CN102186222B - Multi-slot access control method and device of TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system - Google Patents

Abstract

The invention provides a multi-slot access control method and device of a TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system. The method comprises the following steps of: acquiring information of an access application business, and calculating the number of uplink BRUs and the number of downlink BRUs needed to access the business; judging the direction of the business, and performing downlink access control if the direction of the business is one-way downlink; performing uplink access control if the direction of the business is one-way uplink; performing downlink access control if the direction of the business is two-way symmetrical or two-way asymmetrical, and performing uplink access control after the downlink access control is judged to be successful; and performing multi-slot joint code channel distribution according to the number of the uplink BRUs and the downlink BRUs needed to access the business and the number of the BRUs of the business which can be loaded by respective uplink time slots and respective downlink time slots, wherein the number of the BRUs is calculated to obtain in the uplink access control process and the downlink access control process. In the multi-slot access control method and device of the TD-SCDMA system, provided by the invention, the support on the multi-slot access ability of a subscriber terminal is sufficiently taken into consideration, thus, the channel distribution is more flexible, and the success rate of the access is increased.

Description

Multi-slot connection control method and the device of TD-SCDMA system

Technical field

The present invention relates to communication technical field, relate in particular to multi-slot connection control method and the device of a kind of TD-SCDMA of being applied to system.

Background technology

Cdma system is the system of a self-interference, and its power system capacity is not a relatively-stationary value, and has larger elasticity, exists the relation of balance and compromise between the user quality of service quality and access simultaneously.Along with the increase of access user quantity, the load of eating dishes without rice or wine of system increases gradually, if allow air interface load excessive increase, the area coverage of residential quarter will be reduced to below the numerical value of planning so, and the existing service quality that connects also can not be guaranteed.So rationally effectively Admission Control is significant to the stable operation of cdma system.

access judgement for the user in the TD-SCDMA system mainly is based on the business demand whether Radio Resource can satisfy the application access, and Radio Resource comprises frequency, time slot, code channel, power etc., namely when the user initiates business or switches, network need to be current according to system uplink and downlink load situation and physical resource situation adjudicate, with be confirmed whether enough allocation of radio resources give this user and distribute to the new resource of this user after whether can to the stability of network be connected the QoS(Quality of Service of business of vertical connection, service quality) produce serious negative effect.The effect of access control is the qos requirement that should guarantee new access service, again can not be on the expendable impact of QoS generation of access service.

Access control is the important component part in RRM.Generation Mobile Telecommunication System mainly provides speech business, and their data-handling capacity is very limited, and this makes its Admission Control relatively easy.And along with the continuous increase of multimedia service and WWW traffic carrying capacity, be faced with the needs of development 3G (Third Generation) Moblie, 3G (Third Generation) Moblie can provide image and the video information of the service of High Data Rate in order to high quality, can also provide and access at a high speed the Internet service.Just because of the business that 3G (Third Generation) Moblie can provide is many, and the transmission rate between each business is different with QoS, makes its Admission Control become very complicated.

In present academic research and patent documentation, research to access control, mainly concentrate on the resource of single time slot is distributed, namely by estimating the load condition of single time slot after access new business, the peak load that after judgement access new business, whether the load of this time slot allows lower than system, if allow this distributing slot resources is used to new business, otherwise the access of refusal new business.This method does not take into full account TD-SCDMA can be the characteristics of a plurality of time interval resources of user assignment, the whole resource of system is distributed lack flexibility, causes the access success rate of system relatively low; Existing most Admission Control all is based on the algorithm design of WCDMA system simultaneously, can not meet well the characteristics of TD-SCDMA system to the calculating of time-slot load, and the load after the new business access is estimated the shortage accuracy.The system of TD-SCDMA has the system's characteristics that are different from WCDMA, support N frequency etc. as associated detection technique, time-division characteristic, residential quarter, Admission Control should meet the system performance of oneself, and traditional algorithm often relates to complicated matrix operation or interative computation, calculation delay is very large, so just more is difficult to ensure the real-time of card access control.

Summary of the invention

For addressing the above problem, the invention provides multi-slot connection control method and the device of a kind of TD-SCDMA system, make user's channel allocation more flexible, improve the access success rate.

The multi-slot connection control method of a kind of TD-SCDMA system comprises the steps:

Step S1 obtains the information of the business of application access, calculates the described business of access required up BRU number, descending BRU number respectively according to the information of described business;

Step S2, the direction of the described business of judgement:

When the direction of described business is the unidirectional descending access control of carrying out when descending, calculate the BRU number that each descending time slot can carry described business, the BRU number that can carry described business according to described each descending time slot judges whether downlink resource can satisfy the demand of the described business of access, if descending access control is adjudicated successfully;

When the direction of described business is the unidirectional up access control of carrying out when up, calculate the BRU number that each ascending time slot can carry described business, the BRU number that can carry described business according to described each ascending time slot judges whether ascending resource can satisfy the demand of the described business of access, if up access control is adjudicated successfully;

When the direction of described business is bi-directional symmetrical or two-way when asymmetric, carry out descending access control, and carry out up access control after descending access control is adjudicated successfully;

Step S3, the BRU number that the up BRU number that business according to described access is required and each ascending time slot can carry described business and/or access the required descending BRU number of described business and BRU number that each descending time slot can carry described business carries out the multiple time slot joint code channel and distributes;

Describedly calculate the process that each descending time slot can carry the BRU number of described business and comprise: calculate maximum transmission power increment and the required transmitting power increment of each descending time slot described business of access that each descending time slot also can bear, and according to the described maximum transmission power increment that also can bear, required transmitting power increment, the required descending BRU number of the described business of access of the described business of access, calculate the BRU number that each descending time slot can carry described business.

The descending connection control method of multi-slot of a kind of TD-SCDMA system comprises the steps:

Step S211 calculates the maximum transmission power increment Delta P that each descending time slot also can bear _{Max, i}

Step S212, the required transmitting power increment Delta P of difference when calculating the described business of each descending time slot access _i

Step S213 calculates the BRU number that each descending time slot can carry described business, adopts following formula:

$\left\{\begin{array}{c}{p}_{\mathrm{channel},i}=\mathrm{\Δ}{P}_i/\mathrm{reqBru}{\mathrm{No}}_{\mathrm{dl}};\\ {\mathrm{dlavailablebru}}_i=\min (\mathrm{\Δ}{P}_{\max ,i}/p_{\mathrm{channel},i},{\mathrm{Bru}}_i);\end{array}\right.$

In formula, reqBruNo _dlFor accessing the required descending BRU number of described business; p _{Channel, i}The required transmitting power increment of single BRU during for the described business of time slot i access; Δ P _{Max, i}/ p _{Channel, i}Can be used for carrying the BRU number of described business under the available horsepower confined condition for time slot i; Bru _iBe the actual available BRU number of time slot i; Dlavailablebru _iFor the time slot i that obtains at last under the condition that has considered Power Limitation and actual available BRU number restriction can carry the BRU number of described business;

Step S214, the BRU that can carry described business according to each descending time slot that calculates counts dlavailablebru _iSize sort;

Step S215, adopt following formula to judge whether downlink resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{dl}}}{\mathrm{\Σ}}}{\mathrm{dlavailablebru}}_j>={\mathrm{reqBruNo}}_{\mathrm{dl}};$

In formula, dlavailablebru _jBe j corresponding descending BRU number that carries described business of element after arranged in sequence; N _dlThe descending maximum timeslot number of supporting for the user terminal of supporting multislot capability; If satisfy above-mentioned condition, descending access control is adjudicated successfully.

The up connection control method of multi-slot of a kind of TD-SCDMA system comprises the steps:

Step S221 calculates the maximum interference increment Delta I that each ascending time slot also can bear _{Max, i}

Step S222 calculates each ascending time slot at described maximum interference increment Delta I _{Max, i}Restriction is lower can carry the maximum rate R of described business _{Max, i}

Step S223 calculates the BRU number that each ascending time slot can carry described business, adopts following formula:

ulavailablebru _i=min(R _max,i/R _channel,Bru _i);

In formula, R _ChannelData rate for single BRU; R _{Max, i}/ R _ChannelThe maximum interference increment Delta I that can bear for ascending time slot i _{Max, i}Can be used for carrying the BRU number of described business under restriction; Bru _iBe the actual available BRU number of time slot i; Ulavailablebru _iFor the time slot i that obtains at last under the condition that has considered interference-limited and actual available BRU number restriction can carry the BRU number of described business;

Step S224, the BRU that can carry described business according to each ascending time slot that calculates counts ulavailablebru _iSize sort;

Step S225, adopt following formula to judge whether ascending resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{ul}}}{\mathrm{\Σ}}}{\mathrm{ulavailablebru}}_j>={\mathrm{reqBruNo}}_{\mathrm{ul}};$

In formula, ulavailablebru _jBe j corresponding up BRU number that can be used for carrying described business of element after arranged in sequence; N _ulThe maximum ascending time slot number of supporting for the user terminal of supporting multislot capability; ReqBruNo _ulFor accessing the required up BRU number of described business; When satisfying above-mentioned condition, up access control is adjudicated successfully.

