CN101146357B - A quick access method in radio communication system - Google Patents
A quick access method in radio communication system Download PDFInfo
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- CN101146357B CN101146357B CN2007101241838A CN200710124183A CN101146357B CN 101146357 B CN101146357 B CN 101146357B CN 2007101241838 A CN2007101241838 A CN 2007101241838A CN 200710124183 A CN200710124183 A CN 200710124183A CN 101146357 B CN101146357 B CN 101146357B
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Abstract
The invention discloses a method for quick access of a wireless communication system, and is applied to the wireless communication field. The method comprises the following steps: a base station collects real-time load intensity of reverse link, calculates the overload indication of the reverse link and the regulatory factor of a reverse overload access channel and transmits the indication and the factor into a common overhead channel; the terminal receives the overload indication of the reverse link and the regulatory factor of the reverse overload access channel; the terminal judges the overload indication of the reverse link, calculates the initial transmit power of the reverse access probe of the transmit access probe and transmits the access probe with the initial transmit power of the reverse access probe in combination with the service quality attribute of the initiating business,. The invention is adopted for judging whether the load of the reverse link is overloaded, and different initial transmit powers can be acquired for transmitting the access probe according to the judgment, and thus the accese delay of the QoS business in the wireless network system is decreased to ensure the normal operation of the QoS business.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to the method that a kind of wireless communication system inserts fast.
Background technology
At present, in the DO Rev.A system, increased QoS (Quality of Service, service quality) and supported, and wireless telecommunication system is more and more important to the support of QoS business; Wherein, support that the professional most important one side of QoS is exactly the delay requirement to QoS, promptly professional connection set-up delay and conversation time delay.
In the prior art, the access way of DO Rev.A system cut-in channel still adopts traditional cut-in method, promptly adopt time slot A LOHA agreement (user has frame can send agreement) mechanism, when terminal has professional arrival or receives the beep-page message of base station, on Reverse Access Channel, send access exploration (Probe), the access exploration Initial Trans is estimated according to the receiving intensity of forward link, calculates the access exploration Initial Trans; But, this method is not carried out corresponding adjusting according to the intensity of reverse link load to the reverse transmitted power of access exploration, if existing, bigger, preceding reverse link imbalance of reverse link load variations or reverse link disturb, calculation deviation will appear in the estimation to the access exploration Initial Trans, force terminal to send the more just possible connecting system of access exploration of more number, thereby cause professional connection set-up delay to increase, can't satisfy the requirement of QoS delay sensitive type service access wireless communication system, i.e. less time delay connecting system as far as possible.
Therefore, prior art awaits improving and development.
Summary of the invention
Problem to be solved by this invention is to provide a kind of method that shortens access delay and can be widely used in the reverse common access channel of wireless telecommunication system.
In order to address the above problem, the invention provides the method that a kind of wireless communication system inserts fast, comprise the steps:
A, base station are gathered the reverse link load intensity in real time, according to described reverse link load intensity size and reverse link traffic overload thresholding compare calculate indication of reverse link traffic overload and reverse overload access channel regulatory factor after, in public overhead channel, send described reverse link traffic overload and indicate and described reverse overload access channel regulatory factor;
The described public overhead channel of the supervision of B, terminal periodic, and receive described reverse link traffic overload indication and described reverse overload access channel regulatory factor;
C, described terminal are judged described reverse link traffic overload indication, and the professional quality of service attribute of combination initiation, calculate reverse access exploration Initial Trans, and send access exploration with this reverse access exploration Initial Trans.
Described method wherein, comprises after the step C:
D, judging whether described terminal receives the access acknowledgement message that access network returns, is that then described terminal stops to send described access exploration; Otherwise described terminal will increase described reverse access exploration Initial Trans, continue send described access exploration, when described terminal receives described access acknowledgement message till.
Described method, wherein, the mode that described reverse link traffic overload indication and described reverse overload access channel regulatory factor send in described public overhead channel adopts the Overhead Message mode to carry out.
Described method, wherein, described reverse overload access channel regulatory factor comprises downward regulatory factor of reverse access exploration Initial Trans and the reverse access exploration Initial Trans regulatory factor that makes progress.
Described method wherein, is added with described reverse link traffic overload indication and described reverse overload access channel regulatory factor in the reserved field of described Overhead Message.
