CN110601798A - Wireless network download rate improving method and device, electronic equipment and storage medium - Google Patents
Wireless network download rate improving method and device, electronic equipment and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
- H04L1/0005—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes applied to payload information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
- H04L1/0011—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding applied to payload information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
Abstract
The invention discloses a wireless network download rate improving method and device, electronic equipment and a storage medium. The wireless network download rate improving method comprises the following steps: acquiring a wireless environment quality value of a wireless network; and adjusting the modulation and coding strategy MCS value corresponding to the wireless network based on the wireless environment quality value and the preset wireless environment quality threshold value to improve the wireless network downloading rate. According to the embodiment of the invention, the MCS value can be correspondingly adjusted according to the quality difference of the wireless environment, the wireless environment is further optimized, and the wireless network downloading rate is further improved.
Description
Technical Field
The invention belongs to the field of wireless networks, and particularly relates to a wireless network download rate improving method and device, electronic equipment and a computer storage medium.
Background
The TD-LTE (Time Division Long Term Evolution) network in the wireless network plays an important supporting role for the mobile internet, the stability of the TD-LTE network is kept, and the improvement of the wireless network download rate of a client is an important measure for improving the user experience.
At present, the solution for increasing the download rate of the wireless network mainly focuses on developing structure optimization. The structure optimization is mainly to screen out the problems of cross-zone coverage, overlapping coverage, weak coverage, inconsistent coverage, poor signal-to-noise ratio, abnormal declination angle, abnormal azimuth angle, indoor distribution leakage and the like, and then optimize through means of azimuth angle and declination angle adjustment, related parameter checking adjustment, rectification, relocation and the like. Therefore, the structure optimization can only perform basic optimization on the wireless environment of the wireless network, and further optimization cannot be performed according to the quality of the current wireless environment, so that the improvement of the wireless network downloading rate is severely restricted.
Therefore, how to increase the wireless network download rate is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the invention provides a wireless network download rate improving method and device, electronic equipment and a computer storage medium, which can improve the wireless network download rate.
In a first aspect, a method for increasing a download rate of a wireless network is provided, where the method includes:
acquiring a wireless environment quality value of a wireless network;
and adjusting the modulation and coding strategy MCS value corresponding to the wireless network based on the wireless environment quality value and the preset wireless environment quality threshold value to improve the wireless network downloading rate.
Optionally, adjusting a modulation and coding strategy MCS value corresponding to the wireless network to increase a wireless network download rate based on the wireless environment quality value and a preset wireless environment quality threshold, including:
judging whether the wireless environment quality value is greater than a preset wireless environment quality threshold value or not;
if yes, the MCS value is increased by using a link quality control algorithm;
if not, the MCS value is adjusted to be lower by using the reduced order algorithm, and the MCS value can be adjusted more accurately.
Optionally, the increasing the MCS value by using the link quality control algorithm includes:
receiving at least one channel quality index CQI value sent by user equipment;
determining an average channel quality index CQI value by using an adaptive modulation coding algorithm;
determining an MCS value according to the average CQI value;
the MCS value is increased by utilizing the link self-adaptive algorithm in the link quality control algorithm, so that the MCS value can be more accurately increased.
Optionally, the method for increasing the download rate of the wireless network further includes:
and switching the transmission mode of the wireless network according to the minimum CQI value in the at least one CQI value and a preset switching threshold value.
Optionally, switching the transmission mode of the wireless network according to a minimum CQI value of the at least one CQI value and a preset switching threshold, including:
judging whether the minimum CQI value is larger than a preset conversion threshold value or not;
if yes, switching the transmission mode of the wireless network to be a transmission mode TM 3;
if not, the transmission mode of the wireless network is switched to the transmission mode TM8, so that the transmission mode of the wireless network can be switched more accurately.
Optionally, the method for increasing the download rate of the wireless network further includes:
the physical uplink shared channel resources and the physical downlink shared channel resources of the wireless network are increased, and the download rate of the wireless network can be further improved.
Optionally, the method for increasing the download rate of the wireless network further includes:
the transmission power of the reference signal is reduced, the downlink data channel power of the wireless network is increased, and the wireless network downloading rate can be further improved.
