CN101252379A - Wireless network medium access control system and channel parameter regulation method - Google Patents

Abstract

The invention discloses a wireless network media access control system and the channel parameter adjusting method of the system. The system comprises a base station and a terminal; the terminal comprises a measuring module used for measuring the downlink channel information and storing the channel information in the channel information table and a feedback module used for calculating the channel information statistical value, constructing the report message of the channel information and sending the feedback report message to the corresponding base station; the base station comprises a request module used for selecting a feedback mode, constructing the request message of the channel information and sending the request message to the terminal when the base station requests the terminal to send the current feedback channel information; the base station comprises a first adjustment module used for controlling the physical layer to adjust the downlink transmission power and a second adjustment module used for determining the power value needed to be adjusted of each terminal, storing the power adjusted value and the identification of the corresponding terminal in the uplink power adjustment table, counting the number of the terminals needed to be adjusted in power and adjusting the uplink transmission power of the corresponding terminal. The wireless network media access control system and the channel parameter adjusting method of the system make the wireless network media access control be well realized.

Description

A kind of wireless network media access control system and channel parameter regulation method thereof

Technical field

The present invention relates to wireless communication technology field, particularly relate to a kind of wireless network media access control system and channel parameter regulation method thereof.

Background technology

Wireless MAN (802.16 WirelessMAN) is that a kind of broadband network that can provide high-speed radio to insert in the metropolitan area scope (is seen Carl Eklund, Roger B.Marks, " IEEE Standard 802.16:A Technical Overview of the WirelessMANTM Air Interface for BroadbandWireless Access ", IEEE C802.16-02/05,2002).IEEE 802.16 working groups have issued IEEE Std 802.16-2004, this standard definition wireless MAN BWA air interface physical layer (PHY) and media access control layer (MAC) standard on October 1st, 2004.

IEEE Std 802.16e is in February, 2006 issue, this standard definition the air interface specification of mobile wide-band wire-less accessing system.

But, 802.16 agreement, be only to have proposed several feedback of channel information modes and general Poewr control method in the wireless MAN consensus standard, do not provide the workflow of feedback of channel information and the specific implementation of power control, make its wireless network media access control not realize well.

Summary of the invention

Problem to be solved by this invention is to provide a kind of wireless network media access control system and channel parameter regulation method thereof, and it makes the wireless network media access control to realize well.

A kind of wireless network access control system for realizing that the object of the invention provides comprises base station and terminal, and described terminal comprises measurement module and feedback module, and described base station comprises request module, first adjusting module and second adjusting module, wherein:

The measurement module of described terminal is used for descending channel information is measured and stored the channel information table into according to area type;

The feedback module of described terminal is used for the feedback request according to the base station, calculating channel Information Statistics value, and structure channel information reporting message, feedback of down channel information is given relevant base station;

The request module of described base station is used for selecting a kind of feedback system when the base station requires terminal to feed back current channel information, and structure channel information request message sends to terminal;

First adjusting module of described base station is used for the descending channel information according to frame information and terminal feedback, and the control physical layer is adjusted down transmitting power;

Second adjusting module of described base station, be used for according to uplink channel information, determine the performance number that each terminal need be adjusted, and the sign of power adjustment and corresponding terminal is kept in the ascending power adjustment tabulation, when the power adjustment of all terminals has been determined in the base station, statistics need be adjusted the terminal number of power, according to the difference of number in different ways, adjusts the uplink transmission power of corresponding terminal.

The first order of described channel information table comprise RSSI formation, default CINR formation, according to the CINR formation of area type tissue, according to area type and channel use the CINR formation of bitmap tissue, according to the CINR formation of leading types of tissue.

A series of nodes are safeguarded in described RSSI formation, and each node comprises the RSSI value of frame number and this frame, and described RSSI formation comprises the territory of expression RSSI average and standard deviation simultaneously, is used to store statistics;

A series of nodes are safeguarded in described default CINR formation, and each node comprises the CINR value of frame number and this frame, and described default CINR formation comprises the territory of expression CINR average and standard deviation simultaneously, is used to store statistics;

Described CINR formation according to the area type tissue comprises a series of nodes, each node inclusion region type field and CINR formation, and described CINR formation according to the area type tissue is identical with described default CINR formation;

Described CINR formation according to area type and channel use bitmap tissue comprises a series of nodes, each node inclusion region type field, channel use bitmap and CINR formation, and described CINR formation according to area type and channel use bitmap tissue is identical with described default CINR formation;

Described CINR formation according to leading types of tissue comprises a series of nodes, and each node comprises leading type field and CINR formation, and described CINR formation according to leading types of tissue is identical with described default CINR formation.

Described feedback system is the quick feedback system of CQICH, REP-REQ feedback system and feedbackpolling IE message request feedback system.

Described terminal also comprises the feedback timer, is used for the feedback of channel information of property performance period;

When the feedback module of terminal receives CQICH allocation IE, the parameter of this information unit is resolved and write down to this information unit, create the feedback timer, reset feedback timer or deletion feedback timer according to the parameter of this information unit, the feedback marks of terminal then; In the time of the feedback timer expiry, feedback module carries out statistical computation to channel information, and the structure feedback message sends to the base station.

Described difference according to number is adjusted the transmitting power of corresponding terminal in different ways, for:

If be 0, expression does not have terminal need adjust power, and processing finishes;

If be 1, expression has only a terminal need adjust transmitting power, uses PMC-RSP message to control single terminal and adjusts transmitting power, and processing finishes;

If greater than 1, expression has a plurality of terminals need adjust transmitting power, uses FPC message to control a plurality of terminals and adjusts transmitting power, and processing finishes.

For realizing that the object of the invention also provides a kind of wireless network access control system channel parameter regulation method, comprise the following steps:

Steps A, terminal are measured descending channel information and are stored in the channel information table according to area type;

Step B when the base station requires terminal to feed back current channel information, selects a kind of feedback system, and structure channel information request message sends to terminal; Terminal is according to the feedback request of base station, and calculating channel Information Statistics value is constructed channel information reporting message, and feedback of down channel information is given relevant base station;

Step C, the base station is according to the descending channel information of frame information and terminal feedback, and the control physical layer is adjusted down transmitting power;

Step D, the base station is according to uplink channel information, determine the performance number that each terminal need be adjusted, and the sign of power adjustment and corresponding terminal is kept in the ascending power adjustment tabulation, when the power adjustment of all terminals has been determined in the base station, statistics need be adjusted the terminal number of power, according to the difference of number in different ways, adjusts the transmitting power of corresponding terminal.