Described method wherein, is added with downward regulatory factor of described reverse access exploration initialization transmitting power and the reverse access exploration initialization transmitting power regulatory factor that makes progress in the reserved field of described Overhead Message.
Described method, wherein, when described terminal judges goes out described reverse link traffic overload indication overload, and when initiating professional quality of service attribute and not having delay requirement; Described step C comprises following processing:
C11, described terminal estimate reverse access exploration open loop according to the forward direction received power and adjust Initial Trans;
C12, described reverse overload access channel regulatory factor are adjusted Initial Trans to described reverse access exploration open loop and are reduced adjustment, obtain reverse access exploration Initial Trans.
Described method, wherein, when described terminal judges goes out described overload of reversed link indication nonoverload, and when initiating professional quality of service attribute and not having delay requirement; Described step C comprises following processing:
Described terminal estimates reverse access exploration open loop according to the forward direction received power and adjusts Initial Trans, and described reverse access exploration Initial Trans equals described reverse access exploration open loop and adjusts Initial Trans.
Described method, wherein, when the quality of service attribute of initiating business has delay requirement; Described step C comprises following processing:
C21, described terminal estimate reverse access exploration open loop according to the forward direction received power and adjust Initial Trans;
C22, described reverse overload access channel regulatory factor increase adjustment to described reverse access exploration open loop adjustment Initial Trans, obtain reverse access exploration Initial Trans.
The inventive method adopts the mode of Overhead Message to send overload of reversed link indication and reverse overload access channel regulatory factor in control channel, and after overload of reversed link indication situation judged, in conjunction with initiating professional quality of service attribute requirement, calculate different reverse access exploration Initial Transs, and with this Initial Trans transmission access exploration, thereby reduced the access delay of QoS service access Radio Network System, guaranteed the normal operation of QoS business.
Description of drawings
Fig. 1 is the realization flow figure of the inventive method.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in further detail.
The invention provides the method that a kind of wireless communication system inserts fast, see also accompanying drawing 1, its realization flow comprises the steps:
110, in wireless communication system, after the base station is gathered the reverse link load intensity in real time, calculate reverse link traffic overload indication Indication and reverse overload access channel regulatory factor Y, and in control channel, send described reverse link traffic overload indication Indication and described reverse overload access channel regulatory factor Y; Wherein, because control channel is one type in the public overhead channel, so adopt control channel to send reverse link traffic overload indication Indication and reverse overload access channel regulatory factor Y in the present embodiment;
120, the described control channel of the supervision of described terminal periodic, and the described reverse link traffic overload that receives in the described control channel is indicated Indication and described reverse overload access channel regulatory factor Y;
130, described terminal sends to access network by described control channel and inserts message, and according to described overload of reversed link indication Indication and reverse overload access channel regulatory factor Y, in conjunction with initiating professional quality of service attribute requirement, respective algorithms according to described control channel transmission, calculate corresponding oppositely access exploration Initial Trans, and send access exploration to described access network with this reverse access exploration Initial Trans and corresponding transmission rate.
For can make described terminal monitors to described access network to the access acknowledgement message that access exploration returns, also comprise the steps: in the inventive method
140, described terminal monitors described access network, and judges whether the access acknowledgement message that sends to the current access exploration of this terminal is arranged in the forward direction public overhead channel, if having, then described terminal stops access exploration and sends; Otherwise described terminal will be according to the transmission algorithm and the reverse overload access channel regulatory factor Y of described control channel, increase reverse access exploration Initial Trans, continue to send access exploration, till described terminal receives described access acknowledgement message or finishes the access exploration algorithm.
For said method, in the described step 110, in DO Rev.A system, the access network base station side is gathered the reverse link load intensity in real time, and the base station will be according to the size of described reverse link load intensity, described reverse link load intensity size with after the overload of reversed link thresholding is compared, is obtained the reverse link traffic overload and indicates Indication and reverse overload access channel regulatory factor Y; Wherein, described reverse overload access channel regulatory factor Y comprises two parameters: reverse downward regulatory factor of access exploration initialization transmitting power (LoadProbeDownAdjust) and the reverse access exploration initialization transmitting power regulatory factor (LoadProbeUpAdjust) that makes progress; Described LoadProbeDownAdjust and LoadProbeUpAdjust parameter can be according to the reverse link payload, periodically Initial Trans is adjusted in reverse access exploration open loop in real time and carried out corresponding adjusting, and then reach the purpose of adjusting described reverse access exploration initialization transmitting power.
