WO2006131981A1 - 無線通信システムおよびパケットフローの通信品質保証方法 - Google Patents
無線通信システムおよびパケットフローの通信品質保証方法 Download PDFInfo
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- WO2006131981A1 WO2006131981A1 PCT/JP2005/010685 JP2005010685W WO2006131981A1 WO 2006131981 A1 WO2006131981 A1 WO 2006131981A1 JP 2005010685 W JP2005010685 W JP 2005010685W WO 2006131981 A1 WO2006131981 A1 WO 2006131981A1
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- Prior art keywords
- communication quality
- qos
- communication
- access network
- request
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/805—QOS or priority aware
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/808—User-type aware
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/82—Miscellaneous aspects
- H04L47/824—Applicable to portable or mobile terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/82—Miscellaneous aspects
- H04L47/828—Allocation of resources per group of connections, e.g. per group of users
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/02—Inter-networking arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/06—Interfaces between hierarchically different network devices between gateways and public network devices
Definitions
- the present invention relates to a radio communication system, and more particularly to a radio communication system and a packet flow communication quality assurance method that facilitate QoS control when a handover between node devices occurs as a radio mobile station moves.
- Non-patent Document 1 QoS (Quality of Service, communication)
- PDSN Packet Data Serving Node
- QoS Quality of Service
- RAN Radio Access Network
- R QoS Requested QoS
- G QoS Granted QoS
- Non-Patent Document 2 The contribution of 3GPP2 (3rd Generation Partnership Project 2) “Nokia, X31-20040629-003, (June 29, 2004)” (Non-Patent Document 2) describes the inter-PDSN interface (P— It has been pointed out that there is room for optimization to send QoS information on the P interface (page 2, lines 31-33). However, a specific example of QoS setting in handover is not disclosed.
- Non-Patent Document 3 A method for setting QoS in the system is disclosed.
- This Annex.F discloses a call flow that a wireless mobile station MS (Mobile Station) requests QoS from the network and is allowed by the RAN.
- Non-Patent Document 4 P interface (inter-PDSN interface) is specified. Between Chapter 4 and PDSN using P—P interface A handover is disclosed.
- FIG. 1 shows a wireless communication system that is a prerequisite for the present invention.
- the P network 1 is an IP (Internet Protocol) core network.
- PDSN2 and PDS N3 are node devices that connect IP network 1 and RAN (Radio Access Network) 4 and RAN5, respectively. Since PDSN2 and PDSN3 are the handover source (Source) and destination (Target), respectively, the source PDSN is represented as sPDSN and the destination PDSN as tPDSN in the following description.
- RAN4 and RAN5 are radio access networks that are connected to PDSN2 and PDSN3 by the RAN-PDSN interface (R-P interface), respectively.
- RAN4 and RAN5 become the handover source (Source) and destination (Target), respectively, as the mobile terminal (wireless mobile station) MS 10 moves, so the source RAN is sRAN, The previous RAN is represented as tRAN.
- PCF Packet Control Function
- PCF8 are packet control devices connected to PDSN2 and PDSN3 by RAN-PDSN interface (RP interface), respectively.
- PCF6 and PCF8 are also the source and destination of handover, respectively, so the source PCF is represented as sPCF6 and the destination PCF as tPCF8.
- BS (Base Station) 7 and BS 9 are wireless base stations connected to PDSN2 and PDSN3, respectively. Since BS7 and BS9 are also the source and destination of the node over, respectively, the source BS is represented as sBS7 and the destination BS is represented as tBS9.
- AAA (Authentication, Authorization and Accounting) 11 is a user authentication Z accounting server connected to PDSN2 and PDSN3 via IP network 1.
- PDSN node devices
- a PPP (Point to Point Protocol) session is established for communication.
- the MS communicates with the PDSN via multiple connections established over a single PPP session.
- the connection includes a main connection and an auxiliary connection.
- the main connection is one connection that is always established between the MS and PDSN to communicate PPP control messages between the MS and PDSN.
- Auxiliary connection is based on application requirements such as VoIP, This connection is added to the main connection. Multiple auxiliary connections are established between the MS and PDSN as required.
- FIG. 7 shows an example of a call flow that can be considered in the prior art for guaranteeing QoS before and after handover between PDSNs.
- the main connection is set between the MS and PDSN, and then the QoS setting of the auxiliary connection is performed according to the request of the application operating on the MS.
- the MS 10 executes the procedure of the main connection (Main SC: Main Service Connection) 81 with the SPDSN2.
- SPDSN2 transmits access request message 82 for authenticating MS10 to AAA11, and waits for access approval message 83 from AAA11.
- the access approval message 83 is accompanied by a QoS user profile (QOS User Profile).
- QOS User Profile defines the QoS level determined by the contract that MS users have with the carrier, that is, the QoS that can be used by MS 10 (Approved QoS).
- the SPDSN 2 that has received the access approval message 83 notifies the sRAN 4 (either sBS 7 or sPCF 6 or both) of the QOS User Profile by an access permission message (Al 1 Session Update Message) 84.
- the MS 10 requests the auxiliary connection QoS by the QoS request message 85 to the sBS7.
- the QoS request message 85 specifies QoS (R QoS) requested by the MS 10.
- the sRAN 4 that has received the QoS request message 85 executes a QoS authorization and admission control procedure 86.
- QoS permission Z admission control procedure 86 R QoS is compared with the QOS User Profile, and it is determined whether or not the QoS is approved by the R QoS power MS 10.
- R QoS power When QoS is approved by MS10 and there are sufficient communication resources such as bandwidth in the radio section, radio resources that satisfy R QoS are allocated to MS10.
- the approved QoS means the QoS guaranteed to be used by the MS user in the QOSUser Profile.
- the QoS actually assigned to the MS in the above QoS permission Z admission control procedure 86 is referred to as G QoS.
- the sRAN4 notifies the MS 10 of the G Qo S guaranteed in the procedure 86 by the service connection message 87.
- the MS 10 returns a service connection completion message 88 to sRAN4.
- R QoS is SRAN4 rejects the allocation of R QoS if it violates the pre-guaranteed approved QoS in MS10 or if there are no remaining radio resources that satisfy R QoS.
- sRAN4 sends a reject message to MS 10 instead of the service connection message 87.
- a rejection message is issued, the sequence after the transmission of the service connection message 87 shown in FIG. 7 is not executed.
- the sRAN4 that has received the service connection completion message 88 notifies the SPDSN2 of G QoS and R QoS by an All registration request message 89.
- the sPDSN2 returns an Al registration response message 90 to the sRAN4.
- the MS 10 sends a Resv message 91 including correspondence information between the IP address of the MS 10 and the connection identifier as a TFT (Traffic Flow Tern plate) to the sPDSN 2.
- Resv message 91 sPDSN2 returns an acknowledgment message 92 to MS 10.
- packet communication according to G QoS is started in the auxiliary connection 93 between the sPDS N2 and the MS 10.
- QoS is set among MS10, tRAN5, and tPDSN3 by message exchange 98 in the radio section.