In the described steps A, described terminal storage descending channel information comprises the following steps: to the channel information table

Steps A 1 obtains the channel information parameter from physical layer, comprises CINR, RSSI, frame number, type, and terminal preserves the information of N frame at most, enters steps A 2;

Steps A 2 is asked mould with frame number to N, supposes to obtain mould value n, enters steps A 3;

Steps A 3, at first in the RSSI formation inquiry whether frame number is arranged is the node of n, if find, with the content of new this node of RSSI information updating;

If do not find, then create a new node, the frame number assignment is n, the RSSI value is composed and is new RSSI value, and this node is added in the RSSI formation;

Enter steps A 4;

Steps A 4, whether frame number is arranged is the node of n in inquiry in the CINR formation, if find, with the content of new this node of CINR information updating;

If do not find, then create a new node, the frame number assignment is n, the CINR value is new CINR value, and this node is added in the default CINR formation;

Enter steps A 5;

Steps A 5, the channel information type T according to obtaining from physical layer, carry out following operation:

If T belongs to preceding conductivity type, conductivity type is the node of T before then searching in the message queue by leading types of tissue, if find, then according to the mode identical with steps A 4 CINR is added in the corresponding CINR formation of this node; If do not find, then create new node, type assignment is T, and according to the mode identical with steps A 4 CINR is added in the corresponding CINR formation of this node;

If T belongs to area type and area type is not 0 for partly using subchannel and channel to use bitmap B, then in the CINR formation of using the bitmap tissue by area type and channel, carry out the seek area type and use the node of bitmap as B as T and channel, if find, then CINR is added in the corresponding CINR formation of this node according to the mode identical with steps A 4; If do not find, then create new node, the area type assignment is T, channel uses the bitmap assignment to be B, and according to the mode identical with steps A 4 CINR is added in the corresponding CINR formation of this node;

Otherwise the seek area type is the node of T in by the CINR formation of area type tissue, if find, then according to the mode identical with steps A 4 CINR is added in the corresponding CINR formation of this node; If do not find, then create new node, type assignment is T, and according to the mode identical with steps A 4 CINR is added in the corresponding CINR formation of this node.

Among the described step B, described base station selected feedback system comprises the steps:

All support channel quality information channel CQICH fast feedback the time when base station and terminal, select the quick feedback system of CQICH;

More stable when the channel quality of terminal, then use REP-REQ message feedback mode, come the channel information of requesting terminal as required;

When the channel quality instability of terminal, then need the channel conditions of real-time monitoring terminal, send the feedback channel information of feedback polling IE message request terminal periodic this moment.

Among the described step B, terminal operation report response management message REP-RSP realizes feedback, comprises the steps:

Step B11, terminal is received report request management message REP-REQ, enters step B12;

Step B12 resolves REP-REQ message, and record parameter wherein enters step B13;

Step B13 compares the REP-REQ parameter of new REP-REQ parameter and preservation, if equate, then forwards step B15 to; If unequal, enter step B14;

Step B14 is new REP-REQ parameter with the REP-REQ parameter update of preserving, and enters step B15;

Step B15 carries out statistical computation to channel information, enters step B16;

Step B16, after calculating finished, according to the REP-REQ parametric configuration REP-RSP message of result of calculation and preservation, to base station report descending channel information, processing finished.

Among the described step B, terminal uses channel quality information channel CQICH to realize feedback, comprises the steps:

Step B11 ', terminal is received channel quality information channel assignment information unit CQICH allocationIE, enters step B12 ';

Step B12 ' resolves and writes down the information of this information unit, enters step B13 ';

Step B13 ' checks existing CQICH information list, if wherein the node number is 0, enters step B14 '; Otherwise forward step B18 ' to;

Step B14 ' judges whether lifetime duration field is 0 among the CQICH allocation IE, if be 0, processing finishes; Otherwise, enter step B15 ';

Step B15 ' in the information adding CQICH information list with this information unit, enters step B16 ';

Step B16 ' creates the feedback timer, enters step B17 ';

Step B17 ' is changed to 1 with feedback marks, and processing finishes;

Step B18 ' detects the identical node of CQICH sign that whether has in the CQICH information list with CQICH allocation IE, if do not forward step B14 ' to; Otherwise, enter step B19 ';

Step B19 ' judges the value of feedback marks, 0 enters step B110 ' if be; Otherwise forward step B112 ' to;

Step B110 ' judges whether the duration field among the CQICH allocation IE is 0, if be not 0, enters step B111 '; Otherwise, end process;

Step B111 ' upgrades the information in the CQICH tabulation, forwards step B16 ' to;

Step B112 ' judges whether the duration field among the CQICH allocation IE is 0, if be 0, enters step B113 '; Otherwise forward step B116 ' to;

Step B113 ', CQICH sign and the identical node of CQICH allocation IE in the deletion CQICH information list enter step B114 ';

Step B114 ', deletion feedback timer enters step B115 ';

Step B115 ' is changed to 0 with feedback marks, and processing finishes;

Step B116 ' upgrades the CQICH information list, enters step B117 ';

Step B117 ' resets the feedback timer, and processing finishes.

Among the described step B, terminal realizes feedback according to feedback solicited message unit feedback polling IE message, comprises the steps:

Step B11 ", terminal receives feedback polling IE message, begins to resolve, and enters step B12 ";

Step B12 ", detect among this information unit IE whether this terminal information of belonging to is arranged, if having, enter step B13 "; Otherwise processing finishes;

Step B13 ", resolve to obtain among this IE entering step B14 " about this terminal information;

Step B14 ", in the feedback polling IE information list of preserving, detect whether the node identical with new IE feedback kind is arranged, enter step B15 ";

Step B15 ", if find the node identical, forward step B19 to " with new IE feedback kind; Otherwise, enter step B16 ";

Step B16 ", judge whether lifetime duration parameter is 0 among the new IE, if then processing finishes; Otherwise, enter step B17 ";

Step B17 ", new IE information node is added in the information list, enter step B 18 ";

Step B18 ", create the feedback timer, end process;

Step B19 ", judge whether the duration parameter is 0 among the new IE, if enter step B110 "; Otherwise, forward step B113 to ";

Step B110 ", check whether existing feedback timer is overtime, if, end process; Otherwise, enter step B111 ";

Step B111 ", deletion feedback timer enters step B112 ";

Step B112 ", the information node that deletion finds from the IE information list, end process;

Step B113 ", upgrade the information node that finds, enter step B114 ";

Step B114 ", check whether existing feedback timer is overtime, if enter step B115 "; Otherwise, forward step B116 to ";

Step B115 ", create the feedback timer, processing finishes;

Step B116 ", reset the feedback timer, processing finishes.

Among the described step B, the statistical computation function realizes if the adjustment of channel parameter is implemented in the (SuSE) Linux OS kernel state, and then terminal is carried out the channel information statistical computation, comprises the steps:

Step B21, an at first newly-built calculating parameter node, and initialization enter step B22;

Step B22, whether in calculating parameter have CINR parameter, if enter B24 if judging; Otherwise forward B25 to;

Step B23 gives the CINR Argument List list item assignment in the calculating parameter node, enters step B24;

Step B24 judges whether the RSSI parameter is arranged in the calculating parameter, if enter step B25; Otherwise forward step B26 to;

Step B25 gives the RSSI Argument List list item assignment in the calculating parameter node, enters step B26;

Step B26 composes the Data Identification in the calculating parameter tabulation to the Data Identification in the calculating parameter node, enters step B27;

Step B27 adds 1 with the Data Identification in the calculating parameter tabulation, enters step B28;

Step B28, calculating parameter node add the calculating parameter tabulation, enter step B29;

Step B29 is provided with and calls sign, and the computing function that marker function calls enters step B210;

Step B210 according to calculating parameter, Data Identification with call sign structure primitive message, passes to user's attitude and calculates, and enters step B211;

Step B211, calculate finish after, analytical Calculation is primitive as a result, comprising Data Identification, call sign and result of calculation, enters step B212;

Step B212 searches in the calculating parameter tabulation according to Data Identification, enters step B213;

Step B213 if find Data Identification to equal to be resolved to the node of Data Identification, then enters step B214; Otherwise, showing that result of calculation is not the result of expectation, processing finishes;

Step B214 preserves result of calculation, and the calculating parameter node that finds from the calculating parameter tabulation, enters step B215;

Step B215 calls corresponding processing function to the base station feedback channel information according to calling sign, and processing finishes.

