WO2012006832A1

WO2012006832A1 - Terminal mode processing method, network access method and base station

Info

Publication number: WO2012006832A1
Application number: PCT/CN2010/077971
Authority: WO
Inventors: 鲁照华; 方惠英; 陈琳; 刘扬; 曲红云; 谢峰
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-07-14
Filing date: 2010-10-21
Publication date: 2012-01-19
Also published as: CN102340843A; CN102340843B

Abstract

A terminal mode processing method, a network access method and a base station are disclosed in the present invention. The terminal mode processing method includes that: a first base station using a first mode sends control information for indicating a multi-mode terminal to implement a second mode operation to the multi-mode terminal using the first mode (S102); the multi-mode terminal implements the second mode operation according to the control information (S104). The technical solution provided in the present invention significantly improves adaptability of the wireless communication system to a practical environment and ameliorates service quality and spectrum utilization rate of the wireless communication system.

Description

The present invention relates to the field of communications, and in particular to a terminal mode processing method, a network access method, and a base station. In a wireless communication system, a base station refers to a device that provides a service to a terminal, and the base station communicates with the terminal through an uplink and downlink link, where the downlink (also referred to as a forward link) refers to a direction from the base station to the terminal. The uplink (also known as the reverse link) refers to the direction of the terminal to the base station. Multiple terminals can simultaneously transmit data to the base station through the uplink, or can simultaneously receive data from the base station through the downlink. As an important measure to measure the overall operational efficiency, informatization degree and international competitiveness of a city, urban wireless coverage has attracted more and more attention. The wireless technologies used in urban wireless coverage construction mainly include 802.11, Wideband Code Division Multiple Access (WCDMA), and Evolution Data Only (EV-DO), 802.16. 4G technology, etc., and the carrier's original Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), General Packet Radio Service (General Packet Radio Service) 2G and 2.5G networks, such as GPRS and Enhanced Data Rate for GSM Evolution, provide services for people. How to achieve the convergence of these wireless heterogeneous networks will ultimately be decided. The performance of urban wireless coverage. As the last link in the mobile communication industry chain, terminals play an important role. At present, the coexistence of multiple networks in urban wireless coverage is unlikely to change in a short period of time. Operators will face the integration and transition of multiple standards and many hybrid networks. To achieve the purpose of heterogeneous network convergence, either upgrade the network, or Upgrade the terminal. In the system equipment upgrade, it is necessary to consider the investment problem of the very complicated compatibility with the existing system equipment, and the upgrade is more difficult; for the terminal, the speed of the user to replace the terminal is relatively faster, so the cross-network is realized through the multi-mode terminal. Roaming or multi-mode compatibility will effectively solve the above problems. Multi-mode terminals are compatible with multiple wireless access technologies and will become a basic technology in the field of mobile communications. It will be the third generation (3rd Generation, 3G for short). The development of the latter 3G and even the entire mobile communication has far-reaching effects. In the single mode mode of operation, for example, when a single mode terminal supporting the WCDMA standard enters the base station BS-A of the wireless communication system using the WCDMA technology, the BS-A determines whether to allow the single mode terminal to perform subsequent entry according to factors such as load conditions. The flow, if not allowed, the BS-A may recommend that the terminal enter other neighboring base stations that use the WCDMA standard. Considering that the multimode terminal can support the load and service priority of multiple standards and different standard wireless communication networks, the multimode terminal can select different modes when the network enters, and at the same time, select a certain mode in the multimode terminal. After that, it can also choose to enter different base stations. However, the base station in the related art cannot recommend the multimode terminal to select the above different modes and different base stations, so that the flexibility of the multimode terminal mode selection cannot be utilized to improve the performance of the wireless communication system. SUMMARY OF THE INVENTION In view of the above, the present invention provides a mode selection and network entry method for a multimode terminal, which is used to solve the problem that the base station cannot recommend a multimode terminal to select different modes and different base stations, thereby affecting multimode terminal mode selection. The issue of flexibility. In order to achieve the above object, according to an aspect of the present invention, a terminal mode processing method is provided. The terminal mode processing method according to the