In a second aspect, a wireless network download rate increasing apparatus is provided, including:
the wireless environment quality value acquisition module is used for acquiring a wireless environment quality value of a wireless network;
and the MCS value adjusting module is used for adjusting the modulation and coding strategy MCS value corresponding to the wireless network based on the wireless environment quality value and the preset wireless environment quality threshold value so as to improve the wireless network downloading rate.
Optionally, the MCS value adjusting module includes:
the wireless environment quality value judging unit is used for judging whether the wireless environment quality value is larger than a preset wireless environment quality threshold value or not;
the MCS value increasing unit is used for increasing the MCS value by utilizing a link quality control algorithm if the wireless environment quality value is greater than a preset wireless environment quality threshold;
and the MCS value reducing unit is used for reducing the MCS value by using a reduced order algorithm if the wireless environment quality value is not greater than the preset wireless environment quality threshold value.
Optionally, the MCS value increasing unit includes:
a channel quality indicator CQI value receiving subunit, configured to receive at least one channel quality indicator CQI value sent by a user equipment;
an average CQI value determining subunit, configured to determine an average channel quality indicator CQI value by using an adaptive modulation and coding algorithm;
an MCS value determining subunit, configured to determine the MCS value according to the average CQI value;
and the MCS value increasing subunit is used for increasing the MCS value by utilizing a link self-adaptive algorithm in the link quality control algorithm.
Optionally, the wireless network download rate increasing apparatus further includes:
and the transmission mode switching module is used for switching the transmission mode of the wireless network according to the minimum CQI value in the at least one CQI value and a preset switching threshold value.
Optionally, the transmission mode switching module includes:
a CQI value judging unit for judging whether the minimum CQI value is greater than a preset switching threshold value;
the first transmission mode switching unit is used for switching the transmission mode of the wireless network into a transmission mode TM3 if the minimum CQI value is greater than a preset switching threshold value;
and a second transmission mode switching unit, configured to switch the transmission mode of the wireless network to the transmission mode TM8 if the minimum CQI value is not greater than the preset switching threshold.
Optionally, the wireless network download rate increasing apparatus further includes:
and the shared channel resource increasing module is used for increasing the physical uplink shared channel resource and the physical downlink shared channel resource of the wireless network.
Optionally, the wireless network download rate increasing apparatus further includes:
and the power adjusting module is used for reducing the transmitting power of the reference signal and increasing the power of a downlink data channel of the wireless network.
In a third aspect, an electronic device is provided, the device comprising: a processor and a memory storing computer program instructions;
the processor, when executing the computer program instructions, implements the wireless network download rate increasing method of the first aspect.
In a fourth aspect, a computer storage medium is provided, where computer program instructions are stored on the computer storage medium, and when executed by a processor, the computer program instructions implement the method for increasing a wireless network download rate according to the first aspect.
The wireless network download rate improving method, the wireless network download rate improving device, the electronic equipment and the computer storage medium can improve the wireless network download rate. The method adjusts the MCS value corresponding to the wireless network based on the wireless environment quality value and the preset wireless environment quality threshold value, namely, the MCS value is correspondingly adjusted according to the quality difference of the wireless environment, so that the wireless environment can be further optimized, and the wireless network downloading rate is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for increasing a download rate of a wireless network according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating an algorithm flow of a scheduler according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a modulation and coding scheme selection according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an ofdm symbol composition according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a wireless network download rate increasing apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
At present, the solution for increasing the wireless network download rate in the related art mainly aims to develop structure optimization. The structure optimization is mainly to screen out the problems of cross-zone coverage, overlapping coverage, weak coverage, inconsistent coverage, poor signal-to-noise ratio, abnormal declination angle, abnormal azimuth angle, indoor distribution leakage and the like, and then optimize through means of azimuth angle and declination angle adjustment, related parameter checking adjustment, rectification, relocation and the like. Therefore, the structure optimization can only perform basic optimization on the wireless environment of the wireless network, and further optimization cannot be performed according to the quality of the current wireless environment, so that the improvement of the wireless network downloading rate is severely restricted.
