CN101207895B - System and method for managing resource in mobile communication network - Google Patents

Abstract

The invention discloses a resource management system of a mobile communication network and the method thereof. The system includes a terminal and network-side device. The network-side device comprises a bandwidth reserving and distributing unit used for reserving resources and distributing bandwidth for the terminal according to the reserved bandwidth parameter of the terminal and the network-side usable bandwidth; a flow control unit used for forecasting the possibility that the terminal executes high speed downlink shared channel changes in accordance with the data which will be sent to the terminal and the channel parameters of the terminal to generate low control ability distributing frames to control the flow; a packet scheduling and resource distributing unit used for executing packet scheduling and distributing resources; therefore the high speed download packet access can support various services well and the network resources are used sufficiently.

Description

Resource management system in a kind of mobile communications network and method

Technical field

The present invention relates to moving communicating field, the high-speed packet that particularly relates to a kind of mobile communications network inserts (HSPA)/high-speed packet and inserts the resource reservation system and method for supporting real time business in the evolution (HSPA+).

Background technology

4.2.4.3 joint according to 3G (Third Generation) Moblie technical standard 3GPP TS25.321V6.9.0, medium access control-high speed the sublayer of base station (Node B) (Media Access Control-High Speed, MAC-hs) need be to (Radio Network Controller, data RNC) are carried out flow control, scheduling and processed etc. from radio network controller.

Simultaneously, according to the appendix A of 3G (Third Generation) Moblie technical standard 3GPP TS25.308V6.3.0, (High Speed Downlink Packet Access HSDPA) can support to flow class, interactive class and background business in the high speed downlink packet access.(see people's such as " the The effect of F-DPCH on VoIP over HSDPA Capacity " that be published in IEEE/VTC2006 spring and Bang Wang research (see and be published in IEEE/VTC2005 " the Performance ofVoIP on HSDPA " in spring), the session service with hard real-time requirement (refers to the IPization voice here according to people's such as Stefan Wanstedt research; IP is an Internet Protocol) also can on high-speed downlink packet access channel, transmit preferably.

Further, 5.3.2.6 joint according to 3G (Third Generation) Moblie technical standard 3GPP TS25.211V6.7.0, WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) network will progressively be introduced fractional dedicated physical channel (Fractional-Dedicated Physical CHannel, F-DPCH), progressively remove dedicated channel (Dedicated CHannel, DCH).So, downlink business will progressively transfer to high speed descending sharing channel (High Speed-Downlink Shared CHannelHS-DSCH) (except the fraction business also at forward access channel (Forward Access CHannel, FACH), broadcast channel (Broadcast CHannel, BCH) and on the paging channel (Paging Channel, PCH)).In addition, insert evolution (High Speed Packet Access evolution according to high-speed packet, HSPA+) demand, following HSPA+ network will carry all types of business with HSDPA at down direction and (comprise Signaling Radio Bearer (Signalling Radio Bearer, SRB) business, in that up direction will (Enhanced Dedicated CHannel E-DCH) carries all types of business with strengthening dedicated channel.

For at GPRS/EDGE (General Packet Radio Service/Enhanced Data Rate forGSM Evolution, GPRS/enhanced data rates for gsm evolution) provide real time business on the network, patent publication No. is that " Admission control and resourcereservation for a guaranteed quality of service " (" access control that is used to guarantee service quality and the resource reservation ") of EP1467588 proposed a kind of method for obligating resource.But use high speed descending sharing channel (HS-DSCH) because high speed downlink packet inserts (HSDPA), the resource reservation in this technical scheme is unfavorable for the optimum utilization of resource.Thereby this method is not suitable for the HSPA/HSPA+ network.

Patent publication No. be WO2005060189's " RESOURCE RESERVATION IN APACKET SWITCHED TELECOMMUNICATIONS " (" method for obligating resource in the packet-switched telecommunications net ") proposed a kind of at universal mobile telecommunications system (Universal MobileTelecommunications System, UMTS) (ResourceReSerVation Protocol RSVP) realizes the method for resource reservation by introducing RSVP in the system.But this method is not suitable for using the HSPA/HSPA+ network of shared channel equally.

Summary of the invention

Problem to be solved by this invention provides resource management system and the method in a kind of mobile communications network, and it inserts high speed downlink packet and can support various types of business preferably and can make full use of Internet resources.

For realizing the resource management system in a kind of mobile communications network that the object of the invention provides, comprise terminal and network equipment, comprise in the described network equipment reserving and distribute bandwidth unit, flow controlling unit, packet scheduling and resource allocation unit, wherein:

Described reservation distributes bandwidth unit, is used for reservation service bandwidth parameter and network side available bandwidth according to terminal, for described terminal is carried out resource reservation and allocated bandwidth;

Described flow controlling unit is used for according to the data that will send to terminal, and the channel parameter of terminal, terminal is carried out the possibility of high speed descending sharing channel change and predicts, produces the Flow Control capability distribution frame, carries out flow control;

Described packet scheduling and resource allocation unit are used to carry out packet scheduling and resource allocation.

