CN2847709Y - Integrated circuit for executing radio resource management and self configurating cut-in point - Google Patents

Abstract

The utility model relates to an automatic allocation access point (AP) which comprises a measuring device, an automatic power and communication channel selecting device, a load balancing device, an interference management device and a link controller, wherein the measuring device measures a group of parameters of the environment of the AP, the automatic power and communication channel selecting device is used for receiving the parameters from the measuring device to decide the electrical level of transmitted power and makes use of the parameters as a base to select a communication channel, and the load balancing device is allocated in order to receive the parameters from the measuring device and makes use of the parameters as the base to balance the load between the Aps. The interference management device is used for receiving the parameters from the measuring device and makes use of the parameters as the base to compensate the interference. The link controller is used for receiving the parameters from the measuring device to monitor downlink quality and adjust the dispatch and the data rate of the AP.

Description

Carry out the integrated circuit of RRM and configuring access point voluntarily

Technical field

The utility model is the method and the system of the RRM (RRM) that generally speaking is relevant to WLAN, and more particularly, is relevant to the RRLM program of configuration (self-configure) network voluntarily.

Background technology

In known techniques, wireless communication system is known, and generally speaking, so system can be included in the communication platform that transmits to each other and receive wireless communication signals, and typically, according to the kenel of system, the communication platform can be one of them of two kinds of kenels: base station or comprise the wireless transmission/receive unit (WTRUs) of mobile unit.

In this employed this noun base station is to include, but not limited to a base station, a Node B, a positioner, an access point, or other interface arrangement in the wireless environment that WTRUs is provided by the radio access of a network of being correlated with in this base station.

Comprise at employed this noun WTRU, but be not subject to, one subscriber equipment, one moves platform, one fixing or moving user unit, calling set, or the device that can in a wireless environment, operate of any other form, for example, phone, video telephone, and insert phone (Internet ready phones) by the world-wide web that network connects, in addition, WTRUs also comprises portable personal computing device, for example, and PDAs, and the mobile computer with radio modem of similar network capabilities, and Portable, perhaps can differently change the mobile unit that is that the WTRUs of position then claimed.

Typically, one base station network can be provided at each place, base station that can conduct concurrent radio communication by the WTRUs of suitably construction, and some WTRUs in addition construction with direct conduction in to each other radio communication, that is, do not needing to be undertaken under the situation that the branch journey transmits by a network via a base station, and this be claimed usually for reciprocity radio communication (peer to peer wirelesscommunications), WTRUs be can by network and point-to-point communication ability both and be configured as in a plurality of networks and used.

A kind of wireless system of kenel wherein, a so-called WLAN (WLAN), can be configured as and be equipped with the radio communication of WLAN modulator-demodulator to conduct, and wherein, these WLAN modulator-demodulators also are to conduct with the peer-to-peer communications of WTRUs by same the outfit, and in a WLAN, what a WTRU was claimed is a platform, and a base station claimed is an access point.

Two kinds of radio communications with advantage are arranged: a foundation structure (infrastructure) pattern and a special pattern in WLANs and other network.In this foundation structure, WTRUs can conduct radio communication to a base station of the access point of this network infrastructure via acting as, and, these communication meetings are coordinated and synchronization by this base, so configuration in WLAN background scope then is that also to be claimed is a Basic Service Set (basic service set, BSS), moreover, with respect to this infrastructure mode, this special pattern can't be used this network infrastructure, and this special pattern is to operate with point-to-point communication, and is to be referred to as one " Independent B SS ".