- a connection 105 is set between SPDSN2 and tPDSN3 through a PP interface, and an auxiliary connection 106 is set between tPDSN3 and MS10.
- Non-Patent Document 1 3GPP2 (3rd Generation Partnership Project 2) contribution "Qualcomm, X3 1-20040607-018 Rl, (June 7, 2004)"
- Non-Patent Document 2 Contribution of 3GPP2 (3rd Generation Partnership Project 2) “Nokia, X31-2 0040629-003, (June 29, 2004)”
- Non-Patent Document 3 "X.P0011-D-004, Rev0.5” (November 2005), which is being standardized by 3GPP2 (3rd Generation Partnership Project 2)
- Non-Patent Document 4 3GPP2 (3rd Generation Partnership Project 2) standardized "X.P0011-D-003, Rev0.5, (November 2005)"
- PDSN needs to manage QoS information (R QoS, G QoS, QOS User Profile) of all users connected to PDSN. For example, if communication in a metropolitan area is covered by a single PDSN, QoS information for a very large number of users will be concentrated on a single PDSN.
- QoS information R QoS, G QoS, QOS User Profile
- An object of the present invention is to reduce the amount of QoS information handled by a RAN device or PDSN in order to improve QoS information processing.
- Another object of the present invention is to improve the efficiency of QoS information transfer between PDSNs in inter-PDSN handover.
- Still another object of the present invention is to improve the efficiency of QoS information processing at the destination RAN (tRAN) in the inter-PDSN handover.
- the present invention provides a plurality of radio access networks each consisting of a radio base station and a packet control device, a plurality of node devices for connecting each radio access network to an IP network,
- Each wireless mobile station consists of an authentication server that stores communication quality level information guaranteed in advance by contract, and each wireless access network responds to the communication quality requirements of the wireless mobile station that communicates with the wireless base station.
- a wireless communication system that guarantees communication quality of a packet flow between a node device connected to the packet control device and the wireless mobile station,
- At least one of the radio base station and the packet control device of each radio access network verifies the first communication quality request received from the radio mobile station with the communication quality level information obtained from the authentication server, and sends it to the radio mobile station. It is converted to a second communication quality request (RAA QoS: Requested And Authorized QoS) consisting of a group of communication quality parameters in the guaranteed range, and the second communication quality request is allowed by the communication resources of the radio access network.
- RAA QoS Requested And Authorized QoS
- Possible third A means for controlling the communication quality of the packet flow of the wireless mobile station according to the third communication quality request, and at least one of the second and third communication quality requests. Means for notifying one of the nodes to the node device connected to the packet control device,
- Each of the node devices stores the communication quality request notified of the wireless access network power, and when the wireless mobile station in communication moves to another wireless access network, the second, corresponding to the wireless mobile station Means for notifying at least one of the third communication quality requests to the handover destination node device, and when receiving the communication quality request of the wireless mobile station from the other node device of the handover source, Means for notifying the wireless access network connected to the node device,
- each radio access network When at least one of the radio base station and the packet control device of each radio access network receives the communication quality request from the node device, communication that can accept the received communication quality request with communication resources of the radio access network It is characterized in that it is converted into a quality requirement and the communication quality of the packet flow of the mobile radio station that has moved is controlled in accordance with the communication quality requirement.
- the second communication quality request is the communication quality parameter power of the plurality of sets. It also has a smaller number of sets of communication quality parameters than the first communication quality requirement selected according to the communication quality level guaranteed to the wireless mobile station, and the third communication quality requirement is the second communication quality requirement. Is equal to or smaller than the number of communication quality parameters.
- the communication quality parameter of the third communication quality request includes, for example, a transmission rate, a transmission delay, an error rate, a received signal quality in a radio section, or interference signal power in a radio access network. Is selected from the third communication quality requirement with at least one of the above as communication resources.
- the radio access network system of the present invention includes a radio base station and a packet control device, and is connected to an IP network via a node device connected to the packet control device.
- the radio base station And at least one of the packet controllers
- the communication quality parameter group included in the first communication quality request received from the wireless mobile station connected to the wireless base station is guaranteed in advance by the wireless mobile station obtained from the authentication sano connected to the IP network. Verification is made with the communication quality level information, and it is converted into a second communication quality request that is a group of communication quality parameters in a range guaranteed by the radio mobile station, and further, the second communication quality request is converted into communication of the radio access network.
- QoS authorization Z admission control means for converting to a third communication quality requirement acceptable by the resource
- the communication quality of the packet flow of the wireless mobile station connected to the radio base station is determined. And a means for controlling.
- the packet control device stores a second communication quality request converted by the QoS permission Z admission control means, and the radio Means for notifying the packet control device of the radio access network that is the node over destination when the inter-node device handover occurs in the radio mobile station connected to the base station.
- the second wireless communication quality request can be notified to the handover target radio access network without going through the node device.
- a communication quality assurance method for packet flow includes:
- At least one of the radio base station and the packet controller of each radio access network verifies the first communication quality request received from the radio mobile station with the communication quality level information obtained from the authentication server, and is guaranteed by the radio mobile station.
- the second communication quality requirement is converted to a second communication quality requirement, which is a group of communication quality parameters, and the second communication quality requirement is converted into a communication resource To the third communication quality request acceptable by the network, and notifies at least one of the second and third communication quality requirements to the node device connected to the packet control device, and the third communication
- the communication quality of the packet flow of the wireless mobile station is controlled, and each node device connected to each wireless access network stores the communication quality request notified from the wireless access network, When a mobile station moves to another wireless access network, it notifies the node device of the handover destination of at least one of the second and third communication quality requests corresponding to the wireless mobile station, and from the other node device.
- the communication quality request of the wireless mobile station is received, the received communication quality request is notified to the radio access network connected to
- At least one of the radio base station and the packet control device of each radio access network converts the communication quality request received by the node device power into a communication quality request acceptable by the communication resource of the radio access network, and the communication quality It is characterized by controlling the communication quality of the packet flow of the moving wireless mobile station according to the request.
- the first communication quality request is, for example, a plurality of sets of communication quality metric powers having different request priorities.
- at least one of the radio base station and the packet control device of each radio access network communicates with the radio mobile station in advance from the plurality of sets of communication quality parameters indicated by the first communication quality request.
- the second communication With the communication quality parameter set that should also guarantee the first communication quality requirement power according to the quality level information, the second communication with the communication quality parameter power of a smaller number of sets than the first communication quality requirement.
- a quality request is generated, and a third communication quality request is generated from the second communication quality request with the number of communication quality parameter sets equal to or less than that of the second communication quality request.
- the required communication quality may be defined by a plurality of sets of communication quality parameters having different request priorities for each flow.
- the communication to be guaranteed for each flow from the first communication quality request according to the communication quality level information preliminarily guaranteed by the radio base station and the packet control device of each radio access network.
- the second communication quality request is generated, and from the second communication quality request, acceptable according to available communication resources.
