WO2011018004A1 - Method and system for handover and method for acquiring neighbor broadcast messages - Google Patents

Abstract

The present invention provides a method and system for handover, and a method for acquiring neighbor broadcast messages. In the handover method, an Advanced Mobile Station (AMS), which is working in the 16M Zone (MZone) of a service Advanced Base Station (ABS), acquires the content of a neighbor broadcast message of the Legacy Zone (LZone) of the service ABS, while the message is sent by the service ABS; the AMS hands over to a neighbor Yardstick Base Station (YBS) or the LZone of a neighbor ABS according to the acquired content of the neighbor broadcast message. The present invention can realize the handover for the AMS in the MZone of the current service ABS to the neighbor YBS or the LZone of the neighbor ABS.

Description

 The present invention relates to the field of mobile communications technologies, and in particular, to a handover method and system, and a method for acquiring a neighbor broadcast message. Background Art Currently, wireless communication systems use electromagnetic waves to communicate with mobile or fixed wireless communication terminals (e.g., mobile wireless telephones or devices such as notebook computers with wireless communication cards can be referred to as terminals). In general, when performing wireless communication, the terminal is located within the wireless coverage of the system and communicates with the system over the wireless communication channel. The wireless communication channel divides the electromagnetic wave frequency into a plurality of carrier frequencies, and one carrier frequency is a wireless communication channel. The wireless communication system provides wireless coverage in a certain geographical range by using a designated wireless channel through a base station (Base Station, BS for short). This geographical range is called a cell. Typically, the base station is located in the center of the cell. When a terminal moves from one cell to another, in order to maintain communication, handover of the base station is required. Due to the rapid development of communication technology, advanced base stations (abbreviated as ABS) have emerged, and advanced base stations can be compatible with traditional terminals. Similarly, Advanced Mobile Station (AMS) should also be able to access traditional base stations. The time zone of the advanced base station can be divided into two zones i or, the first zone i or (also known as the advanced zone i or MZone) and the second zone (also known as the legacy zone, Legacy Zone, abbreviated For LZone). The advanced terminal can work in the first area, and the legacy terminal can work in the second area. Since the advanced terminal can choose to use the advanced communication protocol or the traditional protocol, the advanced terminal can work either in the first area of the advanced base station or in the second area of the advanced base station, thereby appearing in the first area and the second area. For conversion between zones, such a switch can be called a Zone Switch.

Taking WiMAX technology as an example, an advanced control station (such as a base station/relay station supporting the IEEE 802.16m protocol) can be compatible with supporting a legacy mobile station (for example, a mobile station supporting the IEEE 802.16e protocol;), and similarly, an advanced mobile station (for example, supporting IEEE802) The .16m protocol mobile station should also be able to access the traditional control station (such as a base station supporting IEEE802.16e or a relay station supporting IEEE802.16j). _{0 The} first area supports the new communication protocol defined by IEEE 802.16m, and the second area can Supports IEEE802.16e/16j protocol. In addition, advanced control stations can only access advanced terminals, ie only new communication protocols defined by IEEE 802.16m (only the first area). In order to improve the data transmission rate of a wireless communication system, a multi-carrier technique is proposed. Advanced base stations are capable of supporting multi-carrier operation. In a protocol architecture of a multi-carrier wireless communication system, a unified media access control entity (MAC) controls a physical layer (channel 1 , channel 2 channel N ) of a physical layer (referred to as PHY). Each channel may have a different bandwidth, and the bandwidth here may be a continuous or discontinuous frequency band. In a wireless communication system supporting multi-carrier operation, for a base station, a carrier can be divided into a fully configured carrier and a partially configured carrier. The fully configured carrier refers to a carrier configured with all control channels, and the foregoing control channels include a synchronization channel, a broadcast channel, a multicast channel, and a unicast channel, and also includes channels related to information and parameters of multi-carrier operation and other carriers. . Therefore, the process of the terminal performing network access must be performed on the fully configured carrier; for the terminal, the fully configured carrier for performing network access is referred to as the primary carrier. A partially configured carrier refers to a carrier that is only configured with a basic control channel for supporting traffic interactions in multi-carrier operation. The fully configured carrier can serve as the primary carrier or secondary carrier of the terminal, and the partially configured carrier can only serve as the secondary carrier of the terminal. In a cell, each terminal has only one primary carrier, and may have one or more secondary carriers or no secondary carriers. The advanced terminals that support multi-carrier operation can be divided into single-channel (multi-radio) terminals and multi-channel (multiple-radio) terminals. One channel corresponds to one radio frequency module (Radio Frequency, RF for short) of the physical layer, and one channel can work at one carrier frequency of the system. According to the prior art, the neighboring area broadcast message (for example, AAI-NBR-ADV) of the first base station of the advanced base station and the advanced base station broadcasts only the system information of the neighboring area advanced base station and the neighboring area advanced base station first area. Therefore, the advanced terminal working in the first area of the advanced base station or the advanced base station cannot directly obtain the system information of the neighboring area traditional base station and the neighboring area advanced base station second area from the neighboring area broadcast message of the first base station of the advanced base station or the advanced base station. . If the advanced terminal needs to switch from the first area of the serving advanced base station to the neighboring area traditional base station or to the second area of the neighboring area advanced base station in order to obtain better service, the AMS cannot obtain the neighboring area traditional base station and neighboring area advanced. The system information of the second area of the base station, so that switching from the first area serving the advanced base station to the second area of the neighboring area advanced base station or the neighboring area conventional base station cannot be performed. SUMMARY OF THE INVENTION The present invention has been made in view of the problem that an advanced terminal existing in the related art cannot switch from a first area serving an advanced base station to a second area of a neighboring area advanced base station or a neighboring area conventional base station, and the main purpose of the present invention is It is to provide an acquisition scheme of a neighboring area broadcast message and an improved handover party. Case to solve the above problem. According to an aspect of the present invention, a handover method is provided. The handover method according to the present invention includes: for an advanced terminal operating in a first area serving an advanced base station, the advanced terminal acquires a content of a neighboring area broadcast message of a second area of the service advanced base station transmitted by the advanced base station; The terminal switches to the second area of the neighboring area advanced base station or the neighboring area traditional base station according to the content of the obtained neighboring area broadcast message. According to another aspect of the invention, a switching system is provided. The handover system according to the present invention includes: an advanced base station and an advanced terminal. The advanced base station is configured to send the indication information or the neighboring area broadcast message of the second area of the advanced base station to the advanced terminal in the first area, where the indication information is used to indicate that the advanced terminal receives in the second area of the advanced base station. The neighboring area broadcast message; the advanced terminal, working in the first area of the advanced base station, for receiving the indication information sent by the advanced base station or the neighboring area broadcast message, acquiring the content of the neighboring area broadcast message, and according to the obtained The content of the neighboring area broadcast message is switched to the second area of the neighboring area advanced base station or the neighboring area traditional base station. According to still another aspect of the present invention, a method for acquiring a neighbor broadcast message is provided. For an advanced terminal operating in a first area of an advanced base station, the method includes: acquiring an advanced base station by an advanced terminal The content of the neighboring area of the second area broadcasts the message. According to the above at least one aspect of the present invention, the advanced terminal acquires the content of the neighboring area broadcast message of the second area of the serving advanced base station sent by the advanced base station, and acquires the second area of the neighboring area traditional base station and the neighboring area advanced base station. System information, so that switching from the first area of the current serving advanced base station to the second area of the neighboring area legacy base station or the neighboring area advanced base station can be realized. Other features and advantages of the invention will be set forth in the description which follows, and The objectives and other advantages of the invention will be realized and attained by the <RTI The drawings are intended to provide a further understanding of the invention, and are intended to be a part of the description of the invention. In the drawing: 1 is a flow chart of a switching method according to an embodiment of the present invention; FIG. 2 is a flowchart of Embodiment 1; FIG. 3 is a flowchart of Embodiment 2; FIG. 4 is a flowchart of Embodiment 3; Figure 4 is a flow chart of the fifth embodiment; Figure 7 is a flow chart of the sixth embodiment; Figure 8 is a third embodiment of the seventh embodiment; Figure 9 is a diagram of a seventh embodiment of the present invention; Schematic diagram of the switching system. In the prior art, the neighboring area broadcast message of the first area of the advanced base station and the advanced base station only broadcasts the system information of the neighboring area advanced base station and the neighboring area advanced base station first area, and therefore works first in the advanced base station. The advanced terminal of the area cannot obtain the system information of the second area of the neighboring area advanced base station and the legacy base station of the neighboring area from the neighboring area broadcast message, thereby failing to realize the second area from the first area serving the advanced base station to the advanced base station of the neighboring area and The switching of the traditional base station in the neighboring area is provided. In view of this, the embodiment of the present invention provides a switching method. In the embodiment of the present invention, for the advanced terminal working in the first area of the advanced base station, the advanced terminal acquires the content of the neighboring area broadcast message of the second area of the service advanced base station sent by the advanced base station, and according to the acquired The content of the neighboring area broadcast message of the second area is switched from the first area of the current serving advanced base station to the second area of the neighboring area advanced base station or the neighboring area conventional base station. The embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The preferred embodiments of the present invention are described in the following with reference to the accompanying drawings, which are intended to illustrate and illustrate the invention. In the embodiment of the present invention, the terminals involved include, but are not limited to, a mobile radiotelephone, a notebook computer with a wireless communication card, a personal digital assistant, and the like. According to an embodiment of the present invention, a handover method is first provided, where the method is used for switching from an advanced terminal in a first area serving an advanced base station to a second base station of a neighboring area or a neighboring area advanced base station. region. FIG. 1 is a flowchart of a handover method according to an embodiment of the present invention. As shown in FIG. 1 , for an advanced terminal operating in a first area of an advanced base station, the handover method in the embodiment of the present invention mainly includes The following step 4 gathers (step 4 S 101 - step 4 gathers S 103 ): Step S 101: The advanced terminal acquires part or all of the content of the neighbor broadcast message of the second area of the advanced base station transmitted by the advanced base station; Step S103: Part or all of the content of the neighboring cell broadcast message acquired by the advanced terminal is switched to the second area of the neighboring area advanced base station or the neighboring area traditional base station. In the embodiment of the present invention, the advanced terminal may obtain part or all of the content of the neighboring area broadcast message of the second area of the advanced base station of the monthly service by the following two methods:

(1) The service advanced base station sends the indication information to the advanced terminal in the first area, and indicates that the advanced terminal receives the neighboring area broadcast message in the second area serving the advanced base station. Specifically, the indication information may include but is not limited to one of the following: : Serving a time offset between the first area and the second area of the advanced base station, carrier information of the second area, and preamble sequence information of the second area. When the advanced terminal is a multi-channel terminal, the indication information may further include channel carrier information used for receiving the neighbor broadcast message in the second area. The above carrier information may be physical frequency point information, or a physical carrier number, or a logical carrier number. After receiving the foregoing indication information, the advanced terminal receives the neighboring area broadcast message in the second area of the serving advanced base station according to the indication of the indication information, thereby acquiring the part of the neighboring area broadcast message of the second area of the advanced base station of the monthly service Or all content;

(2) the serving advanced base station transmits part or all of the content of the neighboring area broadcast message of the second area serving the advanced base station on the first area, and the advanced terminal receives the neighboring area broadcast on the first area of the advanced base station of the monthly service Part or all of the message. In addition, in the embodiment of the present invention, the advanced terminal may directly switch to the second area of the neighboring area advanced base station or the neighboring area traditional base station after acquiring part or all of the content of the neighboring area broadcast message of the second area serving the advanced base station. And, if the advanced terminal chooses to switch to the second area of the neighboring area advanced base station, and the second area of the neighboring area advanced base station and the first area of the serving advanced base station are located on different carriers, according to the embodiment of the present invention, The advanced terminal may also perform carrier conversion, switch from the current carrier to the first region of the carrier where the target second region is located, and then switch from the first region of the carrier. Switch to the second area of the target. Therefore, in the embodiment of the present invention, there are four switching methods, and the four methods are respectively introduced below. In the method, the serving advanced base station sends the indication information to the advanced terminal in the first area, and the advanced terminal receives the neighboring area broadcast message of the second area in the second area of the serving advanced base station according to the indication information, thereby performing the method. Switching from a first area serving an advanced base station to a second area of a neighboring area advanced base station or a neighboring area conventional base station. Specifically, in the method, the advanced terminal may perform the following steps: Step 1: The advanced base station sends indication information to the terminal in its first area, and according to the indication information, the terminal is in the second of the advanced base station of the monthly service The area receives the neighboring area broadcast message of the second area. In a specific implementation process, the foregoing indication information sent by the base station may be carried by one of the following messages: a measurement response message, a neighboring area broadcast message of the first area (AAI-NBR- ADV), superframe header of the first zone i or, system configuration description message (AAI-SCD), additional broadcast information message. Specifically, the foregoing indication information includes, but is not limited to, one of the following information: a time offset between the first area and the second area serving the advanced base station, carrier information of the second area serving the advanced base station, and the second area. Lead sequence information. Further, if the terminal is a multi-channel terminal, the indication information may further include: channel carrier information used by the terminal to receive the neighbor broadcast message on the second area. The carrier information may be physical frequency information, a physical carrier number, or a logical carrier number. Specifically, the neighboring area broadcast message of the foregoing area includes at least one of the following: system information of a neighboring cell legacy base station, and system information of a second area of a neighboring cell advanced base station, where the system information includes: carrier frequency information, a preamble Sequence information, etc.; Step 2: After the terminal successfully receives the neighboring area broadcast message of the second area, the serving advanced base station actively sends a handover command message in the first area. In the specific implementation process, the advanced base station of the monthly service can also receive the request from the terminal. In response to the request message, the handover command message is sent to the terminal in the first area. The request message carries at least the following information: the target legacy base station information and/or the target advanced base station that the terminal wishes to handover to. The second area information; specifically, the foregoing handover command message sent by the service advanced base station includes at least one of the following information: the target legacy base station information recommended by the advanced base station to the terminal and/or the second area information of the target advanced base station; The identifier is used to indicate whether the terminal keeps a connection with the monthly base station during the network re-entry process; the action time on the recommended target base station is used to indicate a specific moment when the terminal initiates network re-entry on the target base station; A type indicating a target base station recommended to the advanced terminal in the handover command message. After receiving the handover command, the terminal may send a handover indication message to the serving advanced base station to start performing handover. Specifically, the foregoing handover indication message includes at least one of the following information: an action codeword for starting handover, a target legacy base station information to be switched to, or second region information of a target advanced base station, and when the terminal is a multi-channel terminal The handover indication message further includes carrier information of the channel used by the terminal to perform the handover, where the carrier information may be physical frequency information, a physical carrier number, or a logical carrier number. Preferably, the foregoing request sent by the terminal The message, the handover command message sent by the advanced base station, and the handover indication message sent by the terminal are all sent on the primary carrier of the terminal. In the process of performing the handover, if the handover command message carries the handover type identifier of the target base station recommended by the advanced base station, the terminal may determine, according to the handover type identifier, whether the recommended target base station is only the ABS, or only the legacy base station or LZone of the neighboring area ABS; if the identifier is not carried in the handover command message, it indicates that the recommended target base station may have both ABS and LZone of the legacy base station or neighboring area ABS. In the method, in the case of switching from the first area serving the advanced base station to the second area of the neighboring advanced base station, if the first area and the second area of the neighboring advanced base station are located on different carriers, the terminal The first region of the carrier where the second region of the neighboring base station is located may be switched from the carrier where the current first region is located, and then switched from the first region to the second region of the carrier. In this method, the manner in which the terminal acquires the neighbor broadcast message of the second area serving the advanced base station is similar to the method 1 described above. Specifically, when the method is used for switching, the following steps may be mainly included: Step 1: The serving advanced base station sends the indication information to the terminal in the first area, and according to the indication information, the terminal receives the neighboring area broadcast message of the second area in the second area of the advanced base station of the monthly service; The embodiment is similar to the above method 1, and is not mentioned here. Step 2: After the terminal successfully receives the neighboring area broadcast message of the second area, the serving advanced base station actively sends a handover command message in the first area, or responds to the request message from the terminal, and the service advanced base station sends a handover to the terminal in the first area. And the information carried in the foregoing request message includes: at least: the target advanced base station that the terminal wants to switch to and the target carrier information of the target advanced base station; specifically, the foregoing handover command message includes at least one of the following information: The target advanced base station recommended by the advanced base station and the target carrier information under the target advanced base station; the re-entry mode identifier, used to indicate whether the terminal maintains a connection with the service advanced base station during the network re-entry process; and the action time on the recommended target base station, And indicating a specific moment when the terminal initiates network re-entry on the recommended target base station; and the handover type identifier is used to indicate a type of the target base station recommended in the handover command message. Step 3: After receiving the handover command message, the terminal may send a handover indication message to the serving advanced base station, and start execution to the target advanced base station (which is an advanced base station in the neighboring advanced base station). The second area (ie, the target second area) is located. Specifically, the handover indication message includes at least one of: an action codeword for starting handover, target advanced base station information to be handed over, and target