In order to solve the problem of the prior art, embodiments of the present invention provide a method and an apparatus for increasing a wireless network download rate, an electronic device, and a computer storage medium. First, a method for increasing a download rate of a wireless network according to an embodiment of the present invention is described below. Fig. 1 is a schematic flow chart of a method for increasing a download rate of a wireless network according to an embodiment of the present invention, as shown in fig. 1:
s101, obtaining a wireless environment quality value of a wireless network.
S102, based on the wireless environment quality value and a preset wireless environment quality threshold value, adjusting a Modulation and Coding Scheme (MCS) value corresponding to the wireless network to improve the wireless network downloading rate.
According to the specification of the existing communication protocol, the calculation formula of the wireless network download rate is as follows:
wireless network download rate ═ (transport block size × (N number of subframes + P special subframes)) × N number of streams/5 ms
Wherein, the transport Block Size is TBS; the N subframe number is a downlink subframe number; when the P special subframe is Downlink transmission, the size of a data block transmitted by a Downlink Pilot Time Slot (DwPTS) in the special subframe, and when the P special subframe is uplink transmission, the value of the P special subframe is 0 because the special subframe does not transmit data; and when the N flow number is a downlink double flow, the value is 2, and when the N flow number is an uplink single flow, the value is 1.
Illustratively, when the bandwidth is 20M and the ratio of uplink time slots to downlink time slots is 3:1, the theoretical value of the wireless network download rate is as follows: (75376 (3+ 0.75)). 2/0.005 ═ 113.06Mbps, which is the maximum MCS value, and the number of scheduling times is 800, and 100 Physical Resource Blocks (PRB) are calculated for each scheduling. However, in practical applications, the MCS value and the number of scheduling times are constantly changing depending on the radio environment and the cell capacity.
Based on a calculation formula of the wireless network download rate, optimization can be respectively carried out from four aspects of link quality control, transmission modes, resource and downlink power distribution so as to improve the wireless network download rate.
First, optimization can be made from the aspect of link quality control. The above-mentioned wireless environment quality value is data representing the environment quality condition of the wireless network, and is usually obtained in real time by using an antenna. After the wireless environment quality value is obtained, the corresponding MCS value is adjusted based on the wireless environment quality value and the preset wireless environment quality threshold value so as to improve the wireless network downloading rate.
In order to adjust the MCS value more accurately, in an embodiment, the adjusting the modulation and coding strategy MCS value corresponding to the wireless network based on the radio environment quality value and the preset radio environment quality threshold to increase the wireless network download rate generally includes: judging whether the wireless environment quality value is greater than a preset wireless environment quality threshold value or not; if yes, the MCS value is increased by using a link quality control algorithm; if not, the MCS value is reduced by using a reduced order algorithm. That is, under the condition of good wireless environment quality, a higher MCS value is obtained by utilizing a link quality control algorithm to improve the download rate; under the condition of poor wireless environment quality, the MCS value is reduced through a reduced order algorithm, the robustness of a wireless link is improved, and the external interference resistance is improved so as to improve the downloading rate.
In order to more accurately adjust the MCS value, in an embodiment, the adjusting the MCS value by using the link quality control algorithm generally includes: receiving at least one Channel Quality Index (CQI) value sent by User Equipment (UE); determining an average Channel Quality Indicator (CQI) value by using an Adaptive Modulation Coding (AMC) algorithm; determining an MCS value according to the average CQI value; and the MCS value is increased by utilizing a link self-adaptive algorithm in the link quality control algorithm.
The link adaptation algorithm is one of important algorithms for an initial transport block to reach a target Bit Index display Replication (BIER), and an algorithm flow of a scheduler is as shown in fig. 2, and fig. 2 is a schematic diagram of an algorithm flow of a scheduler according to an embodiment of the present invention. Fig. 2 shows information interaction between a user equipment and a base station (eNB), where the user equipment receives Data blocks (Data blocks) sent by a Packet scheduler (Packet scheduler) in the base station through a Physical Downlink Shared Channel (PDSCH).
