CN101778114B - Method for multi-channel parallel transmission of streaming media services on basis of load balance - Google Patents

Method for multi-channel parallel transmission of streaming media services on basis of load balance Download PDF

Info

Publication number
CN101778114B
CN101778114B CN2010101041123A CN201010104112A CN101778114B CN 101778114 B CN101778114 B CN 101778114B CN 2010101041123 A CN2010101041123 A CN 2010101041123A CN 201010104112 A CN201010104112 A CN 201010104112A CN 101778114 B CN101778114 B CN 101778114B
Authority
CN
China
Prior art keywords
network
load
candidate
intensity
resource management
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN2010101041123A
Other languages
Chinese (zh)
Other versions
CN101778114A (en
Inventor
杨勇
许国法
蔡国炎
夏大强
王孟孺
陈宏�
陈晓东
周建海
陈师亮
潘析非
朱军
宋旸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Radio and Television Group of Zhejiang
Original Assignee
Radio and Television Group of Zhejiang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Radio and Television Group of Zhejiang filed Critical Radio and Television Group of Zhejiang
Priority to CN2010101041123A priority Critical patent/CN101778114B/en
Publication of CN101778114A publication Critical patent/CN101778114A/en
Application granted granted Critical
Publication of CN101778114B publication Critical patent/CN101778114B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

The invention relates to a method for the multi-channel parallel transmission of streaming media services on the basis of load balance, so as to solve the problem that the multi-channel parallel transmission thereof is limited by bandwidth or transmission rate in the prior art. The method of the invention comprises the following steps: selecting candidate sets; selecting active sets; distributing the traffic of streaming media services; and processing when the network is overloaded, wherein the candidate sets are subject to an SNR (signal noise ratio) constraint and a load constraint; and according to the type and number of the networks that a multi-mode terminal can access to, the networks having lower load intensity and the corresponding type and number are located in a candidate network list by a JMRRM (joint multi-radio resource management) module, so as to constitute the active sets, i.e., to select the active sets. By taking the quality and congestion level of the wireless network into overall consideration for the selection of the access network, the method of the invention guarantees that the streaming media services can access to the receiving terminal effectively and rapidly; and by introducing the candidate sets and the active sets, the load balance can be rapidly achieved by the two sets when the network is overloaded, thereby avoiding the congestion.