Among the described step C, the base stations control down transmitting power comprises the steps:

Step C1, the base station has obtained the descending channel information of terminal feedback, enters step C2;

Step C2, the channel information rated output adjusted value by obtaining enters step C3;

Step C3 adds the power adjustment information in the descending power adjustment tabulation, enters step C4;

Step C4 need carry out the zone that the zone strengthens zone boost at each, calculates total zone boost value Z according to frame information, and calculates the zone boost value of each burst according to the shared subchannel ratio of each burst, enters step C5;

Step C5 searches the corresponding power adjustment of each burst from the tabulation of descending power adjustment information, and with this enhancing value PBB as each burst, and add up total PBB value P, enter step C6;

Step C6 judges whether P+Z＜=3 set up, and forwards step C8 to if set up; Otherwise, enter step C7;

Step C7, the PBB in each zone is scaled and recomputate P, make P+Z＜=3 to satisfy, enter step C8;

Step C8 judges whether the zone boost of each burst and PBB sum are less than or equal to 9, if forward step C10 to; Otherwise, enter step C9;

Step C9, the PBB of the burst that do not satisfy condition is set to 9-zone boost, enters step C10;

Step C10 is converted into encoded radio with PBB value and the zone boost value that finally obtains, and finishes to return.

Among the described step D, the uplink transmission power of base stations control terminal comprises the steps:

Step D1, base station physical layer measure uplink channel information CINR, the RSSI of each terminal, enter step D2;

Step D2, the channel information of a terminal of selection enters step D3;

Step D3 determines power adjustment according to signal quality, enters step D4;

Step D4 judges whether this terminal needs to adjust power, if enter step D5; Otherwise, turn to step D6;

Step D5 adds the power adjustment information in the ascending power adjustment tabulation, enters step D6;

Step D6 judges whether will detect the channel information of all terminals, if forward step D8 to; Otherwise, enter step D7;

Step D7 gets the channel information of next terminal, forwards step D3 to;

Step D8, statistics needs the number N of the terminal of adjustment power, enters step D9;

Step D9 if N is 0, enters step D10; Otherwise, forward step D11 to;

Step D10 does not have terminal need adjust power, and processing finishes;

Step D11 if N is 1, enters step D12; Otherwise, forward step D13 to;

Step D12 uses PMC-RSP message to control single terminal and adjusts transmitting power, and processing finishes;

Step D13 uses FPC message to control a plurality of terminals and adjusts transmitting power, and processing finishes.

The invention has the beneficial effects as follows: wireless network media access control system of the present invention and channel parameter regulation method thereof, provide the workflow of feedback of channel information and the specific implementation of power control, made the wireless network media access control to realize well.

Description of drawings

Fig. 1 is a wireless network media access control system structural representation of the present invention;

Fig. 2 is the channel information list structure schematic diagram that terminal is safeguarded;

Fig. 3 is a wireless network media access control system channel parameter regulation method flow chart of the present invention;

Fig. 4 is the flow chart that terminal processes REP-REQ message realizes feedback information;

Fig. 5 is the flow chart that terminal processes CQICH allocation IE realizes feedback information;

Fig. 6 is the flow chart that terminal processes feedback polling IE realizes feedback information;

Fig. 7 is the workflow diagram of terminal statistical computation channel information;

Fig. 8 is the flow chart that down transmitting power is adjusted in the base station;

Fig. 9 is the schematic diagram that the base stations control terminal is adjusted uplink transmission power.

Embodiment

In order to make purpose of the present invention, technical scheme and advantage clearer,, a kind of wireless network media access control system of the present invention and channel parameter regulation method thereof are further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.

Describe wireless network access control system of the present invention below in detail.

As shown in Figure 1, wireless network access control system of the present invention comprises base station 2 and terminal 1, and described terminal comprises measurement module 11 and feedback module 12, and described base station 2 comprises request module 23, the first adjusting modules 21 and second adjusting module 22.Wherein:

The measurement module 11 of described terminal is used for descending channel information is measured and stored the channel information table into according to area type;

The feedback module 12 of described terminal is used for the feedback request according to base station 2, calculating channel Information Statistics value, and structure channel information reporting message, feedback of down channel information is given relevant base station 2;

The request module 23 of described base station is used for selecting a kind of feedback system when base station 2 requires terminal 1 to feed back current channel information, and structure channel information request message sends to terminal 1;

First adjusting module 21 of described base station is used for the descending channel information according to frame information and terminal feedback, and the control physical layer is adjusted down transmitting power;

Second adjusting module 22 of described base station, be used for according to uplink channel information, determine the performance number that each terminal need be adjusted, and the sign of power adjustment and corresponding terminal is kept in the ascending power adjustment tabulation, when the power adjustment of all terminals has been determined in the base station, statistics need be adjusted the terminal number of power, according to the difference of number in different ways, adjusts the uplink transmission power of corresponding terminal.

In a kind of wireless network media access control system of the present invention, the measurement module 11 of terminal 1 is safeguarded a channel information table, when terminal 1 when physical layer obtains descending channel information, with channel information according to the preservation of classifying of area type or preceding conductivity type, terminal 1 is preserved the channel information of certain frame number, when the channel information of preserving reaches maximum frame number, old channel information will be covered by new channel information;

When base station 2 required terminal 1 to feed back current channel information, request module 23 was selected a kind of feedback system, and structure channel information request message sends to terminal 1; The feedback module 12 of terminal 1 is handled the solicited message that the base station sends over, according to the channel information request message that send base station 2, and calculating channel Information Statistics value, structure channel information reporting message sends to base station 2;

First adjusting module 21 of base station 2 is determined the adjusted value of next frame base station to each terminal transmit power according to the descending channel information of frame information and the report of each terminal, and the control physical layer is adjusted down transmitting power;

Second adjusting module 22 of base station 2 obtains uplink channel information from physical layer, determine the performance number that each terminal need be adjusted according to this, and the sign of power adjustment and corresponding terminal is kept in the ascending power adjustment tabulation, when the power adjustment of all terminals has been determined in the base station, statistics need be adjusted the terminal number of power, comes control terminal to adjust uplink transmission power in different ways according to the difference of number.

Preferably, described terminal also comprises feedback timer 13, is used for the feedback of channel information of property performance period.When the feedback module 12 of terminal receives CQICH allocation IE, the parameter of this information unit (IE) is resolved and write down to this information unit (IE), create the feedback timer, reset feedback timer or deletion feedback timer according to the parameter of this information unit (IE), the feedback marks of terminal then.When feedback timer 13 was overtime, 12 pairs of channel informations of feedback module carried out statistical computation, and the structure feedback message sends to base station 2.When the feedback module 12 of terminal receives feedback polling IE, the parameter of this information unit (IE) is resolved and write down to this information unit (IE), create the feedback timer, reset feedback timer or deletion feedback timer according to the state of the parameter of this information unit (IE), existing feedback timer then.