present invention includes: transmitting, by the first base station in the first mode, control information for instructing the multimode terminal to perform the operation of the second mode to the multimode terminal using the first mode; The terminal performs the operation of the second mode according to the above control information. Further, the operation of the foregoing second mode includes at least one of: turning on the second mode, turning off the second mode, selecting the second base station in the second mode, entering the second base station, and using the information of the second base station. Further, in the process that the multi-mode terminal enters the second base station, the second base station shares the parameter information of the multi-mode terminal with the first base station. Further, the foregoing control information includes at least one of: mode information of the second mode, number of second base stations using the second mode, network service provider information of the second mode, carrier frequency information of the second base station, and The bandwidth information of the second base station, the type of the base station of the second base station, the identifier of the base station of the second base station, the cell identifier of the second base station, the synchronization channel information of the second base station, the medium access control protocol version number of the second mode, and the second mode Prefix length information, business type letter supported by the second mode Interest. Further, the multimode terminal includes at least one of the following: a multimode terminal to be established with a specific service type, a multimode terminal that has established a specific service type, a multimode terminal of a specific user level, and a number of established service flows greater than a certain threshold. The modulo terminal establishes a multimode terminal whose number of service flows is less than a specific threshold. Further, before the first base station sends the control information to the multi-mode terminal, the method further includes: the first base station receiving the request information from the multi-mode terminal, where the request information is used to request to access the first base station or request information And configured to request the first base station to send control information. Further, the first mode and the second mode each include at least one of the following: an Institute of Electrical and Electronics Engineers (IEEE) 802.11, Wideband Code Division Multiple Access (WCDMA), Data Transmission Optimization (EV-DO), IEEE 802.16, Long Term Evolution (LTE), Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA), General Packet Radio Service (GPRS), Enhanced Data Rate GSM Evolution (EDGE), High Speed Packet Access In order to achieve the above object, according to an aspect of the present invention, a network access method is also provided. The network access method according to the present invention includes: using a first base station in a first mode And transmitting the parameter information by using the multimode terminal of the first mode, where the parameter information includes system parameter information of the second base station used by the multimode terminal in accessing the second base station in the second mode; the multimode terminal And accessing the second base station according to the parameter information. Further, the parameter information includes at least one of the following: mode information of the second mode, and adopting the second mode The number of two base stations, the network service provider information of the second mode, the carrier frequency information of the second base station, the bandwidth information of the second base station, the type of the base station of the second base station, the base station identity of the second base station, and the cell identity of the second base station The synchronization channel information of the second base station, the medium access control protocol version number of the second mode, the prefix length information of the second mode, and the service type information supported by the second mode. Further, the multimode terminal includes at least one of the following : A multimode terminal to be established with a specific service type, a multimode terminal with a specific service type established, a multimode terminal with a specific user level, a multimode terminal that establishes a traffic flow number greater than a certain threshold, and the number of established service flows is less than a certain threshold. Multimode terminal. Further, before the first base station sends the parameter information to the multi-mode terminal, the method further includes: the first base station receiving the request information from the multi-mode terminal, where the request information is used to request to access the first base station or request information The first base station is requested to send parameter information. Further, the first mode and the second mode each include at least one of the following: IEEE 802.11, WCDMA, EV-DO, IEEE 802.16, LTE, GSM, CDMA, GPRS, EDGE, HSPA. In order to achieve the above object, according to another aspect of the present invention, a base station is provided. The base station according to the first mode of the present invention includes: a sending module, configured to send, to the multimode terminal using the first mode, control information for instructing the multimode terminal to perform