carrier information under the target advanced base station; and, when the terminal is In the multi-channel terminal, the handover indication message further includes: carrier information of the channel used by the terminal to perform the handover, where the carrier information may be physical frequency information, a physical carrier number, or a logical carrier number; The foregoing request message sent by the terminal, the handover command message sent by the advanced base station, and the handover indication message sent by the terminal are sent on the primary carrier of the terminal. And, in the process of the terminal switching from the first area serving the advanced base station to the second area of the target advanced base station, if the handover command message carries the re-entry mode identifier, the terminal may obtain the re-entry mode identifier according to the re-entry mode identifier. The value determines whether to maintain communication with the serving base station. Step 4: After switching to the carrier where the second area of the target advanced base station is located, the new serving advanced base station of the terminal actively sends a message to the terminal in the first area of the carrier; or, the new service advanced base station responds to the terminal Request message, the new monthly service advanced base station in the first area to the terminal Preferably, the request message may be a ranging request message (AAI-RNG-REQ). Further, the request message may or may not include a parameter item whose destination value is a region conversion; specifically, new The above message sent by the service advanced base station may be one of the following messages: handover command message (AAI-HO-CMD), measurement response message (AAI-RNG-RSP), dedicated zone i or conversion message (AAI-ZS- CMD), 4-area broadcast message (AAI-NBR-ADV); further, the above-mentioned one of the above messages sent by the new service advanced base station includes at least one of the following: a new service between the first area and the second area of the advanced base station a time offset, a new preamble sequence information of the second area serving the advanced base station, other system information of the second area serving the new advanced base station, an indication indicating whether the terminal maintains communication with the first area in the area conversion; and When the terminal is a multi-channel terminal, the message further includes: carrier information of the channel used by the terminal for area conversion; Step 5, the terminal receives the new information received according to the foregoing The above-mentioned message sent by the advanced base station in the first area performs area conversion. Specifically, in the area conversion process, if the message sent by the new service advanced base station carries an indication indicating whether the terminal maintains communication with the first area in the area conversion And determining, by the terminal, whether to maintain communication with the first area according to the value of the indication; and, if the message sent by the new service advanced base station does not include an indication indicating whether the area is in communication with the first area, In an embodiment of the invention, the terminal maintains communication with the first area while implementing the second area network entry. Method 3 In the method, the serving advanced base station transmits the neighboring area broadcast of the second area to the advanced terminal in its first area. The advanced terminal performs the handover from the first area serving the advanced base station to the second area of the neighboring area advanced base station or the neighboring area traditional base station according to the neighboring area broadcast message. Specifically, in the method, the advanced terminal performs the handover mainly. The method includes the following steps: Step 1: The service advanced base station sends the first in its first area The content of the neighboring area broadcast message of the second area of the base station is received by the terminal, and the terminal receives the content of the neighboring area broadcast message serving the second area of the advanced base station in the first area; specifically, the neighboring area broadcast message of the second area is at least Includes one of the following: Neighborhood tradition System information of the base station, system information of the second area of the neighboring area advanced base station, for example, carrier frequency information, preamble sequence information of the second area of the neighboring area traditional base station or the neighboring area advanced base station; specifically, the service advanced base station is in the first area The content of the neighbor broadcast message of the second area of the advanced base station is sent by unicast or broadcast. If the broadcast is performed by using a broadcast, in particular, part or all of the content of the neighbor broadcast message (ie, MOB-NBR-ADV) of the second area may be carried in the following message: the neighbor broadcast message of the first area (ie, AAI-NBR-ADV), the superframe header of the first region, the system configuration description message (AAI-SCD message), and the additional broadcast information message. If the content of the neighboring area broadcast message is carried in the superframe header of the first area, the content of the neighboring area broadcast message may be sent as a separate superframe header information element sub-packet (SFH SP IE ), or may be adjacent. The content of the area broadcast message is combined with other sub-packets to form a sub-packet for transmission; Step 2, Step 3: After successfully collecting the neighboring area broadcast message of the second area, the advanced terminal performs the advanced service according to the content of the broadcast message of the neighboring area. The switching of the first area of the base station to the second area of the neighboring area or the second area of the neighboring area is similar to the steps 2 and 3 in the first method, and details are not described herein. Method 4: The method is applicable to the case where the first area of the advanced base station of the neighboring cell is switched to the second area of the adjacent base station of the neighboring cell, and the first area serving the advanced base station and the second area of the advanced base station of the neighboring area are located on different carriers. Specifically, in the method, the advanced terminal may obtain the content of the neighboring area broadcast message of the second area serving the advanced base station by using the method as described in the foregoing method 3, and then switch to the neighbor by using the method as described in the foregoing method 2. The second area of the advanced base station of the area, that is, the carrier that first switches to the second area of the target, and then switches from the first area of the carrier of the second area to the second area, and the specific process is not mentioned. To further understand the foregoing switching scheme provided by the embodiments of the present invention, the following describes the specific embodiments. In the following embodiments, the method of the present invention is illustrated by taking a multi-channel advanced terminal as an example. It should be understood that the method described herein is equally applicable to single-channel terminals and multi-channel terminals. The difference between the single-channel advanced terminal area switching method and the multi-channel advanced terminal area switching method is only: The channel terminal and the base station do not need to negotiate the channel carrier for performing the area conversion, that is, the terminal performs the area conversion using the unique channel; and the multi-channel terminal can use the current primary carrier, or other channel carrier that maintains communication with the advanced base station, or the current terminal is not used yet. The idle channel carrier performs zone conversion. In the flowchart of the following embodiment, the message identified by the dotted line is an optional message, that is, it may or may not be sent in the implementation. Embodiment 1 In this embodiment, the switching of the advanced terminal is performed by using the above method 1. 2 is a flowchart of the embodiment. As shown in FIG. 2, in the embodiment, the second area of the advanced terminal that is switched from the first area serving the advanced base station to the adjacent base station or the neighboring area advanced base station mainly includes the following. Step 4: Step 201: The serving advanced base station actively sends an AAI-RNG-RSP message to the advanced terminal, and indicates that the advanced terminal receives the MOB_NBR-ADV message in the second area, where the AAI-RNG-RSP message includes at least one of the following: Serving a time offset between the first area and the second area of the advanced base station, carrier information and preamble sequence information of the second area, and channel carrier information used by the terminal to receive the neighbor broadcast message in the second area; The MOB_NBR-ADV message includes system information of the neighboring area legacy base station and the second area of the neighboring area advanced base station, such as carrier frequency information and preamble sequence information. Step 203: According to the received MOB_NBR-ADV message, if the terminal initiates the handover, the advanced terminal sends a request AAI-HO-REQ message on the primary carrier of the terminal in the first area, requesting to start the handover, where the AAI- The HO-REQ message includes at least: target legacy base station information to be switched to and/or second area information of the target advanced base station. Step 205: In response to the foregoing request by the advanced terminal, the serving advanced base station sends an AAI-HO-CMD message on the primary carrier of the terminal in the first area. The AAI-HO-CMD message includes at least one of the following: a target traditional base station information of the terminal and/or second area information of the target advanced base station; a re-entry mode identifier, configured to indicate whether the terminal maintains a connection with the monthly service base station during the network re-entry process; and an action time on the recommended target base station, And indicating a specific moment at which the terminal initiates network re-entry; the handover type identifier is used to indicate a type of the target base station recommended to the terminal in the handover command message. Specifically, in this embodiment, the parameter instance included in the AAI-HO-CMD message may be as shown in Table 1.