Described flow controlling unit comprises the transmission data capture unit, the channel parameter acquiring unit, and bandwidth change predicting unit, the capability distribution frame generation unit, wherein:

Described transmission data capture unit is used to obtain to send to the data of terminal;

Described channel parameter acquiring unit is used to obtain the channel parameter of terminal;

Described bandwidth change predicting unit is used for the channel parameter data according to the terminal that obtains, and carries out the base station or the evolution base station bandwidth change prediction of network side, obtains the possibility that terminal is carried out the high speed descending sharing channel change;

The capability distribution frame generation unit is used for according to will sending to the data of terminal, and according to the channel parameter of terminal, terminal is carried out the possibility of high speed descending sharing channel change and handle, and produces the Flow Control capability distribution frame, carries out flow control.

Described capability distribution frame generation unit comprises system calculation unit, judging unit, and the amount allocation units, wherein:

Described system is calculated the unit, is used to add up and/or calculate the current behaviour in service of each employed buffering area of priority query;

Described judging unit, whether the current height of buffering area that is used to judge each priority query is between last Lower Threshold;

Described amount allocation units are used to utilize the throughput and the maximum protocol Data Unit size of bandwidth reserved and terminal, and the possibility that changes of terminal, produce the Flow Control amount that network side is given terminal distribution.

Described packet scheduling and resource allocation unit comprise that channel data obtains the unit, the comprehensive priority evaluation unit, and the selection scheduling allocation units, wherein:

Channel data obtains the unit, is used for obtaining channel quality data from the base station or the evolution base station physical layer of network side;

The comprehensive priority evaluation unit is used for time of having waited for since the last scheduled according to terminal, and channel conditions and throughput estimated value, estimates the comprehensive priority of each terminal;

The selection scheduling allocation units select to have the peaked one or more terminals of comprehensive priority, finish packet scheduling, carry out resource allocation at terminal room then.

Described resource is to support the resource of real time business among the HSPA/HSPA+ of mobile communications network.

Described communication network is the WCDMA communication network, perhaps TD-SCDMA communication network, perhaps CDMA2000 communication network.

For realizing that the object of the invention also provides the method for managing resource in a kind of mobile communications network, comprises the following steps:

Steps A according to the reservation service bandwidth parameter and the network side available bandwidth of terminal, is that terminal is carried out resource reservation and allocated bandwidth at network side;

Step B, according to will sending to the data of terminal, and the channel parameter of terminal carries out the possibility of high speed descending sharing channel change and predicts to terminal at network side, the base station of network side or evolution base station produce the Flow Control capability distribution frame, carry out flow control;

Step C carries out packet scheduling and resource allocation at network side.

Described step B specifically comprises the following steps:

Step B1, network side obtain to send to the data of terminal from interface;

Step B2, network side obtain the channel conditions parameter of terminal from packet scheduler, physical layer;

Step B3 changes prediction according to the data of the channel parameter of the terminal that is obtained, and obtains the possibility that terminal is carried out the high speed descending sharing channel change;

Step B4, network side is according to the data that will send to terminal, and the channel parameter of terminal, terminal is carried out the possibility of high speed descending sharing channel change and handles, and produces the Flow Control capability distribution frame, carries out flow control.

Described step B4 specifically comprises the following steps:

Step B41, system is calculated the current behaviour in service of each employed buffering area of priority query;

Step B42, whether the current height of buffering area of judging each priority query is between last Lower Threshold, if between last Lower Threshold, then whole sub-process finishes; Otherwise forward step B43 to;

Step B43, network side utilize the throughput and the maximum protocol Data Unit size of bandwidth reserved and terminal, and terminal changes possibility, produce the Flow Control amount that network side is given terminal distribution.

Described step C specifically comprises the following steps:

Step C1, the medium access control-high speed sublayer of network side obtains channel quality data from physical layer;

Step C2, estimates the comprehensive priority of each terminal at the time that the packet scheduler of medium access control-high speed sublayer has been waited for since the last scheduled according to terminal, and channel conditions and throughput estimated value;

Step C3, the packet scheduler of medium access control-high speed sublayer select to have peaked preceding Q the terminal of comprehensive priority, finish packet scheduling, carry out resource allocation at terminal room then;

Wherein, the number of users of Q in a Transmission Time Interval, dispatching.

The reservation service bandwidth parameter of described terminal comprises and carries out professional needed assurance bit rate, professional priority, the sum of the user terminal of access network side;

The channel parameter of described terminal comprises the carrier/interface ratio, the power control command on the up Dedicated Control Channel of the channel quality indication of throughput, the terminal of terminal, up Dedicated Control Channel, at the transmitting power of the part Dedicated Control Channel of this terminal.

The invention has the beneficial effects as follows: resource management system in the mobile communications network of the present invention and method, support resource reservation and resource allocation, flow control and the packet scheduling of real time business, make real time business insert in (HSDPA) and the high-speed packet access evolution (HSPA+) in high speed downlink packet and have higher service quality (Quality of Service QoS), throughput is still higher simultaneously.

