CN110856198B - Method for improving wireless performance of router during weak signal user access - Google Patents

Method for improving wireless performance of router during weak signal user access Download PDF

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Publication number
CN110856198B
CN110856198B CN201911177686.0A CN201911177686A CN110856198B CN 110856198 B CN110856198 B CN 110856198B CN 201911177686 A CN201911177686 A CN 201911177686A CN 110856198 B CN110856198 B CN 110856198B
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wireless
wifi router
resources
signal quality
channel
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CN110856198A (en
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魏钒
全成根
吴燕秋
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Taicang T&W Electronics Co Ltd
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Taicang T&W Electronics Co Ltd
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Priority to PCT/CN2020/076568 priority patent/WO2021103328A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/22—Negotiating communication rate

Abstract

The invention discloses a method for improving wireless performance of a router when a weak signal user accesses, which comprises the following steps: when the WIFI router enables OFDMA, channel competition is carried out among wireless users by adopting a channel competition method, and the channel competition method specifically comprises the following steps: step 1, when a wireless user accesses a WIFI router, the WIFI router detects and confirms the signal quality level of the wireless user; step 2, the wireless user carries out channel competition; step 3, the WIFI router judges whether the channel RU resources acquired by the wireless user need to be limited or not; and 4, the WIFI router limits the RU resources of the wireless users according to regulations and redistributes the RU resources exceeding the wireless users. According to the WIFI router and the method, the channel competition method is optimized, and the condition that the overall performance of the WIFI router is reduced due to the fact that weak signal users occupy channel resources for a long time is avoided.

