CN106900076A - The update method and relevant device of a kind of random access parameter - Google Patents

The update method and relevant device of a kind of random access parameter Download PDF

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Publication number
CN106900076A
CN106900076A CN201610460511.0A CN201610460511A CN106900076A CN 106900076 A CN106900076 A CN 106900076A CN 201610460511 A CN201610460511 A CN 201610460511A CN 106900076 A CN106900076 A CN 106900076A
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China
Prior art keywords
website
random access
stochastic accessing
access point
feedback information
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CN201610460511.0A
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CN106900076B (en
Inventor
李彦淳
李云波
罗毅
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2016/106070 priority Critical patent/WO2017101629A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the present invention discloses the update method and relevant device of a kind of random access parameter, and wherein method comprises the following steps：Feedback information of the access point according to entrained by the Stochastic accessing bag that at least one website being properly received sends, update current random access parameter, wherein, one Stochastic accessing bag be by a website according to the selection of current random access parameter can the resource of Stochastic accessing carry out Stochastic accessing when it is transmitted, a Stochastic accessing bag carries a feedback information for website；Access point sends the random access parameter after updating to targeted sites, so that targeted sites initiate Stochastic accessing according to the random access parameter after renewal, wherein, targeted sites are the whole websites or part website in access point network coverage.Using the present invention, random access parameter can be updated according to the feedback information of Stochastic accessing bag so that random access parameter is more matched with current network environment.

Description

The update method and relevant device of a kind of random access parameter
Technical field
The present invention relates to communication technical field, more particularly to a kind of random access parameter update method and relevant device.
Background technology
, it is necessary to initiating random access procedure before carrying out data transmission between user equipment and network side equipment.For with Machine access procedure, network side equipment can to multiple user equipmenies provide it is multiple can Stochastic accessing resource, each user equipment profit Resource is randomly choosed with random access parameter to be accessed, generated specifically in the range of being determined by random access parameter random Number, selects resource to be accessed according to random number.If user equipment receives the acknowledgement frame of network side equipment transmission, user is represented The success of equipment Stochastic accessing, and then data can be transmitted.However, due to user equipment be from multiple can in the resource of Stochastic accessing with Machine selection resource, therefore can there is the situation that two or more user equipmenies select same resource, can thus occur Random access collision, causes random access failure.
If user equipment do not receive website transmission acknowledgement frame, then it is assumed that user equipment random access failure, with In the case of machine access failure, prior art expands random access parameter using increase constant or by the way of being multiplied by coefficient, uses Family equipment selects resource to be accessed again according to the random access parameter for expanding.But can Stochastic accessing resource number In the case that amount is certain, it is corresponding with resource can Stochastic accessing value be limited, by expanding random access parameter, can reduce User equipment degree of contention, but when random access parameter is excessive, the probability that user equipment is successfully selected resource reduces, and causes money The source free time increases so that the wasting of resources, reduces Stochastic accessing efficiency.
The content of the invention
The embodiment of the present invention provides the update method and relevant device of a kind of random access parameter, can be according to Stochastic accessing The feedback information of bag updates random access parameter so that random access parameter is more matched with current network environment.
Embodiment of the present invention first aspect provides a kind of update method of random access parameter, including：Access point according to The feedback information entrained by Stochastic accessing bag that one or more website being properly received sends, updates current Stochastic accessing Parameter, and whole websites in network coverage or part website send the random access parameter after updating, so that all Website or part website carry out Stochastic accessing according to the random access parameter after renewal.Wherein, a Stochastic accessing bag is by one What individual website sent, and website be according to the selection of current random access parameter can Stochastic accessing the Stochastic accessing that sends of resource Bag.Access point knows the current Network Environment Status on Stochastic accessing by the feedback information of one or more website, And then renewable random access parameter improves random access parameter renewal can more match with current network environment Accuracy.
In a kind of possible implementation of first aspect, access point obtains Stochastic accessing successfully one or more websites Before the Stochastic accessing bag of transmission, also include：Access point broadcast for indicate comprising one or more can Stochastic accessing money The RACH in source, after any one website receives trigger frame, the website can by can Stochastic accessing resource Send Stochastic accessing bag.
When the Stochastic accessing bag of any one website transmission is received, access point is anti-to the website for sending Stochastic accessing bag The acknowledgement frame that the Stochastic accessing bag is properly received for instruction is presented, correspondingly, if website receives acknowledgement frame, the website is represented Can start to transmit data to be transmitted.
In a kind of possible implementation of first aspect, feedback information is used to represent the feelings of the current Stochastic accessing of website Condition, it may for example comprise attempt the number of times for accessing and the number of times being successfully accessed；Or, including attempt the number of times for accessing；Or, including Retransmit and attempt the number of times for accessing and the number of times being successfully accessed；Or, including retransmit the number of times for attempting accessing；Or, it is successfully accessed Number of times and the number of times for attempting accessing ratio, and then can be obtained with the ratio of number of times for attempting access according to the number of times being successfully accessed The Stochastic accessing probability of success currently is obtained, is easy to allow access point to know current network environment, and then determine and current network ring The random access parameter that border matches.Wherein, when the feedback information includes the number of times for attempting accessing, described access point record The number of times being successfully accessed of the website of the Stochastic accessing bag is sent, with the number of times for calculating the number of times being successfully accessed with attempt accessing Ratio.
In a kind of possible implementation of first aspect, access point sends according to one or more websites being properly received Stochastic accessing bag entrained by feedback information update current random access parameter when specifically perform：Access point is obtained and is properly received One or more websites send Stochastic accessing bag entrained by feedback information, when feedback information include attempt access number of times During with the number of times being successfully accessed, or, when feedback information includes the number of times for attempting accessing；Or, when the feedback information bag When including the ratio of the number of times that the number of times being successfully accessed is accessed with trial, it is determined that the number of times being successfully accessed and the number of times for attempting accessing The average value of ratio, and then worked as with the average value renewal of the ratio of the number of times for attempting accessing according to the number of times being successfully accessed for determining Preceding random access parameter.Current random access parameter can include competition window values or access probability, for different Stochastic accessings Parameter uses different update modes, for example, when the number of times being successfully accessed is big with the average value of the ratio of the number of times for attempting accessing When first threshold, access point reduces competition window values according to the first preset ratio；When the number of times being successfully accessed and trial access When the average value of the ratio of number of times is less than Second Threshold, access point is according to the 3rd preset ratio increase competition window values；Or, treat as When the number of times that work(is accessed is more than first threshold with the average value of the ratio of the number of times for attempting accessing, access point is according to the second default ratio Example increase access probability；When the number of times being successfully accessed is less than Second Threshold with the average value of the ratio of the number of times for attempting accessing, Access point reduces access probability according to the 4th preset ratio.By the number of times and the ratio of the number of times for attempting accessing that are successfully accessed The network environment that average value reaction website is presently in, and then obtain the random access parameter more matched with network environment.
In a kind of possible implementation of first aspect, access point sends according to one or more websites being properly received Stochastic accessing bag entrained by feedback information update current random access parameter when specifically perform：Access point is obtained and is properly received One or more websites send Stochastic accessing bag entrained by feedback information, when feedback information include attempt access number of times During with the number of times being successfully accessed, or, when feedback information includes the number of times for attempting accessing, determine that the success of each website connects The ratio of the number of times that the number of times for entering is accessed with trial；Access point connects according to the success of current random access parameter and each website The number of times for entering and the ratio of the number of times for attempting accessing, calculate competition website quantity, and according to the competition website quantity for calculating, update Current random access parameter, the current Stochastic accessing situation of each website is included due to feedback information, so according to feedback letter Ceasing the random access parameter for updating can more match with current network environment.
And access point updates current random access parameter, current random access parameter according to the competition website quantity for calculating Competition window values or access probability can be included, for different random access parameters, the update mode for being used is different.For example, If current random access parameter is competition window values, access point updates the competition using the corresponding numerical value of the competition website quantity Window values.And for example if current random access parameter is access probability, access point is using the corresponding numerical value for competing website quantity Inverse update the access probability.
Embodiment of the present invention second aspect provides the update method of another random access parameter, including：Website is received The random access parameter that access point sends, when website initiates Stochastic accessing, website is using the random access parameter choosing for receiving Select can Stochastic accessing resource send carry website feedback information Stochastic accessing bag.The random of feedback information is carried by sending Access package, is easy to after access point is successfully received Stochastic accessing bag know the situation and net of the current Stochastic accessing of website Network environmental aspect, so that access point further updates current random access parameter.
In a kind of possible implementation of second aspect, before website receives the random access parameter of access point broadcast, Also include：Website receives the trigger frame of access point broadcast, and trigger frame is used to indicating can Stochastic accessing comprising one or more The RACH of resource.
In a kind of possible implementation of second aspect, feedback information is used to represent the feelings of the current Stochastic accessing of website Condition, it may for example comprise attempt the number of times for accessing and the number of times being successfully accessed；Or, including attempt the number of times for accessing；Or, including Retransmit and attempt the number of times for accessing and the number of times being successfully accessed；Or, including retransmit the number of times for attempting accessing；Or, it is successfully accessed Number of times and the number of times for attempting accessing ratio, and then can be obtained with the ratio of number of times for attempting access according to the number of times being successfully accessed The Stochastic accessing probability of success currently is obtained, is easy to allow access point to know current network environment, and then determine and current network ring The random access parameter that border matches.
In a kind of possible implementation of second aspect, when website initiates Stochastic accessing, website uses what is received It is random connect parameter value selection can Stochastic accessing resource send Stochastic accessing bag after, also perform step：When in Preset Time model When the instruction access point that access point feedback is not received in enclosing is properly received the acknowledgement frame of Stochastic accessing bag, website updates feedback letter Breath, and the Stochastic accessing bag for carrying the feedback information after updating is resend to access point.
The embodiment of the present invention third aspect provide a kind of access point, the access point have realize first aspect provide with The function of the update method of machine access parameter.The function can be realized by hardware, it is also possible to be performed by hardware corresponding Software realizes that the hardware or software include the update method of one or more random access parameter provided with first aspect The corresponding unit of function.
In a possible design, the structure of access point includes processor, input equipment and output equipment, the place Reason device is that access point performs corresponding function in first aspect.Input equipment and output equipment be used to supporting access point and website it Between communication, output equipment sends involved information or instruction in first aspect to website, and input equipment receives first aspect In the information that sends of involved website or instruction.Described access point also includes memory, and the memory is used for and processor Coupling, it preserves the necessary programmed instruction of access point and data.
Embodiment of the present invention fourth aspect provides a kind of computer-readable storage medium, and the computer-readable storage medium is stored with meter Calculation machine program, when the computer program in computer-readable storage medium is read into computer, enables to computer to complete the The Overall Steps of the update method of the random access parameter on the one hand providing.
The aspect of the embodiment of the present invention the 5th provides a kind of website, and the website is random with realizing that second aspect is provided The function of the update method of access parameter.The function can be realized by hardware, it is also possible to be performed by hardware corresponding soft Part realizes that the hardware or software include the update method of one or more random access parameter provided with second aspect The corresponding unit of function.
In a possible design, the structure of website includes processor, input equipment and output equipment, the treatment Device is that website performs corresponding function in second aspect.Input equipment and output equipment are used between support site and access point Communication, output equipment is received in second aspect to information involved in access point transmission second aspect or instruction, input equipment Information or instruction that involved access point sends.The website also includes memory, and the memory is used for and processor coupling Close, it preserves the necessary programmed instruction of website and data.
The aspect of the embodiment of the present invention the 6th provides another computer-readable storage medium, and the computer-readable storage medium is stored with Computer program, when the computer program in computer-readable storage medium is read into computer, enables to computer to complete The Overall Steps of the update method of the random access parameter that second aspect is provided.
In embodiments of the present invention, access point is connect at random by what is sent according to one or more website being properly received Enter the feedback information entrained by bag, update current random access parameter, due to feedback information include each website it is current with Machine accesses situation, therefore the random access parameter that access point updates according to feedback information is more matched with current network environment, The accuracy of random access parameter renewal is improve, and then improves the utilization rate of resource.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be attached to what is used needed for embodiment Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this area For those of ordinary skill, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of network architecture diagram schematic diagram；
Fig. 2 is a kind of schematic flow sheet of the update method of random access parameter provided in an embodiment of the present invention；
Fig. 3 is the schematic flow sheet of the update method of another random access parameter provided in an embodiment of the present invention；
Fig. 4 a are a kind of schematic flow sheets of step S308 provided in an embodiment of the present invention；
Fig. 4 b are a kind of schematic flow sheets of step S308 provided in an embodiment of the present invention；
Fig. 4 c are another schematic flow sheets of step S308 provided in an embodiment of the present invention；
Fig. 5 is a kind of structural representation of access point provided in an embodiment of the present invention；
Fig. 6 a are a kind of structural representations of updating block provided in an embodiment of the present invention；
Fig. 6 b are another structural representations of updating block provided in an embodiment of the present invention；
Fig. 7 is a kind of structural representation of website provided in an embodiment of the present invention；
Fig. 8 is the structural representation of another access point provided in an embodiment of the present invention；
Fig. 9 is the structural representation of another website provided in an embodiment of the present invention；
Figure 10 is the schematic flow sheet of the update method of another random access parameter provided in an embodiment of the present invention；
Figure 11 is the schematic flow sheet of the update method of another random access parameter provided in an embodiment of the present invention；
Figure 12 is the schematic flow sheet of the update method of another random access parameter provided in an embodiment of the present invention；
Figure 13 a are a kind of schematic flow sheets of step S502 in Figure 10 provided in an embodiment of the present invention；
Figure 13 b are another schematic flow sheets of step S502 in Figure 10 provided in an embodiment of the present invention；
Figure 14 is a kind of exemplary plot of Stochastic accessing provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not paid Embodiment, belongs to the scope of protection of the invention.