Description of drawings

Fig. 1 is the resource management system structural representation of embodiment of the invention HSPA;

Fig. 2 is the resource management system structural representation of embodiment of the invention HSPA+/SAE;

Fig. 3 is evolution base station and an IAD connection diagram among the HSPA+/SAE among Fig. 2;

Fig. 4 A is evolution base station and an IAD downlink transfer schematic diagram among the HSPA+/SAE among Fig. 2;

Fig. 4 B is evolution base station and an IAD uplink schematic diagram among the HSPA+/SAE among Fig. 2;

Fig. 5 is the resource management system structural representation of mobile communications network of the present invention;

Fig. 6 is the method for managing resource flow chart of mobile communications network of the present invention;

Fig. 7 is a flow control process flow chart among Fig. 6;

Fig. 8 is a traffic threshold control schematic diagram in the resource management process;

Fig. 9 produces Flow Control capability distribution frame process flow diagram among Fig. 7;

Figure 10 is packet scheduling and a resource allocation flow chart among Fig. 6;

Figure 11 utilizes resource management system of the present invention and method that the QoS of customer (QoS) of 128kbps video flowing is guaranteed situation simulation result figure.

Embodiment

In order to make purpose of the present invention, technical scheme and advantage clearer,, resource management system and method in a kind of mobile communications network of the present invention are further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.

The present invention is particularly with a kind of third generation (3G) wireless mobile telecommunication technology Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, WCDMA) resource management system in the mobile communications network of communication network and method and be described, but the present invention is suitable for other mobile communications network equally, as time division SCDMA (Time-Division Synchronization CodeDivision-Multiple-Access, TD-SCDMA) communication network, CDMA 2000 (CodeDivision Multiple Access2000, CDMA2000) situation of communication network.

As shown in Figure 1, in the base station-radio network controller interface (Iub) of WCDMA network (based on 3GPP Release5/6/7 version), the flow control capability distribution frame is produced by medium access control-high speed sublayer 110 (MAC-hs) of base station 11 (Node B), flow control request frame and Frame are produced by the MAC-d layer (when switching, may need the layer by MAC-c/sh in the middle of this) of radio network controller 12 (RNC).In the base station 11 (NodeB) of WCDMA network (based on 3GPP Release5/6/7 version), packet scheduling is carried out in medium access control-high speed sublayer 110 (MAC-hs).

As shown in Figure 2, at HSPA+/system architecture evolution (System Architecture Evolution, SAE) in the target that develops in the future, the function of radio network controller 12 (RNC) and Serving GPRS Support Node (Serving GPRS Supporting Node, SGSN) part of functions will progressively be transferred to base station 11 (Node B) and form evolution base station 42 (eNode B), another part function of SGSN will progressively be transferred to GPRS Support Node gateway (Gateway GPRS Supporting Node, GGSN) form IAD 41 (access GateWay, aGW).At this time, as shown in Figure 3, evolution base station 42 is connected by the S1 interface with IAD 41, and an evolution base station 42 can be connected to 41, one IADs 41 of a plurality of IADs and also can connect a plurality of evolution base stations 42.Between evolution base station 42 and the IAD 41, by RRA and RRQ channel transmission data, wherein, shown in Fig. 4 A, at downlink transmission direction, evolution base station 42 transmits to IAD 41 by the RRA channel, and IAD 41 transmits data by the RRQ channel to evolution base station 42; Shown in Fig. 4 B, in the uplink direction, evolution base station 42 transmits data by the RRQ channel to IAD 41, and IAD 41 transmits data by the RRA channel to evolution base station 42.

In HSPA+/SAE, flow control and resource reservation mechanism affact between evolution base station 42 and the IAD 41, perhaps leave in the evolution base station 42 of radio network controller 20 (Legacy RNC) in support, flow control and resource reservation mechanism affact evolution base station 42 and leave between the radio network controller 20, and packet scheduler is on evolution base station 42.

It is a level and smooth progressive process that the WCDMA system evolves to the HSPA+/SAE structural requirement from the HSPA/SGSN/GGSN structure, and this just requires the base station 11 (Node B) of network side or resource reservation, flow control and the packet scheduling on the evolution base station 42 (eNode B) to have good adaptability.

For achieving the above object, as shown in Figure 5, the high-speed packet that the invention provides a kind of mobile communications network inserts (HSPA)/high-speed packet and inserts the resource management system of supporting real time business in the evolution (HSPA+), comprises terminal 51 and network equipment 50.

Wherein, comprise in the described network equipment 50 reserving and distribute bandwidth unit 52, be used for reservation service bandwidth parameter and network side available bandwidth, for terminal 51 is carried out resource reservation and allocated bandwidth according to terminal 51.

The reservation service bandwidth parameter of described terminal 51 comprises and carries out professional needed assurance bit rate, professional priority, the sum of the user terminal 51 of access network side etc.

According to formula (1) at base station 11 or the evolution base station 42 and the IAD 41 of network side or to leave between the radio network controller 20 (Legacy RNC) be that m terminal 51 (UE) carried out resource reservation and resource allocation.