Description

A kind of streaming media service multidiameter delay transmission method based on load balancing
Technical field
The invention belongs to streaming media service transmission field, it is related to a kind of streaming media service to the efficient quick transmission method of server, multiple different types of wireless networks and the reasonable distribution flow in each network are specifically selected according to the signal to noise ratio and load state of the link of network, transmission stream media service, can carry out the switching of network and redistributing for flow in transmitting procedure according to the Congestion Level SPCC of network in a parallel fashion. 
Background technology
With mobile communication and the fast development of broadband wireless access, the development trend of future mobile communications has no longer been that certain technology occupies absolute advantage, but a variety of wireless access technologys coexist, are complementary to one another there is provided diversified access service, realize seamless switching., it is necessary to carry out joint resource management to multiple different wireless networks under this many wireless access environment, so as to the distribution of Reasonable adjustment data flow, multiple business demand and the dynamic change of quality of wireless network are adapted to.United resource management can be just realized by combining many RRMs (JointMulti-Radio Resource Management, JMRRM) system, all utilizable Radio Resources are maximally utilised. 
JMRRM systems are the functional entitys of a control plane, and main function is wireless access notice, wireless access discovery, wireless access selection, execution load balancing, the switching between multiple networks between the reasonable distribution and access network of progress flow.End side and network side all possess many radio resource management modules of joint, and the JMRRM modules of end side and the JMRRM modules of network side can be in communication with each other. 
It is that incoming stream is selected based on radio link quality mostly in existing wireless access selection algorithm, its purpose is to obtain the wireless path with optimal wireless link condition, it is hereby achieved that high-quality communication.But the selection algorithm does not account for the Congestion Level SPCC of wireless access, the overload of network may be caused.Therefore, the selection of wireless access should consider radio link quality and Congestion Level SPCC simultaneously, so be obtained with preferable effect. 
Meanwhile, the appearance of multi-module radio terminal promotes single terminal equipment to be set up simultaneously with multiple network or multiple operators and is connected, concomitantly transmits data.Bandwidth limitations are solved using multimode terminal to a certain extent to the high-quality streaming media service of server parallel transmission, but the problem of also having triggered new simultaneously, for example under the finite bandwidth that each operator distributes, the data transmission rate on each bar link how is adjusted, data is reached server with most fast speed. 
The content of the invention
It is an object of the invention to provide a kind of streaming media service multidiameter delay transmission method based on load balancing.This method can select multiple available networks according to link-quality and load state, and reasonably distribute streaming media service flow in the multiple networks selected so that streaming media service can be efficiently and rapidly sent to destination. 
The inventive method includes the processing when selection of Candidate Set, the selection of activation collection, the distribution of streaming media service flow and network over loading. 
The inventive method is concretely comprised the following steps： 
Step (1) chooses Candidate Set.Described Candidate Set refers to all available wireless network set of terminal；Combine many wireless resource managements by wireless access announcement function, detect all wireless networks at terminal place, candidate network is selected in all wireless networks according to the signal to noise ratio and Congestion Level SPCC of Radio Link, specific method is： 
A, the JMRRM modules of network side obtain all N detectedtotalThe signal to noise ratio (SNR) of individual wireless network, if SNR is more than i-th (1≤i≤Ntotal) individual network settings signal-noise ratio threshold SNRI, th, then the wireless network can enter Candidate Set.According to Shannon theorems, the signal-noise ratio threshold of i-th of network need to meet Ri=Wilog2(1+SNRI, th), so
Figure GSA00000019067200021
Wherein WiRefer to the bandwidth of i-th of network, Ri=Rmin/Nmod, RminRepresent the minimum-rate needed for streaming media service transmission, NmodThe quantity for the wireless network module that multimode terminal has is represented, i.e., passes through N simultaneouslymodIndividual network carries out the transmission of streaming media service. 