It should be noted that the term for using in embodiments of the present invention is the mesh only merely for description specific embodiment , and it is not intended to be limiting the present invention.One kind of singulative used in the embodiment of the present invention and appended claims, It is described to be also intended to include most forms with this, unless context clearly shows that other implications.It is also understood that used herein Term and/or refer to and may be combined comprising one or more associated any or all of project listed.In addition, this hair Term first, second, third and fourth in bright specification and claims and above-mentioned accompanying drawing etc. is for distinguishing difference Object, rather than for describing particular order.Additionally, term include and with and their any deformations, it is intended that covering Non-exclusive includes.Process, method, system, product or the equipment for for example containing series of steps or unit are not limited to The step of having listed or unit, but alternatively also include the step of not listing or unit, or alternatively also include for this A little processes, method, product or other intrinsic steps of equipment or unit.
In order to be best understood from a kind of update method of random access parameter disclosed in the embodiment of the present invention, below first to this hair The applicable network architecture of bright embodiment is described.Fig. 1 is referred to, is that a kind of network architecture is illustrated disclosed in the embodiment of the present invention Figure.In the network architecture shown in Fig. 1, access point and multiple websites can be included, for example, website 1, website 2, website 3rd ..., website N.The technical scheme of the embodiment of the present invention can apply to various communication systems, for example：Global system for mobile telecommunications (Global System of Mobile communication, GSM) system, CDMA (Code Division Multiple Access, CDMA) system, WCDMA (Wideband Code Division Multiple Access, WCDMA) system, GPRS (General Packet Radio Service, GPRS), drill for a long time Enter (Long Term Evolution, LTE) system, LTE FDDs (Frequency Division Duplex, FDD) system System, LTE time division duplexs (Time Division Duplex, TDD) etc..
In embodiments of the present invention, website (Station, STA) can include but is not limited to terminal (Terminal), move Dynamic terminal (Mobile Terminal) etc., the website can be communicated through wireless access network with one or more core nets, example Such as, website can be cell phone, panel computer, personal digital assistant (Personal Digital Assistant, PDA), Mobile internet device (Mobile Internet Device, MID), Intelligent worn device (such as intelligent watch, Intelligent bracelet) Etc. all kinds of terminal devices, they are with wireless access network exchange data.
In embodiments of the present invention, access point can be base station (the Base Transceiver in GSM or CDMA Station, BTS), or WCDMA in base station (NodeB, NB), can also be the evolved base station in LTE (Evolutional Node B, E-NodeB), the embodiment of the present invention is not limited.
In the network architecture shown in Fig. 1, access point is random according to one or more website transmission being properly received Feedback information entrained by access package, updates current random access parameter, wherein, Stochastic accessing bag be by a website by According to the selection of current random access parameter can the resource of Stochastic accessing carry out Stochastic accessing when it is transmitted, a Stochastic accessing bag is taken With a feedback information for website, access point to the whole websites in network coverage or part website send after updating with Machine access parameter, so that whole websites or part website initiate Stochastic accessing according to the random access parameter after renewal.Due to anti- Feedforward information includes the current Stochastic accessing situation of each website, therefore the Stochastic accessing ginseng that access point updates according to feedback information Number is more matched with current network environment, improves the accuracy of random access parameter renewal, and then improve the utilization of resource Rate.
Based on the network architecture shown in Fig. 1, Fig. 2 is referred to, to the embodiment of the invention provides a kind of random access parameter Update method schematic flow sheet.As shown in Fig. 2 the methods described of the embodiment of the present invention may comprise steps of S201- Step S204.
S201, feedback letter of the access point according to entrained by the Stochastic accessing bag that at least one website being properly received sends Breath, updates current random access parameter.
Specifically, it is necessary to initiating random access procedure before carrying out data transmission between website and access point.For random Access procedure, access point can to the multiple websites in network coverage provide it is multiple can Stochastic accessing resource, each station Point selects resource according to current random access parameter, and sends Stochastic accessing bag by selected resource.If website is received The acknowledgement frame that access point sends, represents Stochastic accessing success.If website does not receive the acknowledgement frame of access point transmission, then it is assumed that Random access failure, website needs to send Stochastic accessing bag again according to current random access parameter selection resource.Access point root According to the feedback information entrained by the Stochastic accessing bag that one or more website being properly received sends, current Stochastic accessing is updated Parameter.Wherein, the Stochastic accessing bag being properly received refers to that its validity is tested after access point receives Stochastic accessing bag Card, optionally, can be by check bit or CRC (the Cyclic Redundancy in Stochastic accessing bag Check, CRC) field carries out verification and judges whether to be properly received.If verification passes through, then it represents that be properly received Stochastic accessing bag, if Verification does not pass through, then abandon Stochastic accessing bag and expression is not successfully received Stochastic accessing bag.One Stochastic accessing bag is by one Website according to the selection of current random access parameter can the resource of Stochastic accessing carry out Stochastic accessing when it is transmitted, one connects at random Enter bag and carry a feedback information for website.It should be noted that in feasible scheme, when described access point is according to feedback letter When the random access parameter that breath determines is identical with current random access parameter, the Stochastic accessing ginseng that described access point can determine Number is assigned to current random access parameter, and then realizes the renewal to current random access parameter.
Optionally, the random access points can according to the feedback information of the Stochastic accessing bag of one or more website, It is determined that it is current can random access resource degree of contention, and then calculate accurate random access parameter, and using calculating The random access parameter for obtaining updates current random access parameter.For example, the feedback information of Stochastic accessing bag includes website once The trial of Stochastic accessing accesses number of times, described access point broadcast in network coverage comprising 16 can Stochastic accessing money During source, if described access point receives the Stochastic accessing bags that 3 websites send, and the Stochastic accessing bag of each website feedback When information represents that the trial of Stochastic accessing accesses number of times higher than predetermined threshold value, represent that website is not easy Stochastic accessing success, but The quantity of the resource for being provided is the demand that disclosure satisfy that website, thus the random access parameter setting do not meet it is current Network environment, therefore feedback letter of the access point according to entrained by the Stochastic accessing bag that at least one website being properly received sends Breath, updates current random access parameter, to improve the success rate of website Stochastic accessing, and then improves utilization of the website to resource Rate.
It should be noted that the current random access parameter can be determined by WLAN standard, i.e. the station Point sends Stochastic accessing bag using the random access parameter of acquiescence to described access point；Or, the current random access parameter To be determined by described access point, i.e. the website to described access point send Stochastic accessing bag before, described access point to Either site in network coverage is broadcasted or to the part current random access parameter of website multicast, so that the website root Stochastic accessing is carried out according to the random access parameter of broadcast.
Optionally, a feedback information for website includes that the website attempts the number of times for accessing and the number of times being successfully accessed；Or Person, the feedback information includes the number of times for attempting accessing；Or, the feedback information includes that the number of times being successfully accessed connects with trial The ratio of the number of times for entering；Or, the feedback information includes retransmitting attempts the number of times for accessing and the number of times being successfully accessed；Or, The feedback information includes retransmitting the number of times for attempting accessing, wherein, the number of times for attempting accessing is retransmitted numerically than attempting accessing Number of times few 1.
S202, described access point sends the random access parameter after updating to targeted sites.
Specifically, described access point sends the random access parameter after updating to targeted sites, so that the targeted sites Stochastic accessing is initiated according to the random access parameter after the renewal.Wherein, the targeted sites are covered for described access point network Whole websites or part website in the range of lid.
For example, the Stochastic accessing after described access point can update in network coverage to the broadcast of whole websites Parameter, so that the whole websites in network coverage carry out Stochastic accessing according to the random access parameter after the renewal.Again For example, described access point can be with selected part website, the random access parameter after being updated to part website multicast, so that portion Branch website carries out Stochastic accessing according to the random access parameter after the renewal.
S203, website receives the random access parameter that access point sends.
Specifically, website receives the random access parameter that described access point sends.The random access parameter is the station Point selection can Stochastic accessing resource foundation, i.e., described website by according to the random access parameter select can Stochastic accessing Resource, to described access point send Stochastic accessing bag.It should be noted that the website is to receive described access point to send Any one website in whole websites or part website of random access parameter.
S204, when the website initiates Stochastic accessing, the website is using the random access parameter choosing for receiving Select can the resource of Stochastic accessing send Stochastic accessing bag, the Stochastic accessing bag carries the feedback information of the website.
Specifically, when the website initiates Stochastic accessing, the website is using the random access parameter selection after updating Can Stochastic accessing resource send Stochastic accessing bag.The Stochastic accessing bag carries the feedback information of the website.Optionally, institute State feedback information and attempt the number of times for accessing and the number of times being successfully accessed including the website；Or, the feedback information includes attempting The number of times of access；Or, the feedback information includes the ratio of the number of times and number of times for attempting accessing being successfully accessed；Or, institute Stating feedback information includes retransmitting the number of times attempted the number of times of access and be successfully accessed；Or, the feedback information is tasted including re-transmission Try into number of times, wherein, retransmit attempt access number of times numerically than attempt access number of times few 1.
Optionally, current random access parameter can include competition window values or access probability, for example, if Stochastic accessing Parameter is competition window values, and the Random Access that correspondingly website can be used is backoff counter access way, is updated Random access parameter afterwards be backoff counter access way in competition window values CW, the website in the range of 0 to CW with Machine generate random number, then according to can random access resource number and/or other conditions update random number, when random number update When being the value less than or equal to 0, the website selection target resource can send Stochastic accessing bag in the resource of Stochastic accessing.Again For example, if random access parameter is access probability, the Random Access that correspondingly website can be used is probability Access way, random access parameter after renewal is the access probability in probability access way, the website between 0 to 1 with Machine generates random number, when the random number is less than access probability, selection target resource can send in the resource of Stochastic accessing Stochastic accessing bag.
In embodiments of the present invention, access point is connect at random by what is sent according to one or more website being properly received Enter the feedback information entrained by bag, update current random access parameter, due to feedback information include each website it is current with Machine accesses situation, therefore the random access parameter that access point updates according to feedback information is more matched with current network environment, The accuracy of random access parameter renewal is improve, and then improves the utilization rate of resource.
Based on the network architecture shown in Fig. 1, Fig. 3 is referred to, to the embodiment of the invention provides another Stochastic accessing ginseng The schematic flow sheet of several update methods.As shown in figure 3, the methods described of the embodiment of the present invention may comprise steps of S301- steps S311.
S301, access point broadcasts trigger frame in network coverage, the trigger frame be used to indicate comprising one or Multiple can Stochastic accessing resource RACH.
Specifically, it is necessary to initiating random access procedure before carrying out data transmission between website and access point.For random Access procedure, access point can to the multiple websites in network coverage provide it is multiple can Stochastic accessing resource, each station Point selects resource according to current random access parameter, and sends Stochastic accessing bag by selected resource.If website is received The acknowledgement frame that access point sends, represents Stochastic accessing success.If website does not receive the acknowledgement frame of website transmission, then it is assumed that with Machine access failure, website needs to send Stochastic accessing bag again according to current random access parameter selection resource.
Described access point broadcasts trigger frame in network coverage.It is comprising one or many that the trigger frame is used for instruction It is individual can Stochastic accessing resource RACH.For example, the trigger frame is used to indicate the son letter that can be used for Stochastic accessing The resource in road, child resource block or other resource formats.Optionally, the trigger frame may be used to indicate that comprising one or The scheduling of the resource that multiple schedulable are accessed accesses channel etc., and the embodiment of the present invention is not limited this.
S302, website receives the trigger frame of access point broadcast.
Specifically, the website receives the trigger frame of access point broadcast, the website can when Stochastic accessing is initiated, according to Current random access parameter selection resource simultaneously sends Stochastic accessing bag by the resource.
It should be noted that the website is any one website in the network coverage of described access point.It is described Current random access parameter can be determined by WLAN standard, i.e. the website is using the random access parameter given tacit consent to Stochastic accessing bag is sent to described access point；Or, the current random access parameter is determined by described access point, i.e. Before Stochastic accessing bag is sent to described access point, described access point is to the either site in network coverage for the website Broadcast or to the part current random access parameter of website multicast, so that the website is carried out according to the random access parameter of broadcast Stochastic accessing.
S303, the website according to current random access parameter selection can Stochastic accessing resource send carry feedback information Stochastic accessing bag.
Specifically, the website sends Stochastic accessing bag by the RACH, the Stochastic accessing bag is carried Feedback information.The feedback information is that the feelings of Stochastic accessing are carried out according to current random access parameter for feeding back the website Condition, optionally, the feedback information includes that the website attempts the number of times for accessing and the number of times being successfully accessed；Or, the feedback Information includes the number of times for attempting accessing；Or, the feedback information includes the number of times being successfully accessed and the number of times for attempting accessing Ratio；Or, the feedback information includes retransmitting attempts the number of times for accessing and the number of times being successfully accessed；Or, the feedback letter Breath includes retransmitting the number of times that trial is accessed, wherein, retransmit the number of times few 1 that the number of times for attempting accessing numerically is accessed than trial.
Optionally, current random access parameter can include competition window values or access probability, for example, if Stochastic accessing Parameter is competition window values, and the Random Access that correspondingly website can be used is backoff counter access way, currently Random access parameter is the competition window values CW in backoff counter access way, and the website is given birth at random in the range of 0 to CW Into random number, then according to can random access resource number and/or other conditions update random number, when random number be updated to it is small In or equal to 0 value when, the website selection target resource can send Stochastic accessing bag in the resource of Stochastic accessing.Illustrate again For, if random access parameter is access probability, the Random Access that correspondingly website can be used is accessed for probability Mode, current random access parameter is the access probability in probability access way, the website between 0 to 1 random generation with Machine number, when the random number is less than access probability, selection target resource can send Stochastic accessing in the resource of Stochastic accessing Bag.