- a third communication quality request is generated by selecting a communication quality parameter set.
- the amount of control information to be transferred from the handover source to the handover destination is reduced, so that QoS control of the radio mobile station in the handover destination radio access network is performed. And communication resources can be used effectively.
- both the wireless base station BS and the packet control device PCF have a QoS request processing function and a QoS control function.
- the QoS request processing function is either BS or PCF. You can set it up only in!
- FIG. 2 shows an example of the radio base station BS7 of the present invention.
- the BS7 is a radio base station that serves as an access point for MS10.
- Network interface (NW IF) 25 is an interface with a network for connecting to PCF6.
- the baseband processing unit BB24 performs baseband processing of transmission / reception signals, modulation of transmission signals, and synchronization acquisition and demodulation of reception signals.
- the intermediate frequency processing unit IF23 is the first step of the intermediate frequency IF (Intermediate Frequency). T.
- IF 23 performs DA (Digital to Analog) conversion on the baseband signal input from ⁇ 24, then converts it to an intermediate frequency, and outputs it to radio frequency processing section RF22.
- IF23 performs AD (Analog to Digital) conversion on the signal input from RF22 and outputs it to BB24.
- the RF (radio unit) 22 performs signal processing of radio frequency RF (Radio Frequency).
- the RF 22 up-converts the signal input from the IF 23 to a radio frequency, amplifies the transmission power, and then outputs the signal to the antenna 21 for transmission to the MS 10.
- the RF 22 down-converts the radio signal from the MS 10 input from the antenna 21 to an intermediate frequency and outputs it to the IF 23.
- the control unit 27 has a management function for the entire BS 7.
- Information is transmitted between BS7 and PCF6 in A8 and A9 packets.
- A8 and A9 packets also have a header part that stores control information and a payload part that stores transmission information.
- RAN control information is set in the payload portion of the A9 packet and transmitted.
- MS 10 transmission / reception information is the payload of A8 packet. Set and transmitted.
- the control unit 27 assembles, disassembles, and discards A8 and A9 packets that are transmitted and received between the wireless transmission unit and the PCF 6, transmission timing control of the wireless transmission unit using the timer 26, Manage information.
- the control unit 27 performs QoS information processing including conversion from R QoS power to RAA QoS based on the QOS User Profile described later and conversion from RAA QoS power to G QoS according to the state of communication resources.
- GOS control of each mobile terminal is performed according to G QoS.
- the storage unit 28 holds transmission / reception data and management information including QoS information.
- the timer 26 is a counter that increases with time.
- FIG. 3 shows an example of the packet control device PCF (Packet Control Function) 6 of the present invention.
- PCF Packet Control Function
- PCF6 creates an A8 or A9 packet and sends it to BS7. PCF6 also receives A8 or A9 packets with BS7 power. Information is transmitted between PCF6 and PDSN2 using A10 and All packets. The A10 and All packets also have the power of a header part that stores control information and a payload part that stores transmission information. The RAN control information is set and transmitted in the payload portion of the All packet. In addition, transmission / reception information of MS 10 is transmitted by setting it in the payload portion of the A10 packet.
- the PCF 6 rewrites the headers of the A8 packet and A9 packet received from the BS 7 and converts them into an A10 packet and an All packet, respectively. It also rewrites the headers of A10 and All packets received from PDSN2 and converts them to A8 and A9 packets, respectively. PCF6 creates an A10 or All packet and sends it to PDSN2.
- NW IF30 is a network interface for connecting to PCF8
- NW IF31 is a network interface for connecting to BS7
- NW IF36 is a network interface for connecting to PDSN2.
- SW32 and 35 are switches for exchanging signals.
- the control unit 33 also includes QoS information that includes conversion from R QoS power to RAA QoS based on the QOS User Profile and conversion from RAA QoS power to G QoS according to the state of communication resources.
- the TC (Traffic Controller) 34 is a traffic control unit that assembles, disassembles, and transmits / receives A8 and A10 packets.
- FIG. 4 shows an example of the traffic control unit TC34 of the present invention.
- the storage unit 37 holds management information including transmission / reception packet data and QoS information designated by the control unit 33 of the PCF6.
- the CPU 38 performs packet transmission / reception management such as management of information held in the storage unit 37, assembling, disassembling, and discarding of A9 and A11 packets, and packet flow control according to QoS information.
- the timer 39 is a counter that increases with time.
- FIG. 5 shows an example of the node device PDSN2 of the present invention.
- the PDSN 2 receives an IP packet from the IP network 1.
- PDSN2 creates an A10 packet or an All packet, transmits it to PCF6, and receives a PCF6 force, an A10 packet or an All packet.
- PDSN2 creates an IP packet and sends it to IP network 1.
- NW IF46 is a network interface to connect to PCF6
- NW IF47 is a network interface to connect to IP network 1
- NW IF48 is a network interface to connect to other PDSN. It is a source.
- the storage unit 42 holds management information including IP packets to be transmitted / received, A10 / A11 packets, and QoS information.
- the control unit 43 performs management of information held in the storage unit 42, packet transmission / reception management such as assembly, disassembly, and discard of A10ZA11 packets and IP packets, and QoS information processing.
- the UIF 44 is a user interface
- the timer 45 is a counter that increases with time.
- FIG. 6 shows an example of AAA (Authentication, Authorization and Accounting) 11 which is the accounting Z authentication server of the present invention.
- AAA Authentication, Authorization and Accounting
- RADIUS Remote Authentication Dial In User Service
- IETF Internet Engineering Task Force
- the AAA 11 performs processing for authentication and accounting according to RADIUS, for example.
- NW I F51 is a network interface connected to the IP network 1.
- the storage unit 52 stores management information including a User QoS Profile described in detail later.
- the control unit 53 performs management of information stored in the storage unit 52, control of IP packet transmission / reception, authentication and billing processing.
- UIF54 is a user interface, and wireless operators can use this UIF54 for example. For example, the user QoS profile information based on the contract with the user is added to the storage unit 53 and the user QoS profile is edited.
- the timer 55 is a counter that increases with time, and the AAA 11 measures the charging start time and the charging end time by the timer 55 and performs charging according to the time.
- the control sequence up to requesting auxiliary connection QoS (R QoS) with the MS10 power QoS request message 85 is the same as in FIG. 7, and the description thereof is omitted here.
- sRAN4 (sBS or sPCF) refers to QOS User Profile in QoS authorization Z admission control procedure 140, and QoS requested by MS 10 (R QOS) Select a QoS parameter group that can also allow the parameter group power indicated by, and store it in the memory as RAA QOS (Requested And Authorized QoS).
- R QOS specifies request QoS for one or more flows, as detailed with reference to Figure 13, and the request QoS indicates multiple levels of request QoS for each flow. It is defined by multiple QoS parameter sets.
- QOS User Profile is a QoS definition item (priority, peak transmission rate, maximum allowable delay, total bandwidth, etc.) included in R QOS. For some MS users, the threshold level approved by the contract is shown.
