CN103634865B - A kind of changing method of user equipment, base station, user equipment and switching system - Google Patents

A kind of changing method of user equipment, base station, user equipment and switching system Download PDF

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Publication number
CN103634865B
CN103634865B CN201210307653.5A CN201210307653A CN103634865B CN 103634865 B CN103634865 B CN 103634865B CN 201210307653 A CN201210307653 A CN 201210307653A CN 103634865 B CN103634865 B CN 103634865B
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CN
China
Prior art keywords
user equipment
base station
message
according
switched
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CN201210307653.5A
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Chinese (zh)
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CN103634865A (en
Inventor
郭锐
龚磊
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华为技术有限公司
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Priority to CN201210307653.5A priority Critical patent/CN103634865B/en
Publication of CN103634865A publication Critical patent/CN103634865A/en
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Publication of CN103634865B publication Critical patent/CN103634865B/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/16Performing reselection for specific purposes
    • H04W36/20Performing reselection for specific purposes for optimising the interference level
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D70/00Techniques for reducing energy consumption in wireless communication networks

Abstract

The embodiment of the invention discloses a kind of changing method of user equipment, base station, user equipment and switching system, upward signal power limited users equipment can in time be switched, it is ensured that user equipment proper communication.Concrete scheme is:After the situation that there is adjacent frequency interference is known in base station, the first downstream message is sent to the user equipment in base station range, the user equipment reduction transmit power that the first downstream message is used to indicate in base station range;Base station receives first user equipment and the signal sent after power is reduced according to the first downstream message, and first user equipment is according to the normal user equipment that communicated after the first downstream message reduction power;Base station in its coverage according to known to user equipment and first user equipment determine second user equipment, second user equipment refers to upward signal power limited users equipment in base station range;Base station switches over to second user equipment.The embodiment of the present invention is applied to communication technical field.

Description

A kind of changing method of user equipment, base station, user equipment and switching system

Technical field

The present invention relates to communication technical field, more particularly to a kind of changing method of user equipment, base station, user equipment and Switching system.

Background technology

Current frequency spectrum using being fixed allocation, TV business using hundreds of million propagation characteristics of below 800MHz it is good, cover excellent The big frequency spectrum of gesture, but there are a large amount of frequency ranges being underutilized in this section of frequency spectrum.The availability of frequency spectrum in order to better improve, Existing GSM utilizes cognitive radio technology cognitive radio communication environment, dynamically detects and efficiently access sky Not busy radio frequency band, is such as linked into white spaces of the fixed allocation to television services.

But, when the white spaces of television services are linked into, when TV signals occur in adjacent frequency, FCC standard Member's meeting(Federal Communications Commission, FCC)The transmit power of regulation base station can keep constant, but The maximum transmit power of user equipment needs to drop to 16dBm from 20dBm, is set so as to cause base station to receive certain customers The upstream message that preparation is sent.

The content of the invention

Embodiments of the invention provide a kind of changing method of user equipment, base station, user equipment and switching system, can Upward signal power limited users equipment is timely switched, it is ensured that user equipment proper communication.

To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that:

In a first aspect, embodiments of the invention provide a kind of method for user device switching, the method includes:Base station is known and is deposited After the situation of adjacent frequency interference, the first downstream message is sent to the user equipment in the base station range, under described first The user equipment reduction transmit power that row message is used to indicate in the base station range;

The base station receives first user equipment and the signal sent after power, institute is reduced according to first downstream message The mark that signal carries the first user equipment is stated, the first user equipment is to be reduced according to first downstream message Communicate normal user equipment after power;

The base station in its coverage according to known to the user equipment determine second with the first user equipment User equipment, the second user equipment refers to the user equipment for sending the signal that the base station does not receive, i.e., described base Upward signal power limited users equipment in coverage of standing;

The base station switches over to the second user equipment.

In the first possible implementation, after in a first aspect, the situation that there is adjacent frequency interference is known in base station, should Method also includes:

The base station sends frequency solicitation message to spectrum management entity or database;

The base station receives the feedback result that the spectrum management entity or database send;

The base station determines whether available frequency according to the feedback result;

If the base station determines there is available frequency according to the feedback result, the base station is switched to described any available Frequency, while all user equipmenies are switched into identical frequency;

If the base station determines that frequency can not be used according to the feedback result, disappear to user equipment transmission first is descending Breath, the user equipment reduction transmit power that first downstream message is used to indicate in the base station range.

In second possible implementation, with reference to first aspect or the first possible implementation, base station is obtained After knowing the situation that there is adjacent frequency interference, the method also includes:

The base station determines whether that available carrier wave is switched over;

If the base station determines have available carrier wave to switch over, base station is switched to any available carrier wave, and together When all user equipmenies are switched to identical carrier wave;

If the base station determines to be switched over without available carrier wave, the first downstream message, institute are sent to user equipment The first downstream message is stated for indicating the user equipment reduction transmit power in the base station range.

In the third possible implementation, with reference to first aspect or the first possible implementation or second can The implementation of energy, the base station switches over to the second user equipment and specifically includes:

Before the second user equipment enters into Radio Link Failure state, the base station is sent out to the second user equipment The second downstream message is sent, the Radio Link Failure state refers to the state of the user equipment and base station communication failure, institute The second downstream message is stated for indicating the second user equipment increase transmit power;

The base station sends handover measurement message to the second user equipment, to cause the second user equipment to phase Adjacent cell is measured;

The base station receives the measurement report measured to neighbor cell and the basis that the second user equipment sends The measurement report determines the Target cell that the second user equipment is switched over;

The base station sends handover request message to the Target cell, asks the second user equipment to be switched to described Target cell;

The base station receives the handover request feedback message of the Target cell;

The base station sends switching command to the second user equipment, to cause the second user equipment and the mesh Mark cell sets up connection.

In the 4th kind of possible implementation, with reference to first aspect or the first possible implementation or second can The implementation or the third possible implementation of energy, the base station switch over specific bag to the second user equipment Include:

Before the second user equipment enters into the Radio Link Failure state, the base station sets to the second user Preparation send the second downstream message, and second downstream message is for indicating the second user equipment increase transmit power;

The base station sends handover measurement message to the second user equipment, to cause the second user equipment to institute Carrier wave is stated to measure;

The base station receives the feedback message sent after the second user equipment is measured to the carrier wave;

The feedback message that the base station sends after being measured to the carrier wave according to the second user equipment, determines institute State the target carrier that second user equipment is switched over;

The base station sends carrier switch message to the second user equipment, and the carrier switch message carries target Carrier information, to cause that the second user equipment is switched to the target carrier.

Second aspect, embodiments of the invention provide a kind of method for user device switching, and the method includes:

The user equipment receives the first downstream message that the base station sends, and first downstream message is used to indicate institute State the user equipment reduction transmit power in base station range;

The user equipment is configured according to first downstream message, reduces the transmit power of the user equipment;

The user equipment carries the mark of the user equipment to the base station sending signal, the signal;So that Obtain the base station and receive first user equipment according to the signal sent after first downstream message reduction power, the signal is taken Mark with the first user equipment, the first user equipment is to lead to after reducing power according to first downstream message Believe normal user equipment;Also, the base station user equipment and described first use in its coverage according to known to Family equipment determines second user equipment, and the second user equipment refers to the user for sending the signal that the base station does not receive Equipment, i.e., upward signal power limited users equipment in described base station range;

The second user equipment is switched over.