It should be noted that the feedback information can include that the website initiates the trial after this Stochastic accessing The number of times of access and the number of times being successfully accessed；Or, the feedback information is initiated after this Stochastic accessing including the website Trial access number of times；Or, the feedback information includes that the re-transmission that the website is initiated after this Stochastic accessing is attempted The number of times of access and the number of times being successfully accessed；Or, the feedback information is initiated after this Stochastic accessing including the website Re-transmission attempt access number of times；Or, the feedback information includes that trial of the website in preset time range is accessed Number of times and the number of times that is successfully accessed；Or, the feedback information connects including trial of the website in preset time range The number of times for entering；Or, the feedback information include the website in preset time range re-transmission attempt access number of times and The number of times being successfully accessed；Or, the feedback information includes that re-transmission of the website in preset time range attempts what is accessed Number of times.Optionally, preset time range can include the first moment that the website is currently located and solid earlier than the first moment Scope between second moment at fixed interval.
For example, if the feedback information is using the number of times for attempting accessing and the number of times being successfully accessed, the website Can directly transmit and attempt the number of times for accessing and the number of times being successfully accessed, i.e. when the website is that n-th sends the Stochastic accessing When the number of times wrap, being successfully accessed is M, then send the number of times for attempting accessing be N, the number of times that is successfully accessed be M, wherein, successfully connect The initial value of the number of times for entering is 0, and increase by 1 and then is obtained on the number of times being successfully accessed after Stochastic accessing success each time The number of times that work(is accessed；Or using the revised number of times for attempting accessing and the number of times that is successfully accessed, such as, the website can be The interval made an appointment quantifies above-mentioned number of times and numerical value, represents that numerical value belongs to one of area with one or more bit Between, correspondingly, access point can be recovered or be estimated the numerical value that website feeds back by the bit of website feedback.
S304, is sent out when any one website in the network coverage is successfully received by the RACH During the Stochastic accessing bag for sending, described access point feedback acknowledgment frame.
Specifically, passing through the RACH when any one website in the network coverage is successfully received During the Stochastic accessing bag of transmission, described access point feedback acknowledgment frame, the acknowledgement frame is used for the transmission Stochastic accessing bag Website indicates to be properly received the Stochastic accessing bag.Wherein, the Stochastic accessing bag being properly received refers to that access point is received at random Its validity is verified after access package, optionally, can be entered by the check bit or crc field in Stochastic accessing bag Row verification judges whether to be properly received.If verification passes through, then it represents that be properly received Stochastic accessing bag, if verification does not pass through, lose Abandon Stochastic accessing bag and expression is not successfully received Stochastic accessing bag.
Optionally, when feedback information entrained in the Stochastic accessing bag that the website sends is to include attempting the secondary of access During several situation, described access point record sends the number of times being successfully accessed of the website of the Stochastic accessing bag.For example, institute Access point is stated after the Stochastic accessing bag for being successfully received the website, website mark Stochastic accessing is successfully indicated；Or Person, successfully indicates and records Stochastic accessing successful time point to website mark Stochastic accessing, is connect at random by record Enter successful time point, so when the feedback information that the website sends is the data in preset time range, be easy to described Access point obtains the All Time point corresponding number of times that is successfully accessed of the website in the preset time range.
S305, the website judges whether the acknowledgement frame of described access point feedback is received in preset time range.
Specifically, the website judges whether the acknowledgement frame of described access point feedback is received in preset time range. When do not received in preset time range described access point feedback acknowledgement frame when, then it represents that the website Stochastic accessing not into Work(, performs step S306；When judging to be received in preset time range the acknowledgement frame of described access point feedback, then it represents that institute The success of website Stochastic accessing is stated, step S307 is performed.
S306, if it is not, the website updates the feedback information.
Specifically, when the acknowledgement frame of described access point feedback is not received in preset time range, expression connects at random Enter unsuccessful, the number of times that the trial in the website renewal feedback information is accessed；Or, update the feedback information In re-transmission attempt access number of times；Or, the number of times being successfully accessed updated in the feedback information is secondary with what trial was accessed Several ratio, it is to be understood that the feedback information of the website renewal and the feedback of carrying in the website Stochastic accessing bag Information is consistent.For example, when the feedback information is an attempt to the number of times for accessing and the number of times being successfully accessed, when when default Between in the range of do not receive described access point feedback acknowledgement frame when, it is original attempt access number of times on the basis of Jia 1.And Step S302 is performed after feedback information renewal, is particularly used for when the trigger frame that access point is broadcasted is received next time, The step of after execution step S303 and step S303.
S307, if so, the website updates the feedback information, and sends data to be transmitted to described access point.
Specifically, when the acknowledgement frame of described access point feedback is received in preset time range, representing random It is successfully accessed, the website updates the trial number of times for accessing and the number of times being successfully accessed in the feedback information；Or, Update the number of times that the trial in the feedback information is accessed；Or, update the number of times being successfully accessed in the feedback information with Attempt the ratio of the number of times of access；Or, update the re-transmission in the feedback information and attempt the number of times of access and successfully connect The number of times for entering；Or, update the number of times that the re-transmission in the feedback information is attempted accessing；It is understood that the website is more New feedback information is consistent with the feedback information of carrying in the website Stochastic accessing bag.For example, working as the feedback information When being an attempt to the number of times for accessing and the number of times being successfully accessed, in original number of times for attempting accessing and the number of times being successfully accessed On the basis of respectively Jia 1, and start to described access point send data to be transmitted.
It should be noted that described access point can carry the instruction website in acknowledgement frame to allow to perform data transfer Information, after the website receives the acknowledgement frame, the website can start to send number waiting for transmission to access point According to；Or, described access point can send and permit after acknowledgement frame is sent to the website for sending Stochastic accessing bag to the website Perhaps the information of data transfer is performed, after website receives the information for allowing to perform data transfer, starts to be sent to access point Data waiting for transmission.
S308, feedback letter of the access point according to entrained by the Stochastic accessing bag that at least one website being properly received sends Breath, updates current random access parameter.
Specifically, access point is anti-according to entrained by the Stochastic accessing bag that one or more website being properly received sends Feedforward information, updates current random access parameter.Wherein, a Stochastic accessing bag is joined according to current Stochastic accessing by a website Number selection can the resource of Stochastic accessing carry out transmitted during Stochastic accessing, Stochastic accessing bag carries a feedback for website Information.
It should be noted that described access point can perform step S308 according to Fixed Time Interval；Or, the access Whether the Stochastic accessing bag transmitted by website that point can be properly received by detection meets pre-conditioned, if meeting, triggering is held The step of row updates current random access parameter.It is understood that described access point sets different according to different feedback informations It is pre-conditioned.For example, access point is according to entrained by the Stochastic accessing bag that at least one website being properly received sends Feedback information, the first feasible scheme is, when the feedback information includes attempting the number of times for accessing and the number of times being successfully accessed When, described access point judges website of the number of times more than first threshold accessed with the presence or absence of trial at least one website And/or judge at least one website with the presence or absence of the number of times being successfully accessed whether more than Second Threshold website, when sentencing Disconnected result is that when being, described access point performs the step of updating current random access parameter, or, when judged result is no, Described access point performs the step of updating current random access parameter；Second feasible scheme is, when the feedback information bag When including the number of times for attempting accessing, described access point judges to be more than with the presence or absence of the number of times for attempting accessing at least one website It is secondary with the presence or absence of what is be successfully accessed at least one website of website and/or described access point the judgement record of first threshold More than the website of Second Threshold, when judged result is to be, described access point performs the step for updating current random access parameter to number Suddenly, or, when judged result for it is no when, described access point perform update current random access parameter the step of；The third is feasible Scheme be, when the feedback information includes the ratio of the number of times that is successfully accessed and the number of times for attempting accessing, described access point Judge to be less than the 3rd threshold with the ratio of the number of times for attempting accessing with the presence or absence of the number of times being successfully accessed at least one website The website of value, when judged result is to be, described access point performs the step of updating current random access parameter, or, when sentencing When disconnected result is no, described access point performs the step of updating current random access parameter；4th kind of feasible scheme is to work as institute When stating feedback information including retransmitting the number of times for attempting accessing and the number of times being successfully accessed, described access point judges described at least one With the presence or absence of in retransmitting and attempting the number of times that accesses more than the website of the 4th threshold value and/or judge at least one website in website Whether it is more than the website of Second Threshold with the presence or absence of the number of times being successfully accessed, when judged result is to be, described access point is performed The step of updating current random access parameter, or, when judged result is no, described access point is performed to update and currently connect at random The step of entering parameter；5th kind of feasible scheme is, described to connect when the feedback information includes retransmitting the number of times for attempting accessing Access point judges that the number of times for attempting access with the presence or absence of re-transmission at least one website is more than website and/or the institute of the 4th threshold value Access point is stated to judge to whether there is website of the number of times more than Second Threshold being successfully accessed at least one website for recording, When judged result is to be, described access point performs the step of updating current random access parameter, or, when judged result is no When, described access point performs the step of updating current random access parameter；6th kind of feasible scheme is that described access point judges The quantity of the Stochastic accessing bag being successfully received in preset time range with it is described can Stochastic accessing resource quantity ratio Whether value is less than the 5th threshold value, and when judged result is to be, described access point performs the step of updating current random access parameter, Or, when judged result is no, described access point performs the step of updating current random access parameter.These are only citing, In embodiments of the present invention to pre-conditioned restriction of described access point setting.In addition, in feasible scheme, when described Access point according to the random access parameter that feedback information determines it is identical with current random access parameter when, described access point can be by The random access parameter of determination is assigned to current random access parameter, and then realizes the renewal to current random access parameter.
Optionally, the current random access parameter includes competition window values or access probability.
Please also refer to Fig. 4 a, 4b and 4c, the schematic flow sheet of step S308 is respectively the embodiment of the invention provides, such as Shown in Fig. 4 a, step S308 can include step S401- steps S404.Specifically if random access parameter is competition window values, The implementation procedure of step S308.
S401, described access point obtains the feedback entrained by the Stochastic accessing bag that at least one website being properly received sends Information.
Specifically, described access point is obtained entrained by the Stochastic accessing bag that one or more website being properly received sends Feedback information, update current random access parameter with according to feedback information.Wherein, acquired be properly received one or Multiple websites can be the website that Stochastic accessing bag is properly received in preset time range.
S402, described access point determines the average value of the number of times and ratio of the number of times for attempting accessing being successfully accessed.
Specifically, when the feedback information includes the number of times attempted the number of times for accessing and be successfully accessed, described access point Feedback information according at least one website determines that the number of times being successfully accessed is average with the ratio of the number of times for attempting accessing Value；Or, when the feedback information includes the number of times for attempting accessing, at least one station of the described access point according to record The number of times being successfully accessed of point and the feedback information of at least one website determine the number of times being successfully accessed and attempt what is accessed The average value of the ratio of number of times；Or, when the feedback information includes the ratio of the number of times and number of times for attempting accessing being successfully accessed During value, described access point determines the number of times being successfully accessed and attempts the secondary of access according to the feedback information of at least one website The average value of several ratio.
It should be noted that described access point determines that the number of times being successfully accessed is average with the ratio of the number of times for attempting accessing Value, it is a kind of the number of times being successfully accessed of each website at least one website to be sued for peace, then tasting each website Try into number of times summation, finally by summation after the number of times being successfully accessed divided by after summation trial access number of times obtain into The average value of the ratio of the number of times that the number of times that work(is accessed is accessed with trial；Another kind can calculate at least one station by feedback information The ratio of the number of times that the number of times being successfully accessed of each website is accessed with trial in point, the success further according to each website connects The number of times for entering and the ratio of the number of times for attempting accessing, calculate the number of times being successfully accessed average with the ratio of the number of times for attempting accessing Value.
S403, when the number of times being successfully accessed is more than first threshold with the average value of the ratio of the number of times for attempting accessing When, reduce competition window values according to the first preset ratio.
If specifically, the current random access parameter for competition window values, when the number of times being successfully accessed connects with trial When the average value of the ratio of the number of times for entering is more than first threshold, described access point reduces current competition according to the first preset ratio Window values.For example, competition window values to be contracted to the half of current competition window values.For example, competition window values be website with Machine access way is the current random access parameter in the case of backoff counter access way.
S404, when the number of times being successfully accessed is less than Second Threshold with the average value of the ratio of the number of times for attempting accessing When, according to the 3rd preset ratio increase competition window values.
If specifically, the current random access parameter for competition window values, when the number of times being successfully accessed connects with trial When the average value of the ratio of the number of times for entering is less than Second Threshold, described access point increases current competition according to the 3rd preset ratio Window values.For example, 2 times that window values increase to current competition window values will be competed.
It should be noted that the first threshold and the Second Threshold in Fig. 4 a illustrated embodiments can be same numbers Value, or different numerical value, do not limit in embodiments of the present invention.
As shown in Figure 4 b, step S308 can include step S401, step S402, step S405 and step S406.Specifically It is the implementation procedure of step S308 when random access parameter is access probability.Wherein, step S401 and step S402 can be found in The introduction of correspondence step, will not be repeated here in Fig. 4 a.
S401, described access point obtains the feedback entrained by the Stochastic accessing bag that at least one website being properly received sends Information.
S402, described access point determines the average value of the number of times and ratio of the number of times for attempting accessing being successfully accessed.
S403, when the number of times being successfully accessed is more than first threshold with the average value of the ratio of the number of times for attempting accessing When, increase access probability according to the second preset ratio.
