WO2008089660A1 - Procédé, dispositif et système de réseau radio pour une unification d'accès radio - Google Patents

Procédé, dispositif et système de réseau radio pour une unification d'accès radio Download PDF

Info

Publication number
WO2008089660A1
WO2008089660A1 PCT/CN2008/000134 CN2008000134W WO2008089660A1 WO 2008089660 A1 WO2008089660 A1 WO 2008089660A1 CN 2008000134 W CN2008000134 W CN 2008000134W WO 2008089660 A1 WO2008089660 A1 WO 2008089660A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearer
data
network
transport
transmission
Prior art date
Application number
PCT/CN2008/000134
Other languages
English (en)
Chinese (zh)
Inventor
Zhengfei Ren
Mingjiang Xie
Yong Qiu
Hongzhuo Zhang
Yongfeng Deng
Original Assignee
Huawei Technologies Co., Ltd.
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 Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008089660A1 publication Critical patent/WO2008089660A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points

Definitions

  • the present invention relates to wireless communication technologies, and in particular, to a method, an apparatus, and a wireless network system for unified wireless access. Background technique
  • RAT Radio Access Technology
  • GSM Global System for Mobile communications
  • WCDMA Wideband Code Division Multiple Access
  • WiMAX Long Term Evolution
  • LTE Long Term Evolution
  • AIE Advanced Integrated Evolution
  • CDMA2000 Code Division Multiple Access 2000
  • Different radio access technologies constitute different base station systems, such as base station BTS in GSM technology; base station NodeB in WCDMA technology; base station BS in WiMAX technology; base station eNodeB in LTE technology.
  • each eNodeB is connected through an X2 interface, and the eNodeB and the mobility management entity/user plane entity MME/UPE are connected through an S1 interface.
  • the user service and signaling data on the S1 and X2 interfaces are packet data packets based on IP technology. Therefore, IP technology is used as the network layer technology at the network layer, because the IP network does not depend on the physical layer of the underlying network. And link layer technology, so 3GPP does not specify the physical layer and link layer of the packet or interface. As shown in FIG.
  • the base stations BS are interconnected through the R8 interface, and the BS and the access service network-gateway ASN-GW are connected through the R6 interface, and the ASN-GW and the connection service network CSN are passed.
  • the R3 interface is connected.
  • the user service and signaling data on the interface in the WiMAX system are packet data packets based on EP technology, so IP technology is used as the network layer technology at the network layer, because the IP network does not depend on the physics of the underlying network. Layer and link layer technologies, so IEEE 802.16 does not specify the physical layer and link layer of the packet domain interface.
  • circuit domain As shown in Figure 4, in the CDMA2000 system, it is divided into two categories: circuit domain and packet domain according to the service type.
  • the Al, A2, A5, A3, and A7 interfaces transmit circuit-type services and their signaling with high real-time requirements
  • A8, A9, A10, and All interfaces transmit user packet data packets and their signaling.
  • the physical layer technology adopts traditional circuit transmission technologies, such as: T1/E1, DS0 link, or higher rate T3, OC3 Etc., the data transmission layer uses the No. 7 signaling system or the asynchronous transmission mode ATM technology.
  • the user service data is a packet data packet based on IP technology, so the A8, A9, A10, and All interfaces in the packet domain use IP technology as the network layer technology. Since the IP network does not depend on the physical layer and link layer technologies of the underlying network, the IOS standard does not specify the physical layer and link layer of the packet domain interface.
  • the base station NodeB and the radio network controller RNC are interconnected through the Iub interface, and the RNC and the RNC are connected through the Iur port, and the RC and the mobile switching center/visit location register MSC/VLR are connected. Connected through the Iu-CS interface, the RNC and the SGSN are connected by Iu-PS.
  • the data link layer in WCDMA is transmitted by ATM, and AAL5 and AAL2 are used as two ATM adaptation layer protocols to complete the data adaptation function, that is, the data structure of the high-level application is represented as the cell structure of the ATM layer, and Required operational and management features.
  • AAL5 is used for non-real-time connection-oriented and connectionless data transmission. It is the bearer for ATM signaling and general data transmission.
  • AAL2 is designed for variable bit rate data streaming and is used to transport voice services.
  • the interface technology adopted by the currently implemented multi-standard base station is a multi-standard interface, and the interface can Can be multiple independent distributed interfaces. That is, if the multi-standard base station is configured with an LTE base station, the base station supports an S1/X2 interface, which is transmitted by using an IP transmission network, and may be carried on an optical fiber or on an Ethernet. If the multi-standard base station is configured with a GSM base station, the base station supports the Abis interface and the A interface, and uses E1 physical medium transmission. If the multi-standard base station is configured with a WiMAX base station, the base station supports the R8 interface. For other wireless access technologies or some future access technology base station may be other interfaces.
  • Embodiments of the present invention provide a method, a device, and a wireless network system for unified wireless access based on a multimode base station, so as to provide a unified transmission bearer in a radio access network, thereby conserving resources and reducing implementation complexity.
  • a method for unified wireless access comprising the steps of:
  • a multimode base station supporting multiple radio access systems in a radio access network accesses a plurality of radio access system user equipments to the network;
  • a multi-mode base station and other network nodes employ a transport bearer to transmit data based on the plurality of radio access systems.
  • a method for unified wireless access comprising the steps of:
  • a method of processing data in a multimode base station comprising the steps of:
  • a multimode base station supporting multiple radio access standards is processed according to a protocol adopted by the radio access system Upsizing data based on different radio access systems, and obtaining user data on the bearer layer; processing the user data separately according to the same transport bearer, and obtaining data that can be transmitted on the transport bearer network based on the same transport bearer .
  • a method of processing data in a multimode base station comprising the steps of:
  • a multi-mode base station supporting multiple radio access systems processes uplink data based on different radio access systems according to a protocol used by the radio access system, and obtains data of the bearer layer;
  • the data of the bearer layer is separately processed according to the same transport bearer, and data that can be transmitted on the transport bearer network based on the same transport bearer is obtained.
  • a multimode base station comprising:
  • protocol processing unit a plurality of protocol processing units, respectively configured to process data based on different wireless access technologies; and an interface unit, connected to the plurality of protocol processing units, configured to process the plurality of transmission bearer protocols supported by the transport network