The multi-slot access control apparatus of a kind of TD-SCDMA system comprises:

Computing module calculates required up BRU number, the descending BRU number of the described business difference of access for the information of the business that accesses according to application;

The judge module that is connected with described computing module, for the direction that judges described business, the direction of described business comprises bi-directional symmetrical or two-way asymmetric, unidirectional descending, unidirectional up;

The descending access control module that is connected with described judge module, be used for direction when described business and be unidirectional descending, bi-directional symmetrical or two-way when asymmetric, calculate the BRU number that each descending time slot can carry described business, the BRU number that can carry described business according to described each descending time slot judges whether downlink resource can satisfy the demand of the described business of access, if descending access control is adjudicated successfully;

The up access control module that is connected respectively with described judge module, descending access control module, be used for when the direction of described business is unidirectional uplink service, or when the direction of described business be after bi-directional symmetrical or two-way asymmetric and descending access control are adjudicated successfully, calculate the BRU number that each ascending time slot can carry described business, the BRU number that can carry described business according to described each ascending time slot judges whether ascending resource can satisfy the demand of the described business of access, if up access control is adjudicated successfully;

The multi-slot code channel distribution module that is connected respectively with described descending access control module, up access control module, be used for the BRU number that the required up BRU number of business according to described access and each ascending time slot can carry described business and/or access the required descending BRU number of described business and BRU number that each descending time slot can carry described business, carry out the multiple time slot joint code channel and distribute;

Described descending access control module is calculated maximum transmission power increment and the required transmitting power increment of each time slot described business of access that each descending time slot also can bear, and according to the described maximum transmission power increment that also can bear, required transmitting power increment, the required descending BRU number of the described business of access of the described business of access, calculate the BRU number that described each descending time slot can carry described business.

The descending access control apparatus of multi-slot of a kind of TD-SCDMA system comprises:

The descending power computing module is used for calculating the maximum transmission power increment Delta P that each descending time slot also can bear _{Max, i}And access the required transmitting power increment Delta P of described business _i

The descending BRU that is connected with described descending power computing module counts computing module, is used for calculating each descending time slot and can carries the BRU number of described business, adopts following formula:

$\left\{\begin{array}{c}{p}_{\mathrm{channel},i}=\mathrm{\Δ}{P}_i/\mathrm{reqBru}{\mathrm{No}}_{\mathrm{dl}};\\ {\mathrm{dlavailablebru}}_i=\min (\mathrm{\Δ}{P}_{\max ,i}/p_{\mathrm{channel},i},{\mathrm{Bru}}_i);\end{array}\right.$

In formula, reqBruNo _dlFor accessing the required descending BRU number of described business; p _{Channel, i}The required transmitting power increment of single BRU during for the described business of time slot i access; Δ P _{Max, i}/ p _{Channel, i}Can be used for carrying the BRU number of described business under the available horsepower confined condition for time slot i; Bru _iBe the actual available BRU number of time slot i; Dlavailablebru _iFor the time slot i that obtains at last under the condition that has considered Power Limitation and actual available BRU number restriction can carry the BRU number of described business;

Count with described descending BRU the descending order module that computing module is connected, count dlavailablebru for the BRU that can carry described business according to each descending time slot that calculates _iSize sort;

The descending judge module that is connected with described descending order module is used for adopting following formula to judge whether downlink resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{dl}}}{\mathrm{\Σ}}}{\mathrm{dlavailablebru}}_j>={\mathrm{reqBruNo}}_{\mathrm{dl}};$

In formula, dlavailablebru _jBe j corresponding descending BRU number that carries described business of element after arranged in sequence; N _dlThe descending maximum timeslot number of supporting for the user terminal of supporting multislot capability; If satisfy above-mentioned condition, descending access control is adjudicated successfully.

The up access control apparatus of multi-slot of a kind of TD-SCDMA system comprises:

The uplink interference computing module is used for calculating the maximum interference increment Delta I that each ascending time slot also can bear _{Max, i}And at described maximum interference increment Delta I _{Max, i}Restriction is lower can carry the maximum rate R of described business _{Max, i}

The up BRU that is connected with described uplink interference computing module counts computing module, is used for calculating each ascending time slot and can carries the BRU number of described business, adopts following formula:

ulavailablebru _i=min(R _max,i/R _channel,Bru _i);

In formula, R _ChannelData rate for single BRU; R _{Max, i}/ R _ChannelThe maximum interference increment Delta I that can bear for ascending time slot i _{Max, i}Can be used for carrying the BRU number of described business under restriction; Bru _iBe the actual available BRU number of time slot i; Ulavailablebru _iFor the time slot i that obtains at last under the condition that has considered interference-limited and actual available BRU number restriction can carry the BRU number of described business;

Count with described up BRU the up order module that computing module is connected, count ulavailablebru for the BRU that can carry described business according to each ascending time slot that calculates _iSize sort;

The up judge module that is connected with described up order module is used for adopting following formula to judge whether ascending resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{ul}}}{\mathrm{\Σ}}}{\mathrm{ulavailablebru}}_j>={\mathrm{reqBruNo}}_{\mathrm{ul}};$

In formula, ulavailablebru _jBe j corresponding up BRU number that can be used for carrying described business of element after arranged in sequence; N _ulThe maximum ascending time slot number of supporting for the user terminal of supporting multislot capability; ReqBruNo _ulFor accessing the required up BRU number of described business; When satisfying above-mentioned condition, up access control is adjudicated successfully.

multi-slot connection control method and the device of TD-SCDMA of the present invention system, characteristic according to the cdma system self-interference, simultaneously considered can be across the characteristics of a plurality of time slots when in the TD-SCDMA system, the user accesses for emphasis, with the maximum transmission power increment that can carry under the limited lower maximum traffic rate that can carry of uplink interference and descending power confined condition, convert the BRU number that each time slot can be used to, can satisfy the requirement of new business access with the comprehensive resources of this comprehensive judgement up-downgoing multi-slot, taken into full account the support of user terminal to the multi-slot access capability, thereby make user's channel allocation more flexible, improved the access success rate, connecting system and newly the QoS quality requirement of the business of connecting system have also been guaranteed better simultaneously.

Description of drawings

Fig. 1 is the general flow chart of the multi-slot connection control method of TD-SCDMA of the present invention system;

Fig. 2 is the flow chart of the descending connection control method of multi-slot of TD-SCDMA of the present invention system;

Fig. 3 is the flow chart of the up connection control method of multi-slot of TD-SCDMA of the present invention system;

Fig. 4 is the flow chart that the multi-slot code channel distributes;

Fig. 5 is the structural representation of the multi-slot access control apparatus of TD-SCDMA of the present invention system;

Fig. 6 is the structural representation of the descending access control apparatus of multi-slot of TD-SCDMA of the present invention system;

Fig. 7 is the structural representation of the up access control apparatus of multi-slot of TD-SCDMA of the present invention system.

Embodiment

Cdma system is a self-interference system, if user's access is not added control, may finally cause the overload of system, and the quality of service of connecting system be can not be guaranteed.For this reason, a kind of up-downgoing connection control method and device that is applicable to the TD-SCDMA system that the present invention proposes, the characteristics that can meet TD-SCDMA system multi-slot solve the dumb and low problem of access success rate of prior art channel allocation when carrying out access control.

From the angle that the user experiences, block and initially access than allowing user's communication process call drop more can allow the user accept, so the elementary tactics of access control is when system loading is higher, by refusing the new telex network that has existed in the protective plot of calling out.Need for this reason to judge whether each time-slot load of up-downgoing and actual available physical resource in the residential quarter can satisfy the business need of application access, just allow the new business access if satisfy.Describe this programme in detail below in conjunction with accompanying drawing and specific embodiment.

