CN103179513A - Method and device for obtaining system messages of miniature substations - Google Patents
Method and device for obtaining system messages of miniature substations Download PDFInfo
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- CN103179513A CN103179513A CN2011104348142A CN201110434814A CN103179513A CN 103179513 A CN103179513 A CN 103179513A CN 2011104348142 A CN2011104348142 A CN 2011104348142A CN 201110434814 A CN201110434814 A CN 201110434814A CN 103179513 A CN103179513 A CN 103179513A
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention discloses a method and device for obtaining system messages of miniature substations. The method includes: a user device transmits request messages for requesting the system messages of the miniature substations to a network side and receives responding messages returned by the network side, wherein the responding messages contain the system messages of the miniature substations. By means of the technical scheme, the user device requests and obtains the system messages of the miniature substations by transmitting request messages to the network side, a macro substation or a miniature substation of the network side do not need to broadcast the system messages, accordingly, expenditure in broadcast channels of the miniature substations can be reduced, interference within systems is reduced, and power consumption of the miniature substations is reduced.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of method and device that obtains the femto cell system message.
Background technology
In wireless communication system, most radio communication service all produces from indoor user, and traditional macro base station but can not provide good wireless signal to cover to the indoor small complex environment that waits.For addressing the above problem, the indoor femto cell that waits the small complex environment has appearred being exclusively used in, as femto base station or Home eNodeB etc.Femto cell exists from the base station as macro base station, can arbitrarily be arranged in indoor the grade in the small complex environment by the user, high speed indoor wireless access is provided in simple, cheap mode as the user, in a macro base station residential quarter, can arranges a lot of femto cell.Usually, the wireless network that femto cell is applied to family or small enterprise covers, and in this applied environment, the number of users of femto cell is limited and relatively fixing.
In existing wireless communication system, subscriber equipment (User Equipment, UE) broadcast by system message and obtain system message, comprised the required most parameters of UE in described system message, as be residential quarter selection/reselection, resident and channel configuration etc.For example, in LTE (Long Term Evolution, Long Term Evolution) system, system message comprises Master Information Block (Master Information Block, MIB) and system information block (System Information Block, SIB) 1 to 13.MIB from SIB1-13 corresponding different dispatching cycle by periodic broadcast.
In the research and practice process to prior art, the present inventor's discovery, in existing wireless communication system, the broadcasting of said system message need to take the resource of a large amount of radio frames, for example in existing LTE system, SIB need to take the resource that surpasses 1/20 radio frames.And the characteristics of femto cell are, number of users is limited and relatively fixing, and network condition changes slow, and the most parameters in the system message of femto cell remains unchanged for a long time.Therefore, in the situation that the using miniature base station, still adopt the method for periodic broadcast system message, can cause useless broadcast channel expense, cause the broadcast channel expense larger.
Summary of the invention
The embodiment of the present invention provides a kind of method and device that obtains system message, can solve the larger problem of broadcast channel expense that in prior art, femto cell adopts the broadcast system message mode to cause.
According to an aspect of the embodiment of the present invention, a kind of method of obtaining the femto cell system message comprises:
Subscriber equipment sends and is used for asking the request message of femto cell system message to network side;
Receive the response message that network side returns, described response message carries the system message of described femto cell.
According to an aspect of the embodiment of the present invention, a kind of method of obtaining the femto cell system message comprises:
After subscriber equipment is received the Master Information Block of femto cell broadcasting, send to connect and set up request message to described femto cell;
Receive the connection that described femto cell returns and set up message, the system message that message is carried described femto cell is set up in described connection.
According to an aspect of the embodiment of the present invention, a kind of method of obtaining the femto cell system message comprises:
Macro base station receives the request message that is used for request femto cell system message that subscriber equipment sends, described femto cell be described macro base station from the base station;
Return to response message to described subscriber equipment, described response message carries the system message of described femto cell.