  • the data output by the protocol processing unit is sent to the transport network, and the data received from the transport network is received and processed and transmitted to the corresponding protocol processing unit.
  • An interface conversion device includes:
  • a receiving module configured to receive data
  • a determining module configured to determine whether the received data is based on a transport bearer that is the same as a transport bearer network that transmits the data or a transport bearer supported by a target node that receives the data;
  • a processing module configured to adapt the received data to a transport bearer supported by the transport network support or the target node when determining that the transport bearer is different;
  • a sending module configured to send data to the transport bearer network and the target node.
  • a base station controller includes:
  • a receiving module configured to receive data based on a GSM system
  • a determining module configured to determine whether the received bearer based on the received data is the same as the transport bearer supported by the device, and determining whether the data to be sent is the same as the transport bearer supported by the transport network;
  • a processing module configured to: when the transmission bearer is different from the transmission bearer of the device, Adapting to the transport bearer supported by the device, and adapting the data to be transmitted to the transport bearer supported by the transport network when determining the transport bearer different from the transport bearer network;
  • Send module used to send data.
  • a communication device comprising:
  • a receiving module configured to receive data based on a UMTS system
  • a determining module configured to determine whether the data to be sent is the same as the transmission bearer supported by the transport network; and the processing module, configured to adapt the data to be sent to the transport supported by the transport network when determining that the transport bearer is different from the transport bearer of the transport bearer network
  • Send module used to send data.
  • a wireless network system comprising:
  • a transport bearer network for transmitting data through a unified transport bearer
  • a first network node connected to the transport network, is configured to access user equipments of different radio access technologies to the network, where the user equipments based on different radio access technologies are processed according to the transport bearer manner supported by the transport network Transmitting and transmitting the data to the transport bearer network, and collecting data from the bearer bearer network and transmitting the data to the user equipment;
  • the second network node includes a plurality of network nodes supporting different wireless access technologies, configured to receive uplink data transmitted by the transmission network, and send downlink data to the first network node by using the transmission network.
  • FIG. 1 is a schematic structural diagram of a GSM network system in the prior art
  • FIG. 2 is a schematic structural diagram of an LTE network system in the prior art
  • 3 is a schematic structural diagram of a WiMAX network system in the prior art
  • 4 is a schematic structural diagram of a CDMA2000 network system in the prior art
  • FIG. 5 is a schematic structural diagram of a WCDMA network system in the prior art
  • 6A is a schematic diagram of networking of a bearer of a radio access network by using IP technology in an embodiment of the present invention
  • FIG. 6B is a schematic structural diagram of a multimode base station implementing an IP transmission bearer according to an embodiment of the present invention
  • FIG. 7A and FIG. 7B are respectively schematic diagrams of a user plane protocol stack and a control plane protocol of an LTE and WiMAX network system according to an embodiment of the present invention; ;
  • 7C is a schematic diagram of networking in which an IP technology is used as a bearer of a radio access network and data protocol matching is completed by an interface conversion apparatus according to an embodiment of the present invention
  • FIG. 7D and FIG. 7E are schematic diagrams showing the mutual conversion between the user plane protocol stack and the control plane protocol stack of the ATM bearer protocol and the user protocol stack and the control plane protocol stack of the IP bearer protocol according to the embodiment of the present invention
  • FIG. 7F and FIG. 7G are respectively FIG.
  • the user plane protocol stack and the control plane protocol stack of the PCM bearer protocol and the user protocol stack and the control plane protocol stack of the IP bearer protocol are mutually converted according to the embodiment of the present invention
  • FIG. 8 is a schematic structural diagram of an interface conversion apparatus according to an embodiment of the present invention. ;
  • FIG. 9A is a schematic diagram of networking in which an Ethernet is used as a transmission bearer of a wireless network according to an embodiment of the present invention
  • FIG. 9B is a schematic diagram of networking in which a xDSL is used as a transmission bearer of a wireless network according to an embodiment of the present invention
  • 10B and 10C are respectively schematic structural diagrams of a multi-mode base station for implementing a TDM transmission bearer according to an embodiment of the present invention
  • FIG. 11 and FIG. 12 are schematic diagrams of carrying an IP protocol stack on a TDM and an ATM protocol stack on a TDM according to an embodiment of the present invention
  • FIG. 13 is a schematic diagram of a TDM access network architecture using an independent interface conversion device according to an embodiment of the present invention.
  • FIG. 14 is a schematic diagram of a TDM access network architecture using microwave as a relay transmission according to an embodiment of the present invention.
  • 15A is a schematic diagram of a group of an ATM system as a wireless network transmission bearer according to an embodiment of the present invention.
  • FIG. 15B and FIG. 15C are schematic structural diagrams of a multimode base station implementing an ATM transmission bearer according to an embodiment of the present invention.
  • 16 is a schematic diagram of converting a GSM transport protocol stack into an ATM transport protocol stack in an embodiment of the present invention
  • 17 is a schematic diagram of a WCDMA transmission protocol stack in an embodiment of the present invention.
  • FIG. 18 is a schematic diagram of a layered structure of an IP over ATM protocol according to an embodiment of the present invention.
  • FIG. 19 is a schematic diagram of converting an A1 interface protocol stack into an ATM transport protocol stack according to an embodiment of the present invention.
  • FIG. 20 is a schematic diagram of converting an A2 interface protocol stack into an ATM transport protocol stack according to an embodiment of the present invention. detailed description
  • a unified transmission bearer is used to transmit data between the multimode base station and the upper node.
  • the multi-mode base station (or multi-standard base station) refers to a protocol processing module corresponding to multiple access technologies respectively, and includes base stations formed in the same node device, and the protocol processing modules can share part of device resources, such as node devices. Backplane bus, CPU of the node device, memory of the node device, and even some board resources.
  • the node device includes the physical expansion of the node device, for example, the capacity of the node device is expanded by a chassis stack or the like.