- sRAN4 compares the QoS parameter set specified in R QoS with the QOS User Profile in the above Q0S permission Z admission control procedure 140, and the QoS parameter set that does not conform to the QOS User Profile is Exclude and convert R QoS into RAA QoS (Requested And Authorized QoS) consisting of QoS parameter sets conforming to QOS User Profile.
- sRAN4 verifies the QoS parameter set group indicated by the above RAA QoS based on the current state of wireless and wired communication resources, selects the QoS parameter set that can be guaranteed by sRAN4, and assigns the MS10 QoS. Do. Below, the QoS actually assigned to MS10 by sRAN4 or tRAN (defined by the QoS parameter set guaranteed by sRAN4 or tRAN to MS Defined QoS) is called G QoS.
- the sRAN4 notifies the G QoS to the MS 10 by the service connection message 87.
- the MS 10 returns a service connection completion message 88 to sRAN4.
- sRAN4 notifies QoS information (G QoS and RAA QoS in the present embodiment) to sPDSN2 by means of an All registration request message 141.
- the control unit 27 of the sBS7 27 Read RAA QoS from 28, create a QoS information notification message including RAA QoS and G QoS, and send from NW IF25 to sPCF6.
- the QoS information notification message is received by the NW IF 31 of sPCF6, analyzed by the control unit 33, and the control unit 33 creates an All registration request message 141 including G QoS and RAA QoS.
- the control unit 33 of the sPCF 6 transmits an All registration request message 141 from the NW IF36 force to the sPDSN 2.
- the above All registration request message 141 is received by the NW IF 46 of SPDSN 2 and analyzed by the control unit 43.
- the control unit 43 of SPDSN2 stores the G QoS and RAA QoS included in the All Registration Request message 141 in a storage unit 42 and sends an All Registration Response message 90 to sRAN4.
- MS 10 sends a Resv message 91 indicating the correspondence between the IP address of MS 10 and the connection identifier to SPDSN2.
- the SPDSN2 returns an acknowledgment message 92 to the MS 10.
- the setting of the auxiliary connection 93 between the SPDSN2 and the MS 10 is completed, and the MS 10 can communicate with the QoS (G QoS) guaranteed through the auxiliary connection 93.
- a handover has occurred due to movement of MS 10 after the start of communication by auxiliary connection 93.
- the occurrence of a handover can be detected by, for example, tRAN and notified to sPDSN via tPDSN.
- SPDSN2 sends a transfer message 142 including QOS User Profile, G QoS, and RAA QoS to tPDSN3.
- the control unit 43 of the SPDSN 2 reads the QOS User Profile, G QoS, and RAA QoS stored in the storage unit 42, for example, and creates the transfer message 142.
- This message 142 is sent from the NW IF48 force to tPDS N3.
- the tPDSN3 transfers the QOS User Profile, G QoS, and R AA QoS to the tRAN5 by the access permission message 143.
- the control unit 43 of tPDSN 3 analyzes the transfer message 142 received by the NW IF 48 and stores the QOS User Profile, G QoS, and RAA QoS included in the transfer message 142 in the storage unit 42.
- the control unit 43 of the tPDSN 3 creates an access permission message 143 including QOS User Profile, G QoS, and RAA QoS, and transmits the access permission message 143 from the NW IF 46 to the tPCF 8.
- the control unit 33 of the tPCF 8 analyzes the transfer message 143 received from the NW IF 36 and stores the QOS User Profile, G QoS, and RAA QoS included in the message 143 in the storage unit 37.
- the control unit 33 of tPCF8 creates a QoS information notification message including QOS User Profile, G QoS, and RAA QoS, and transmits it from NW IF31 to tBS9.
- the control unit 27 of tBS9 analyzes the QoS information notification message received by the NW IF7, and stores the QOS User Profile, G QoS, and RAA QoS included in the QoS information notification message in the storage unit 28.
- the tRAN5 verifies the QoS parameter set group indicated by the RAA QoS notified from the tPDSN3 by the transfer message 143 in the QoS admission control procedure 144 based on the current communication resource state, and obtains a guaranteeable QoS parameter set. Select and assign the QoS defined in the guaranteed QoS parameter set as G QoS to MS10. In other words, tRAN5 allocates G QoS if the tRAN5 communication resource has room to accommodate new connections at any of the multiple levels of QoS required by RAA QoS. Included in RAA Qo S! / If there is not enough communication resource to satisfy even the level of deviation, GA is not allocated with RAA QoS, and a request rejection message is sent to MS 10.
- tRAN5 Since tRAN4 has already been approved on the tRAN4 side that executed the QoS authorization Z admission control procedure 140, tRAN5 indicates that the RAA QoS is the QoS approved by MS 10 in the QoS admission control procedure 144. Comparison processing between RAA QoS and QOS User Profile for confirmation can be omitted.
- tRAN5 sends an All Registration Request message 145 including RAA QoS and G QoS assigned to MS10 to tPDSN3. In response to the All Registration Request message 145, tPDSN3 returns an All Registration Response message 100 to tRAN5.
- the tRAN5 sends the QoS (G QoS) guaranteed by the QoS admission control procedure 144 to the MS 10 by the service connection message 101.
- MS10 responds to service connection message 101.
- a service connection completion message 102 is returned to tRAN5.
- QoS is set between MS10, tRAN5, and tPDSN3, and auxiliary connection 106 is set up to MS10 via sPDSN2 force tPDSN3.
- sRAN4 selects, as RAA QoS, a QoS parameter set group that can be permitted to MS users from QoS parameter set groups included in R QoS, based on QoS User Profile. Store in SPDSN2.
- the sPDSN can exclude unnecessary QoS parameter information that cannot be permitted by the user, and can also save the storage capacity, so that the memory capacity of the memory can be saved.
- the tRAN5 side (tBS9 or tPCF8) that executes the QoS admission control procedure 144 also needs to store the RAA QoS information received from tPDSN3.
- the RAA received from tPDSN3 by tRA N5 Since QoS has already been excluded from QoS parameters that are not necessary for the allocation of G QoS to MS10, memory storage capacity can be saved.
- G QoS can be allocated to MS 10 based on RAA QoS including QoS parameter information that has been authenticated on the sRAN side, so QoS authentication processing based on QoS User Profile is performed. Can be omitted and QoS assignment can be completed in a short time
- RAA QoS is included instead of the payload power R QoS of the transmission message 141 from sRAN to sPSDN.
- RAA QoS is set in the payload of the transmission message 142 from sPSDN to tPSDN and the transmission message 143 from tPSDN to tRAN. Since these messages can shorten the payload length compared to R QoS transmission messages, communication resources in the wired network can be saved.
- FIG. 9 shows a call flow according to the present invention that is executed when a handover between PDSNs occurs.
- 2 shows a communication sequence of a second embodiment.
- the sPDSN reduces QoS information and notifies the tRAN via the PDSN of the reduced QoS information, thereby simplifying QoS information processing (G QoS allocation) in tRAN. Characterized by that! /
- the sRAN4 notifies the sPDSN2 of the QoS (G Qo S) assigned to the MS 10 and the requested QoS (R QoS) by the All registration request message 89.