Embodiment one

As shown in Figure 1, a kind of connection control method that is applicable to the multi-slot of TD-SCDMA system of the present invention comprises the steps:

Step S1 obtains the information of the business of application access, and calculates the described business of access required up BRU(Basic Resource Unit respectively according to the information of the business of application access) several, descending BRU number.

The information of above-mentioned business comprises: the maximum timeslot number that on the direction of business, type of service, business maximum rate and user terminal uplink and downlink direction, single subframe is supported respectively etc.The obtain manner of design parameter is with reference to following table:

The needed up-downgoing BRU of present business to be accessed number is mainly type of service and the up-downgoing speed according to business, obtains by the configuration of searching reference in the 3GPP34.108 agreement.

In addition, also need to obtain the measurement parameter of base station physical layer and the corresponding target signal to noise ratio E of QoS performance requirement of business before entering access control _b/ N ₀(being user's bit energy and the ratio of noise spectral density, is a kind of concrete expression of signal to noise ratio), above-mentioned measurement parameter comprise the main broadband received power RTWP(Received Total Wideband Power of each up time slot, can be designated as I _{Total_old, i}) and total transmitting power TCP(Transmitted Carrier Power of descending each time slot, can be designated as P _{Total_old, i}).

The present invention is divided into conversation class, stream class, interactive class, background classes Four types with reference to the 3GPP agreement with type of service, when access control, need to according to different type of service characteristics, require to arrange different target signal to noise ratio E to different QoS _b/ N ₀, the business of new access do not affect the QoS of survice performance requirement that other have accessed, general session class E simultaneously so that can guarantee its qos requirement _b/ N ₀Other type of service settings are higher relatively.

Step S2, the direction of the described business of judgement:

A, when the direction of described business be unidirectional when descending, according to the down transmitting power of each time slot of current area, the target E corresponding to business of application access _b/ N ₀, current descending each time slot actual available BRU situation, and the transmitting power threshold value P of descending each time slot of setting during the network planning _ThresholdCarry out descending access control, calculate the BRU number that each descending time slot can carry described business, the BRU number that can carry described business according to described each descending time slot judges whether downlink resource can satisfy the demand of the described business of access, if descending access control is adjudicated successfully.

Above-mentioned calculate the process that each descending time slot can carry the BRU number of described business and specifically can comprise: calculate maximum transmission power increment, the required transmitting power increment of each descending time slot described business of access that each descending time slot also can bear, and according to the required descending BRU number of the described business of access that calculates in the described maximum transmission power increment that also can bear that calculates, the required transmitting power increment of the described business of access and step S1, calculate the BRU number that described each descending time slot can carry described business.

As shown in Figure 2, above-mentioned descending access control process specifically can comprise the steps:

Step S211 calculates the maximum transmission power increment Delta P that each descending time slot also can bear _{Max, i}Be specially: obtain each descending time slot current transmit power that is reported by the physical layer measurement, according to described current transmit power and maximum transmission power threshold value P _ThresholdObtain described maximum transmission power increment (latter deducts the former and get final product); Described maximum transmission power threshold value P _ThresholdArrange when the network planning, the priority of access service is higher, described maximum transmission power threshold value P _ThresholdLarger;

Step S212, target signal to noise ratio E corresponding according to the QoS performance requirement of business _b/ N ₀, path loss, the background noise of user terminal, current time slot transmitting power, the joint-detection factor and processing gain, required transmitting power increment Delta P when calculating the described business of each descending time slot access _iWherein, transmitting power increment Delta P _iTarget E with business _b/ N ₀, path loss, the background noise of user terminal, current time slot transmitting power P _{Total_old, i}Be directly proportional, and consider TD-SCDMA employing associated detection technique, to transmitting power increment Delta P _iCalculating introduced the joint-detection factor, simultaneously process and introduce processing gain due to signal, data rate, the voice activation factor, the Time Slot Occupancy of having considered business compares and the factors such as total chip bandwidth of system, makes the transmitting power increment of estimating more reasonable;

Step S213 calculates the BRU number that each descending time slot can carry described business, can adopt following formula:

$\left\{\begin{array}{c}{p}_{\mathrm{channel},i}=\mathrm{\Δ}{P}_i/\mathrm{reqBru}{\mathrm{No}}_{\mathrm{dl}};\\ {\mathrm{dlavailablebru}}_i=\min (\mathrm{\Δ}{P}_{\max ,i}/p_{\mathrm{channel},i},{\mathrm{Bru}}_i);\end{array}\right.$

In formula, reqBruNo _dlBe the required descending BRU number of the described business of the access that calculates in step S1; p _{Channel, i}The required transmitting power increment of single BRU during for the described business of time slot i access; Δ P _{Max, i}/ p _{Channel, i}Can be used for carrying the BRU number of described business under the available horsepower confined condition for time slot i; Bru _iBe the actual available BRU number of time slot i; Dlavailablebru _iFor the time slot i that obtains at last under the condition that has considered Power Limitation and actual available BRU number restriction can carry the BRU number of described business;

Step S214, the BRU that can carry described business according to each descending time slot that calculates counts dlavailablebru _iSize sort, preferential, can sort by order from big to small;

Step S215 judges that whether downlink resource can satisfy the demand of the described business of access, can adopt following formula:

$\underset{j=1}{\overset{N_{\mathrm{dl}}}{\mathrm{\Σ}}}{\mathrm{dlavailablebru}}_j>={\mathrm{reqBruNo}}_{\mathrm{dl}};$

In formula, dlavailablebru _jBe j corresponding descending BRU number that can be used for carrying described business of element after arranging by descending order in step S214; N _dlThe descending maximum timeslot number of supporting for the user terminal of supporting multislot capability; When satisfying above-mentioned condition, descending access control is adjudicated successfully, otherwise returns to access failure.

B, when the direction of described business be unidirectional when up, according to the upstream bandwidth total received power of each time slot of current area, the target E corresponding to business of application access _b/ N ₀, current up each time slot actual available BRU situation, and the interference threshold value I of up each time slot of setting during the network planning _TotalCarry out up access control, calculate the BRU number that each ascending time slot can carry described business, the BRU number that can carry described business according to described each ascending time slot judges whether ascending resource can satisfy the demand of the described business of access, if up access control is adjudicated successfully.

Above-mentioned calculate process that each ascending time slot can carry the BRU number of described business and specifically can comprise the steps: to calculate maximum interference increment that each ascending time slot also can bear and the maximum rate of the accessible described business of each ascending time slot, and calculate according to described maximum interference increment, the maximum rate that bears the BRU number that described each ascending time slot can carry described business.

As shown in Figure 3, above-mentioned up access control specifically can comprise the steps:

Step S221 calculates the maximum interference increment Delta I that each ascending time slot also can bear _{Max, i}Be specially: obtain the main broadband received power of each ascending time slot, according to described main broadband received power and interference threshold value I _TotalObtain described maximum interference increment; Described interference threshold value I _TotalArrange when the network planning, the priority of access service is higher, described interference threshold value I _TotalLarger;

Step S222, the corresponding target signal to noise ratio E of QoS performance requirement of the load current according to system (being the main broadband received power of each ascending time slot), business _b/ N ₀, system background noise, maximum interference increment, the joint-detection factor and processing gain, calculate each ascending time slot at described maximum interference increment Delta I _{Max, i}The maximum rate R of the lower accessible described business of restriction _{Max, i}Wherein, the maximum rate R of the lower accessible business to be accessed of maximum interference increment restriction _{Max, i}With system current load, the corresponding up target signal to noise ratio E of QoS performance requirement of business _b/ N ₀, the system background noise is inversely proportional to, with the maximum interference increment Delta I that can carry on the time slot that calculates in step S221 _{Max, i}Be directly proportional, and consider TD-SCDMA and adopt associated detection technique, because processing gain is introduced in the signal processing, considered the factors such as total chip bandwidth of data rate, the voice activation factor, Time Slot Occupancy ratio and the system of business simultaneously, made and estimate the accessible maximum traffic rate R of time slot _{Max, i}More reasonable;

Step S223 calculates the BRU number that each ascending time slot can carry described business, adopts following formula:

ulavailablebru _i=min(R _max,i/R _channel,Bru _i);

In formula, R _ChannelData rate for single BRU; R _{Max, i}/ R _ChannelThe maximum interference increment Delta I that can bear for ascending time slot i _{Max, i}Can be used for carrying the BRU number of described business under restriction; Bru _iBe the actual available BRU number of time slot i; Ulavailablebru _iFor the time slot i that obtains at last under the condition that has considered interference-limited and actual available BRU number restriction can carry the BRU number of described business;

Step S224, the BRU that can carry described business according to each ascending time slot that calculates counts ulavailablebru _iSize sort, preferential, can sort by order from big to small;

Step S225 judges that whether ascending resource can satisfy the demand of the described business of access, can adopt following formula to judge:

$\underset{j=1}{\overset{N_{\mathrm{ul}}}{\mathrm{\Σ}}}{\mathrm{ulavailablebru}}_j>={\mathrm{reqBruNo}}_{\mathrm{ul}};$

In formula, ulavailablebru _jBe j corresponding up BRU number that can be used for carrying this business of element after arranged in sequence in step S224; N _ulThe maximum ascending time slot number of supporting for the user terminal of supporting multislot capability; ReqBruNo _ulUp needed BRU number during for the described business of access that calculates in step S1; When satisfying above-mentioned condition, up access control is adjudicated successfully, otherwise returns to access failure.