Describe wireless network access control system channel parameter regulation method of the present invention below in detail, as shown in Figure 2, it comprises the steps:

Step S100, terminal is measured descending channel information and is stored in the channel information table according to area type;

For the feedback of channel information of support terminal, the present invention requires terminal maintenance channel information table to be used for stores information of channels.The channel information list structure of terminal definitions as shown in Figure 3 among the present invention.The first order of this table comprises received signal intensity (Received Signal Strength Indicator, RSSI) formation, default Carrier interference ratio (Carrier to Interference and Noise Ratio, CINR) formation, according to the CINR formation of area type tissue, according to area type and channel use the CINR formation of bitmap tissue, according to the CINR formation of leading types of tissue.A series of nodes are safeguarded in the RSSI formation, and each node comprises the RSSI value of frame number and this frame, and this RSSI formation comprises the territory of expression RSSI average and standard deviation simultaneously, is used to store statistics.A series of nodes are safeguarded in default CINR formation, and each node comprises the CINR value of frame number and this frame, and this CINR formation comprises the territory of expression CINR average and standard deviation simultaneously, is used to store statistics.CINR formation according to the area type tissue comprises a series of nodes, each node inclusion region type field and a CINR formation.Use the CINR formation of bitmap tissue to comprise a series of nodes according to area type and channel, each node inclusion region type field, channel use bitmap and a CINR formation.CINR formation according to leading types of tissue comprises a series of nodes, and each node comprises leading type field and a CINR formation.

Because the channel information of present frame can not be complete the reflection channel conditions, terminal needs the maintenance history channel information, but again because too early channel information has lost meaning for the current channel status of reflection and terminal storage space is limited.

Preferably, the embodiment of the invention has adopted the information storage means of preserving the channel information of N frame.

Wherein the flow process of terminal maintenance channel information table is as follows:

Step S110: obtain the channel information parameter from physical layer, comprise CINR, RSSI, frame number, type (area type or preceding conductivity type), and terminal preserves the information of N frame at most, enter S120;

Step S120: frame number is asked mould to N, suppose to obtain mould value n, enter S130;

Step S130: at first in the RSSI formation inquiry whether frame number is arranged is the node of n, if find, with the content of new this node of RSSI information updating; If do not find, then create a new node, the frame number assignment is n, the RSSI value is composed and is new RSSI value, and this node is added in the RSSI formation, enters S140;

Step S140: whether frame number is arranged is the node of n in inquiry in the CINR formation, if find, with the content of new this node of CINR information updating; If do not find, then create a new node, the frame number assignment is n, the CINR value is new CINR value, and this node is added in the default CINR formation, enters S150;

Step S150: the channel information type T according to obtaining from physical layer, carry out following operation:

If T belongs to preceding conductivity type, conductivity type is the node of T before then searching in the message queue by leading types of tissue, if find, then according to the similar mode of step S140 CINR being added in the corresponding CINR formation of this node; If do not find, then create new node, type assignment is T, and according to the similar mode of step S140 CINR being added in the corresponding CINR formation of this node;

If T belongs to area type and area type is not 0 for partly using subchannel PUSC and channel to use bitmap B, then in the CINR formation of using the bitmap tissue by area type and channel, carry out the seek area type and use the node of bitmap as B as T and channel, if find, then according to CINR being added in the corresponding CINR formation of this node with the similar mode of step S140; If do not find, then create new node, the area type assignment is T, channel uses the bitmap assignment to be B, and according to the similar mode of step S140 CINR being added in the corresponding CINR formation of this node;

Otherwise the seek area type is the node of T in by the CINR formation of area type tissue, if find, then according to the similar mode of step S140 CINR being added in the corresponding CINR formation of this node; If do not find, then create new node, type assignment is T, and according to the similar mode of step S140 CINR being added in the corresponding CINR formation of this node.

Be the maintaining method of example explanation channel information table below with the RSSI formation:

At first obtain current frame number F and channel information RSSI;

F asks mould to N with frame number, and obtaining the mould value is n;

Search in the RSSI formation whether frame number is arranged is the node of n,, then upgrade the RSSI value of this node with new RSSI value if find; If do not find, then newly create a node, the frame number assignment is n, and RSSI value assignment is new RSSI value, and the node that will newly create then adds in the RSSI formation;

After a statistical computation is carried out in the RSSI formation, the node in the RSSI formation is emptied, and result of calculation is stored in the RSSI queue heads.

The reason that node in the RSSI formation is emptied is: if statistical computation is more frequent, illustrates that the real-time to channel information requires than higher, thereby only need the channel information of nearest several frames; And if do not carry out statistical computation for a long time, then by above-mentioned method, terminal only can be safeguarded nearest N frame channel information, and is unlikely to take too many memory space.

The maintaining method of CINR formation and the maintaining method of RSSI are similar.

Step S200 when the base station requires terminal to feed back current channel information, selects a kind of feedback system, and structure channel information request message sends to terminal; Terminal is according to the feedback request of base station, and calculating channel Information Statistics value is constructed channel information reporting message, and feedback of down channel information is given relevant base station;

In order to realize feedback of channel information, a kind of feedback system need be selected in the base station, structure feedback request message, requesting terminal feedback channel information.

The method of base station selected feedback system is as follows:

(1) all supports channel quality information channel (Channel Quality IndicatorChannel when base station and terminal, when CQICH) feeding back fast, the quick feedback system of first-selected CQICH, because this mode is fastest, most effective, thereby when the base station needed the terminal feedback channel information, structure channel quality information channel assignment information unit, base station (CQICH allocation IE) sent to terminal.Otherwise, select according to (2).

(2) when the channel quality of terminal more stable, then can the operation report request message (ReportRequest, REP-REQ) feedback system are come the channel information of requesting terminal as required, can reduce the feedack amount like this;

(3) when the channel quality instability of terminal, then need real-time monitoring terminal channel conditions, can send feedback solicited message unit (feedback polling IE) the periodic feedback channel information in requesting terminal this moment.

In order to realize feedback information, should correctly resolve the feedback of channel information request message that the base station sends over, realize feedback of channel information effectively according to the feedback request message.

Further, terminal realizes that the method for feedback of channel information is as follows:

When REP-REQ message that terminal receives, resolving this message also preserves parameter in this message, parameter request according to REP-REQ message carries out statistical computation to channel information then, after calculating end, structure report response message (Report Request/Response, REP-RSP), send to the base station.

Further, the idiographic flow that feeds back of terminal processes REP-REQ message of the present invention as shown in Figure 2.

Fig. 4 is the flow chart that terminal processes REP-REQ message realizes feedback information, and terminal processes REP-REQ message realizes that the concrete steps of feedback are as follows:

S41: terminal is received REP-REQ message, enters S42;

S42: resolve REP-REQ message, record parameter wherein enters S43;

S43: the REP-REQ parameter of new REP-REQ parameter and preservation is compared,, forward S45 to if equate; If unequal, enter S44;

S44: with the REP-REQ parameter update of preserving is new REP-REQ parameter, enters S45;

S45: channel information is carried out statistical computation, enter S46;

S46: after calculating finished, according to the REP-REQ parametric configuration REP-RSP message of result of calculation and preservation, to base station report descending channel information, processing finished.

When terminal receives CQICH allocation IE, the parameter of this information unit (IE) is resolved and write down to this information unit (IE), create the feedback timer, reset feedback timer or deletion feedback timer according to the parameter of this information unit (IE), the feedback marks of terminal then.