- the sPDSN2 In response to the Al registration request message 89, the sPDSN2 returns an Al registration response message 90 to the sRAN4.
- the sequence until sPDS N2 sends the above Al registration response message 90 is the same as in FIG.
- the SPDSN2 power RAA QoS parameter information selection 146 determines that the QOS User
- R QoS is converted to RAA QoS, and this is stored in the storage unit.
- the sequence after RAA QoS parameter information selection 146 is the same as in FIG.
- the tRAN5 (tBS9 or tPCF8) uses the QoS parameter set group indicated by the RAA QoS notified from the tPDSN3 by the transfer message 143 in the QoS admission control procedure 144 based on the current wireless and wired communication resource status. Verify QoS, select a QoS parameter set that can be guaranteed, and assign G QoS to MS10.
- the sPDSN only needs to exclude unnecessary QoS parameter information that cannot be permitted by the user from the storage target and store the RAA QoS. Can be saved.
- the tRAN5 side tBS9 or tPCF8
- QoS parameters that are not required for the allocation of G QoS to the RAA QoS power MS10 received by tRAN5 from tPDSN3 are already excluded. Therefore, memory storage capacity can be saved.
- QoS admission control procedure 144 QoS assignment processing based on the QoS User Profile can be omitted, and QoS assignment can be completed in a short time. Furthermore, when the QoS information of the moved MS 10 is notified from sRA N4 to sPDSN, the payload length of sPSDN to tPSDN transmission message 142 and tPS DN to tRAN transmission message 143 can be shortened. Communication resources can be saved.
- the RAA QoS is received from the tRAN5 card tPDSN3 as the movement destination to the MS 10, but the RAA QoS is directly notified from the sRAN4 to the tRAN5. You may make it.
- FIG. 10 shows a communication sequence of a third embodiment of the call flow according to the present invention executed when a handover between PDSNs occurs. This embodiment is applied when a communication interface exists between PCFs and control messages 70 can be transmitted and received between RANs via this communication interface. The sequence until main connection 95 is established via tPDSN3 is the same as in FIG.
- This embodiment is characterized in that when inter-PDSN handover occurs, RAA QoS is directly notified from sRAN4 to tRAN5 by an inter-RAN transfer message 70.
- sBS7 executes the QoS permission Z admission control procedure 140 and stores RAA QoS in the storage unit 28 of sBS7.
- the control unit 27 of the sBS 7 reads the storage unit 28 power RAA QoS, creates a RAA QoS notification message, and transmits the RAA QoS notification message from the NW IF25 to the sPCF6.
- the RAA QoS notification message is received by the NW IF 31 of sPCF6, and the control unit 33 analyzes the received message and creates an inter-RAN control message 70 including RAA QoS.
- the control unit 33 of the sPCF6 transmits the control message 70 from the NW IF30 to the tPCF8.
- the control unit 33 of the tPCF 8 Upon receiving the control message 70 from the NW IF 30, the control unit 33 of the tPCF 8 extracts the RAA QoS from the received message 70, creates a RAA QoS notification message, and transmits the NW IF 31 power to the tBS 9 as well.
- the control unit 27 of the tBS 9 analyzes the received RAA QoS notification message and stores the RAA QoS indicated by the received message in the storage unit 28.
- the sequence after admission control 144 is the same as in FIG.
- tBS9 can verify and guarantee the QoS parameter set group indicated by RAA QoS notified by the RAA QoS notification message from tPCF8 based on the current communication resource state. Select the QoS parameter set and assign G QoS to MS 10.
- the sPDSN only needs to exclude unnecessary QoS parameter information that cannot be permitted by the user from the storage target and store the RAA QoS. Can be saved.
- the tBS9 that executes the QoS admission control procedure 144 also accepts it. Since the received RAA QoS has already excluded the QoS parameters that are not required for the allocation of G QoS to the MS10, memory storage capacity can be saved. Also, in the QoS acceptance control procedure 144, QoS assignment processing based on the QoS User Profile can be omitted, and QoS assignment can be completed in a short time.
- FIG. 11 shows a communication sequence of a fourth embodiment of the call flow according to the present invention executed when a handover between PDSNs occurs.
- the sequence until the main connection 95 is established via tPDSN3 is the same as in FIG.
- the RAA QoS is notified by the transfer message 148 to the SPDSN2 force tPDSN3.
- tPDSN3 notifies the above RAA QoS to tRAN5 by the access permission message 149.
- the above RAA QoS is guaranteed by the QoS authorization Z admission control procedure 140 executed on the sRAN side to have already been approved by applying the QOS User Profile, so the RAN side from the sPDS N2 to the tPDSN3 It is not necessary to send QOS User Pr file to approve MS10's required QoS. Also, in the QoS admission control 144 executed at tRAN5, the comparison process between RAA QoS and QOS User Profile for confirming that the RA A QoS is the QoS approved by the MS 10 can be omitted.
- the tRAN5 (tBS9 or tPCF8) indicates the QoS parameter set group indicated by the RAA QoS notified by the transfer message 143 from the tPDSN3 force to the QoS admission control procedure 144. Verify based on the status of each, select a QoS parameter set that can be guaranteed, and assign G QoS to MS10.
- the sPDSN only needs to exclude unnecessary QoS parameter information that cannot be permitted by the user from the storage target and store the RAA QoS. Can be saved.
- the tRAN5 side tBS9 or tPCF8
- QoS parameters that are not required for the allocation of G QoS to the RAA QoS power MS10 received by tRAN5 from tPDSN3 are already excluded. Therefore, memory storage capacity can be saved.
- QoS admission control procedure 144 QoS assignment processing based on QoS User Profile can be omitted, and QoS assignment can be completed in a short time. Furthermore, Since the payload length of messages 141, 148, and 149 for notifying QoS information of MS10 can be shortened, communication resources in the wired network can be saved.
- FIG. 12 shows a communication sequence of the fifth embodiment of the call flow according to the present invention executed when a handover between PDSNs occurs.
- handover between PD10 of MS10 occurs after the start of communication on the auxiliary connection 93
- the sequence until the main connection 95 is established via tPDSN3 is the same as in FIG.
- G QoS is notified from the sRAN to the SPDSN 2 by the All registration request message 141 in the process of establishing the auxiliary connection 93.
- G QoS is notified to SPDSN2 force tPDSN3 by transfer message 150.
- the tPDSN3 notifies the G QoS to the tRAN5 by the access permission message 151.
- the tRAN5 uses the G QoS parameter set group notified by the access permission message 151 from the tPDSN3 force in the QoS admission control procedure 152 based on the current wireless and wired communication resource states. And select a QoS parameter set that can be guaranteed, and assign G QoS to MS10.
- SPDSN2 only needs to store G QoS with a reduced amount of information, so memory capacity can be saved.
- tRAN5 (tBS9 or tPCF8) also has only to store G QoS, and it is not necessary to store unnecessary QoS parameter information that cannot be permitted by the user, so the memory capacity can be saved.