C, when the direction of business is bi-directional symmetrical or two-way when asymmetric, only have when all successes of up-downgoing access control judgement, just allow to access this business, namely first carry out descending access control, and carry out up access control after descending access control adjudicated successfully.

Step S3, each ascending time slot that calculates in the up BRU number that business according to the access that calculates in step S1 is required and step S2 can carry the BRU number (can distribute to new business use BRU number) of described business and/or access the required descending BRU number of described business and the BRU number that each descending time slot can carry described business, the target carrier that this business of access is selected in access control, carries out the multiple time slot joint code channel and distributes.When traffic direction is unidirectional when up, the output information of down direction is empty, in like manner, when business is unidirectional when descending, the output information of up direction is empty, namely only exports the information of the direction of bearer service, as the algorithm input that code distributes, the business of application is carried out the physical channel configuration.For convenience of the code minute timing Slot selection operation higher to priority, the BRU that can be before code distributes can carry described business according to each included time slot in the information of exporting counts size each time slot is sorted, according to ordering gap information, emphasis is considered the resource distribution mode of multi-slot, carries out the multi-slot code channel and distributes.

With reference to figure 4, the above-mentioned process of carrying out the distribution of multi-slot code channel specifically can comprise the steps:

Step S301, select optimum time slot (being that available BRU number is maximum) in the gap information that has sorted, judge whether this time slot can satisfy the demand of the described business of access, namely whether the available BRU number of this time slot is less than the needed BRU number of new business access, if be allocated successfully less than return code, carry out code channel and distribute in this time slot, enter if not step S302.Concrete software implementing course can be described below: at first to count Brutotal be 0 to initialization multiple time slot joint total BRU of distributing to business to be accessed, and obtain the required BRU of the application described business of access and count the maximum timeslot number n that Brureq and user terminal are supported; Optimum time slot (being i=0) after selection is sorted from big to small by the BRU number, and read available BRU number (being the BRU number that can the carry described business) information of this time slot; Under the restrictive condition of Midamble-K and under the restrictive condition of common signal channel fixed allocation, it is Bruassigned that note current time slots actual allocated is given the BRU number of this business _iCarry out computing: Brutotal+=Bruassigned _iJudge that Brutotal is whether less than Brureq: if not, carry out code channel and distribute in this time slot, return code is allocated successfully if not; If continue to judge that whether i is less than n;

Step S302, under the maximum timeslot number condition that user terminal is supported, continue to consider the co-allocation of suboptimum time slot, even i is less than n, select the more excellent time slot of the next one after BRU number size sorts press of output, and the available BRU that reads this time slot counts information, carries out code and distributes ... until the code channel of a plurality of time slots distributes the demand that can satisfy user traffic access, complete multiple time slot joint code resource and distribute.This method of salary distribution has changed traditional access strategy of only considering single time slot, has improved the flexibility of code channel distribution and the success rate of service access.

When access control, innovatively the lower maximum traffic rate that can carry of uplink interference restriction and the limited lower maximum power increment that can bear of descending power are converted to the BRU number that each time slot can use (herein each time slot of indication can with the BRU number be the available BRU information of having considered in access control under uplink interference and descending power confined condition), as the input message that code distributes, it is the precondition that realizes that the multi-slot code distributes.

Corresponding with the multi-slot connection control method of a kind of TD-SCDMA of the present invention system, the present invention also provides a kind of TD-SCDMA multi-slot access control apparatus of system, as shown in Figure 5, comprising:

Computing module calculates required up BRU number, the descending BRU number of the described business difference of access for the information of the business that accesses according to application;

The judge module that is connected with described computing module, for the direction that judges described business, the direction of described business comprises bi-directional symmetrical or two-way asymmetric, unidirectional descending, unidirectional up;

The descending access control module that is connected with described judge module, be used for direction when described business and be unidirectional descending, bi-directional symmetrical or two-way when asymmetric, calculate the BRU number that each descending time slot can carry described business, the BRU number that can carry described business according to described each descending time slot judges whether downlink resource can satisfy the demand of the described business of access, if descending access control is adjudicated successfully;

The up access control module that is connected respectively with described judge module, descending access control module, be used for when the direction of described business is unidirectional uplink service, or after the direction of described business is bi-directional symmetrical or two-way asymmetric and descending access control success, calculate the BRU number that each ascending time slot can carry described business, the BRU number that can carry described business according to described each ascending time slot judges whether ascending resource can satisfy the demand of the described business of access, if up access control is adjudicated successfully;

The multi-slot code channel distribution module that is connected respectively with described descending access control module, up access control module, be used for the BRU number that the required up BRU number of business according to described access and each ascending time slot can carry described business and/or access the required descending BRU number of described business and BRU number that each descending time slot can carry described business, carry out the multiple time slot joint code channel and distribute.

Preferably, descending access control module is calculated maximum transmission power increment and the required transmitting power increment of each time slot described business of access that each descending time slot also can bear, and calculates according to the described maximum transmission power increment that also can bear, required transmitting power increment, the required descending BRU number of the described business of access of the described business of access the BRU number that each descending time slot can carry described business.

Preferably, up access control module is calculated maximum interference increment and each ascending time slot that each ascending time slot also can bear can carry the maximum rate of described business, and calculates according to described maximum interference increment, the maximum rate that bears the BRU number that each ascending time slot can carry described business.

Preferably, as shown in Figure 6, above-mentioned descending access control module can also comprise:

The descending power computing module is used for calculating the maximum transmission power increment Delta P that each descending time slot also can bear _{Max, i}And required transmitting power increment Delta P when accessing described business _i

The descending BRU that is connected with described descending power computing module counts computing module, is used for calculating each descending time slot and can carries the BRU number of described business, adopts following formula:

$\left\{\begin{array}{c}{p}_{\mathrm{channel},i}=\mathrm{\Δ}{P}_i/\mathrm{reqBru}{\mathrm{No}}_{\mathrm{dl}};\\ {\mathrm{dlavailablebru}}_i=\min (\mathrm{\Δ}{P}_{\max ,i}/p_{\mathrm{channel},i},{\mathrm{Bru}}_i);\end{array}\right.$

In formula, reqBruNo _dlFor accessing the required descending BRU number of described business; p _{Channel, i}The required transmitting power increment of single BRU during for the described business of time slot i access; Δ P _{Max, i}/ p _{Channel, i}Can be used for carrying the BRU number of described business under available horsepower limit condition for time slot i; Bru _iBe the actual available BRU number of time slot i; Dlavailablebru _iFor the time slot i that obtains at last under the condition that has considered Power Limitation and actual available BRU number restriction can carry the BRU number of described business;

Count with described descending BRU the descending order module that computing module is connected, count dlavailablebru for the BRU that can carry described business according to each descending time slot that calculates _iSize sort;

The descending judge module that is connected with described descending order module is used for adopting following formula to judge whether downlink resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{dl}}}{\mathrm{\Σ}}}{\mathrm{dlavailablebru}}_j>={\mathrm{reqBruNo}}_{\mathrm{dl}};$

In formula, dlavailablebru _jBe j corresponding descending BRU number that carries described business of element after arranged in sequence; N _dlThe descending maximum timeslot number of supporting for the user terminal of supporting multislot capability; If satisfy above-mentioned condition, descending access control is adjudicated successfully.