According to an aspect of the embodiment of the present invention, a kind of method of obtaining the femto cell system message comprises:
Femto cell broadcasting Master Information Block is to subscriber equipment, and described Master Information Block comprises link information and indication information, and it oneself is femto cell that described indication information is used to indicate;
Connect according to request and the subscriber equipment of subscriber equipment;
Receive the request message that subscriber equipment sends;
Return to the first response message to subscriber equipment, described the first response message carries the system message of oneself.
According to an aspect of the embodiment of the present invention, a kind of method of obtaining the femto cell system message comprises:
Femto cell broadcasting Master Information Block, described Master Information Block comprises link information and indication information, it oneself is femto cell that described indication information is used to indicate;
Request message is set up in the connection that receives the subscriber equipment transmission;
Return to connect and set up message to described subscriber equipment, described connection is set up message and is carried the system message of oneself.
According to an aspect of the embodiment of the present invention, a kind of subscriber equipment comprises:
Sending module is used for sending for the request message of asking the femto cell system message to network side;
Receiver module is used for receiving the response message that network side returns, and described response message carries the system message of described femto cell.
According to an aspect of the embodiment of the present invention, a kind of subscriber equipment comprises:
Receiver module be used for to receive the Master Information Block of femto cell broadcasting, and receives the connection that described femto cell returns and set up message, and the system message that message is carried described femto cell is set up in described connection;
Sending module is used for after receiver module is received the Master Information Block of femto cell broadcasting, sends to connect and sets up request message to described femto cell.
According to an aspect of the embodiment of the present invention, a kind of macro base station comprises:
Receiver module be used for to receive the request message that is used for request femto cell system message that subscriber equipment sends, described femto cell be described macro base station from the base station;
Sending module is used for returning response message to described subscriber equipment, and described response message carries the system message of described femto cell.
According to an aspect of the embodiment of the present invention, a kind of femto cell comprises:
Broadcast module is used for the broadcasting Master Information Block to subscriber equipment, and described Master Information Block comprises link information and indication information, and it oneself is femto cell that described indication information is used to indicate;
Link block is used for connecting according to request and the subscriber equipment of subscriber equipment;
Receiver module is used for receiving the request message that subscriber equipment sends;
Sending module is used for returning to the first response message to subscriber equipment, and described the first response message carries the system message of oneself.
According to an aspect of the embodiment of the present invention, a kind of femto cell comprises:
Broadcast module is used for the broadcasting Master Information Block, and described Master Information Block comprises link information and indication information, and it oneself is femto cell that described indication information is used to indicate;
Link block, request message is set up in the connection that is used for the transmission of reception subscriber equipment; Return to connect and set up message to described subscriber equipment, described connection is set up message and is carried the system message of oneself.
The disclosed technical scheme of the embodiment of the present invention, employing is sent a request message by subscriber equipment, the system message of the femto cell under current to this subscriber equipment of macro base station request, and then obtain the technical scheme of femto cell system message from the response message that macro base station returns, the mode that has replaced traditional broadcast system message, can reduce the broadcast channel expense of femto cell, the interference between the reduction system reduces femto cell power consumption.
Description of drawings
Fig. 1 is the flow chart of the method for obtaining system message that provides of one embodiment of the invention;
Fig. 2 is the flow chart of the method for obtaining system message that provides of another embodiment of the present invention;
Fig. 3 is the Signalling exchange schematic diagram that existing subscriber equipment and base station connect;
Fig. 4 is the building-block of logic of the subscriber equipment that provides of one embodiment of the invention;
Fig. 5 is the building-block of logic of the subscriber equipment that provides of another embodiment of the present invention;
Fig. 6 is the building-block of logic of the macro base station that provides of one embodiment of the invention;
Fig. 7 is the building-block of logic of the femto cell that provides of one embodiment of the invention;
Fig. 8 is the building-block of logic of the femto cell that provides of another embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of method and device that obtains system message, can solve the larger problem of broadcast channel expense that in prior art, femto cell adopts the broadcast system message mode to cause.Below be elaborated respectively.Following embodiment is take the LTE system as example, but technical solution of the present invention can be widely used in various wireless communication systems.