Table 1.

 Name Value Purpose

Mode 00: Switching the switching mode indicated by the base station

 01: Switch from MZone to where 00 is used for switching from ABS to ABS.

LZone is also used from ABS to traditional base stations or ABS

10: Keep the switch of LZone

 11 : Refuse to switch

Re-enter Bit0=0, indicating area conversion. When Mode is 00, this parameter is required. Mode is not maintained.

 Connect

 Bit0=l , indicating when the area is converted

 Maintain connection to the serving base station

The execution time and disconnection time of the disconnection are 0, the disconnection time = the action time - the difference between the offsets, the unit is the frame, the off time offset; the reentry mode is 1, the disconnection time = action time + off time offset

Resource protection MZone reserves the AMS resource. When the Mode value is 00, you need to carry this parameter.

Switching base 1: The recommended target base station only includes this parameter when the Mode value is 00. If the station identifier ABS is not carried, it indicates that the recommended target base station contains

 0: The recommended target base station only contains ABS, and also includes traditional base stations or neighboring ABS traditional base stations or neighboring areas ABS LZone

 Lzone

Target base When the Mode value is 00, this parameter must be carried for each target base station identification station.

At the beginning of the execution area switch when the mode is set to 00, for each target base interval, the unit is the frame station to carry this parameter.

 CDMA Bit0=0, indicating that it is not required to be executed. When the Mode value is 00, for each target base, the special standard 3 station needs to carry this parameter.

Know Bit0=l, indicating that you need to perform special

 Measuring 3 giant

Dedicated CDMA code and dedicated range finder When Mode is 00, this parameter is required for each target base code and station.

Special test

Opportunity

The handover is used to indicate the steps that can be omitted during the re-entry process. When the Mode value is 00, this parameter is required for each target base station.

Giant Deadline

Time

Service level, such as service, can be provided by the target base station. When the mode level indicator is 00, this parameter is required for each target base station.