Descending power computing module of the present invention can also be used for obtaining each descending time slot current transmit power that is reported by the physical layer measurement, calculates described maximum transmission power increment according to described current transmit power and maximum transmission power threshold value; Described maximum transmission power threshold value arranges when the network planning, and the priority of access service is higher, and described maximum transmission power threshold value is larger;

And/or

Described descending power computing module calculates the required transmitting power increment of the described business of described access according to the corresponding target signal to noise ratio of QoS performance requirement of business, path loss, the background noise of user terminal, current time slot transmitting power, the joint-detection factor and processing gain.

In addition, as shown in Figure 7, up access control module of the present invention can also comprise:

The uplink interference computing module is used for calculating the maximum interference increment Delta I that each ascending time slot also can bear _{Max, i}And at described maximum interference increment Delta I _{Max, i}Restriction is lower can carry the maximum rate R of described business _{Max, i}

The up BRU that is connected with described uplink interference computing module counts computing module, is used for calculating each ascending time slot and can carries the BRU number of described business, adopts following formula:

ulavailablebru _i=min(R _max,i/R _channel,Bru _i);

In formula, R _ChannelData rate for single BRU; R _{Max, i}/ R _ChannelThe maximum interference increment Delta I that can bear for ascending time slot i _{Max, i}Can be used for carrying the BRU number of described business under restriction; Bru _iBe the actual available BRU number of time slot i; Ulavailablebru _iFor the time slot i that obtains at last under the condition that has considered interference-limited and actual available BRU number restriction can carry the BRU number of described business;

Count with described up BRU the up order module that computing module is connected, count ulavailablebru for the BRU that can carry described business according to each ascending time slot that calculates _iSize sort;

The up judge module that is connected with described up order module is used for adopting following formula to judge whether ascending resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{ul}}}{\mathrm{\Σ}}}{\mathrm{ulavailablebru}}_j>={\mathrm{reqBruNo}}_{\mathrm{ul}};$

In formula, ulavailablebru _jBe j corresponding up BRU number that can be used for carrying described business of element after arranged in sequence; N _ulThe maximum ascending time slot number of supporting for the user terminal of supporting multislot capability; ReqBruNo _ulFor accessing the required up BRU number of described business; When satisfying above-mentioned condition, up access control is adjudicated successfully.

Preferably, uplink interference computing module of the present invention can also be used for obtaining the main broadband received power of each ascending time slot, obtains described maximum interference increment according to described main broadband received power and interference threshold value; Described interference threshold value arranges when the network planning, and the priority of access service is higher, and described interference threshold value is larger;

And/or

The described uplink interference computing module load current according to system, the corresponding target signal to noise ratio of QoS performance requirement, system background noise, described maximum interference increment, the joint-detection factor and the processing gain of business calculate described maximum rate.

Preferably, can comprise the time slot order module in described multi-slot code channel distribution module, described time slot order module was used for before carrying out the distribution of multi-slot code channel, and the size that can carry the BRU number of described business according to each time slot sorts to each time slot;

And

Described multi-slot code channel distribution module is selected optimum time slot in the gap information that has sorted, judge whether this time slot can satisfy the demand of the described business of access, if carry out code channel and distribute in this time slot; If not, under the maximum timeslot number condition that user terminal is supported, continue to consider the co-allocation of suboptimum time slot, until the associating code channel of a plurality of time slots distributes the demand that can satisfy user traffic access.

Other technologies feature and method of the present invention in device provided by the invention are similar, do not repeat them here.

Traditional TD-SCDMA Admission Control calculates and disturbs greater than thresholding after certain time slot accesses new user, does not just allow the user access this time slot, namely only considers the situation of single time slot access, and lacking the consideration user terminal can be in the tenability of a plurality of time slots accesses.Compare above-mentioned traditional access control, a kind of connection control method and device that is applicable to the up-downgoing multi-slot of TD-SCDMA system provided by the present invention, not only guaranteed in new subscriber access system, the QoS performance that should have has considered that simultaneously new user accesses rear newly-increased uplink interference there are user's QoS influencing factor and newly-increased descending power in network Central Plains on the impact of system.The present invention has following characteristics:

1) considered can be across the characteristics of a plurality of time slots when in the TD-SCDMA system, the user accesses for emphasis of the present invention, with the maximum transmission power increment that can carry under the limited lower maximum traffic rate that can carry of uplink interference and descending power confined condition, be converted to the code channel resource situation that each time slot can be used, comprehensive code channel resource situation by a plurality of time slots, treat access service and access judgement, can facilitate on the one hand code to distribute and carry out code distribution flexibly, can improve the success rate of service access on the other hand, resource is used adequately reasonably;

2) access control flow process of the present invention, system's characteristics of TD-SCDMA have been taken into full account, flow scheme design has been given prominence to the characteristics that the multi-slot code channel distributes, the overall flow design has novelty, current system loading situation when having considered QoS performance requirement, the service access of different business access makes the access judgement have more real-time, science;

3) Output rusults of the present invention, the characteristics that the TD-SCDMA code distributes have been taken into full account, namely be subject to the restriction of Midamble-K for new user assignment code resource the time, and the code resource of distributing can be across time slot allocation, therefore whether Output rusults of the present invention is except accessing successfully, also innovatively the BRU number that can be used for carrying this business of each time slot is exported together, code minute timing is according to the restriction of this BRU number, and the maximum time slot situation that can support of user terminal carries out flexibly that code distributes, and improved the success rate of access.

Embodiment two

As an embodiment preferably, the main distinction of the present embodiment and embodiment one is, also comprises step S10 before step S1: a plurality of carrier waves to cell configuration carry out prioritization; When service access, select the highest carrier wave of priority to carry out access control.

In the TD-SCDMA system, a residential quarter possible configuration a plurality of frequency carrier waves, when business being accessed judgement, in order to raise the efficiency, guarantee the real-time of access, the present invention considers to select the highest carrier wave of priority from N carrier wave of configuration, carry out access control, if the highest carrier wave of this priority all can't access this business, think that other carrier wave current times also can't access this business, therefore the directly application of this business of refusal does not reattempt in other carrier wave accesses.Carrying out the carrier wave prioritization specifically can comprise the steps:

Step S101, calculate the average available BRU number of each carrier wave uplink and downlink time slot:

A) calculate the average available BRU number of each carrier wave ascending time slot, can adopt following formula to calculate:

$\stackrel{\‾}{C_{i,\mathrm{UL}}}=\frac{1}{M_i}\underset{j=1}{\overset{M_i}{\mathrm{\Σ}}}{C}_{i,j};$

In formula, i represents carrier number; J represents timeslot number; M _iThe ascending time slot number of expression carrier wave i, its value is decided according to the configuring condition of the uplink and downlink timeslot number of system; C _i,jThe available BRU number that represents j time slot of i carrier wave;

Represent i the average available BRU number that carrier wave is up, available BRU number described herein refers to be not yet assigned to the code channel that any user uses.

B) calculate the average available BRU number of each carrier wave descending time slot, can adopt following formula to calculate:

$\stackrel{\‾}{C_{i,\mathrm{DL}}}=\frac{1}{6-M_i}\underset{j=M_i+1}{\overset{6}{\mathrm{\Σ}}}{C}_{i,j};$

In formula,

Represent i the average available BRU number that carrier wave is descending, other parameter is consistent with the definition a).

Step S102 calculates the average available BRU number of each carrier wave according to the average available BRU number of the uplink and downlink time slot that calculates.Can adopt following formula to calculate:

$\stackrel{\‾}{C_i}={\mathrm{\α}}_C\·\stackrel{\‾}{C_{i,\mathrm{UL}}}+(1-{\mathrm{\α}}_C)\·\stackrel{\‾}{C_{i,\mathrm{DL}}};$

In formula, α _CThe weighted factor of expression BRU, α _C∈ { 0...1};

The average available BRU number of expression carrier wave i.

Step S103 is according to the average available BRU number of described each carrier wave

Size carry out the carrier wave prioritization. Be worth greatlyr, carrier wave priority is higher.

When there being a plurality of carrier waves

Be worth when identical, can be according to the priority of self-defined policy-flexible configuration carrier wave.

The beneficial effect of prioritization: reduced the operation time delay of admission control algorithm, guaranteed the real-time of service access

Access control of the present invention, on the basis of carrier wave sequence, select the highest carrier wave of priority to access judgement, if the carrier wave that priority is the highest all can't satisfy the requirement of business to be accessed, think that the lower carrier wave of other priority also can't meet the demands, therefore refuse this user, no longer other carrier waves are carried out access control, this way can improve the real-time of access, reduces the extra time delay that increases due to the algorithm operation.