Embodiment one,
Please refer to Fig. 1, the embodiment of the present invention provides a kind of method of obtaining system message, comprising:
101, subscriber equipment sends and is used for asking the request message of femto cell system message to network side;
102, receive the response message that network side returns, described response message carries the system message of described femto cell.
In the present embodiment, initiatively sent a request message by subscriber equipment, to the system message of network side request femto cell, network side needn't the periodic broadcast system message, in the time of only need to receiving the request message of subscriber equipment, reply the response message that carries the femto cell system message and get final product to subscriber equipment.Thereby, can avoid the taking of broadcast channel reduced the broadcast channel expense, the interference between the reduction system reduces femto cell power consumption.
Wherein, subscriber equipment can on different opportunitys, send a request message to network side.For example:
In a kind of mode, subscriber equipment can detecting when oneself entering the femto cell residential quarter, send a request message to the macro base station under this femto cell, and carry the sign of femto cell at request message.
Subscriber equipment can by various ways such as finger print informations, detect the sign that oneself whether enters the femto cell residential quarter and obtain femto cell.For example, subscriber equipment is by a lane place (Tracking Area, when TA) moving to another lane place, meeting executing location district upgrades (TA Update) flow process, comprise: can receive the message that carries Location Area Identification that current area sends, the Location Area Identification of the Location Area Identification in this message and oneself storage is not simultaneously, subscriber equipment will be learnt and oneself enter new lane place, subscriber equipment will upgrade the Location Area Identification that oneself is stored, simultaneously the current Location Area Identification of informing network side oneself.
Enter the subscriber equipment of femto cell residential quarter, before connecting with this femto cell, can not directly send message to femto cell.But femto cell be subordinated to macro base station from the base station, macro base station is the dominant base of femto cell, stores the system message of each femto cell of its subordinate in macro base station.So, subscriber equipment can send a request message to the macro base station under this femto cell, carries the sign of this femto cell in request message, after macro base station is received request message, return to response message to subscriber equipment, carry the system message of described femto cell in this response message.
In another kind of mode, subscriber equipment can after connecting with current femto cell, directly send a request message to this femto cell.
In the LTE system, system message comprises Master Information Block (MIB) and system information block (SIB) 1 to 13.MIB has comprised basic link information, and subscriber equipment just can connect with the base station according to the link information in MIB.For subscriber equipment can be connected with femto cell, femto cell is as long as broadcast MIB to the subscriber equipment in the residential quarter; Simultaneously, in order to reduce the broadcast channel expense, can not adopt periodic broadcast, and replace the broadcasting of triggering property, trigger condition can be to learn that New Consumers equipment is arranged in this residential quarter is resident.
For example, when subscriber equipment moved to another lane place by a lane place, the executing location district was more after new technological process, and the femto cell in reposition district will be learnt the information that this subscriber equipment is resident.So femto cell can be broadcasted MIB in broadcast channel after learning that subscriber equipment is resident, MIB comprises link information and indication information, and whether described indication information is used to indicate described base station is femto cell.After this subscriber equipment is received the MIB of base station broadcast, connect according to the link information in MIB and base station, and learn that this base station is femto cell, so, after connection foundation is completed, send a request message to this femto cell, directly to this femto cell Request System message.
To sum up, the embodiment of the present invention provides a kind of method of obtaining system message, adopt subscriber equipment initiatively to send a request message, technical scheme to the system message of network side request femto cell, femto cell needn't its system message of periodic broadcast, in the time of only need to receiving the request message of subscriber equipment, the response message of replying carrying system message gets final product to subscriber equipment.Thereby, can avoid the taking of broadcast channel reduced the broadcast channel expense of femto cell, the interference between the reduction system reduces femto cell power consumption.
Embodiment two,
Please refer to Fig. 2, the embodiment of the present invention provides another kind to obtain the method for femto cell system message, comprising:
201, after subscriber equipment is received the Master Information Block of femto cell broadcasting, send to connect and set up request message to described femto cell.