One common has one, or the WLAN environment of a plurality of WLAN access points, that is, the base station, can be set up according to IEEE 802.11 families of standard, the typical case's application that is used for the system of this kenel then is (for example to comprise focus (hot spot), the airport), family uses, and office uses, in addition, along with becoming, increasing these systems have more advantage, also just more need to simplify the operation of these systems and keep, and, many present systems can need the user to have important special knowledge and understanding, in an office environment, the one radio-cell person of planning is the deployment that need plan this system, to avoid interference and the problem of capacity, as in a home system, one user must have enough knowledge, to avoid other home devices, for example, blue bud device, microwave oven, radio telephone, and other contiguous wlan system, interference, but, owing to being in the nature of disturbing, also therefore hinting the user of tool experience along with the time changes, or the radio-cell person of planning will need periodically to adapt to, with the interference antagonism in changing with this, certainly, this is unpractical, also therefore, be to have the demand of managing this wlan system automatically as the basis with the environment in this change, so the utility model will be reached two purposes: (1) disposes voluntarily and disposes easily, and capacity of (2) increase and continuous covering scope.

In order to make configuration voluntarily and to dispose easily, it is need provide when opening to select desirable operating parameter automatically, for example, one access point (AP) of through-put power, frequency, measuring energy critical value etc., therefore, need be minimum or not have from the configuration data that installation procedure (installer) obtains, in addition, it is to need this AP periodically to monitor its environment, and, adjust these various parameters, with idealized aggregate throughput (aggregate throughput) and continuous and expected coverage is provided.

The utility model content

The purpose of this utility model provides a kind of configuring access point voluntarily (AP) and a kind of integrated circuit of carrying out RRM, to manage the Radio Resource in the WLAN independently.This voluntarily configuring access point comprise a measurement mechanism, one automated power and channel selector, one load balance device, one interference management device, an and link controller, wherein, this measurement mechanism is configured to one group of parameter of an environment of measuring this AP, this automated power and channel selector are configured to the parameter of reception from this measurement mechanism, the decision transmission power level, and utilize these parameters as the basis and selective channel, this load balance device is configured to the parameter of reception from this measurement mechanism, and utilize this group parameter to be equilibrated at a load between the APs as the basis, this interference management device is configured to reception this group parameter from this measurement mechanism, and utilizes this group parameter to compensate outside and inner interference as the basis, and this link controller is configured to reception this group parameter from this measurement mechanism, monitor down link quality (downlink quality), and adjust scheduling and data transfer rate in this AP place.

A kind of RRM (the radio resource management of execution in having a WLAN (WLAN) of an AP and a platform that be configured to, RRM) integrated circuit is to comprise: current data stream channel monitoring device, one measurement mechanism, an and management devices, wherein, this current data flow channel monitoring device is configured to the one first group parameter of acquisition from current data stream channel, this measurement mechanism be configured to from the measured value of all available channels as one second group of parameter, and this management devices is configured to this first and second group of parameter of reception, and by optionally arousing at least one RRM algorithm that uses at least one parameter, and manage these Radio Resources of this WLAN independently.

Because existing access point needs the user's of this access point partial information to come the scheduling of planning system, to avoid disturbing the problem with capacity.Via access point provided by the utility model, just can select the optimal operations parameter automatically, for example through-put power, frequency, measuring energy critical value etc., and need not be from user's input information; In addition, this access point can periodically be monitored its environment, and adjusts operating parameter so that total system is gathered optimization, and continuous and expected covering is provided.Via the utility model, the user need not obtain the relevant information about assembly how to carry out WLAN, can reach the optimization of WLAN operation.

Description of drawings

Of the present utility model one more detailed descriptionthe be can obtain from the next narration of a preferred embodiment of usefulness as an example, and can be in conjunction with appended graphic and obtain to understand, wherein:

Fig. 1: it is the general view that shows according to RRM calculation configuration of the present utility model;

Fig. 2: it is the sequential general view that this shown in the displayed map 1 RRM calculation is disposed;

Fig. 3: it is a top view that shows a system layout that is used for an external disturbance use-case;

Fig. 4 A and Fig. 4 B: it is to be presented in the use-case shown in Figure 3 the flow chart of the action that access point is taked;

Fig. 5: it is to show one with the top view of office as the meeting room use-case on basis;

Fig. 6: it is to be presented in the use-case shown in Figure 5 the flow chart of the action that get at the access point place;

Fig. 7: it is a block diagram that shows according to the utility model one access point of in addition construction; And

Fig. 8: it is to show a block diagram of carrying out an integrated circuit of RRM according to the utility model.