$\mathrm{BW}\left(m\right)=\frac{\mathrm{\α}\left(m\right)\·\mathrm{GBR}\left(m\right)}{\underset{i=1}{\overset{K}{\mathrm{\Σ}}}\mathrm{GBR}\left(i\right)}\·\mathrm{Traf\; Pri}\·\mathrm{TotalBW}\·\mathrm{Ratio}$ (formula 1)

Wherein, BW (m) gives 51 reservations of m terminal and the bandwidth of distributing for network side (comprising base station 11 or evolution base station 42 and IAD 41); α (m) is the fixed constant that is provided with at the variety classes user; K is that GBR in the network (i) is not 0 total number of users; GBR (m) is that m terminal 51 carried out the needed assurance bit rate of a certain business; Traf Pri is the priority of m terminal 51 business of being applied for; TotalBW is the network side available bandwidth; Ratio is that network side can be for the ratio of RSVP.

Flow controlling unit 53 is used for according to the data that will send to terminal 51, and the channel parameter of terminal 51, terminal 51 is carried out the possibility of high speed descending sharing channel change and predicts, produces the Flow Control capability distribution frame, carries out flow control.

According to formula (2) at base station 11 or the evolution base station 42 and the IAD 41 of network side or leave over and carry out flow control between the radio network controller 20.

(formula 2)

Wherein, " TRUE " refers to that the business of this terminal 51 is real time business, and " else " represents that the business of this terminal 51 does not have real-time requirement.

The Flow Control amount that Credit (m) distributes for m terminal 51 for network side; (int) expression rounding operation; The implication cotype (1) of BW (m); Throughput (m) is the throughput of m terminal 51; MaximumPDULength (m) is protocol Data Unit (Protocol Data Unit, PDU) size of the maximum of m terminal 51 business of being applied for; MAX is for getting maximum operation; P_CellChange is the possibility that terminal 51 is carried out serving BS 11 or evolution base station 42 changes.The calculating of P_CellChange as the formula (3);

Be fixed constant.

$P\_\mathrm{CellChange}=\frac{\mathrm{Power}\_F\_\mathrm{DPCH}+\mathrm{\α}\·\underset{i=1}{\overset{N}{\mathrm{\Σ}}}\mathrm{TPC}\_\mathrm{UL}\_\mathrm{DPCCH}\left(i\right)}{\mathrm{\κ}+\mathrm{\β}\·\mathrm{Throughput}+\underset{j=1}{\overset{M}{\mathrm{\Σ}}}{\mathrm{\λ}}_j\·{\mathrm{CQI}}_j+\mathrm{\μ}\·\mathrm{SIR}\_\mathrm{UL}\_\mathrm{DPCCH}}\·100\%$

(formula 3)

Wherein, Power_F_DPCCH is the transmitting power that sends to the part Dedicated Control Channel (F-DPCH) of each terminal 51; TPC_UL_DPCCH is transmitting power control (Transmit Power Control, TPC) order on the up Dedicated Control Channel; Throughput is the throughput of terminal 51; CQI is the channel quality indication of terminal 51; SIR_UL_DPCCH is the signal interference ratio of up Dedicated Control Channel pilot field; α, N, k, β, M, λ, μ are fixed constant.

Packet scheduling and resource allocation unit 54 are used to carry out packet scheduling and resource allocation.

On base station 11 or evolution base station 42, carry out packet scheduling and resource allocation according to formula (4).

$\mathrm{Priorit}{y}_m\left(t\right)=(\mathrm{\λ}\·{\mathrm{\β}}_m\·T_m\left(t\right)+\frac{1+\mathrm{\μ}\·\mathrm{ChCon}{d}_m\left(t\right)}{1+\mathrm{\ν}\·{\mathrm{Th}}_m\left(t\right)})\·\mathrm{Traf}{\mathrm{Pri}}_m$ (formula 4)

Wherein, Priority _m(t) be the t comprehensive priority of m terminal 51 constantly.λ, μ, ν are fixed constant.β _mBe the constant relevant with business.T _m(t) be t time of having waited for since the last scheduled of m terminal 51 constantly.ChCond _m(t) be the t channel conditions of user m constantly, as the formula (5); Th _m(t) be in the t throughput estimated value of user m constantly.TrafPri _mService priority for user m.

(formula 5)

Wherein, M,

, β, γ be fixed constant, CQI is the channel quality indication of terminal 51, TPC is uplink dedicated physical channels (Uplink-Dedicated Physical Control CHannel, UL-DPCCH) power control command on, SIR (Signal-to-Interference Rati) is the signal interference ratio of up Dedicated Control Channel pilot field.

Described flow controlling unit 53 comprises sending data capture unit 531, channel parameter acquiring unit 532, bandwidth change predicting unit 533, frame generation unit 534.

Described transmission data capture unit 531 is used to obtain to send to the data of terminal 51.

Described channel parameter acquiring unit 532 is used to obtain the channel parameter of terminal 51.

The channel parameter of described terminal 51 comprises channel quality indication (CQI), the carrier/interface ratio (SIR) of up Dedicated Control Channel (UL-DPCCH), power control (TPC) order on the up Dedicated Control Channel (UL-DPCCH) of throughput, the terminal 51 of terminal 51, at the data such as transmitting power of the part Dedicated Control Channel (F-DPCH) of this terminal 51.