B, except ensure Radio Link quality in addition to, also need to determine Candidate Set according to the Congestion Level SPCC of network, Congestion Level SPCC is described by load restraint, and load restraint is that load restraint is expressed as follows in order to ensure that the new access for reaching business does not interfere with the business existed in the network： 
Figure DEST_PATH_IMAGE002
Wherein,
Figure 201443DEST_PATH_IMAGE002
Intensity of load current in some candidate network is represented, intensity of load represents the ratio of the bandwidth that all service traffics take in network and network total bandwidth,
Figure DEST_PATH_IMAGE004
Expression speed is Cinc=Cnew/NmodBusiness Stream access the increased intensity of load of candidate network institute, CnewRepresent the Mean Speed of new business；
Figure 387385DEST_PATH_IMAGE002
Represent the intensity of load thresholding of the candidate network, the i.e. patient loading level of candidate network institute. 
In different wireless networks, increased intensity of load
Figure 398067DEST_PATH_IMAGE004
Respectively： 
1. in W-CDMA networks,
Figure GSA00000019067200022
Wherein, g represents the interference factor of other cells, the ratio for referring to inter-cell interference and always disturbing；D represents the spreading rate of W-CDMA system；bincRepresent the bit signal to noise ratio needed for the business. 
2. in WiMaxTMIn network,
Figure 366023DEST_PATH_IMAGE006
.Wherein, what M was represented is the quantity of subchannel；S represents the OFDMA symbol number that each frame is included；K represents the sub-carrier number of every sub-channels；T represents the duration of a frame. 
3. in Wi-FiTMIn network, in a period of time length T of Monitoring DataoIt is interior, the shared when a length of T of data measured transmissions, then the intensity of load of the candidate network be
Figure 462155DEST_PATH_IMAGE008
, increased intensity of load is
Figure 173759DEST_PATH_IMAGE010
, the new business that t represents accesses the incrementss of data transfer duration after the candidate network. 
In different wireless networks, intensity of load thresholding
Figure 445471DEST_PATH_IMAGE012
Respectively： 
4. in W-CDMA networks, using dynamic mode distribution bandwidth, in the case where intensity of load is relatively light, it can guarantee that the higher bandwidth demand of user, in the case where intensity of load is heavier, the basic bandwidth demand of user can only be ensured, so intensity of load thresholding takes 0.75~0.85； 
5. in WiMaxTMIn network, the distribution bandwidth by the way of on demand, the bandwidth needed for user's request allows access if the bandwidth demand can be satisfied；Refuse access if the bandwidth demand can not be satisfied, so intensity of load thresholding takes 0.85~0.95； 
6. in Wi-FiTMIn network, the distribution bandwidth by the way of competition obtains bandwidth by vying each other between user, intensity of load thresholding takes 0.65~0.75. 
The network for meeting the constraint of step a signal to noise ratios and step b load restraints constitutes Candidate Set； 
Step (2) chooses activation collection.Described activation collection refers to that current time is used for the network that streaming media service is transmitted.JMRRM chooses network according to the intensity of load of wireless network in Candidate Set and constitutes activation collection, the transmission for streaming media service.Specifically method is： 
The JMRRM modules of network side are that terminal maintains type and the current intensity of load of candidate network comprising candidate network in a candidate network table, candidate network table
Figure 584329DEST_PATH_IMAGE014
.The type and quantity for the network that the JMRRM modules of network side have access to according to multimode terminal, in candidate network table for the type NetFind respective numbers the network with smaller intensity of load, constitute activation collection, and it will activate and collect the JMRRM modules for being sent to end side, terminal initiates access request according to activation collection. 
Step (3) distributes streaming media service flow.For each network reasonable distribution service traffics of activation collection, streaming media service is set to carry out high efficiency of transmission in a parallel fashion.The JMRRM modules of network side are to this NactiveIndividual network carries out assignment of traffic, and specific method is： 
C, setting assignment of traffic scheme, including
I. the flow sum of activation network is metNactiveRepresent the network number that activation is concentrated, xi(1≤i≤Nactive) represent flow of the streaming media service in i-th of network. 
If II. i-th of network is W-CDMA,
Figure GSA00000019067200042