Further, the flow process fed back of the CQICH allocation IE that sends of terminal processes of the present invention base station as shown in Figure 3.Wherein feed back the feedback of channel information that the function of timer can property performance period.In the time of the feedback timer expiry, channel information is carried out statistical computation, the structure feedback message sends to the base station.

Fig. 5 is the flow chart that terminal processes CQICH allocation IE realizes feedback information, and terminal uses CQICH to realize that the concrete steps of feedback are as follows:

S51: terminal is received CQICH allocation IE, enters S52;

S52: resolve and write down the information of this IE, enter S53;

S53: check existing CQICH information list,, enter S54 if wherein the node number is 0; Otherwise forward S58 to;

S54: whether the duration among the CQICH allocation IE of judgement (lifetime, the time of indication feedback) field is 0, if be 0, processing finishes; Otherwise, enter S55;

S55: the information of this IE is added in the CQICH information list, enter S56;

S56: create the feedback timer, enter S57;

S57: feedback marks is changed to 1, and processing finishes;

S58: detect the identical node of CQICH sign that whether has in the CQICH information list with CQICH allocation IE, if do not forward S54 to; Otherwise, enter S59;

S59: judge the value of feedback marks, 0 enter S510 if be; Otherwise forward S512 to;

S510: judge whether the duration field among the CQICH allocation IE is 0, if be not 0, enters S511; Otherwise, end process;

S511: upgrade the information in the CQICH tabulation, forward S56 to;

S512: judge whether the duration field among the CQICH allocation IE is 0, if be 0, enters S513; Otherwise forward S516 to;

S513: CQICH sign and the identical node of CQICH allocation IE in the deletion CQICH information list enter S514;

S514: deletion feedback timer enters S515;

S515: feedback marks is changed to 0, and processing finishes

S516: upgrade the information in the CQICH tabulation, enter S517;

S517: reset the feedback timer, processing finishes.

When terminal receives feedback polling IE, the parameter of this information unit (IE) is resolved and write down to this information unit (IE), create the feedback timer, reset feedback timer or deletion feedback timer according to the state of the parameter of this information unit (IE), existing feedback timer then.

Further, the flow process fed back of terminal processes feedback polling IE of the present invention as shown in Figure 4.Wherein feed back the feedback of channel information that the function of timer can property performance period.In the time of the feedback timer expiry, channel information is carried out statistical computation, the structure feedback message sends to the base station.

Fig. 6 is the flow chart that terminal processes feedback polling IE realizes feedback information, and terminal realizes that according to feedback polling IE the concrete steps of feedback are as follows:

S61: terminal receives feedback polling IE, begins to resolve, and enters S62;

S62: whether in this IE have belong to this terminal information, if having, enter S63 if detecting; Otherwise processing finishes;

S63: resolve and to obtain among this IE entering S64 about this terminal information;

S64: in the feedback polling IE information list of preserving, detect whether the node identical with new IE feedback kind is arranged, enter S65;

S65:, forward S69 to if find the node identical with new IE feedback kind; Otherwise, enter S66;

S66: judge whether the duration parameter is 0 among the new IE, if then processing finishes; Otherwise, enter S67;

S67: new IE information node is added in the information list, enter S68;

S68: create the feedback timer, end process;

S69: judge whether the duration parameter is 0 among the new IE, if enter S610; Otherwise, forward S613 to;

S610: check whether existing feedback timer is overtime, if, end process; Otherwise, enter S611;

S611: deletion feedback timer enters S612;

S612: the information node that deletion finds from the IE information list, end process;

S613: upgrade the information node that finds, enter S614;

S614: check whether existing feedback timer is overtime, if enter S615; Otherwise, forward S616 to;

S615: create the feedback timer, processing finishes;

S616: reset the feedback timer, processing finishes.

If the adjustment function of channel parameter is implemented in linux operating system nucleus attitude, calculate the shortcoming of supporting difference for the floating number that overcomes kernel state, provided a kind of implementation method in the embodiment of the invention at user's attitude statistical computation channel information:

It is when handling a statistical computation request, at first construct a calculating parameter node, give wherein CINR parameter item, RSSI parameter item assignment, and be the Data Identification of calculating parameter tabulation with its Data Identification assignment, the Data Identification of calculating parameter tabulation adds 1, and it adds in the calculating parameter tabulation with this node, is provided with and calls the sign that is designated the call function of initiating computation requests, construct calculating parameter primitive then, pass to user's attitude and calculate.User's attitude passes to kernel state after calculating and finishing again, and analytical Calculation result searches the calculating parameter node according to Data Identification in the calculating parameter tabulation, to find the preservation position of result of calculation, if can not find, the result of calculation that is not expectation is described, abandon this result of calculation.Find after the calculating parameter node, preserve result of calculation, call corresponding processing function according to calling sign then, the structure feedback message.

Further, the idiographic flow of channel information statistical computation of the present invention as shown in Figure 5.

Fig. 7 is the workflow diagram of terminal statistical computation channel information, and concrete steps are as follows:

S71: an at first newly-built calculating parameter node, and initialization enter S72;

S72: whether in calculating parameter have CINR parameter, if enter S73 if judging; Otherwise forward S74 to;

S73: give the CINR Argument List list item assignment in the calculating parameter node, enter S74;

S74: whether in calculating parameter have RSSI parameter, if enter S75 if judging; Otherwise forward S76 to;

S75: give the RSSI Argument List list item assignment in the calculating parameter node, enter S76;

S76: the Data Identification in the calculating parameter tabulation is composed to the Data Identification in the calculating parameter node, entered S77;

S77: the Data Identification in the calculating parameter tabulation is added 1, enter S78;

S78: the calculating parameter node adds the calculating parameter tabulation, enters S79;

S79: be provided with and call sign, sign calls the function of computing function, enters S710;

S710: according to calculating parameter, Data Identification with call sign structure primitive message, pass to user's attitude and calculate, enter S711;

S711: calculate finish after, analytical Calculation is primitive as a result, comprising Data Identification, call sign and result of calculation, enters S712;

S712: search in the calculating parameter tabulation according to Data Identification, enter S713;

S713:, then enter S714 if find Data Identification to equal to be resolved to the node of Data Identification; Otherwise, showing that result of calculation is not the result of expectation, processing finishes;

S714: preserve result of calculation, and the calculating parameter node that from the calculating parameter tabulation, finds, enter S715;

S715: call corresponding processing function to the base station feedback channel information according to calling sign, processing finishes.