In the first possible implementation, with reference to second aspect, the second user equipment switches over specific bag Include:

The second user equipment receives the handover measurement message that the base station sends, the handover measurement message arrangement institute Second user equipment is stated to measure neighbor cell;

The second user equipment is measured to the neighbor cell;

The second user equipment sends the measurement report measured to the neighbor cell to the base station, to cause The base station determines the Target cell that the second user equipment is switched over according to the measurement report;

The second user equipment receives the switching command that the base station sends;

According to the switching command, the second user equipment is set up with the Target cell and is connected.

In second possible implementation, with reference to second aspect or the first possible implementation, described second User equipment is switched over and specifically included:

The second user equipment receives the handover measurement message that the base station sends, the handover measurement message arrangement institute Second user equipment is stated to measure the carrier wave of the base station;

The second user equipment is measured to carrier wave, and the carrier wave of the base station is surveyed to base station transmission The feedback message of amount, to cause that the base station determines the target that the second user equipment is switched over according to the feedback message Carrier wave;

The second user equipment receives the carrier switch message that the base station sends, and the carrier switch message is carried Target carrier information;

The second user equipment is switched to the target carrier according to the carrier switch message.

In the third possible implementation, with reference to second aspect or the first possible implementation or second can The implementation of energy, the method also includes:

If the user equipment is defined as second user equipment by the base station, enter wireless in the second user equipment Before link failure state, the second user equipment is switched over.

The third aspect, the embodiment of the invention provides a kind of base station, and the base station includes:Transmitting element, receiving unit, the One determining unit and switch unit;

The transmitting element, if after the situation that there is adjacent frequency interference is known for the base station, model is covered to the base station The user equipment in enclosing sends the first downstream message, and first downstream message is used to indicate the user equipment reduction hair Send power;

The receiving unit, for receiving first user equipment according to transmission after first downstream message reduction power Signal, the signal carries the mark of the first user equipment, and the first user equipment is descending according to described first Communicate normal user equipment after message reduction power;

First determining unit, for being used with described first according to the user equipment in known base station range Family equipment determines second user equipment, and the second user equipment refers to the user for sending the signal that the base station does not receive Equipment, i.e., upward signal power limited users equipment in described base station range;

The switch unit, for being switched over to the second user equipment that first determining unit determines.

In the first possible implementation, with reference to the third aspect, the transmitting element is additionally operable to be obtained in the base station After knowing the situation that there is adjacent frequency interference, frequency solicitation message is sent to spectrum management entity or database;

The receiving unit, is additionally operable to receive the feedback result that the spectrum management entity or database send;

The base station also includes judging unit, for determining whether available frequency according to the feedback result;

The transmitting element, if being determined that frequency can not be used according to the feedback result for the judging unit, to described User equipment sends the first downstream message, and first downstream message is used to indicate the user in the base station range Equipment reduction transmit power;

The switch unit, if determining there is available frequency according to the feedback result for the judging unit, will be described Base station is switched to any available frequency, while the user equipment is switched into identical frequency.

In second possible implementation, with reference in the third aspect or the first possible implementation, the base Standing also includes the second determining unit, after the situation that there is adjacent frequency interference is known in the base station, it is determined whether have available Carrier wave is switched over;

If second determining unit determines have available carrier wave to switch over, be switched to for the base station by switch unit Any available carrier wave, while the user equipment is switched to identical carrier wave;

The transmitting element specifically for:

If second determining unit determines to be switched over without available carrier wave, first is sent to the user equipment Downstream message, the user equipment reduction that first downstream message is used to indicate in the base station range sends work( Rate.

Fourth aspect, the embodiment of the invention provides a kind of user equipment, and the user equipment includes:Receiving unit, hair Send unit, power adjustment unit and switch unit;

The receiving unit, for receiving the first downstream message that the base station sends, first downstream message is used for Indicate the user equipment reduction transmit power in the base station range;

First downstream message that the power adjustment unit is used to be received according to the receiving unit is configured, Reduce the transmit power of the user equipment;

The transmitting element, is configured for the power adjustment unit according to first downstream message, reduces institute After stating the transmit power of user equipment, to the base station sending signal, the signal carries the mark of the user equipment;

The switch unit, for being switched over to the second user equipment.

In the first possible implementation, with reference to fourth aspect, the switch unit specifically for:

The handover measurement message that the base station sends is received, is entered according to the handover measurement message arrangement and to neighbor cell Row measurement;

The measurement report measured to the neighbor cell is sent to the base station, to cause the base station according to Measurement report determines the Target cell of switching;

Receive the switching command that the base station sends;

Connection with the Target cell is set up according to the switching command.

In second possible implementation, the first possible implementation with reference to fourth aspect, the switching list Unit specifically for:

Receive the handover measurement message that the base station sends, second user equipment pair described in the handover measurement message arrangement The carrier wave of the base station is measured;

Carrier wave is measured, and the feedback message measured to the carrier wave of the base station is sent to the base station, with So that the base station determines the target carrier that the second user equipment is switched over according to the feedback message;

The carrier switch message that the base station sends is received, the carrier switch message carries target carrier information;

The target carrier is switched to according to the carrier switch message.

5th aspect, the embodiment of the invention provides a kind of switching system, and the system includes:Base station described in the third aspect With the user equipment described in fourth aspect.

Embodiments of the invention provide a kind of changing method of user equipment, base station, user equipment and switching system, the party Method includes after the situation that there is adjacent frequency interference is known in base station, being sent under first to the user equipment in the base station range Row message, the user equipment reduction transmit power that first downstream message is used to indicate in the base station range. According to the signal that the user equipment not received sends, the base station determines up letter in the base station range Number power limited users equipment.Then the base station sends the second downstream message, described second to the second user equipment Downstream message is used to indicate the second user equipment increase transmit power, for being switched over to the second user equipment. So described base station is based on the mode of the transmit power for reducing the user equipment, determines up in the base station range Signal power limited users equipment, then switches in time to upward signal power limited users equipment, such that it is able to Ensure the proper communication of user equipment.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.

Fig. 1 is a kind of changing method flow chart of user equipment provided in an embodiment of the present invention;

Fig. 2 is the changing method flow chart of another user equipment provided in an embodiment of the present invention;

Fig. 3 is a kind of structural representation of base station provided in an embodiment of the present invention;

Fig. 4 is a kind of structural representation of user equipment provided in an embodiment of the present invention;

Fig. 5 is the changing method flow chart of another user equipment provided in an embodiment of the present invention;

Fig. 6 is a kind of changing method flow chart of user equipment that the embodiment of the present invention is also provided;

Fig. 7 is another architecture of base station schematic diagram provided in an embodiment of the present invention;

Fig. 8 is another architecture of base station schematic diagram provided in an embodiment of the present invention.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.