Above-described embodiment of the present invention does not consist of the restriction to protection range of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in claim protection range of the present invention.

Claims (21)

1. the multi-slot connection control method of a TD-SCDMA system, is characterized in that, comprises the steps:

Step S1 obtains the information of the business of application access, calculates the described business of access required up BRU number, descending BRU number respectively according to the information of described business;

Step S2, the direction of the described business of judgement:

When the direction of described business is the unidirectional descending access control of carrying out when descending, calculate the BRU number that each descending time slot can carry described business, and judge according to the BRU number that described each descending time slot can carry described business whether downlink resource can satisfy the demand of the described business of access, if descending access control is adjudicated successfully;

When the direction of described business is the unidirectional up access control of carrying out when up, calculate the BRU number that each ascending time slot can carry described business, the BRU number that can carry described business according to described each ascending time slot judges whether ascending resource can satisfy the demand of the described business of access, if up access control is adjudicated successfully;

When the direction of described business is bi-directional symmetrical or two-way when asymmetric, first carry out descending access control, and carry out up access control after descending access control is adjudicated successfully;

Step S3, the BRU number that the up BRU number that business according to described access is required and each ascending time slot can carry described business and/or access the required descending BRU number of described business and BRU number that each descending time slot can carry described business carries out the multiple time slot joint code channel and distributes;

Describedly calculate the process that each descending time slot can carry the BRU number of described business and comprise: calculate maximum transmission power increment and the required transmitting power increment of each descending time slot described business of access that each descending time slot also can bear, and according to the described maximum transmission power increment that also can bear, required transmitting power increment, the required descending BRU number of the described business of access of the described business of access, calculate the BRU number that each descending time slot can carry described business.

2. the multi-slot connection control method of TD-SCDMA according to claim 1 system, it is characterized in that, also comprise step S10 before step S1: a plurality of carrier waves to cell configuration carry out prioritization, when service access, select the highest carrier wave of priority to carry out access control; Described sequencer procedure comprises:

Step S101 calculates the average available BRU number of each carrier wave ascending time slot and the average available BRU number of each carrier wave descending time slot;

Step S102 calculates the average available BRU number of each carrier wave according to the average available BRU number of the average available BRU number of the ascending time slot that calculates and descending time slot;

Step S103 carries out the carrier wave prioritization according to the size of the average available BRU number of described each carrier wave.

3. the multi-slot connection control method of TD-SCDMA according to claim 1 system, it is characterized in that, describedly calculate the process that each ascending time slot can carry the BRU number of described business and specifically comprise: calculate maximum interference increment and each ascending time slot that each ascending time slot also can bear and to carry the maximum rate of described business, and calculate according to described maximum interference increment, the maximum rate that also can bear the BRU number that each ascending time slot can carry described business.

4. the multi-slot connection control method of according to claim 1 and 2 or 3 described TD-SCDMA systems is characterized in that:

The information of described business comprises: the maximum timeslot number that on the direction of business, type of service, business maximum rate and user terminal uplink and downlink direction, single subframe is supported respectively;

And/or

Also comprise step S11 after step S1, before step S2: obtain the measurement parameter of base station physical layer and the corresponding target signal to noise ratio of QoS performance requirement of business; Described measurement parameter comprises the main broadband received power of up each time slot and total transmitting power of descending each time slot.

5. the multi-slot connection control method of TD-SCDMA according to claim 1 system, is characterized in that, adopts following formula to calculate the BRU number that each descending time slot can carry described business:

$\left\{\begin{array}{c}{p}_{\mathrm{channel},i}={\mathrm{\ΔP}}_i/\mathrm{reqBru}{\mathrm{No}}_{\mathrm{dl}};\\ {\mathrm{dlavailablebru}}_i=\min ({\mathrm{\ΔP}}_{\max ,i}/P_{\mathrm{channel},i}{\mathrm{Bru}}_i);\end{array}\right.$

In formula, p _{Channel, i}The required transmitting power increment of single BRU during for the described business of time slot i access, Δ P _iThe required transmitting power increment of difference during for the described business of each descending time slot access, reqBruNo _dlFor accessing the required descending BRU number of described business, Δ P _{Max, i}Be the maximum transmission power increment that each descending time slot also can bear, Δ P _{Max, i}/ p _{Channel, i}Can be used for carrying the BRU number of described business under the available horsepower confined condition for time slot i; Bru _iBe the actual available BRU number of time slot i; Dlavailablebru _iFor the time slot i that obtains at last under the condition that has considered Power Limitation and actual available BRU number restriction can carry the BRU number of described business;

And/or

The described BRU number that can carry described business according to described each descending time slot judges that the process whether downlink resource can satisfy the demand of the described business of access specifically comprises:

The BRU that can carry described business according to each descending time slot that calculates counts dlavailablebru _iSize sort;

Adopt following formula to judge whether downlink resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{dl}}}{\mathrm{\Σ}}}{\mathrm{dlavailablebru}}_j>=\mathrm{reqBru}{\mathrm{No}}_{\mathrm{dl}};$

In formula, dlavailablebru _jBe j corresponding descending BRU number that carries described business of element after arranged in sequence; N _dlThe descending maximum timeslot number of supporting for the user terminal of supporting multislot capability; If satisfy above-mentioned condition, descending access control is adjudicated successfully.

6. the multi-slot connection control method of TD-SCDMA according to claim 5 system, it is characterized in that, the process of the maximum transmission power increment that each descending time slot of described calculating also can bear specifically comprises: obtain each descending time slot current transmit power that is reported by the physical layer measurement, calculate described maximum transmission power increment according to described current transmit power and maximum transmission power threshold value; Described maximum transmission power threshold value arranges when the network planning, and the priority of access service is higher, and described maximum transmission power threshold value is larger;

And/or

According to the corresponding target signal to noise ratio of QoS performance requirement of business, path loss, the background noise of user terminal, current time slot transmitting power, the joint-detection factor and processing gain, calculate the required transmitting power increment of the described business of described access.

7. the multi-slot connection control method of TD-SCDMA according to claim 3 system, is characterized in that, adopts following formula to calculate the BRU number that each ascending time slot can carry described business:

ulavailablebru _i=min(R _max,i/R _channel,Bru _i);

In formula, R _{Max, i}For each ascending time slot can carry the maximum rate of described business, R under described maximum interference increment restriction _ChannelData rate for single BRU; R _{Max, i}/ R _ChannelCan be used for carrying the BRU number of described business under the maximum interference increment restriction that can bear for ascending time slot i; Bru _iBe the actual available BRU number of time slot i; Ulavailablebru _iFor the time slot i that obtains at last under the condition that has considered interference-limited and actual available BRU number restriction can carry the BRU number of described business;

And/or

The described BRU number that can carry described business according to described each ascending time slot judges that the process whether ascending resource can satisfy the demand of the described business of access specifically comprises:

The BRU that can carry described business according to each ascending time slot that calculates counts ulavailablebru _iSize sort;

Adopt following formula to judge whether ascending resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{ul}}}{\mathrm{\Σ}}}{\mathrm{ulavailablebru}}_j>=\mathrm{reqBru}{\mathrm{No}}_{\mathrm{ul}};$

In formula, ulavailablebru _jBe j corresponding up BRU number that can be used for carrying described business of element after arranged in sequence; N _ulThe maximum ascending time slot number of supporting for the user terminal of supporting multislot capability; ReqBruNo _ulFor accessing the required up BRU number of described business; When satisfying above-mentioned condition, up access control is adjudicated successfully.

8. the multi-slot connection control method of TD-SCDMA according to claim 7 system, it is characterized in that, the process of the maximum interference increment that each ascending time slot of described calculating also can bear specifically comprises: obtain the main broadband received power of each ascending time slot, obtain described maximum interference increment according to described main broadband received power and interference threshold value; Described interference threshold value arranges when the network planning, and the priority of access service is higher, and described interference threshold value is larger;

And/or

The corresponding target signal to noise ratio of QoS performance requirement of the load current according to system, business, system background noise, described maximum interference increment, the joint-detection factor and processing gain calculate described maximum rate.