Simultaneously, in control channel, described overload of reversed link indication Indication and reverse overload access channel regulatory factor Y send in the Overhead Message mode, promptly add reverse link traffic overload indication Indication and reverse overload access channel regulatory factor Y in the reserved field of Overhead Message (QuickConfig).Described overload of reversed link indication Indication and reverse overload access channel regulatory factor Y also can adopt alternate manner to send in control channel, such as, in other Overhead Message reserved field, increase LoadProbeDownAdjust and LoadProbeUpAdjust parameter, perhaps increase an Overhead Message that comprises overload of reversed link indication Indication and reverse overload access channel regulatory factor Y parameter.Can guarantee terminal real time monitoring control channel under the cycle sleep mode like this, and reception overload of reversed link indication Indication and reverse overload access channel regulatory factor Y, and need not additionally to increase other search channel, thereby can reach the power saving purpose by wireless communication system.
Wherein, in step 130, if the described overload of reversed link indication Indication indication reverse link traffic overload that terminal receives, be that reverse link traffic overload indication Indication is 1 o'clock, represent that then the reverse link load is bigger, reverse link is in overload, and according to initiating professional QoS attribute specification, be that the QoS attribute has the requirement of prolonging when not having delay requirement and QoS attribute, can divide following two kinds of situations to handle:
The first, when the QoS attribute of initiating business does not have delay requirement, comprise following processing in the step 130:
1311, described terminal will be estimated reverse access exploration open loop adjustment Initial Trans according to the forward direction received power;
1312, described reverse overload access channel regulatory factor Y will reduce adjustment to the reverse access exploration open loop adjustment Initial Trans after estimating, be after described reverse access exploration open loop is adjusted Initial Trans and deducted the downward modulation factor among the reverse overload access channel regulatory factor Y, to obtain reverse access exploration Initial Trans; Its formula is as follows:
X＝-MeanRxPower+OpenLoopAdjust+ProbeInitialAdjust-LoadProbeDownAdjust........................................................(1)
Wherein:
MeanRxPower---forward direction mean receiving power (unit: dBm);
Parameter (unit: dBm) is adjusted in OpenLoopAdjust---open loop;
ProbeInitialAdjust---initial adjustment parameter (unit: dBm);
LoadProbeDownAdjust---following regulatory factor (unit: dBm);
MeanRxPower, OpenLoopAdjust and ProbeInitialAdjust are consistent with implication in the DO Rev.A agreement.
By formula (1) as can be known, reduce the reverse access exploration Initial Trans of terminal, limiting terminal uses minimum access channel speed to send simultaneously, be that terminal uses less reverse access exploration Initial Trans and lower transmission rate to launch, just can guaranteed qos business connection set-up delay the interference of wireless communication system be reached minimum.
The second, when the QoS attribute of initiating business is high to delay requirement, then comprise following processing in the step 130:
1321, described terminal will be estimated reverse access exploration open loop adjustment Initial Trans according to the forward direction received power;
1322, described reverse overload access channel regulatory factor Y will adjust Initial Trans to the reverse access exploration open loop after estimating increases adjustment, be after described reverse access exploration open loop adjustment Initial Trans adds the rise factor of reverse overload access channel regulatory factor Y, obtain reverse access exploration Initial Trans, its formula is as follows:
X＝-MeanRxPower+OpenLoopAdjust+ProbeInitialAdjust+LoadProbeUpAdjust................................................(2)
Wherein:
MeanRxPower---forward direction mean receiving power (unit: dBm);
Parameter (unit: dBm) is adjusted in OpenLoopAdjust---open loop;
ProbeInitialAdjust---initial adjustment parameter (unit: dBm);
LoadProbeUpAdjust---the adjusted factor (unit: dBm);
MeanRxPower, OpenLoopAdjust, ProbeInitialAdjust is consistent with implication in the DO Rev.A agreement.