Current frequency spectrum using being fixed allocation, TV business using hundreds of million propagation characteristics of below 800MHz it is good, cover excellent The big frequency spectrum of gesture, but there are a large amount of frequency ranges being underutilized, i.e. white spaces in this section of frequency spectrum.Existing mobile communication system System utilizes cognitive radio technology cognitive radio communication environment, can dynamically detect and efficiently access the blank of television services Frequency range.But, specify according to FCC, if the white spaces that GSM accesses TV business are main subscriber signal, TV signals exist When adjacent frequency occurs, in order to avoid the TV signals to adjacent frequency are interfered, the maximum hair of all user equipmenies in base station range Sending power needs to drop to 16dBm from 20dBm.

Embodiment one

A kind of changing method of user equipment is the embodiment of the invention provides, the method is applied to the base of GSM Stand, the GSM can be any cell mobile communication systems, such as LTE(Long Term Evolution, for a long time Evolution technology)、GSM(Global System of Mobile communications, global system for mobile communications)、UMTS (Universal Mobile Telecommunications System, UMTS)Deng.As shown in figure 1, should Method includes:

101st, after the situation that there is adjacent frequency interference is known in base station, sent out to the user equipment in the base station range The first downstream message is sent, the user equipment reduction hair that first downstream message is used to indicate in the base station range Send power.

Wherein, adjacent frequency interference refers to the presence of the channel adjacent with this cell operation channel in adjacent cell, works as adjacent channel In have the situation of adjacent channel interference that signal causes when occurring.Base station is perceived by itself, measurement knows that there is adjacent frequency disturbs Situation, or receive other equipment perceive, measurement adjacent frequency interference message, or database in adjacent frequency disturbed condition Base station is notified before occurring.

For LTE system, the base station can be specifically eNB, if the eNB is obtained has adjacent frequency disturbed condition Afterwards, the eNB specifically sends the first downstream message, first downstream message to all user equipmenies in RRC connected states The value of the RRCIEP-Max of user equipment is carried, such as:P-Max=16dBm, the value of the user device configuration RRCIEP-Max, Value according to the RRCIEP-Max adjusts the transmit power of itself.

102nd, the base station receives first user equipment and the letter sent after power is reduced according to first downstream message Number, the signal carries the mark of the first user equipment, and the first user equipment is descending to disappear according to described first Communicate normal user equipment after breath reduction power.

After the user equipment receives the first downstream message that the base station sends, according to first downstream message Reduce the transmit power of itself.Then, all mark with the user equipment in the signal that the user equipment is sent to base station Know.The mark of the user equipment can be Cell Radio Network Temporary Identifier/Identity, Cell-RNTI(Cell Radio Network Temporary Identifier,C-RNTI), international mobile equipment identification number(International Mobile Equipment Identification Number,IMEI), the agreement that interconnects between network(Internet Protocol,IP)Deng herein not Make specific restriction.

103rd, the user equipment determines with the first user equipment in its coverage according to known to of the base station Second user equipment, the second user equipment refers to the user equipment for sending the signal that the base station does not receive, i.e. institute State upward signal power limited users equipment in base station range.

Assuming that there is the M user equipment of connected state in its coverage known to the base station, the base station is default A period of time in have received N(N<=M)The signal of the individual user equipment, the signal carries the user equipment Mark, then can determine not receive remaining(M-N)The signal that individual user equipment sends, then remaining(M-N)Individual user equipment It is confirmed as upward signal power limited users equipment, i.e., described second user equipment.

104th, the base station switches over to the second user equipment.

The embodiment of the present invention additionally provides a kind of changing method of user equipment, as shown in Fig. 2 the method includes:

201st, the user equipment receives the first downstream message that the base station sends, and first downstream message is used to refer to Show the user equipment reduction transmit power in the base station range.

Wherein, adjacent frequency interference refers to the presence of the channel adjacent with this cell operation channel in adjacent cell, works as adjacent channel In have the situation of adjacent channel interference that signal causes when occurring.Base station is perceived by itself, measurement knows that there is adjacent frequency disturbs Situation, or receive other equipment perceive, measurement adjacent frequency interference message, or database in adjacent frequency disturbed condition Base station is notified before occurring.

For LTE system, the base station can be specifically eNB, if the eNB is obtained has adjacent frequency disturbed condition Afterwards, the eNB specifically sends the first downstream message, first downstream message to all user equipmenies in RRC connected states The value of the RRC IE P-Max of user equipment is carried, such as:P-Max=16dBm.

202nd, the user equipment is configured according to first downstream message, reduces the transmission work(of the user equipment Rate.

After the user equipment receives first downstream message, the value of the RRC IE P-Max is configured, according to institute The value for stating RRC IE P-Max adjusts itself transmit power.

203rd, to the base station sending signal, the signal carries the mark of the user equipment to the user equipment; The signal sent after power, the letter are reduced according to first downstream message to cause that the base station receives first user equipment The mark of the first user equipment number is carried, the first user equipment is to reduce power according to first downstream message After communicate normal user equipment;Also, base station user equipment and described in its coverage according to known to One user equipment determines second user equipment, and the second user equipment refers to the signal that the transmission base station does not receive User equipment, i.e., upward signal power limited users equipment in described base station range.

After the user equipment receives the first downstream message that the base station sends, according to first downstream message Reduce the transmit power of itself.Then, all mark with the user equipment in the signal that the user equipment is sent to base station Know.The mark of the user equipment can be Cell Radio Network Temporary Identifier/Identity, Cell-RNTI(Cell Radio Network Temporary Identifier,C-RNTI), international mobile equipment identification number(International Mobile Equipment Identification Number,IMEI), the agreement that interconnects between network(Internet Protocol,IP)Deng herein not Make specific restriction.

Assuming that there is the M user equipment of connected state in its coverage known to the base station, the base station is default A period of time in have received N(N<=M)The signal of the individual user equipment, the signal carries the user equipment Mark, then can determine not receive remaining(M-N)The signal that individual user equipment sends, then this remaining(M-N)Individual user sets It is standby to be confirmed as upward signal power limited users equipment, i.e., described second user equipment.

204th, the second user equipment is switched over.

A kind of base station 30 is the embodiment of the invention provides, as shown in figure 3, including:Transmitting element 31, receiving unit 32, the One determining unit 33 and switch unit 34.

The transmitting element 31, if after the situation that there is adjacent frequency interference is known for the base station, being covered to the base station 30 The user equipment in the range of lid sends the first downstream message, and first downstream message is used to indicate the base station 30 to cover In the range of the user equipment reduction transmit power.

Wherein, adjacent frequency interference refers to the presence of the channel adjacent with this cell operation channel in adjacent cell, works as adjacent channel In have the situation of adjacent channel interference that signal causes when occurring.Base station 30 is perceived by itself, measurement knows that there is adjacent frequency does Situation about disturbing, or other equipment perception, the message of the adjacent frequency interference of measurement, or database are received in adjacent frequency interference feelings Condition notifies base station 30 before occurring.

For LTE system, the base station 30 can be specifically eNB, if the eNB is obtained has adjacent frequency disturbed condition Afterwards, the transmitting element 31 sends the first downstream messages to all user equipmenies in RRC connected states, and described first descending disappears Breath carries the value of the RRC IE P-Max of user equipment, such as:P-Max=16dBm, the user device configuration RRC IE P- The value of Max, the value according to the RRC IE P-Max adjusts the transmit power of itself.