the operation of the second mode. In order to achieve the above object, according to another aspect of the present invention, a base station is also provided. The base station according to the first mode of the present invention includes: a sending module, configured to send parameter information to the multimode terminal in the first mode, where the parameter information includes the multimode terminal in the second mode of accessing System parameter information of the second base station used in the process of the second base station. With the above solution of the present invention, the first base station sends control information for instructing the multi-mode terminal to perform the operation of the second mode to the multi-mode terminal, and the multi-mode terminal performs information interaction with the base station to adapt to the wireless network load, the service quality, and the like. The performance requirements make full use of the mode flexibility of the multimode terminal, significantly improve the adaptability of the wireless communication system to the actual environment, and improve the monthly service quality and spectrum utilization of the wireless communication system. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: FIG. 1 is a flowchart of a terminal mode processing method according to an embodiment of the present invention; FIG. 2 is a flowchart of a network access method according to an embodiment of the present invention; FIG. 3 is a flowchart according to an embodiment of the present invention. FIG. 4 is a structural block diagram 2 of a base station according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. According to an embodiment of the present invention, a terminal mode processing method is provided. 1 is a flowchart of a terminal mode processing method according to an embodiment of the present invention, including the following steps S102 to S104. Step S102: The first base station in the first mode sends control information for instructing the multimode terminal to perform the operation of the second mode to the multimode terminal in the first mode. Step S104: The multimode terminal performs the operation of the second mode according to the control information. In the related art, the base station cannot recommend the multi-mode terminal to select different modes and different base stations. In the embodiment of the present invention, the control message may be used to instruct the multi-mode terminal to perform various operations related to the second mode, thereby adding a multi-mode terminal. The flexibility of mode selection, which significantly improves the adaptability of the wireless communication system to the actual environment, improves the quality of the wireless communication system and the spectrum utilization. It should be noted that the foregoing first base station and the second base station may be different base stations, or may be the same base station. Preferably, the operation of the second mode comprises at least one of: turning on the second mode, turning off the second mode, selecting the second base station in the second mode, entering the second base station, and using the information of the second base station. Preferably, in the process of the multi-mode terminal entering the second base station, the second base station shares the parameter information of the multi-mode terminal with the first base station. Preferably, the control information comprises at least one of: mode information of the second mode, number of second base stations using the second mode, network service provider information of the second mode, carrier frequency information of the second base station, second The bandwidth information of the base station, the type of the base station of the second base station, the base station identifier of the second base station, the cell identifier of the second base station, the synchronization channel information of the second base station, the medium access control protocol version number of the second mode, and the second mode The prefix length information and the service type information supported by the second mode. Preferably, the multimode terminal comprises at least one of: a multimode terminal to be established for a specific service type, a multimode terminal having established a specific service type, a multimode terminal of a specific user level, and a number of established service flows greater than a certain threshold. The modulo terminal establishes a multimode terminal whose number of service flows is less than a specific threshold. Preferably, the first base station receives the arrival before the first base station sends the control information to the multimode terminal. The request information from the multimode terminal, wherein the request information is used to request access to the first base station or the request information is used to request the first base station to send control information. Preferably, the first mode and the second mode each include at least one of the following: IEEE 802.11, WCDMA, EV-DO, IEEE 802.16, LTE, GSM, CDMA, GPRS, EDGE, HSPA. In order to assist in understanding the above embodiments, the preferred embodiment 1 to the preferred embodiment 11 of the present invention are further described below. Preferred Embodiment 1 The base station BS-A in the 802.16 mode transmits control information to the multi-mode terminal MS-A in the 802.16 mode, and the control information includes mode information, and notifies the MS-A to transfer to the LTE mode.

After receiving the control information, the MS-A transfers to the LTE mode and stops using the 802.16 mode. Optionally, the control information includes a terminal identifier of the MS-A or a terminal group identifier where the MS-A is located. Optionally, the MS-A learns that the control information is related to itself by performing an operation on a cyclic redundancy check bit of resource allocation signaling indicating resources used by the control information. The preferred embodiment 2 uses the 802.16 mode base station BS-A to transmit control information to the 802.16 mode multimode terminal MS-A, and the control information includes mode information, and informs the MS-A to enable the LTE mode.

After receiving the control information, the MS-A turns on the LTE mode and continues to use the 802.16 mode. Optionally, the control information includes a terminal identifier of the MS-A or a terminal group identifier where the MS-A is located. Optionally, the MS-A learns that the control information is related to itself by performing an operation on a cyclic redundancy check bit of resource allocation signaling indicating resources used by the control information. Preferably, the base station BS-A in the EV-DO mode transmits control information to the multimode terminal in the EV-DO mode, where the control information includes service type information and mode information, such as real-time service type, LTE. mode. After receiving the control information, the multimode terminal that establishes the real-time service transfers to the LTE mode and stops using the EV-DO mode. Optionally, after receiving the control information, the multimode terminal that is ready to establish a real-time service transfers to the LTE mode, and stops using the EV-DO mode. Preferred Embodiment 4 The base station BS-A in the EV-DO mode transmits control information to the multimode terminal in the EV-DO mode, where the control information includes service type information and mode information, such as a real-time service type and an LTE mode. After receiving the control information, the multimode terminal that establishes the real-time service starts the LTE mode and continues to use the EV-DO mode. Optionally, after receiving the control information, the multimode terminal that is ready to establish a real-time service starts the LTE mode, and continues to use the EV-DO mode. Preferably, the base station BS-A in the WCDMA mode transmits control information to the multimode terminal in the WCDMA mode, where the control information includes service number information and mode information, for example, the number of services is 4, 802.16 mode. After receiving the control information, the multimode terminal that establishes the number of services greater than or equal to 4 is transferred to the 802.16 mode, and stops using the WCDMA mode. Optionally, after receiving the control information, the multimode terminal that establishes the number of services greater than or equal to 4 starts the 802.16 mode, and continues to use the WCDMA mode. Preferably, the base station BS-A in the WCDMA mode transmits control information to the multimode terminal in the WCDMA mode, where the control information includes service number information and mode information, for example, the number of services is 2, 802.16 mode. After receiving the control information, the multimode terminal that establishes the number of services less than or equal to 2 is transferred to 802.16 mode, and stop using WCDMA mode. Optionally, after receiving the control information, the multimode terminal that establishes the number of services less than or equal to 2 starts the 802.16 mode, and continues to use the WCDMA mode. Preferred Embodiment 7 The multi-mode terminal MS-A in the 802.16 mode transmits request information to the base station BS-A in the 802.16 mode, requesting to transfer to the LTE mode.

After receiving the request, the BS-A sends a control message instructing the MS-A to transition to the LTE mode and stop using the 802.16 mode. Preferred Embodiment 8 A multimode terminal of the 802.16 mode is used. The MS-A sends a request message to the base station BS-A in the 802.16 mode, requesting to enable the 802.11 mode.

After receiving the request, BS-A sends control information to instruct MS-A to enable 802.11 mode and continue to use 802.16 mode. Preferred Embodiment 9 A multimode terminal of the 802.16 mode MS-A transmits an access request to the base station BS-A in the 802.16 mode.

BS-A rejects the MS-A access request and sends control information to the MS-A, the control information including one or more other modes (eg LTE, and/or WCDMA, and/or EV-DO, etc.) Base station information, for example, mode information, number of base stations, network service provider information, carrier frequency information, bandwidth information, base station type, base station identity, cell identity, synchronization channel information, media access control protocol version number, prefix length information , supported business type information.

After receiving the control information, the MS-A performs the network entry process by using the other mode base station BS-B described by the control information as its own access base station. Optionally, the base stations BS-A and BS-B can share the parameter information of the MS-A through Backhaul to force the MS-A to enter the BS-B process. Preferred Embodiment 10 The base station BS-A in the LTE mode transmits control information to the multi-mode terminal MS-A (also supporting the 802.16 mode) in the LTE mode, the control information indicating that the MS-A is connected to the 802.16 mode. Base station.

After receiving the control information, the MS-A switches to the 802.16 mode, selects the base station in the 802.16 mode as the access base station, and performs the network entry process. Preferred Embodiment 11 The base station BS-A in the LTE mode transmits control information to the multi-mode terminal MS-A in the LTE mode and the 802.16 mode, the control information instructing the MS-A to turn off the 802.16 mode.

After receiving the control information, the MS-A turns off the 802.16 mode. Optionally, after receiving the control information, the MS-A and the BS-A re-establish the service flow that has been established through the 802.16 mode to ensure continuity of the service. According to an embodiment of the present invention, a network access method is further provided, and FIG. 2 is a flowchart of a network access method according to an embodiment of the present invention, which includes the following steps S202 to S204. Step S202: The first base station in the first mode sends the parameter information to the multimode terminal in the first mode, where the parameter information includes the multimode terminal used in the process of accessing the second base station in the second mode. System parameter information of the second base station. Step S204: The multimode terminal accesses the second base station according to the parameter information. In the related art, the base station cannot recommend the multi-mode terminal to select different base stations. In the embodiment of the present invention, the parameter message includes system parameter information of the second base station used by the multi-mode terminal in the process of entering the second base station in the second mode. Therefore, the flexibility of the multimode terminal to access different base stations is increased, thereby significantly improving the adaptability of the wireless communication system to the actual environment, and improving the service quality and spectrum utilization of the wireless communication system. It should be noted that the foregoing first base station and the second base station may be different base stations, or may be the same base station. Preferably, the parameter information includes at least one of: mode information of the second mode, number of second base stations using the second mode, network service provider information of the second mode, carrier frequency of the second base station Information, bandwidth information of the second base station, type of base station of the second base station, base station identity of the second base station, cell identity of the second base station, synchronization channel information of the second base station, media access control protocol version number of the second mode, The prefix length information of the second mode and the service type information supported by the second mode. Preferably, the multimode terminal comprises at least one of: a multimode terminal to be established for a specific service type, a multimode terminal having established a specific service type, a multimode terminal of a specific user level, and a number of established service flows greater than a certain threshold. The modulo terminal establishes a multimode terminal whose number of service flows is less than a specific threshold. Preferably, before the first base station sends the parameter information to the multimode terminal, the first base station receives the request information from the multimode terminal, where the request information is used to request access to the first base station or the request information is used to request the first base station. Send parameter information. Preferably, the first mode and the second mode each comprise at least one of the following: IEEE 802.11, WCDMA, EV-DO, IEEE 802.16, LTE, GSM, CDMA, GPRS, EDGE, HSPA. In order to assist in understanding the above embodiments, preferred embodiment 12 to preferred embodiment 13 of the present invention are further described below. Preferred Embodiment 12: The base station BS-A in the LTE mode transmits ingress parameter information to the multimode terminal MS-A (also supporting the 802.16 mode) in the LTE mode, where the ingress parameter information includes the base station in the 802.16 mode. System parameter information, such as mode information, number of base stations, network service provider information, carrier frequency information, bandwidth information, base station type, base station identity, cell identity, synchronization channel information, media access control protocol version number, prefix length information , supported business type information.

After receiving the entry parameter information, the MS-A transfers to the 802.16 mode, and enters the base station in the 802.16 mode described in the parameter information as the access base station, and performs the network entry process. Preferred Embodiment 13 A multimode terminal of the 802.16 mode MS-A transmits an access request to a base station BS-A in an 802.16 mode.

BS-A rejects the access request of MS-A and sends entry parameter information to MS-A, the access parameter information including one or more other modes (eg LTE, and/or WCDMA, and/or EV-DO, etc.) Base station information, such as mode information, number of base stations, network service provider information, Carrier frequency information, bandwidth information, base station type, base station identity, cell identity, synchronization channel information, media access control protocol version number, prefix length information, supported service type information.

After receiving the entry parameter information, the MS-A performs the network entry process by using the base station BS-B of the other mode described in the entry parameter information as its own access base station. Optionally, the base stations BS-A and BS-B can share the parameter information of the MS-A by the Backhaul, so as to "the process of the MS-A entering the BS-B. As described above, by means of the embodiment of the present invention, The technical solution improves the efficiency of the use of frequency resources through effective mode selection and network entry methods of the multimode terminal, and improves the entire wireless communication system (for example, LTE (Long Term Evolution), 802.16, UMB (Ultra Mobile Broadband), 802.11 The performance of a standard wireless communication system. It should be noted that the steps shown in the flowchart of the figures may be performed in a computer system such as a set of computer executable instructions, and although shown in the flowchart The logical sequence, but in some cases, the steps shown or described may be performed in a different order than the ones herein. The embodiments of the present invention provide a base station that can be used to implement the above-described terminal mode processing method. 3 is a structural block diagram of a base station according to an embodiment of the present invention, including a transmitting module 32. The structure thereof will be described in detail below. The base station of the first mode is used to send control information for indicating that the multimode terminal performs the operation of the second mode to the multimode terminal that uses the first mode. The embodiment of the present invention provides a base station, where the base station can Figure 4 is a block diagram 2 of a base station according to an embodiment of the present invention, including a transmitting module 42. The structure of the transmitting module 42 is described in detail below. The transmitting module 42 is located in the first mode. a station, configured to send parameter information to the multimode terminal that uses the first mode, where the parameter information includes system parameter information of the second base station used by the multimode terminal in accessing the second base station in the second mode It should be noted that the base station described in the device embodiment corresponds to the foregoing method embodiment, and the specific implementation process has been described in detail in the method embodiment, and is not further described herein. In the above embodiment of the present invention, the first base station transmits, to the multimode terminal, control information for instructing the multimode terminal to perform the operation of the second mode, the multimode terminal and Station information Interact to adapt to the performance requirements of wireless network load and quality of service, so as to fully utilize the mode flexibility of multi-mode terminals, significantly improve the adaptability of wireless communication systems to the actual environment, and improve the monthly service quality and spectrum utilization of wireless communication systems. . 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 individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A terminal mode processing method, comprising: transmitting, by a first base station in a first mode, to a multimode terminal in the first mode, to instruct the multimode terminal to perform a second mode Control information for operation;