When the value of Mode is 00, the target base station supporting multi-wave numbered carriers must carry this parameter multi-carrier lbit. The value of 0 means that when the mode is 00, the support is more for each support. In the embodiment, the parameter instance included in the AAI-HO-CMD message may also be as shown in Table 2, where the target base station that disconnects all the secondary carrier carriers needs to carry the oscilloscope. . Table 2.

 Name Value Purpose

Mode 00: Switch from ABS to ABS Switch mode indicated by base station

 01 : Switch from MZone to LZone where 00 is used for switching from ABS to ABS, 10: Switch from ABS to legacy base station or 10 for switching from ABS to legacy base station or ABS ABS Lzone 11 : Rejecting the switch

Re-enter Bit0=0, indicating that the zone conversion is not guaranteed. When Mode is 00 or 10, it needs to carry jt匕 mode and the connection with the serving base station.

 Bit0= 1 , indicating that the area is maintained during conversion

 Connection to the serving base station

When disconnected between execution time and disconnection time When Mode is 00 or 10, it needs to carry jt匕 offset difference, the unit is frame, parameter

 Re-entry mode is 0, off time = action time-off time offset; re-entry mode is 1, disconnection time = action time + off-time offset resource keeps MZone time to reserve AMS resource when Mode value is 00 or 10 hours need to carry jt holding time parameters

When the value of the target is 00 or 10, the target base station for each station needs to carry the start time of the area switching when this parameter is executed. When the Mode value is 00 or 10, it is the frame for each bit. Each target base station needs to carry this parameter.

 CDMA Bit0=0, indicating that it is not required to perform dedicated. When the Mode value is 00 or 10, for each giant target, the target base station needs to carry this parameter. Bit0= 1 indicates that special measurement needs to be performed.

 Distance

Dedicated test CDMA code and dedicated ranging opportunity When Mode is 00 or 10, this parameter must be carried for each code and target base station.

Opportunity

Switching is used to indicate that the re-entry process can be omitted. Step, when Mode is 00 or 10, this parameter is required for each target base station.

Deadline

Time

Service level, such as service, can be provided by the target base station. When the level indication mode is 00 or 10, this parameter needs to be carried for each target base station.

Physical load When the value of Mode is 00 or 10, this parameter needs to be carried for the target base station that supports multiple carriers per wave.

Multi-carrier lbit, the value of 0 means that when the Mode value is 00 or 10 before the handover, the AMS will disconnect all the secondary carriers for each handover, and the target base station supporting multiple carriers needs to carry the single-carrier handover. In step 207, after receiving the AAI-HO-CMD message, the advanced terminal may send a handover indication message (AAI-HO-IND) to the serving advanced base station on the primary carrier of the terminal in the first area, and start. Perform a switch. The AAI-HO-IND message includes at least one of the following: an action codeword for starting handover, a target legacy base station information to be switched to, or second region information of the target advanced base station, and channel carrier information used by the terminal to perform handover. The carrier information may be physical frequency point information, a physical carrier number, or a logical carrier number. Step 209: The advanced terminal uses the channel indicated by the advanced base station of the monthly service to start the handover to the target traditional base station or the second area of the target advanced base station when the action time arrives, and performs a network re-entry process. In the handover, the multi-channel terminal determines whether to maintain communication with the serving base station according to the value of the re-entry mode. In the second embodiment, the foregoing method 1 performs handover, and the serving advanced base station sends indication information in the superframe header of the first area. FIG. 3 is a flowchart of the embodiment. As shown in FIG. 3, in the embodiment, the advanced terminal performs the following steps: Step 301: The serving advanced base station indicates in the superframe header (SFH) of the first area. Terminal to the second zone i or receiving the MOB_NBR-ADV message; The superframe header of the first area includes at least one of the following: a time offset between the first area and the second area of the serving advanced base station, carrier information of the second area, and preamble sequence information, and the terminal is used to The second area receives the channel carrier information used by the neighboring area broadcast message. The MOB NBR-ADV message includes system information of the legacy base station in the neighboring area and/or system information of the second area of the neighboring area advanced base station. Step 303: The advanced base station sends an AAI-HO-CMD message on the primary carrier of the terminal in the first area. Specifically, the AAI-HO-CMD message includes at least one of the following: the target traditional base station information recommended to the terminal and/or Or the second area information of the target advanced base station; the re-entry mode identifier; the action time on the recommended target base station; and the handover type identifier, used to indicate the type of the target base station recommended to the terminal in the handover command message. Step 305: After receiving the AAI-HO-CMD message, optionally, the terminal sends a handover indication message (AAI-HO-IND) to the advanced uplink base station of the terminal in the first area, and starts to perform handover; The AAI-HO-IND message includes at least one of the following: an action codeword for starting handover, a target legacy base station information to be switched to, or second region information of the target advanced base station, channel carrier information used by the terminal to perform handover, The carrier information may be physical frequency point information, or a physical carrier number, or a logical carrier number. Step 307: The advanced terminal uses the channel indicated by the advanced base station of the monthly service to start switching to the target traditional base station or the second area of the target advanced base station when the action time arrives. In the area conversion, the multi-channel terminal determines whether to maintain communication with the serving base station according to the value of the re-entry mode. Embodiment 3 In this embodiment, the method 1 is used for handover, where the indication information is carried in a neighbor broadcast message (AAI-NBR-ADV) serving the first area of the advanced base station. FIG. 4 is a flowchart of the embodiment. As shown in FIG. 4, in the embodiment, the advanced terminal performs the following steps: Step 401: Serving the advanced base station to broadcast a message in the neighboring area of the first area (AAI-NBR) -ADV) instructing the terminal to receive the MOB_NBR-ADV message to the second area; The neighboring area broadcast message of the first area includes at least one of the following: a time offset between the first area and the second area of the advanced base station, carrier information of the second area, and preamble sequence information, and a terminal Channel carrier information used for receiving a neighbor broadcast message in the second area. The MOB NBR-ADV message includes system information of the legacy base station in the neighboring area and/or system information of the second area of the neighboring area advanced base station. Step 403: The advanced base station sends an AAI-HO-CMD message on the primary carrier of the terminal in the first area, where the AAI-HO-CMD message includes at least one of the following: the target traditional base station information and/or the target advanced to the terminal is recommended. Second area information of the base station; re-entry mode identifier; action time on the recommended target base station; handover type identifier. Step 405: After receiving the AAI-HO-CMD message, the advanced terminal sends a handover indication message (AAI-HO-IND) to the advanced base station of the terminal in the first area, and starts to perform handover; wherein, the AAI- The HO-IND message includes at least one of the following: an action codeword for starting handover, a target legacy base station information to be switched to, or second region information of the target advanced base station, and channel carrier information used by the terminal to perform handover, the carrier information It can be physical frequency information, or physical carrier number, or logical carrier number. Step 407: The advanced terminal uses the channel indicated by the advanced base station to start switching to the target traditional base station or the second area of the target advanced base station when the action time arrives. In the area conversion, the multi-channel terminal determines whether to maintain communication with the serving base station according to the value of the re-entry mode. Embodiment 4 This embodiment implements the handover of the advanced terminal in the first region of the advanced base station of the monthly service to the second region of the advanced base station of the neighboring cell by using the foregoing method 2, and switches to the neighboring cell advanced base station (target base station) The second area (the second area of the target) is located on a different carrier than the first area serving the advanced base station. FIG. 5 is a flowchart of the embodiment. As shown in FIG. 5, in the embodiment, the advanced terminal performs the following steps: Step 501: The serving advanced base station sends an active AAI-NBR-ADV message to the advanced terminal, indicating The advanced terminal receives the MOB_NBR-ADV message in the second area, where the AAI-NBR-ADV message includes at least one of the following: a time offset between the first area and the second area of the advanced base station, and the second area Carrier information and preamble sequence information, the channel carrier information used by the terminal to receive the neighbor broadcast message in the second area; and the neighboring area included in the MOB_NBR-ADV message System information of the second area of the legacy base station and the neighboring area advanced base station, such as carrier frequency information and preamble sequence information; Step 503: The advanced base station transmits a handover command message on the primary carrier of the terminal in the first area, the foregoing handover The command message includes at least one of the following information: the target advanced base station recommended by the advanced base station and the target carrier information under the target advanced base station; the re-entry mode identifier; the action time on the recommended target base station; and the handover type identifier. Step 505: Optionally, the advanced terminal sends a handover indication message to the advanced uplink base station to start performing the handover. Specifically, the handover indication message includes at least one of the following: an action codeword that starts the handover, and a target to be switched to. The advanced base station information and the target carrier information of the target advanced base station; the carrier information of the channel used by the terminal to perform the handover, where the carrier information may be physical frequency point information, a physical carrier number, or a logical carrier number; Step 507: The advanced terminal starts to perform handover to the carrier where the second region of the target advanced base station is located when the action time arrives, and switches to the second region where the terminal switches from the first region serving the advanced base station to the target advanced base station. During the carrier process, the terminal may determine the value of the incoming mode identifier to maintain communication with the service base station. Step 509: After switching to the carrier where the second area of the target advanced base station is located, the new advanced base station of the terminal actively sends a regional conversion command message (AAI-ZS-CMD) to the terminal in the first area of the carrier; It should be noted that, in a specific process, the new advanced base station may also send other messages to perform handover from the first area to the second area, for example, a handover command message (AII-HO-CMD), measurement a distance response message (AAI-RNG-RSP), a neighboring area broadcast message (AAI-NBR-ADV); and, the foregoing area conversion command message includes at least one of the following: a new service first base station and a second area of the advanced base station The time offset between the new, the preamble sequence information of the second region serving the new advanced base station, the other system information of the second region serving the new advanced base station, and the indication indicating whether the terminal maintains communication with the first region in the region conversion The carrier information of the channel used by the terminal for area conversion; Step 511, the terminal uses the designated channel to perform regional conversion, and converts to a new service advanced base. The second area of the station, during the area conversion process, the advanced terminal determines whether to maintain communication with the first area according to whether the terminal maintains communication with the first area. Embodiment 5 This embodiment uses the above method three to perform switching. FIG. 6 is a flowchart of the embodiment. As shown in FIG. 6, in the embodiment, the terminal performs handover mainly including the following steps: Step 601: The terminal receives the service on the primary carrier of the terminal in the first area of the advanced base station. The neighboring area broadcast message content sent by the base station in the second area of the advanced base station, where the neighboring area broadcast message content includes the system of the neighboring area traditional base station and/or the system of the second area of the neighboring area advanced base station Information, such as carrier frequency, preamble sequence, etc. Step 603: According to the received content of the neighboring broadcast message, optionally, the terminal sends a request message (AAI-HO-REQ) on the primary carrier of the terminal in the first area, requesting to start the handover, and the AAI-HO-REQ message is sent. At least one of the following: The target of the traditional base station that you want to switch to and