The receiving unit 32, sends for receiving after first user equipment reduces power according to first downstream message Signal, the signal carries the mark of the first user equipment, and the first user equipment is according under described first Communicate normal user equipment after row message reduction power.

After the first downstream message that the user equipment receives the transmission of the base station 30, descending disappear according to described first Breath reduces the transmit power of itself.Then, the user equipment is all carried in the signal that the user equipment is sent to base station 30 Mark.The mark of the user equipment can be Cell Radio Network Temporary Identifier/Identity, Cell-RNTI(Cell Radio Network Temporary Identifier,C-RNTI), international mobile equipment identification number(International Mobile Equipment Identification Number,IMEI), the agreement that interconnects between network(Internet Protocol, IP)Deng being not especially limited herein.

First determining unit 33, for according to the user equipment in the known coverage of base station 30 and described the One user equipment determines second user equipment, and the second user equipment refers to the signal that the transmission base station 30 does not receive User equipment, i.e., upward signal power limited users equipment in described base station range.

Assuming that having the M user equipment of connected state, the receiving unit in its coverage known to the base station 30 32 have received N within default a period of time(N<=M)The signal of the individual user equipment, the signal carries the use The mark of family equipment, then can determine not receive remaining(M-N)The signal that individual user equipment sends, then described first determines Unit 33 determines remaining(M-N)Individual user equipment is upward signal power limited users equipment, i.e., described second user equipment.

The switch unit 34, for being cut to the second user equipment that first determining unit 33 determines Change.

The embodiment of the present invention additionally provides a kind of user equipment 40, includes as shown in Figure 4:Receiving unit 41, transmitting element 42, power adjustment unit 43 and switch unit 44.

The receiving unit 41, receives the first downstream message that the base station sends, and first downstream message is used to refer to Show the reduction transmit power of the user equipment 40 in the base station range.

Wherein, adjacent frequency interference refers to the presence of the channel adjacent with this cell operation channel in adjacent cell, works as adjacent channel In have the situation of adjacent channel interference that signal causes when occurring.Base station is perceived by itself, measurement knows that there is adjacent frequency disturbs Situation, or receive other equipment perceive, measurement adjacent frequency interference message, or database in adjacent frequency disturbed condition Base station is notified before occurring.

For LTE system, the base station can be specifically eNB, if the eNB is obtained has adjacent frequency disturbed condition Afterwards, the eNB specifically sends the first downstream messages to all user equipmenies 40 in RRC connected states, and described first descending disappears Breath carries the value of the RRC IE P-Max of user equipment 40, such as:P-Max=16dBm.

The power adjustment unit 43, first downstream message for being received according to the receiving unit 41 is carried out Configuration, reduces the transmit power of the user equipment 40.

It is described receive first downstream message with the second receiving unit 41 after, the power adjustment unit 43 configuration institute The value of RRC IE P-Max is stated, the value according to the RRC IE P-Max adjusts itself transmit power.

The transmitting element 42, is configured for the power adjustment unit 43 according to first downstream message, drop After the transmit power of the low user equipment 40, to the base station sending signal, the signal carries the user equipment 40 Mark;The letter sent after power is reduced according to first downstream message to cause that the base station receives first user equipment Number, the signal carries the mark of the first user equipment, and the first user equipment is descending to disappear according to described first Communicate normal user equipment after breath reduction power;Also, the base station in its coverage according to known to the user set Standby to determine second user equipment with the first user equipment, the second user equipment refers to what the transmission base station did not received The user equipment of the signal, i.e., upward signal power limited users equipment 40 in described base station range.

After the receiving unit 41 receives the first downstream message that the base station sends, the power adjustment unit 43 According to the transmit power of first downstream message reduction user equipment 40.Then, the transmitting element 42 is sent out to base station The mark of the user equipment 40 is all carried in the signal for sending.The mark of the user equipment 40 can be that cell-radio network faces When identify(Cell Radio Network Temporary Identifier,C-RNTI), international mobile equipment identification number (International Mobile Equipment Identification Number,IMEI), the association that interconnects between network View(Internet Protocol,IP)Deng being not especially limited herein.

Assuming that having the M user equipment 40 of connected state in its coverage known to the base station, the base station is pre- If a period of time in have received N(N<=M)The signal of the individual user equipment 40, the signal carries the user and sets Standby 40 mark, then can determine not receive remaining(M-N)The signal that individual user equipment sends, then this remaining(M-N)It is individual User equipment is confirmed as upward signal power limited users equipment, i.e., described second user equipment.

The switch unit 44, for being switched over to the second user equipment.

Embodiments of the invention provide a kind of changing method of user equipment, base station, user equipment and switching system, the party After method knows the situation that there is adjacent frequency interference including base station, first is sent to the user equipment in the base station range descending Message, the user equipment reduction transmit power that first downstream message is used to indicate in the base station range.Institute State base station and receive first user equipment according to the signal sent after first downstream message reduction power, the signal is carried There is the mark of the first user equipment, the first user equipment is to be communicated after reducing power according to first downstream message Normal user equipment.The base station is according to upward signal power limited in the signal base station range not received User equipment.Then upward signal power limited users equipment is switched in time, so as to ensure the normal of user equipment Communication.

Embodiment two

As shown in figure 5, the embodiment of the present invention additionally provides a kind of changing method of user equipment, the method includes:

501st, after the situation that there is adjacent frequency interference is known in the base station, the base station is sent out to spectrum management entity or database Send frequency solicitation message.

Wherein, adjacent frequency interference refers to the presence of the channel adjacent with this cell operation channel in adjacent cell, works as adjacent channel In have the situation of adjacent channel interference that signal causes when occurring.Base station is perceived by itself, measurement knows that there is adjacent frequency disturbs Situation, or receive other equipment perceive, measurement adjacent frequency interference message, or database in adjacent frequency disturbed condition Base station is notified before occurring.

For LTE system, the base station can be specifically eNB, if the eNB base stations are known has adjacent frequency interference After situation, frequency handover is done in base station to spectrum management entity or database application other frequencies.Spectrum management entity is to frequency spectrum The device that the mechanism being managed is set, is managed by telecom operators.Database is runed by other special operators.

502nd, the base station receives the feedback result that the spectrum management entity or database send.

Spectrum management entity or database send feedback result to base station, if database, feedback result be one can With the list of frequency spectrum, suitable frequency is determined whether by base station;If spectrum management entity, feedback result is spectrum management Entity is base station selected frequency or no suitable frequency.

503rd, the base station determines whether available frequency according to the feedback result.

If the base station determines there is available frequency according to the feedback result, step 504 is performed;If the base station according to The feedback result determines that frequency can not be used, then perform step 505.

If the 504, the base station determines there is available frequency according to the feedback result, base station is switched to described any available Frequency, while all user equipmenies are switched into identical frequency.

If current TV signals are main subscriber signal, in order to avoid the TV signals to adjacent frequency are interfered, the base station to When the spectrum management entity or database application are to frequency, can directly will be under base station and the base station range it is all User equipment is switched to the frequency.

For example, when base station determines to have available frequency, and determining the target frequency to be switched over, then base station sets to user Preparation send handover request, target frequency, the user that the user equipment switches over is included in the handover request and is set The standby time for switching over and the other parameters information of switching;Then base station and user equipment are switched to the target frequently simultaneously Point.Wherein, the target frequency can be any frequency of the available frequency.

