period according to the wireless environment is achieved, the terminal equipment can report the bit error rate arithmetic mean value and the bit error rate standard variance value more timely according to the wireless environment, so that a more effective and reliable coding mode of the terminal is found more timely, and the internet surfing perception of a user is improved.
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Fig. 1 is a schematic diagram illustrating a transmission process of downlink data of a terminal device in the prior art;
fig. 2 is a schematic diagram illustrating a transmission process of uplink data of a terminal device in the prior art;
fig. 3 is a flowchart illustrating basic steps of a method for acquiring a measurement period according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a second measurement period determination step in the measurement period acquisition method according to the embodiment of the present invention;
FIG. 5 is a flow chart illustrating the detailed steps of a method for acquiring a measurement period in an embodiment of the present invention;
fig. 6 is a block diagram showing a configuration of an apparatus for acquiring a measurement period according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a method and a device for acquiring a measurement period, aiming at the problems that the coding efficiency of a terminal is low and the user experience is influenced because the BEP statistical period is fixed in the terminal moving process in the prior art, a plurality of bit error rate arithmetic mean values are obtained according to the measurement of a first measurement period, and then the plurality of bit error rate arithmetic mean values are compared with a preset threshold value, so that the first measurement period is adjusted according to the comparison result to obtain a second measurement period, and then the bit error rate arithmetic mean values are reported by terminal equipment according to the second measurement period in the subsequent process; the purpose of timely adjusting the measurement period according to the wireless environment is achieved, the terminal equipment can report the bit error rate arithmetic mean value and the bit error rate standard variance value more timely according to the wireless environment, so that a more effective and reliable coding mode of the terminal is found more timely, and the internet surfing perception of a user is improved.
As shown in fig. 3, an embodiment of the present invention provides a method for acquiring a measurement period, including:
step 11, receiving the bit error rate arithmetic mean value of a plurality of wireless link data blocks reported by the terminal equipment according to a first measurement period; specifically, the first measurement period is a measurement period configured in advance and acquired by the terminal device from the network side through the SI13 message. The arithmetic mean of the bit error rate of the wireless link data block, namely mean BEP; wherein, the content of each radio link data block is distributed in 4 bursts (bursts), and a BEP can be calculated for each Burst, and is marked as BEP1, BEP2, BEP3 and BEP 4; the mean BEP is the arithmetic mean of the BEPs of the 4 bursts, i.e., mean BEP ═ (BEP1+ BEP2+ BEP3+ BEP 4)/4. The mean BEP thus reflects the average level of signal quality. The meaning reported according to the first measurement period is specifically as follows: and when a first measurement period is initialized, the terminal equipment reports the mean BEP of the current data block, when a second first measurement period is started, the terminal equipment reports the mean BEP of the current data block, when a third first measurement period is started, the terminal reports the mean BEP of the current data block, and so on, the terminal equipment reports a plurality of mean BEPs.
Step 12, comparing the plurality of bit error rate arithmetic mean values with a preset threshold value, adjusting the first measurement period according to the comparison result, and determining a second measurement period; since the mean BEP can reflect the average level of the signal quality, in the embodiment of the present invention, a plurality of mean BEPs are compared with a preset threshold to obtain a comparison result; the comparison result can visually reflect the current signal quality level. And adjusting the first measurement period according to the comparison result, wherein the first measurement period is actually adjusted according to the signal quality level to obtain a second measurement period which is more matched with the current signal quality level.
And step 13, sending the second measurement period to the terminal equipment, so that the terminal equipment reports the bit error rate arithmetic mean value of the wireless link data block according to the second measurement period. And after the second measurement period is obtained, the second measurement period is sent to the terminal equipment, and then the terminal equipment can carry out measurement reporting of mean BEP according to the second measurement period which is more matched with the current signal quality level.
The embodiment of the invention changes the traditional mode of reporting mean BEP in a fixed measurement period, dynamically and adaptively adjusts the BEP measurement period according to the change of the wireless environment, and meets the data transmission requirement brought by the movement of a user or the rapid change of the wireless environment; specifically, the page download rate, the wireless single-channel time slot throughput rate, the downlink retransmission rate and the high-order code ratio of the application layer browsing class can be effectively improved.