  • the multimode base station and its superior nodes are collectively referred to as network nodes, and each protocol processing module within the multimode base station is similar to a logical base station.
  • the protocol processing module included in the multi-mode base station is a GSM protocol processing module corresponding to the GSM system, corresponding to the UMTS protocol processing module of the UMTS system, corresponding to the LTE protocol processing module of the LTE system, corresponding to the WiMAX protocol processing module of the WiMAX system, And corresponding to it Two or more of the protocol processing modules of the wireless system; correspondingly, the upper node of the multimode base station may include a wireless network controller of the GSM base station controllers BSC, UMTS (including WCDMA and TD-SCDMA systems) The RNC, the LTE access gateway aGW (possibly corresponding specific nodes are the mobility management entity MME and the user plane entity UPE), the WiMAX gateway GW, and two or more of the other possible upper nodes.
  • the upper node may also be a multi-mode upper node, that is, the upper node includes multiple logical upper nodes, such as BS (, aGW RNC, etc.).
  • the transmission bearer used by different technologies in a single-mode base station is different.
  • PCM is used as a transmission bearer in the GSM system
  • ATM or IP can be used as a transmission bearer in UMTS, in LTE or WiMAX.
  • IP is used as the transport bearer. Therefore, in this embodiment, a unified transmission bearer is used to transmit data between the multi-mode base station and the upper-level node, and the unified transmission bearer may be an IP transmission bearer, an asynchronous transmission mode ATM transmission bearer, and a time division multiplexing TDM transmission bearer.
  • a transmission bearer may be an IP transmission bearer, an asynchronous transmission mode ATM transmission bearer, and a time division multiplexing TDM transmission bearer.
  • Fig. 6A shows an example of a network system for transmitting data between the multimode base station and its upper node in the IP transmission network in this embodiment.
  • the multimode base station 60 is interconnected by the IP bearer network 61 and the base station controller BSC 62.
  • the access gateway aGW 63, the gateway GW 64 and the radio network controller RNC 65 and various possible superior nodes 66 are interconnected.
  • the IP bearer network 61 may be an Ethernet or a leased subscriber digital line xDSL; user data and control data of each logical base station in the multimode base station 60 are carried over the IP.
  • FIG. 6B shows the structure of a multimode base station 60 in this embodiment, which includes a GSM protocol processing unit 600, a UMTS protocol processing unit 601, an LTE protocol processing unit 602, a WiMAX protocol processing unit 603, and an IP interface unit 604.
  • the GSM protocol processing unit 600, the LTE protocol processing unit 602, and the WiMA protocol processing unit 603 respectively process the received uplink data and downlink data according to the protocol of the corresponding wireless access system;
  • the IP interface unit 604 is configured to send and receive data according to the IP protocol. Process the transmitted data and the received data.
  • the multimode base station 60 is not limited to the above.
  • the protocol processing unit may also include other possible protocol processing units, such as the Air Interface Evolution AIE protocol processing unit.
  • a variation of the multimode base station shown in FIG. 6B is that the IP interface unit is independently set up with a plurality of protocol processing units, that is, the IP interface unit exists as a separate device, and between multiple protocol processing units in the multimode base station. Interacting through the communication interface, which treats the data in the same way.
  • the data encapsulated according to the bearer layer protocol may be transmitted according to the transport bearer protocol used by the wireless system corresponding to the protocol processing unit, and the user data on the bearer layer may also be transmitted.
  • the IP interface unit completes the conversion between the IP protocol and its protocol. For example, GSM protocol processing unit 600 transmits protocol data based on PCM bearers to IP interface unit 604, which translates it into protocol data based on IP bearers. If the user data on the bearer layer is transmitted, the IP interface unit performs IP encapsulation on the uplink data and correspondingly decapsulates the received downlink data.
  • the GSM protocol processing unit 600 transmits the user data that is not encapsulated by the bearer layer to the IP interface unit 604, and the interface unit 604 encapsulates it into an IP packet and transmits it to the bearer network; correspondingly, the IP interface unit 604 receives the downlink. After the IP packet is packetized, it is decapsulated and transmitted to the corresponding protocol processing unit.
  • the protocol processing unit of the multimode base station 60 is similar to a logical base station. Each protocol processing unit can be assigned an IP address, or the entire multimode base station can be assigned an IP address.
  • the source IP address and the destination IP address may be determined according to the source of the data (each protocol processing unit) according to the unit 604, and then the user data is encapsulated into The IP data packet is sent to the IP bearer network; for the received downlink data, since the IP address of each protocol processing unit is different, the data packet can be distinguished according to the destination IP address, and each data packet is sent to the corresponding protocol processing unit. Go in.
  • the IP interface unit 604 will depend on the source of the data. Determine the destination IP address, that is, the source can be learned based on the port. For the uplink data packet, the IP interface unit 604 determines the destination IP address according to the source of the data (determined by the interface of each protocol processing unit and the IP interface unit), and the source IP address uniformly fills in the IP address of the multimode base station.
  • the IP interface unit 604 determines that the uplink data is from the GSM protocol processing unit 600
  • the IP address of the corresponding upper-level node base station controller 62 is used as the target address
  • the IP address of the multi-mode base station 60 is used as the source address; for example, determining the uplink
  • the IP address of the corresponding upper node gateway 64 is used as the target address
  • the IP address of the multimode base station 60 is used as the source address.
  • the destination IP address is the IP address of the multimode base station 60
  • the data packets of the respective protocol processing units can be distinguished according to the source IP address therein. For example, if the downlink data packet is determined to be from the base station controller 62 according to the source IP address, the downlink data packet is transmitted to the GSM protocol processing unit; for example, the downlink data packet is determined to be from the wireless network according to the source IP address.
  • the controller 65 the downlink data packet is transmitted to the UMTS protocol processing unit.
  • the user plane protocol stack is shown in Figure 7A.
  • User data is used to negotiate UDP as the transport protocol on the IP layer, and an encapsulation protocol is used on the UDP layer to encapsulate user data.
  • the specific encapsulation protocol The GTP protocol, the GRE protocol, or the FP protocol can be used, and the user data is encapsulated in the encapsulation protocol. Since the GTP protocol is adopted in UMTS, the GTP protocol is also planned in the LTE/SAE system. Therefore, the GTP protocol is recommended as the encapsulation protocol.