If the 505, the base station determines that frequency can not be used according to the feedback result, in the base station range The user equipment sends the first downstream message, and first downstream message is used to indicate the user equipment reduction to send work( Rate.

Determine that so described base station and the base station are covered without suitable frequency according to the feedback result in the base station When user equipment under lid scope cannot switch in the lump, the base station according to the regulation of FCC, to the base station range Under all user equipmenies in RRC connected states send the first downstream messages, the transmit power for reducing user equipment.

For example, eNB can send the first downstream messages to all user equipmenies in RRC connected states, and described the One downstream message carries the value of the RRC IE P-Max of user equipment, such as:P-Max=16dBm, indicates the user to reduce and sends Power.

506th, the user equipment receives the first downstream message that the base station sends.

507th, the user equipment is configured according to first downstream message, reduces the transmission work(of the user equipment Rate.

The value of the user device configuration RRC IE P-Max so that RRC IE of the user equipment according to the configuration The value of P-Max adjusts the power of itself.

508th, to the base station sending signal, the signal carries the mark of the user equipment to the user equipment.

The mark of the user equipment can be Cell Radio Network Temporary Identifier/Identity, Cell-RNTI(Cell Radio Network Temporary Identifier,C-RNTI), international mobile equipment identification number(International Mobile Equipment Identification Number,IMEI), the agreement that interconnects between network(Internet Protocol, IP)Deng being not especially limited herein.

509th, the base station receives the user equipment and the signal sent after power is reduced according to first downstream message.

After the transmit power that the user equipment reduces itself, the upward signal power limited of certain customers' equipment, this So that base station cannot receive the signal of user equipment transmission.Generally, to retransmit the signal to base station in physical layer pre- for user equipment If after number of times, when being not received by the response message of base station transmission, can also again retransmit preset times in wireless chain control layer, such as Fruit is still not received by the response message of base station, and the user equipment can then enter Radio Link Failure state.The radio chains Road status of fail refers to the state of the user equipment and base station communication failure

510th, the user equipment determines with the first user equipment in its coverage according to known to of the base station Second user equipment, the second user equipment refers to the user equipment for sending the signal that the base station does not receive, i.e. institute State upward signal power limited users equipment in base station range.

Assuming that there is the M user equipment of connected state in its coverage known to the base station, the base station is default A period of time in have received N(N<=M)The signal of the individual user equipment, the signal carries the user equipment Mark, then can determine not receive remaining(M-N)The signal that individual user equipment sends, then remaining(M-N)Individual user equipment It is confirmed as upward signal power limited users equipment, i.e., described second user equipment.

511st, the base station switches over to the second user equipment.

The second user equipment can be switched to other cells by the base station according to actual conditions, it is also possible to according to reality The second user equipment is switched to border situation other carrier waves of coverage.

512nd, the second user equipment is switched over.

Embodiments of the invention provide a kind of method for user device switching, and the method knows there is adjacent frequency interference including base station Situation after, to user equipment send the first downstream message, first downstream message be used for indicate the base station range Interior user equipment reduction transmit power.According to the signal that the user equipment for receiving sends, the base station Determine upward signal power limited users equipment in its coverage, the signal carries the mark of user equipment.It is so described Base station is based on the mode of the transmit power for reducing the user equipment, determines the upward signal power in the base station range Limited users equipment, then switches in time to upward signal power limited users equipment, thereby may be ensured that user The proper communication of equipment.

As shown in fig. 6, the embodiment of the present invention additionally provides a kind of method of user equipment switching, the method includes:

601st, after the situation that there is adjacent frequency interference is known in the base station, the base station determines whether that available carrier wave is carried out Switching.

Wherein, adjacent frequency interference refers to the presence of the channel adjacent with this cell operation channel in adjacent cell, works as adjacent channel In have the situation of adjacent channel interference that signal causes when occurring.Base station is perceived by itself, measurement knows that there is adjacent frequency disturbs Situation, or receive other equipment perceive, measurement adjacent frequency interference message, or database in adjacent frequency disturbed condition Base station is notified before occurring.

If the base station determines have available carrier wave to switch over, step 602 is performed;If the base station is determined without available Carrier wave switch over, then perform step 603.

Loading condition of the base station according to carrier wave, it is determined whether there is carrier wave to carry the base station and the base station and cover All user equipmenies in RRC connected states under lid scope, if the base station determine have carrier wave can carry the base station and All user equipmenies in RRC connected states under the base station range, the then base station determination has available carrier wave to enter Row switching.

If the 602, the base station determines have available carrier wave to switch over, base station is switched to any available carrier wave, And all user equipmenies are switched to identical carrier wave simultaneously.

If the 603, the base station determines to be switched over without available carrier wave, described in the base station range User equipment sends the first downstream message, and first downstream message is used to indicate described user equipment reduction to send work( Rate.

If the base station determines to be switched over without available carrier wave, base station is it needs to be determined that only receive upward signal power The user equipment of limit is switched over.So base station will send the to the user equipment in RRC connected states under base station range One downstream message, indicates the user equipment reduction transmit power.

For example, eNB can send the first downstream messages to all user equipmenies in RRC connected states, and described the One downstream message carries the value of the RRCIEP-Max of user equipment, such as:P-Max=16dBm, indicates the user to reduce and sends work( Rate.

604th, the user equipment receives the first downstream message that the base station sends.

605th, the user equipment is configured according to first downstream message, reduces the transmission work(of the user equipment Rate.

The value of the user device configuration RRCIEP-Max so that RRCIEP- of the user equipment according to the configuration The value of Max adjusts the power of itself.

606th, to the base station sending signal, the signal carries the mark of the user equipment to the user equipment.

The mark of the user equipment can be Cell Radio Network Temporary Identifier/Identity, Cell-RNTI(Cell Radio Network Temporary Identifier,C-RNTI), international mobile equipment identification number(International Mobile Equipment Identification Number,IMEI), the agreement that interconnects between network(Internet Protocol, IP)Deng being not especially limited herein.

607th, the base station receives the user equipment and the signal sent after power is reduced according to first downstream message.

After the transmit power that the user equipment reduces itself, the upward signal power limited of certain customers' equipment, this So that base station cannot receive the signal of user equipment transmission.Generally, to retransmit the signal to base station in physical layer pre- for user equipment If after number of times, when being not received by the response message of base station transmission, can also again retransmit preset times in wireless chain control layer, such as Fruit is still not received by the response message of base station, and the user equipment can then enter Radio Link described in Radio Link Failure state Status of fail refers to the state of the user equipment and base station communication failure.

608th, the user equipment determines with the first user equipment in its coverage according to known to of the base station Second user equipment, the second user equipment refers to the user equipment for sending the signal that the base station does not receive, i.e. institute State upward signal power limited users equipment in base station range.

Assuming that there is the M user equipment of connected state in its coverage known to the base station, the base station is default A period of time in have received N(N<=M)The signal of the individual user equipment, the signal carries the user equipment Mark, then can determine not receive remaining(M-N)The signal that individual user equipment does not send, then this remaining(M-N)Individual use Family equipment is confirmed as upward signal power limited users equipment, i.e., described second user equipment.