Further, in another embodiment of the present invention, before the step 11, the obtaining method further includes:
step 14, sending a wireless link data block to the terminal equipment according to the first coding mode; the first coding mode is preset by the network side, and the base station controller BSC sends a wireless link data block to the terminal equipment through the preset first coding mode;
step 15, receiving the arithmetic mean value of the bit error rate of the current wireless link data block (namely mean BEP) and the standard variance value of the bit error rate of the current wireless link data block (namely cv BEP), which are reported by the terminal equipment in the first measurement period; when the first measurement period comes, for example, the first measurement period is 3min, after the base station controller BSC sends the radio link data block to the terminal equipment for 3min, the terminal equipment measures and reports the mean BEP and cvBEP of the radio link data block sent by the base station controller for 3 min.
And step 16, determining a second coding mode matched with the current wireless link data block according to the bit error rate arithmetic mean value and the bit error rate standard variance value, and sending the wireless link data block to the terminal equipment by using the second coding mode. The base station controller BSC finds the coding mode corresponding to the current wireless link data block, namely a second coding mode, by inquiring the BEP table according to the mean BEP and the cv BEP; the first encoding method and the second encoding method may be the same or different. In the subsequent process, the base station controller encodes the wireless link data block by using the second encoding mode and then sends the encoded wireless link data block to the terminal equipment.
It should be noted that, the steps 14 to 16 are a process of sending a downlink data block of the terminal device; the process of sending uplink data blocks for a terminal device, that is, the process of sending data blocks from the terminal device to a base station controller, is roughly as follows: the base station controller informs the default coding mode to the terminal equipment through the data uplink resource assignment message, the terminal equipment sends the data block to the base station controller according to the default coding mode, when the first measurement period arrives, the base station controller measures mean BEP and cv BEP of the current wireless link data block sent by the terminal equipment, searches a BEP table to determine the coding mode corresponding to the current wireless link data block, then sends the determined coding mode to the terminal equipment through the uplink confirmation message, and the terminal equipment codes the data block according to the new coding mode and sends the data block to the base station controller.
In the above embodiments of the present invention, the implementation manner of the present invention is more enriched and complete by specifically defining the uplink process and the downlink process of the wireless link data block.
Further, as shown in fig. 4, step 12 in the above embodiment of the present invention includes:
step 121, comparing the plurality of bit error rate arithmetic mean values with a preset threshold value to obtain a comparison result; the preset threshold value is related to the wireless environment and can be generally set as a critical value, namely, the mean BEP is greater than the critical value, which indicates that the wireless environment is better; the mean BEP is less than the threshold, indicating a poor wireless environment.
Step 122, if the comparison result shows that the number of arithmetic mean values which are larger than the preset threshold value in the plurality of bit error rate arithmetic mean values is smaller than a first preset value, reducing the first measurement period to obtain a second measurement period; in specific application, the current wireless environment cannot be accurately judged from the size relation between one mean BEP and a preset threshold value, so that a plurality of mean BEPs are adopted to be compared with the preset threshold value; when the number of the mean BEPs larger than the preset threshold value is smaller than P1 (namely a first preset value), the current wireless environment is poor, and the first measurement period is reduced to obtain a second measurement period; the terminal can report the wireless environment change information more quickly, so that the terminal can adjust the coding mode in time, and the accuracy of data transmission is improved.
Step 123, if the comparison result shows that the number of arithmetic mean values which are greater than the preset threshold value in the plurality of bit error rate arithmetic mean values is greater than a second preset value, increasing the first measurement period to obtain a second measurement period; wherein the first preset value is less than or equal to a second preset value. In the specific application, the current wireless environment cannot be accurately judged from the size relation between one mean BEP and a preset threshold value, so that a plurality of mean BEPs are adopted for comparison with the preset threshold value, and when the number of the plurality of mean BEPs, which is larger than the preset threshold value, is larger than P2 (namely a second preset value), the current wireless environment is better, and the first measurement period is increased to obtain a second measurement period; the terminal reduces the speed of reporting the wireless environment information, and transmits data according to a high coding mode, thereby increasing the data transmission efficiency.