Embodiment

The utility model is for can integrally making the ideal execution of a wlan system become a possible distributed radio resource management (RRM) system, the utility model is to operate in the scope of ensuing restriction: fully in compliance with 802.11a/b/e/g, there is not AP to intercom mutually, coexist with typical A Ps, to platform do not have specific demand (that is, there is not special metrical information) from these platforms, and there is not the controller concentrated, yet, the utility model is not limited to these restrictions, and, if be can be in one of them of these restrictions, or be removed Shi Weike more and use.

Judgement of the present utility model be receive and monitor with this AP as the basis.The action that each these other APs taked can't be united and be formed a chaotic and unsettled system, this system is designed to each AP can operate with other APs, even when intercoming mutually between AP is not used, the utility model is to comprise four principal characters: automated power and channel selection, load balance, interference management and binding control, these four features then are operate together together, to form a highly efficient and solid RRM system.

I. automated power and channel are selected

When this AP is activated, and during steady state operation, the capital uses automated power and channel to select (Automatic power and channel selection, APCS), this feature then is can automatically determine baseline overlay area (baseline coverage area) and in opening the channel of establishing immediately, after this, it is monitoring environment on every side periodically, when needs are arranged, (for example to adjust these parameters, when a new AP has environment, install, or when separating the entity installed and change), this baseline overlay area is can be corresponding to receiving coverage can be provided to platform in its scope zone, and can define with regard to the consume aspect, path of its edge, be referred to as the baseline scope, wherein, this inherent parameter is that these can obtain channel and assess AP since then to the path consume discovery procedure of this path consume of contiguous APs and determined by monitoring by meeting, moreover, this baseline scope is one of them of this three inputs in the time of can being used as through-put power before setting the deserving of this AP, other two inputs are determined with avoiding feature (the interference compensation and avoidance feature) by load balance feature (the load balancing feature) and this interference compensation, in addition, these input meeting addressing adjustment in the overlay area respectively, and needed received power, this baseline scope is one of them that also is used as several inputs when setting this measuring energy (ED) critical value, wherein, this measuring energy critical value is to be used to this AP in order to determine when to attempt transmitted in packets and to receive among employed clear channel assessment (CCA) (CCA) program.

II. load balance

Load balance is to be used to the load that balance is crossed over APs and frequency channels, it then is to comprise two complementary mechanisms, AP load balance and channel loading balance, wherein, the AP load balance is this overlay area that can adjust this AP, one scope adjustment be can be used in setting deserve before through-put power the time, to proofread and correct, ignore employed these frequency channels of these AP in this load of this selected AP and the serious imbalance between this load in contiguous APs.

The main use-case of this feature is to be a rally space communication definition, at this, a stack of people's of short duration time durations of can in a meeting room, gathering, this feature can be by this overlay area that temporarily increases these contiguous APs and this coverage that reduces this AP that this meeting room regional service is provided, this provides this of AP of service to increase load and help management, this feature is that advantage can be provided in two ways: the current platform that provides of the AP of this severe load is to be subjected to better service by these are close to one of them of APs, and the current platform in this severe load AP will and have better access for medium owing to one or more platform of these contiguous APs of unloading, and this communication definitions will be in next more detailed discussion is arranged.

The channel loading balance is to be used to the load of gradeization at the different frequency interchannel, and this is carried out by periodically being evaluated at the load among the APs that uses different channels, in addition, use a decision of the employed frequency channels of contiguous APs of slight load to be adopted, and, the change meeting of channel does not have to carry out in the activity in this BSS of service that this AP provides, at this, two kinds of load balance mechanism all are independently, and, be not cross over channel and/or APs and provide in the communication definitions for balance and have constructive improvement in this load.

III. interference compensation with avoid

Interference compensation can be used to compensate outside and inner interference with avoiding (ICA), and the feature of this ICA then is to comprise three programs: interference assessment, quick interference assessment and frequency are selected to escape at a slow speed.