If i-th of network is WiMaxTM,； 
If i-th of network is Wi-FiTM,
Figure 417472DEST_PATH_IMAGE018
； 
(1≤i≤Nactive) representing that i-th of network adds intensity of load total after new business, it is xiFunction. 
Figure DEST_PATH_IMAGE022
Represent the current intensity of load of i-th of network： 
III. exist
Figure GSA00000019067200043
With
Figure 561276DEST_PATH_IMAGE002
(1≤i≤Nactive) constraints under, calculate meet
Figure GSA00000019067200044
Xi.Wherein
Figure 101979DEST_PATH_IMAGE004
Represent the thresholding of the intensity of load of i-th of network；wiFor the weight of various networks, preference of the reflection user to network.P is the power of intensity of load, embodies the fairness of load balancing. 
D, the JMRRM modules of network side send the obtained assignment of traffic schemes of step c to step e to the JMRRM modules of end side, and terminal carries out multidiameter delay transmission according to each network allocation service traffics of this scheme to activation collection. 
E, the JMRRM modules of network side update the load state information of activation collection network. 
Step (4) is transmitted until being transmitted if network does not overload according to the assignment of traffic scheme in step (3)；If network over loading, it is handled as follows： 
F, the JMRRM modules of network side notify that the JMRRM module activations of end side concentrate the network overloaded. 
G, renewal Candidate Set, are again the candidate network table under one current network conditions of terminal maintenance according to the choosing method of the Candidate Set in step (1), and search the candidate network of the network same type with overloading in the table.If searched less than such network, the JMRRM modules of end side are notified, and close such mixed-media network modules mixed-media；If the number for searching such candidate network is less than the number of the network overloaded, the information of the all-network searched is sent to end side JMRRM modules；If the number for searching such candidate network is identical with the number of the network overloaded, these network informations are sent to end side JMRRM modules；If the number for searching such candidate network is more than the number of the network overloaded, the information of the network with smaller intensity of load of wherein respective numbers is sent to end side JMRRM modules. 
The information that h, end side JMRRM modules are sended over according to network side JMRRM modules carries out the switching of network：The connection with overloaded network is released, and accesses the network reselected in step g；Network side JMRRM modules update activation collection simultaneously. 
I, the JMRRM modules of network side carry out assignment of traffic to the network that activation is concentrated again according to the method in step (3), and scheme are sent to the JMRRM modules of end side. 
The inventive method is had the advantage that： 
(1) selection of the present invention to access network has considered the quality and Congestion Level SPCC of wireless network, to ensure that streaming media service efficiently and rapidly reaches receiving terminal. 
(2) Candidate Set is introduced in the present invention and activation collects, in the case of network over loading load balancing can be rapidly carried out using two set, it is to avoid congestion. 
(3) situation that the present invention is limited for the network bandwidth, streaming media business takes the method that multidiameter delay is transmitted, and carries out dynamic assignment of traffic according to the load condition of each network time-varying. 
Brief description of the drawings
Fig. 1 is the schematic diagram of Candidate Set and activation collection； 
Fig. 2 is the streaming media service transmitting procedure basic flow sheet based on load balancing. 
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described. 
The present invention is applied to the efficiently quick transmitting scene of streaming media service.Such as user terminal has substantial amounts of streaming media service to need quickly to transmit to destination server, according to the proposed method, the many radio resource management modules of joint of network side are that user terminal chooses Candidate Set network, and the network type and quantity that can be accessed according to user terminal are that user terminal chooses suitable activation collection network, user terminal reasonable distribution service traffics in each activation collection network, realize the multidiameter delay transmission of Streaming Media. 
Described network type refers to the network based on different radio access technologies, such as W-CDMA, WiMAXTMAnd Wi-FiTM, the network that user terminal has access to can be that same type of network can also be different types of network. 