- QoS admission control procedure 152 QoS assignment processing based on the QoS User Profile can be omitted, and QoS assignment can be completed in a short time. Furthermore, since the payload length of the messages 89, 150, and 151 for notifying the MS10 QoS information can be shortened, communication resources in the wired network can be saved.
- the QoS information notification message 148 or 150 from SPDSN2 to tPDSN3 includes only RAA QoS or G QoS with a reduced amount of information. Therefore, the amount of transfer information and the amount of processing in the system can be reduced, and as a result, high-speed handover can be realized.
- the QOS User Profile may be sent to tPDSN in a message different from sPDSN power transfer messages 148 and 150. In this way, when the MS 10 after handover requests a new QoS flow setting, the QOS User Profile of the MS 10 can be immediately supplied from tPDSN to tRAN.
- a user ID (User ID) 159 indicates the user identifier of the MS 10, and the number of flows (Num Flow) 160 indicates the number n of flows (auxiliary connections) for which the MS 10 requests QoS.
- the information block 158 includes a flow ID 164 indicating a flow identifier to which the QoS definition of the information block 158 is applied, a plurality of QoS parameter entries (R QoS parameter sets) 16 7 to 169, and the information block 158. It consists of a set number (Num Set) 166 indicating the number m of QoS parameter entries included, and a length (Length) 165. A length (Length) 165 indicates the length of Num Setl 66 and QoS parameter entries 167 to 169 that follow the Num Setl 66. These parameter entries 167 to 169 each have a set ID (Set ID) and are arranged in order of request priority.
- Set ID set ID
- Each QoS parameter entry includes, for example, a set length 70 indicating the length of the QoS parameter entry, a set MD (Set ID) 157 serving as an identifier of the QoS parameter entry, a conversation, Traffic class (Traf fic class) 172 indicating the traffic type such as streaming, priority (173) indicating the allocation priority of radio resources, peak rate (Peak rate) 174 indicating the transmission rate at peak time, Max latency 175 indicating the maximum latency value allowed for the flow and the maximum data loss rate allowed for the flow.
- the maximum loss rate (Max loss rate) 176 which indicates a large value
- the maximum jitter (max jitter) 177 which indicates the maximum value of jitter allowed for the flow, are specified.
- FIG. 14 shows an example of the G QoS format.
- G QoS is powered by User ID 179 indicating the user identifier of the requesting MS 10, Num Flowl 80 indicating the number n of subsequent flow entries, and n flow entries 181 to 183.
- Each flow entry is powered by a Flow ID 184 indicating a flow identifier and a Set ID (Set ID) 185 that identifies a QoS parameter set, as shown in block 178.
- MS10 is assigned which QoS parameter set (parameter entry) 167 to 169 in each flow specified by R QoS explained in Figure 13. I can understand.
- FIG. 15 shows an example of the format of the QOS User Profile.
- the QOS User Profile includes a User ID 191 indicating an MS user identifier, an approved Set ID (Authorized Set ID) 192 indicating a list of Set IDs approved for the user by contract, and a priority approved by the user.
- An approved priority (Authorized Priority) 193 and an approved total bandwidth (Authenticated Aggregate BW) 194 indicating a total value of communication bandwidths (transmission rates) approved by the user are shown.
- FIG. 16 shows another example of the format of the QOS User Profile.
- the QOS User Profile shown here is the User ID 200 that indicates the MS 10 user identifier, the Approved Set ID (Authorized Set ID) 201 that indicates the list of Set IDs that have been approved by the user, and the Approved traffic class (Authorized Traffic class) 202, Approved priority (Authorized Priority) 203 indicating the priority approved by the user, Approved peak rate (Authorized Peak) approved by the user rate) 204, Approval Max latency (Aut horized Max latency) 205 showing the Max latency approved by the user, Max 1 oss rate (Authorized Max loss rate) 206 showing the Max loss rate approved by the user An authorized Max jitter (Authorized Max jitter) 207 and an authorized aggregate bandwidth (Authorized Aggregate BW) 194 indicating the Max jitter approved by the user are shown.
- the Approved Set ID 201 that indicates the list of Set IDs that have been approved by the user
- Approved traffic class
- FIG. 17 shows a QoS information table (PDSN table) held in the storage unit 42 by PDSN 2 and 3. ) Is an example of entry.
- PDSN table QoS information table
- a plurality of entry strengths indicating User QoS Profile 211, RAA QoS 212, and G QoS 213 are registered in correspondence with User ID 210 indicating the MS user identifier.
- the User QoS Profile 211 is the content obtained by excluding the User ID 2000 from the QoS User Profile shown in FIG. 15 or FIG.
- RAA QoS 212 reduces the amount of R QoS information by RAA QoS parameter information selection processing based on the User QoS Profile.
- the RAA QoS parameter set selection process based on the User QoS Profile will be described in detail later with reference to FIGS.
- G QoS 213 is the QoS that RAN is actually assigned to MS users, and is the content excluding User ID 179 from G QoS power shown in Fig. 14.
- FIG. 18 shows a QoS information table held in the BS storage unit 28 or the PCF storage unit 37.
- the BS / PCF table also shows the User QoS Profile 216, RAA QoS 217, and G QoS 218 of the MS user corresponding to the User ID 215.
- the contents of User QoS Profile 216 are the same as User QoS Profile 211 in FIG.
- FIG. 19 shows an example of an entry in the QoS information table (AAA table) held in the storage unit 52 by the AAA 11.
- AAA table a plurality of entries indicating the User QoS Profile 221 are registered in association with the User ID 220 indicating the MS user identifier.
- the contents of User QoS Profile 221 are the same as User QoS Profile 211 in FIG.
- FIG. 22 shows an example of the RAA QoS format.
- RAA QoS is a content that reduces the QoS parameter set (parameter entry) that does not conform to the R QoS power and User QoS Profile shown in Figure 13 by selecting the RAA QoS parameter set based on the User QoS Profile. RU
- the information block 258 includes a flow ID 264 indicating the identifier of the flow to which the QoS definition of the information block 258 is applied, and a plurality of QoS parameter entries (RAA QoS parameter set) 267 269, the number of QoS parameter entries included in the information block 258, the number of sets (Num Set) 266 indicating the number h, and the length (Length) 265.
- RAA QoS parameter set QoS parameter entries
- the number h of QoS parameter entries (R AA QoS parameter sets) included in each flow entry of RAA QoS is less than or equal to the number m of QoS parameter entries (R QoS parameter sets) included in each flow entry of R QoS. This is because, in the RAA QoS parameter information selection process, the QoS User Profile is applied and the QoS parameter set that does not conform to the QoS User Profile is deleted from the R QoS parameter set group.
- each QoS parameter entry includes, for example, a set length 270 indicating the length of the entry, a set ID (Set ID) 257 serving as the identifier of the entry, and a traffic type as shown in the information block 257.