Generally speaking, the purpose of interference assessment is to be to assess lentamente and continuously the required quality accepted of received power at a slow speed, and one of them of three inputs when this required received power can be used as through-put power before setting the deserving of this AP, and this is carried out by the transmission of monitoring success and failure, with decision this received power, and then reach an acceptable data transfer rate at these platform places.

Purpose as for this quick interference assessment program then is to be promptly to adjust this required received power, with unexpected and a large amount of change in the externally interference of being responsible for being caused owing to microwave oven, elevator etc., and when not detecting any grouping, this interference then is that (received signal strength indicator RSSI) is determined by this received signal strength indicator of monitoring in meeting.

In addition, just experiencing too high congestion state or ought disturb at this BSS is for when can not put up with, will attempt to select another frequency channels, it then is to monitor retardation rate (deferral rate), packet error probability (PER) and interference that this frequency channels is escaped program, in addition, because changing this frequency channels is to need break in service, also therefore,, this channel just can change if only can working as when this current load and/or interference can't be supported.

IV. link control

Link control and be used in the down link quality (downlinkquality) that this channel of monitoring is discovered, and be used for the scheduling (scheduling) and this data transfer rate, linking control then is to comprise two programs: rate controlled and dispatcher software (scheduler), wherein, rate controlled can be adjusted this data transfer rate as the basis to have discovered quality at this of this platform place, replying of missing will reduce real time rate (instantaneous rate), one speed is replied program and also can be existed, to reply the speed in definite response, in addition, the current load of this of these medium will influence the speed that speed reduces and replys.

This dispatcher software can be attempted by comparing that the higher priority of low data-rate transmission gives higher data-rate of transmission and the use that maximizes these medium, because for identical data volume, lower data rate transmission will be used than more these medium of this higher data-rate of transmission, therefore, just maximize the output aspect, more advantageously give higher data-rate of transmission higher priority, yet, this scheduling but may cause unacceptable delay to this lower data rate platform, so, in order to minimize this delay, the current delay of this of this lower data rate user meeting this priority when selecting grouping next to be sent is considered.

This 802.11e standard is to make the priority treatment order of delay-sensitive services can be higher than other, for example, voice and video flowing, in addition, permission control and then be to allow this AP in a preferential order to handle and manage the requirement of these medium of use that platform proposed as the scheduling on basis with 802.11e, but these functions then are to help this AP to understand this maximum holding load on one's own initiative, and, in 802.11e, this platform can be by providing information, for example, needed average data rate, and to the access of these medium, this then is to help this AP to be evaluated at current and following load on these medium, with the correct permission control decision of activation.

V. calculation is disposed overview, is influenced each other and sequential

Fig. 1 is for showing an overview of a RRM system 100 that is disposed according to the utility model.The input of this system 100 is the activity data stream (live traffic) that stems from current channel 102, and performed measurement 104 during a silent period (silent period), wherein, these measure 104 is to carry out when this AP transmits, and, be to cross over all can obtain channel ground and carried out, in addition, these inputs 102,104 can be supplied to each algorithm 110-122 that forms this integral body RRM system 100, in Fig. 1, these rectangles be representative arrive/from this scheduling algorithm, or the input of program and output, and these rectangles that become circle are to represent algorithm and/or program.

Need comparatively speaking the program in reaction time more rapidly, for example, rate controlled/scheduling, power control (interference assessment fast), EDT control, and frequency is selected to escape, be the data flow that to monitor from this current channel, as for these remaining programs, for example, power control (the path consume is found), power control (load balance), and the frequency with slower comparatively speaking reaction time selects idealizedly, then is to rely on the performed measurement of this silent period, moreover, these inputs and output are to coordinate fully between these each algorithms and program, for example, and this current scope that this path consume discovery is determined, with the load balance program, be that meeting is controlled by EDT and frequency is selected to be used.

