WO2013071745A1

WO2013071745A1 - Control method and system based on multimode radio access network

Info

Publication number: WO2013071745A1
Application number: PCT/CN2012/076774
Authority: WO
Inventors: 阮象华
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-11-15
Filing date: 2012-06-12
Publication date: 2013-05-23
Also published as: CN103108368A

Abstract

A control method and system based on a multimode radio access network. The method comprises: connecting a 2G network chip in a mobile terminal into a multimode controller through a first base transceiver station BTS, and connecting a 3G network chip in the mobile terminal into the multimode controller through a second base transceiver station NODEB; and the multimode controller establishing connection with a core network through an Iu-ps interface, so that the core network allocates a unified IP address for the mobile terminal through the multimode controller. This solution can improve the user packet domain data throughput when multiple modes are adopted in parallel.

Description

Control method and system based on multimode wireless access network

Technical field

The present invention relates to the field of communications, and in particular, to a control method and system based on a multimode radio access network. Background technique

In the GPRS (General Packet Radio Service, 2G) system, the base station controller (Base Station Control, or BSC for short) and the core network (Core Network) are used in the Gb interface, and the UMTS ( Universal Mobile Telecommunication System (Universal Mobile Telecommunication System) and TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) system (hereinafter referred to as 3G), Radio Network Controller (Radio Network Controller, referred to as RNC) and the core network packet domain use the Iu-ps interface; when the user switches from the 2G network to the 3G network, or from the 3G network to the 2G network, the link between the controller and the core network needs to be re-established, resulting in loss of service data. Data retransmission between standards is required, and wasting transmission bandwidth also reduces the user experience.

With the development of the wireless access technology, the 2G and 3G access devices are gradually merging to form a Multi-Mode Radio Access Network (MultiRAN). The BSC and the RNC are physically merged into a single network element, that is, multi-mode. The controller; 2G and 3G base station systems are gradually merged into multi-mode base stations. The deep integration of 2G and 3G access networks provides the basis for improving the efficiency of the packet domain.

In terms of user equipment (UE, User Equipment), with the increasing integration of handheld devices and the development of battery technology, it is becoming more and more a trend to support multi-standard wireless access methods on user devices and even support multi-system parallel work.

However, if the packet data of the wireless inter-system packet domain existing in the prior art cannot be uniformly scheduled without changing the terminal protocol stack, the problem of smooth handover cannot be achieved, and the solution of the prior art described above is provided. Summary of the invention The main object of the present invention is to provide a control method and system based on a multi-mode radio access network, so as to solve the problem that the packet domain data in the wireless system cannot be uniformly scheduled in the prior art, and the smooth handover cannot be achieved.

In order to achieve the above object, according to an aspect of the present invention, a control system based on a multimode wireless access network is provided.

The multi-mode radio access network-based control system according to the present invention includes: a mobile terminal, which is configured to: include a 2G network chip and a 3G network chip, and the 2G network chip and the 3G network chip are simultaneously online; the multi-mode controller, the setting thereof To: establish two-way communication with the 2G network chip through the first base transceiver station BTS, and establish two-way communication with the 3G network chip through the second base transceiver station NODEB; the core network is set as: through the Iu-ps interface and the multi-mode controller Connect, and assign a unified IP address to the mobile terminal through the multimode controller.

Preferably, the multimode controller is configured to: send the 2G or 3G network signaling received by the core network to the mobile terminal through the BTS and the NODEB at the IP layer according to one or more traffic separation policies.

Preferably, the multimode controller communicates with the core network in accordance with the 3G RANAP protocol.

Preferably, the mobile terminal is configured to: send the generated communication data to the multi-mode controller through the BTS and the NODEB, respectively, and the multi-mode controller is configured to: after the communication data is aggregated at the application IP layer, forwarded to the core network through the Iu-ps interface .

In order to achieve the above object, according to another aspect of the present invention, a control system based on a multimode wireless access network is provided.