Described bandwidth change predicting unit 533 is used for the channel parameter data according to the terminal 51 that obtains, and carries out the base station 11 or the evolution base station 42 bandwidth change prediction of network side, obtains the possibility that terminal 51 is carried out the high speed descending sharing channel change.

Frame generation unit 534 is used for according to will sending to the data of terminal 51, and handles according to the possibility that the channel parameter of terminal 51 carries out the high speed descending sharing channel change to terminal 51, produces the Flow Control capability distribution frame, carries out flow control.

Described frame generation unit 534 comprises system calculation unit 5341, judging unit 5342, amount allocation units 5343.Wherein:

Described system is calculated unit 5341, is used to add up and/or calculate the current behaviour in service of each employed buffering area of priority query.

Described judging unit 5342, whether the current height of buffering area that is used to judge each priority query is between last Lower Threshold.

Described amount allocation units 5343 are used to utilize the throughput and the maximum protocol Data Unit size of bandwidth reserved and terminal 51, and the possibility that changes of terminal 51, produce the Flow Control amount that network side distributes for terminal 51.

Packet scheduling and resource allocation unit 54 comprise that channel data obtains unit 541, comprehensive priority evaluation unit 542, selection scheduling allocation units 543.Wherein:

Channel data obtains unit 541, is used for obtaining data such as channel quality from the base station 11 or evolution base station 42 physical layers of network side;

Comprehensive priority evaluation unit 542 is used for time of having waited for since the last scheduled according to terminal 51, and channel conditions and throughput estimated value, estimates the comprehensive priority of each terminal 51;

Selection scheduling allocation units 543 select to have the peaked one or more terminals 51 of comprehensive priority, finish packet scheduling, carry out resource allocation at 51 at terminal then.

Support the resource management system of real time business among the HSPA/HSPA+ of mobile communications network of the present invention, between Node B and RNC (for HSPA+, then between eNode B and aGW) carry out the reservation and the distribution of transmission bandwidth, Node B (for HSPA+, then being eNode B) carries out packet scheduling and resource allocation then.Support the resource management system of real time business can make business can obtain favorable service quality (QoS) guarantee among the HSPA/HSPA+ of mobile communications network of the present invention with real-time requirement, and the system throughput height.

As shown in Figure 6, below in conjunction with supporting the management method of the resource of real time business further to describe in detail in high-speed packet access (HSPA)/high-speed packet access evolution (HSPA+) of accompanying drawing to a kind of mobile communications network of the embodiment of the invention.

Step S100 is according to the reservation service bandwidth parameter and the network side available bandwidth of terminal 51, at the evolution base station 11 and the IAD 41 of network side or leave between the radio network controller 20 and carry out resource reservation and allocated bandwidth for terminal 51.

The reservation service bandwidth parameter of described terminal 51 comprises and carries out professional needed assurance bit rate, professional priority, the sum of the user terminal 51 of access network side etc.

The embodiment of the invention can be reserved and be assigned as example and describe with network side during with the bandwidth of giving terminal 51 and reserve and distributing for 20% of bandwidth.

Reservation service bandwidth parameter according to terminal 51, and network side available bandwidth, at network side is that terminal 51 is reserved and the distribution bandwidth, promptly according to carrying out professional needed assurance bit rate, the priority of business and the ratio of network side available bandwidth, in user terminal 51 sums of whole access network sides, carry out bandwidth resources and reserve and resource allocation, as the formula (6):

$\mathrm{BW}\left(m\right)=\frac{\mathrm{GBR}\left(m\right)}{\underset{i=1}{\overset{K}{\mathrm{\Σ}}}\mathrm{GBR}\left(i\right)}\·\mathrm{Traf\; Pri}\·\mathrm{TotalBW}\·20\%$ (formula 6)

That is to say that the α (m) in the formula (1) equals 1.

Wherein, BW (m) is the bandwidth that network side (base station 11 or evolution base station 42 and IAD 41) reserves and distribute for m terminal 51; GBR (m) is that m terminal 51 carried out the needed assurance bit rate of a certain business; K is that GBR in the network (i) is not 0 total number of users; TrafPri is the priority of m terminal 51 business of being applied for; TotalBW is the network side available bandwidth; 20% for network side can be for the ratio of RSVP.

Step S200, between the base station 11 of network side or evolution base station 42 and IAD 41 according to the data that will send to terminal 51, and the channel parameter of terminal 51, terminal 51 being carried out the possibility of high speed descending sharing channel change predicts, the base station 11 of network side or evolution base station 42 produce the Flow Control capability distribution frame, carry out flow control.

As shown in Figure 7, this step comprises following 4 sub-steps:

Step S210, the base station 11 of network side or evolution base station 42 obtain to send to the data of terminal 51 from the S1 interface.

Step S220, the base station 11 of network side or evolution base station 42 obtain the channel conditions parameter of terminal 51 from packet scheduler, physical layer etc.