- Traffic class 272 indicating priority
- priority 273 indicating radio resource allocation priority
- peak rate 274 indicating peak transmission rate
- flow allowed Max latency 275 indicating the maximum delay value
- Max loss rate 276 indicating the maximum data loss rate value allowed for the flow
- FIG. 20 is a flowchart showing an example of RAA QoS parameter information selection (QoS permission) processing executed by the BS7, PCF6, or PDSN2 serving as the handover source in the QoS permission Z reception control procedure 140 or 86. It is.
- the QoS User Pr ofile shown in Fig. 15 is applied, and it conforms to Qo S User Profile from the R QoS parameter set group shown in Fig. 13 requested by MS 10. No Delete the QoS parameter set.
- R QoS is converted into RAA QOS that leaves only the QoS parameter set approved in the QoS User Profile.
- BS storage unit 28 force Q Assume that OS User Profile is retained.
- the BS control unit 27 (or PCF control unit 33, PDSN control unit 43) is used to verify all QoS parameter sets against the QOS User Profile for each R QoS flow entry and QOS User Pr Select a QoS parameter set (RAA QoS parameter set) that conforms to File.
- Step O the control unit 27 detects the R QoS User ID 159, the total number of flows n indicated by Num Flowl 60, and the number m of QoS parameter entries indicated by Num Setl 66 corresponding to each flow.
- the control unit 27 stores the RAA QoS User ID 259 and Num shown in FIG. 22 in the RAA QoS 217 (or RAA QoS 212) area reserved in the QoS table of the storage unit 28 (BSZPCF table in FIG. 18). Write the value of Flow260.
- Stepl the control unit 27 sets the value of the index J for identifying the flow entry to "1”, and adds Flow ID 264, Length265, Num to the first IRAA QoS entry of RAA QoS217 (or RAA QoS212). Write the value of Set ID267.
- Step 2 the control unit 27 sets the value of index I for identifying the parameter entry to “1”.
- Step 8 QoS information is not written to RAA QoS217 (or RAA QoS212) of the QoS table. Force Num Set266 value is decremented (1) and Length265 value is set to Set Length 70 minutes from the current value. Rewritten to the value obtained by subtracting.
- the value of Set ID 171 in information block 157 is “3”, and Authorized Set ID 192 in QOS User Profile specifies the values “1, 2, 3, 4, 5, 6, 7, 8”. If set, Set ID 171 falls within the specified range of Authorized Set ID 192, so the flowchart sequence proceeds to Step 4.
- Step 5 or Step 8 the control unit 27 increments the value I of the parameter entry index I (+1) in Step 6, and in Step 7, sets the value of I to the number of R QoS entries m. Compare. If the value of I is less than or equal to m, return to Step 3 and repeat the above-mentioned process with the next parameter entry of the R QoS Jth flow entry as the judgment target.
- Step 7 When the value of I exceeds m in Step 7, the control unit 27 increments the value of the flow entry index J in Step 9 (+1), and in SteplO sets the value of J to the R QoS flow entry. Compare with number n. If it is less than the value of J, return to Step2. As a result, the flow entry to be determined is changed, and the above-described processing is repeated from the first parameter entry.
- the value of parameter J exceeds 3 ⁇ 4 in SteplO the RAA QoS parameter selection process ends.
- FIG. 21 is a flowchart showing another embodiment of RAA QoS parameter selection (QoS permission) processing executed in BS7, PCF6, or PDSN2 serving as a handover source.
- the R QoS in FIG. 13 requested by the MS 10 is converted into the RAA QOS.
- the BS storage unit 28 (or PCF storage unit 37, PDSN storage unit 42) holds the QOS User Profile.
- the BS control unit 27 (or PCF control unit 33, PDSN control unit 43) is as follows: For each R QoS flow entry, all QoS parameter sets are checked against the QOS User Profile and R Select the RAA QoS parameter set conforming to QoS and QOS User Profile.
- Stepl5 the control unit 27 determines the value QOS of Traffic classl72 in the information block 157 above.
- Step22 It is determined whether or not it is within the range specified in Authorized Traffic class 202 of User Profile. If it is within the specified range, the process proceeds to Stepl6. Otherwise, Step22 is executed.
- R QoS Traffic When 1 & 33172 ⁇ 6 & ⁇ 6 class is specified and Authorized Traffic class 202 of QOS User Profile specifies Background class and Streaming class, control unit 27 determines that Traffic class 172 is outside the specified range, Execute Step22.
- Stepl6 the control unit 27 determines whether or not it is within the range specified in Authorized Priority 203 of Priorityl73 in the information block 157 of Priorityl73. Otherwise, execute Step22.
- Stepl7 the control unit 27 determines whether or not the value of Peak ratel74 of the information block 157 is within the range specified by Authorized Peak rate 204 of QOS User Profile. If it is within the specified range, Stepl8 If not, execute Step22.
- Stepl8 the control unit 27 controls the value QOS of Max latency 175 of the information block 157 described above.
- Stepl 9 It is determined whether or not it is within the range specified by Authorized Max latency 205 of User Profile. If it is within the specified range, proceed to Stepl9, otherwise execute Step22. For example, if R QoS Max latency l75 is 20ms and Authorized Max latency 205 is 10ms or more, Max latency l75 is within the specified range, so Stepl 9 is executed.
- Step 20 the control unit 27 determines whether the value of Max jitterl 77 of the information block 157 is within the range specified by Authorized Max jitter 207 of the QOS User Profile. If not, execute Step22. For example, if Max jitt erl77 is 2ms and Authorized Max jitter207 is specified as 5ms or less, Since Max jitterl77 is within the specified range, Step21 is executed.
- Step 21 or Step 22 After executing Step 21 or Step 22, the control unit 27 executes Step 23 to Step 26. These steps are the same as Step 7 to Step 10 in FIG. 20, and description thereof is omitted here.
- FIG. 23 is a flowchart showing an example of RAA QoS determination processing executed by tRAN in the QoS admission control procedure 144.
- the tRAN that executes the RAA QoS determination process is at least one of tBS and tPCF, and either tBS or tPCF may be executed depending on the system configuration.
- tBS or tPCF
- RAA QoS determination processing transmission control procedure 1444
- G QoS is assigned to the MS by the same RAA QoS judgment process.
- tBS Before executing the RAA QoS determination process, tBS adds the User ID 215, User QoS Profile 216, and the format shown in FIG. 22 to the QoS table shown in FIG. 18 formed in the storage unit 28. It is assumed that RAA QoS 217 is stored. At this point, G QoS 218 of the QoS table is empty.
- the BS control unit 27 checks the RAA QoS parameter set for each RAA QoS flow entry according to the following procedure.
- Step 30 the control unit 27 determines the total number of flows n indicated by the RAA QoS Num Flow 260 having the User ID 259, and the number of QoS parameter entries indicating the Num Set 266 corresponding to each flow h in Step 30. Is extracted and the values of User ID 179 and Num Flowl80 are written in the G QoS 218 area of the QoS table.