609th, the base station switches over to the second user equipment.

610th, the second user equipment is switched over.

The second user equipment can be switched to other cells by the base station according to actual conditions, it is also possible to according to reality The second user equipment is switched to border situation other carrier waves of coverage.

Embodiments of the invention provide a kind of method for user device switching, and the method includes knowing that there is adjacent frequency does when base station After situation about disturbing, the first downstream message is sent to user equipment, first downstream message is used to indicate the base station covering model User equipment reduction transmit power in enclosing.According to the signal that the user equipment for receiving sends, the base Stand and determine upward signal power limited users equipment in the base station range, the signal carries user equipment mark Know.So described base station is based on the mode of the transmit power for reducing the user equipment, determines in the base station range Upward signal power limited users equipment, then switches in time to upward signal power limited users equipment, so that The proper communication of user equipment can be ensured.

Wherein, in above-described embodiment, the base station switches over to the second user equipment, the user equipment according to The detailed process that the configuration of the base station is switched over can include:The second user equipment enters into Radio Link Failure shape Before state, the base station sends the second downstream message to the second user equipment, and the Radio Link Failure state refers to the use The state that family equipment fails with the base station communication, second downstream message is used to indicate the second user equipment increase hair Send power.Then the base station sends handover measurement message to the second user equipment, to cause the second user equipment Neighbor cell is measured, the second user equipment receives the handover measurement message that the base station sends, and is cut according to described Second user equipment described in changing measurement message arrangement is measured to neighbor cell.The second user equipment is to described adjacent small Area is measured, and the measurement report measured to the neighbor cell is sent to the base station, to cause the base station root Determine the Target cell that the second user equipment is switched over according to the measurement report.The base station is according to the second user The measurement report measured to neighbor cell that equipment sends, determines that the target that the second user equipment is switched over is small Area.Then the base station sends handover request message to the Target cell, asks the second user equipment to be switched to described Target cell.After the base station receives the handover request feedback message of the Target cell, the base station is to the second user Equipment sends switching command, and RRC connection messages are specially in LTE system, and the second user equipment receives the base station hair The RRC connection messages for sending, according to the switching command, the second user equipment is set up according to the Target cell and is connected.

The base station switches over to the second user equipment, configuration of the second user equipment according to the base station The detailed process for switching over can also include:Before the second user equipment enters into Radio Link Failure state, the base Stand to the second user equipment send the second downstream message, the Radio Link Failure state refer to the user equipment with it is described The state of base station communication failure, second downstream message is used to indicate the second user equipment increase transmit power.It is described Base station sends handover measurement message to the second user equipment, to cause that the second user equipment is surveyed to the carrier wave Amount.The second user equipment receives the handover measurement message that the base station sends, the described in the handover measurement message arrangement Two user equipmenies are measured to the carrier wave of the base station.The second user equipment is measured to carrier wave, and to the base The feedback message that transmission of standing is measured to the carrier wave of the base station, to cause that the base station determines institute according to the feedback message State the target carrier that second user equipment is switched over.The base station receives the second user equipment and the carrier wave is surveyed The feedback message sent after amount.The feedback that the base station sends after being measured to the carrier wave according to the second user equipment Message, determines the target carrier that the second user equipment is switched over.The base station sends to the second user equipment and carries Ripple handover request, the carrier switch message carries target carrier information, to cause that the second user equipment is switched to institute State target carrier.The second user equipment receives the carrier switch message that the base station sends, and the carrier switch message is taken With target carrier information.The second user equipment is switched to the target carrier according to the carrier switch message.

Embodiment three

As shown in fig. 7, the embodiment of the present invention additionally provides a kind of base station 70, the base station 70 is applied to GSM, The GSM can be LTE, and the base station 70 includes:Transmitting element 71, receiving unit 72, the first determining unit 73, and Switch unit 74 and judging unit 75.

The transmitting element 71, after the situation that there is adjacent frequency interference is known for the base station 70, to spectrum management entity Or database sends frequency solicitation message.

Wherein, adjacent frequency interference refers to the presence of the channel adjacent with this cell operation channel in adjacent cell, works as adjacent channel In have the situation of adjacent channel interference that signal causes when occurring.Base station 70 is perceived by itself, measurement knows that there is adjacent frequency does Situation about disturbing, or other equipment perception, the message of the adjacent frequency interference of measurement, or database are received in adjacent frequency interference feelings Condition notifies base station 70 before occurring.

For LTE system, the base station 70 can be specifically eNB, if the eNB knows the feelings that there is adjacent frequency interference After condition, the transmitting element 71 does frequency handover to spectrum management entity or database application other frequencies.

Spectrum management entity is the device that the mechanism being managed to frequency spectrum is set, and is managed by telecom operators.Database It is to be runed by other special operators.

The receiving unit 72, for receiving the feedback result that the spectrum management entity or database send.

Spectrum management entity or database send feedback result to base station 70, if database, feedback result is one The list of usable spectrum, suitable frequency is determined whether by base station 70;If spectrum management entity, feedback result is frequency spectrum Management entity is the frequency or no suitable frequency of the selection of base station 70.

The judging unit 75, for determining whether available frequency according to the feedback result.

The switch unit 74, if determining there is available frequency according to the feedback result for the judging unit, by institute State base station 70 and be switched to any available frequency, while the user equipment is switched into identical frequency.

The transmitting element 71, if be additionally operable to the judging unit 75 to be determined that frequency can not be used according to the feedback result, The first downstream message is sent to the user equipment, first downstream message is used to indicate in the coverage of the base station 70 The user equipment reduction transmit power.

Determined without suitable frequency, so described base station 70 and institute according to the feedback result in the judging unit 75 When stating the user equipment under the coverage of base station 70 and cannot switch in the lump, the transmitting element 71 according to the regulation of FCC, to All user equipmenies in RRC connected states under the coverage of the base station 70 send the first downstream message, are used for reducing The transmit power of family equipment.

For example, the transmitting element 71 can be descending to all user equipmenies transmissions first in RRC connected states Message, first downstream message carries the value of the RRC IE P-Max of user equipment, such as:P-Max=16dBm, indicates the use Family reduces transmit power.

The receiving unit 72, sends for receiving after first user equipment reduces power according to first downstream message Signal, the signal carries the mark of the first user equipment, and the first user equipment is according under described first Communicate normal user equipment after row message reduction power.

After the transmit power that the user equipment reduces itself, the upward signal power limited of certain customers' equipment, this So that receiving unit 72 cannot receive the signal of upward signal power limited users equipment transmission.Generally, user equipment exists After physical layer retransmits the signal preset times to base station 70, when being not received by the response message of the transmission of base station 70, can also be in nothing Wired link key-course retransmits preset times again, if being still not received by the response message of base station 70, the user equipment then can Into Radio Link Failure state.

First determining unit 73, for according to the user equipment in the known coverage of base station 70 and described the One user equipment determines second user equipment, and the second user equipment refers to the signal that the transmission base station 70 does not receive User equipment, i.e., upward signal power limited users equipment in the described coverage of base station 70.

The switch unit 74, for being switched over to the second user equipment that first determining unit determines.