If specifically, the current random access parameter be access probability, when the number of times being successfully accessed connects with trial When the average value of the ratio of the number of times for entering is more than first threshold, described access point increases access probability according to the second preset ratio. For example, access probability is increased into 0.1.For example, access probability be website Random Access be probability access way In the case of current random access parameter.
S404, when the number of times being successfully accessed is less than Second Threshold with the average value of the ratio of the number of times for attempting accessing When, increase access probability according to the 4th preset ratio.
If specifically, the current random access parameter be access probability, when the number of times being successfully accessed connects with trial When the average value of the ratio of the number of times for entering is less than Second Threshold, described access point currently connects at random according to the increase of the 4th preset ratio Enter parameter.For example, access probability is reduced into 0.1.
It should be noted that the first threshold and the Second Threshold in Fig. 4 b illustrated embodiments can be same numbers Value, or different numerical value, do not limit in embodiments of the present invention.
As illustrated in fig. 4 c, step S308 may comprise steps of S407- steps S410.
S407, described access point obtains the feedback entrained by the Stochastic accessing bag that at least one website being properly received sends Information.
Specifically, described access point is obtained entrained by the Stochastic accessing bag that one or more website being properly received sends Feedback information, update current random access parameter with according to feedback information.
S408, when feedback information includes the number of times attempted the number of times for accessing and be successfully accessed, access point determines at least one The ratio of the number of times that the number of times being successfully accessed of each website is accessed with trial in individual website；Or, when feedback information includes Attempt access number of times when, access point according to record at least one website the number of times being successfully accessed and feedback information determine to The ratio of the number of times that the number of times being successfully accessed of each website is accessed with trial in a few website.
Specifically, when the feedback information includes the number of times attempted the number of times for accessing and be successfully accessed, described access point Calculate the number of times being successfully accessed of each website at least one website and the ratio of the number of times for attempting accessing；Or, When the feedback information includes the number of times for attempting accessing, success of the described access point according at least one website of record The number of times of access and the feedback information calculate the number of times being successfully accessed of each website at least one website and taste Try into number of times ratio.In addition, attempting the number of times for accessing and the number of times being successfully accessed when the feedback information includes retransmitting； Or, the feedback information includes retransmitting the number of times for attempting accessing, and will retransmit the number of times for attempting accessing and adds 1 acquisition to attempt what is accessed Number of times, then calculate the ratio of the number of times being successfully accessed and the number of times for attempting accessing.
S409, the number of times that is successfully accessed and trial of the access point according to current random access parameter and each website The ratio of the number of times of access, calculates competition website quantity.
Specifically, access point according to the number of times being successfully accessed of current random access parameter and each website with taste Try into number of times ratio, calculate competition website quantity.If described access point gets the feedback information of website, The number of times being successfully accessed according to the website competes the quantity of website with the ratio calculation of the number of times for attempting accessing.If described connect When access point gets the feedback information of multiple websites, in a kind of feasible scheme, described access point can be by the multiple website The number of times being successfully accessed and the ratio weighted average of the number of times for attempting accessing, obtain the average number of times being successfully accessed and attempt accessing Number of times ratio, calculate that the average number of times being successfully accessed is corresponding with the ratio of the number of times for attempting accessing average to compete website number Amount.In another feasible scheme, described access point can be by the number of times being successfully accessed of each website in the multiple website With the ratio of the number of times for attempting accessing, the corresponding competition website quantity of each website is calculated, by each website correspondence Competition website quantity weighted average, obtain average competition website quantity.
The involved weighted average in the feasible scheme of above two, can be right respectively according at least one website The weight answered is weighted and calculates average value again.For example, described access point is each station at least one website Point sets weight, in a kind of optional scheme, the network coverage that the weight can be currently located according to the website Position is divided, for example, the website for being in network area edge, may make due to network signal is unstable Into random access failure, therefore described access point is contemplated that the website for being pointed to the network area edge sets less power Weight, conversely, setting larger weight for being in the website at network area center.In another optional scheme, the access Point can set identical weight to any one website of at least one website.To described access point in the embodiment of the present invention For the weight that each website is set is not limited.
Further, competition website quantity computation rule is introduced, in embodiments of the present invention, by above-mentioned introduction Feasible program：By the number of times being successfully accessed of each website in multiple websites and the ratio of the number of times for attempting accessing, calculate every The corresponding competition website quantity of one website, by the corresponding competition website quantity weighted average of each website, being put down Competition website quantity is made a concrete analysis of.Random access parameter be website selection can random access resource foundation, it is assumed that when Preceding random access parameter is C1, arbitrarily one website of selection is used as targeted sites from least one website, it is assumed that targeted sites The number of times being successfully accessed with attempt access number of times ratio be p2, targeted sites are C according to current random access parameter1Choosing The probability for selecting target resource is p1, further, targeted sites selection target resource and other websites not selection target resource it is general Rate isHowever, in p2WithCurrent network environment can be matched when equal, i.e.,Wherein, the current random access parameter includes competition window values or access probability.
If current random access parameter C1It is competition window values, targeted sites are [0, C1) in the range of random generation random number, because The probability of this targeted sites selection target resourceThe corresponding competition website quantity N of final goal websiteSTAFor：
If current random access parameter C1It is access probability, wherein, C1It is the number more than 0 less than 1, targeted sites are in (0,1) In the range of random generation random number P, due to when random number P is (0, C1) in the range of when, targeted sites can be by can Stochastic accessing Resource send Stochastic accessing bag, therefore the probability of targeted sites selection target resource is C1, the corresponding competition station of targeted sites Point quantity NSTAFor：
After the quantity for obtaining the corresponding competition website of each website at least one website is calculated, by right The corresponding competition website quantity weighted average of each website, obtains average competition website quantity.
S410, described access point updates current random access parameter according to the competition website quantity for calculating.
Specifically, described access point is according to the competition website quantity for calculating, current random access parameter is updated.For Different random access parameters, the update mode for being used is different.The current random access parameter includes competition window values or connects Enter probability.For example, if the current random access parameter is competition window values, described access point is using the competition website number The corresponding numerical value of amount updates the competition window values；If the current random access parameter is access probability, described access point is used The inverse of the corresponding numerical value of the competition website quantity updates the access probability.In addition, when the feedback information is included successfully During the ratio of the number of times that the number of times of access is accessed with trial, after execution of step S407, step S409 is can perform.
It should be noted that the random access parameter after updating can be as a benchmark, for the industry of different priorities Business, by being multiplied by different coefficients to this benchmark, and then can cause the different Stochastic accessing ginseng of service with different priority levels correspondence Number.
S309, described access point sends the random access parameter after updating to targeted sites.
Specifically, described access point sends the random access parameter after updating to targeted sites, so that the targeted sites Stochastic accessing is initiated according to the random access parameter after the renewal.Wherein, the targeted sites are covered for described access point network Whole websites or part website in the range of lid.
For example, the Stochastic accessing after described access point can update in network coverage to the broadcast of whole websites Parameter, so that the whole websites in network coverage carry out Stochastic accessing according to the random access parameter after the renewal.Again For example, described access point can be with selected part website, the random access parameter after being updated to part website multicast, so that portion Branch website carries out Stochastic accessing according to the random access parameter after the renewal.
S310, website receives the random access parameter that access point sends.
Specifically, website receives the random access parameter that described access point sends.The random access parameter is the station Point selection can Stochastic accessing resource foundation, i.e., described website by according to the random access parameter select can Stochastic accessing Resource, to described access point send Stochastic accessing bag.It should be noted that the website is to receive described access point to send Any one website in whole websites or part website of random access parameter.
S311, when the website initiates Stochastic accessing, the website is using the random access parameter choosing for receiving Select can the resource of Stochastic accessing send Stochastic accessing bag, the Stochastic accessing bag carries the feedback information of the website.
Specifically, when the website initiates Stochastic accessing, the website is using the random access parameter selection after updating Can Stochastic accessing resource send Stochastic accessing bag.The Stochastic accessing bag carries the feedback information of the website.
Optionally, current random access parameter can include competition window values or access probability, for example, if Stochastic accessing Parameter is competition window values, and the Random Access that correspondingly website can be used is backoff counter access way, is updated Random access parameter afterwards be backoff counter access way in competition window values CW, the website in the range of 0 to CW with Machine generate random number, then according to can random access resource number and/or other conditions update random number, when random number update When being the value less than or equal to 0, the website selection target resource can send Stochastic accessing bag in the resource of Stochastic accessing.Again For example, if random access parameter is access probability, the Random Access that correspondingly website can be used is probability Access way, random access parameter after renewal is the access probability in probability access way, the website between 0 to 1 with Machine generates random number, when the random number is less than access probability, selection target resource can send in the resource of Stochastic accessing Stochastic accessing bag.
In embodiments of the present invention, access point is connect at random by what is sent according to one or more website being properly received Enter the feedback information entrained by bag, update current random access parameter, due to feedback information include each website it is current with Machine accesses situation, therefore the random access parameter that access point updates according to feedback information is more matched with current network environment, The accuracy of random access parameter renewal is improve, and then improves the utilization rate of resource.
Fig. 5 is referred to, to the embodiment of the invention provides a kind of structural representation of access point.In the embodiment of the present invention Described access point can be the access point of any embodiment offer in accompanying drawing 2- accompanying drawings 4.As shown in figure 5, the embodiment of the present invention Described access point 1 can include：Updating block 11, transmitting element 12.Optionally, described access point 1 also includes recording unit 13.
Updating block 11, for the feedback entrained by the Stochastic accessing bag according at least one website transmission being properly received Information, updates current random access parameter, wherein, a Stochastic accessing bag is according to current random access parameter by a website Selection can the resource of Stochastic accessing carry out transmitted during Stochastic accessing, Stochastic accessing bag carries a feedback letter for website Breath.
Optionally, the feedback information includes attempting the number of times for accessing and the number of times being successfully accessed；Or, the feedback letter Breath includes the number of times for attempting accessing；Or, the feedback information includes the ratio of the number of times and number of times for attempting accessing being successfully accessed Value.
Optionally, recording unit 13, for when the feedback information includes the number of times for attempting accessing, sending single described Unit 12 when be successfully received any one website in the network coverage by the RACH send with During machine access package, after feedback acknowledgment frame, record sends the number of times being successfully accessed of the website of the Stochastic accessing bag.
Optionally, the current random access parameter includes competition window values or access probability.
In one implementation, Fig. 6 a are referred to, is that a kind of structure of updating block provided in an embodiment of the present invention is shown It is intended to, as shown in Figure 6 a, the updating block 11 includes that first acquisition unit 111, the first determining unit 112 and first update single Unit 113.
First acquisition unit 111, for obtaining entrained by the Stochastic accessing bag that at least one website being properly received sends Feedback information.
First determining unit 112, for including attempting the number of times for accessing and the number of times being successfully accessed when the feedback information When, the feedback information according at least one website determines the number of times being successfully accessed and the ratio of the number of times for attempting accessing Average value；Or, when the feedback information includes the number of times for attempting accessing, according to the record of the recording unit 13 extremely The number of times being successfully accessed of a few website and the feedback information of at least one website determine the number of times being successfully accessed and taste Try into number of times ratio average value；Or, when the feedback information includes the number of times being successfully accessed and attempts what is accessed During the ratio of number of times, the feedback information according at least one website determines the number of times being successfully accessed and the number of times for attempting accessing Ratio average value.
First updating block 113, the number of times for being successfully accessed described in is average with the ratio of the number of times for attempting accessing When value is more than first threshold, the competition window values are reduced according to the first preset ratio, or it is described according to the increase of the second preset ratio Access probability；Wherein, the competition window values or access probability are current random access parameter.
First updating block 113, is additionally operable to when the number of times being successfully accessed and the ratio of the number of times for attempting accessing Average value when being less than Second Threshold, increase the competition window values according to the 3rd preset ratio, or subtract according to the 4th preset ratio The small access probability.
In another implementation, Fig. 6 b are referred to, be a kind of structure of updating block provided in an embodiment of the present invention Schematic diagram, as shown in Figure 6 b, the updating block 12 includes：Second acquisition unit 114, the second determining unit 115, computing unit 116 and second updating block 117.
Second acquisition unit 114, for obtaining entrained by the Stochastic accessing bag that at least one website being properly received sends Feedback information.
Second determining unit 115, for including attempting the number of times for accessing and the number of times being successfully accessed when the feedback information When, described access point determines the number of times being successfully accessed and the number of times for attempting accessing of each website at least one website Ratio；Or, when the feedback information includes the number of times for attempting accessing, described access point is at least one according to record The number of times being successfully accessed and the feedback information of individual website determine that the success of each website at least one website connects The ratio of the number of times that the number of times for entering is accessed with trial.
Computing unit 116, for the number of times being successfully accessed according to current random access parameter and each website With the ratio of the number of times for attempting accessing, competition website quantity is calculated.
Second updating block 117, for according to the competition website quantity for calculating, updating current random access parameter. Wherein, the current random access parameter includes competition window values or access probability.
Second updating block 117 updates the competition specifically for the corresponding numerical value using the competition website quantity Window values；Or the inverse renewal access probability of the corresponding numerical value using the competition website quantity.
Transmitting element 12, for sending the random access parameter after the updating block updates to targeted sites, so that institute State targeted sites and initiate Stochastic accessing according to the random access parameter after the renewal, wherein, the targeted sites connect for described Whole websites or part website in access point network coverage.
Optionally, the transmitting element 12, is additionally operable to broadcast trigger frame in network coverage, and the trigger frame is used for Indicate comprising one or more can Stochastic accessing resource RACH.
The transmitting element 12, is additionally operable to be successfully received any one website in the network coverage and passes through institute When stating the Stochastic accessing bag of RACH transmission, feedback acknowledgment frame, the acknowledgement frame is used for the transmission Stochastic accessing The website of bag indicates to be properly received the Stochastic accessing bag.