Fig. 1 is the schematic diagram of Candidate Set and activation collection.End side has W-CDMA, WiMAXTMAnd Wi-Fi TM3 radio access modules, a radio access module a certain moment only has access a wireless network.JMRRM detects that all wireless networks at terminal place have 8, wherein there is 4 Wi-Fi by wireless access announcement functionTMWireless access network, 3 WiMAXTMWireless access network and 1 W-CDMA wireless access network. 
Fig. 2 is the streaming media service transmitting procedure basic flow sheet based on load balancing. 
The method of the present invention is illustrated with reference to Fig. 1 and Fig. 2. 
Step 1 chooses Candidate Set：Candidate Set is chosen according to the quality and Congestion Level SPCC of wireless network. 
1) the JMRRM modules of network side detect the signal to noise ratio (SNR) of 8 wireless networks in Fig. 1, if SNR is more than the signal-noise ratio threshold SNR of i-th (1≤i≤8) individual network settingsI, th, then i-th of network can enter Candidate Set.According to Shannon theorems, the signal-noise ratio threshold of i-th of network need to meet Ri=Wilog2(1+SNRI, th), so
Figure GSA00000019067200061
Wherein WiRefer to the bandwidth of i-th of network, Ri=Rmin/ 3, RminRepresent the minimum-rate needed for streaming media service transmission. 
2) the JMRRM modules of network side detect the Congestion Level SPCC of 8 wireless networks in Fig. 1.Congestion Level SPCC can be described by load restraint, and load restraint is that load restraint is expressed as follows in order to ensure newly to reach that the access of business does not interfere with the business existed in the network： 
Wherein
Figure 479871DEST_PATH_IMAGE008
Intensity of load current in some candidate network is represented, described intensity of load represents the ratio of the bandwidth that all service traffics take in network and network total bandwidth.   
Figure 549458DEST_PATH_IMAGE010
Expression speed is Cinc=Cnew/NmodThe increased intensity of load of service access candidate network institute, CnewRepresent the Mean Speed of new business；   Represent the intensity of load thresholding of the candidate network, the i.e. patient loading level of candidate network institute. 
In different wireless networks, increased intensity of load
Figure 357194DEST_PATH_IMAGE014
It is different： 
In W-CDMA networks,
Figure GSA00000019067200062
Wherein g represents the interference factor of other cells, the ratio for referring to inter-cell interference and always disturbing；W represents the spreading rate of W-CDMA system；bincRepresent the bit signal to noise ratio needed for the business. 
In WiMaxTMIn network,
Figure 589592DEST_PATH_IMAGE016
；What wherein M was represented is the quantity of subchannel；S represents the OFDMA symbol number that each frame is included；K represents the sub-carrier number of every sub-channels；T represents the duration of a frame. 
In Wi-FiTMIn network, T is usedoA period of time length of Monitoring Data is represented, in ToIn duration, when a length of T shared by data transfers, then it is assumed that the intensity of load of the candidate network is
Figure 361239DEST_PATH_IMAGE018
, increased intensity of load is
Figure 311878DEST_PATH_IMAGE020
, the new business that t represents accesses the incrementss of data transfer duration after the candidate network. 
In different wireless networks, the thresholding of intensity of load
Figure 194383DEST_PATH_IMAGE022
Also it is different： 
In W-CDMA networks, using dynamic mode distribution bandwidth, in the case where intensity of load is relatively light, it can guarantee that the higher bandwidth demand of user, in the case where intensity of load is heavier, the basic bandwidth demand of user can only be ensured, so moderate intensity of load thresholding can be chosen, in the present embodiment, the intensity of load thresholding of W-CDMA networks is set to 0.8； 
In WiMaxTMIn network, the distribution bandwidth by the way of on demand, user asks certain bandwidth, allow access if the bandwidth demand can be satisfied, refuse access if the bandwidth demand can not be satisfied, so larger intensity of load thresholding can be chosen, in the present embodiment, WiMaxTMThe intensity of load thresholding of network is set to 0.9； 
In Wi-FiTMIn network, the distribution bandwidth by the way of competition obtains bandwidth between user, so less intensity of load thresholding, in the present embodiment, Wi-Fi can be chosen by vying each otherTMThe intensity of load thresholding of network is set to 0.7. 
Required according to the selection of above Candidate Set, having 6 wireless networks in 8 all wireless access networks enters Candidate Set, as shown in Fig. 2 wherein the 1st WiMaxTMWith the 4th Wi-FiTMThe selection requirement of above-mentioned Candidate Set is not met, therefore does not enter into Candidate Set. 