Current TV signals are main subscriber signal, in order to avoid the TV signals to adjacent frequency are interfered, transmitting element 71 to When the spectrum management entity or database application are to frequency, can directly by under base station 70 and the coverage of the base station 70 All user equipmenies are switched to the frequency.

For example, when the judging unit 75 determines to have available frequency, and determine the target frequency to be switched over, then cut Change unit 74 and send handover request to user equipment, the target that the user equipment is switched over is included in the handover request The other parameters information of frequency, the time that the user equipment is switched over and switching;Then base station 70 and user equipment are same When be switched to the target frequency.

Wherein, the target frequency can be any frequency of the available frequency.

Embodiments of the invention provide a kind of base station, the base station include transmitting element, receiving unit, the first determining unit, Switch unit and judging unit.After the situation that there is adjacent frequency interference is known in the base station, first by transmitting element to spectrum management Entity or database application frequency, then judging unit according to the feedback result of spectrum management entity or Database Feedback judge be No to have available frequency to switch over, if judging unit determines there is an available frequency, switch unit is by the base station and the base User equipment under the coverage stood is switched to target frequency, if judging unit determine can not use frequency, transmitting element to User equipment sends the first downstream message, and first downstream message is used to indicate the user in the base station range Equipment reduction transmit power.Then the signal that the user equipment for being received according to receiving unit sends, the base station The first determining unit determine second user equipment, the signal carries the mark of user equipment, the second user equipment It is upward signal power limited users equipment in the base station range.Then switch unit is to the second user equipment Switch over.So described base station is based on the mode of the transmit power for reducing the user equipment, determines the base station covering model Interior upward signal power limited users equipment is enclosed, then upward signal power limited users equipment is cut in time Change, thereby may be ensured that the proper communication of user equipment.

Example IV

As shown in figure 8, the embodiment of the present invention additionally provides a kind of base station 80, the base station 80 is applied to GSM, The GSM can be LTE, and the base station 80 includes:Second determining unit 81, transmitting element 82, receiving unit 83, the One determining unit 84 and switch unit 85.

Second determining unit 81, after the situation that there is adjacent frequency interference is known in the base station 80, it is determined that described Whether user equipment has available carrier wave to switch over.

Whether according to the loading condition of carrier wave, determining other carrier waves of service area can carry second determining unit 81 All user equipmenies in RRC connected states under the base station 80 and the coverage of the base station 80, if described second determines Unit 81 determines to have in the coverage of the base station 80 carrier wave can carry the base station 80 and the coverage of the base station 80 Under all user equipmenies in RRC connected states, then second determining unit 81 determine there is available carrier wave to switch over.

The transmitting element 82, if determining to be switched over without available carrier wave for second determining unit 81, The first downstream message is sent to the user equipment, first downstream message is used to indicate in the coverage of the base station 80 The user equipment reduction transmit power.

If second determining unit 81 determines to be switched over without available carrier wave, base station 80 is it needs to be determined that only will be upper Row signal power limited users equipment is switched over.So described transmitting element 82 will be to being under the coverage of base station 80 The user equipment of RRC connected states sends the first downstream message, indicates the user equipment reduction transmit power.

For example, the transmitting element 82 can be descending to all user equipmenies transmissions first in RRC connected states Message, first downstream message carries the value of the RRC IE P-Max of user equipment, such as:P-Max=16dBm, indicates the use Family reduces transmit power.

The receiving unit 83, sends for receiving after first user equipment reduces power according to first downstream message Signal, the signal carries the mark of the first user equipment, and the first user equipment is according under described first Communicate normal user equipment after row message reduction power.

After the transmit power that the user equipment reduces itself, the upward signal power limited of certain customers' equipment, this So that receiving unit 83 cannot receive the signal of upward signal power limited users equipment transmission.Generally, user equipment exists After physical layer retransmits the signal preset times to base station 80, when being not received by the response message of the transmission of base station 80, can also be in nothing Wired link key-course retransmits preset times again, if being still not received by the response message of base station 80, the user equipment then can Into Radio Link Failure state.

First determining unit 84, for according to the user equipment in the known coverage of base station 80 and described the One user equipment determines second user equipment, and the second user equipment refers to the signal that the transmission base station 80 does not receive User equipment, i.e., upward signal power limited users equipment in the described coverage of base station 80.

The switch unit 85, for being switched over to the second user equipment.

If second determining unit 84 determines have available carrier wave to switch over, switch unit 85 is additionally operable to, by institute State base station 80 and be switched to any available carrier wave, while the user equipment is switched to identical carrier wave.

Whether according to the loading condition of carrier wave, determining other carrier waves of service area can carry second determining unit 84 All user equipmenies in RRC connected states under the base station 80 and the coverage of the base station 80, if the base station 80 is true Determining coverage has the carrier wave can to carry all under the base station 80 and the coverage of the base station 80 in RRC connected states User equipment, the then determination of the base station 80 has available carrier wave to switch over.

Embodiments of the invention provide a kind of base station, the base station include the second determining unit, transmitting element, receiving unit, First determining unit and switch unit.The base station is changed or will changed detecting adjacent frequency signal, is passed through first Second determining unit determines whether coverage has available other carrier waves, and switch unit is direct if having available other carrier waves User equipment under the base station and the base station range is switched in the available target carrier.If without it is available its Its carrier wave, then to user equipment the first downstream message of transmission, first downstream message is used to indicate the base station transmitting element User equipment reduction transmit power in coverage.Then the user equipment for being received according to receiving unit sends The signal, the signal carries the customer equipment identification, and the first determining unit of the base station determines that second user sets Standby, the second user equipment is upward signal power limited users equipment in the base station range.So described base The mode of the transmit power based on the reduction user equipment of standing, determines that the upward signal power in the base station range is received The user equipment of limit, then switches in time to upward signal power limited users equipment, thereby may be ensured that user sets Standby proper communication.

Switch unit 74 or the second user equipment of switch unit 85 pairs in above-described embodiment three and four are switched over Specifically include:

Before the second user equipment enters into Radio Link Failure state, sent under second to the second user equipment Row message, second downstream message is used to indicate the second user equipment increase transmit power;Set to the second user Preparation send handover measurement message, to cause that the second user equipment is measured to neighbor cell;Then according to described second The measurement report measured to neighbor cell that user equipment sends, determines the target that the second user equipment is switched over Cell;Handover request message is sent to the Target cell, asks the second user equipment to be switched to the Target cell;Connect The handover request feedback message for receiving the Target cell sends switching command to the second user equipment, has in LTE system Body is RRC connection messages, to cause that the second user equipment and the Target cell set up connection.

Switch unit 74 or the second user equipment of switch unit 85 pairs in above-described embodiment are switched over can be with Specifically include:

Before the second user equipment enters into Radio Link Failure state, sent under second to the second user equipment Row message, second downstream message is used to indicate the second user equipment increase transmit power;Set to the second user Preparation send handover measurement message, to cause that the user equipment is measured to the carrier wave.Receive the second user equipment The feedback message sent after being measured to the carrier wave.Sent out after being measured to the carrier wave according to the second user equipment The feedback message for sending, determines the target carrier that the second user equipment is switched over.Sent to the second user equipment and carried Ripple handover request, the carrier switch message carries target carrier information, to cause that the second user equipment is switched to institute State target carrier.