Access point shown in Fig. 5 is used to realize the content described in Fig. 2 to Fig. 4 correspondences embodiment of the present invention, implements shown in Fig. 5 The content not disclosed in example is reference can be made to the specific descriptions of Fig. 2 to Fig. 4 correspondence embodiments.
Fig. 7 is referred to, to the embodiment of the invention provides a kind of structural representation of website.Institute in the embodiment of the present invention State the website that website can be any embodiment offer in accompanying drawing 2- accompanying drawings 4.As shown in fig. 7, the station of the embodiment of the present invention Point 2 can include：Receiving unit 21 and transmitting element 22.Optionally, the website 2 also includes updating block 23.The website 2 It is any one website in the network coverage of described access point.
Receiving unit 21, the random access parameter for receiving access point transmission.
Transmitting element 22, for when the website initiate Stochastic accessing when, the institute received using the receiving unit 21 State random access parameter selection can the resource of Stochastic accessing send Stochastic accessing bag, the Stochastic accessing bag carries the website Feedback information.
Optionally, the feedback information includes attempting the number of times for accessing and the number of times being successfully accessed；Or, the feedback letter Breath includes the number of times for attempting accessing；Or, the feedback information includes the ratio of the number of times and number of times for attempting accessing being successfully accessed Value.
Optionally, the receiving unit 21 is additionally operable to receive the trigger frame of access point broadcast, and the trigger frame is used to indicate Comprising one or more can Stochastic accessing resource RACH.
Optionally, the updating block 23, described access point feedback is not received for working as in preset time range During acknowledgement frame, the number of times that the trial in the feedback information is accessed is updated；Or, the website updates the feedback information In the number of times being successfully accessed and the number of times for attempting accessing ratio；Wherein, the acknowledgement frame is used to refer to the website Show that described access point is properly received the Stochastic accessing bag.
The transmitting element 22, is additionally operable to resend connecing at random for the feedback information after carrying renewal to described access point Enter bag.
Website shown in Fig. 7 is used to realize the content described in Fig. 2 to Fig. 4 correspondences embodiment of the present invention, embodiment illustrated in fig. 7 In the content that does not disclose reference can be made to the specific descriptions of Fig. 2 to Fig. 4 correspondence embodiments.
Fig. 8 is referred to, is the structural representation of another access point provided in an embodiment of the present invention, as shown in figure 8, this connects Access point 1 includes：At least one processor 1001, such as CPU, at least one communication bus 1002, input equipment 1003, output set Standby 1004, memory 1005.Wherein, communication bus 1002 is used to realize the connection communication between these components.Input equipment 1003 and output equipment 1004 can be ether interface.Memory 1005 can be high-speed RAM memory, it is also possible to be non-shakiness Fixed memory (non-volatile memory), for example, at least one magnetic disk storage.
Wherein, the processor 1001 is related to the processing procedure of access point 1 and/or for this hair in also performing Fig. 2 to Fig. 4 Other processes of bright described technology.The memory is used to store the program code and data of access point 1.Input equipment 1003 and the communication that is used between access point 1 and the website for supporting shown in Fig. 2 to Fig. 4 of output equipment 1004.
As an example, the processor 1001 is used to perform the step S201 and step S202 in Fig. 2；Or, the place Reason device 1001 is used to perform step S301, step S304, step S308, the step S309 in Fig. 3, and, it is additionally operable to perform Fig. 4 Comprising some or all of step.
The step S202 that the output equipment 1004 is used in supporting described access point 1 to perform Fig. 2；Or, the output Step S301, step S304 and step S309 that equipment 1004 is used in supporting described access point 1 to perform Fig. 3.
The input equipment 1003 be used for support described access point 1 perform Fig. 3 in for step S303 receiving station lead to The step of crossing the Stochastic accessing bag of current random access parameter transmission, the number to be transmitted sent for receiving station in step S307 According to the step of and for receiving station in step S311 pass through update after random access parameter send Stochastic accessing bag step Suddenly.
Fig. 9 is referred to, is the structural representation of another website provided in an embodiment of the present invention, as shown in figure 9, the access Point includes：At least one processor 2001, such as CPU, at least one communication bus 2002, input equipment 2003, output equipment 2004, memory 2005.Wherein, communication bus 2002 is used to realize the connection communication between these components.Wherein, memory 2006 can be high-speed RAM memory, or non-labile memory, for example, at least one magnetic disk storage.
Wherein, the processor 2001 is related to the processing procedure of website 2 and/or for the present invention in also performing Fig. 2 to Fig. 4 Other processes of described technology.The memory is used for the program code and data of storage site 2.The He of input equipment 2003 Output equipment 2004 is used to support the communication between website 2 and the access point shown in Fig. 2 to Fig. 4.
As an example, the processor 2001 is used to perform the step S203 and S204 in Fig. 2；Or, the processor The 2001 step S302 being used to perform in Fig. 3, step S303, step S305, step S306, step S307, step S310 and step Rapid S311.
The S204 that the output equipment 2004 is used in supporting the website 2 to perform Fig. 2；Or, the output equipment 2004 step S303, the step S307 and step S311 being used in supporting the website 2 to perform Fig. 3.
The step S203 that defeated people's equipment 2003 is used in supporting the website 2 to perform Fig. 2；Or, the defeated people sets Standby 2003 step S302, the step S305 and step S310 being used in supporting the website 2 to perform Fig. 3.
It should be noted that the website 2 shown in access point 1 and Fig. 9 shown in Fig. 8 is used to realize Fig. 2 to Fig. 4 pairs of the present invention Answer the content stated of embodiment.
The embodiment of the present invention also provides a kind of more new system for random access parameter, and the system includes Fig. 5 or Fig. 8 Described access point 1, and the website 2 described in Fig. 7 or Fig. 9.
Figure 10 being referred to, being illustrated to the embodiment of the invention provides the flow of update method of another random access parameter Figure.As shown in Figure 10, the methods described of the embodiment of the present invention may comprise steps of S501- steps S505.
S501, website receives the trigger frame of access point broadcast, and the trigger frame is used for instruction can comprising one or more The RACH of the resource of Stochastic accessing.
Specifically, the website receives the trigger frame of access point broadcast.Optionally, described access point can be periodically wide Broadcast trigger frame, the trigger frame be used to indicating comprising one or more can Stochastic accessing resource RACH.Example Such as, the trigger frame is used to indicate to can be used for the resource of the subchannel, child resource block or other resource formats of Stochastic accessing.Can Choosing, the trigger frame may be used to indicate that the scheduling of the resource accessed comprising one or more schedulable accesses channel Deng the embodiment of the present invention is not limited this.
It should be noted that, it is necessary to initiating random access procedure before carrying out data transmission between website and access point.And Access point can by way of broadcasting trigger frame to the multiple websites in network coverage provide it is multiple can Stochastic accessing money Source, each website selects resource according to random access parameter, and sends Stochastic accessing bag by selected resource.It is optional , the website is any one website in the network coverage of described access point.
S502, the website according to the selection of current random access parameter can the resource of Stochastic accessing carry out Stochastic accessing.
Specifically, the website according to the selection of current random access parameter can the resource of Stochastic accessing carry out Stochastic accessing. Wherein, the current random access parameter can be determined by WLAN standard, i.e. the website is random using acquiescence Access parameter sends Stochastic accessing bag to described access point；Or, the current random access parameter is true by described access point Fixed, i.e. before Stochastic accessing bag is sent to described access point, described access point is in network coverage for the website Either site is broadcasted or to the part current random access parameter of website multicast, so that Stochastic accessing of the website according to broadcast Parameter carries out Stochastic accessing；Or, current random access parameter is the last Stochastic accessing sent to access point of the website What parameter was obtained after updating.In feasible scheme, described access point in the first Stochastic accessing of the website, described access point The minimum value C of random access parameter is sent to the websitemin, the C that the website will be receivedminIt is set to current Stochastic accessing Parameter.
Optionally, the Random Access that the website can be used is backoff counter access way, in this mode Under, current random access parameter is competition window values, and the website can connect at random according to the current random access parameter selection The resource for entering carries out Stochastic accessing, specifically can be step provided in an embodiment of the present invention in the lump referring to Figure 13 a and Figure 13 b The schematic flow sheet of S502.
In accompanying drawing 13a, including step S801 to step S805, specifically refer to and describe.
S801, the website detects whether there is the random number for having generated.
Specifically, the website detects whether there is the random number for having generated, in feasible scheme, the website detection is It is no to exist for an other Stochastic accessing and generate random number, if so, step S803 is then performed, if it is not, then performing step S802.
S802, the website generates random number according to current random access parameter.
If specifically, website detection is in the absence of the random number that has generated, the website according to renewal after it is random Access parameter generates random number, for example, set current random access parameter C1Represent, the website is 0 to C1In the range of Random generation random number R.
Whether S803, the website detection random number meets Stochastic accessing condition.
Specifically, whether the website detection random number meets Stochastic accessing condition, optionally, the website detection is random Whether number R meets Stochastic accessing condition can be whether detection random number R can Stochastic accessing less than what is included in the trigger frame Resource quantity N.If it is not satisfied, then performing step S804, if meeting, step S805 is performed.
In embodiments of the present invention, step S803 can be performed after step S802, can also be detected in step S801 After the random number for having generated, step S803 is performed.
S804, the website updates random number.
If specifically, the website detects the random number is unsatisfactory for the Stochastic accessing condition, the website updates Random number R, in feasible scheme, the mode for updating random number R is：Random number after renewal is that subtract can for random number before updating The difference of the quantity of random access resource, and record the random number after updating.Further, it is a kind of feasible after step S804 Scheme in, the trigger frame of the access point to be received such as described website broadcast, i.e., described website can also continue to perform step S501； In another feasible scheme, the website can again perform whether the random number after step S803 detections update meets at random Access conditions, until after meeting Stochastic accessing condition, performing step S05.
S805, website selection can the resource of Stochastic accessing send Stochastic accessing bag.
If specifically, the website detects the random number meets the Stochastic accessing condition, the website selection can The resource of Stochastic accessing sends Stochastic accessing bag.In feasible scheme, the website can be according to meeting the Stochastic accessing bar Part, random number selection can Stochastic accessing resource send Stochastic accessing bag.As an example it is assumed that can Stochastic accessing resource Quantity N selections are 8；Random number R is 20；Using the step that random number (R-N) is cyclically updated by step S803 and step S804 After rapid, it is 4 to meet the random number of the Stochastic accessing condition, then the 4th for being included in the website selection trigger frame Can random access resource transmission Stochastic accessing bag.In feasible scheme, the website can randomly choose one can Stochastic accessing Resource send Stochastic accessing bag.
In accompanying drawing 13b, including step S806 to step S810, specifically refer to and describe.
S806, the website detects whether there is the random number for having generated.
Specifically, the website detects whether there is the random number for having generated, in feasible scheme, the website detection is It is no to exist for an other Stochastic accessing and generate random number, if so, step S808 is then performed, if it is not, then performing step S807.
S807, the website generates random number according to current random access parameter.
If specifically, website detection is in the absence of the random number for having generated, the website is according to current Stochastic accessing Parameter generates random number, for example, set current random access parameter C1Represent, the website is 0 to C1In the range of it is random Generation random number R.
S808, the website updates random number.
Specifically, the website updates random number R, in feasible scheme, the mode for updating random number R is：After renewal Random number be update before random number subtract can random access resource quantity difference, and record update after random number.
In embodiments of the present invention, step S808 can be performed after step S807, can also be detected in step S801 After the random number for having generated, step S808 is performed.
Whether S809, the website detection random number meets Stochastic accessing condition.
Specifically, whether the website detection random number meets Stochastic accessing condition, optionally, the website detection is random Number R whether meet Stochastic accessing condition can be detection random number R whether less than can Stochastic accessing resource quantity N.If full Foot, then perform step S810.If it is not satisfied, in a kind of feasible scheme, the triggering of the access point broadcast to be received such as described website Frame, i.e., described website can also continue to perform step S501；In another feasible scheme, the website can again perform step The step of rapid S808 updates random number, until after meeting Stochastic accessing condition, performing step S810.
S810, website selection can the resource of Stochastic accessing send Stochastic accessing bag.
If specifically, the website detects the random number meets the Stochastic accessing condition, the website selection can The resource of Stochastic accessing sends Stochastic accessing bag.In feasible scheme, the website can be according to meeting the Stochastic accessing bar Part, random number selection can Stochastic accessing resource send Stochastic accessing bag.As an example it is assumed that can Stochastic accessing resource Quantity N selections are 8；Random number R is 20；Using the step that random number (R-N) is cyclically updated by step S803 and step S804 After rapid, it is 4 to meet the random number of the Stochastic accessing condition, then the 4th for being included in the website selection trigger frame Can random access resource transmission Stochastic accessing bag.
S503, the website judges whether to receive the acknowledgement frame of described access point feedback, and the acknowledgement frame is used for hair The website of the Stochastic accessing bag is sent to indicate to be properly received the Stochastic accessing bag.
Specifically, the website judges whether to receive the acknowledgement frame of described access point feedback, the acknowledgement frame be used for The website for sending the Stochastic accessing bag indicates to be properly received the Stochastic accessing bag.If the website judgement receives described true Recognize frame, then perform step S504, if the website judges not receiving the determination frame, perform step S505.
S504, the current random access parameter is updated according to the first predetermined manner.