One rate controlled/dispatching algorithm 10 is reply (ACKs) that can receive from this current channel 102, the CCA critical value, and this transmission data rate, this rate controlled/dispatching algorithm 110 will be set this transmission data rate of considering this current operating condition with attempting, and since its almost be (be less than 1 second usually) immediately and react to packet error probability (that is, one, or two measure ACKs) and channel usage, therefore, its the effect almost be and other program between independently of each other, in addition, more because its operating environment can be subjected to attempting improving the influence of these other programs of this transfer rate, thereby make that average this transfer rate that goes up is high, for example, this power control (ICA) algorithm 112 is can attempt to adjust this power with each factor that comprises average data rate as the basis.

One power control (ICA) algorithm 112 is the RSSI numerical value that can receive from this current channel 102, ACKs, this transmission data rate, the CCA critical value, and be the rssi measurement value and the CCA critical value that can receive from these silent periods measurements 104, and, this power control (ICA) algorithm 112 is to assess and to adjust the interference of having discovered at these platform places, and produce the required numerical value of received power 130, this magnitude of power 130 then is to be delivered to a first adder 140, this power control (ICA) algorithm 112 then is to comprise two parts: fast power control and slow power control, wherein, this fast power control algolithm is that response reaches unexpected interference in a large number and produces reaction, it is the measured value that can be collected on this current channel 102, and be periodically to operate (approximately per second), or in the time of needs, adjust this required numerical value of received power 130, as for this slow power control algolithm then is can be based on discovering quality at this of this platform place and making a response, it is the measured value that can be collected on this current channel 102, and is periodically to operate (approximately per minute), be released and in the time of needs, adjust this required numerical value of received power 130.

One power control (the path consume is found) algorithm 114 is can receive the RSSI silent period to measure 104, and, this power control (path consume discovery) algorithm 114 is the overlay areas of should idealizing that can determine this unit by monitoring these the contiguous AP transmission on all channels with attempting, the scope of this unit can be independent of outside employed this frequency channels, and be this path consume that to depend on these contiguous APs, moreover, this power control (the path consume is found) algorithm 114 is to produce a baseline range values 132, and this numerical value can be delivered to a second adder 142, so, when this system is in a stable state, this algorithm 114 can periodically be collected these silent periods and measure 104, and can upgrade this baseline range values 132, then, at new AP between the discovery period, this algorithm 114 is can be collected in during this silent period, measured value from this new AP, and can upgrade this baseline range values 132, and, this new AP will more normal transmission voice packets (loud packets), this then is to have needed acquisition time to be reduced to about one minute this, in addition, one power control (load balance) algorithm 116 is the duration of can receiving from the RSSI numerical value of this current channel 102 and grouping, and 104 ACKs and CCA critical value are measured in reception from these silent periods, and, this power control (load balance) algorithm 116 is to be used to adjust this overlay area, to proofread and correct this load in this AP and the serious imbalance between the load in contiguous APOs, simultaneously, load balance is to cross over APs and carried out, and be to be independent of outside this frequency channels, moreover, this power control (load balance) algorithm 116 is can produce a scope to adjust numerical value 134, and it can be delivered to this second adder 142.

One measuring energy critical value (EDT) control algolithm 118 is the packet error probability (PER) and the retardation rate information that can receive from this current channel 102, and, this EDT control algolithm 118 is to attempt to determine an EDT critical numerical value 154, thereby make that transmission packets and reception can be by idealized, and this be mainly with PER and retardation rate as the basis, moreover, this EDT critical numerical value 154 can be subjected to this current scope of this unit and the constraint of this receiver susceptibility, and this algorithm is to carry out quickly comparatively speaking, so that it can be independent of outside the performed action of other program, in addition, it is to cause EDT that this EDT critical value is reset to this minimum value (receiver susceptibility) that one frequency channels changes, so, in this current range values 150, influence these power control algorithms 114 of this current setting of this EDT critical numerical value 154 by meeting, the 116 any changes that caused will all can be adjusted in the scope in about 1 second.