  • the protocol stack of the control plane is shown in Figure 7B.
  • the transport layer can use the SCTP protocol and the application layer protocol on top of the SCTP layer.
  • the corresponding application layer protocols of different wireless systems are different.
  • the application layer protocol is NBAP protocol
  • the application layer protocol is eRANAP protocol.
  • the interface unit does not need to distinguish the application layer protocol, and only needs to send the application layer data packet to each protocol processing unit according to the IP address.
  • the access bearer may be an IP transport bearer or an ATM transport bearer; if IP transport is used
  • the bearer has the same protocol stack as that of Figures 7A and 7B.
  • the transmission mode adopted by the upper-level node base station controller 62 is non-IP mode, or the upper-layer node radio network controller 65 of the UMTS adopts the ATM transmission bearer mode, and implements the IP bearer mode and other transmissions through an interface conversion device. Mutual conversion of protocol stacks between bearer modes.
  • the multimode base station 70 is used with the independently arranged interface switching device 72.
  • the IP network 71 transmits data, with IP as a unified physical layer bearer; between the interface switching device 72 and the base station controller BSC 73 is a PCM transport bearer (transmission voice), and between the interface switching device 72 and the radio network controller RC 74
  • the ATM transport bearer between the interface switching device 72 and the gateway GW 75, is an IP transport bearer.
  • the function performed by the interface switching device 72 includes: performing protocol conversion on the data transmission bearer to the PCM transmission bearer for the data sent to the base station controller BSC 73 according to the target IP address in the uplink data, and then transmitting the data to the base station in the PCM transmission bearer manner.
  • the controller BSC73 performs protocol conversion on the data transmission bearer to the ATM transmission bearer for the data sent to the radio network controller RNC 74, and then transmits the data to the radio network controller 74 in the ATM transport bearer manner; for the gateway GW 75
  • the number of uplinks is not directly converted to the protocol and sent directly to the gateway GW75.
  • the data from the base station controller BSC73 is subjected to protocol conversion of the PCM transmission bearer to the IP transmission bearer, and the data from the radio network controller RNC 74 is subjected to protocol conversion of the ATM transmission bearer to the IP transmission bearer, and then The converted data is sent to the IP network.
  • FIG. 7D The mutual conversion of the user plane protocol stack between the ATM bearer protocol and the IP bearer protocol is shown in FIG. 7D, and the mutual conversion of the control plane protocol stack between the ATM bearer protocol and the IP bearer protocol is as shown in FIG. 7E.
  • FIG. 7F The mutual conversion of the user plane protocol between the PCM bearer protocol and the IP bearer protocol is shown in Fig. 7F, and the mutual conversion of the control plane protocol between the PCM bearer protocol and the IP bearer protocol is as shown in Fig. 7G.
  • FIG. 8 is a schematic structural diagram of an interface conversion apparatus according to the embodiment, which mainly includes: a receiving module 800, a determining module 810, a processing module 820, and a sending module 830; the receiving module 800 receives data; and the determining module 810 receives the received information according to the identifier.
  • the transmission bearer used by the data When the received data carries the transmission bearer different from the transport node supported by the upper node (ie, the target network element) or the transport network, the data is transmitted to the processing module 820; otherwise, the data is directly transmitted to the sending module 830; 820 performs protocol conversion on data (the conversion process is as described above) or performs protocol encapsulation processing on the data; the sending module 830 is configured to send the data to the bearer network.
  • the interface conversion device may be disposed as a module inside the upper node. In this configuration, it may be existing.
  • a determination module and a processing module are added to the base station controller or the radio network controller, and the receiving module and the sending module may be existing modules in the base station controller or the radio network controller.
  • the switching means is provided inside the base station control BSC 37, and at this time, the functions of the judging module and the processing module are the same as those of the aforementioned converting means.
  • the conversion device is disposed inside the radio network controller RNC74.
  • the data received from the bearer network does not need to be judged, and the judging module only judges whether the transmission bearer supported by the device and the transport network is the same.
  • the data to be sent is adapted to the transport bearer supported by the transport bearer network.
  • the interface conversion device may also be disposed in the same physical entity as the upper node, and each device interacts through the internal interface.
  • the protocol conversion performed by the interface conversion device on the data is the same as the foregoing, and will not be described again.
  • FIG. 9A shows a specific example of using Ethernet as an access bearer.
  • the multimode base station 90 is linked to each other via the Ethernet 91 and the superior nodes BSC92, aGW93 GW94, NC95 and various possible superior nodes 96.
  • the IP interface unit of the multimode base station 90 provides an Ethernet interface network card function, data buffering, and pre-processing functions.
  • the IP interface unit determines the received data stream according to the destination IP address or according to the source IP address. It is sent to each protocol processing unit. For the data packets sent from each protocol processing unit, the IP interface unit encapsulates and adds the corresponding source IP address and destination IP address to the transmission network.
  • the interface conversion module that completes the protocol conversion function in this example is placed in each upper node. Due to In a single-mode base station, a PCM link is used between the BSC and the base station. Therefore, in this example, an interface switching device 920 is added to the BSC for protocol stack conversion (the interface board of the BSC can also be directly modified); An interface conversion module 950 is added to the RNC that only provides the ATM for protocol stack conversion (the interface board of the RNC can also be directly modified).
  • FIG. 9B shows an example of using xDSL as an access network bearer.
  • DSLAM uses xDSL to the broadband access server BRAS to provide an access bearer between the multimode base station and the network.
  • BRAS broadband access server
  • an Ethernet network port is provided, so the multimode base station can still It is considered to be linked to each superior node through an IP network.
  • the functional requirements of each node are the same as those of FIG. 9A, and will not be described again.
  • This example provides a solution that can be used in practical applications, that is, if the operator has difficulty in network cabling or is too costly, the IP link can be provided by renting an xDSL line.
  • the IP transmission network is used as a unified access bearer between the multi-mode base station and its upper-level nodes, which facilitates the deployment of the network by the operator.
  • the IP transmission bearer will be the development direction, and the WiMAX technology for providing data services and