The channel conditions parameter of described terminal 51 comprises channel quality indication (CQI), the carrier/interface ratio (SIR) of up Dedicated Control Channel (UL-DPCCH), power control (TPC) order on the up Dedicated Control Channel (UL-DPCCH) of throughput, the terminal 51 of terminal 51, at the data such as transmitting power of the part Dedicated Control Channel (F-DPCH) of this terminal 51.

Step S230 carries out serving BS 11 or evolution base station 42 change predictions according to the data of the channel parameter of the terminal 51 that is obtained, and obtains the possibility that terminal 51 is carried out the high speed descending sharing channel change.

VoIP (Voice over IP, ip voice) business need energy high-speed mobile, thereby carry out serving BS 11 or evolution base station 42 change predictions according to the data of the channel parameter of the terminal 51 that is obtained, obtain terminal 51 and carry out the possibility of high speed descending sharing channel change, avoid VoIP when carrying out the switching of different base station 11, may cause loss of data, even call drop.

By the transmitting power of the part Dedicated Control Channel that sends to each terminal 51 and the power control command bandwidth on the up Dedicated Control Channel and, and the indication of the throughput of terminal 51, channel quality and, the ratio between the carrier/interface ratio of up Dedicated Control Channel, carry out the base station 11 or the evolution base station 42 bandwidth change prediction of network side, obtain the possibility that terminal 51 is carried out the high speed descending sharing channel change.

Preferably, its computing formula is suc as formula (7):

$P\_\mathrm{CellChange}=\frac{\mathrm{Power}\_F\_\mathrm{DPCH}+\mathrm{\α}\·\underset{i=1}{\overset{N}{\mathrm{\Σ}}}\mathrm{TPC}\_\mathrm{UL}\_\mathrm{DPCCH}\left(i\right)}{\mathrm{\κ}+\mathrm{\β}\·\mathrm{Throughput}+\underset{j=1}{\overset{M}{\mathrm{\Σ}}}{\mathrm{\λ}}_j\·{\mathrm{CQI}}_j+\mathrm{\μ}\·\mathrm{SIR}\_\mathrm{UL}\_\mathrm{DPCCH}}\·100\%$ (formula 7)

Wherein P_CellChange is the possibility (can be greater than 100%, the trend of expression cell change is very obvious) that terminal 51 is served the HS-DSCH cell change; Power_F_DPCCH is the transmitting power that sends to the part Dedicated Control Channel (F-DPCH) of each terminal 51; TPC_UL_DPCCH is power control (TPC) order (getting "+1 " and " 1 " two values, expression increase/minimizing transmitting power) on the up Dedicated Control Channel; Throughput is the throughput of terminal 51; CQI is the channel quality indication of terminal 51; SIR_UL_DPCCH is the carrier/interface ratio of up Dedicated Control Channel; α, N, k, β, λ, μ are fixed constant.

Step S240, the base station 11 of network side or evolution base station 42 are according to the data that will send to terminal 51, and the channel parameter of terminal 51, terminal 51 are carried out the possibility of high speed descending sharing channel change and handle, produce the Flow Control capability distribution frame, carry out flow control.

As Fig. 8 and shown in Figure 9, step S240 comprises following 3 steps:

Step S241, system is calculated the current behaviour in service of each employed buffering area of priority query.

Step S242, whether the current height of buffering area of judging each priority query is between last Lower Threshold, if between last Lower Threshold, then whole sub-process finishes; Otherwise forward step S243 to.

Step S243, the base station 11 of network side or evolution base station 42 utilize the throughput and the maximum protocol Data Unit size of bandwidth reserved and terminal 51, and terminal 51 changes possibility, produce the Flow Control amount that network side distributes for terminal 51, the Flow Control that promptly produces the Flow Control capability distribution frame is distributed amount.

Algorithm is as follows:

$\mathrm{Credit}\left(m\right)=\left\{\begin{array}{cc}\left(\mathrm{int}\right)(\frac{\mathrm{BW}\left(m\right)}{\mathrm{MaximumPDULength}\left(m\right)}\·\frac{1}{1+P\_\mathrm{CellChange}\left(m\right)}),& \mathrm{If\; TRUE},\\ \left(\mathrm{int}\right)(\frac{\mathrm{MAX}(\mathrm{BW}\left(m\right),\mathrm{Throughput}\left(m\right))}{\mathrm{MaximumPDULength}\left(m\right)}\·\frac{1}{1+P\_\mathrm{CellChange}\left(m\right)}),& \mathrm{else}\end{array}\right.$ (formula 8)

Wherein, " TRUE " refers to that the business of this terminal 51 is real time business, and " else " represents that the business of this terminal 51 does not have real-time requirement.

The Flow Control amount that Credit (m) distributes for m terminal 51 for network side; (int) expression rounding operation; The implication cotype (6) of BW (m), promptly network side (base station 11 or evolution base station 42 and IAD 41) is given the bandwidth that m terminal 51 reserved and distributed; Throughput (m) is the throughput of m terminal 51; MaximumPDULength (m) is protocol Data Unit (PDU) size of the maximum of m terminal 51 business of being applied for; MAX is for getting maximum operation; P_CellChange is the possibility that terminal 51 is served the HS-DSCH cell change, and wherein, the calculating of P_CellChange as the formula (7).