Step 2 chooses activation collection：The JMRRM modules of network side are that terminal maintains type and the current intensity of load of candidate network comprising candidate network in an above-mentioned candidate network table, table.Multimode terminal has access to 1 Wi-Fi in fig. 2TMNetwork, 1 WiMaxTMNetwork and 1 W-CDMA network, therefore the JMRRM modules of network side will search the Wi-Fi with minimum load intensity respectively in candidate network tableTM, WiMAXTMWith W-CDMA access networks, the 3rd WiMAX in activation collection, such as Fig. 2 is constitutedTM, the 1st W-CDMA and the 1st Wi-FiTMConstitute activation collection.The JMRRM modules of network side are sent to the JMRRM modules of end side, the Wi-Fi that terminal is concentrated to activation respectively by collection is activatedTM, WiMAXTMAccess request is initiated with W-CDMA networks. 
Step 3 assignment of traffic：For each network reasonable distribution service traffics of activation collection, streaming media service is set to carry out high efficiency of transmission in a parallel fashion.The JMRRM modules of network side carry out assignment of traffic according to activation collection information to 3 above-mentioned networks, and specific algorithm is： 
1) x is used1、x2And x3Represent that W-CDMA, WiMAX are concentrated in activation respectivelyTMAnd Wi-FiTMThe flow that network allocation is arrived, then the flow sum of all activated network meet x1+x2+x3≥Cnew。 
2) use
Figure 958257DEST_PATH_IMAGE026
Represent that each network adds intensity of load total after new business respectively, it is x1、x2And x3Function,
Figure 396191DEST_PATH_IMAGE028
The current intensity of load of i-th of network is represented,
Figure 82388DEST_PATH_IMAGE030
Represent the thresholding of the intensity of load of i-th of network： 
1st network is W-CDMA,
Figure GSA00000019067200081
Figure 289378DEST_PATH_IMAGE032
； 
2nd network is WiMaxTM,； 
3rd network is Wi-FiTM,
Figure 328058DEST_PATH_IMAGE036
, wherein t (x3) expression speed be x3The service access candidate network after data transfer duration incrementss,。 
3) in x1+x2+x3≥CnewWith
Figure 348284DEST_PATH_IMAGE040
Under the constraints of (i=1,2,3), calculate and meet
Figure GSA00000019067200082
Each network allocation flow x1、x2And x3.Wherein wi(1≤i≤3) are the weight of 3 kinds of networks, reflection user to the preferences of this 3 kinds of networks, when user to 3 kinds of networks without preference when, optional w1=w2=w3=1/3；W-CDMA, WiMAX are followed successively by when the preference of user is descendingTMAnd Wi-FiTMWhen, optional w1＜ w2＜ w3, and meet w1+w2+w3=1.P is the power of intensity of load, embodies the fairness of load balancing, can be set to 2. 
Step 4 business is transmitted：The JMRRM modules of network side send the assignment of traffic scheme that above-mentioned algorithm is obtained to the JMRRM modules of end side, and terminal carries out multidiameter delay transmission according to 3 network allocation service traffics of this scheme to activation collection. 
If the access due to other users in transmitting procedure causes network over loading, for example, the Wi-Fi that above-mentioned activation is concentratedTMThe service traffics of access are excessive, and intensity of load has exceeded 0.7.In order to ensure the high efficiency of streaming media service transmission, it is necessary in time by the Wi-FiTMWork flow in network moves to the relatively low candidate network of intensity of load.Processing method during network over loading is： 
1) the JMRRM modules of network side notify the Wi-Fi that the JMRRM module activations of end side are concentratedTMNetwork overloads. 
2) Candidate Set is updated, is again the candidate network table under one current network conditions of terminal maintenance, and search the Wi-Fi of other candidates in the table according to the method for step 1TMNetwork.If searching the Wi-Fi less than candidateTMNetwork, then notify the JMRRM modules of end side, closes Wi-FiTMThe module of network；If the Wi-Fi of candidateTMNetwork has and only 1, then sends the information of the network to end side JMRRM modules；If the Wi-Fi of candidateTMNetwork more than one, then sent the information of the minimum network of wherein intensity of load to end side JMRRM modules by the method for step 2. 
3) information that JMRRM modules in end side are sended over according to network side JMRRM modules carries out the switching of network：Release and overload Wi-FiTMThe Wi-Fi reselected in the connection of network, and access 2)TMNetwork；Network side JMRRM modules update activation collection simultaneously. 
4) the JMRRM modules of network side carry out assignment of traffic to the network that activation is concentrated again according to the method for step 3, and scheme is sent to the JMRRM modules of end side. 
5) transmission stream media service is continued according to new assignment of traffic scheme.If occurring in transmitting procedure without network over loading phenomenon, continue transmission stream media service until being transmitted. 