  • the latest evolution technologies of LTE, such as LTE, use IP as a bearer, and its operating cost is low. Operators can even lease xDSL lines as bearers.
  • FIG. 10A shows an example of a network system for transmitting data between a multimode base station and its upper node in the TDM transmission network in the embodiment, including: a multimode base station 100, a time division multiplexing TDM system 101, and a corresponding upper node 102, a superior
  • the node 102 includes upper nodes corresponding to base stations in a plurality of wireless access systems.
  • the multimode base station 100 is upgraded based on the original site, there is generally a transmission medium such as E1 or optical fiber. It is necessary to consider the reuse of these transmission media. Therefore, it can be used in a time division multiplexing TDM system 101. Time division multiplexing is used to provide different transmission bearers.
  • the TDM system 101 multiplexes different transmission bearers into the same TDM system by time division.
  • part of the time slot 1010 is used to carry PCM voice
  • part of the time slot 1011 carries IP data traffic
  • part of the time slot 1012 carries ATM data.
  • Unified cooperation between the multimode base station 100 and the superior node 102 Tune resources For example, a time slot for transmitting PCM voice is uniformly determined, and a time slot for transmitting an IP data packet.
  • the unified coordination resources can be implemented in various ways.
  • the time slots for transmitting PCM voice, ATM data packets, and IP data packets can be configured in a static configuration manner, and the allocated time slots are fixed in the service process; The time slot is configured in a dynamic manner. If the traffic between different bearers changes, for example, the IP service is increased and the PCM voice service is reduced, the resources are adjusted on the TDM transmission bearer between the multimode base station and the upper node. .
  • TDM Time Division Multiplexing
  • FIG. 10B shows the structure of a multimode base station 100 in this embodiment, which includes a GSM protocol processing unit 1000, a UMTS protocol processing unit 1001, an LTE protocol processing unit 1002, a WiMAX protocol processing unit 1003, and a TDM interface unit 1004.
  • the functions of the protocol processing units are the same as those of the protocol processing unit in the aforementioned multimode base station.
  • other multi-mode base stations 100 may also include other possible protocol processing units.
  • the protocol processing module in the multi-module base station 100 and the TDM interface unit 1004 transmit non-protocol data
  • the interface unit 1004 includes a PCM bearer processing module 1004-1, an ATM bearer processing module 1004-2, and an IP bearer processing module 1004-3.
  • the TDM interface processing module 1004-4 The PCM bearer processing module 1004-1 connects the PCM time slot to the associated switching network board; the ATM bearer processing module 1004-2 is configured to process the ATM bearer on the TDM; and the IP bearer processing module 1004-3 is configured to process the TDM.
  • the IP bearer is used; the TDM interface processing module 1004-4 is configured to send data to and receive data from the bearer network, that is, as an external communication interface.
  • the bearer processing module in the TDM interface unit 1004 receives the uplink The data is processed in advance, and then the TDM interface processing module 1004-4 transmits the processed data to the corresponding TDM time slot for transmission. For example, the data sent from the LTE protocol processing unit 1002, the data will be firstly processed in the IP bearer processing module 1004-3 in the interface unit, and the IP bearer processing module 1004-3 performs packet processing on the data, and adds data.
  • the processing of the uplink data sent by the remaining protocol processing units is the same as that, and will not be described again.
  • the TDM interface processing module 1004-4 identifies the transmission bearer of the received downlink data according to the slot number (the downlink data sent by different upper nodes uses different time slots, and their slot numbers are different), and then Send to the corresponding bearer processing module for processing. For example, if the downlink data is an IP data packet sent to the LTE protocol processing module, the TDM interface processing module 1004-4 distinguishes the IP data packet transmitted on the time slot according to the time slot number, and sends the information flow on the time slot. In the IP bearer processing module 1004-3, the link layer of the IP bearer processing module 1004-3 completes the reorganization of the link layer, recovers the IP data packet, and then the destination IP address or source IP in the IP data packet. The address is determined to require the packet to be sent to the LTE protocol processing unit.
  • the structure of the multimode base station shown in FIG. 10B can be evolved into the multimode base station shown in FIG. 10C, the main difference being shown in FIG. 10C.
  • the function of the bearer processing module is completed by the protocol processing unit in the multi-mode base station, and the rest of the processing is the same as that of FIG. 10B, and details are not described herein again.
  • a variation of the multimode base station shown in FIG. 10B and FIG. 10C is that the TDM interface unit is independently set up with a plurality of protocol processing units, that is, the TDM interface unit exists as a separate device, and multiple protocol processing units in the multimode base station The interaction between the data is performed through the communication interface, and the processing of the data is the same as the multi-mode base station shown in FIG. 10B and FIG. 10C.
  • the protocol conversion is provided by setting an interface conversion device in front of the upper node.
  • the interface conversion device cooperates with the interface unit in the multimode base station, and first separates the transmission bearer according to the configuration of the time slot, and then for each The transmission lifetime L forwards the corresponding data to the corresponding superior node, so that the upper node can match the protocol to parse the uplink data.
  • the interface conversion apparatus can adopt the structure shown in FIG. 8, and the processing of the protocol is the same as the foregoing.
  • a data link layer protocol is provided between the interface unit and the upper node to provide segmentation and reassembly of the frame data to carry IP layer data;
  • the link layer protocol may be The PPP protocol or the HDLC protocol can also be other data link layer protocols.
  • the protocol stack is shown in FIG.
  • the source IP address or the destination IP address can be used to distinguish these protocol processing units.
  • the distinguishing method is the same as the foregoing method of using IP bearers. Let me repeat.
  • the processing function of the ATM protocol stack is provided between the interface unit and the upper node, and the protocol stack of the time slot providing the ATM link is as shown in FIG.
  • FIG. 13 shows an example of a network system for transmitting data between a multimode base station and a higher-level node using a TDM transmission network in this embodiment.
  • the TDM is used as the unified physical layer bearer between the multi-mode base station 130 and the independent interface switching device 132.
  • the interface conversion device 132 and the upper-level node 133 are between the PCM bearers, and the interface between the interface switching device 132 and the upper node 134 is an ATM.
  • the transmission bearer, the interface conversion device 132 and the upper node 135 are IP transmission bearers.