In order to support the function of statistical computation, the calculating parameter primitive form of setting of the present invention and describe as shown in table 1:

Table 1 calculating parameter primitive structural table

Field	Describe
		Type	Type of message: kernel state is to the calculating parameter of user's attitude
Length	Be right after the message load length after this field
		Call flag	Call sign, be used for the function that mark initiates the statistical computation request, with the function that guarantees after result of calculation is returned under the asynchronous situation, can to determine to call.
Data flag	Data Identification, mark calculating parameter node is so that preserve result of calculation when calculating is returned
		Parameter	Calculating parameter

The result of calculation primitive form of setting of the present invention and describe as shown in table 2:

Table 2 result of calculation primitive structural table

Field	Describe
		Type	Type of message: user's attitude is to the result of calculation of kernel state
Length	Be right after the message load length after this field
		Call flag	Call sign, be used for the function that mark initiates statistical computation, with the function that guarantees after result of calculation is returned under the asynchronous situation, can to determine to call.
Data flag	Data Identification, mark calculating parameter node is so that preserve result of calculation when calculating is returned
		Result	Result of calculation

Step S300, the base station is according to the descending channel information of frame information and terminal feedback, and the control physical layer is adjusted down transmitting power;

The base station judges whether the transmitting power of needs adjustment to terminal according to channel information when receiving the feedback information of terminal.If desired, then power adjustment is added in the descending power adjustment tabulation.Carry out the zone that the zone strengthens (zone boost) at needs, the operation below carrying out:

Calculate total zone according to frame information and strengthen (zone boost) value Z, and calculate zone enhancing (zone boost) value of each burst according to the shared subchannel ratio of each burst; From the tabulation of descending power adjustment information, search each corresponding power adjustment that happens suddenly, and strengthen (PBB) as each burst, and add up each total burst enhancing (PBB) value P with this; Judge whether P+Z＜=3 set up, if it is be false that the PBB of each burst is scaled and recomputate P, make P+Z＜=3 to satisfy; Whether zone enhancing (zone boost) and each burst enhancing (PBB) sum of judging each burst are less than or equal to 9, and each burst enhancing (PBB) value of the burst that do not satisfy condition is set to 9-zone boost; Each burst that finally obtains strengthens (PBB) value and zone enhancing (zone boost) value is converted into encoded radio, and processing procedure finishes.

Further, the flow process of adjustment down transmitting power in base station of the present invention as shown in Figure 6.

Fig. 8 is the flow chart that down transmitting power is adjusted in the base station, and the concrete steps of base stations control down transmitting power are as follows:

S81: the base station has obtained the descending channel information of terminal feedback, enters S82;

S82: the channel information rated output adjusted value by obtaining enters S83;

S83: the power adjustment information is added in the descending power adjustment tabulation, enter S84;

S84: need carry out the zone of zone boost at each, calculate total zone boost value Z, and calculate the zone boost value of each burst, enter S85 according to the shared subchannel ratio of each burst according to frame information;

S85: from descending power adjustment information tabulation, search the corresponding power adjustment of each burst, and with this as PBB, and add up total PBB value P, enter S86;

S86: judge whether P+Z＜=3 set up, forward S88 to if set up; Otherwise, enter S87;

S87: the PBB in each zone is scaled and recomputate P, make P+Z＜=3 to satisfy, enter S88;

S88: judge whether the zone boost of each burst and PBB sum are less than or equal to 9, if forward S810 to; Otherwise, enter S89;

S89: the PBB of the burst that do not satisfy condition is set to 9-zone boost, enters S810;

S810: PBB value that will finally obtain and zone boost value are converted into encoded radio, and processing procedure finishes.

Step S400, the base station is according to uplink channel information, determine the performance number that each terminal need be adjusted, and the sign of power adjustment and corresponding terminal is kept in the ascending power adjustment tabulation, when the power adjustment of all terminals has been determined in the base station, statistics need be adjusted the terminal number of power, according to the difference of number in different ways, adjusts the transmitting power of corresponding terminal.

In order to realize each terminal adjustment uplink transmission power of base stations control, the base station physical layer measures the uplink signal-channel quality of each terminal, judges whether this terminal needs to adjust power, if then the power adjustment information is added in the ascending power adjustment tabulation.The base station statistics needs the number of the terminal of adjustment power then, if be 0, expression does not have terminal need adjust power, and processing finishes; If be 1, expression has only a terminal need adjust transmitting power, and (processing finishes for Power controlMode Change response, PMC-RSP) the single terminal adjustment of control transmitting power to use power control mode to change response management message; If greater than 1, expression has a plurality of terminals need adjust transmitting power, and (Fast Power Control, FPC) a plurality of terminals of control are adjusted transmitting power, the processing end to use fast power control and management message.

Further, the flow process of base stations control terminal adjustment uplink transmission power of the present invention as shown in Figure 7.

Fig. 9 is the schematic diagram that the base stations control terminal is adjusted uplink transmission power, and the concrete steps of the uplink transmission power of base stations control terminal are as follows:

S91: the base station physical layer measures the uplink signal-channel quality of each terminal, enters S92;

S92: select the channel quality of a terminal, enter S93;

S93: determine power adjustment according to signal quality, enter S94;

S94: judge whether this terminal needs to adjust power, if enter S95; Otherwise, turn to S96;

S95: the power adjustment information is added in the ascending power adjustment tabulation, enter S96;

S96: judge whether will detect the channel information of all terminals, if forward S98 to; Otherwise, enter S97;

S97: get the channel information of next terminal, forward S93 to;

S98: statistics needs the number N of the terminal of adjustment power, enters S99;

S99:, enter S910 if N is 0; Otherwise, forward S911 to;

S910: do not have terminal need adjust power, processing finishes;

S911:, enter S912 if N is 1; Otherwise, forward S913 to;

S912: use PMC-RSP message to control single terminal and adjust transmitting power, processing finishes;

S913: use FPC message to control a plurality of terminals and adjust transmitting power, processing finishes.

Wireless network media access control system of the present invention and channel parameter regulation method thereof have provided the workflow of feedback of channel information and the specific implementation of power control, make the wireless network media access control to realize well.

In conjunction with the drawings to the description of the specific embodiment of the invention, others of the present invention and feature are conspicuous to those skilled in the art.

More than specific embodiments of the invention are described and illustrate it is exemplary that these embodiment should be considered to it, and be not used in and limit the invention, the present invention should make an explanation according to appended claim.

Claims (15)

1, a kind of wireless network access control system comprises base station and terminal, it is characterized in that, described terminal comprises measurement module and feedback module, and described base station comprises request module, first adjusting module and second adjusting module, wherein:

The measurement module of described terminal is used for descending channel information is measured and stored the channel information table into according to area type;

The feedback module of described terminal is used for the feedback request according to the base station, calculating channel Information Statistics value, and structure channel information reporting message, feedback of down channel information is given relevant base station;

The request module of described base station is used for selecting a kind of feedback system when the base station requires terminal to feed back current channel information, and structure channel information request message sends to terminal;

First adjusting module of described base station is used for the descending channel information according to frame information and terminal feedback, and the control physical layer is adjusted down transmitting power;

Second adjusting module of described base station, be used for according to uplink channel information, determine the performance number that each terminal need be adjusted, and the sign of power adjustment and corresponding terminal is kept in the ascending power adjustment tabulation, when the power adjustment of all terminals has been determined in the base station, statistics need be adjusted the terminal number of power, according to the difference of number in different ways, adjusts the uplink transmission power of corresponding terminal.

2, wireless network access control system according to claim 1, it is characterized in that, the first order of described channel information table comprise RSSI formation, default CINR formation, according to the CINR formation of area type tissue, according to area type and channel use the CINR formation of bitmap tissue, according to the CINR formation of leading types of tissue.