When subscriber equipment moved to another lane place by a lane place, the executing location district was more after new technological process, and the femto cell in reposition district will be learnt the information that this subscriber equipment is resident.Femto cell can be broadcasted MIB in broadcast channel after learning that subscriber equipment is resident, MIB comprises link information and indication information, and whether described indication information is used to indicate described base station is femto cell.After subscriber equipment is received the MIB of femto cell broadcasting, can initiate to connect flow process according to the link information in MIB, in order to connect with femto cell.
Existing connection building process as shown in Figure 3, comprise: subscriber equipment sends to connect to femto cell sets up request message, RRC (Radio Resource Control is set up in request, radio resource control) connect, this connection is set up the sign of carrying subscriber equipment in request message and is set up reason; After femto cell receives that request message is set up in this connection, send to connect and to set up message to subscriber equipment, the wireless resource configuration of carrying this femto cell residential quarter in message is set up in this connection, in order to connect with subscriber equipment; After connection was set up and completed, subscriber equipment sent connection setup complete message, the notice femto cell.
201, receive the connection that described femto cell returns and set up message, the system message that message is carried described femto cell is set up in described connection.
In the present embodiment, can utilize described connection to set up message and come transmission system message, concrete, femto cell is carried at system message to connect and sets up in message, sends to subscriber equipment.
Adopt the present embodiment technical scheme, femto cell needn't its system message of periodic broadcast, only need to receive when request message is set up in connection that subscriber equipment is initiated, and the connection of replying carrying system message is set up message and got final product to subscriber equipment.Thereby, can avoid the taking of broadcast channel reduced the broadcast channel expense of femto cell, the interference between the reduction system reduces femto cell power consumption.
Embodiment three,
The technical scheme that above-described embodiment one and embodiment two describe can be used for the system message that subscriber equipment obtains femto cell first, and in running subsequently, the system message of femto cell may change, and the present embodiment proposes following solution for this kind situation:
A kind of scheme is, when femto cell changes in the system message of oneself, initiatively generate beep-page message, carry the system message after variation in beep-page message, and beep-page message is sent to subscriber equipment, the beep-page message that subscriber equipment sends by receiving femto cell obtains the system message after femto cell changes.Wherein, femto cell can generate separately beep-page message for each subscriber equipment in this residential quarter, that is, and and independent each subscriber equipment of paging.If subscriber equipment leaves this femto cell residential quarter, need to pass through this femto cell by leave group message,, follow-up femto cell is this subscriber equipment of paging no longer.
The another kind scheme is that femto cell is to enter also variation sign of each subscriber equipment generation of resident this residential quarter, not only oneself stores described variation and identifies, and also described variation is identified simultaneously and sends to subscriber equipment.Subscriber equipment receives and stores the variation sign that femto cell sends.This changes the variation that sign is used for the system message of sign femto cell, when the system message of femto cell changes, femto cell changes the variation sign of oneself storing successively according to default rule, for example, the value that changes sign is added 1, and the sign of the variation after again changing sends to subscriber equipment.Subscriber equipment receives the variation sign that femto cell sends.
After subscriber equipment was received at every turn and changed sign, the variation sign that all will newly receive compared with the variation sign of oneself storage, if both values are identical, illustrated that the system message of femto cell does not change, and can process; If both values are different, variation has occured in the system message that femto cell is described, subscriber equipment can initiatively send a request message to femto cell, then system message after changing to the femto cell request receives that femto cell returns carries the response message of the system message after variation, simultaneously, the variation sign that the variation identification renewal oneself that sends according to described femto cell is stored.
Describe for ease of distinguishing, can be with in embodiment one and two, the response message that carries the femto cell system message that network side returns is called the first response message, and the response message that carries the system message after femto cell changes that femto cell in the present embodiment returns is called the second response message.