  • the function of the interface conversion device 132 includes: identifying the corresponding data stream type according to the configuration, and sending various data streams to the corresponding protocol stack for processing; for the IP data stream, implementing the link layer on the interface conversion device Protocol function, recovering IP packets through the link layer protocol; for IP packets, according to their purpose
  • the end IP address sends the data packet to the corresponding superior node; for the ATM data stream, it will be forwarded directly to the corresponding node; for the PCM data stream, the time slot is switched to the corresponding node.
  • the association relationship established between the interface conversion device 132 and the multimode base station 130 includes: configuring the same data to specify time slot resources for PCM transmission, ATM transmission, and IP transmission, respectively; for IP transmission, in the multimode base station 130 and A data link layer is established between the interface switching devices 132 to carry the IP layer protocol.
  • the network architecture of the independent interface conversion device can not only provide the ATM transmission bearer, but also does not need to make any changes to the peer node.
  • the interface conversion device 132 of Fig. 13 can be disposed in one of the upper nodes.
  • the interface conversion device 132 is disposed in the upper node 133, and the upper node 134, 135 is connected to the upper node 133.
  • the interface conversion device 132 and the upper nodes, 133, 134, 135 can be disposed within the same physical entity.
  • FIG. 14 shows an example of a network structure in which a multimode base station and its upper node use microwave as a TDM transmission bearer to transmit data in this embodiment. Since it is difficult to lay ground circuits such as optical fibers or E1 lines in many cases, it is necessary to use microwaves as relay transmissions in some application scenarios.
  • E1 can be used for short-distance transmission from the multi-mode base station to the microwave transceiver station, and between the microwave transceiver station and the interface conversion device, and microwave transmission is used between the ⁇ : wave transceiver stations. . If the middle section of the microwave transmission is opened, it is substantially the same as that shown in Fig. 13 only from the transmitting and receiving ends of the multimode base station and the interface switching device.
  • the TDM transmission network is used as a unified access bearer between the multi-mode base station and its upper-level nodes, which can reuse existing transmission resources and provide a good synchronization function by using the TDM system.
  • support for multiple bearer modes can be provided, even without any changes to the node 4 (such as when using a separate interface conversion device).
  • Fig. 15A shows an example of a network system for transmitting data between the multimode base station and its upper node in the ATM transmission network in this embodiment.
  • the ATM is used as a unified physical layer bearer; the interface switching device 152 performs protocol conversion between different transport bearers.
  • the interface switching device 152 and the upper node 153 is a PCM bearer voice
  • the interface switching device 152 and the upper node 154 are ATM transport bearers
  • the interface switching device 152 and the upper node 155 are IP transport bearers.
  • Fig. 15B shows a structure of the multimode base station 150 in this embodiment, which includes a GSM protocol processing unit 1500, a UMTS protocol processing unit 1501, an LTE protocol processing unit 1502, a WiMAX protocol processing unit 1503, and an ATM interface unit 1504.
  • GSM protocol processing unit 1500 GSM protocol processing unit 1500
  • UMTS protocol processing unit 1501 UMTS protocol processing unit 1501
  • LTE protocol processing unit 1502 LTE protocol processing unit 1502
  • WiMAX protocol processing unit 1503 a WiMAX protocol processing unit 1503
  • other multi-mode base stations 150 may also include other possible protocol processing units.
  • the functions of the respective protocol processing units are the same as those of the protocol processing unit in the aforementioned multimode base station.
  • the user processing data on the bearer layer is transmitted between the protocol processing module and the ATM interface unit 1504 in the multi-module base station 150.
  • the interface unit 1504 includes a PCM bearer processing module 1504-1, an ATM bearer processing module 1504-2, and an IP bearer processing. Module 1504-3 and ATM interface processing module 1504-4.
  • the PCM bearer processing module 1504-1 is configured to process the PCM bearer on the ATM; the ATM bearer processing module 1504-2 directly forwards the data to the ATM interface processing module 1504-4; and the IP bearer processing module 1504-3 is configured to process IP bearer on the ATM;
  • the ATM interface processing module 1504-4 is configured to send data to and receive data from the bearer network.
  • the bearer processing module processes the received data according to the transmission bearer mode, and then transmits the data to the ATM interface processing module, and the ATM interface processing module adds each data frame header.
  • the VPI/VCI value is sent and sent out.
  • Different virtual connections are allocated to data of different protocol processing units, and the virtual connection is composed of a virtual path VP and a virtual channel VC. On a transmission link, the virtual connection is uniquely identified by the values of the VPI and VCI.
  • the IP bearer processing module 1504-3 performs packet processing on the data, and adds the source IP address and the destination IP address of the data packet. Then, the data packet is encapsulated into a link layer frame; after the frame is completed, the data of the frame is sent to the ATM interface processing module 1504-4, and the ATM interface processing module 1504-4 allocates the corresponding virtual link for the data, and sends the data frame header to the bearer network after adding the VPI/VCI value.
  • the ATM interface processing module 1504-4 identifies the transmission bearer mode of the data according to the value of the VPI/VCI of the data frame header, that is, identifies which one of the IP, ATM, and PCM transmission bearers; and then, the ATM The interface processing module 1504-4 sends the data to the corresponding bearer processing module for processing, and then transfers the processing to the corresponding protocol processing unit. For example, if the downlink data is an IP data packet sent to the processing unit of the LTE protocol, the ATM interface processing module 1504-4 distinguishes the IP data packet transmitted on the link according to the value of the VPI/VCI, and then on the link. The data packet is sent to the IP bearer processing module 1504-3.
  • the link layer in the IP bearer processing module 1504-3 completes the reorganization of the link layer, recovers the IP data packet, and then according to the destination IP address or source IP of the IP data packet.
  • the address is determined to be sent to the LTE protocol processing unit 1502.
  • the structure of the multimode base station shown in FIG. 15B can be evolved into the multimode base station shown in FIG. 15C.
  • the transport layer can be transmitted between the protocol processing unit and the interface unit in the multimode base station. Data, can also transfer user data above the transport layer. If the data of the transport layer is transmitted, the main difference is that the function of the bearer processing module is completed by the protocol processing unit in the multimode base station shown in Fig. 15C, and the rest of the processing is the same as that of Fig. 10B. If the user data above the transport layer is transmitted, the received data is adapted by the ATM interface unit to the ATM transport bearer, and the received ATM data is adapted to the user data on the transport layer and then transmitted to the corresponding Protocol processing unit.