It is the rssi measurement values that can receive from these silent periods measurements 104 that one frequency is selected (idealizing) algorithm 120, the CCA critical value, and ACKs, and, it is to be used to idealize the use of these the obtained channels between APs that this frequency is selected (idealizing) algorithm 120, at this, it is can carry out to cross over channel but not a kind of load balance of APs, this then is to guarantee that it is independently that this power control (load balance) algorithm 116 and frequency are selected 120 these the performed actions of (idealizing) algorithm, and no conflict occurred, for example, these power control algorithms are performed, in order to increase, or an action that reduces this overlay area of an AP is as the basis with the measurement of crossing over all channels, also therefore, be that any channel that obtains for this AP all is can be effective, in addition, when this frequency selects (idealizing) algorithm 120 not have activity on this current channel, change to a new current channel 156.

It is the PER and the retardation rate information that can receive from this current channel 102 that one frequency is selected (escaping) algorithm 122, and 104 RSSI numerical value is measured in reception from these silent periods, CCAs, and ACKs, and, this frequency selects (escaping) algorithm 122 increasing this AP power (fast and interference assessment) at a slow speed, this ED critical value of increase/minimizing (EDT control), or reduce transmission data rate (rate controlled/scheduling) can helpful situation under, to interference and congested making a response that can't TL, and, as long as this frequency is selected (escaping) algorithm 122 in case aroused, just big appointment was made a response in 30 seconds, and change to a new current channel 156, say again, after in case this current channel 156 has changed, then before selecting a new channel, promptly can carry out about 5 a minutes random back-off (random backoff), in addition, this second adder 142 is this baseline scope 132 and this scope can be adjusted 134 as input, and produce a current range values 150, then, this 150 of current range values is can be used as to use this required received power 130 to supply with as this second input of this first adder 140 of one first input, and produce a through-put power numerical value 152, in addition, this current range values 150 also can be supplied to this EDT control algolithm 118 as an input, this channel is selected (idealizing) algorithm 120, and this frequency selects (escaping) algorithm 122, as closing before that the algorithm that is connected in respectively narrates.

Fig. 2 is the frequency of operation that shows these various algorithms.The utility model is designed to change environment to it to make comparatively speaking reaction more rapidly, new APs is that big appointment was found in 1 or 2 minute, and this system be can be within 5 minutes the serious imbalance of balance, with addressing, for example, be somebody's turn to do " rally space " communication definitions, in addition, the fast reaction algorithm, for example, frequency is selected to escape, and then is to make a response to serious disturbance or congestion state in the scope in 10 seconds.

VI. use-case 1: serious external disturbance

Ensuing use-case is to illustrate a serious external disturbance.The basic network layout is illustrated among Fig. 3, and at this, four APs (BSS 1 to BSS 4) are to be set among the building of one 50m * 50m, and AP 4 is set to be in close proximity to kitchen, a small office, and is to have a microwave oven at this.

Some hypothesis is based on the interference that is produced by this microwave oven, and be as the basis with the experience test, at this, this interference that this microwave oven produced is the highest at channel 11, and very low in channel 1, in addition, this interference only has when the position and can't support near this microwave oven (that is, in the scope of BBS 4) Shi Caihui very much.

Before use of microwave ovens, this system can be in following state: all BSSs can be in similar medium load operation, and has the height satisfaction that all is provided with the platform of serving; All APs can transmit at the 5dB place that is lower than its maximum power setting; And all platforms can transmit at the maximum power place.

This internal channel configuration of each BSS provides among table 1.

Table 1: the internal channel configuration of each BSS

BSS ID	Internal channel
		1	11
2	1
		3	6
4	11

In case after this microwave oven was unlocked, BSS 4 will discover an annoyance level that can not put up with, Given this, these annoyance levels in BSS 1 and BSS 3 are to increase.

Among AP 1 and AP 3, be that following event sequence can take place, shown in Fig. 4 A.This annoyance level of having discovered is can be owing to microwave radiation increases, and, for APs and platform both, the about every floor of the receiver noise 3dB (step 402) that can rise, packet transport error is can go up at down link (DL) to be discovered (step 404), immediately, this rate control algorithm is can attempt and will solve this interference problem (step 406) by reducing this packet transmission rate, this power control (interference assessment) algorithm is the increase that can understand in interference, and increase this AP through-put power (step 408) of 3dB, finally, rate controlled promptly can be replied these original transfer rates (step 410) of each platform.