Description

Method for improving wireless performance of router during weak signal user access
Technical Field
The invention relates to the technical field of communication, in particular to a method for improving wireless performance of a router when a weak signal user accesses.
Background
When the WIFI 6 router is not OFDMA (orthogonal frequency division multiple Access) enabled, as shown in FIG. 1, the wireless user uses IEEE Std 802.11TM-2016 protocol-defined CSMA/CA mechanism to compete for wireless channel resources, in DCF mode by carrier sense and collision avoidance mechanism before data packet transmission, STA detecting link idle time>When the user selects the random number competition window, the value range is [0,31 ]]And after monitoring that the channel is idle for one DIFS time, subtracting 1 from the value of the contention window, and directly occupying wireless resources to send data after the contention window is subtracted to 0.
When a weak signal user accesses a WIFI router, once a channel is preempted, the weak signal user generally sends data at a lower rate, so that the transmission time is longer than that of a normal user, and in an extreme case, channel resources are monopolized by the weak signal user, so that the overall performance of the WIFI router is seriously reduced, and the user experience is very poor.
WIFI 6 router OFDMA (orthogonal frequency) enablementTdma), the wireless subscriber uses IEEE p802.11ax as shown in fig. 2TMAccording to the wireless channel competition method defined in the/D3.0 protocol, multiple users can occupy different RUs of the channel at the same time without waiting for DIFS time. And (4) the user negotiates with the router, and if the vacant RU resources exist, the user directly occupies the router. After the weak signal user accesses, a part of RU resources can be randomly preempted (36 RUs can be occupied at most in the 80M mode), transmission time required for sending the same amount of data by the weak signal can be greatly increased, so that channel resources can be occupied by the weak signal user for a long time, but only a small amount of data is sent, the overall performance of the WIFI router is seriously reduced, and user experience is very poor.
Disclosure of Invention
The present invention provides a method for improving the wireless performance of a router when a weak signal user accesses to the router.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a method for improving wireless performance of a router when a weak signal user accesses, comprising the following steps: when the WIFI router enables OFDMA, channel competition is carried out among wireless users by adopting a channel competition method, and the channel competition method specifically comprises the following steps:
step 1, when a wireless user accesses a WIFI router, the WIFI router detects the signal quality of the wireless user and confirms the signal quality grade of the wireless user according to the negotiation rate of the wireless user and the WIFI router;
step 2, the wireless user carries out channel competition;
step 3, the WIFI router collects channel RU resources acquired by the wireless user and judges whether the channel RU resources acquired by the wireless user need to be limited or not according to the signal quality level of the wireless user;
and 4, when the judgment result shows that the RU resources of the channels acquired by the wireless users need to be limited, limiting the RU resources of the wireless users according to the regulations by the WIFI router, and reallocating the RU resources beyond the wireless users.
Furthermore, when the wireless user accesses the WIFI router, the wireless user accesses the WIFI router according to IEEE P802.11axTMthe/D3.0 protocol negotiates with the WIFI router for speed, data transmission is carried out by using the negotiated speed, the speed negotiated by the wireless user with weak signals and the WIFI router is also lower, and the speed negotiated by the wireless user with strong signals and the WIFI router is also higher.
Further, the signal quality grades of the wireless users are divided into three grades, namely high grade, medium grade and low grade, and the negotiation rate of the high grade signal quality is MCS8-MCS 11; the negotiation rate of the medium-level signal quality is MCS3-MCS 7; the negotiation rate of the low-level signal quality is MCS0-MCS 2;
further, in step 3, when determining whether to limit the channel RU resources acquired by the wireless user according to the signal quality level of the wireless user, the rule is as follows: the channel RU resources allocated to the wireless users with high signal quality are not limited, and the channel RU resources allocated to the wireless users with medium signal quality and the wireless users with low signal quality need to be limited.
Further, in step 4, when the WIFI router restricts RU resources of the wireless user according to a specification, the specification specifically includes: wireless users of medium level signal quality limit the allocated RU resources to 3-10 RUs, and wireless users of low level signal quality limit the allocated RU resources to 1-3 RUs.
Compared with the prior art, the invention has the following beneficial effects:
when the WIFI router does not start OFDMA (orthogonal frequency division multiple access), the wireless users with weak signals can be kicked off the line by setting the signal intensity threshold on the router, so that the condition that the overall performance of the WIFI router is reduced due to the fact that the weak signal users occupy channel resources for a long time is avoided; when the WIFI router enables OFDMA (orthogonal frequency division multiple access), the method optimizes the channel competition method, classifies the signal quality of the wireless users, limits the channel resources of medium-grade and low-grade signal quality, and avoids the condition that the overall performance of the WIFI router is reduced due to the fact that weak signal users occupy the channel resources for a long time.
Drawings
Fig. 1 illustrates a channel contention method of a WIFI router when OFDMA (orthogonal frequency division multiple access) is not enabled in the prior art;
fig. 2 is a channel contention method of a WIFI router when OFDMA (orthogonal frequency division multiple access) is enabled in the prior art;
fig. 3 is a schematic diagram illustrating a channel contention method of a WIFI router when OFDMA (orthogonal frequency division multiple access) is enabled according to an embodiment of the present invention;
FIG. 4 is a flow chart of one embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
A method for improving wireless performance of a router when a weak signal user accesses as shown in fig. 4 comprises the following steps: when the WIFI router does not enable OFDMA (orthogonal frequency division multiple access), adding a configuration item on WIFI router software, setting a signal strength threshold, and when a user signal is weaker than the threshold, automatically kicking a weak signal off line by the WIFI router;
when the WIFI router enables OFDMA (orthogonal frequency division multiple access), the wireless users perform channel contention by using the channel contention method shown in fig. 3, where the channel contention method specifically includes the following steps:
step 1, when a wireless user accesses a WIFI router, firstly, the wireless user accesses the WIFI router according to IEEE P802.11axTMthe/D3.0 protocol negotiates with the WIFI router for speed, and performs data transmission by using the negotiated speed, the speed negotiated by the wireless user with weak signal with the WIFI router is also lower, and the speed negotiated by the wireless user with strong signal with the WIFI router is also higher; then, the WIFI router detects the signal quality of the wireless user, and confirms the signal quality grade of the wireless user according to the negotiation rate of the wireless user and the WIFI router; what is needed isThe signal quality grade of the wireless user is divided into three grades of high grade, medium grade and low grade, and the negotiation rate of the high grade signal quality is MCS8-MCS 11; the negotiation rate of the medium-level signal quality is MCS3-MCS 7; the negotiation rate of the low-level signal quality is MCS0-MCS 2;
step 2, adopting IEEE P802.11ax by wireless userTMCarrying out channel competition by a wireless channel competition method defined in the/D3.0 protocol; (maximum possible 36 RU resources per wireless user in 80M mode);
step 3, the WIFI router collects channel RU resources acquired by the wireless user and judges whether the channel RU resources acquired by the wireless user need to be limited or not according to the signal quality level of the wireless user; the channel RU resources allocated to the wireless users with high signal quality are not limited, and the channel RU resources allocated to the wireless users with medium signal quality and the wireless users with low signal quality need to be limited.
Step 4, when the judgment result indicates that the RU resources of the channel acquired by the wireless user need to be limited, firstly, the WIFI router limits the RU resources of the wireless user according to a rule, where the rule specifically is: wireless users with medium-grade signal quality limit the allocated RU resources to 3-10 RUs, and wireless users with low-grade signal quality limit the allocated RU resources to 1-3 RUs; and then, the WIFI router reallocates the RU resources exceeded by the wireless user, for example, when the RU resources of the wireless user with low-level signal quality exceed 3 RUs, only 3 RUs are reserved for the wireless user with low-level signal quality, and the rest are reallocated, when the RU resources of the wireless user with medium-level signal quality exceed 10 RUs, only 10 RUs are reserved for the wireless user with medium-level signal quality, and the rest are reallocated.
The embodiments described above are only preferred embodiments of the invention and are not exhaustive of the possible implementations of the invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.