3, wireless network access control system according to claim 2, it is characterized in that a series of nodes are safeguarded in described RSSI formation, each node comprises the RSSI value of frame number and this frame, described RSSI formation comprises the territory of expression RSSI average and standard deviation simultaneously, is used to store statistics;

A series of nodes are safeguarded in described default CINR formation, and each node comprises the CINR value of frame number and this frame, and described default CINR formation comprises the territory of expression CINR average and standard deviation simultaneously, is used to store statistics;

Described CINR formation according to the area type tissue comprises a series of nodes, each node inclusion region type field and CINR formation, and described CINR formation according to the area type tissue is identical with described default CINR formation;

Described CINR formation according to area type and channel use bitmap tissue comprises a series of nodes, each node inclusion region type field, channel use bitmap and CINR formation, and described CINR formation according to area type and channel use bitmap tissue is identical with described default CINR formation;

Described CINR formation according to leading types of tissue comprises a series of nodes, and each node comprises leading type field and CINR formation, and described CINR formation according to leading types of tissue is identical with described default CINR formation.

4, wireless network access control system according to claim 2 is characterized in that, described feedback system is the quick feedback system of CQICH, REP-REQ feedback system and feedback polling IE message request feedback system.

5, wireless network access control system according to claim 4 is characterized in that, described terminal also comprises the feedback timer, is used for the feedback of channel information of property performance period;

When the feedback module of terminal receives CQICH allocation IE, the parameter of this information unit is resolved and write down to this information unit, create the feedback timer, reset feedback timer or deletion feedback timer according to the parameter of this information unit, the feedback marks of terminal then; In the time of the feedback timer expiry, feedback module carries out statistical computation to channel information, and the structure feedback message sends to the base station;

When terminal was received feedback polling IE, the state of the parameter of this information unit, existing feedback timer that this information unit is resolved and write down was created the feedback timer, is reseted feedback timer or deletion feedback timer; In the time of the feedback timer expiry, feedback module carries out statistical computation to channel information, and the structure feedback message sends to the base station.

6, wireless network access control system according to claim 1 is characterized in that, described difference according to number is adjusted the transmitting power of corresponding terminal in different ways, for:

If be 0, expression does not have terminal need adjust power, and processing finishes;

If be 1, expression has only a terminal need adjust transmitting power, uses PMC-RSP message to control single terminal and adjusts transmitting power, and processing finishes;

If greater than 1, expression has a plurality of terminals need adjust transmitting power, uses FPC message to control a plurality of terminals and adjusts transmitting power, and processing finishes.

7, a kind of wireless network access control system channel parameter regulation method is characterized in that, comprises the following steps:

Steps A, terminal are measured descending channel information and are stored in the channel information table according to area type;

Step B when the base station requires terminal to feed back current channel information, selects a kind of feedback system, and structure channel information request message sends to terminal; Terminal is according to the feedback request of base station, and calculating channel Information Statistics value is constructed channel information reporting message, and feedback of down channel information is given relevant base station;

Step C, the base station is according to the descending channel information of frame information and terminal feedback, and the control physical layer is adjusted down transmitting power;

Step D, the base station is according to uplink channel information, determine the performance number that each terminal need be adjusted, and the sign of power adjustment and corresponding terminal is kept in the ascending power adjustment tabulation, when the power adjustment of all terminals has been determined in the base station, statistics need be adjusted the terminal number of power, according to the difference of number in different ways, adjusts the transmitting power of corresponding terminal.

8, wireless network access control system channel parameter regulation method according to claim 7 is characterized in that, in the described steps A, described terminal storage descending channel information comprises the following steps: to the channel information table

Steps A 1 obtains the channel information parameter from physical layer, comprises CINR, RSSI, frame number, type, and terminal preserves the information of N frame at most, enters steps A 2;

Steps A 2 is asked mould with frame number to N, supposes to obtain mould value n, enters steps A 3;

Steps A 3, at first in the RSSI formation inquiry whether frame number is arranged is the node of n, if find, with the content of new this node of RSSI information updating;

If do not find, then create a new node, the frame number assignment is n, the RSSI value is composed and is new RSSI value, and this node is added in the RSSI formation;

Enter steps A 4;

Steps A 4, whether frame number is arranged is the node of n in inquiry in the CINR formation, if find, with the content of new this node of CINR information updating;

If do not find, then create a new node, the frame number assignment is n, the CINR value is new CINR value, and this node is added in the default CINR formation;

Enter steps A 5;

Steps A 5, the channel information type T according to obtaining from physical layer, carry out following operation:

If T belongs to preceding conductivity type, conductivity type is the node of T before then searching in the message queue by leading types of tissue, if find, then according to the mode identical with steps A 4 CINR is added in the corresponding CINR formation of this node; If do not find, then create new node, type assignment is T, and according to the mode identical with steps A 4 CINR is added in the corresponding CINR formation of this node;

If T belongs to area type and area type is not 0 for partly using subchannel and channel to use bitmap B, then in the CINR formation of using the bitmap tissue by area type and channel, carry out the seek area type and use the node of bitmap as B as T and channel, if find, then CINR is added in the corresponding CINR formation of this node according to the mode identical with steps A 4; If do not find, then create new node, the area type assignment is T, channel uses the bitmap assignment to be B, and according to the mode identical with steps A 4 CINR is added in the corresponding CINR formation of this node;

Otherwise the seek area type is the node of T in by the CINR formation of area type tissue, if find, then according to the mode identical with steps A 4 CINR is added in the corresponding CINR formation of this node; If do not find, then create new node, type assignment is T, and according to the mode identical with steps A 4 CINR is added in the corresponding CINR formation of this node.

9, wireless network access control system channel parameter regulation method according to claim 7 is characterized in that, among the described step B, described base station selected feedback system comprises the steps:

All support channel quality information channel CQICH fast feedback the time when base station and terminal, select the quick feedback system of CQICH;

More stable when the channel quality of terminal, then use REP-REQ message feedback mode, come the channel information of requesting terminal as required;

When the channel quality instability of terminal, then need the channel conditions of real-time monitoring terminal, send the feedback channel information of feedback polling IE message request terminal periodic this moment.

10, wireless network access control system channel parameter regulation method according to claim 9 is characterized in that, among the described step B, terminal operation report response management message REP-RSP realizes feedback, comprises the steps:

Step B11, terminal is received report request management message REP-REQ, enters step B12;

Step B12 resolves REP-REQ message, and record parameter wherein enters step B13;

Step B13 compares the REP-REQ parameter of new REP-REQ parameter and preservation, if equate, then forwards step B15 to; If unequal, enter step B14;

Step B14 is new REP-REQ parameter with the REP-REQ parameter update of preserving, and enters step B15;

Step B15 carries out statistical computation to channel information, enters step B16;

Step B16, after calculating finished, according to the REP-REQ parametric configuration REP-RSP message of result of calculation and preservation, to base station report descending channel information, processing finished.