Then, produce other parameters of Flow Control capability distribution frame,, carry out flow control as parameters such as Flow Control capability distribution repetition period, the term of validity, PDU length.

Producing other parameters of Flow Control capability distribution frame, is existing known technology, and these parameters do not have special requirement, and not too close with relation of the present invention, describes in detail no longer one by one in embodiments of the present invention.

Step S300 carries out packet scheduling and resource allocation on the base station 11 of network side or evolution base station 42.

As shown in figure 10, this step comprises following 3 sub-steps:

Step S310, the medium access control-high speed sublayer (MAC-hs sublayer) of network side obtains data such as channel quality from physical layer.

Step S320, estimates the comprehensive priority of each terminal 51 at the time that the packet scheduler of the medium access control-high speed sublayer of network side has been waited for since the last scheduled according to terminal 51, and channel conditions and throughput estimated value.

Packet scheduler is at t sometime, the time of having waited for since the last scheduled according to terminal 51 is at this channel conditions constantly, to the throughput estimated value of this user terminal 51 constantly, and service priority, calculate comprehensive priority in this terminal 51 constantly.

Preferably, computational methods are as follows:

$\mathrm{Priorit}{y}_m\left(t\right)=({\mathrm{\β}}_m\·T_m\left(t\right)+\frac{1+\mathrm{ChCon}{d}_m\left(t\right)}{1+{\mathrm{Th}}_m\left(t\right)})\·\mathrm{Traf}{\mathrm{Pri}}_m$ (formula 9)

Wherein, Priority _m(t) be the t comprehensive priority of m terminal 51 constantly.β _mBe the constant relevant with business.T _m(t) be t time of having waited for since the last scheduled of m terminal 51 constantly.ChCond _m(t) be the t channel conditions of user m constantly, as the formula (10); Th _m(t) be in the t throughput estimated value of user m constantly.Traf Pri _mService priority for user m.

ChCond _m(t)=CQI _m(t) (formula 10)

Formula (10) is the simplification of formula (5), i.e. M=1, and β and r get " 0 ".

Wherein, CQI is the channel quality indication of terminal 51.

Step S330, the packet scheduler of medium access control-high speed sublayer select to have peaked preceding Q the terminal 51 of comprehensive priority, finish packet scheduling, carry out resource allocation at 51 at terminal then.

Wherein, Q is the number of users of scheduling in a Transmission Time Interval (TTI).

The packet scheduler of medium access control-high speed sublayer selects to have peaked preceding Q the terminal 51 of comprehensive priority, finish packet scheduling, carry out resource allocation at 51 at terminal then, promptly distribute code channel, power, transmission bandwidth or the like, just use to which terminal 51 these resources.These all are existing known technologies, thereby describe in detail no longer one by one in the present invention.。

After said method, the base station of network side or evolution base station can have the service quality (QoS) that very high probability guarantees real time business, can make system obtain higher throughput simultaneously.Wherein, as shown in figure 11, for utilizing resource management system of the present invention and method the QoS of customer (QoS) of 128kbps video flowing is guaranteed situation simulation result figure, as can be seen from the figure, QoS of customer is well guaranteed.

More than describe embodiments of the invention in detail, but the example of this visualization of just lifting for the ease of understanding should not be considered to be limitation of the scope of the invention.Equally, according to the description of technical scheme of the present invention and preferred embodiment thereof, can make various possible being equal to and change or replacement, and all these changes or replacement all should belong to the protection range of claim of the present invention.

Claims (12)

1. the resource management system in the mobile communications network comprises terminal and network equipment, it is characterized in that, comprise in the described network equipment reserving distributing bandwidth unit, and flow controlling unit, packet scheduling and resource allocation unit, wherein:

Described reservation distributes bandwidth unit, is used for reservation service bandwidth parameter and network side available bandwidth according to terminal, for described terminal is carried out resource reservation and allocated bandwidth;

Described flow controlling unit is used for according to the data that will send to terminal, and the channel parameter of terminal, terminal is carried out the possibility of high speed descending sharing channel change and predicts, produces the Flow Control capability distribution frame, carries out flow control;

Described packet scheduling and resource allocation unit are used to carry out packet scheduling and resource allocation.

2. the resource management system in the mobile communications network according to claim 1 is characterized in that, described flow controlling unit comprises the transmission data capture unit, the channel parameter acquiring unit, and bandwidth change predicting unit, the capability distribution frame generation unit, wherein:

Described transmission data capture unit is used to obtain to send to the data of terminal;

Described channel parameter acquiring unit is used to obtain the channel parameter of terminal;

Described bandwidth change predicting unit is used for the channel parameter data according to the terminal that obtains, and carries out the base station or the evolution base station bandwidth change prediction of network side, obtains the possibility that terminal is carried out the high speed descending sharing channel change;

The capability distribution frame generation unit is used for according to will sending to the data of terminal, and according to the channel parameter of terminal, terminal is carried out the possibility of high speed descending sharing channel change and handle, and produces the Flow Control capability distribution frame, carries out flow control.