If specifically, the website judges to receive the acknowledgement frame, the website updates according to the first predetermined manner Current random access parameter, and record the random access parameter after updating.Wherein, the first predetermined manner is according to the first default ratio Example reduces the mode of current random access parameter.If the website judges to receive the acknowledgement frame, represent that the website can be with Stochastic accessing bag is successfully transmitted by the current random access parameter, that is, being likely to require use can random access resource transmission The website negligible amounts of Stochastic accessing bag, therefore the website reduces current random access parameter, example according to the first preset ratio Such as, if current random access parameter C1Represent, the random access parameter C after renewal2Represent, the first predetermined manner be according to The mode that certain multiple is reduced：C2=C1/ 2, or to reduce the mode of certain numerical value：C2=C1- i, i are positive integer, or Person is the mode of the minimum value for being reduced to random access parameter：C2=Cmin, wherein, CminBe the website according to receive access point , it is necessary to explanation determined by the beacon frame of broadcast, access point can periodically broadcast beacon frame, carried in beacon frame random The minimum value C of access parameterminWith the maximum C of random access parametermax.In feasible scheme, according to the first predetermined manner During reducing the current random access parameter, whether the random access parameter after detection is reduced is less than CminIf then adopting Use Cmin, otherwise using the random access parameter after reducing.
S505, the current random access parameter is updated according to the second predetermined manner.
If specifically, the website judges not receiving the acknowledgement frame, according to the second predetermined manner update it is current with Machine access parameter, and record the random access parameter after updating.Wherein, the second predetermined manner is to increase according to the second preset ratio The mode of current random access parameter.If the website judges to receive the acknowledgement frame, represent that the website is worked as by described Preceding random access parameter sends Stochastic accessing bag not successfully, that is, being likely to require use can random access resource transmission Stochastic accessing The website quantity of bag is more so that each website is clashed in Stochastic accessing causes random access failure, therefore the station In the way of point is to increase current random access parameter so that multiple websites scatter selection can random access resource, reduction conflict. For example, setting current random access parameter C1Represent, the random access parameter C after renewal2Represent, the second predetermined manner be by According to the mode of certain multiple increase：C2=C1* 2, or to increase the mode of certain numerical value：C2=C1+ i, i are positive integer, or Person is the mode of the maximum for increasing to random access parameter：C2=Cmax, wherein, CmaxBe the website according to receive access point , it is necessary to explanation determined by the beacon frame of broadcast, access point can periodically broadcast beacon frame, carried in beacon frame random The minimum value C of access parameterminWith the maximum C of random access parametermax；In feasible scheme, according to the second predetermined manner During increasing the current random access parameter, whether the random access parameter after detection increase is more than CmaxIf then adopting Use Cmax, otherwise using the random access parameter after increase.
Further, after step S504 and step S505 update the current random access parameter, the website can be with Perform the trigger frame for waiting access point broadcast, you can to continue executing with step S501, it will of course be understood that being to receive After the trigger frame of access point broadcast, the current random access parameter in step S502 has been step S504 or step S505 updates Random access parameter afterwards.
In embodiments of the present invention, website receives the trigger frame of access point broadcast, and is selected according to current random access parameter Select can Stochastic accessing resource carry out Stochastic accessing after, by whether receiving the acknowledgement frame of access point transmission, and determine phase The mode answered updates current random access parameter, and such website can be performed next time using the random access parameter after updating Stochastic accessing.So website can be according to whether receive acknowledgement frame and voluntarily adjust random access parameter, enhancing website To the control ability of random access parameter, be conducive to improving the efficiency of Stochastic accessing.
Figure 11 being referred to, being illustrated to the embodiment of the invention provides the flow of update method of another random access parameter Figure.As shown in figure 11, the methods described of the embodiment of the present invention may comprise steps of S601- steps S607.
S601, website receives the trigger frame of access point broadcast, and the trigger frame is used for instruction can comprising one or more The RACH of the resource of Stochastic accessing.
Specifically, the website receives the trigger frame of access point broadcast.Optionally, described access point can be periodically wide Broadcast trigger frame, the trigger frame be used to indicating comprising one or more can Stochastic accessing resource RACH.Example Such as, the trigger frame is used to indicate to can be used for the resource of the subchannel, child resource block or other resource formats of Stochastic accessing.Can Choosing, the trigger frame may be used to indicate that the scheduling of the resource accessed comprising one or more schedulable accesses channel Deng the embodiment of the present invention is not limited this.
It should be noted that, it is necessary to initiating random access procedure before carrying out data transmission between website and access point.And Access point can by way of broadcasting trigger frame to the multiple websites in network coverage provide it is multiple can Stochastic accessing money Source, each website selects resource according to random access parameter, and sends Stochastic accessing bag by selected resource.It is optional , the website is any one website in the network coverage of described access point.
Whether S602, the website judges carry target random access parameter in the trigger frame.
Specifically, whether the website judges carry target random access parameter in the trigger frame.In feasible scheme, Target random access parameter is to be determined by access point and sent to the website by broadcasting trigger frame.
S603, if carrying the target random access parameter, the website according to the target random access parameter and 3rd predetermined manner updates current random access parameter, according to the random access parameter selection after renewal can Stochastic accessing resource Carry out Stochastic accessing.
If specifically, the website judges to carry the target random access parameter, the website in the trigger frame Current random access parameter is updated according to the target random access parameter and the 3rd predetermined manner, according to renewal after random connect Enter parameter selection can the resource of Stochastic accessing carry out Stochastic accessing.
In feasible scheme, the website updates current according to the target random access parameter and the 3rd predetermined manner Random access parameter, can specifically include step A1 to step A3：
A1, the website judges whether the target random access parameter is designated value, and the designated value is used to indicate institute State website and the current random access parameter is updated according to specific mode corresponding with the designated value.
A2, if the website judges that the target random access parameter is the designated value, the 3rd predetermined manner is The specific mode corresponding with the designated value, then the website is according to specific mode corresponding with designated value renewal institute State current random access parameter.Wherein, the designated value is described access point and the preassigned numerical value of the website, and citing comes Say, if current random access parameter C1Represent, the random access parameter C after renewal2Represent, designated value is 255, with specify It is according to current random access parameter C to be worth corresponding specific mode12 times be updated, then when the website judge it is described touch When target random access parameter in hair frame is 255, the random access parameter C after the website renewal2=C1*2。
A3, if the website judges that the target random access parameter is not the designated value, the 3rd predetermined manner Be the mode of indirect assignment, then the Stochastic accessing ginseng after the target random access parameter is directly set as updating by the website Number.For example, if current random access parameter C1Represent, the random access parameter C after renewal2Represent, designated value is 255, then when the website judges target random access parameter in the trigger frame for 16, the website update after it is random Access parameter C2=16.In feasible scheme, described access point can also send the minimum of random access parameter by trigger frame Value CminIf, CminIn the case of not being designated value, complete to update by the way of indirect assignment.
It should be noted that the 3rd predetermined manner can be made an appointment by the website and described access point , i.e., described website and described access point preassign one or more designated value, and specify corresponding with each designated value Specific mode, and specific mode corresponding with each designated value can be with different, the embodiment of the present invention is not construed as limiting to this；Together Sample, the website and described access point specify the 3rd predetermined manner of the non-designated value for the mode of indirect assignment.
Further, the scheme of step S602 and step S603 carries target random access parameter in corresponding to the trigger frame Scheme, in another feasible scheme, target random access parameter and the 3rd predetermined manner, institute can be carried in the trigger frame Website is stated after step S601 is performed, the target random access parameter and threeth of the website in the trigger frame Predetermined manner updates current random access parameter, specifically：Described access point will carry target random parameter and the 3rd default side The trigger frame of formula is broadcasted, and so described website is received after the trigger frame of access point broadcast, random according to the target Access parameter and the 3rd predetermined manner update current random access parameter.If current random access parameter C1Represent, after renewal Random access parameter C2Represent, for example, target random access parameter is 16, the 3rd predetermined manner is indirect assignment Mode, target random access parameter in the website detects the trigger frame is direct for the 16, the 3rd predetermined manner During the mode of assignment, the random access parameter C after the website renewal2=16；Or, and for example, target Stochastic accessing Parameter is 255, with target random access parameter for 255 corresponding 3rd predetermined manners are according to current random access parameter C1's 2 times are updated, and threeth predetermined manner of target random access parameter when being 255 is the website and the access What point was made an appointment, without being sent when trigger frame is broadcasted, then when the website judges that the target in the trigger frame is random When access parameter is 255, the random access parameter C after the website renewal2=C1*2.In another feasible scheme, the triggering The 3rd predetermined manner can be carried in frame, after step S601 is performed, the website is according in the trigger frame for the website The 3rd predetermined manner update current random access parameter, specifically：Described access point will carry the 3rd predetermined manner Trigger frame is broadcasted, and so described website is received after the trigger frame of access point broadcast, according to the 3rd predetermined manner Update current random access parameter.If current random access parameter C1Represent, the random access parameter C after renewal2Represent, For example, the 3rd predetermined manner is according to current random access parameter C11/2 be updated, then after the website updates Random access parameter C2=C1/2。
S604, if not carrying the target random access parameter, the website can according to the selection of current random access parameter The resource of Stochastic accessing carries out Stochastic accessing.
If specifically, not carrying the target random access parameter, the website is selected according to current random access parameter Select can the resource of Stochastic accessing carry out Stochastic accessing.Wherein, the current random access parameter can be by wireless local network mark It is accurate fixed, i.e. the website sends Stochastic accessing bag using the random access parameter of acquiescence to described access point；Or, it is described Current random access parameter is determined by described access point, i.e. the website is sending Stochastic accessing bag to described access point Before, described access point is broadcasted to the either site in network coverage or joined to the current Stochastic accessing of part website multicast Number, so that the website carries out Stochastic accessing according to the random access parameter of broadcast；Or, current random access parameter is described Obtained after the last random access parameter renewal sent to access point of website.
It should be noted that whether can Stochastic accessing according to the random access parameter selection after renewal in step S603 Resource carries out Stochastic accessing；Or in step S604 according to the selection of current random access parameter can Stochastic accessing resource carry out with Machine is accessed, specifically can in the lump referring to Figure 13 a and Figure 13 b, if being selected according to the random access parameter after renewal in step S603 Can the resource of Stochastic accessing carry out Stochastic accessing, after can the current random access parameter in Figure 13 a and Figure 13 b being changed to update Random access parameter performed；If in step S604 according to current random access parameter selection can Stochastic accessing resource Carry out Stochastic accessing, you can performed according to Figure 13 a and Figure 13 b, specific implementation procedure is referred to real shown in accompanying drawing 10 The specific introduction in example is applied, be will not be repeated here.
It should be noted that step S602, step S603 and step S604 are to carry target in the trigger frame to connect at random Enter execution flow chart during parameter, for carrying target random access parameter and the 3rd predetermined manner or institute in the trigger frame The 3rd predetermined manner of carrying can also be held according to the mode of step S602, step S603 and step S604 in stating trigger frame OK.
S605, the website judges whether to receive the acknowledgement frame of described access point feedback, and the acknowledgement frame is used for hair The website of the Stochastic accessing bag is sent to indicate to be properly received the Stochastic accessing bag.
Specifically, the website judges whether to receive the acknowledgement frame of described access point feedback, the acknowledgement frame be used for The website for sending the Stochastic accessing bag indicates to be properly received the Stochastic accessing bag.If the website judgement receives described true Recognize frame, then perform step S606, if the website judges not receiving the determination frame, perform step S607.
It should be noted that whether can Stochastic accessing according to the random access parameter selection after renewal in step S603 Resource carry out Stochastic accessing after；Still in step s 604 according to current random access parameter selection can Stochastic accessing money Source is carried out after Stochastic accessing, can carry out step S605.
S606, if receiving the acknowledgement frame, current random access parameter is updated according to the first predetermined manner.
If specifically, the website judges to receive the acknowledgement frame, the website updates according to the first predetermined manner Current random access parameter, and record the random access parameter after updating.Wherein, the first predetermined manner is according to the first default ratio Example reduces the mode of current random access parameter.If the website judges to receive the acknowledgement frame, represent that the website can be with Stochastic accessing bag is successfully transmitted by the current random access parameter, that is, being likely to require use can random access resource transmission The website negligible amounts of Stochastic accessing bag, therefore the website reduces current random access parameter, example according to the first preset ratio Such as, if current random access parameter C1Represent, the random access parameter C after renewal2Represent, the first predetermined manner be according to The mode that certain multiple is reduced：C2=C1/ 2, or to reduce the mode of certain numerical value：C2=C1- i, i are positive integer, or To be reduced to the mode of the minimum value of random access parameter：C2=Cmin, wherein, CminFor the website is wide according to access point is received , it is necessary to explanation determined by the beacon frame broadcast, access point can periodically broadcast beacon frame, carried in beacon frame and connect at random Enter the minimum value C of parameterminWith the maximum C of random access parametermax.In feasible scheme, subtract according to the first predetermined manner During few current random access parameter, whether the random access parameter after detection is reduced is less than CminIf then using Cmin, otherwise using the random access parameter after reducing.
S607, if not receiving the acknowledgement frame, current random access parameter is updated according to the second predetermined manner.
If specifically, the website judges not receiving the acknowledgement frame, according to the second predetermined manner update it is current with Machine access parameter, and record the random access parameter after updating.Wherein, the first predetermined manner is to increase according to the first preset ratio The mode of current random access parameter.If the website judges to receive the acknowledgement frame, represent that the website is worked as by described Preceding random access parameter sends Stochastic accessing bag not successfully, that is, being likely to require use can random access resource transmission Stochastic accessing The website quantity of bag is more so that each website is clashed in Stochastic accessing causes random access failure, therefore the station In the way of point is to increase current random access parameter so that multiple websites scatter selection can random access resource, reduction conflict. For example, setting current random access parameter C1Represent, the random access parameter C after renewal2Represent, the second predetermined manner be by According to the mode of certain multiple increase：C2=C1* 2, or to increase the mode of certain numerical value：C2=C1+ i, i are positive integer, or Person is the mode of the maximum for increasing to random access parameter：C2=Cmax, wherein, CmaxBe the website according to receive access point , it is necessary to explanation determined by the beacon frame of broadcast, access point can periodically broadcast beacon frame, carried in beacon frame random The minimum value C of access parameterminWith the maximum C of random access parametermax；In feasible scheme, according to the second predetermined manner During increasing the current random access parameter, whether the random access parameter after detection increase is more than CmaxIf then adopting Use Cmax, otherwise using the random access parameter after increase.