It should be noted that the first preset value is less than or equal to the second preset value; when the first preset value is equal to the second preset value, for example, the first preset value is equal to the second preset value and is equal to 5, that is, when the number of mean BEPs larger than the preset threshold value is less than 5, reducing the first measurement period to obtain a second measurement period; when the number of mean BEPs larger than the preset threshold value is larger than 5, increasing the first measurement period to obtain a second measurement period; for the case that the number of mean BEPs greater than the preset threshold is equal to 5, it may be preset to increase the first measurement period or decrease the first measurement period in such a case or keep the first measurement period unchanged, and is not limited specifically herein. When the first preset value is smaller than the second preset value, for example, the first preset value is 5, and the second preset value is 8, that is, when the number of mean BEPs larger than the preset threshold value is smaller than 5, the first measurement period is reduced to obtain a second measurement period; when the number of mean BEPs larger than the preset threshold value is larger than 8, increasing the first measurement period to obtain a second measurement period; when the first measurement period is reduced by more than a preset threshold value, a second measurement period is obtained; when the number of mean BEPs larger than the preset threshold value is larger than 5, increasing the first measurement period to obtain that the number of second measurement periods is larger than or equal to 5 and smaller than or equal to 8, not adjusting the first measurement period, and keeping the first measurement period unchanged, namely the second measurement period is equal to the first measurement period.
The determination method of the second measurement period is specifically described below:
the method comprises the following steps: for the case where the first measurement period needs to be reduced:
namely, step 122 includes:
and 1221, decreasing the first measurement period by a first step value to obtain a second measurement period. Wherein, the first step value is generally 1 or 2, that is, the first measurement period is reduced by 1 unit value or 2 unit values; the meaning of the unit value is consistent with the unit of the first measurement period, for example, the first measurement period is 5min, and the second measurement period is 5min-1min/2 min; the unit of the first measurement period is not limited as long as it is a time unit, and therefore, the unit of the first step value is not limited, and the unit of the first step value coincides with the unit of the first measurement period.
After determining the second measurement period in step 1221, there is still a problem that, for a specific service application, the base station controller may set a minimum measurement period, and if the second measurement period obtained by reducing the first measurement period is smaller than the minimum measurement period, the obtaining method provided in the embodiment of the present invention further includes:
step 1222, if the first measurement period is shorter than a first predetermined period after the first step value is decreased, determining that the second measurement period is the first predetermined period. The first preset period is the minimum measurement period, that is, when the measurement period obtained after the first measurement period is reduced by the first step value is smaller than the minimum measurement period, the minimum measurement period is used as the second measurement period.
In summary, the second measurement period { (the first measurement period — the first step size), the first predetermined period }; and then the BSC sends the second measurement period to the terminal equipment through the uplink data confirmation message, and after the terminal equipment receives the second measurement period, the BSC performs subsequent measurement and report of the wireless environment according to the second measurement period.
The second method comprises the following steps: for the case where the first measurement period needs to be increased:
namely, step 123 includes:
and 1231, increasing the first measurement period by a second step value to obtain a second measurement period. Wherein, the second step value is generally 1 or 2, that is, the first measurement period is increased by 1 unit value or 2 unit values; the meaning of the unit value is consistent with the unit of the first measurement period, for example, the first measurement period is 5min, and then the second measurement period is 5min +1min/2 min; since the unit of the first measurement period is not fixed, and is only a time unit, the unit of the second step value is not limited, and the unit of the second step value is consistent with the unit of the first measurement period.
After the step 1231 is used to determine the second measurement period, there is still a problem that, for a specific service application, the base station controller may set a maximum measurement period, and if the second measurement period obtained by increasing the first measurement period is greater than the maximum measurement period, the obtaining method provided in the embodiment of the present invention further includes:
step 1232, if the first measurement period is longer than a second preset period after the second step value is added, determining that the second measurement period is the second preset period. The second preset period is the maximum measurement period, that is, when the measurement period obtained after the second step value is added to the first measurement period is greater than the maximum measurement period, the maximum measurement period is used as the second measurement period.
In summary, the second measurement period { (the first measurement period + the first step value), the second predetermined period }; and then the BSC sends the second measurement period to the terminal equipment through the uplink data confirmation message, and after the terminal equipment receives the second measurement period, the BSC performs subsequent measurement and report of the wireless environment according to the second measurement period.
The following describes in detail specific steps of the method for acquiring a measurement period according to an embodiment of the present invention with reference to fig. 5:
in the initial phase of service linking, the terminal device obtains the network-side configuration BEP measurement period through the SI13 message, step 51.
Step 52, in the initial BEP measurement period, the terminal device reports mean BEP/cv BEP of the current data block through Downlink data acknowledgement feedback message (egpracket Downlink Ack/Nack), and the base station controller matches the coding mode of the current data block through table lookup according to the mean BEP/cv BEP of the data block reported by the terminal, and performs data transmission.
And step 53, with the continuous transmission of the data blocks, the base station controller performs new BEP measurement period calculation according to the mean BEP value reported by the terminal:
if the number of the MEAN BEP values larger than the default MEAN BEP value (such as 26) in the N MEAN BEP values reported by the terminal is smaller than P1, the BEP measurement period is reduced, so that the terminal can report the wireless environment change information quickly, the coding mode is adjusted in time, and the data transmission accuracy is improved; the new BEP measurement period is MAX { (last BEP measurement period value-measurement period adjustment step length), and minimum BEP measurement period }, wherein the BEP measurement period adjustment step length is 1-2;
if the number of the mean BEP values which are larger than the default mean BEP value in the N mean BEP values reported by the terminal is larger than P2, which indicates that the current wireless environment is better, the BEP measurement period is increased, so that the terminal reduces the times of reporting wireless environment information, transmits data according to a high-coding mode, and increases the data transmission efficiency; the new BEP measurement period is MIN { (the last BEP measurement period value + the measurement period adjustment step length), and the maximum BEP measurement period }, wherein the BEP measurement period adjustment step length is 1-2;
if the number of the mean BEP values which are larger than the default mean BEP value in the N mean BEP values reported by the terminal is larger than or equal to P1 and smaller than or equal to P2, no adjustment is carried out; wherein the default MEAN BEP value, the minimum BEP measurement period, the maximum BEP measurement period, the BEP measurement period adjustment step size, N, P1, P2 can be configured on the base station controller, and P2> P1.
And step 54, carrying the new BEP measurement terminal to the terminal through an uplink data acknowledgement message (Packet uplink ack), and reporting mean/cv BEP measurement according to the new BEP measurement period after the terminal equipment receives the new BEP measurement period value.
In summary, a lot of test data show that the method provided by the embodiment of the present invention dynamically adjusts the BEP period parameters, thereby significantly improving the radio side single slot rate, the high code ratio, and the retransmission rate, and also significantly improving the page download rate of the browsing class of the user, specifically, as shown in table 2 and table 3, different numbers of frame periods of the BEP measurement periods (SACCH [ slow associated control channel ])) are set according to different radio environments, and the page download rate of the application layer browsing class, the radio single channel slot throughput rate, the downlink retransmission rate, and the high-order code ratio are significantly improved.
Figure BDA0000809352030000121
TABLE 2 improvement comparison before and after BEP measurement period optimization 1
Figure BDA0000809352030000131
TABLE 3 improvement comparison before and after BEP measurement period optimization 2
The dynamic self-adaptive adjustment method for realizing the BEP measurement period according to the wireless environment of the user can automatically and quickly meet the change of the wireless environment during terminal data transmission, achieve the dynamic self-adaptive adjustment of the BEP period, ensure that the terminal adjusts the mean/cv BEP value in time in the area with large change of the wireless environment, find a more effective and reliable terminal data transmission coding mode and improve the internet surfing perception of the user.
In order to better achieve the above object, as shown in fig. 6, an embodiment of the present invention further provides an apparatus for acquiring a measurement period, including:
a first receiving module 61, configured to receive an arithmetic mean of bit error rates of multiple radio link data blocks reported by a terminal device according to a first measurement period;
the determining module 62 is configured to compare the plurality of bit error rate arithmetic mean values with a preset threshold, adjust the first measurement period according to a comparison result, and determine a second measurement period;
a sending module 63, configured to send the second measurement period to the terminal device, so that the terminal device reports the bit error rate arithmetic average of the wireless link data blocks according to the second measurement period.
Specifically, in the foregoing embodiment of the present invention, the obtaining apparatus further includes:
the data transmission module is used for transmitting the wireless link data block to the terminal equipment according to a first coding mode;
the second receiving module is used for receiving the bit error rate arithmetic mean value of the current wireless link data block reported by the terminal equipment in the first measuring period and the bit error rate standard variance value of the current wireless link data block;
and the coding determination module is used for determining a second coding mode matched with the current wireless link data block according to the bit error rate arithmetic mean value and the bit error rate standard variance value, and sending the wireless link data block to the terminal equipment by using the second coding mode.
Specifically, in the foregoing embodiment of the present invention, the determining module 62 includes:
the comparison module is used for comparing the bit error rate arithmetic mean values with a preset threshold value to obtain a comparison result;
the first determining submodule is used for reducing the first measuring period to obtain a second measuring period if the comparison result shows that the number of arithmetic mean values which are larger than the preset threshold value in the plurality of bit error rate arithmetic mean values is smaller than a first preset value;
the second determining submodule is used for increasing the first measuring period to obtain a second measuring period if the comparison result shows that the number of arithmetic mean values which are larger than the preset threshold value in the plurality of bit error rate arithmetic mean values is larger than a second preset value; wherein the first preset value is less than or equal to a second preset value.
Specifically, in the foregoing embodiment of the present invention, the first determining sub-module includes:
and the first determining unit is used for reducing the first measuring period by a first step value to obtain a second measuring period.
Specifically, in the foregoing embodiment of the present invention, the obtaining apparatus further includes:
and the second determining unit is used for determining the second measuring period as the first preset period if the first measuring period is smaller than the first preset period after the first step value is reduced.
Specifically, in the foregoing embodiment of the present invention, the second determining sub-module includes:
and the third determining unit is used for increasing the first measuring period by a second step value to obtain a second measuring period.
Specifically, in the foregoing embodiment of the present invention, the obtaining apparatus further includes:
and a fourth determining unit, configured to determine that the second measurement period is the second preset period if the first measurement period is greater than the second preset period after the second step value is added to the first measurement period.
Compared with the BEP measurement reporting mode in the prior art, the embodiment of the invention adds the dynamic self-adaptive BEP measurement period reporting mode, effectively relieves the problems of low speed, high retransmission rate, large fluctuation and the like caused by rapid change of a wireless environment, enhances the robustness of data transmission, greatly improves the network transmission efficiency and promotes the internet surfing perception of a user.
It should be noted that the apparatus for acquiring a measurement period provided in the embodiments of the present invention is an apparatus for acquiring a measurement period by applying the method for acquiring a measurement period, and all embodiments of the method for acquiring a measurement period are applicable to the apparatus, and can achieve the same or similar beneficial effects.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A method for acquiring a measurement period is characterized by comprising the following steps:
receiving the bit error rate arithmetic mean value of a plurality of wireless link data blocks reported by the terminal equipment according to a first measurement period;
comparing the plurality of bit error rate arithmetic mean values with a preset threshold value, adjusting the first measurement period according to the comparison result, and determining a second measurement period;
sending the second measurement period to the terminal equipment, so that the terminal equipment reports the bit error rate arithmetic mean value of the wireless link data block according to the second measurement period;
before receiving the bit error rate arithmetic mean of the plurality of wireless link data blocks reported by the terminal device according to the first measurement period, the obtaining method further includes:
transmitting a wireless link data block to the terminal equipment according to a first coding mode;
receiving the bit error rate arithmetic mean value of the current wireless link data block reported by the terminal equipment in a first measurement period and the bit error rate standard variance value of the current wireless link data block;
determining a second coding mode matched with the current wireless link data block according to the bit error rate arithmetic mean value and the bit error rate standard variance value, and sending the wireless link data block to the terminal equipment by utilizing the second coding mode;
comparing the plurality of bit error rate arithmetic mean values with a preset threshold value, adjusting the first measurement period according to the comparison result, and determining a second measurement period comprises the following steps:
comparing the plurality of bit error rate arithmetic mean values with a preset threshold value to obtain a comparison result;
if the comparison result shows that the number of arithmetic mean values which are larger than the preset threshold value in the plurality of bit error rate arithmetic mean values is smaller than a first preset value, reducing the first measurement period to obtain a second measurement period;
if the comparison result shows that the number of arithmetic mean values which are larger than the preset threshold value in the plurality of bit error rate arithmetic mean values is larger than a second preset value, increasing the first measurement period to obtain a second measurement period; wherein the first preset value is less than or equal to a second preset value.
2. The method according to claim 1, wherein the step of reducing the first measurement period to obtain a second measurement period comprises:
and reducing the first measuring period by a first step value to obtain a second measuring period.
3. The method for acquiring a measurement cycle according to claim 2, further comprising:
and if the first measurement period is smaller than a first preset period after the first step value is reduced, determining the second measurement period as the first preset period.
4. The method according to claim 1, wherein the step of increasing the first measurement period to obtain a second measurement period comprises:
and increasing the first measurement period by a second step value to obtain a second measurement period.
5. The method for acquiring a measurement cycle according to claim 4, further comprising:
and if the first measurement period is greater than a second preset period after the second step value is added, determining the second measurement period as the second preset period.
6. An apparatus for acquiring a measurement period, comprising:
the first receiving module is used for receiving the bit error rate arithmetic mean value of a plurality of wireless link data blocks reported by the terminal equipment according to a first measurement period;
the determining module is used for comparing the bit error rate arithmetic mean values with a preset threshold value, adjusting the first measuring period according to the comparison result and determining a second measuring period;
a sending module, configured to send the second measurement period to the terminal device, so that the terminal device reports the bit error rate arithmetic average of the wireless link data blocks according to the second measurement period;
the acquisition device further comprises:
the data transmission module is used for transmitting the wireless link data block to the terminal equipment according to a first coding mode;
the second receiving module is used for receiving the bit error rate arithmetic mean value of the current wireless link data block reported by the terminal equipment in the first measuring period and the bit error rate standard variance value of the current wireless link data block;
the coding determination module is used for determining a second coding mode matched with the current wireless link data block according to the bit error rate arithmetic mean value and the bit error rate standard variance value and sending the wireless link data block to the terminal equipment by utilizing the second coding mode;
the determining module comprises:
the comparison module is used for comparing the bit error rate arithmetic mean values with a preset threshold value to obtain a comparison result;
the first determining submodule is used for reducing the first measuring period to obtain a second measuring period if the comparison result shows that the number of arithmetic mean values which are larger than the preset threshold value in the plurality of bit error rate arithmetic mean values is smaller than a first preset value;
the second determining submodule is used for increasing the first measuring period to obtain a second measuring period if the comparison result shows that the number of arithmetic mean values which are larger than the preset threshold value in the plurality of bit error rate arithmetic mean values is larger than a second preset value; wherein the first preset value is less than or equal to a second preset value.
7. The apparatus according to claim 6, wherein the first determining submodule includes:
and the first determining unit is used for reducing the first measuring period by a first step value to obtain a second measuring period.
8. The apparatus for acquiring measurement periods according to claim 7, further comprising:
and the second determining unit is used for determining the second measuring period as the first preset period if the first measuring period is smaller than the first preset period after the first step value is reduced.
9. The apparatus according to claim 6, wherein the second determining submodule includes:
and the third determining unit is used for increasing the first measuring period by a second step value to obtain a second measuring period.
10. The apparatus for acquiring measurement periods according to claim 9, further comprising:
and a fourth determining unit, configured to determine that the second measurement period is the second preset period if the first measurement period is greater than the second preset period after the second step value is added to the first measurement period.
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