Claims (1)

1. A method for improving wireless performance of a router when a weak signal user accesses, comprising the steps of: when the WIFI router enables OFDMA, channel competition is carried out among wireless users by adopting a channel competition method, and the channel competition method specifically comprises the following steps:
step 1, when a wireless user accesses a WIFI router, the WIFI router detects the signal quality of the wireless user and confirms the signal quality grade of the wireless user according to the negotiation rate of the wireless user and the WIFI router;
step 2, the wireless user carries out channel competition;
step 3, the WIFI router collects channel RU resources acquired by the wireless user and judges whether the channel RU resources acquired by the wireless user need to be limited or not according to the signal quality level of the wireless user;
step 4, when the judgment result shows that the RU resources of the channels acquired by the wireless users need to be limited, the WIFI router limits the RU resources of the wireless users according to the regulations and reallocates the RU resources exceeding the wireless users;
in step 3, when judging whether to limit the channel RU resource acquired by the wireless user according to the signal quality level of the wireless user, the rule is as follows: channel RU resources allocated to wireless users with high-level signal quality are not limited, and channel RU resources allocated to wireless users with medium-level signal quality and wireless users with low-level signal quality need to be limited;
in step 4, when the WIFI router restricts RU resources of the wireless user according to a specification, the specification specifically includes: wireless users with medium-grade signal quality limit the allocated RU resources to 3-10 RUs, and wireless users with low-grade signal quality limit the allocated RU resources to 1-3 RUs;
in step 4, when re-allocating the RU resources exceeded by the wireless user, the method includes: when the RU resources of the wireless users with low level signal quality exceed 3 RUs, only 3 RUs are reserved for the wireless users with low level signal quality, and the rest are reallocated, and when the RU resources to be allocated by the wireless users with medium level signal quality exceed 10 RUs, only 10 RUs are reserved for the wireless users with medium level signal quality, and the rest are reallocated;
when the WIFI router does not enable OFDMA, adding a configuration item on the WIFI router software, setting a signal intensity threshold, and when a user signal is weaker than the threshold value, automatically kicking off a weak signal by the WIFI router;
when the wireless user accesses the WIFI router, the wireless user accesses the WIFI router according to IEEE P802.11axTMthe/D3.0 protocol negotiates with the WIFI router for speed, and performs data transmission by using the negotiated speed, the speed negotiated by the wireless user with weak signal with the WIFI router is also lower, and the speed negotiated by the wireless user with strong signal with the WIFI router is also higher;
the signal quality grades of the wireless users are divided into three grades of high grade, medium grade and low grade, and the negotiation rate of the high grade signal quality is MCS8-MCS 11; the negotiation rate of the medium-level signal quality is MCS3-MCS 7; the negotiated rates for low level signal quality are MCS0-MCS 2.
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Citations (3)

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CN107635272A (en) * 2017-10-12 2018-01-26 北京小米移动软件有限公司 Control method of electronic device and device
CN108541026A (en) * 2018-03-28 2018-09-14 烽火通信科技股份有限公司 Method and system when according to STA negotiated speed reasonable distribution skies

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Publication number Priority date Publication date Assignee Title
US8036664B2 (en) * 2006-09-22 2011-10-11 Kineto Wireless, Inc. Method and apparatus for determining rove-out
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Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
CN103326844A (en) * 2013-06-19 2013-09-25 成都飞鱼星科技开发有限公司 Resource distribution method based on 802.11 protocol mixed mode
CN107635272A (en) * 2017-10-12 2018-01-26 北京小米移动软件有限公司 Control method of electronic device and device
CN108541026A (en) * 2018-03-28 2018-09-14 烽火通信科技股份有限公司 Method and system when according to STA negotiated speed reasonable distribution skies

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