9. the multi-slot connection control method of according to claim 1 and 2 or 3 described TD-SCDMA systems is characterized in that:

In step S3, before carrying out the distribution of multi-slot code channel, also comprise step: the size that can carry the BRU number of described business according to each time slot sorts to each time slot;

And

Described process of carrying out the distribution of multi-slot code channel specifically comprises:

Step S301 selects optimum time slot in the gap information that has sorted, judge whether this time slot can satisfy the demand of the described business of access, distributes if carry out code channel in this time slot, enters if not step S302;

Step S302 under the maximum timeslot number condition that user terminal is supported, continues to consider the co-allocation of suboptimum time slot, until the associating code channel of a plurality of time slots distributes the demand that can satisfy user traffic access, completes the multiple time slot joint code channel and distributes.

10. the descending connection control method of multi-slot of a TD-SCDMA system, is characterized in that, comprises the steps:

Step S211 calculates the maximum transmission power increment Delta P that each descending time slot also can bear _{Max, i}

Step S212, the required transmitting power increment Delta P of difference when calculating the described business of each descending time slot access _i

Step S213 calculates the BRU number that each descending time slot can carry described business, adopts following formula:

$\left\{\begin{array}{c}{p}_{\mathrm{channel},i}={\mathrm{\ΔP}}_i/\mathrm{reqBru}{\mathrm{No}}_{\mathrm{dl}};\\ {\mathrm{dlavailablebru}}_i=\min ({\mathrm{\ΔP}}_{\max ,i}/P_{\mathrm{channel},i}{\mathrm{Bru}}_i);\end{array}\right.$

In formula, reqBruNo _dlFor accessing the required descending BRU number of described business; p _{Channel, i}The required transmitting power increment of single BRU during for the described business of time slot i access; Δ P _{Max, i}/ p _{Channel, i}Can be used for carrying the BRU number of described business under the available horsepower confined condition for time slot i; Bru _iBe the actual available BRU number of time slot i; Dlavailablebru _iFor the time slot i that obtains at last under the condition that has considered Power Limitation and actual available BRU number restriction can carry the BRU number of described business;

Step S214, the BRU that can carry described business according to each descending time slot that calculates counts dlavailablebru _iSize sort;

Step S215, adopt following formula to judge whether downlink resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{dl}}}{\mathrm{\Σ}}}{\mathrm{dlavailablebru}}_j>=\mathrm{reqBru}{\mathrm{No}}_{\mathrm{dl}};$

In formula, dlavailablebru _jBe j corresponding descending BRU number that carries described business of element after arranged in sequence; N _dlThe descending maximum timeslot number of supporting for the user terminal of supporting multislot capability; If satisfy above-mentioned condition, descending access control is adjudicated successfully.

11. the descending connection control method of multi-slot of TD-SCDMA according to claim 10 system is characterized in that:

In step S211, the process of calculating the maximum transmission power increment that each descending time slot also can bear specifically comprises: obtain the current transmit power that each descending time slot also can bear, obtain described maximum transmission power increment according to described current transmit power and transmitting power threshold value; Described transmitting power threshold value arranges when the network planning, and the priority of access service is higher, and described transmitting power threshold value is larger;

And/or

In step S212, according to the corresponding target signal to noise ratio of QoS performance requirement of business, path loss, the background noise of user terminal, current time slot transmitting power, the joint-detection factor and processing gain, calculate described transmitting power increment.

12. the up connection control method of multi-slot of a TD-SCDMA system is characterized in that, comprises the steps:

Step S221 calculates the maximum interference increment Delta I that each ascending time slot also can bear _{Max, i}

Step S222 calculates each ascending time slot at described maximum interference increment Delta I _{Max, i}Restriction is lower can carry the maximum rate R of described business _{Max, i}

Step S223 calculates the BRU number that each ascending time slot can carry described business, adopts following formula:

ulavailablebru _i=min(R _max,i/R _channel,Bru _i);

In formula, R _ChannelData rate for single BRU; R _{Max, i}/ R _ChannelThe maximum interference increment Delta I that can bear for ascending time slot i _{Max, i}Can be used for carrying the BRU number of described business under restriction; Bru _iBe the actual available BRU number of time slot i; Ulavailablebru _iFor the time slot i that obtains at last under the condition that has considered interference-limited and actual available BRU number restriction can carry the BRU number of described business;

Step S224, the BRU that can carry described business according to each ascending time slot that calculates counts ulavailablebru _iSize sort;

Step S225, adopt following formula to judge whether ascending resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{ul}}}{\mathrm{\Σ}}}{\mathrm{ulavailablebru}}_j>=\mathrm{reqBru}{\mathrm{No}}_{\mathrm{ul}};$

In formula, ulavailablebru _jBe j corresponding up BRU number that can be used for carrying described business of element after arranged in sequence; N _ulThe maximum ascending time slot number of supporting for the user terminal of supporting multislot capability; ReqBruNo _ulFor accessing the required up BRU number of described business; When satisfying above-mentioned condition, up access control is adjudicated successfully.

13. the up connection control method of multi-slot of TD-SCDMA according to claim 12 system is characterized in that:

In step S221, the process of calculating described maximum interference increment specifically comprises: obtain the main broadband received power of each ascending time slot, obtain described maximum interference increment according to described main broadband received power and interference threshold value; Described interference threshold value arranges when the network planning, and the priority of access service is higher, and described interference threshold value is larger;

And/or

In step S222, the corresponding target signal to noise ratio of QoS performance requirement of the load current according to system, business, system background noise, described maximum interference increment, the joint-detection factor and processing gain calculate described maximum rate.

14. the multi-slot access control apparatus of a TD-SCDMA system is characterized in that, comprising:

Computing module calculates required up BRU number, the descending BRU number of the described business difference of access for the information of the business that accesses according to application;

The judge module that is connected with described computing module, for the direction that judges described business, the direction of described business comprises bi-directional symmetrical or two-way asymmetric, unidirectional descending, unidirectional up;

The descending access control module that is connected with described judge module, be used for direction when described business and be unidirectional descending, bi-directional symmetrical or two-way when asymmetric, calculate the BRU number that each descending time slot can carry described business, the BRU number that can carry described business according to described each descending time slot judges whether downlink resource can satisfy the demand of the described business of access, if descending access control is adjudicated successfully;

The up access control module that is connected respectively with described judge module, descending access control module, be used for when the direction of described business is unidirectional uplink service, or when the direction of described business be after bi-directional symmetrical or two-way asymmetric and descending access control are adjudicated successfully, calculate the BRU number that each ascending time slot can carry described business, the BRU number that can carry described business according to described each ascending time slot judges whether ascending resource can satisfy the demand of the described business of access, if up access control is adjudicated successfully;

The multi-slot code channel distribution module that is connected respectively with described descending access control module, up access control module, be used for the BRU number that the required up BRU number of business according to described access and each ascending time slot can carry described business and/or access the required descending BRU number of described business and BRU number that each descending time slot can carry described business, carry out the multiple time slot joint code channel and distribute;

Described descending access control module is calculated maximum transmission power increment and the required transmitting power increment of each time slot described business of access that each descending time slot also can bear, and according to the described maximum transmission power increment that also can bear, required transmitting power increment, the required descending BRU number of the described business of access of the described business of access, calculate the BRU number that described each descending time slot can carry described business.

15. the multi-slot access control apparatus of TD-SCDMA according to claim 14 system, it is characterized in that, described up access control module is calculated maximum interference increment and each ascending time slot that each ascending time slot also can bear can carry the maximum rate of described business, and calculates according to described maximum interference increment, the maximum rate that bears the BRU number that described each ascending time slot can carry described business.