Further, after step S606 and step S607 update the current random access parameter, the website can be with Perform the trigger frame for waiting access point broadcast, you can to continue executing with step S601, it will of course be understood that being to receive After the trigger frame of access point broadcast, the current random access parameter in step S604 has been step S606 or step S607 updates Random access parameter afterwards.
In embodiments of the present invention, whether website receives the trigger frame of access point broadcast, carry in trigger frame by being detected Target random access parameter and determine whether to be updated current random access parameter, website selection can Stochastic accessing money Source is carried out after Stochastic accessing, by whether receiving the acknowledgement frame of access point transmission, and is determined corresponding mode and is updated currently Random access parameter, the Stochastic accessing that such website can be using the execution of the random access parameter after updating next time.So stand Point can update current random access parameter according to the target random access parameter carried in trigger frame, and according to whether receive Random access parameter is voluntarily adjusted to acknowledgement frame, control ability of the website to random access parameter is enhanced, can also basis The feedback of access point updates random access parameter, so advantageously in the efficiency for improving Stochastic accessing.
Figure 12 being referred to, being illustrated to the embodiment of the invention provides the flow of update method of another random access parameter Figure.As shown in figure 12, the methods described of the embodiment of the present invention may comprise steps of S701- steps S707.
S701, website receives the trigger frame of access point broadcast, and the trigger frame is used for instruction can comprising one or more The RACH of the resource of Stochastic accessing.
Specifically, the website receives the trigger frame of access point broadcast.Optionally, described access point can be periodically wide Broadcast trigger frame, the trigger frame be used to indicating comprising one or more can Stochastic accessing resource RACH.Example Such as, the trigger frame is used to indicate to can be used for the resource of the subchannel, child resource block or other resource formats of Stochastic accessing.Can Choosing, the trigger frame may be used to indicate that the scheduling of the resource accessed comprising one or more schedulable accesses channel Deng the embodiment of the present invention is not limited this.
It should be noted that, it is necessary to initiating random access procedure before carrying out data transmission between website and access point.And Access point can by way of broadcasting trigger frame to the multiple websites in network coverage provide it is multiple can Stochastic accessing money Source, each website selects resource according to random access parameter, and sends Stochastic accessing bag by selected resource.It is optional , the website is any one website in the network coverage of described access point.
S702, the website according to the selection of current random access parameter can the resource of Stochastic accessing carry out Stochastic accessing.
Specifically, the website according to the selection of current random access parameter can the resource of Stochastic accessing carry out Stochastic accessing. Wherein, the current random access parameter can be determined by WLAN standard, i.e. the website is random using acquiescence Access parameter sends Stochastic accessing bag to described access point；Or, the current random access parameter is true by described access point Fixed, i.e. before Stochastic accessing bag is sent to described access point, described access point is in network coverage for the website Either site is broadcasted or to the part current random access parameter of website multicast, so that Stochastic accessing of the website according to broadcast Parameter carries out Stochastic accessing；Or, current random access parameter is the last Stochastic accessing sent to access point of the website What parameter was obtained after updating.
Optionally, the Random Access that the website can be used is backoff counter access way, in this mode Under, current random access parameter is competition window values, and the website can connect at random according to the current random access parameter selection The resource for entering carries out Stochastic accessing, specifically can in the lump referring to Figure 13 a and Figure 13 b, and specific implementation procedure is referred in accompanying drawing 10 Specific introduction in illustrated embodiment, will not be repeated here.
S703, the website judges whether to receive the acknowledgement frame of described access point feedback, and the acknowledgement frame is used for hair The website of the Stochastic accessing bag is sent to indicate to be properly received the Stochastic accessing bag.
Specifically, the website judges whether to receive the acknowledgement frame of described access point feedback, the acknowledgement frame be used for The website for sending the Stochastic accessing bag indicates to be properly received the Stochastic accessing bag.If the website judgement receives described true Recognize frame, then perform step S704, if the website judges not receiving the determination frame, perform step S705.
S704, the current random access parameter is updated according to the first predetermined manner.
Specifically, the website receive described access point feedback determination people after, perform according to the first predetermined manner The current random access parameter is updated, and records the random access parameter after updating.Wherein, the first predetermined manner is according to One preset ratio reduces the mode of current random access parameter.If the website judges to receive the acknowledgement frame, represent described Website can be successfully transmitted Stochastic accessing bag by the current random access parameter, that is, being likely to require use can Stochastic accessing Resource sends the website negligible amounts of Stochastic accessing bag, therefore the website reduces current Stochastic accessing according to the first preset ratio Parameter, for example, setting current random access parameter C1Represent, the random access parameter C after renewal2Represent, the first predetermined manner It is the mode reduced according to certain multiple：C2=C1/ 2, or to reduce the mode of certain numerical value：C2=C1- i, i are just whole Number, or to be reduced to the mode of the minimum value of random access parameter：C2=Cmin, wherein, CminIt is the website according to reception , it is necessary to explanation determined by the beacon frame of access point broadcast, access point can periodically broadcast beacon frame, taken in beacon frame Minimum value C with random access parameterminWith the maximum C of random access parametermax.In feasible scheme, pre- according to first If during mode reduces the current random access parameter, whether the random access parameter after detection is reduced is less than CminIf, It is then to use Cmin, otherwise using the random access parameter after reducing.
Whether S705, the website judges carry target random access parameter in the trigger frame.
Specifically, the website do not receive described access point feedback determination people after, execution judge the trigger frame In whether carry target random access parameter.In feasible scheme, target random access parameter is determined and is passed through by access point Broadcast trigger frame is sent to the website.
S706, if carrying the target random access parameter, the website according to the target random access parameter and 3rd predetermined manner updates current random access parameter, according to the random access parameter selection after renewal can Stochastic accessing resource Carry out Stochastic accessing.
Specifically, the executive mode of step S706 may refer to the detailed description of step S603 in Figure 11, no longer go to live in the household of one's in-laws on getting married again State.
S707, if carrying the target random access parameter, currently connects at random according to the renewal of the second predetermined manner is described Enter parameter.
If specifically, carrying the target random access parameter, the website updates described according to the second predetermined manner Current random access parameter, and record the random access parameter after updating.Wherein, the second predetermined manner is according to the second default ratio The mode of the current random access parameter of example increase.If the website judges to receive the acknowledgement frame, represent that the website passes through The current random access parameter sends Stochastic accessing bag not successfully, that is, be likely to require using can random access resource send with The website quantity of machine access package is more so that each website is clashed in Stochastic accessing causes random access failure, therefore In the way of the website is to increase current random access parameter so that multiple websites scatter selection can random access resource, subtract Shaochong is dashed forward.For example, setting current random access parameter C1Represent, the random access parameter C after renewal2Represent, the second default side Formula is the mode increased according to certain multiple：C2=C1* 2, or to increase the mode of certain numerical value：C2=C1+ i, i are for just Integer, or to increase to the mode of the maximum of random access parameter：C2=Cmax, wherein, CmaxIt is the website according to connecing Receive determined by the beacon frame of access point broadcast, it is necessary to explanation, access point can periodically broadcast beacon frame, in beacon frame Carry the minimum value C of random access parameterminWith the maximum C of random access parametermax；In feasible scheme, according to second During predetermined manner increases the current random access parameter, whether the random access parameter after detection increase is more than Cmax, If then using Cmax, otherwise using the random access parameter after increase.
Further, after step S704, S706 and step S707 update the current random access parameter, the website The trigger frame for waiting access point broadcast can be performed, you can to continue executing with step S701, it will of course be understood that being to receive To after the trigger frame of access point broadcast, the current random access parameter in step S702 has been step S704, S706 or step Random access parameter after rapid S707 renewals.
In embodiments of the present invention, whether website receives the trigger frame of access point broadcast, carry in trigger frame by being detected Target random access parameter and determine whether to be updated current random access parameter, website selection can Stochastic accessing money Source is carried out after Stochastic accessing, by whether receiving the acknowledgement frame of access point transmission, and is determined corresponding mode and is updated currently Random access parameter, the Stochastic accessing that such website can be using the execution of the random access parameter after updating next time.So stand Point can update current random access parameter according to the target random access parameter carried in trigger frame, and according to whether receive Random access parameter is voluntarily adjusted to acknowledgement frame, control ability of the website to random access parameter is enhanced, can also basis The feedback of access point updates random access parameter, so advantageously in the efficiency for improving Stochastic accessing.
It should be noted that the scheme of the attached embodiment illustrated in fig. 13 of accompanying drawing 10- can apply to OFDM In the channel competition of (Orthogonal Frequency Division Multiple Access, OFDMA), the trigger frame Included in one or more can the RACH of resource of Stochastic accessing can be band resource, on initial Row OFDMA Stochastic accessings, website sets current random access parameter C according to the random access parameter obtained from access point1, its In, the random access parameter obtained from access point can be Cmin, or the random access parameter of other numerical value, and arrived 0 C1In the range of generate random number R, if R less than indicate in trigger frame can Stochastic accessing resource number, website will be random Number R are updated to 0, or website by random number R be updated to random number R subtract indicate in trigger frame can Stochastic accessing resource Value after number；If random number R is kept to 0, website randomly choose one can Stochastic accessing resource, send on the resource up Presentation protocol data unit (Presentation Protocol Data Unit, PPDU).
In actual applications, website can be used in combination upgoing O FDMA Stochastic accessings and enhancing in uplink random access Distributed channel accesses (Enhanced Distributed Channel Access, EDCA).Upgoing O FDMA Stochastic accessings can Multi-site up transmission simultaneously is received, Stochastic accessing efficiency can be strengthened, but multi-site has to wait for access point and sends comprising many It is individual can Stochastic accessing resource trigger frame after could access.Further, described access point can be by sending different type Frame to indicate website using OFDMA Stochastic accessings or indicate website using EDCA channel access, such as different type frame difference It is first kind frame and Equations of The Second Kind frame, the first kind frame can include but is not limited to beacon frame, management frame, disassociation frame etc., institute Equations of The Second Kind frame is stated including trigger frame, trigger frame can be to provide the uplink triggering frame of uplink transmission resource to website, or can be with To provide the uplink triggering frame of upgoing O FDMA Stochastic accessing transmissions resources to website.Wherein, first kind frame and Equations of The Second Kind frame To carry random access parameter A and random access parameter B, in feasible scheme, can join including Stochastic accessing in all kinds of frames Number A and/or random access parameter B.
For example, random access parameter A and random access parameter B may each comprise competition window (CW, as Figure 10- Involved random access parameter in Figure 13) and/or Arbitration Inter Frame Space (AIFSN), access point can be specified by setting CW Value, indicates to perform website disabling, closes the function of EDCA channel access；Access point can also by setting AIFSN as designated value, Indicate website disabling, close the function of EDCA channel access, the website disabling, the mode of the function of closing EDCA channel access Including and be not limited to pause EDCA keep out of the way, keep retreat count it is constant or closing keep out of the way meter counter.Optionally, Stochastic accessing Numerical value of the numerical value of parameter less than parameter in random access parameter A in parameter B.
When CW fields are CWn, (n, s are footmark, and n is not equal to s), represents window size n；Window size n is that agreement is advance Agreement.When CW fields are specific CWs, for disabling, EDCA channel access modes are closed.When CW fields are CWs, or it is window Mouth size is infinitely great.
When AIFSN fields are AIFSNn, (n, s are footmark, and n is not equal to s), represents interval slots number n；Interval slots number N makes an appointment for agreement.When AIFSN fields are AIFSNs, represent disabling, close EDCA channel access modes.When AIFSN words When section is for AIFSNs, or for interval slots number is infinitely great.
For example when CW field bit sequences are 0001,15 are represented；When CW values are 0010,31 are represented；... when CW values are When 1110,16383 are represented；When CW values are 1111, represent disabling, close EDCA channel access modes, or be interval slots Number is infinitely great.In specific implementation, it is possible to use other about definite values.In specific implementation, other bit sequence lengths can be used, and reflect Penetrate relation.Such as following table：
CW
0001 15
0010 31
… …
1110 16383
1111 Disabling EDCA/ (infinity)
CW fields can also represent with other projected forms, such as following table：
ECW
0001 1
0010 2
… …
1110 14
1111 Disabling EDCA/ (infinity)
For example when AIFSN field bit sequences are 0001,1 is represented；When AIFSN values are 0010,2 are represented；... when When AIFSN values are 1110,14 are represented；When AIFSN values are 1111, represent disabling, close EDCA channel access modes, Huo Chengwei Interval slots number is infinitely great.
Access point may indicate that the random access parameter used by website.Access point may indicate that the specified data queue of website with Machine access parameter.Except individually setting random access parameter for every queue, in specific implementation, above-mentioned CW can be refined as CWmin And CWmax.Website uses CWmin to give tacit consent to (initial) setting value as CW, when bust this (when not receiving confirmation reply), CW Existing CW is updated to by the output valve after a default computing.The default computing can be that input value is multiplied by a predetermined constant. Or plus a predetermined constant or specify number.When the output valve after default computing is more than CWmax, CW is updated to CWmax.