11, wireless network access control system channel parameter regulation method according to claim 9 is characterized in that, among the described step B, terminal uses channel quality information channel CQICH to realize feedback, comprises the steps:

Step B11 ', terminal is received channel quality information channel assignment information unit CQICH allocationIE, enters step B12 ';

Step B12 ' resolves and writes down the information of this information unit, enters step B13 ';

Step B13 ' checks existing CQICH information list, if wherein the node number is 0, enters step B14 '; Otherwise forward step B18 ' to;

Step B14 ' judges whether lifetime duration field is 0 among the CQICH allocation IE, if be 0, processing finishes; Otherwise, enter step B15 ';

Step B15 ' in the information adding CQICH information list with this information unit, enters step B16 ';

Step B16 ' creates the feedback timer, enters step B17 ';

Step B17 ' is changed to 1 with feedback marks, and processing finishes;

Step B18 ' detects the identical node of CQICH sign that whether has in the CQICH information list with CQICH allocation IE, if do not forward step B14 ' to; Otherwise, enter step B19 ';

Step B19 ' judges the value of feedback marks, 0 enters step B110 ' if be; Otherwise forward step B112 ' to;

Step B110 ' judges whether the duration field among the CQICH allocation IE is 0, if be not 0, enters step B111 '; Otherwise, end process;

Step B111 ' upgrades the information in the CQICH tabulation, forwards step B16 ' to;

Step B112 ' judges whether the duration field among the CQICH allocation IE is 0, if be 0, enters step B113 '; Otherwise forward step B116 ' to;

Step B113 ', CQICH sign and the identical node of CQICH allocation IE in the deletion CQICH information list enter step B114 ';

Step B114 ', deletion feedback timer enters step B115 ';

Step B115 ' is changed to 0 with feedback marks, end process;

Step B116 ' upgrades the CQICH information list, enters step B117 ';

Step B117 ' resets the feedback timer, and processing finishes.

12, wireless network access control system channel parameter regulation method according to claim 9 is characterized in that, among the described step B, terminal realizes feedback according to feedback solicited message unit feedback polling IE message, comprises the steps:

Step B11 ", terminal receives feedback polling IE message, begins to resolve, and enters step B12 ";

Step B12 ", detect among this information unit IE whether this terminal information of belonging to is arranged, if having, enter step B13 "; Otherwise processing finishes;

Step B13 ", resolve to obtain among this IE entering step B14 " about this terminal information;

Step B14 ", in the feedback polling IE information list of preserving, detect whether the node identical with new IE feedback kind is arranged, enter step B15 ";

Step B15 ", if find the node identical, forward step B19 to " with new IE feedback kind; Otherwise, enter step B16 ";

Step B16 ", judge whether lifetime duration parameter is 0 among the new IE, if then processing finishes; Otherwise, enter step B17 ";

Step B17 ", new IE information node is added in the information list, enter step B18 ";

Step B18 ", create the feedback timer, end process;

Step B19 ", judge whether the duration parameter is 0 among the new IE, if enter step B110 "; Otherwise, forward step B113 to ";

Step B110 ", check whether existing feedback timer is overtime, if, end process; Otherwise, enter step B111 ";

Step B111 ", deletion feedback timer enters step B112 ";

Step B112 ", the information node that deletion finds from the IE information list, end process;

Step B113 ", upgrade the information node that finds, enter step B114 ";

Step B114 ", check whether existing feedback timer is overtime, if enter step B115 "; Otherwise, forward step B116 to ";

Step B115 ", create the feedback timer, processing finishes;

Step B116 ", reset the feedback timer, processing finishes.

13, wireless network access control system channel parameter regulation method according to claim 9, it is characterized in that, among the described step B, the statistical computation function realizes if the adjustment of channel parameter is implemented in the (SuSE) Linux OS kernel state, then terminal is carried out the channel information statistical computation, comprises the steps:

Step B21, an at first newly-built calculating parameter node, and initialization enter step B22;

Step B22, whether in calculating parameter have CINR parameter, if enter B24 if judging; Otherwise forward B25 to;

Step B23 gives the CINR Argument List list item assignment in the calculating parameter node, enters step B24;

Step B24 judges whether the RSSI parameter is arranged in the calculating parameter, if enter step B25; Otherwise forward step B26 to;

Step B25 gives the RSSI Argument List list item assignment in the calculating parameter node, enters step B26;

Step B26 composes the Data Identification in the calculating parameter tabulation to the Data Identification in the calculating parameter node, enters step B27;

Step B27 adds 1 with the Data Identification in the calculating parameter tabulation, enters step B28;

Step B28, calculating parameter node add the calculating parameter tabulation, enter step B29;

Step B29 is provided with and calls sign, and the computing function that marker function calls enters step B210;

Step B210 according to calculating parameter, Data Identification with call sign structure primitive message, passes to user's attitude and calculates, and enters step B211;

Step B211, calculate finish after, analytical Calculation is primitive as a result, comprising Data Identification, call sign and result of calculation, enters step B212;

Step B212 searches in the calculating parameter tabulation according to Data Identification, enters step B213;

Step B213 if find Data Identification to equal to be resolved to the node of Data Identification, then enters step B214; Otherwise, showing that result of calculation is not the result of expectation, processing finishes;

Step B214 preserves result of calculation, and the calculating parameter node that finds from the calculating parameter tabulation, enters step B215;

Step B215 calls corresponding processing function to the base station feedback channel information according to calling sign, and processing finishes.

14, wireless network access control system channel parameter regulation method according to claim 7 is characterized in that, among the described step C, the base stations control down transmitting power comprises the steps:

Step C1, the base station has obtained the descending channel information of terminal feedback, enters step C2;

Step C2, the channel information rated output adjusted value by obtaining enters step C3;

Step C3 adds the power adjustment information in the descending power adjustment tabulation, enters step C4;

Step C4 need carry out the zone that the zone strengthens zone boost at each, calculates total zone boost value Z according to frame information, and calculates the zone boost value of each burst according to the shared subchannel ratio of each burst, enters step C5;

Step C5 searches the corresponding power adjustment of each burst from the tabulation of descending power adjustment information, and with this enhancing value PBB as each burst, and add up total PBB value P, enter step C6;

Step C6 judges whether P+Z＜=3 set up, and forwards step C8 to if set up; Otherwise, enter step C7;

Step C7, the PBB in each zone is scaled and recomputate P, make P+Z＜=3 to satisfy, enter step C8;

Step C8 judges whether the zone boost of each burst and PBB sum are less than or equal to 9, if forward step C10 to; Otherwise, enter step C9;

Step C9, the PBB of the burst that do not satisfy condition is set to 9-zone boost, enters step C10;

Step C10 is converted into encoded radio with PBB value and the zone boost value that finally obtains, and finishes to return.

15, wireless network access control system channel parameter regulation method according to claim 7 is characterized in that, among the described step D, the uplink transmission power of base stations control terminal comprises the steps:

Step D1, base station physical layer measure uplink channel information CINR, the RSSI of each terminal, enter step D2;

Step D2, the channel information of a terminal of selection enters step D3;

Step D3 determines power adjustment according to signal quality, enters step D4;

Step D4 judges whether this terminal needs to adjust power, if enter step D5; Otherwise, turn to step D6;

Step D5 adds the power adjustment information in the ascending power adjustment tabulation, enters step D6;

Step D6 judges whether will detect the channel information of all terminals, if forward step D8 to; Otherwise, enter step D7;

Step D7 gets the channel information of next terminal, forwards step D3 to;

Step D8, statistics needs the number N of the terminal of adjustment power, enters step D9;

Step D9 if N is 0, enters step D10; Otherwise, forward step D11 to;

Step D10 does not have terminal need adjust power, and processing finishes;

Step D11 if N is 1, enters step D12; Otherwise, forward step D13 to;

Step D12 uses PMC-RSP message to control single terminal and adjusts transmitting power, and processing finishes;

Step D13 uses FPC message to control a plurality of terminals and adjusts transmitting power, and processing finishes.

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