/ or second area information of the target advanced base station. Step 605: In response to the request of the terminal, the advanced base station sends an AAI-HO-CMD message on the primary carrier of the terminal in the first area, where the AAI-HO-CMD message includes at least one of the following: Targeting the traditional base station information and/or the second area information of the target advanced base station; re-entering the mode identifier, indicating whether the network re-entry process is connected with the serving base station; and at the recommended action time on the target base station, instructing the terminal to initiate the network on the network Specific time to re-enter; switch type identifier. Step 607: The terminal sends a handover indication message (AII-HO-IND) to the advanced base station of the terminal on the primary carrier of the terminal in the first area, and starts to perform handover. The AAI-HO-IND message includes at least one of the following: an action codeword for starting handover, a target legacy base station information to be switched to, or second region information of the target advanced base station, channel carrier information used by the terminal to perform handover, The carrier information may be physical frequency point information, or a physical carrier number, or a logical carrier number. Step 609: The advanced terminal uses the channel indicated by the advanced base station to start switching to the target traditional base station or the second area of the target advanced base station when the action time arrives. In the area conversion, the multi-channel terminal determines whether to maintain communication with the serving base station according to the value of the re-entry mode. Embodiment 6 This embodiment uses the above method three to perform switching. FIG. 7 is a flowchart of the embodiment. As shown in FIG. 7, the advanced terminal performing handover in this embodiment mainly includes the following steps: Step 701: The terminal receives on the primary carrier of the terminal in the first area of the advanced base station of the monthly service The neighboring area broadcast message content sent by the advanced base station in the second area of the advanced base station, the neighboring area broadcast message content includes: system information of the neighboring area traditional base station and/or the second area of the neighboring area advanced base station System information, such as carrier frequency, preamble sequence and other information. The method for the advanced base station to send the content of the message is: carrying it in the neighboring area broadcast message of the first area, and transmitting in a broadcast manner. Step 703: According to the received content of the neighboring area broadcast message, optionally, the terminal sends a request message (AAI-HO-REQ) on the primary carrier of the terminal in the first area, requesting to start the handover, and the AAI-HO-REQ message is sent. At least one of the following: The target of the traditional base station that you want to switch to and