Access point is removed comprising random access parameter A, can also simultaneously include random access parameter B.Random access parameter B is used for Do not possess the website of OFDMA Stochastic accessing functions, random access parameter A is only used for the website of OFDMA Stochastic accessing functions.Here OFDMA Stochastic accessings function can also refer to multi-user (multi-user, MU) transmittability, specifically refer to equipment to access point sink Whether the ability of itself of report, or equipment actually supports MU transmittabilities.Or random access parameter B is used to be not involved in MU transmission Website, random access parameter A is only used for participating in the website of MU transmittabilities.
After website receives random access parameter A, if CW values are CWs, website pause EDCA keeps out of the way, and counting is kept out of the way in holding Value is constant.If CW is set to the CW values by the non-CWs of CW values, website.If CWmin is set to this by the non-CWmins of CWmin values, website CWmin values.
After website receives random access parameter A, if CW values are CWs, website pause EDCA keeps out of the way, and counting is kept out of the way in holding Value is constant.Or prohibit the use of the access period based on competition.
For example, as shown in figure 14, access point (AP) sends first kind frame in (1) of Figure 14, and website (STA) is being received After the instruction of first kind frame, channel access is carried out using the parameter of the instruction of first kind frame.Website is used in random access parameter A Parameter carry out EDCA accesses.
Website carries out EDCA and connects after Equations of The Second Kind frame is received using the parameter in random access parameter A in (2) of Figure 14 Enter.Equations of The Second Kind frame is an agreement designated frame, such as one management frame, control frame or data frame.Equations of The Second Kind frame can be one Uplink triggering frame.Alternatively, Equations of The Second Kind frame can be to provide the uplink triggering frame of uplink transmission resource to the website.Alternatively, Equations of The Second Kind frame can be to provide the uplink triggering frame of upgoing O FDMA Stochastic accessing transmissions resources to the website.
Website carries out EDCA and connects after Equations of The Second Kind frame is received using the parameter in random access parameter A in (3) of Figure 14 Enter.Equations of The Second Kind frame is an agreement designated frame, such as one management frame, control frame or data frame.Equations of The Second Kind frame can be one Uplink triggering frame.Alternatively, Equations of The Second Kind frame can be to provide the uplink triggering frame of uplink transmission resource to the website.Alternatively, Equations of The Second Kind frame can be to provide the uplink triggering frame of upgoing O FDMA Stochastic accessing transmissions resources to the website.Receiving Equations of The Second Kind Before frame, website can carry out EDCA accesses using the parameter in random access parameter B.
One of ordinary skill in the art will appreciate that all or part of flow in realizing above-described embodiment method, can be The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access Memory, RAM) etc..
Above disclosed is only present pre-ferred embodiments, can not limit the right model of the present invention with this certainly Enclose, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.

Claims (22)

1. a kind of update method of random access parameter, it is characterised in that including：
Feedback information of the access point according to entrained by the Stochastic accessing bag that at least one website being properly received sends, updates current Random access parameter, wherein, Stochastic accessing bag is can be with according to the current random access parameter selection by a website The resource that machine is accessed carries out transmitted during Stochastic accessing, Stochastic accessing bag one feedback information for website of carrying；
Described access point sends the random access parameter after updating to targeted sites, so that the targeted sites are according to the renewal Random access parameter afterwards initiates Stochastic accessing, wherein, the targeted sites are complete in described access point network coverage Portion's website or part website.
2. method according to claim 1, it is characterised in that described access point is according at least one website being properly received Feedback information entrained by the Stochastic accessing bag of transmission, before updating current random access parameter, also includes：
Access point broadcasts trigger frame in network coverage, and the trigger frame is used for instruction can be random comprising one or more The RACH of the resource of access；
When be successfully received any one website in the network coverage by the RACH send it is random During access package, described access point feedback acknowledgment frame, the acknowledgement frame is used to be indicated into the website for sending the Stochastic accessing bag Work(receives the Stochastic accessing bag.
3. method according to claim 1 and 2, it is characterised in that the feedback information include attempting the number of times for accessing and The number of times being successfully accessed；Or, the feedback information includes the number of times for attempting accessing；Or, the feedback information is included successfully The ratio of the number of times that the number of times of access is accessed with trial.
4. method according to claim 3, it is characterised in that any one in the network coverage when being successfully received During the Stochastic accessing bag that individual website is sent by the RACH, after described access point feedback acknowledgment frame, also include：
When the feedback information includes the number of times for attempting accessing, described access point record sends the website of the Stochastic accessing bag The number of times being successfully accessed.
5. the method according to claim 3 or 4, it is characterised in that described access point is according at least one for being properly received The feedback information entrained by Stochastic accessing bag that website sends, updates current random access parameter, including：
Described access point obtains the feedback information entrained by the Stochastic accessing bag that at least one website being properly received sends；
When the feedback information include attempt access number of times and be successfully accessed number of times when, described access point according at least One feedback information of website determines the average value of the number of times and ratio of the number of times for attempting accessing being successfully accessed；Or, work as institute When stating feedback information including the number of times for attempting access, described access point is successfully accessed according at least one website of record Number of times and the feedback information of at least one website determine the number of times that is successfully accessed with the ratio of the number of times for attempting accessing Average value；Or, when the feedback information includes the ratio of the number of times and number of times for attempting accessing being successfully accessed, the access Point determines that the number of times being successfully accessed is flat with the ratio of the number of times for attempting accessing according to the feedback information of at least one website Average；
The current random access parameter includes competition window values or access probability, when the number of times being successfully accessed is accessed with trial The average value of ratio of number of times when being more than first threshold, described access point reduces the contention window according to the first preset ratio Value, or increase the access probability according to the second preset ratio；
When the number of times being successfully accessed is less than Second Threshold with the average value of the ratio of the number of times for attempting accessing, the access O'clock increase the competition window values according to the 3rd preset ratio, or reduce the access probability according to the 4th preset ratio.
6. the method according to claim 3 or 4, it is characterised in that described access point is according at least one for being properly received The feedback information entrained by Stochastic accessing bag that website sends, updates current random access parameter, including：
Described access point obtains the feedback information entrained by the Stochastic accessing bag that at least one website being properly received sends；
When the feedback information includes the number of times attempted the number of times for accessing and be successfully accessed, described in described access point determination at least The ratio of the number of times that the number of times being successfully accessed of each website is accessed with trial in one website；Or, when the feedback letter Breath include attempt access number of times when, described access point according to record at least one website the number of times being successfully accessed with The feedback information determines the number of times being successfully accessed and the number of times for attempting accessing of each website at least one website Ratio；
Described access point is accessed according to the number of times being successfully accessed of current random access parameter and each website with trial Number of times ratio, calculate competition website quantity；
Described access point updates current random access parameter according to the competition website quantity for calculating.
7. method according to claim 6, it is characterised in that described access point is according to the competition website number for calculating Amount, updates current random access parameter, including：
The current random access parameter includes competition window values or access probability, and described access point is using the competition website quantity Corresponding numerical value update the competition window values；Or the inverse renewal access of the corresponding numerical value using the competition website quantity Probability.
8. a kind of method of adjustment of random access parameter, it is characterised in that including：
The website receives the random access parameter that access point sends；
When the website initiates Stochastic accessing, the website can be connect at random using the random access parameter selection for receiving The resource for entering sends Stochastic accessing bag, and the Stochastic accessing bag carries the feedback information of the website.
9. method according to claim 8, it is characterised in that the website receives the random access parameter of access point broadcast Before, also include：
Website receives the trigger frame of access point broadcast, and the trigger frame is used to indicating can Stochastic accessing comprising one or more The RACH of resource.
10. method according to claim 8 or claim 9, it is characterised in that the feedback information include attempting the number of times for accessing and The number of times being successfully accessed；Or, the feedback information includes the number of times for attempting accessing；Or, the feedback information is included successfully The ratio of the number of times that the number of times of access is accessed with trial.
11. methods according to claim 10, it is characterised in that described when the website initiates Stochastic accessing, it is described Website using receive it is described random connect parameter value selection can Stochastic accessing resource send Stochastic accessing bag after, also wrap Include：
When the acknowledgement frame of described access point feedback is not received in preset time range, the website updates the feedback letter The number of times that the trial in breath is accessed；Or, the website updates the number of times being successfully accessed in the feedback information With the ratio of the number of times for attempting accessing；Wherein, the acknowledgement frame is used to indicate described access point to be properly received institute to the website State Stochastic accessing bag；
The website resends the Stochastic accessing bag for carrying the feedback information after updating to described access point.
A kind of 12. access points, it is characterised in that including：
Updating block, for the feedback information entrained by the Stochastic accessing bag according at least one website transmission being properly received, Current random access parameter is updated, wherein, a Stochastic accessing bag is according to the current random access parameter by a website Selection can the resource of Stochastic accessing carry out transmitted during Stochastic accessing, Stochastic accessing bag carries a feedback letter for website Breath；
Transmitting element, for sending the random access parameter after the updating block updates to targeted sites, so that the target Website initiates Stochastic accessing according to the random access parameter after the renewal, wherein, the targeted sites are described access point net Whole websites or part website in network coverage.
13. access points according to claim 12, it is characterised in that
The transmitting element, is additionally operable to broadcast trigger frame in network coverage, and the trigger frame is used to indicate to include one Or multiple can Stochastic accessing resource RACH；
The transmitting element, is additionally operable to be successfully received any one website in the network coverage and passes through described random When accessing the Stochastic accessing bag that channel sends, feedback acknowledgment frame, the acknowledgement frame is used for the station for sending the Stochastic accessing bag Point instruction is properly received the Stochastic accessing bag.
14. access point according to claim 12 or 13, it is characterised in that the feedback information includes attempting the secondary of access Number and the number of times being successfully accessed；Or, the feedback information includes the number of times for attempting accessing；Or, the feedback information includes The ratio of the number of times that the number of times being successfully accessed is accessed with trial.
15. access points according to claim 14, it is characterised in that described access point also includes：
Recording unit, for when the feedback information includes the number of times for attempting accessing, ought successfully connect in the transmitting element When receiving the Stochastic accessing bag that any one website is sent by the RACH in the network coverage, feedback After acknowledgement frame, record sends the number of times being successfully accessed of the website of the Stochastic accessing bag.
16. method according to claims 14 or 15, it is characterised in that the current random access parameter includes contention window Value or access probability；The updating block includes：
First acquisition unit, for obtaining the feedback letter entrained by the Stochastic accessing bag that at least one website being properly received sends Breath；
First determining unit, during for including the number of times of trial access when the feedback information with the number of times being successfully accessed, according to The feedback information of at least one website determines the average value of the number of times and ratio of the number of times for attempting accessing being successfully accessed；Or Person, when the feedback information includes the number of times for attempting accessing, according at least one website of the recording unit records The number of times being successfully accessed and at least one website feedback information determine the number of times that is successfully accessed with attempt accessing time The average value of several ratio；Or, when the feedback information includes the ratio of the number of times and number of times for attempting accessing being successfully accessed When, the feedback information according at least one website determines that the number of times being successfully accessed is flat with the ratio of the number of times for attempting accessing Average；
First updating block, for the average value when the number of times being successfully accessed and the ratio of the number of times for attempting accessing more than the During one threshold value, reduce the competition window values according to the first preset ratio, or increase the access probability according to the second preset ratio；
First updating block, is additionally operable to when the number of times being successfully accessed and the average value of the ratio of the number of times for attempting accessing During less than Second Threshold, increase the competition window values according to the 3rd preset ratio, or connect according to described in the reduction of the 4th preset ratio Enter probability.
17. access point according to claims 14 or 15, it is characterised in that the updating block includes：
Second acquisition unit, for obtaining the feedback letter entrained by the Stochastic accessing bag that at least one website being properly received sends Breath；
Second determining unit, it is described for when the feedback information includes the number of times attempted the number of times for accessing and be successfully accessed Access point determines the number of times being successfully accessed of each website at least one website and the ratio of the number of times for attempting accessing； Or, when the feedback information includes the number of times for attempting accessing, at least one website of the described access point according to record The number of times being successfully accessed and the feedback information determine each website at least one website be successfully accessed time The ratio of the number of times that number is accessed with trial；
Computing unit, for being connect with trial according to the number of times being successfully accessed of current random access parameter and each website The ratio of the number of times for entering, calculates competition website quantity；
Second updating block, for according to the competition website quantity for calculating, updating current random access parameter.
18. access points according to claim 17, it is characterised in that the current random access parameter includes competition window values Or access probability；Second updating block updates the competition specifically for the corresponding numerical value using the competition website quantity Window values；Or the inverse renewal access probability of the corresponding numerical value using the competition website quantity.
A kind of 19. websites, it is characterised in that including：
Receiving unit, the random access parameter for receiving access point transmission；
Transmitting element, for when the website initiates Stochastic accessing, described being connect at random using what the receiving unit was received Enter parameter selection can the resource of Stochastic accessing send Stochastic accessing bag, the Stochastic accessing bag carries the feedback letter of the website Breath.
20. websites according to claim 19, it is characterised in that the receiving unit is additionally operable to receive access point broadcast Trigger frame, the trigger frame be used for indicate comprising one or more can Stochastic accessing resource RACH.
21. website according to claim 19 or 20, it is characterised in that the feedback information includes the number of times for attempting accessing With the number of times being successfully accessed；Or, the feedback information includes the number of times for attempting accessing；Or, the feedback information includes into The ratio of the number of times that the number of times that work(is accessed is accessed with trial.
22. websites according to claim 21, it is characterised in that the website also includes updating block：
The updating block, for when the acknowledgement frame of described access point feedback is not received in preset time range, updating The number of times that the trial in the feedback information is accessed；Or, the website updates the success in the feedback information The ratio of the number of times that the number of times of access is accessed with trial；Wherein, the acknowledgement frame is used to indicate described access point to the website It is properly received the Stochastic accessing bag；
The transmitting element, is additionally operable to be resend to described access point the Stochastic accessing bag for carrying the feedback information after updating.
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