Claims (1)

1. a kind of streaming media service multidiameter delay transmission method based on load balancing, it is characterised in that this method is comprised the concrete steps that：
Step (1) chooses Candidate Set, and described Candidate Set refers to all available wireless network set of terminal；The many wireless resource managements of joint of network side detect all wireless networks at terminal place, candidate network are selected in all wireless networks according to the signal to noise ratio and Congestion Level SPCC of Radio Link, specific method is by wireless access announcement function：
A, many radio resource management modules of joint of network side obtain all N detectedtotalThe signal to noise ratio snr of individual wireless network, if SNR is more than the signal-noise ratio threshold SNR of i-th of network settingsI, th, then the wireless network enter Candidate Set, 1≤i≤Ntotal,
Figure FSB00000827851300011
Wherein WiRefer to the bandwidth of i-th of network, Ri=Rmin/Nmod, RminRepresent the minimum-rate needed for streaming media service transmission, NmodRepresent the quantity for the wireless network module that multimode terminal has, you can to pass through N simultaneouslymodIndividual network carries out the transmission of streaming media service；
B, the access for newly reaching business by load restraint guarantee do not interfere with the business existed in the network, and load restraint is expressed as
Figure 4
；Wherein,
Figure 961461DEST_PATH_IMAGE002
Intensity of load current in some candidate network is represented, intensity of load represents the ratio of the bandwidth that all service traffics take in network and network total bandwidth,Expression speed is Cinc=Cnew/NmodBusiness Stream access the increased intensity of load of candidate network institute, CnewRepresent the Mean Speed of new business； 
Figure 514146DEST_PATH_IMAGE006
Represent the intensity of load thresholding of the candidate network, the i.e. patient loading level of candidate network institute；
Increased intensity of load in different wireless networks
Figure 763862DEST_PATH_IMAGE008
Respectively：
1. in W-CDMA networks,
Figure FSB00000827851300012
Wherein, g represents the interference factor of other cells, the ratio for referring to inter-cell interference and always disturbing；D represents the spreading rate of W-CDMA system；bincRepresent the bit signal to noise ratio needed for the business；
2. in WiMaXTMIn network,
Figure 749136DEST_PATH_IMAGE010
；Wherein, what M was represented is the quantity of subchannel；S represents the OFDMA symbol number that each frame is included；K represents the sub-carrier number of every sub-channels；T represents the duration of a frame；
3. in Wi-FiTMIn network, in a period of time length T of Monitoring DataoIt is interior, the shared when a length of T of data measured transmissions, then the intensity of load of the candidate network be
Figure 58894DEST_PATH_IMAGE012
, increased intensity of load is
Figure 129618DEST_PATH_IMAGE014
, the new business that t represents accesses the incrementss of data transfer duration after the candidate network；
Intensity of load thresholding in different wireless networks
Figure 838817DEST_PATH_IMAGE016
Respectively：
4. in W-CDMA networks, the intensity of load thresholding of selection
Figure 678597DEST_PATH_IMAGE016
For 0.75~0.85；
5. in WiMaxTMIn network, the intensity of load thresholding of selection
Figure 159257DEST_PATH_IMAGE016
For 0.85~0.95；
6. in Wi-FiTMIn network, the intensity of load thresholding of selectionFor 0.65~0.75；The network for meeting the constraint of step a signal to noise ratios and step b load restraints constitutes Candidate Set；
Step (2) chooses activation collection, and described activation collection refers to that current time is used for the network that streaming media service is transmitted, and choosing network according to the intensity of load of wireless network in Candidate Set constitutes activation collection, and for the transmission of streaming media service, specific method is：
The many radio resource management modules of joint of network side are that terminal maintains type and the current intensity of load of candidate network comprising candidate network in a candidate network table, candidate network table
Figure 308796DEST_PATH_IMAGE018
The type and quantity for the network that many radio resource management modules of joint of network side have access to according to multimode terminal, in candidate network table for the type NetFind respective numbers the network with smaller intensity of load, constitute activation collection, and it will activate and collect many radio resource management modules of joint for being sent to end side, terminal initiates access request according to activation collection；
Step (3) distributes streaming media service flow, and specific method is：
C, setting assignment of traffic scheme, including：
I. the flow sum of activation network is met
Figure FSB00000827851300021
NactiveRepresent the network number that activation is concentrated, xiRepresent flow of the streaming media service in i-th of network, 1≤i≤Nactive；
If II. i-th of network is W-CDMA networks,
Figure FSB00000827851300022
If i-th of network is WiMaxTMNetwork, then
Figure 3082DEST_PATH_IMAGE020
；
If i-th of network is Wi-FiTMNetwork, then
Figure 185802DEST_PATH_IMAGE022
； 
Figure 231119DEST_PATH_IMAGE024
Represent that i-th of network adds intensity of load total after new business, it is xiFunction, 1≤i≤Nactive； 
Figure 626328DEST_PATH_IMAGE026
Represent the current intensity of load of i-th of network； 
III. exist
Figure FSB00000827851300031
1≤i≤NactiveConstraints under, calculate meet
Figure FSB00000827851300032
Xi；Wherein
Figure 266945DEST_PATH_IMAGE002
Represent the thresholding of the intensity of load of i-th of network, wiFor the weight of various networks, p is the power of intensity of load；
Assignment of traffic scheme is sent many radio resource management modules of joint to end side by d, many radio resource management modules of joint of network side, and terminal carries out multidiameter delay transmission according to each network allocation service traffics of this scheme to activation collection；
E, many radio resource management modules of joint of network side update the load state information of activation collection network；
Step (4) is transmitted until being transmitted if network does not overload according to the assignment of traffic scheme in step (3)；If network over loading, it is handled as follows：
F, many radio resource management modules of joint of network side notify that the network overloaded is concentrated in many radio resource management module activation of the joint of end side；
G, renewal Candidate Set：It is again the candidate network table under one current network conditions of terminal maintenance according to step (1) method, and searches the candidate network of the network same type with overloading in the table；If searched less than such network, many radio resource management modules of joint of end side are notified, and close such mixed-media network modules mixed-media；If the number for searching such candidate network is less than the number of the network overloaded, the information of the all-network searched is sent to end side and combines many radio resource management modules；If the number for searching such candidate network is identical with the number of the network overloaded, these network informations are sent to end side and combine many radio resource management modules；If the number for searching such candidate network is more than the number of the network overloaded, the information of the network with smaller intensity of load of wherein respective numbers is sent to end side and combines many radio resource management modules；
H, end side combine the switching that many radio resource management modules combine the information progress network that many radio resource management modules are sent according to network side：The connection with overloaded network is released, and accesses the network reselected in step g, while network side, which combines many radio resource management modules, updates activation collection；
I, many radio resource management modules of joint of network side carry out assignment of traffic, and many radio resource management modules of joint scheme sent to end side to the network that activation is concentrated again according to the method in step (3). 
CN2010101041123A 2010-01-26 2010-01-26 Method for multi-channel parallel transmission of streaming media services on basis of load balance Active CN101778114B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010101041123A CN101778114B (en) 2010-01-26 2010-01-26 Method for multi-channel parallel transmission of streaming media services on basis of load balance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010101041123A CN101778114B (en) 2010-01-26 2010-01-26 Method for multi-channel parallel transmission of streaming media services on basis of load balance