The multi-mode radio access network-based control system according to the present invention includes: a mobile terminal configured to: include a network chip; a multi-mode controller configured to: pass through the first base transceiver station BTS or the second base transceiver station NODEB establishes two-way communication with the network chip; the core network is set to: connect to the multimode controller through the Iu-ps interface, and assign a unified IP address to the mobile terminal through the multimode controller.

Preferably, the mobile terminal is configured to: switch the multimode controller to link with the NODEB while switching from the 2G network to the 3G network while retaining the link of the multimode controller to the core network.

Preferably, the mobile terminal is configured to: switch the multimode controller to link with the BTS while switching from the 3G network to the 2G network while retaining the link of the multimode controller to the core network. In order to achieve the above object, according to still another aspect of the present invention, a control method based on a multimode radio access network is provided.

The control method based on the multimode radio access network according to the present invention includes: connecting a 2G network chip in the mobile terminal to the multimode controller through the first base transceiver station BTS, and passing the 3G network chip in the mobile terminal through the second The base transceiver station NODEB accesses the multimode controller; the multimode controller establishes a connection with the core network through the Iu-ps interface, so that the core network allocates a unified IP address to the mobile terminal through the multimode controller.

Preferably, after the multimode controller establishes a connection with the core network through the Iu-ps interface, the method further includes: the multimode controller receiving the 2G or 3G network of the core network at the IP layer according to one or more traffic separation policies. The signaling is sent to the mobile terminal through the BTS and the NODEB, respectively.

Preferably, after the multimode controller establishes a connection with the core network through the Iu-ps interface, the method further includes: the mobile terminal sends the generated communication data to the multimode controller through the BTS and the NODEB, respectively, and the multimode controller sends the communication data at After the application IP layer is aggregated, it is forwarded to the core network through the Iu-ps interface.

In order to achieve the above object, according to still another aspect of the present invention, a control method based on a multimode wireless access network is provided.

The multi-mode radio access network-based control method according to the present invention includes: accessing a network chip in a mobile terminal to a multi-mode controller through a first base transceiver station BTS or a second base transceiver station NODEB, wherein the network chip supports a 2G network And the 3G network; the multimode controller establishes a connection with the core network through the Iu-ps interface, so that the core network allocates a unified IP address to the mobile terminal through the multimode controller.

Preferably, after the multimode controller establishes a connection with the core network through the Iu-ps interface, the method further includes: when the mobile terminal switches from the 2G network to the 3G network, the dual mode mobile terminal switches the multimode controller to NODEB link, while retaining the link between the multimode controller and the core network.

Preferably, after the multimode controller establishes a connection with the core network through the Iu-ps interface, the method further includes: when the mobile terminal switches from the 3G network to the 2G network, the dual mode mobile terminal switches the multimode controller to BTS link, while retaining the link between the multimode controller and the core network.

In the embodiment of the present invention, the 2G network chip in the mobile terminal is connected to the multimode controller through the first base transceiver station BTS, and the 3G network chip in the mobile terminal is transmitted through the second base transceiver station. The NODEB is connected to the multimode controller; the multimode controller establishes a connection with the core network through the Iu-ps interface, so that the core network allocates a unified IP address to the mobile terminal through the multimode controller, and accesses the device through the multimode access device. Deep integration solves the problem that the packet data in the wireless system cannot be uniformly scheduled in the prior art, and the problem of smooth handover cannot be achieved, thereby achieving the effect of improving the data throughput of the user packet domain in the case of multi-standard parallel operation. . BRIEF abstract

The drawings are intended to provide a further understanding of the invention, and are intended to be illustrative of the invention. In the drawing:

1 is a schematic diagram showing the structure of a control system based on a multimode radio access network according to Embodiment 1 of the present invention;

2 is a flowchart of a control method based on a multimode radio access network according to the embodiment shown in FIG. 1. FIG. 3 is a schematic structural diagram of a control system based on a multimode radio access network according to Embodiment 2 of the present invention;

4 is a flowchart of a control method based on a multimode radio access network according to the embodiment shown in FIG. 2. FIG. 5 is a schematic structural diagram of a media plane protocol stack according to the embodiment shown in FIG. 1-4 of the present invention; A schematic diagram of a control plane protocol stack structure of the embodiment shown in Figures 1-4 of the present invention. Preferred embodiment of the invention

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention provides a control method and system based on a multimode radio access network.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram showing the construction of a control system based on a multimode radio access network according to a first embodiment of the present invention.

As shown in FIG. 1, the system includes: a mobile terminal, including a 2G network chip and a 3G network chip. The 2G network chip and the 3G network chip are simultaneously online; the multi-mode controller establishes two-way communication with the 2G network chip through the first base transceiver station BTS, and establishes two-way communication with the 3G network chip through the second base transceiver station NODEB; The multi-mode controller is connected through the Iu-ps interface, and the mobile terminal is assigned a uniform IP address through the multi-mode controller.

The foregoing embodiment of the present application overcomes the problem that the packet data in the wireless system cannot be uniformly scheduled and cannot be smoothly switched through the deep convergence of the multi-mode access device system without changing the terminal protocol stack. , to improve the user packet domain data throughput in the case of multi-standard parallel work. The mobile terminal in the embodiment shown in FIG. 1 may be a dual mode dual standby mobile terminal, but is not limited thereto, and may also be a multimode multi-standby mobile terminal.

During the implementation of the foregoing embodiment of the present application, the multimode controller sends the 2G or 3G network signaling received by the core network to the mobile terminal through the BTS and the NODEB in the IP layer according to one or more traffic separation policies. And the multimode controller and the core network communicate in accordance with the 3G RANAP protocol.

At the same time, the dual-mode dual-standby mobile terminal transmits the generated communication data to the multi-mode controller through the BTS and the NODEB, respectively, and the multi-mode controller aggregates the communication data at the application IP layer, and then forwards the communication data to the core network through the Iu-ps interface.

2 is a flow chart of a control method based on a multimode radio access network according to the embodiment shown in FIG. 1. As shown in FIG. 2, the first embodiment can be applied to a scenario where 2G and 3G are covered networks, and dual-mode dual-standby mobile terminals are used. In order to obtain higher packet domain data throughput, users simultaneously access 2G and The 3G network, its implementation steps are as follows:

Step S102: The 2G network chip in the mobile terminal is connected to the multimode controller through the first base transceiver station BTS, and the 3G network chip in the mobile terminal is connected to the multimode controller through the second base transceiver station NODEB.

Step S104: The multimode controller establishes a connection with the core network through the Iu-ps interface, so that the core network allocates a unified IP address to the mobile terminal through the multimode controller.

The above steps are combined with the schematic diagram of the system structure shown in FIG. 1 to show that the mobile terminals respectively pass

The BTS and NODEB are connected to the multimode controller, and after the multimode controller establishes a link with the core network through the IU-PS interface, the core network allocates a unified IP address to the dual mode dual standby mobile terminal through the multimode controller. The mobile terminal in the embodiment shown in FIG. 2 may be a dual mode dual standby mobile terminal, but not Limited to this, it can also be a multi-mode multi-standby mobile terminal.

Preferably, after the multimode controller establishes a connection with the core network through the Iu-ps interface, when the user acquires communication data in the downlink direction, the multimode controller receives the core network at the IP layer according to one or more traffic separation policies. The 2G or 3G network signaling is sent to the dual mode dual standby mobile terminal through the BTS and the NODEB, respectively. The traffic separation policy used may include, but is not limited to, the following policies: traffic distribution by service type, traffic distribution according to QOS level, and fair distribution by traffic ratio, and downlink air interface signaling, whether it is 2G or 3G network signaling, The multimode controller communicates with the core network in accordance with the 3G RANAP (Radio Access Network Application Part) protocol. If it is sent to the 2G network, the multimode controller performs multiplexing at the SNDCP protocol layer.

Preferably, after the multimode controller establishes a connection with the core network through the Iu-ps interface, when the user transmits the communication data in the uplink direction, the dual mode dual standby mobile terminal transmits the generated communication data to the multimode through the BTS and the NODEB, respectively. The controller, the multimode controller, aggregates the communication data at the application IP layer, and forwards it to the core network through the Iu-ps interface.

Figure 3 is a block diagram showing the structure of a control system based on a multimode radio access network according to a second embodiment of the present invention.

As shown in FIG. 3, the system includes: a mobile terminal, including a network chip, configured to support a 2G network and a 3G network; and a multi-mode controller, established by the first base transceiver station BTS or the second base transceiver station NODEB and the network chip Two-way communication; the core network is connected to the multimode controller through the Iu-ps interface, and the mobile terminal is assigned a uniform IP address through the multimode controller.

In the above embodiment, the problem of smooth switching is achieved through the multi-mode access device system without changing the terminal protocol stack, and the method for smooth switching of the packet domain under the multi-mode controller is provided in the case of multi-standard parallel operation. , improved user packet domain data throughput. Specifically, the embodiment relates to the field of wireless communications, and particularly relates to a method for smoothly switching between a second generation mobile communication system and a third generation mobile communication system packet domain system in a multimode wireless access network, which is a second user equipment. When the mobile communication system works in parallel with the packet domain of the third generation mobile communication system, the throughput of the packet data is improved. The mobile terminal in the embodiment shown in FIG. 3 may be a dual mode single standby mobile terminal, but is not limited thereto, and may also be a multimode single standby mobile terminal.

In the implementation process of the foregoing embodiment of the present application, if the mobile terminal switches from the 2G network to the 3G network In the case of a network, the dual-mode mobile terminal switches the multimode controller to link with the NODEB while retaining the link between the multimode controller and the core network; if the mobile terminal switches from the 3G network to the 2G network, the dual mode mobile The terminal switches the multimode controller to link with the BTS while retaining the link between the multimode controller and the core network.

4 is a flow chart of a control method based on a multimode radio access network according to the embodiment shown in FIG. 2. As shown in FIG. 4, the implementation 2 can be applied in a network scenario in which 2G and 3G discontinuous coverage are used, and a dual-mode mobile terminal is used. To obtain a smooth packet domain service, the user is in a 2G and 3G network according to network coverage. Smooth switching, the implementation steps are as follows:

Step S202: The network chip in the mobile terminal is connected to the multimode controller through the first base transceiver station BTS or the second base transceiver station NODEB, wherein the network chip supports the 2G network and the 3G network.

Step S204: The multimode controller establishes a connection with the core network through the Iu-ps interface, so that the core network allocates a unified IP address to the mobile terminal through the multimode controller.

The foregoing embodiment relates to the field of wireless communications, and particularly relates to a method for smoothly switching between a second generation mobile communication system and a third generation mobile communication system packet domain system in a multimode wireless access network, which is a second generation mobile communication of user equipment. When the system works in parallel with the packet domain of the third generation mobile communication system, the throughput of packet data is improved. The mobile terminal in the embodiment shown in FIG. 3 may be a dual mode single standby mobile terminal, but is not limited thereto, and may also be a multimode single standby mobile terminal. Specifically, the foregoing embodiment implements that the dual-mode mobile terminal accesses the multi-mode controller through the BTS or the NODEB according to the network condition of the call-up time, for example, when the dual-mode mobile terminal accesses the multi-mode controller from the BTS, The multimode controller can establish a link with the core network through the IU-PS interface, and then the core network allocates an IP address to the dual mode mobile terminal through the multimode controller, thereby providing the packet domain service to the user by the 2G network.

Preferably, after the multimode controller establishes a connection with the core network through the Iu-ps interface, if the mobile terminal switches from the 2G network to the 3G network, the dual mode mobile terminal switches the multimode controller to link with the NODEB. While retaining the link between the multimode controller and the core network; if the mobile terminal switches from the 3G network to the 2G network, the dual mode mobile terminal switches the multimode controller to link with the BTS while retaining the multimode controller and core. Link to the web.

The specific implementation process is, for example, when the dual-mode mobile terminal moves to the 3G network coverage area, the dual mode The mobile terminal can terminate the link between the BTS and the multimode controller, retain the link between the multimode controller and the core network, and establish a link with the multimode controller through the NODEB, and provide the packet domain service for the user by the 3G network.

The system shown in FIG. Um interface is used between the Uu interface and the 2G system, and the Um interface is used between the user equipment and the multimode radio access network. In addition, the key is that regardless of the 2G system or the 3G system, the multi-mode radio access network and the core network packet domain use the Iu-ps interface uniformly, and when the user equipment accesses the 2G system and the 3G system at the same time, the 2G system and the 3G system share The link between the multimode access network and the core network, when the user equipment switches between the 2G system and the 3G standard packet domain, the link between the multimode access network and the core network remains unchanged.

5 is a schematic structural diagram of a media plane protocol stack according to the embodiment shown in FIG. 1-4 of the present invention; and FIG. 6 is a schematic structural diagram of a control plane protocol stack according to the embodiment shown in FIG.

Specifically, in the specific deployment process, the system can be seen in conjunction with FIG. 5-6. First, whether the 2G system or the 3G system is used, and the Iu-ps interface is uniformly used between the multimode access network and the core network. That is, the media side mainly uses the GTPU protocol, and the control plane mainly uses the RANAP protocol, and details the participation in the 3GPP TS 25.41x series protocol.

Secondly, based on the above deployment, in order to avoid the modification of the user terminal in the 2G system, the SNDCP protocol and the LLC protocol are added to the multi-mode wireless access network 2G protocol stack.

In the above embodiment, the media surface data of the system in the 2G system is multiplexed in the SNDCP layer of the multimode access network, and the air interface signaling interacts with the user terminal in the LLC layer of the multimode access network; the system is in the 3G system. Media plane data and air interface signaling comply with the existing 3GPP TS 25.3xx series of protocols.

Based on the above settings, when the user terminal has the dual mode dual standby capability, when the user accesses the 2G system and the 3G system at the same time, the 2G system and the 3G system share the link between the multimode access network and the core network, and the multimode The access network can be reasonably shunted according to certain policies in 2G and 3G systems to improve packet service throughput. When the user terminal only has dual-mode single-standby capability, when switching between 2G standard and 3G standard packet domain, the controller and The link between the core networks remains unchanged, avoiding packet loss and unnecessary data retransmission caused by the cross-standard handover process, which can effectively improve the network service quality in the cross-system handover. It should be noted that the steps shown in the flowchart of the accompanying drawings of the embodiments of the present invention may be executed in a computer system such as a set of computer executable instructions, and although a logical sequence is shown in the flowchart, In some cases, the steps shown or described may be performed in an order different than that described herein.

From the description of the above embodiments, it can be seen that the present invention achieves the following technical effects: 方法 Using the method and system of the present invention, compared with the prior art, 2G is realized without changing the terminal protocol stack. The multi-mode radio access network of the standard and 3G systems uses the same interface as the packet domain of the core network, achieving the effect of smooth switching across the system. In the multi-system bundle access service, it is convenient to implement reasonable standard data splitting, as a whole. Improve the user experience.

Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into a plurality of integrated circuit modules, or they may be Multiple modules or steps in the fabrication are implemented as a single integrated circuit module. Thus, the invention is not limited to any particular combination of hardware and software.

The above description shows and describes a preferred embodiment of the present invention, but as described above, it should be understood that the present invention is not limited to the forms disclosed herein, and should not be construed as Other combinations, modifications, and environments are possible and can be modified by the teachings or related art or knowledge within the scope of the inventive concept described herein. The modifications and variations of the present invention are intended to be within the scope of the appended claims.

Industrial Applicability The embodiment of the present invention uses a 2G network chip in a mobile terminal to pass through a first base transceiver station.

The BTS accesses the multimode controller, and connects the 3G network chip in the mobile terminal to the multimode controller through the second base transceiver station NODEB; the multimode controller establishes a connection with the core network through the Iu-ps interface, so that the core network The multi-mode controller allocates a unified IP address to the mobile terminal, and through the deep fusion between the multi-mode access device standards, the packet data in the wireless system between the existing technologies is not solved. Can be unified scheduling, can not achieve the problem of smooth switching, and thus achieve the effect of improving the data throughput of the user packet domain in the case of multi-standard parallel operation.

Claims

Claim

1. A control system based on a multimode radio access network, comprising:

a mobile terminal, which is configured to: include a 2G network chip and a 3G network chip, and the 2G network chip and the 3G network chip are online at the same time;

a multi-mode controller, configured to: establish a two-way communication with the 2G network chip through the first base transceiver station BTS, and establish two-way communication with the 3G network chip through the second base transceiver station NODEB;

The core network is configured to: connect to the multimode controller through an Iu-ps interface, and allocate a unified IP address to the mobile terminal by using the multimode controller.

2. The system according to claim 1, wherein the multi-mode controller is configured to: pass the 2G or 3G network signaling received by the core network at an IP layer according to one or more traffic separation policies respectively. The BTS and NODEB are sent to the mobile terminal.

3. The system according to claim 2, wherein the multimode controller communicates with the core network in accordance with a 3G RANAP protocol.

4. The system according to claim 1, wherein the mobile terminal is configured to: send the generated communication data to the multimode controller through a BTS and a NODEB, respectively, the multimode controller being set as: After the communication data is aggregated at the application IP layer, the communication data is forwarded to the core network through the Iu-ps interface.

5. A control system based on a multimode radio access network, comprising:

a mobile terminal, which is configured to: include a network chip;

a multi-mode controller, configured to: establish two-way communication with the network chip by using a first base transceiver station BTS or a second base transceiver station NODEB;

a core network, configured to: connect to the multimode controller through an Iu-ps interface, and pass the The multimode controller assigns a uniform IP address to the mobile terminal.

6. The system according to claim 5, wherein the mobile terminal is configured to: switch the multimode controller to link with the NODEB in the case of switching from the 2G network to the 3G network, while retaining the plurality of A link between the modulo controller and the core network.

7. The system according to claim 5, wherein the mobile terminal is configured to: switch the multimode controller to link with the BTS while switching from the 3G network to the 2G network, while retaining the plurality of A link between the modulo controller and the core network.

8. A control method based on a multimode radio access network, comprising:

The 2G network chip in the mobile terminal is connected to the multimode controller through the first base transceiver station BTS, and the 3G network chip in the mobile terminal is connected to the multimode controller through the second base transceiver station NODEB;

The multimode controller establishes a connection with the core network through the Iu-ps interface, so that the core network allocates a unified IP address to the mobile terminal through the multimode controller.

The method according to claim 8, wherein after the multimode controller establishes a connection with the core network through the Iu-ps interface, the method further includes: the multimode controller according to one or more The traffic separation policy sends the 2G or 3G network signaling received by the core network to the mobile terminal through the BTS and the NODEB at the IP layer.

10. The method according to claim 8, wherein after the multimode controller establishes a connection with the core network through the Iu-ps interface, the method further includes: the mobile terminal respectively transmitting the generated communication data to the BTS And the NODEB is sent to the multimode controller, and the multimode controller forwards the communication data to the core network through an Iu-ps interface after being aggregated at the application IP layer.

11. A control method based on a multimode radio access network, comprising:

The network chip in the mobile terminal is connected to the multimode controller through the first base transceiver station BTS or the second base transceiver station NODEB, wherein the network chip supports the 2G network and the 3G network; The multimode controller establishes a connection with the core network through an Iu-ps interface, so that the core network allocates a unified IP address to the mobile terminal through the multimode controller.

12. The method according to claim 11, wherein after the multimode controller establishes a connection with the core network through the Iu-ps interface, the method further comprises: switching the mobile terminal from the 2G network to the 3G network In the case, the mobile terminal switches the multimode controller to link with the NODEB while retaining the link of the multimode controller with the core network.

13. The method according to claim 11, wherein after the multimode controller establishes a connection with the core network through the Iu-ps interface, the method further comprises: switching the mobile terminal from the 3G network to the 2G network In the case, the mobile terminal switches the multimode controller to link with the BTS while retaining the link of the multimode controller with the core network.