The multimode terminal performs the operation of the second mode according to the control information.

2. The method according to claim 1, wherein the operation of the second mode comprises at least one of:

And turning on the second mode, turning off the second mode, selecting a second base station that uses the second mode, entering the second base station, and using information of the second base station.

The method according to claim 2, wherein, in the process that the multimode terminal enters the second base station, the second base station shares parameters of the multimode terminal with the first base station information.

The method according to claim 1, wherein the control information comprises at least one of the following:

Mode information of the second mode, the number of the second base stations in the second mode, network service provider information in the second mode, carrier frequency information of the second base station, and the The bandwidth information of the second base station, the type of the base station of the second base station, the identifier of the base station of the second base station, the cell identifier of the second base station, the synchronization channel information of the second base station, and the media of the second mode An access control protocol version number, prefix length information of the second mode, and service type information supported by the second mode.

The method according to claim 1, wherein the multimode terminal comprises at least one of the following:

A multimode terminal to be established with a specific service type, a multimode terminal having established the specific service type, a multimode terminal of a specific user level, a multimode terminal establishing a number of service flows greater than a specific threshold, and a location for establishing the service flow A multimode terminal having a quantity less than the specific threshold.

The method according to claim 1, wherein before the first base station sends the control information to the multi-mode terminal, the method further includes: Receiving, by the first base station, request information from the multimode terminal, where the request information is used to request access to the first base station or the request information is used to request the first base station to send the control information.

The method according to any one of claims 1 to 6, wherein the first mode and the second mode each comprise at least one of the following: Institute of Electrical and Electronics Engineers IEEE 802.11, Wideband Code Division Multiple Access WCDMA, Data Transmission Optimized EV-DO, IEEE 802.16, Long Term Evolution LTE, Global System for Mobile Communications GSM, Code Division Multiple Access CDMA, General Packet Radio Service GPRS, Enhanced Data Rate GSM Evolution Technology EDGE, High Speed Packet Connection Into HSPA.

A network access method, comprising: transmitting, by a first base station in a first mode, parameter information to a multimode terminal in the first mode, where the parameter information includes the multiple System parameter information of the second base station used by the modulo terminal in the process of accessing the second base station in the second mode;

The multimode terminal accesses the second base station according to the parameter information.

9. The method according to claim 8, wherein the parameter information comprises at least one of the following:

10. The method according to claim 8, wherein the multimode terminal comprises at least one of the following:

The method according to claim 8, wherein before the first base station sends the parameter information to the multi-mode terminal, the method further includes: Receiving, by the first base station, request information from the multimode terminal, where the request information is used to request access to the first base station, or the request information is used to request the first base station to send the parameter information.

The method according to any one of claims 8 to 11, wherein the first mode and the second mode each comprise at least one of the following: Institute of Electrical and Electronics Engineers IEEE 802.11, Wideband Code Division Multiple Access WCDMA, Data Transmission Optimized EV-DO, IEEE 802.16, Long Term Evolution LTE, Global System for Mobile Communications GSM, Code Division Multiple Access CDMA, General Packet Radio Service GPRS, Enhanced Data Rate GSM Evolution Technology EDGE, High Speed Packet Connection Into HSPA.

13. A base station, using a first mode, characterized by comprising:

And a sending module, configured to send, to the multimode terminal that uses the first mode, control information for instructing the multimode terminal to perform an operation of the second mode.

14. A base station, using a first mode, comprising:

a sending module, configured to send parameter information to the multimode terminal that uses the first mode, where the parameter information includes used by the multimode terminal in accessing the second base station in the second mode System parameter information of the second base station.