Publications (2)

Publication Number Publication Date
CN101778114A CN101778114A (en) 2010-07-14
CN101778114B true CN101778114B (en) 2012-09-05

Family

ID=42514442

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010101041123A Active CN101778114B (en) 2010-01-26 2010-01-26 Method for multi-channel parallel transmission of streaming media services on basis of load balance

Country Status (1)

Country Link
CN (1) CN101778114B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102612010B (en) * 2011-01-19 2016-08-03 中兴通讯股份有限公司 A kind of multi-link service control system and multi-link service traffics distribution method
CN102843723B (en) * 2011-06-23 2017-09-12 中兴通讯股份有限公司 A kind of method of joint transmission, system and anchor point network element
CN103188721B (en) 2011-12-28 2017-08-04 华为技术有限公司 A kind of data transmission method and device
CN102595502A (en) * 2012-02-02 2012-07-18 中兴通讯股份有限公司 Multi-mode mobile terminal and method for balancing load
CN103067978B (en) * 2012-12-28 2015-05-27 北京邮电大学 Traffic distribution method for multi-channel parallel communication of multi-mode terminal
CN104080151B (en) 2013-03-26 2018-02-23 华为技术有限公司 A kind of network selecting method, device and base station
CN103580842A (en) 2013-11-04 2014-02-12 惠州Tcl移动通信有限公司 Method and system for conducting parallel transmission through multiple types of wireless links
CN105338650B (en) 2014-08-08 2019-02-22 电信科学技术研究院 Cut-in method and device in a kind of heterogeneous network
WO2016141588A1 (en) * 2015-03-12 2016-09-15 华为技术有限公司 Data transmission method and apparatus, processor and mobile terminal
CN105553868A (en) * 2015-09-21 2016-05-04 宇龙计算机通信科技(深圳)有限公司 Data transmission method and device and terminal
CN105323856B (en) * 2015-09-30 2019-01-01 刘运成 A kind of heterogeneous network data fusion method and device based on radio resource division
CN116886687A (en) * 2022-01-10 2023-10-13 荣耀终端有限公司 Method, device and storage medium for displaying network acceleration effect

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1209921A (en) * 1996-11-26 1999-03-03 诺基亚电信公司 Method for load control and radio system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1209921A (en) * 1996-11-26 1999-03-03 诺基亚电信公司 Method for load control and radio system

Also Published As

Publication number Publication date
CN101778114A (en) 2010-07-14

Similar Documents

Publication Publication Date Title
CN101778114B (en) Method for multi-channel parallel transmission of streaming media services on basis of load balance
EP3226604B1 (en) Data multi streaming transmission method, apparatus, anchor point, and system
EP1909442B1 (en) System and methods for determining granularity level of information about buffer status
CN102083136B (en) Wireless network control method and wireless controller
CN108261763B (en) Acceleration system of game running environment
WO2017004858A1 (en) Subscriber tag-based shunting method and system in 5g network
RU2571377C2 (en) System and method of control of services, advanced nodeb and data packet network gateway
KR101503678B1 (en) A method and apparatus for processing the access of user terminal in a fixed access network
JP5926249B2 (en) Method for managing a wireless telecommunications network
WO2012116606A1 (en) Spectrum resource allocation method and apparatus
KR20120010936A (en) Apparatus and method to control session connection in a communication system
CN102300264A (en) Flow control method and system thereof for wireless network
CN103988543A (en) Control device in wireless local area network, network system, and service processing method
CN104780469A (en) Link switching and resource allocation method of audio/video data in multi-network transmission
CN103299569B (en) The method, apparatus and system that radio bearer controls
JP2015507418A (en) Group terminal mobility management method, mobility management system, and mobility management apparatus
WO2012151921A1 (en) Service transmission method and device for multi-interface terminal
CN1767672B (en) Dynamic setting of transmission scheduler algorithms
CN103987086A (en) Load balancing method and system for wireless terminal access points
CN106105380B (en) Data forwarding control method, system, controller and access device
US7388882B2 (en) Method for dynamically reconfiguring wireless network capacity
JP2011114632A (en) Band control system, load distribution device, and band control device
KR100596638B1 (en) Method for wireless resource management of mobile communication system and apparatus thereof
JP2005072682A (en) Communication system, communication method, network configuration management node, service control node, and accessing apparatus
KR101318836B1 (en) Apparatus for controlling modem states of mobile communication terminal and method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant