WO2007085172A1

WO2007085172A1 - Method, system and terminal of the terminals with different bandwidth capacity accessing to the radio communication system

Info

Publication number: WO2007085172A1
Application number: PCT/CN2006/003517
Authority: WO
Inventors: Liyan Yin
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2006-01-24
Filing date: 2006-12-21
Publication date: 2007-08-02
Also published as: CN101009906B; CN101009906A

Abstract

A method, system and terminal of the terminals with different bandwidth capacity accessing to the radio communication system. The method includes: the terminal obtains the bandwidth capacity of the frequency used in the precinct of the current wireless communication system network side by the system signaling or predetermining, and processes its bandwidth capacity based on the obtained bandwidth capacity and then accesses the wireless communication system. It ensures that the terminal which fulfils the bandwidth capacity supported by the wireless communication system accesses to the wireless communication system and communicates, and it can avoid the problem that terminal which does not fulfil the bandwidth capacity supported by the wireless communication system accessing to the wireless communication system, and then can not communicating.

Description

Method, system and terminal for terminal access wireless communication system with different bandwidth capabilities

The present invention relates to a technology for a terminal to access a wireless communication system, and more particularly to a method, system and terminal for a terminal having a different bandwidth capability to access a wireless communication system. Background of the invention

The Universal Mobile Telecommunications System (UMTS) is the third generation mobile communication system using Wideband Code Division Multiple Access (WCDMA) air interface technology. With the development of the third generation mobile communication system, in order to use the high-speed wireless access technology such as microwave access global interoperability (WiMAX) in UMTS, to maintain the vitality and competitiveness of the WCDMA/Global System for Mobile Communications (GSM) standard, 3GPP proposes Long Term Evolution (LTE) of UMTS, which mainly studies the evolution of UMTS access networks. Currently, the physical layer of LTE is based on Orthogonal Frequency Division Multiple Access (OFDM) technology.

The LTE system can transmit and receive various messages on the existing frequency band of the UMTS Terrestrial Radio Access Network (UTRAN). Figure 1 is a schematic diagram of the frequency band of the UTRAN, as shown in the figure: The UTRAN has multiple frequency bands, each of which is set with uplink and downlink frequencies. For example, the uplink and downlink frequencies of the frequency band I are 1920-1980 MHz and 2110-2170 MHz, respectively. The network side and terminal of the UTRAN can communicate through each frequency band.

The UTRAN presets a fixed channel bandwidth for each frequency band: 5 MHz, that is, the channel bandwidth supported by each UTRAN band is a fixed 5 MHz bandwidth and the bandwidth of the UTRAN broadcast channel is also 5 MHz. Thus, the UTRAN can only be adapted to have a bandwidth of 5 MHz. The terminal communicates with the network side of the UTRAN, sends and receives messages, and receives broadcast messages through the broadcast channel.

However, according to the design requirements of the LTE system, each frequency band of the LTE system may be required. Supports multiple bandwidth runs with support bandwidths of 1.25MHz, 2.5MHz, 5MHz, 10MHz, 15:\113⁄4 and 20]^2. Accordingly, the LTE system can also satisfy terminals having various bandwidth capabilities to communicate in the system. If the LTE system performs various message transmission and reception on the existing frequency band of the UTRAN, since the UTRAN supports a fixed bandwidth in each frequency band, the design requirements for the communication of the terminal having various bandwidth capabilities in the LTE system cannot be satisfied. For example, the bandwidth of the frequency band used by the network side setting of the LTE system is 1 ΟΜΗζ, and the bandwidth of the used broadcast channel is 5 MHz (the bandwidth of the broadcast channel can be configured by the LTE system as needed), but since the LTE system is already in the UTRAN In the frequency band with fixed bandwidth, various messages are sent and received. Therefore, the bandwidth of the frequency band used by the network side of the LTE system is 5 MHz, and the bandwidth of the used broadcast channel is 5 MHz. Only the terminal with 5 MHz bandwidth can communicate in the system. Terminals with other bandwidth capabilities, such as terminals with 1.25MHz and 2.5MHz bandwidth capabilities, cannot communicate in the LTE system. Even if terminals with other bandwidth capabilities are forcibly connected to the LTE system, terminals with other bandwidth capabilities cannot. Correctly receive various messages sent by the LTE system.

When the above method is used, since the fixed bandwidth of each frequency band is pre-defined, when the terminal is set, the bandwidth capability of the terminal is also set to the specified fixed bandwidth, thereby ensuring that the terminal can access the LTE system. However, this only ensures that terminals with fixed bandwidth capability access the LTE system.

In order to overcome the above method, the LTE system cannot satisfy the communication of terminals with various bandwidth capabilities in the system. When setting the bandwidth of the frequency band, the fixed bandwidth may not be set, and the bandwidth supported by each frequency band is used as the bandwidth of the frequency band. Make settings. As shown in FIG. 2, FIG. 2 is a schematic diagram of a corresponding relationship between a frequency band of a prior art LTE system and a supported bandwidth: the uplink and downlink frequencies of the frequency band I are 1920-1980 MHz and 2110-2170 MHz, respectively, and the supported bandwidth may be 2.5 MHz. 5MHz, 10MHz, 15MHz and 20MHz. Using this method can theoretically enable LTE systems to meet terminals with various bandwidth capabilities to communicate in the system, but In a specific implementation, since only the bandwidth supported by each frequency band is set as the bandwidth of the frequency band, and the bandwidth actually used by the operator in the frequency band is not set, the method only allows the operator to The bandwidth supported by this frequency band, which of the bandwidths supported by the frequency band is used, is also related to the resources actually occupied by the operator in this frequency band. For example, the operator selects the LTE system bandwidth to be 5 MHz according to the resources occupied by the carrier in the frequency band I. In this case, in order for the LTE system to meet the terminal having various bandwidth capabilities to communicate in the system, according to the characteristics of the OFDM technology, It is possible to support terminals with 5MHz, 1.25MHz or 2.5MHz bandwidth capability for communication. However, if the carrier's common control channel bandwidth, such as the broadcast channel bandwidth is 2.5 MHz, it is not possible to support terminal communication with 1.25 MHz bandwidth capability.

When the above method is adopted, although the LTE system can satisfy the terminal having various bandwidth capabilities to communicate in the system, since the common control channel bandwidth selected by the operator or/and the minimum bandwidth of the used frequency band cannot be known in advance, The terminal supports the bandwidth capability, and the terminal cannot know the bandwidth of the common control channel of the LTE system or the minimum bandwidth of the used frequency band, so that terminals with different bandwidth capabilities cannot access the LTE system for communication, or The problem that some terminals that do not satisfy the common control channel bandwidth capability of the LTE system or/and the minimum bandwidth capability of the adopted frequency band cannot communicate after accessing the LTE system. Summary of the invention

The embodiments of the present invention provide a method for a terminal with a different bandwidth capability to access a wireless communication system. The method supports different bandwidth capability systems, and can ensure that a terminal that satisfies the bandwidth capability supported by the wireless communication system accesses the wireless communication system for communication.

The embodiment of the invention further provides a terminal with different bandwidth capability for accessing a wireless communication system, and when the bandwidth capability supported by the terminal satisfies the wireless communication system, the terminal can be guaranteed. The terminal accesses the wireless communication system.

The embodiment of the present invention further provides a system for a terminal with a different bandwidth capability to access a wireless communication system. When the bandwidth capability supported by the terminal satisfies the wireless communication system, the terminal can ensure that the terminal accesses the wireless communication system.

According to the above objective, the technical solution of the embodiment of the present invention is implemented as follows: A method for accessing a wireless communication system with terminals having different bandwidth capabilities, the method includes:

The terminal acquires the bandwidth capability of the frequency band used in the jurisdiction of the network side of the current wireless communication system through system signaling or preset, and accesses the wireless communication system according to the acquired bandwidth capability.