The present embodiment technical scheme is that the scene that the system message for femto cell changes proposes, in this kind situation, femto cell needn't periodic broadcast its system message after changing, system message after can initiatively changing is carried at and sends to subscriber equipment in beep-page message, also can utilize and change the sign notifying user equipment, when the request of receiving subscriber equipment, reply is carried the response message of the system message after variation to subscriber equipment.Thereby, to have avoided can reducing the broadcast channel expense of femto cell to the taking of broadcast channel, the interference between the reduction system reduces femto cell power consumption.
Embodiment four,
Please refer to Fig. 4, the embodiment of the present invention provides a kind of subscriber equipment, comprising:
Sending module 401 is used for sending for the request message of asking the femto cell system message to network side;
Optionally, this subscriber equipment can also comprise: detection module;
Described detection module is for detection of whether entering the femto cell residential quarter;
Described sending module, concrete being used for sends a request message to the macro base station under this femto cell when entering the femto cell residential quarter, and described request message is carried the sign of described femto cell.
Optionally, this subscriber equipment can also comprise: link block;
Described receiver module, also for the Master Information Block that receives base station broadcast, described Master Information Block comprises link information and indication information, whether described indication information is used to indicate described base station is femto cell;
Described link block is used for connecting according to described link information and described base station;
Described sending module is femto cell if indicate described base station for described indication information, after connection is successfully established, sends a request message to this femto cell.
Optionally, described receiver module can also be used for receiving the beep-page message that femto cell sends when system message changes, and described beep-page message carries the system message after variation.
Optionally, this subscriber equipment can also comprise: memory module and judge module;
Described receiver module also be used for to receive the variation sign that femto cell sends, and described variation sign is that described femto cell is when connecting with subscriber equipment or when system message changes, for described subscriber equipment generates; The response message that carries the system message after variation that receives that femto cell returns;
Described memory module is used for storing the variation sign that described receiver module receives; And the variation of storing according to the variation identification renewal oneself that described femto cell sends identifies;
Described judge module is used for the variation sign of memory module is compared with the new variation sign that receives of described receiver module, judges whether both are identical;
Described sending module if it is different also to be used for the judge module judgement, sends a request message to described femto cell.
Embodiment five,
Please refer to Fig. 5, the embodiment of the present invention also provides another kind of subscriber equipment, comprising:
Sending module 502 is used for after receiver module is received the Master Information Block of femto cell broadcasting, sends to connect and sets up request message to described femto cell.
Embodiment six,
Please refer to Fig. 6, the embodiment of the present invention provides a kind of macro base station, comprising:
Sending module 602 is used for returning response message to described subscriber equipment, and described response message carries the system message of described femto cell.
Embodiment seven,
Please refer to Fig. 7, the embodiment of the present invention provides a kind of femto cell, it is characterized in that, comprising:
Sending module 704 is used for returning to the first response message to subscriber equipment, and described the first response message carries the system message of oneself.
Optionally, this femto cell can also comprise: the paging module;
Described paging module is used for generating beep-page message when system message changes, and described beep-page message carries the system message after variation;
Described sending module also is used for described beep-page message is sent to subscriber equipment.
Optionally, this femto cell can also comprise: identification module;
Described identification module is used to each resident subscriber equipment to generate the variation sign, stores described variation sign, when system message changes, changes the variation sign of oneself storing according to default rule;
Described sending module, the variation sign that also is used for the identification module generation sends to subscriber equipment;
Described sending module also is used for returning to the second response message to subscriber equipment, and described the second response message carries the system message after variation.
Embodiment eight,
Please refer to Fig. 8, the embodiment of the present invention also provides another kind of femto cell, comprising:
To sum up, the embodiment of the present invention four to eight provides multiple subscriber equipment and macro base station and femto cell, adopts these devices, network equipment such as macro base station or femto cell needn't its system messages of periodic broadcast, just can make subscriber equipment obtain the system message of femto cell.Thereby, can avoid the taking of broadcast channel reduced the broadcast channel expense of femto cell, the interference between the reduction system reduces femto cell power consumption.
The above method of obtaining the femto cell system message and the device that the embodiment of the present invention is provided is described in detail, but the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof, should not be construed as limitation of the present invention.Those skilled in the art are in the technical scope that the present invention discloses, and the variation that can expect easily or replacement are within all should being encompassed in protection scope of the present invention.
Claims (22)
1. a method of obtaining the femto cell system message, is characterized in that, comprising:
Subscriber equipment sends and is used for asking the request message of femto cell system message to network side;
Receive the response message that network side returns, described response message carries the system message of described femto cell.
2. method according to claim 1, is characterized in that, described subscriber equipment sends the request message that is used for request femto cell system message and comprises to network side:
Subscriber equipment detects when oneself entering the femto cell residential quarter, sends a request message to the macro base station under this femto cell, and described request message is carried the sign of described femto cell.
3. method according to claim 1, is characterized in that, described subscriber equipment sends the request message that is used for request femto cell system message and comprises to network side:
Subscriber equipment receives the Master Information Block of base station broadcast, and described Master Information Block comprises link information and indication information, and whether described indication information is used to indicate described base station is femto cell;
Connect according to described link information and described base station;
If the described base station of described indication information indication is femto cell, after connection is successfully established, send a request message to this femto cell.
4. arbitrary described method according to claim 1 to 3, is characterized in that, also comprises:
Subscriber equipment receives the beep-page message that femto cell sends when system message changes, described beep-page message carries the system message after variation.
5. arbitrary described method according to claim 1 to 3, is characterized in that, also comprises:
Subscriber equipment receives and stores the variation sign that femto cell sends, and described variation sign is that described femto cell is when connecting with subscriber equipment or when system message changes, for described subscriber equipment generates;
The variation sign of oneself storing and the variation sign that described femto cell sends are compared, if both are different, send a request message to described femto cell, the response message that carries the system message after variation that receives that femto cell returns, and the variation of the variation identification renewal oneself storage that sends according to described femto cell identifies.
6. method of obtaining the femto cell system message is characterized in that:
After subscriber equipment is received the Master Information Block of femto cell broadcasting, send to connect and set up request message to described femto cell;
Receive the connection that described femto cell returns and set up message, the system message that message is carried described femto cell is set up in described connection.
7. a method of obtaining the femto cell system message, is characterized in that, comprising:
Macro base station receives the request message that is used for request femto cell system message that subscriber equipment sends, described femto cell be described macro base station from the base station;
Return to response message to described subscriber equipment, described response message carries the system message of described femto cell.
8. a method of obtaining the femto cell system message, is characterized in that, comprising:
Femto cell broadcasting Master Information Block is to subscriber equipment, and described Master Information Block comprises link information and indication information, and it oneself is femto cell that described indication information is used to indicate;
Connect according to request and the subscriber equipment of subscriber equipment;
Receive the request message that subscriber equipment sends;
Return to the first response message to subscriber equipment, described the first response message carries the system message of oneself.
9. method according to claim 8, is characterized in that, also comprises:
When femto cell changes in system message, generate beep-page message, described beep-page message carries the system message after variation;
Described beep-page message is sent to subscriber equipment.
10. method according to claim 8, is characterized in that, also comprises:
Femto cell is that each resident subscriber equipment generates the variation sign, stores described variation sign, simultaneously described variation sign is sent to subscriber equipment;
When system message changes, change the variation sign of oneself storing according to default rule, and the sign of the variation after changing sends to subscriber equipment;
Receive the request message that subscriber equipment sends;
Return to the second response message to subscriber equipment, described the second response message carries the system message after variation.
11. a method of obtaining the femto cell system message is characterized in that, comprising:
Femto cell broadcasting Master Information Block, described Master Information Block comprises link information and indication information, it oneself is femto cell that described indication information is used to indicate;
Request message is set up in the connection that receives the subscriber equipment transmission;
Return to connect and set up message to described subscriber equipment, described connection is set up message and is carried the system message of oneself.