In AP 4, be that following event sequence can take place, shown in Fig. 4 B.This has discovered annoyance level is seriously to increase owing to microwave radiation, for APs and platform both, the about every floor of the receiver noise 20dB (step 420) that can rise, and on this DL and up link (UL), can discover many packet transport error (step 422), immediately, this rate control algorithm promptly can reduce those speed (step 424) of all platforms, then, this power control algorithm can be understood the increase in interference, and this AP through-put power can be increased to this maximum AP through-put power (step 426), yet, owing to still can perceive a too high packet error probability, therefore, this frequency is selected to escape algorithm and can be triggered, so, these AP channels are to change its channel, self-channel 11 to the interference that this microwave oven produced can be gone up many channels 1 (step 408) less, then, all platforms can carry out decorrelation, and it is last, again produce correlation (step 430), and this power control algorithm is can discover annoyance level according on channel 1 this to reduce this through-put power (step 432).

The final channel configuration of each BSS provides among table 2.

Table 2: the final channel configuration of each BSS

BSS ID	Final channel
		1	11
2	1
		3	6
4	1

VII. use-case 2: rally space communication definition (Meeting Room Scenario)

Suppose, there are 4 AP wlan systems to cover the area of a 50m * 50m, therefore, the big appointment of each AP covers 25m * 25m, moreover this area is mainly to be divided into the office with a large conference room and a little meeting room, and each office is not single or double office, each employee also has a laptop computer that comprises the WLAN access, then is that big appointment is placed among each quadrant of this area as for APs, as shown in Figure 5.

In this communication definitions these mainly suppose be for, these APs can be equably, each bears 1/4th ground of this total load, carry out balance, and first meeting is operated on these channels, as shown in table 3, this total load on each AP is for a spot of, approximately is 10% of the employed utilizable energy power of this AP.

Table 3: the initial channel configuration of each AP

Quadrant	Initial channel
		Upper left(ULQ)	1
Upper right(URQ)	6
		Lower left(LLQ)	11
Lower right(LRQ)	1

Then, be that ensuing incident and action can take place, as shown in Figure 6.One large-scale rally is to hold in these two conference spaces of this ULQ, therefore, this load meeting of this ULQ AP suddenly increases owing to this energy that has increased, and simultaneously, load in other quadrant then is to reduce (step 602), then, within 5 to 10 minutes, power control (load balance) promptly can be collected enough to determine that it need be in order to reduce the measured value (step 604) of this scope that is affected the unit, similarly, these contiguous APs also can detect a load that increases in this ULQ, and therefore meeting increase the scope (step 606) of its APs, this then be because, the load in their coverage is a spot of, so, they can have the ability to be engaged in the relation of this task, therefore, the increase of through-put power can be of value to immediately, although the present position is comparatively unfavorable, but still be connected to one of them those platforms of these contiguous APs by decision.

Abreast, this frequency in this LRQ AP (it is to use the channel identical with this ULQ AP) is selected to idealize and can be found that also energy at this channel that the energy on other channel can used than it is many little, and can make this frequency shift to the channel 6 or the decision (step 610) of channel 11, but, Shi Ji change will only can not worked as when having activity among this LRQ AP and just can be held.

Platform in these fringe regions of this ULQ is can be again to produce connection (step 612) with these other AP quadrant, some platforms then are to comprise built-in load balance feature, and can work as this overlay area when being increased, then select the AP of a less load easily.

These aforesaid RRM algorithms can be utilized by an AP, and these members of the AP of this execution RRM are to be a single integrated circuit (IC), for example, the integrated circuit of one special applications, multiple ICs, discrete elements, or a combination of IC (s) and discrete elements.