  • a variation of the multimode base station shown in FIG. 15B and FIG. 15C is that the ATM interface unit is independently set up with a plurality of protocol processing units, that is, the ATM interface unit exists as an independent device, and multiple protocol processing units in the multimode base station The interaction between the data is performed through the communication interface, and the processing of the data is the same as the multi-mode base station shown in FIG. 10B and FIG. 10C.
  • protocol conversion, interface conversion means 152 and multimode base station are provided by setting interface conversion means 152 in front of the upper node.
  • the transmission bearer mode is first separated according to the configuration of the VPI/VCI, and then the corresponding data is forwarded to the corresponding upper node for each transport bearer, so that the upper node can match the protocol to parse the uplink data.
  • the transport layer protocol in GSM can be adapted to the ATM layer through the AAL2 adaptation layer protocol, as shown in FIG.
  • AAL2 is an ATM adaptation layer protocol.
  • the function of data adaptation is completed.
  • the high-level data structure is represented as an ATM cell, and corresponding operation and management functions are provided.
  • AAL2 is designed for variable bit data transmission and is mainly used to transmit voice services.
  • the implementation of the current transport layer protocol stack framework includes two schemes: an ATM-based transmission technology and an IP-based transmission technology.
  • an IP transmission bearer a data link is provided between the interface unit and the superior node.
  • a layer protocol which provides segmentation and reassembly of frame data to carry IP layer data, as shown in FIG.
  • IP-based transport protocol stack it can be applied to the unified ATM as a transport bearer without any modification.
  • IP Over ATM technology can be used for protocol stack migration, and the ATM adaptation layer is coordinated.
  • SAR split and assemble cells.
  • CS provides a unified interface for high-level applications.
  • the protocol stack is shown in Figure 18.
  • IP technology is used as the network layer technology at the network layer, so reference can be made to the implementation method in WCDMA.
  • IP data is adapted to the ATM transport bearer by IP Over ATM technology.
  • the transport protocol stack is shown in Figure 18.
  • the user traffic and signaling data on the interface in the WiMAX system are all packet data packets of the IP technology, so IP technology is used as the network at the network layer. Layer technology, so the IP over ATM technology can be used to adapt the IP data to the ATM transport bearer by referring to the implementation method in WCDMA.
  • the transport protocol stack can be seen in FIG. 18.
  • the physical layer technology adopts traditional circuit transmission technology, such as: T1/E1, DS0 link, or higher rate T3, OC3 Etc.
  • the data transmission layer uses the nickname signaling system or ATM technology.
  • the user service data is packet data packets based on IP technology, so the interfaces in the packet domain use IP technology as the network layer technology.
  • the transport protocol stack can be directly carried on ATM technology without modification, such as A3 and A7 interfaces; for packet domain interfaces using IP technology, such as A8, A9, A10, All, etc., IP over ATM technology can be used to adapt IP data to the ATM transport bearer.
  • IP over ATM technology can be used to adapt IP data to the ATM transport bearer.
  • the transport protocol stack can refer to FIG. 18.
  • the circuit domain interface of the No. 7 signaling system is adopted, and the following signaling protocol stack can be used:
  • the corresponding protocol stack is converted into an A1 interface protocol stack based on ATM transmission.
  • ATM is used to carry A1 interface signaling
  • the processing function of the ATM protocol stack is provided between the interface unit and the upper node, and the protocol stack is as shown in FIG.
  • the protocol stack is converted to an A2 interface protocol stack based on ATM transmission.
  • ATM is used to carry PCM voice information
  • the processing function of the ATM protocol stack is provided between the interface unit and the upper node.
  • the main functions of the ATM layer are general flow control, cell multiplexing and switching, and generation of cell headers. extract.
  • the ATM Adaptation Layer (AAL) is further divided into a Disassembly Sublayer (SAR) and a Convergence Sublayer (CS).
  • SAR Disassembly Sublayer
  • CS Convergence Sublayer
  • the main function of SAR is to split and assemble cells.
  • CS provides a unified interface for high-level applications.
  • the protocol stack is shown in Figure 20.
  • the transport layer for the A5 interface (the interface of the circuit type data service between the BS and the MSC) can use a transport protocol stack structure similar to the A2 interface.
  • the interface conversion device 152 of Fig. 15A it can be placed in one of the upper nodes.
  • the interface conversion means 152 is disposed in the upper node 153, and the upper nodes 154, 155 are connected to the upper node 153.
  • the interface conversion device 152 and the upper nodes, 153, 154, 155 can be disposed within the same physical entity.
  • the implementation is the same as the foregoing, and will not be described again.
  • the ATM transmission network is used as a unified access bearer between the multi-mode base station and its upper-level nodes, which can reuse existing transmission resources and fully utilize ATM as a transmission bearer for broadband and quality of service guarantee.
  • the present invention is not limited thereto, and is equally applicable to other emerging access systems, such as AIE.
  • the transport bearer is not limited to the TDM transport bearer, the ATM transport bearer, and the IP transport bearer, and is equally applicable to other emerging transport bearers, and the implementation manner is the same as the above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé pour unifier un accès radio, le procédé impliquant : un poste de base multimode supportant plusieurs normes d'accès radio dans un réseau d'accès radio qui accède à un équipement utilisateur supportant plusieurs normes d'accès radio au réseau ; les données basées sur les normes d'accès radio multiples sont transmises à travers un réseau porteur de transmission entre le poste de base multimode et d'autres nœuds de réseau. Un poste de base multimode est également décrit, le poste de base impliquant : plusieurs unités de traitement de protocole qui sont utilisées pour traiter les données sur la base de différentes normes d'accès radio respectivement ; une unité d'interface qui est utilisée pour traiter les données fournies en sortie depuis les unités de gestion de protocole multiples selon le protocole porteur de transmission supporté par le réseau de transmission et pour effectuer une transmission au réseau de transmission et pour recevoir et gérer les données reçues depuis le réseau de transmission et effectuer une transmission à l'unité de gestion de protocole correspondante. La présente invention concerne également un système de réseau radio.
PCT/CN2008/000134 2007-01-19 2008-01-18 Procédé, dispositif et système de réseau radio pour une unification d'accès radio WO2008089660A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007100066189A CN101227708A (zh) 2007-01-19 2007-01-19 统一无线接入的方法、装置及无线网络系统
CN200710006618.9 2007-01-19