A method of setting a bandwidth of a broadcast channel, the method comprising: setting a bandwidth of a broadcast channel of the wireless communication system to be less than or equal to a minimum bandwidth capability of the used frequency band or less than a minimum supported bandwidth.

A system for accessing a wireless communication system with different bandwidth capabilities, comprising: a network side and a terminal of a wireless communication system, wherein

The terminal obtains the bandwidth capability of the frequency band used by the current LTE network side jurisdiction through system signaling or pre-setting, and communicates with the network side of the wireless communication system according to the acquired bandwidth capability.

A terminal having different bandwidth capabilities for terminal access to a wireless communication system, including a communication module and a parsing module,

The communication module is configured to receive system signaling that carries the minimum bandwidth supported by the frequency band of the wireless communication system or/and the bandwidth of the common control channel, and then sent to the parsing module, where the parsing module is parsed to obtain the frequency band supported by the wireless communication system. The minimum bandwidth or/and the common control channel bandwidth, adjust the bandwidth of its own receiving common control channel or determine that it is higher than or equal to the minimum bandwidth supported by the frequency band used by the wireless communication system or/and the bandwidth of the common control channel. The letter module communicates with the wireless communication system.

A terminal having a different bandwidth capability for accessing a wireless communication system, comprising a communication module and a mapping relationship module, wherein

a mapping relationship module, configured to store a minimum bandwidth of each frequency band used by the wireless communication system or a correspondence between a common control channel bandwidth, and corresponding to a minimum bandwidth corresponding to a frequency band used by the terminal to access the wireless communication system according to the correspondence relationship or And transmitting a common control channel bandwidth to the communication module;

The communication module is configured to communicate with the network side of the wireless communication system by using a minimum bandwidth or/and a common control channel bandwidth corresponding to a frequency band used by the terminal to access the wireless communication system by using the mapping module.

It can be seen from the above solution that the present invention broadcasts the bandwidth capability of the wireless communication system by the wireless communication system through system signaling or in advance, so that terminals with different bandwidth capabilities can obtain the public frequency band of the current region. The control channel bandwidth or the minimum supported channel bandwidth determines whether it can access the wireless communication system or adjust its own bandwidth capability to access the wireless communication system according to its own bandwidth capability. Therefore, the method, system and terminal provided by the invention not only support a system with multiple bandwidths, but also ensure that a terminal that satisfies the bandwidth capability supported by the wireless communication system accesses the wireless communication system for communication, and can avoid not satisfying the wireless communication system. A terminal that supports bandwidth capability accesses to a wireless communication system, thereby failing to communicate. BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic diagram of a frequency band of a prior art UTRAN;

2 is a schematic diagram of a corresponding relationship between a frequency band and a supported bandwidth of a LTE system in the prior art; FIG. 3 is a first embodiment of a method for accessing a wireless communication system with different bandwidth capabilities; 4 is a flowchart of Embodiment 2 of a method for a terminal having a different bandwidth capability to access a wireless communication system according to the present invention;

FIG. 5 is a schematic diagram of a terminal 1 according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a terminal 2 according to an embodiment of the present disclosure;

FIG. 7 is a flowchart of a system according to an embodiment of the present invention. Mode for carrying out the invention

The present invention will be further described in detail below with reference to the accompanying drawings.

In order to ensure that the terminal that supports the bandwidth capability supported by the LTE system accesses the LTE system supporting multiple bandwidths for communication, the terminal needs to obtain the bandwidth capability of the frequency band used by the current LTE system. The present invention proposes two solutions: In the LTE system, the LTE system broadcasts by using system signaling, and the LTE system uses the minimum bandwidth supported by the frequency band or/and the common control channel bandwidth to be sent to the terminal currently under the jurisdiction of the LTE system through system signaling, and the terminal according to the received system signaling. The minimum bandwidth to be carried or/and the bandwidth of the common control channel determine whether the bandwidth capability can access the LTE system: if the bandwidth capability of the system itself is higher than or equal to the minimum bandwidth carried by the system signaling or/and the bandwidth of the common control channel, the judgment may be Accessing the LTE system and accessing the LTE system; if the bandwidth capability of the LTE system is lower than the minimum bandwidth of the system signaling or/and the bandwidth of the common control channel, it is determined that the LTE system cannot be accessed and the LTE system is not connected. In the second scheme, when the LTE system is set, the minimum bandwidth or/and the common control channel bandwidth of each frequency band used by the LTE system are directly set in the network side and the terminal of the LTE system, that is, the frequency band is preset in the network side and the terminal of the LTE system. Corresponding to the minimum bandwidth of the frequency band or the bandwidth of the common control channel, when the terminal is to access the current LTE system, the terminal can obtain the minimum bandwidth or/and corresponding to the frequency band used by the current LTE system according to the relationship saved by the terminal. Common control channel bandwidth, thus based on the minimum bandwidth obtained Or / and the common control channel bandwidth determines whether it has the bandwidth capability to access the LTE system. In the present invention, whether the bandwidth capability of the frequency band is indicated by the system signaling, or the bandwidth capability indicating the frequency band used, the minimum bandwidth or/and the common control channel bandwidth are preset in advance on the network side and the terminal of the LTE system, the indication adopts the frequency band. The bandwidth capability is the minimum bandwidth or/and the common control channel bandwidth, wherein the minimum bandwidth of the adopted frequency band may be the minimum occupied bandwidth of the frequency band or the minimum bandwidth capability of the terminal supported by the frequency band, and the common control channel bandwidth of the adopted frequency band may be wide. ί or the bandwidth occupied by the synchronization channel.

When indicating that the bandwidth capability of the frequency band is the bandwidth occupied by the broadcast channel corresponding to the frequency band, the terminal having the bandwidth capability higher than or equal to the frequency band of the indication uses the above two solutions to obtain the bandwidth capability of the indicated use frequency band, and may adjust The bandwidth of the broadcast message is received by itself, and the bandwidth of the received broadcast message is adjusted to be higher than or equal to the bandwidth capability of the indicated frequency band, and the broadcast message is received.

In the present invention, after obtaining the minimum bandwidth or/and the common control channel bandwidth of the active frequency band by the above two methods, the terminal may not be used for determining the bandwidth of the common control channel, such as adjusting the channel. The occupied bandwidth or the bandwidth occupied by the synchronization channel receives public control information such as broadcast information or synchronization information.

In the present invention, the broadcast channel bandwidth of the LTE system is set to a smaller bandwidth, or a minimum supported bandwidth, or less than or equal to the minimum bandwidth of the used frequency band.

The two scenarios are described in detail below.

FIG. 3 is a flowchart of Embodiment 1 of a method for accessing a wireless communication system with different bandwidth capabilities according to the present invention, and the specific steps are as follows:

Step 300: The network side of the LTE system presets a minimum bandwidth or/and a common control channel bandwidth of each frequency band.

The network side of the LTE system may be a cell base station (NodeB).

Step 301: The LTE system network side selects the current according to the resource configuration according to the prior art. The frequency band used, and determining the minimum bandwidth or/and the common control channel bandwidth of the used frequency band according to a preset correspondence relationship, and broadcasting the minimum bandwidth or/and the common control channel of the frequency band used by itself through system signaling within the jurisdiction bandwidth.

When broadcasting, the minimum bandwidth of the used frequency band or/and the common control channel bandwidth may be broadcast corresponding to the frequency band, that is, the minimum bandwidth of the frequency band used for broadcasting or/and the correspondence relationship between the common control channel bandwidth and the frequency band; The minimum bandwidth of the frequency band used by the broadcast or/and the frequency band corresponding to the common control channel bandwidth.

In the broadcast, in order to ensure that the terminals on the network side of the LTE system supporting different bandwidths can receive broadcasts, the LTE system can set the channel bandwidth of the broadcast system signaling to be relatively small, such as 1.25 Mhz bandwidth. In the broadcast, in order to ensure that the terminal on the network side of the LTE system can receive the broadcast, the bandwidth capability of the terminal can ensure that the terminal accesses the LTE system, and the bandwidth of the broadcast channel can be set to be less than or equal to the used frequency band. The minimum bandwidth, so that even if some terminals in the jurisdiction of the LTE system network do not receive the broadcast, it means that these terminals do not have the bandwidth capability to access the LTE system.

In step 302, the terminal in the range of the network of the LTE system receives the broadcast, and determines whether the bandwidth capability of the LTE system can be accessed according to the minimum bandwidth of the broadcast or/and the bandwidth of the common control channel. If yes, go to step 303; Otherwise, step 304 is performed.

The process of determining whether the bandwidth capability of the terminal can access the LTE system according to the minimum bandwidth of the broadcast or/and the common control channel bandwidth is: determining whether the bandwidth capability that the terminal has is higher than or equal to the minimum bandwidth broadcasted and/or the common control channel. Bandwidth, if yes, can access the LTE system; otherwise, it cannot access the LTE system.

Step 303: The terminal accesses the LTE system, and communicates with the LTE system by using a frequency band currently used by the LTE system.

Step 304: The terminal does not access the LTE system, and the process ends.

4 is a method for implementing a terminal with a different bandwidth capability to access a wireless communication system according to the present invention; The flow chart of the second example, the specific steps are:

Step 400: The network side and the terminal of the LTE system each preset a minimum bandwidth or/and a common control channel bandwidth of each frequency band.

The minimum bandwidth or / and common control channel bandwidth supported by each frequency band set by the network side and the terminal of the LTE system must be the same.

When setting, you can define the minimum bandwidth of each frequency band or / and the common control channel bandwidth; you can also default the minimum bandwidth of each frequency band or / and the common control channel bandwidth, the default process is: preset a common value, if there is no special indication , all use the public value of this setting.

Step 401: The network side of the LTE system selects the currently used frequency band according to the resource configuration according to the prior art, and determines the minimum bandwidth or/and the common control channel bandwidth of the used frequency band according to the set correspondence relationship, by using the minimum bandwidth of the frequency band or The bandwidth above the minimum bandwidth is communicated in the adopted frequency band, and the terminal determines the frequency band used by the network side jurisdiction area of the current LTE system according to the prior art.

The process of determining, by the terminal, the frequency band used by the network side jurisdiction of the LTE system according to the prior art is: the terminal determines the frequency band used by the network side jurisdiction of the current LTE system according to the frequency band capability supported by the terminal, if one terminal supports multiple The band capability can be searched in these bands, and in which band the signal of the LTE system can be searched, the terminal adjusts its working point in this band.

Step 402: The terminal determines, according to the preset correspondence, the minimum bandwidth or/and the common control channel bandwidth corresponding to the frequency band used by the network side jurisdiction area of the LTE system, and determines whether the frequency band capability of the LTE system is higher than or equal to the determined current The minimum bandwidth or/and the common control channel bandwidth corresponding to the frequency band used by the network side jurisdiction of the LTE system. If yes, go to step 403; otherwise, go to step 404.

Step 403: The terminal accesses the LTE system, and passes the network side jurisdiction of the current LTE system. The frequency band used by the area communicates with the LTE system.

Step 404: The terminal does not access the LTE system, and the process ends.

The present invention can be applied to various application scenarios, and a specific embodiment will be described below. It is assumed that the minimum bandwidth of the frequency band used by the network side of the LTE system is 10 MHz, and the bandwidth of the common control channel is 5 MHz. After the terminal obtains the bandwidth capability of the LTE system through the system signaling broadcasted by the network side of the LTE system, the terminal adjusts itself and accesses the LTE. system. There are two methods for adjusting. The first one is to determine whether the bandwidth capability of the LTE system is higher than or equal to the bandwidth of the LTE system. If yes, access the LTE system. Otherwise, the LTE system is not connected, and the process ends. The second type: Adjust the bandwidth capability of the network, so that it has the bandwidth capability to access the LTE system.

The method for accessing a wireless communication system with different bandwidth capabilities according to the present invention enables a terminal having different bandwidth capabilities to obtain the bandwidth capability of the frequency band used in the network side jurisdiction of the current LTE system, such as the minimum bandwidth or/and the common control channel bandwidth. Therefore, it is determined whether the LTE system can be accessed according to its own bandwidth capability. The method of the present invention can not only enable the LTE system to access terminals with different bandwidth capabilities, but also satisfy terminals with various bandwidth capabilities to communicate in the LTE system, and can also specify the terminal with which bandwidth capability the LTE system can access. At the same time, LTE systems with different bandwidths are supported. By adopting the method provided by the present invention, the terminal can adjust the bandwidth of the common control information, such as the broadcast message or the synchronization information, by indicating the bandwidth occupied by the common control channel, such as the broadcast channel or the synchronization channel, to facilitate the terminal to receive the public control correctly and conveniently. Information, such as broadcast messages or synchronization information, and with this method, the LTE system can flexibly adjust the bandwidth occupied by a common control channel such as a broadcast channel or a synchronization channel in different network configuration environments.

The foregoing describes the process for the terminal to access the wireless communication system with different bandwidth capabilities in the LTE system, but the present invention is not limited to the LTE system, and other systems may be used to perform terminal access wireless communication systems with different bandwidth capabilities. the process of. The embodiment of the invention further provides a terminal, which has a communication module and a parsing module in addition to the modules existing in the prior art.

The communication module is configured to receive system signaling that carries the minimum bandwidth supported by the frequency band used by the LTE system or/and the common control channel bandwidth, and then sent to the parsing module, where the parsing module parses the minimum supported by the LTE system. Bandwidth or/and common control channel bandwidth, adjust the bandwidth of its own receiving common control channel or determine that it is higher than or equal to the minimum bandwidth supported by the LTE system band or/and the common control channel bandwidth, and then communicate with the LTE system through the communication module. .

The embodiment of the present invention further provides another terminal, which has a communication module and a mapping relationship module, in addition to the modules existing in the prior art, where

a mapping relationship module, configured to store a minimum bandwidth or/and a common control channel bandwidth of each frequency band used by the LTE system, and corresponding to a minimum bandwidth or/and a public frequency corresponding to a frequency band used by the terminal to access the LTE system according to the correspondence relationship The control channel bandwidth is sent to the communication module;

The communication module is configured to communicate with the network side of the LTE system by using the minimum bandwidth or/and the common control channel bandwidth corresponding to the frequency band used by the terminal currently connected to the LTE system sent by the mapping module.

The embodiment of the present invention further provides a system, where the system includes an LTE network side and a terminal, where the terminal obtains a minimum bandwidth or/and a common control channel of a frequency band used by the current LTE network side jurisdiction area through system signaling or preset setting. The bandwidth is processed according to the obtained minimum bandwidth or/and the common control channel bandwidth, and communicates with the LTE system network side.

In the system, the terminal of the application may be two terminals proposed in the embodiments of the present invention.

The terminal and system embodiments of the present invention are exemplified by the LTE system, but the present invention is not limited to the LTE system, and may be other wireless communication systems. The above described specific embodiments of the present invention are described in detail, and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Claim

A method for accessing a wireless communication system with terminals having different bandwidth capabilities, the method comprising:

2. The method according to claim 1, wherein the process of accessing the wireless communication system according to the acquired bandwidth capability is:

The terminal determines whether the bandwidth capability of the terminal has a bandwidth capability higher than or equal to the acquired bandwidth capability. If yes, accessing the wireless communication system, the communication is performed by using a frequency band adopted by the network side jurisdiction of the wireless communication system.

The method according to claim 1, wherein the process of accessing the wireless communication system according to the acquired bandwidth capability is: the terminal adjusts the bandwidth capability of the terminal to be higher than or equal to the acquired bandwidth capability, and accesses A wireless communication system communicates through a frequency band employed by a network side jurisdiction of a wireless communication system.