VIII. be configured to and carry out an access point of the present utility model

According to the AP 700 that the utility model was disposed is to be shown among Fig. 7, this AP 700 comprises a measurement mechanism 702, be configured to one group of parameter of an environment of measuring this AP, one automated power and channel selector 704, by construction to receive these parameters from this measurement mechanism 702, and with these parameters as the basis and decision through-put power degree and selective channel, one local equilibrium's device 706, by construction to receive this group parameter from this measurement mechanism 702, and utilize this group parameter as the basis, but do not utilize communication mutual between AP, and be equilibrated at a load between the APs, one interference management device 708, by construction to receive this group parameter from this measurement mechanism 702, and utilize this group parameter as the basis and the outside and inner interference of compensation, an and link controller 710, by construction to receive this group parameter from this measurement mechanism 702, monitor the down link quality, and be adjusted at scheduling and data transfer rate among this AP.

IX. be configured to the integrated circuit of execution according to RRM of the present utility model

Fig. 8 shows to be configured to the integrated circuit (IC) 800 of execution according to RRM of the present utility model.This IC 800 comprises current data stream channel monitoring device 802, be configured to the one first group parameter of acquisition from current data stream channel, one measurement mechanism 804, be configured to from all exploitable channels measured value of taking, to obtain one second group of parameter, an and management devices 806, it is this first group of parameter that can receive from this supervising device 802, and from this second group of parameter of this measurement mechanism 804, wherein, this management devices 806 by construction with these Radio Resources of managing this WLAN independently by optionally arousing at least one RRM algorithm that uses at least one parameter.

Though feature of the present utility model and assembly are narrated with special combination, but, each feature, or assembly is all to use (under further feature that does not need these preferred embodiments and assembly situation) individually, or with, or not with further feature of the present utility model and assembly, moreover, when showing and narrating specific embodiments of the present utility model, many modifications and variation are can also be by the people who has the knack of this skill, finish at the following of the situation that does not break away from category of the present utility model, the narration of front is the usefulness that illustrates as an example, and, can in any mode, not limit the utility model.

Claims (2)

1. configuring access point voluntarily, this access point is to carry out RRM in a WLAN, it is characterized in that, this access point comprises:

One measurement mechanism, it is configured so that measure one group of parameter of an environment of this access point;

One automated power and channel selector, it is connected to this measurement mechanism, and is configured to the parameter of reception from this measurement mechanism, and is configured to the decision transmission power level and utilizes these parameters as the basis and selective channel;

One load balance device, it is connected to this measurement mechanism, and is configured to the parameter of reception from this measurement mechanism, and is configured to and utilizes this group parameter as the basis but do not utilize communication mutual between access point, and is equilibrated at the load between access point;

One interference management device, it is connected to this measurement mechanism, and is configured to reception this group parameter from this measurement mechanism, and is configured to and utilizes this group parameter as the basis and the outside and inner interference of compensation; And

One link controller, it is connected to this measurement mechanism, and is configured to reception this group parameter from this measurement mechanism, and is configured to monitoring down link quality, and the scheduling and the data transfer rate that are adjusted at this access point.

2. integrated circuit of carrying out RRM, this integrated circuit is to carry out RRM in the WLAN with an access point and a platform, it is characterized in that this integrated circuit comprises:

One current data stream channel monitoring device is configured in current data stream channel and obtains one first group of parameter;

One management devices, it is connected to this current data flow channel monitoring device, and is configured to reception this first group of parameter from this current data flow channel monitoring device;

One measurement mechanism, it is connected to this current data flow channel monitoring device, and be configured so that obtain measured value during the silent period when this access point transmits from all available channels, with described measured value as one second group of parameter, and

This management devices is configured so that receive this second group of parameter from this measurement mechanism, and this management devices can be aroused RRM calculation formula and be aroused wireless resource management algorithm continuously as the basis with the result who utilizes a previous executed wireless resource management algorithm and produce by construction, manages these Radio Resources of this WLAN independently by optionally arousing at least one wireless resource management algorithm that uses at least one parameter.

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