Publications (1)

Publication Number Publication Date
WO2008089660A1 true WO2008089660A1 (fr) 2008-07-31

Family

ID=39644111

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/000134 WO2008089660A1 (fr) 2007-01-19 2008-01-18 Procédé, dispositif et système de réseau radio pour une unification d'accès radio

Country Status (2)

Country Link
CN (1) CN101227708A (fr)
WO (1) WO2008089660A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9439047B2 (en) 2011-10-26 2016-09-06 Intel Corporation Method for paging-based delgate indication for M2M group

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101399774B (zh) * 2008-10-24 2012-07-04 华为技术有限公司 一种分组数据的处理方法和系统
EP2415323A4 (fr) 2009-04-03 2012-08-15 Huawei Tech Co Ltd Partage de station de base
CN102450046A (zh) * 2009-06-03 2012-05-09 华为技术有限公司 拥有多个逻辑基站的基站
WO2011097810A1 (fr) * 2010-02-11 2011-08-18 上海贝尔股份有限公司 Procédé et appareil permettant à un équipement formant terminal d'utilisateur d'accéder à un équipement de réseau
US8804616B2 (en) * 2010-06-15 2014-08-12 Telefonaktiebolaget Lm Ericsson (Publ) Signaling mechanism for inter-RAT carrier aggregation
CN102299938B (zh) * 2010-06-23 2014-08-13 中兴通讯股份有限公司 一种多核多制式统一平台的实现方法及装置
CN102387507B (zh) * 2010-09-01 2016-06-29 中兴通讯股份有限公司 一种多模共传输时传输资源的管理方法和装置
CN102573104B (zh) * 2010-12-20 2015-04-15 大唐移动通信设备有限公司 一种无线数据接入方法及设备
CN102651877B (zh) * 2011-02-24 2015-07-29 上海华为技术有限公司 一种多模设备数据管理方法及多模设备
CN102917354B (zh) 2011-08-03 2018-04-13 中兴通讯股份有限公司 一种接入方法、系统及移动智能接入点
CN106792854B (zh) 2011-09-21 2020-10-09 华为技术有限公司 多模基站的告警方法、多模基站、和通讯系统
CN103188743B (zh) * 2011-12-29 2016-07-06 华为技术有限公司 无线通信装置和系统
CN103841623A (zh) * 2012-11-26 2014-06-04 华为终端有限公司 一种无线局域网接入方法及设备
US20140146691A1 (en) * 2012-11-27 2014-05-29 Qualcomm Incorporated Cooperative measurments in wireless networks
EP3264858B1 (fr) * 2013-04-12 2018-11-14 Huawei Technologies Co., Ltd. Procédé, appareil et système de communication sans fil
GB2520685A (en) * 2013-11-27 2015-06-03 Nordic Semiconductor Asa Integrated circuit radio devices
CN114666380A (zh) * 2022-03-07 2022-06-24 中交信通网络科技有限公司 一种基于集中控制的多制式合一物联网装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1518841A (zh) * 2001-06-19 2004-08-04 ��˹��ŵ�� 利用公共系统时钟的多模式基站的同步
CN1867118A (zh) * 2005-07-29 2006-11-22 华为技术有限公司 多模无线系统
EP1726176A1 (fr) * 2004-03-10 2006-11-29 Motorola, Inc. Extensions du mode de fonctionnement dans des reseaux de communications sans fil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1518841A (zh) * 2001-06-19 2004-08-04 ��˹��ŵ�� 利用公共系统时钟的多模式基站的同步
EP1726176A1 (fr) * 2004-03-10 2006-11-29 Motorola, Inc. Extensions du mode de fonctionnement dans des reseaux de communications sans fil
CN1867118A (zh) * 2005-07-29 2006-11-22 华为技术有限公司 多模无线系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9439047B2 (en) 2011-10-26 2016-09-06 Intel Corporation Method for paging-based delgate indication for M2M group

Also Published As

Publication number Publication date
CN101227708A (zh) 2008-07-23

Similar Documents

Publication Publication Date Title
WO2008089660A1 (fr) Procédé, dispositif et système de réseau radio pour une unification d'accès radio
JP3391291B2 (ja) 光波ネットワークデータ通信方式
US20060198336A1 (en) Deployment of different physical layer protocols in a radio access network
US20070058543A1 (en) ATM over ethernet scheduler
US8611226B2 (en) Method, apparatus and system for equalizing flows
EP1973288A1 (fr) Systeme d'interconnexion de reseau et procede de commande et de prise en charge separees
US6735187B1 (en) Arrangement and method relating to packet data communication and a packet data communication system
JP2010273370A (ja) Ａｔｍネットワークとｉｐネットワークとの間の相互接続装置を提供する方法及び装置
WO2010031324A1 (fr) Procédé, dispositif et système pour la transmission de données
WO2006007793A1 (fr) Procede et appareil prenant en charge l'acces a un terminal pppoa
AU2012400A (en) Packet pipe architecture for access networks
US8619811B2 (en) Apparatus, system and method for forwarding user plane data
EP1728153A1 (fr) Noeud de telecommunication universel presentant une architecture logicielle a protocole echangeable
JP4392023B2 (ja) 通信網用の適応性のある接続キャッシュ
JPH10327138A (ja) 基地無線局と少なくとも１つの移動端末との間でフレーム同期化信号の無線伝送を行う装置
US20050043030A1 (en) Wireless communications system
JP2003143217A (ja) パケット通信システム及びそれに用いるパケット通信方法
WO2005107190A2 (fr) Procede et systeme pour fournir une interface entre un equipement de commutation et un moyen d'interfonctionnement sans fil 2g
WO2012065419A1 (fr) Procédé, système et sous-système logique de traitement en cascade pour mettre en oeuvre une mise en cascade de stations de base
Venken et al. Analysis of the evolution to an IP-based UMTS terrestrial radio access network
WO2005009060A1 (fr) Dispositif de commande de reseau radio de transmission fonde sur une commutation ip
KR100501837B1 (ko) 차세대 네트워크에서의 이동통신 서비스 제어 시스템 및방법, 그 프로그램이 저장된 기록매체
WO2006121399A2 (fr) Unite de passerelle de transmission pour noeud pico b
US7535894B2 (en) System and method for a communication network
WO2008095394A1 (fr) Procédé et dispositif de transmission et de réception de données entre un contrôleur de réseau radio et un noeud de station

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08700683

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08700683

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 201011276

Country of ref document: CR

Ref document number: CR2010-011276

Country of ref document: CR