4. The method according to claim 1, wherein the process of obtaining the bandwidth capability of the frequency band used by the network side jurisdiction of the currently located wireless communication system by system signaling is:

Al 1. The network side of the wireless communication system in the area where the terminal is currently located is preset with the bandwidth capability of each frequency band;

A12. The network side of the wireless communication system in the area where the terminal is currently located selects the currently used frequency band, and determines the bandwidth capability of the used frequency band according to the correspondence relationship set by All, and broadcasts the bandwidth of the used frequency band by system signaling in the jurisdiction area. ability;

A13. The terminal receives the bandwidth capability of the frequency band used by the broadcast.

5. The method of claim 4, wherein the system letter of step A12 The bandwidth used is preset for the wireless communication system, or the bandwidth capability of the wireless communication system is set to be less than or equal to the used frequency band.

The method according to claim 4, wherein the bandwidth capability of the frequency band used in step A12 is broadcast corresponding to the frequency band used.

7. The method according to claim 1, wherein the process of obtaining the bandwidth capability of the frequency band used by the network side jurisdiction of the currently located wireless communication system by presetting is:

A21. The network side and the terminal of the area where the jurisdiction terminal is currently located each pre-set the bandwidth capability of each frequency band;

A22. After obtaining the frequency band used by the network side of the area where the terminal is currently located, the terminal determines the bandwidth capability of the frequency band used by the network side of the area where the terminal is currently located according to the correspondence relationship set by A21.

8. The method according to claim 7, wherein the bandwidth capability of each frequency band set on the network side of the area in which the terminal is currently located is the same as the bandwidth capability of each frequency band set in the terminal.

9. The method according to claim 4 or 7, characterized in that the set bandwidth capability of each frequency band is preset or adopts a set default value.

The method according to claim 1, wherein the bandwidth capability of the frequency band is a minimum bandwidth of a frequency band or/and a common control channel bandwidth; wherein a minimum bandwidth of the frequency band is a minimum occupied bandwidth of the frequency band or The minimum bandwidth capability of the terminal supported by the frequency band; the common control channel bandwidth is the bandwidth occupied by the broadcast channel or the synchronization channel.

A method for setting a bandwidth of a broadcast channel, the method comprising: setting a bandwidth of a broadcast channel of the wireless communication system to be less than or equal to a minimum bandwidth capability of the used frequency band or less than or equal to a minimum supported bandwidth.

12. The method of claim 11 wherein the wireless communication system passes The broadcast channel broadcasts the bandwidth capabilities of the frequency band used. The bandwidth capability of the used frequency band corresponds to the frequency band used for broadcasting.

A system for accessing a wireless communication system with different bandwidth capabilities, wherein the system comprises: a network side and a terminal of a wireless communication system, wherein

The terminal acquires the bandwidth capability of the frequency band used in the current LTE network side jurisdiction by system signaling or pre-setting, and communicates with the network side of the wireless communication system according to the acquired bandwidth capability.

14. The system of claim 13 wherein the bandwidth capability is a minimum bandwidth or/and a common control channel bandwidth.

15. A terminal having a different bandwidth capability for terminal access to a wireless communication system, wherein the terminal comprises a communication module and a parsing module,

The communication module is configured to receive the system signaling that carries the minimum bandwidth supported by the frequency band of the wireless communication system or/and the bandwidth of the common control channel, and then send the signal to the parsing module, and the parsing module obtains the minimum supported by the frequency band adopted by the wireless communication system according to the parsing. Bandwidth or/and common control channel bandwidth, adjusting the bandwidth of its own receiving common control channel or determining that it is higher than or equal to the minimum bandwidth supported by the frequency band adopted by the wireless communication system or/and the common control channel bandwidth, through the communication module and the wireless communication system Communicate.

A terminal having a different bandwidth capability for accessing a wireless communication system, wherein the terminal comprises a communication module and a mapping relationship module, wherein

a communication module, configured to use a mapping module to transmit a minimum bandwidth or/and a common control channel bandwidth corresponding to a frequency band used by a terminal to access a wireless communication system, and a wireless communication system network The side communicates.