- step 31 the control unit 27 sets the value of the index J for identifying the flow entry to 1, and in step 32 sets the value of the index I for identifying the parameter entry to 1.
- the control unit 27 determines whether or not the peak rate 274 can be sufficiently guaranteed from the state information of the wireless section obtained as control information.
- Radio section status information includes received signal quality measured by tB S (or MS), interference signal power, communication data rate, It only needs to reflect QoS in the communication channel between tBS and MS, such as error rate.
- the peak rate achievable in the radio section may be stored in advance in the BS storage unit 28, and it may be determined whether or not the peak rate 274 can be guaranteed. If the peak rate 274 required by RAA QoS can be guaranteed, proceed to Step 34, otherwise execute Step 37.
- Step 34 the control unit 27 determines whether or not the Max latency 275 indicated by the information block 257 can be guaranteed by tRAN (service available). For example, the control unit 27 refers to the capacity of the transmission / reception buffer formed in the storage unit 28 and determines whether or not the necessary Max latency 275 can be sufficiently guaranteed. The maximum delay that can be guaranteed may be stored in the storage unit 28 in advance, and it may be determined whether Max latency 275 can be realized with reference to this. If Max latency 275 can be guaranteed, proceed to Step 35, otherwise execute Step 37.
- tRAN service available
- Step 35 the control unit 27 determines whether or not the Max loss rate 276 of the information block 257 can be guaranteed by tRAN (service available). This determination is performed with reference to the state information of the wireless section obtained as control information, for example.
- the maximum loss rate may be stored in the storage unit 28 in advance, and it may be determined whether the Max loss rate 276 can be guaranteed with reference to the maximum loss rate. If the Ma X loss rate 276 can be guaranteed, proceed to Step 36, otherwise execute Step 37.
- the control unit 27 uses the parameter entry for parameter entry in Step 37. Increment the value of index I (+1), and in step 38 compare the value of I with the number of parameter entries h. If the value of index I is less than 3 ⁇ 4 ⁇ , return to Step 33 and repeat the above-mentioned determination for the next parameter entry of the same flow entry.
- the control unit 27 may notify the MS 10 of the Flow ID of the flow for which QoS could not be guaranteed!
- whether or not the guarantee capability is possible is determined for the three types of QoS parameters, but the QoS parameter to be determined may be other than the embodiment.
- the QoS parameter to be determined may be other than the embodiment.
- the present invention is applicable to mobile radio networks.
- FIG. 1 An example of a wireless system configuration is shown.
- FIG. 2 shows an example of the configuration of the radio base station in FIG.
- FIG. 3 shows a configuration example of the packet control device in FIG.
- FIG. 4 shows a configuration example of the traffic control unit in FIG.
- FIG. 5 shows an example of the configuration of the node device in FIG.
- FIG.7 Sequence diagram showing an example of a conventional call flow for inter-PDSN handover It is.
- FIG. 8 is a sequence diagram showing a first embodiment of the call flow of the present invention in inter-PDSN handover.
- FIG. 9 is a sequence diagram showing a second embodiment of the call flow of the present invention in inter-PDSN handover.
- FIG. 10 is a sequence diagram showing a third embodiment of the call flow of the present invention in inter-PDSN handover.
- FIG. 11 is a sequence diagram showing a fourth embodiment of the call flow of the present invention in inter-PDSN handover.
- FIG. 12 is a sequence diagram showing a fifth embodiment of the call flow of the present invention in inter-PDSN handover.
- FIG. 13 An example of the format of R QoS information is shown.
- FIG. 14 An example of the format of G QoS information is shown.
- FIG.15 Shows an example of QOS User Profile format.
- FIG. 16 shows another example of the QOS User Profile format.
- FIG. 17 shows an example of a QoS information table provided in the storage unit of the PDSN.
- FIG. 18 shows an example of the QoS information table provided in the BS or PCF storage unit.
- FIG. 19 shows an example of the QOS information table provided in the AAA storage unit.
- FIG. 20 is a flow chart showing one embodiment of RAA QoS parameter information selection processing according to the present invention.
- FIG. 21 is a flowchart showing another embodiment of RAA QoS parameter information selection processing according to the present invention.
- FIG. 23 is a flowchart showing one embodiment of an admission control procedure executed in the RAN of the movement destination.
Abstract
Description
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JP2007520007A JP4914832B2 (ja) | 2005-06-10 | 2005-06-10 | 無線通信システム、装置、及び方法 |
US11/916,723 US8532053B2 (en) | 2005-06-10 | 2005-06-10 | Wireless communication system and method for assuring communication quality of packet flow |
CN2005800500834A CN101199216B (zh) | 2005-06-10 | 2005-06-10 | 无线通信系统和数据包流的通信品质保证方法 |
PCT/JP2005/010685 WO2006131981A1 (ja) | 2005-06-10 | 2005-06-10 | 無線通信システムおよびパケットフローの通信品質保証方法 |
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US (1) | US8532053B2 (ja) |
JP (1) | JP4914832B2 (ja) |
CN (1) | CN101199216B (ja) |
WO (1) | WO2006131981A1 (ja) |
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US10638369B2 (en) * | 2016-12-20 | 2020-04-28 | Qualcomm Incorporated | Quality of service configuration based on channel quality |
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- 2005-06-10 CN CN2005800500834A patent/CN101199216B/zh not_active Expired - Fee Related
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JP2014239482A (ja) * | 2007-01-22 | 2014-12-18 | クゥアルコム・インコーポレイテッドQualcomm Incorporated | ネットワークベースモビリティ管理システムのためのマルチリンクサポート |
JP2012120170A (ja) * | 2010-11-29 | 2012-06-21 | Zte (Usa) Inc | 加入者サービス品質プロファイルを構成する方法及び装置 |
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JP2011147138A (ja) * | 2011-02-03 | 2011-07-28 | Hitachi Ltd | 無線通信システムおよびパケットフローの通信品質保証方法 |
JP2014531793A (ja) * | 2011-09-02 | 2014-11-27 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | アクセス/ネットワークサービスプロバイダのためのコンテンツデリバリセッション課金 |
JP2015528259A (ja) * | 2012-07-20 | 2015-09-24 | オラクル・インターナショナル・コーポレイション | 統合ネットワークにおける加入者宅内機器(cpe)を動的に構成するための方法、システムおよびコンピュータ読取可能媒体 |
JP2020504518A (ja) * | 2016-12-29 | 2020-02-06 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおいてビームを支援する方法及び装置 |
CN109151852A (zh) * | 2017-06-16 | 2019-01-04 | 捷开通讯(深圳)有限公司 | 一种通信方法、通信设备及具有存储功能的设备 |
Also Published As
Publication number | Publication date |
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JPWO2006131981A1 (ja) | 2009-01-08 |
CN101199216B (zh) | 2011-06-08 |
CN101199216A (zh) | 2008-06-11 |
JP4914832B2 (ja) | 2012-04-11 |
US20090103454A1 (en) | 2009-04-23 |
US8532053B2 (en) | 2013-09-10 |
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