On one hand, the ue sends an evaluation reference signal (evaluation reference signals) and a Channel quality indicator report (CQI report) to the base station through a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH), and the base station obtains a reported Channel quality indicator (CQI report)reported) The base station reports the Channel Quality Indicator (CQI) by the formulareported) + channel quality indicator increment (Δ CQI) — connected Channel Quality Indicator (CQI)contected) "get the connected channel quality index, which determines the modulation and coding strategy selection (Select MCS) of the downlink adaptation (DLlink adaptation) through the channel quality index adaptation (CQI adaptation), and the modulation and coding strategy selection in turn determines the packet scheduler.
On the other hand, the ue also transmits decoded transport blocks (Decode transport blocks) and Acknowledgements (ACKs) or Negative Acknowledgements (NACKs) to the base station through a physical uplink control channel or a physical uplink shared channel, so there are two cases: (1) under ACK conditions, the first downlink transport block transmits (1st DL tran)sport block transmissions) Channel Quality Indicator (CQI) boosted by the formula "previous channel quality indicator increment (Δ CQI (t-1)) +stepup) Determining a Δ CQI (t) as a channel quality indicator increment (Δ CQI (t)) ", and setting the Δ CQI (t) as the Δ CQI; (2) under NACK conditions, the first downlink transport block transmits a degraded Channel Quality Indicator (CQI) through the formula "previous channel quality indicator increment (Δ CQI (t-1)) -stepdown) Δ CQI (t) is determined as a channel quality indicator increment (Δ CQI (t)) ", and this Δ CQI (t) is used as the Δ CQI. Wherein Δ CQI ranges in the minimum Channel Quality Indicator (CQI)min) And a maximum Channel Quality Indicator (CQI)max) In the meantime. Under the condition that the wireless environment of the wireless network is good, the initial offset value of the CQI can be increased, for example, the initial offset value of the CQI is set to 3, so that the wireless network download rate can be increased.
As can be seen from the above, the AMC algorithm is used to make a selection of an appropriate modulation and coding strategy in order to improve the system capacity, peak rate and coverage. Fig. 3 is a flowchart of modulation and coding strategy selection, and fig. 3 is a flowchart of modulation and coding strategy selection according to an embodiment of the present invention. As can be seen from fig. 3, the default modulation and coding strategy is activated first, and then it is determined whether the adaptive modulation and coding algorithm is activated, and if not, the default modulation and coding strategy is used; if the HARQ retransmission data is activated, determining whether the HARQ retransmission data is hybrid Automatic Repeat request (HARQ), that is, determining whether the HARQ retransmission data is HARQ retransmission data, and if the HARQ retransmission data is HARQ retransmission data, using a default modulation and coding strategy; if the data is not HARQ retransmission data, an average channel quality indicator value is calculated for the allocated Physical Resource Block (PRB), and a final modulation and coding strategy, that is, an MCS value is determined based on the average channel quality indicator value.
Because the AMC algorithm mainly depends on the CQI information reported by the user equipment, when a transmission block is transmitted for the first time, there is no effective CQI information, the AMC algorithm will select an initial modulation and coding strategy for the user equipment, the initial modulation and coding strategy is determined by a downlink modulation and coding strategy value, and the magnitude of the downlink modulation and coding strategy value will affect the initial entry rate and the rate ramp after switching, so properly increasing the downlink modulation and coding strategy value is helpful to increase the download rate.
In addition to the above optimization from the link quality control class aspect, optimization from the Transmission Mode (TM) aspect may also be performed. In order to switch the transmission mode of the wireless network more accurately, in an embodiment, the method for increasing the download rate of the wireless network may further include: and switching the transmission mode of the wireless network according to the minimum CQI value in the at least one CQI value and a preset switching threshold value. Specifically, whether the minimum CQI value is greater than a preset switching threshold value is determined; if yes, switching the transmission mode of the wireless network to be a transmission mode TM 3; if not, the transmission mode of the wireless network is switched to the transmission mode TM 8. That is, in an environment where the signal-to-noise ratio of the wireless network is greater than a preset threshold, the TM3 transmission mode is used; the TM8 transmission mode is used in an environment where the signal-to-noise ratio of the wireless network is not greater than a preset threshold.
In addition, optimization can be performed from the aspect of resource class so as to improve the wireless network downloading rate. In an embodiment, in order to further increase the download rate of the wireless network, a Physical Uplink Shared Channel (PUSCH) resource and a Physical Downlink Shared Channel (PDSCH) resource of the wireless network may also be added.
And increasing PDSCH resources, that is, increasing the number of symbols of the PDSCH, since the number of symbols of the Downlink subframe is composed of the number of symbols of the PDCCH (Physical Downlink Control Channel) and the number of symbols of the PDSCH, decreasing the number of symbols of the PDCCH increases the number of symbols of the PDSCH correspondingly. For example, statistics M8011C59, M8011C60, and M8011C61, which represent parameters occupied by symbols 1, 2, and 3 of PDCCH, respectively, indicate that the number of actually used symbols is only 1, and the number of symbols is turned off for cells basically not occupied by symbols 2 and 3 is adaptive, and directly specifies that only 1 symbol is occupied.
Accordingly, increasing PUSCH resources may also be achieved by decreasing PUCCH (Physical Uplink Control Channel) resources. The occupation of PUCCH resources is determined by RB (Resource Block) occupied by CQI, SR (scheduling request), ACK (Acknowledgement), NACK (negative Acknowledgement), and the minimum value of the number of users supported by the three resources, that is, the maximum RRC (Radio Resource Control) connection number supported by the cell. By counting the number of users in the cell of the last week, the compatibility with the cell with the rest resources is realized, the RB occupied by CQI and ACK/NACK is reduced, the SR period is reduced, and finally the RB occupied by PUCCH is reduced, so that the PUSCH resource is increased, the uplink rate is improved, and the condition that the downlink rate is limited due to the limitation of the uplink rate is avoided.
Finally, optimization can be performed in terms of downlink power allocation to improve the wireless network download rate. In one embodiment, in order to further increase the download rate of the wireless network, the transmission power of the reference signal may be reduced, and the downlink data channel power of the wireless network may be increased. The transmitting power of the downlink physical channel is based on the transmitting power of the reference signal, and the offset setting or adjustment of the transmitting power of the single-user downlink physical channel is carried out on the basis. The specific execution process comprises the following steps: determining the transmission power of a Cell Reference Signal (Cell RS) and the transmission power of a common channel (i.e. a power offset relative to the RS) according to means such as network planning, and the like, so as to ensure the coverage performance of the common channel; and determining downlink transmission power offset according to CQI information sent by the user equipment, and slowly adjusting the transmission power based on a certain criterion. Specifically, the purpose of downlink power allocation can be achieved by adjusting the PA/PB and increasing the PDSCH power, so that better network coverage is provided for the whole cell. Wherein, PA and PB respectively represent the power ratio of each Orthogonal frequency division Multiplexing symbol (OFDM Symbols ) PDSCH EPRE (energy per resource element) and rsere, that is:
PA＝PDSCH EPRE/RS EPRE；PB＝RS EPRE/PDSCH EPRE
all OFDM Symbols can be divided into two types, i.e. Type a Symbol (Type a Symbol) and Type B Symbol (Type B Symbol), and refer to fig. 4 specifically; wherein, Type A Symbol does not carry the special reference signal of district, and Type B Symbol carries the special reference signal of district.
Based on the calculation formula for PA and PB, let:
pa, (db) in the case of one antenna port or two antenna ports.
p-b is Pb, which is an index number representing the ratio PB/PA.
The p-a and p-b are sent to the user equipment in the signaling, but are not parameters of the system, and are calculated by related parameters. As shown in table 1, the logarithm of the ratio between the power per subcarrier and the RS power of the type a symbol, i.e., the logarithm of the division, is the difference between the two; pb denotes the ratio Pb/PA, i.e. the ratio of the B-type symbols per subcarrier power and the a-type symbols per subcarrier power.
TABLE 1
Different PA/PB values have a large impact on power utilization, and it is necessary to ensure that the power utilization is 100% when adjusting the PA/PB, which is a relationship between the power utilization and the PA/PB settings as shown in table 2:
TABLE 2
As can be seen from Table 2, the optimal values of PA and PB are (0, 0), (-3, 1), (-4.77, 2), (-6, 3) while ensuring 100% power utilization. In the above 4 value ranges, when PA and PB take values of (0, 0), the power of the physical downlink shared channel is maximum, and the power of the reference signal is minimum.
For example, in order to balance the relationship between the coverage and the download rate, the values of PA and PB of the cell with the downlink Signal to Interference plus Noise Ratio (SINR) greater than 15db and the average Reference Signal Receiving Power (RSRP) greater than-78 dbm may be adjusted from (-3, 1) to (0, 0), so as to increase the Power of the physical downlink shared channel without reducing the coverage capability of the system.
The wireless network download rate improving device, the electronic device, and the computer storage medium described below may be referred to as the wireless network download rate improving method described above.
Fig. 5 is a schematic structural diagram of a wireless network download rate increasing apparatus according to an embodiment of the present invention, and as shown in fig. 5, the wireless network download rate increasing apparatus includes:
a wireless environment quality value obtaining module 501, configured to obtain a wireless environment quality value of a wireless network;
the MCS value adjusting module 502 is configured to adjust a modulation and coding strategy MCS value corresponding to the wireless network based on the wireless environment quality value and a preset wireless environment quality threshold, so as to improve a wireless network download rate.
Optionally, the MCS value adjusting module 502 includes:
the wireless environment quality value judging unit is used for judging whether the wireless environment quality value is larger than a preset wireless environment quality threshold value or not;
the MCS value increasing unit is used for increasing the MCS value by utilizing a link quality control algorithm if the wireless environment quality value is greater than a preset wireless environment quality threshold;
and the MCS value reducing unit is used for reducing the MCS value by using a reduced order algorithm if the wireless environment quality value is not greater than the preset wireless environment quality threshold value.
Optionally, the MCS value increasing unit includes:
a channel quality indicator CQI value receiving subunit, configured to receive at least one channel quality indicator CQI value sent by a user equipment;
an average CQI value determining subunit, configured to determine an average channel quality indicator CQI value by using an adaptive modulation and coding algorithm;
an MCS value determining subunit, configured to determine the MCS value according to the average CQI value;
and the MCS value increasing subunit is used for increasing the MCS value by utilizing a link self-adaptive algorithm in the link quality control algorithm.
Optionally, the wireless network download rate increasing apparatus further includes:
and the transmission mode switching module is used for switching the transmission mode of the wireless network according to the minimum CQI value in the at least one CQI value and a preset switching threshold value.
Optionally, the transmission mode switching module includes:
a CQI value judging unit for judging whether the minimum CQI value is greater than a preset switching threshold value;
the first transmission mode switching unit is used for switching the transmission mode of the wireless network into a transmission mode TM3 if the minimum CQI value is greater than a preset switching threshold value;
and a second transmission mode switching unit, configured to switch the transmission mode of the wireless network to the transmission mode TM8 if the minimum CQI value is not greater than the preset switching threshold.
Optionally, the wireless network download rate increasing apparatus further includes:
and the shared channel resource increasing module is used for increasing the physical uplink shared channel resource and the physical downlink shared channel resource of the wireless network.
Optionally, the wireless network download rate increasing apparatus further includes:
and the power adjusting module is used for reducing the transmitting power of the reference signal and increasing the power of a downlink data channel of the wireless network.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, where the electronic device may include a processor 601 and a memory 602 storing computer program instructions.
Specifically, the processor 601 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more Integrated circuits implementing embodiments of the present invention.
Memory 602 may include mass storage for data or instructions. By way of example, and not limitation, memory 602 may include a Hard Disk Drive (HDD), floppy Disk Drive, flash memory, optical Disk, magneto-optical Disk, tape, or Universal Serial Bus (USB) Drive or a combination of two or more of these. Memory 602 may include removable or non-removable (or fixed) media, where appropriate. The memory 602 may be internal or external to the integrated gateway disaster recovery device, where appropriate. In a particular embodiment, the memory 602 is a non-volatile solid-state memory. In a particular embodiment, the memory 602 includes Read Only Memory (ROM). Where appropriate, the ROM may be mask-programmed ROM, Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory or a combination of two or more of these.
The processor 601 reads and executes the computer program instructions stored in the memory 602 to implement any one of the wireless network download rate increasing methods in the above embodiments.
In one example, the electronic device may also include a communication interface 603 and a bus 610. As shown in fig. 6, the processor 601, the memory 602, and the communication interface 603 are connected via a bus 610 to complete communication therebetween.
The communication interface 603 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present invention.
Bus 610 includes hardware, software, or both to couple the components of the online data traffic billing device to each other. By way of example, and not limitation, a bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hypertransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus or a combination of two or more of these. Bus 610 may include one or more buses, where appropriate. Although specific buses have been described and shown in the embodiments of the invention, any suitable buses or interconnects are contemplated by the invention.
The electronic device may execute the wireless network download rate increasing method in the embodiment of the present invention, so as to implement the wireless network download rate increasing method described in conjunction with fig. 1 and fig. 5.
In addition, in combination with the method for improving the wireless network download rate in the above embodiment, an embodiment of the present invention may provide a computer storage medium to implement. The computer storage medium having computer program instructions stored thereon; the computer program instructions, when executed by a processor, implement any of the wireless network download rate increasing methods of the above embodiments.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
As described above, only the specific embodiments of the present invention are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (10)
1. A wireless network download rate increasing method is characterized by comprising the following steps:
acquiring a wireless environment quality value of a wireless network;
and adjusting the modulation and coding strategy MCS value corresponding to the wireless network based on the wireless environment quality value and a preset wireless environment quality threshold value to improve the wireless network downloading rate.
2. The method of claim 1, wherein the adjusting the Modulation and Coding Scheme (MCS) value corresponding to the wireless network to increase the wireless network download rate based on the wireless environment quality value and a preset wireless environment quality threshold comprises:
judging whether the wireless environment quality value is greater than the preset wireless environment quality threshold value or not;
if yes, the MCS value is increased by using a link quality control algorithm;
if not, the MCS value is reduced by using a reduced order algorithm.
3. The method of claim 2, wherein the increasing the MCS value using a link quality control algorithm comprises:
receiving at least one channel quality index CQI value sent by user equipment;
determining an average channel quality index CQI value by using an adaptive modulation coding algorithm;
determining the MCS value according to the average CQI value;
and utilizing a link self-adaptive algorithm in the link quality control algorithm to increase the MCS value.
4. The method of claim 3, further comprising:
and switching the transmission mode of the wireless network according to the minimum CQI value in the at least one CQI value and a preset switching threshold value.
5. The method for increasing the download rate of the wireless network according to claim 4, wherein the switching the transmission mode of the wireless network according to the minimum CQI value of the at least one CQI value and a preset switching threshold comprises:
judging whether the minimum CQI value is larger than the preset switching threshold value or not;
if so, switching the transmission mode of the wireless network to be a transmission mode TM 3;
if not, switching the transmission mode of the wireless network to be a transmission mode TM 8.
6. The method for increasing the download rate of a wireless network according to claim 1, further comprising:
and increasing the physical uplink shared channel resource and the physical downlink shared channel resource of the wireless network.
7. The method for increasing the download rate of a wireless network according to claim 1, further comprising:
and reducing the transmitting power of the reference signal and increasing the power of a downlink data channel of the wireless network.
8. A wireless network download rate increase apparatus, comprising:
the wireless environment quality value acquisition module is used for acquiring a wireless environment quality value of a wireless network;
and the MCS value adjusting module is used for adjusting the modulation and coding strategy MCS value corresponding to the wireless network based on the wireless environment quality value and a preset wireless environment quality threshold value so as to improve the wireless network downloading rate.
9. An electronic device, characterized in that the device comprises: a processor and a memory storing computer program instructions;
the processor, when executing the computer program instructions, implements the wireless network download rate increasing method as recited in any of claims 1-7.
10. A computer storage medium having computer program instructions stored thereon, which when executed by a processor implement the wireless network download rate increase method of any of claims 1-7.
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