3. the resource management system in the mobile communications network according to claim 2 is characterized in that, described capability distribution frame generation unit comprises system calculation unit, judging unit, and the amount allocation units, wherein:

Described system is calculated the unit, is used to add up and/or calculate the current behaviour in service of each employed buffering area of priority query;

Described judging unit, whether the current height of buffering area that is used to judge each priority query is between last Lower Threshold;

Described amount allocation units are used to utilize the throughput and the maximum protocol Data Unit size of bandwidth reserved and terminal, and terminal changes possibility, produce the Flow Control amount that network side is given terminal distribution.

4. according to the resource management system in each described mobile communications network of claim 1 to 3, it is characterized in that described packet scheduling and resource allocation unit, comprise that channel data obtains the unit, the comprehensive priority evaluation unit, the selection scheduling allocation units, wherein:

Channel data obtains the unit, is used for obtaining channel quality data from the base station or the evolution base station physical layer of network side;

The comprehensive priority evaluation unit is used for time of having waited for since the last scheduled according to terminal, and channel conditions and throughput estimated value, estimates the comprehensive priority of each terminal;

The selection scheduling allocation units select to have the peaked one or more terminals of comprehensive priority, finish packet scheduling, carry out resource allocation at terminal room then.

5. the resource management system in the mobile communications network according to claim 4 is characterized in that:

The reservation service bandwidth parameter of described terminal comprises and carries out professional needed assurance bit rate, professional priority, the sum of the user terminal of access network side;

The channel parameter of described terminal comprises the carrier/interface ratio, the power control command on the up Dedicated Control Channel of the channel quality indication of throughput, the terminal of terminal, up Dedicated Control Channel, at the transmitting power of the part Dedicated Control Channel of this terminal.

6. the resource management system in the mobile communications network according to claim 5 is characterized in that, described resource is that the high-speed packet of mobile communications network inserts the resource that the HSPA/ high-speed packet inserts support real time business among the evolution HSPA+.

7. the resource management system in the mobile communications network according to claim 6 is characterized in that, described communication network is the WCDMA communication network, perhaps TD-SCDMA communication network, perhaps CDMA2000 communication network.

8. the method for managing resource in the mobile communications network is characterized in that, comprises the following steps:

Steps A according to the reservation service bandwidth parameter and the network side available bandwidth of terminal, is that terminal is carried out resource reservation and allocated bandwidth at network side;

Step B, according to will sending to the data of terminal, and the channel parameter of terminal carries out the possibility of high speed descending sharing channel change and predicts to terminal at network side, the base station of network side or evolution base station produce the Flow Control capability distribution frame, carry out flow control;

Step C carries out packet scheduling and resource allocation at network side.

9. the method for managing resource in the mobile communications network according to claim 8 is characterized in that described step B specifically comprises the following steps:

Step B1, network side obtain to send to the data of terminal from interface;

Step B2, network side obtain the channel conditions parameter of terminal from packet scheduler, physical layer;

Step B3 changes prediction according to the data of the channel parameter of the terminal that is obtained, and obtains the possibility that terminal is carried out the high speed descending sharing channel change;

Step B4, network side is according to the data that will send to terminal, and the channel parameter of terminal, terminal is carried out the possibility of high speed descending sharing channel change and handles, and produces the Flow Control capability distribution frame, carries out flow control.

10. the method for managing resource in the mobile communications network according to claim 9 is characterized in that described step B4 specifically comprises the following steps:

Step B41, system is calculated the current behaviour in service of each employed buffering area of priority query;

Step B42, whether the current height of buffering area of judging each priority query is between last Lower Threshold, if between last Lower Threshold, then whole sub-process finishes; Otherwise forward step B43 to;

Step B43, network side utilize the throughput and the maximum protocol Data Unit size of bandwidth reserved and terminal, and terminal changes possibility, produce the Flow Control amount that network side is given terminal distribution.

11. the method for managing resource to 10 each described mobile communications networks is characterized in that described step C specifically comprises the following steps: according to Claim 8

Step C1, the medium access control-high speed sublayer of network side obtains channel quality data from physical layer;

Step C2, estimates the comprehensive priority of each terminal at the time that the packet scheduler of medium access control-high speed sublayer has been waited for since the last scheduled according to terminal, and channel conditions and throughput estimated value;

Step C3, the packet scheduler of medium access control-high speed sublayer select to have peaked preceding Q the terminal of comprehensive priority, finish packet scheduling, carry out resource allocation at terminal room then;

Wherein, the number of users of Q in a Transmission Time Interval, dispatching.

12. the method for managing resource in the mobile communications network according to claim 11 is characterized in that:

The reservation service bandwidth parameter of described terminal comprises and carries out professional needed assurance bit rate, professional priority, the sum of the user terminal of access network side;

The channel parameter of described terminal comprises the carrier/interface ratio, the power control command on the up Dedicated Control Channel of the channel quality indication of throughput, the terminal of terminal, up Dedicated Control Channel, at the transmitting power of the part Dedicated Control Channel of this terminal.

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