12. a subscriber equipment is characterized in that, comprising:
Sending module is used for sending for the request message of asking the femto cell system message to network side;
Receiver module is used for receiving the response message that network side returns, and described response message carries the system message of described femto cell.
13. subscriber equipment according to claim 12 is characterized in that, also comprises: detection module;
Described detection module is for detection of whether entering the femto cell residential quarter;
Described sending module, concrete being used for sends a request message to the macro base station under this femto cell when entering the femto cell residential quarter, and described request message is carried the sign of described femto cell.
14. subscriber equipment according to claim 12 is characterized in that, also comprises: link block;
Described receiver module, also for the Master Information Block that receives base station broadcast, described Master Information Block comprises link information and indication information, whether described indication information is used to indicate described base station is femto cell;
Described link block is used for connecting according to described link information and described base station;
Described sending module is femto cell if indicate described base station for described indication information, after connection is successfully established, sends a request message to this femto cell.
15. according to claim 12 to the described subscriber equipment of any one in 14, it is characterized in that:
Described receiver module also is used for receiving the beep-page message that femto cell sends when system message changes, and described beep-page message carries the system message after variation.
16. according to claim 12 to the described subscriber equipment of any one in 14, it is characterized in that, also comprise: memory module and judge module;
Described receiver module also be used for to receive the variation sign that femto cell sends, and described variation sign is that described femto cell is when connecting with subscriber equipment or when system message changes, for described subscriber equipment generates; The response message that carries the system message after variation that receives that femto cell returns;
Described memory module is used for storing the variation sign that described receiver module receives; And the variation of storing according to the variation identification renewal oneself that described femto cell sends identifies;
Described judge module is used for the variation sign of memory module is compared with the new variation sign that receives of described receiver module, judges whether both are identical;
Described sending module if it is different also to be used for the judge module judgement, sends a request message to described femto cell.
17. a subscriber equipment is characterized in that, comprising:
Receiver module be used for to receive the Master Information Block of femto cell broadcasting, and receives the connection that described femto cell returns and set up message, and the system message that message is carried described femto cell is set up in described connection;
Sending module is used for after receiver module is received the Master Information Block of femto cell broadcasting, sends to connect and sets up request message to described femto cell.
18. a macro base station is characterized in that, comprising:
Receiver module be used for to receive the request message that is used for request femto cell system message that subscriber equipment sends, described femto cell be described macro base station from the base station;
Sending module is used for returning response message to described subscriber equipment, and described response message carries the system message of described femto cell.
19. a femto cell is characterized in that, comprising:
Broadcast module is used for the broadcasting Master Information Block to subscriber equipment, and described Master Information Block comprises link information and indication information, and it oneself is femto cell that described indication information is used to indicate;
Link block is used for connecting according to request and the subscriber equipment of subscriber equipment;
Receiver module is used for receiving the request message that subscriber equipment sends;
Sending module is used for returning to the first response message to subscriber equipment, and described the first response message carries the system message of oneself.
20. femto cell according to claim 19 is characterized in that, also comprises: the paging module;
Described paging module is used for generating beep-page message when system message changes, and described beep-page message carries the system message after variation;
Described sending module also is used for described beep-page message is sent to subscriber equipment.
21. femto cell according to claim 19 is characterized in that, also comprises: identification module;
Described identification module is used to each resident subscriber equipment to generate the variation sign, stores described variation sign, when system message changes, changes the variation sign of oneself storing according to default rule;
Described sending module, the variation sign that also is used for the identification module generation sends to subscriber equipment;
Described sending module also is used for returning to the second response message to subscriber equipment, and described the second response message carries the system message after variation.
22. a femto cell is characterized in that, comprising:
Broadcast module is used for the broadcasting Master Information Block, and described Master Information Block comprises link information and indication information, and it oneself is femto cell that described indication information is used to indicate;
Link block, request message is set up in the connection that is used for the transmission of reception subscriber equipment; Return to connect and set up message to described subscriber equipment, described connection is set up message and is carried the system message of oneself.
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