/ or second area information of the target advanced base station. Step 705: In response to the request of the terminal, the advanced base station sends an AAI-HO-CMD message on the primary carrier of the terminal in the first area, where the AAI-HO-CMD message includes at least one of the following: Target legacy base station information and/or second area information of the target advanced base station; re-entry mode identification; action time on the recommended target base station; handover type identification. Step 707: Optionally, the terminal sends a handover indication message (AAI-HO-IND) to the serving advanced base station on the primary carrier of the terminal in the first area, and starts to perform the handover. The AAI-HO-IND message includes at least the following. One: an action codeword that starts to switch, a target legacy base station information to be switched to, or a second area information of the target advanced base station, and channel carrier information used by the terminal to perform handover, the carrier information may be physical frequency point information, or Physical carrier number, or logical carrier number. Step 709: The advanced terminal uses the channel indicated by the advanced base station to start switching to the target legacy base station or the second area of the target advanced base station when the action time arrives. During the handover process, the multi-channel terminal determines whether to maintain communication with the serving base station according to the value of the re-entry mode. Embodiment 7 This embodiment uses the above method three for switching. FIG. 8 is a flowchart of the embodiment. As shown in FIG. 8, the terminal performs handover in this embodiment, which mainly includes the following steps: Step 801: The terminal receives on the primary carrier of the terminal in the first area of the advanced base station of the monthly service The neighboring area broadcast message content sent by the advanced base station in the second area of the advanced base station, the neighboring area broadcast message content includes: system information of the neighboring area traditional base station and system information of the second area of the neighboring area advanced base station, Such as carrier frequency, preamble sequence and other information. The serving base station sends the content of the message by: carrying it in a supplementary broadcast information message and transmitting it in a broadcast manner. The parameter examples are shown in Table 4. Table 4.