16. the multi-slot access control apparatus of TD-SCDMA according to claim 14 system is characterized in that:

Described descending access control module comprises:

The descending power computing module is used for calculating the maximum transmission power increment Delta P that each descending time slot also can bear _{Max, i}And access the required transmitting power increment Delta P of described business _i

The descending BRU that is connected with described descending power computing module counts computing module, is used for calculating each descending time slot and can carries the BRU number of described business, adopts following formula:

$\left\{\begin{array}{c}{p}_{\mathrm{channel},i}={\mathrm{\ΔP}}_i/\mathrm{reqBru}{\mathrm{No}}_{\mathrm{dl}};\\ {\mathrm{dlavailablebru}}_i=\min ({\mathrm{\ΔP}}_{\max ,i}/P_{\mathrm{channel},i}{\mathrm{Bru}}_i);\end{array}\right.$

In formula, reqBruNo _dlFor accessing the required descending BRU number of described business; p _{Channel, i}The required transmitting power increment of single BRU during for the described business of time slot i access; Δ P _{Max, i}/ p _{Channel, i}Can be used for carrying the BRU number of described business under the available horsepower confined condition for time slot i; Bru _iBe the actual available BRU number of time slot i; Dlavailablebru _iFor the time slot i that obtains at last under the condition that has considered Power Limitation and actual available BRU number restriction can carry the BRU number of described business;

Count with described descending BRU the descending order module that computing module is connected, count dlavailablebru for the BRU that can carry described business according to each descending time slot that calculates _iSize sort;

The descending judge module that is connected with described descending order module is used for adopting following formula to judge whether downlink resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{dl}}}{\mathrm{\Σ}}}{\mathrm{dlavailablebru}}_j>=\mathrm{reqBru}{\mathrm{No}}_{\mathrm{dl}};$

In formula, dlavailablebru _jBe j corresponding descending BRU number that carries described business of element after arranged in sequence; N _dlThe descending maximum timeslot number of supporting for the user terminal of supporting multislot capability; If satisfy above-mentioned condition, descending access control is adjudicated successfully;

And/or

Described up access control module comprises:

The uplink interference computing module is used for calculating the maximum interference increment Delta I that each ascending time slot also can bear _{Max, i}And at described maximum interference increment Delta I _{Max, i}Restriction is lower can carry the maximum rate R of described business _{Max, i}

The up BRU that is connected with described uplink interference computing module counts computing module, is used for calculating each ascending time slot and can carries the BRU number of described business, adopts following formula:

ulavailablebru _i=min(R _max,i/R _channel,Bru _i);

In formula, R _ChannelData rate for single BRU; R _{Max, i}/ R _ChannelThe maximum interference increment Delta I that can bear for ascending time slot i _{Max, i}Can be used for carrying the BRU number of described business under restriction; Bru _iBe the actual available BRU number of time slot i; Ulavailablebru _iFor the time slot i that obtains at last under the condition that has considered interference-limited and actual available BRU number restriction can carry the BRU number of described business;

Count with described up BRU the up order module that computing module is connected, count ulavailablebru for the BRU that can carry described business according to each ascending time slot that calculates _iSize sort;

The up judge module that is connected with described up order module is used for adopting following formula to judge whether ascending resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{ul}}}{\mathrm{\Σ}}}{\mathrm{ulavailablebru}}_j>=\mathrm{reqBru}{\mathrm{No}}_{\mathrm{ul}};$

In formula, ulavailablebru _jBe j corresponding up BRU number that can be used for carrying described business of element after arranged in sequence; N _ulThe maximum ascending time slot number of supporting for the user terminal of supporting multislot capability; ReqBruNo _ulFor accessing the required up BRU number of described business; When satisfying above-mentioned condition, up access control is adjudicated successfully.

17. the multi-slot access control apparatus of according to claim 14 or 15 or 16 described TD-SCDMA systems is characterized in that:

Described multi-slot code channel distribution module comprises the time slot order module, and described time slot order module was used for before carrying out the distribution of multi-slot code channel, and the size that can carry the BRU number of described business according to each time slot sorts to each time slot;

And

Described multi-slot code channel distribution module is selected optimum time slot in the gap information that has sorted, judge whether this time slot can satisfy the demand of the described business of access, if carry out code channel and distribute in this time slot; If not, under the maximum timeslot number condition that user terminal is supported, continue to consider the co-allocation of suboptimum time slot, until the associating code channel of a plurality of time slots distributes the demand that can satisfy user traffic access.

18. the descending access control apparatus of multi-slot of a TD-SCDMA system is characterized in that, comprising:

The descending power computing module is used for calculating the maximum transmission power increment Delta P that each descending time slot also can bear _{Max, i}And access the required transmitting power increment Delta P of described business _i

The descending BRU that is connected with described descending power computing module counts computing module, is used for calculating each descending time slot and can carries the BRU number of described business, adopts following formula:

$\left\{\begin{array}{c}{p}_{\mathrm{channel},i}={\mathrm{\ΔP}}_i/\mathrm{reqBru}{\mathrm{No}}_{\mathrm{dl}};\\ {\mathrm{dlavailablebru}}_i=\min ({\mathrm{\ΔP}}_{\max ,i}/P_{\mathrm{channel},i}{\mathrm{Bru}}_i);\end{array}\right.$

In formula, reqBruNo _dlFor accessing the required descending BRU number of described business; p _{Channel, i}The required transmitting power increment of single BRU during for the described business of time slot i access; Δ P _{Max, i}/ p _{Channel, i}Can be used for carrying the BRU number of described business under the available horsepower confined condition for time slot i; Bru _iBe the actual available BRU number of time slot i; Dlavailablebru _iFor the time slot i that obtains at last under the condition that has considered Power Limitation and actual available BRU number restriction can carry the BRU number of described business;

Count with described descending BRU the descending order module that computing module is connected, count dlavailablebru for the BRU that can carry described business according to each descending time slot that calculates _iSize sort;

The descending judge module that is connected with described descending order module is used for adopting following formula to judge whether downlink resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{dl}}}{\mathrm{\Σ}}}{\mathrm{dlavailablebru}}_j>=\mathrm{reqBru}{\mathrm{No}}_{\mathrm{dl}};$

In formula, dlavailablebru _jBe j corresponding descending BRU number that carries described business of element after arranged in sequence; N _dlThe descending maximum timeslot number of supporting for the user terminal of supporting multislot capability; If satisfy above-mentioned condition, descending access control is adjudicated successfully.

19. the descending access control apparatus of multi-slot of TD-SCDMA according to claim 18 system is characterized in that:

Described descending power computing module also is used for obtaining each descending time slot current transmit power that is reported by the physical layer measurement, calculates described maximum transmission power increment according to described current transmit power and maximum transmission power threshold value; Described maximum transmission power threshold value arranges when the network planning, and the priority of access service is higher, and described maximum transmission power threshold value is larger;

And/or

Described descending power computing module calculates the required transmitting power increment of the described business of described access according to the corresponding target signal to noise ratio of QoS performance requirement of business, path loss, the background noise of user terminal, current time slot transmitting power, the joint-detection factor and processing gain.

20. the up access control apparatus of multi-slot of a TD-SCDMA system is characterized in that, comprising:

The uplink interference computing module is used for calculating the maximum interference increment Delta I that each ascending time slot also can bear _{Max, i}And at described maximum interference increment Delta I _{Max, i}Restriction is lower can carry the maximum rate R of described business _{Max, i}

The up BRU that is connected with described uplink interference computing module counts computing module, is used for calculating each ascending time slot and can carries the BRU number of described business, adopts following formula:

ulavailablebru _i=min(R _max,i/R _channel,Bru _i);

In formula, R _ChannelData rate for single BRU; R _{Max, i}/ R _ChannelThe maximum interference increment Delta I that can bear for ascending time slot i _{Max, i}Can be used for carrying the BRU number of described business under restriction; Bru _iBe the actual available BRU number of time slot i; Ulavailablebru _iFor the time slot i that obtains at last under the condition that has considered interference-limited and actual available BRU number restriction can carry the BRU number of described business;

Count with described up BRU the up order module that computing module is connected, count ulavailablebru for the BRU that can carry described business according to each ascending time slot that calculates _iSize sort;

The up judge module that is connected with described up order module is used for adopting following formula to judge whether ascending resource can satisfy the demand of the described business of access:

$\underset{j=1}{\overset{N_{\mathrm{ul}}}{\mathrm{\Σ}}}{\mathrm{ulavailablebru}}_j>=\mathrm{reqBru}{\mathrm{No}}_{\mathrm{ul}};$

In formula, ulavailablebru _jBe j corresponding up BRU number that can be used for carrying described business of element after arranged in sequence; N _ulThe maximum ascending time slot number of supporting for the user terminal of supporting multislot capability; ReqBruNo _ulFor accessing the required up BRU number of described business; When satisfying above-mentioned condition, up access control is adjudicated successfully.

21. the up access control apparatus of multi-slot of TD-SCDMA according to claim 20 system is characterized in that:

Described uplink interference computing module also is used for obtaining the main broadband received power of each ascending time slot, obtains described maximum interference increment according to described main broadband received power and interference threshold value; Described interference threshold value arranges when the network planning, and the priority of access service is higher, and described interference threshold value is larger;

And/or

The described uplink interference computing module load current according to system, the corresponding target signal to noise ratio of QoS performance requirement, system background noise, described maximum interference increment, the joint-detection factor and the processing gain of business calculate described maximum rate.

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