By formula (2) as can be known, terminal sends according to the reverse access exploration Initial Trans that reverse overload access channel regulatory factor Y increases terminal, is linked into wireless communication system with what the access exploration that guarantees to send for the first time can be tried one's best.
Said method, in step 130, if the described overload of reversed link indication Indication indication reverse link load nonoverload that terminal receives, be that reverse link traffic overload indication Indication is 0 o'clock, represent that then the reverse link load is less, and according to initiating professional QoS attribute specification, comprise that promptly the QoS attribute is not had delay requirement and has delay requirement to the QoS attribute, can divide following two kinds of situations to handle:
The 3rd, when the QoS attribute of initiating business does not have delay requirement, comprise following processing in the step 130:
After described terminal will estimate that Initial Trans is adjusted in reverse access exploration open loop according to the forward direction received power, because need not that Initial Trans is adjusted in reverse access exploration open loop, described reverse overload access channel regulatory factor Y adjusts, so described reverse access exploration open loop is adjusted Initial Trans and is reverse access exploration Initial Trans, its formula is as follows:
X＝-MeanRxPower(dBm)+OpenLoopAdjust+ProbeInitialAdjust
.........................................................................(3)
Wherein:
MeanRxPower---forward direction mean receiving power (unit: dBm);
Parameter (unit: dBm) is adjusted in OpenLoopAdjust---open loop;
ProbeInitialAdjust---initial adjustment parameter (unit: dBm);
MeanRxPower, OpenLoopAdjust, ProbeInitialAdjust is consistent with implication in the DO Rev.A agreement.
By formula (3) as can be known, described terminal need not to utilize reverse overload access channel regulatory factor Y that Initial Trans is adjusted in reverse access exploration open loop and regulates, the reverse access exploration Initial Trans that directly uses enhancing access channel algorithm computation to go out is launched, also need not to limit the maximum transmission rate of reverse access exploration, therefore, when terminal is launched with bigger reverse access exploration Initial Trans and transmission rate, can reduce the access exploration time delay.
The 4th, when the QoS attribute of initiating business is high to delay requirement, comprise following processing in the step 130:
1341, described terminal will be estimated reverse access exploration open loop adjustment Initial Trans according to the forward direction received power;
1342, described reverse overload access channel regulatory factor Y will adjust Initial Trans to the reverse access exploration open loop after estimating increases adjustment, be after described reverse access exploration open loop adjustment Initial Trans adds the rise factor of reverse overload access channel regulatory factor Y, obtain reverse access exploration Initial Trans, its formula is as follows:
X＝-MeanRxPower(dBm)+OpenLoopAdjust+ProbeInitialAdjust+LoadProbeUpAdjust.....................................................(4)
Wherein:
MeanRxPower---forward direction mean receiving power (unit: dBm);
Parameter (unit: dBm) is adjusted in OpenLoopAdjust---open loop;
ProbeInitialAdjust---initial adjustment parameter (unit: dBm);
LoadProbeUpAdjust---the adjusted factor (unit: dBm);
MeanRxPower, OpenLoopAdjust, ProbeInitialAdjust is consistent with implication in the DO Rev.A agreement.
By formula (4) as can be known, Initial Trans is adjusted in the reverse access exploration open loop that terminal uses reverse overload access channel regulatory factor Y to increase after estimating, and terminal is used, and corresponding high transmission rate sends in the access channel, be linked into wireless communication system with what the access exploration that guarantees to send for the first time can be tried one's best, thereby satisfy delay requirement.
In sum, the inventive method adopts the mode of Overhead Message to send overload of reversed link indication and reverse overload access channel regulatory factor in control channel, and after overload of reversed link indication situation judged, in conjunction with initiating professional quality of service attribute requirement, calculate different reverse access exploration Initial Transs, and with this Initial Trans transmission access exploration, thereby reduced the access delay of QoS service access Radio Network System, guarantee the normal operation of QoS business, thereby correspondingly increased the capacity of reverse Radio Network System.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (8)
1. the method that wireless communication system inserts fast is characterized in that this method comprises the steps:
A, base station are gathered the reverse link load intensity in real time, according to described reverse link load intensity size and reverse link traffic overload thresholding compare calculate indication of reverse link traffic overload and reverse overload access channel regulatory factor after, in public overhead channel, send described reverse link traffic overload and indicate and described reverse overload access channel regulatory factor;
The described public overhead channel of the supervision of B, terminal periodic, and receive described reverse link traffic overload indication and described reverse overload access channel regulatory factor;
C, described terminal are judged described reverse link traffic overload indication, and the professional quality of service attribute of combination initiation, calculate reverse access exploration Initial Trans, and send access exploration with this reverse access exploration Initial Trans.