Step 803: According to the received message, optionally, the terminal sends a request message (AAI-HO-REQ) on the primary carrier of the terminal in the first area, and requests to start the handover. The AAI-HO-REQ message includes at least: The target legacy base station information to be switched to and/or the second area information of the target advanced base station. Step 805: In response to the request of the terminal, the advanced base station sends an AAI-HO-CMD message on the primary carrier of the terminal in the first area, where the message includes at least one of the following: the target traditional base station information recommended to the terminal and / or second area information of the target advanced base station; re-entry mode identifier; action time on the recommended target base station; handover type identifier. Step 807: Optionally, the terminal sends a handover indication message (AAI-HO-IND) to the serving advanced base station on the primary carrier of the terminal in the first area, and starts performing handover. Among them, AAI-HO-IND The information includes at least one of the following: an action codeword for starting handover, a target legacy base station information to be switched to, or second region information of the target advanced base station, and channel carrier information used by the terminal to perform handover. Step 809: The advanced terminal uses the channel indicated by the advanced base station to start switching to the target traditional base station or the second area of the target advanced base station when the action time arrives. During the handover process, the multi-channel terminal determines whether to maintain communication with the serving base station according to the value of the re-entry mode. According to an embodiment of the invention, a handover system is also provided. FIG. 9 is a schematic structural diagram of a handover system according to an embodiment of the present invention. As shown in FIG. 9, the handover system according to the embodiment of the present invention mainly includes: an advanced base station 1 and an advanced terminal 3. The advanced base station 1 is a monthly base station of the advanced terminal 3, and is configured to send the indication information or the neighboring area broadcast message of the second area of the advanced base station 1 to the advanced terminal 3 in the first area, where the indication information is used to indicate The advanced terminal 3 receives the neighboring area broadcast message in the second area of the advanced base station 1; the advanced terminal 3, which operates in the first area of the advanced base station 1, and is configured to receive the indication information sent by the advanced base station 1 or the neighboring area broadcast message, and obtain The neighboring area broadcasts the content of the message, and switches to the second area of the neighboring area advanced base station or the neighboring area traditional base station according to the content of the obtained neighboring area broadcast message. As described above, with the technical solution provided by the embodiment of the present invention, the advanced terminal obtains the content of the neighboring area broadcast message of the second area of the service advanced base station that is sent by the advanced base station, and acquires the neighboring area traditional base station and the neighboring area advanced base station. The system information of the second area, so that switching from the first area of the current serving advanced base station to the second area of the neighboring area legacy base station or the neighboring area advanced base station can be realized. 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 handover method, characterized in that, for an advanced terminal operating in a first area serving an advanced base station, the method comprises:  The advanced terminal acquires the content of the neighboring area broadcast message of the second area of the service advanced base station that is sent by the advanced base station; and the content of the neighboring area broadcast message acquired by the advanced terminal is switched to the neighboring area advanced A second area of the base station or a legacy base station of the neighboring area. 2. The method according to claim 1, wherein the acquiring, by the advanced terminal, the content of the neighboring broadcast message comprises:  The serving advanced base station sends indication information to the advanced terminal in its first area, indicating that the advanced terminal receives the neighboring area broadcast message in a second area of the monthly advanced base station;  The advanced terminal receives the indication information, and receives the neighboring area broadcast message in a second area of the serving advanced base station, and acquires content of the neighboring area broadcast message. The method of claim 2, wherein the advanced base station sends the indication information to the advanced terminal by using one of the following messages: a ranging response message, a neighboring area broadcast message of the first area, Superframe header of the first area, system configuration description message, additional broadcast message. The method of claim 2, wherein the indication information comprises at least one of: a time offset between the first area and the second area of the serving advanced base station, the second Carrier information of the area, and preamble sequence information of the second area. The method according to claim 4, wherein, if the advanced terminal is a multi-channel terminal, the indication information further includes: the advanced terminal receiving a neighbor broadcast message on the second area Carrier information of the channel used, where the carrier information includes one of the following: physical frequency point information, physical carrier number, and logical carrier number. The method according to claim 1, wherein the acquiring, by the advanced terminal, the neighboring area broadcast message comprises: And transmitting, by the serving advanced base station, the content of the neighboring area broadcast message of the second area serving the advanced base station in the first area;  The advanced terminal receives the content of the neighboring area broadcast message. The method according to claim 6, wherein the manner in which the serving advanced base station sends the content of the neighboring area broadcast message of the second area in the first area comprises: broadcasting or unicast. The method according to claim 7, wherein when the serving advanced base station broadcasts the content of the neighboring area broadcast message of the second area in a broadcast manner, the serving advanced base station adopts the following manner Sending the content of the neighboring area broadcast message of the second area:  The serving advanced base station carries the content of the neighboring area broadcast message of the second area in the neighboring area broadcast message of the first area;  The serving advanced base station carries the content of the neighboring area broadcast message of the second area in a superframe header of its first area;  And the serving advanced base station carries the content of the neighboring area broadcast message of the second area in the system configuration description message;  The serving advanced base station carries the content of the neighboring area broadcast message of the second area in the additional broadcast message. 9. The method according to claim 8, wherein if the serving advanced base station carries the content of the neighboring area broadcast message of the second area in a superframe header of its first area, the second The content of the neighboring area broadcast message of the area is sent by a separate super-frame header information element sub-packet, or the content of the neighboring area broadcast message of the second area is combined with other sub-packets to form a sub-packet for transmission. The method according to any one of claims 2 to 9, wherein the parameter carried in the neighboring area broadcast message of the second area of the serving advanced base station comprises: system information of a neighboring area traditional base station And system information of the second area of the neighboring area advanced base station, where the system information includes: carrier frequency information, and preamble sequence information. The method according to any one of claims 2 to 9, wherein the switching of the advanced terminal to the second area of the neighboring base station or the neighboring area of the legacy base station comprises: The serving advanced base station sends a handover command message to the advanced terminal in its first area, instructing the advanced terminal to switch to a second area of a neighboring area advanced base station or a neighboring area conventional base station; and/or  After receiving the handover command message, the advanced terminal sends a handover indication message to the serving advanced base station, and starts to perform handover to a second area of the neighboring advanced base station or a neighboring base traditional base station. The method according to claim 11, wherein the information carried in the handover command message includes at least one of the following:  And the information that the advanced base station recommends to the target legacy base station of the advanced terminal; the information that the advanced base station recommends to the second area of the target advanced base station of the advanced terminal;  And a re-entry mode identifier, configured to indicate whether the advanced terminal keeps a connection with the serving advanced base station during a network re-entry process;  The action time at the recommended target advanced base station or the target legacy base station is used to indicate the specific time at which the advanced terminal initiates network re-entry on the target advanced base station or the target legacy base station;  And a handover type identifier, configured to indicate a type of the target base station recommended to the advanced terminal in the handover command message. The method according to claim 12, wherein, if the handover command message carries the handover type identifier, the advanced terminal distinguishes the recommendation of the service advanced base station in the handover command message according to the handover type identifier. The type of target base station. The method of claim 11, wherein before the sending advanced base station sends the handover command message, the method further includes:  The serving advanced base station receives a request message from the advanced terminal. The method according to claim 14, wherein the parameter carried in the request message includes at least one of the following: information of a target legacy base station that the advanced terminal wishes to switch to, the advanced terminal wants to switch to The target is the information of the second region of the advanced base station. The method according to claim 11, wherein the information carried in the handover indication message includes at least one of the following: an action codeword in which the advanced terminal starts to perform handover, and a target transmission base station to be switched to. Information or information of the second area of the target advanced base station. The method according to claim 16, wherein, if the advanced terminal is a multi-channel terminal, the information carried in the handover indication message further includes: a carrier of a channel used by the advanced terminal to perform handover Information, where the carrier information includes one of the following: physical frequency point information, physical carrier number, and logical carrier number. The method according to any one of claims 2 to 9, wherein if the advanced terminal switches to a second area of a target advanced base station, and the second area of the target advanced base station and the month The first area of the advanced base station of the service is located on a different carrier, and the advanced base station is switched to the second area of the neighboring area advanced base station or the neighboring area. The conventional base station includes:  The advanced terminal switches from a carrier where the first area of the serving advanced base station is located to a target carrier where the second area of the target advanced base station is located;  The advanced terminal switches from a first region of the target carrier of the target advanced base station to a second region of the target carrier of the target advanced base station. The method of claim 18, wherein the target carrier that is switched from the carrier where the first area of the trafficking base station is located to the second area of the neighboring area advanced base station includes:  The serving advanced base station sends a handover command message in its first area, instructing the advanced terminal to switch to the neighboring advanced base station; and/or  After receiving the handover command message, the advanced terminal sends a handover indication message to the serving advanced base station, and switches to the target carrier of the target advanced base station. The method of claim 19, wherein before the sending advanced base station sends the handover command message, the method further includes:  The serving advanced base station receives a request message from the advanced terminal. The method according to claim 19, wherein the information carried in the handover indication message includes at least one of the following: an action codeword in which the advanced terminal starts to perform handover, and a target advanced base station to be switched to Information and target carrier information under the target advanced base station. The method according to claim 21, wherein, if the advanced terminal is a multi-channel terminal, the information carried in the handover indication message further includes: a carrier of a channel used by the advanced terminal to perform handover Information, where the carrier information includes one of the following: physical frequency point information, physical carrier number, and logical carrier number. The method of claim 18, wherein the switching from the first area of the target carrier of the target advanced base station to the second area of the neighboring advanced base station by the advanced terminal comprises:  Sending, by the target advanced base station, a message to the advanced terminal in a first area of the target carrier, instructing the advanced terminal to perform area conversion;  The advanced terminal receives the message, and switches from the first region of the target advanced to the second region of the target advanced base station according to the indication of the message. A switching system, comprising: an advanced base station, configured to send indication information or a neighboring area broadcast message of a second area of the advanced base station to an advanced terminal in a first area thereof, where the indication information And configured to instruct the advanced terminal to receive the neighbor broadcast message in a second area of the advanced base station;  The advanced terminal, in the first area of the advanced base station, is configured to receive the indication information sent by the advanced base station or the neighboring area broadcast message, obtain the content of the neighboring area broadcast message, and obtain the content according to the obtained The content of the neighboring area broadcast message is switched to the second area of the neighboring area advanced base station or the neighboring area traditional base station. A method for acquiring a neighboring cell broadcast message, characterized in that, for an advanced terminal operating in a first area serving an advanced base station, the method includes: the advanced terminal acquiring a location sent by the advanced base station of the service The content of the neighboring area broadcast message serving the second area of the advanced base station. The method of claim 25, wherein the acquiring, by the advanced terminal, the neighboring broadcast message comprises:  And transmitting, by the serving advanced base station, the content of the neighboring area broadcast message of the second area serving the advanced base station in the first area; The advanced terminal receives the content of the neighboring area broadcast message. 27. The method of claim 26, wherein the manner in which the advanced base station transmits the content of the neighboring area broadcast message of the second area in the first area comprises: broadcasting or unicast. The method of claim 27, wherein when the advanced base station transmits the content of the neighboring area broadcast message of the second area by means of a broadcast, the serving advanced base station passes the following One of the modes sends the content of the neighboring area broadcast message of the second area:  The serving advanced base station carries the content of the neighboring area broadcast message of the second area in the neighboring area broadcast message of the first area;  The serving advanced base station carries the content of the neighboring area broadcast message of the second area in a superframe header of its first area;  And the serving advanced base station carries the content of the neighboring area broadcast message of the second area in the system configuration description message;  The serving advanced base station carries the content of the neighboring area broadcast message of the second area in the additional broadcast message. The method according to any one of claims 26 to 28, wherein the parameter carried in the neighboring area broadcast message of the second area of the serving advanced base station comprises: system information of a neighboring area traditional base station And system information of the second area of the neighboring area advanced base station, where the system information includes: carrier frequency information, and preamble sequence information.