2. method according to claim 1 is characterized in that, comprises after the step C:
D, judging whether described terminal receives the access acknowledgement message that access network returns, is that then described terminal stops to send described access exploration; Otherwise described terminal will increase described reverse access exploration Initial Trans, continue send described access exploration, when described terminal receives described access acknowledgement message till.
3. method according to claim 2 is characterized in that, the mode that described reverse link traffic overload indication and described reverse overload access channel regulatory factor send in described public overhead channel adopts the Overhead Message mode to carry out.
4. method according to claim 3 is characterized in that, described reverse overload access channel regulatory factor comprises downward regulatory factor of reverse access exploration Initial Trans and the reverse access exploration Initial Trans regulatory factor that makes progress.
5. method according to claim 4 is characterized in that, is added with described reverse link traffic overload indication and described reverse overload access channel regulatory factor in the reserved field of described Overhead Message.
6. method according to claim 1 is characterized in that, when described terminal judges goes out described reverse link traffic overload indication overload, and when initiating professional quality of service attribute and not having delay requirement; Described step C comprises following processing:
C11, described terminal estimate reverse access exploration open loop according to the forward direction received power and adjust Initial Trans;
C12, described reverse overload access channel regulatory factor are adjusted Initial Trans to described reverse access exploration open loop and are reduced adjustment, obtain reverse access exploration Initial Trans.
7. method according to claim 1 is characterized in that, when described terminal judges goes out described overload of reversed link indication nonoverload, and when initiating professional quality of service attribute and not having delay requirement; Described step C comprises following processing:
Described terminal estimates reverse access exploration open loop according to the forward direction received power and adjusts Initial Trans, and described reverse access exploration Initial Trans equals described reverse access exploration open loop and adjusts Initial Trans.
8. method according to claim 1 is characterized in that, when the quality of service attribute of initiating business has delay requirement; Described step C comprises following processing:
C21, described terminal estimate reverse access exploration open loop according to the forward direction received power and adjust Initial Trans;
C22, described reverse overload access channel regulatory factor increase adjustment to described reverse access exploration open loop adjustment Initial Trans, obtain reverse access exploration Initial Trans.
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| CN2007101241838A CN101146357B (en) | 2007-10-23 | 2007-10-23 | A quick access method in radio communication system |
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| CN2007101241838A CN101146357B (en) | 2007-10-23 | 2007-10-23 | A quick access method in radio communication system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1489876A1 (en) * | 2003-06-17 | 2004-12-22 | Lucent Technologies Inc. | Method of minimizing reverse channel interference caused by an abnormally high number of access attempts in a wireless communications system |
| CN1655472A (en) * | 2004-02-13 | 2005-08-17 | 北京三星通信技术研究有限公司 | Method and apparatus for controlling transmission speed in transmitting power dispatching on a terminal |
| CN1862989A (en) * | 2005-12-26 | 2006-11-15 | 上海华为技术有限公司 | Method for controlling interference of high-speed up link packet access to adjacent cell |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1489876A1 (en) * | 2003-06-17 | 2004-12-22 | Lucent Technologies Inc. | Method of minimizing reverse channel interference caused by an abnormally high number of access attempts in a wireless communications system |
| CN1655472A (en) * | 2004-02-13 | 2005-08-17 | 北京三星通信技术研究有限公司 | Method and apparatus for controlling transmission speed in transmitting power dispatching on a terminal |
| CN1862989A (en) * | 2005-12-26 | 2006-11-15 | 上海华为技术有限公司 | Method for controlling interference of high-speed up link packet access to adjacent cell |
Non-Patent Citations (1)
| Title |
|---|
| 3GPP2.cdma2000 High Rate Packet Date Air Interface Specification.3RD GENERATION PARTNERSHIP PROJECT 2.2007,3(2),第9-43,9-289,9-290,12-19,12-20,12-24,7-252,7-257,7-258,7-259页. * |
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