Embodiment five,

As shown in figure 4, the embodiment of the present invention additionally provides a kind of user equipment 40, including:Receiving unit 41, transmitting element 42nd, power adjustment unit 43 and switch unit 44.

Wherein, the receiving unit 41, for receiving the first downstream message that the base station sends, described first descending disappears Cease for indicating the reduction transmit power of the user equipment 40 in the base station range.

The power adjustment unit 43, first downstream message for being received according to the receiving unit is matched somebody with somebody Put, reduce the transmit power of the user equipment 40.

The transmitting element 42, is configured for the power adjustment unit 43 according to first downstream message, drop After the transmit power of the low user equipment 40, to the base station sending signal, the signal carries the user equipment 40 Mark;The letter sent after power is reduced according to first downstream message to cause that the base station receives first user equipment Number, the signal carries the mark of the first user equipment, and the first user equipment is descending to disappear according to described first Communicate normal user equipment after breath reduction power;Also, the base station in its coverage according to known to the user set Standby to determine second user equipment with the first user equipment, the second user equipment refers to what the transmission base station did not received The user equipment of the signal, i.e., upward signal power limited users equipment 40 in described base station range.

The switch unit 44, for being switched over to the second user equipment.

Optionally, the switch unit 44 is specifically for receiving the handover measurement message that the base station sends, according to described Handover measurement message arrangement is simultaneously measured to neighbor cell.

The measurement report measured to the neighbor cell is sent to the base station, to cause the base station according to Measurement report determines the Target cell of switching.

Receive the switching command that the base station sends.

Connection with the Target cell is set up according to the switching command.

Wherein, the switching command can be specifically RRC connection messages.

Optionally, the switch unit 44 also particularly useful for:The handover measurement message that the base station sends is received, it is described to cut Second user equipment described in changing measurement message arrangement is measured to the carrier wave of the base station.Carrier wave is measured, and to institute State base station and send the feedback message measured to the carrier wave of the base station, to cause the base station true according to the feedback message The target carrier that the fixed second user equipment is switched over.Receive the carrier switch message that the base station sends, the carrier wave Handover request carries target carrier information.

The target carrier is switched to according to the carrier switch message.

A kind of user equipment is the embodiment of the invention provides, the user equipment includes that receiving unit, transmitting element, power are adjusted Whole unit and switch unit.After the user equipment knows the situation that there is adjacent frequency interference in base station first, receiving unit receives institute The first downstream message of base station transmission is stated, first downstream message is used to indicate the user in the base station range Equipment reduction transmit power.Then first downstream message that the power adjustment unit is received according to the receiving unit Configured, reduced the transmit power of the user equipment.The transmitting element is taken to the base station sending signal, the signal Mark with the user equipment;Reduced according to first downstream message with causing that the base station receives first user equipment The signal sent after power, the signal carries the mark of the first user equipment, according to the first user equipment Communicate normal user equipment after the first downstream message reduction power;Also, the base station its covering model according to known to Enclose the interior user equipment and determine second user equipment with the first user equipment, the second user equipment refers to that transmission is described The user equipment of the signal that base station does not receive, i.e., upward signal power limited users set in described base station range It is standby.So described switch unit is switched over to the second user equipment, so as to ensure the proper communication of user equipment.

The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims (12)

1. a kind of changing method of user equipment, it is characterised in that including:
After the situation that there is adjacent frequency interference is known in base station, disappear to the user equipment transmission first in the base station range is descending Breath, the user equipment reduction transmit power that first downstream message is used to indicate in the base station range;
The base station receives first user equipment and the signal sent after power, the letter is reduced according to first downstream message The mark of the first user equipment number is carried, the first user equipment is to reduce power according to first downstream message After communicate normal user equipment;
The base station in its coverage according to known to the user equipment determine second user with the first user equipment Equipment, the second user equipment refers to the user equipment for sending the signal that the base station does not receive, i.e., described base station is covered Upward signal power limited users equipment in the range of lid;
The base station switches over to the second user equipment;
After the situation that there is adjacent frequency interference is known in the base station, methods described also includes:
The base station determines whether that available carrier wave is switched over;
If the base station determines have available carrier wave to switch over, base station is switched to any available carrier wave, and simultaneously will All user equipmenies are switched to identical carrier wave;
If the base station determines to be switched over without available carrier wave, sent to the user equipment in the base station range First downstream message, first downstream message is used to indicate the user equipment reduction transmit power.
2. method according to claim 1, it is characterised in that after the situation that there is adjacent frequency interference is known in base station, also include:
The base station sends frequency solicitation message to spectrum management entity or database;
The base station receives the feedback result that the spectrum management entity or database send;
The base station determines whether available frequency according to the feedback result;
If the base station determines there is available frequency according to the feedback result, the base station is switched to any available frequency Point, while all user equipmenies are switched into identical frequency;
If the base station determines that frequency can not be used according to the feedback result, to the user in the base station range Equipment sends the first downstream message, and first downstream message is used to indicate the user equipment reduction transmit power.
3. method according to claim 1, it is characterised in that the base station switches over tool to the second user equipment Body includes:
Before the second user equipment enters into Radio Link Failure state, the base station sends the to the second user equipment Two downstream messages, the Radio Link Failure state refers to the state of the user equipment and base station communication failure, described the Two downstream messages are used to indicate the second user equipment increase transmit power;
The base station sends handover measurement message to the second user equipment, to cause the second user equipment to adjacent small Area measures;
The base station receives the measurement report measured to neighbor cell of the second user equipment transmission and according to described Measurement report determines the Target cell that the second user equipment is switched over;
The base station sends handover request message to the Target cell, asks the second user equipment to be switched to the target Cell;
The base station receives the handover request feedback message of the Target cell;
The base station sends switching command to the second user equipment, to cause the second user equipment and the target small Area sets up connection.
4. method according to claim 1, it is characterised in that the base station switches over tool to the second user equipment Body includes:
Before the second user equipment enters into Radio Link Failure state, the base station sends the to the second user equipment Two downstream messages, second downstream message is used to indicate the second user equipment increase transmit power;
The base station sends handover measurement message to the second user equipment, to cause that the second user equipment is entered to carrier wave Row measurement;
The base station receives the feedback message sent after the second user equipment is measured to the carrier wave;
The feedback message that the base station sends after being measured to the carrier wave according to the second user equipment, determines described the The target carrier that two user equipmenies are switched over;
The base station sends carrier switch message to the second user equipment, and the carrier switch message carries target carrier Information, to cause that the second user equipment is switched to the target carrier.
5. a kind of changing method of user equipment, it is characterised in that the method includes:
The user equipment receives the first downstream message that base station sends, and first downstream message is used to indicate the base station to cover User equipment reduction transmit power in the range of lid;
The user equipment is configured according to first downstream message, reduces the transmit power of the user equipment;
The user equipment carries the mark of the user equipment to the base station sending signal, the signal;To cause institute State base station and receive first user equipment according to the signal sent after first downstream message reduction power, the signal is carried The mark of the first user equipment, the first user equipment is to be communicated just after reducing power according to first downstream message Normal user equipment;Also, the base station in its coverage according to known to the user equipment set with the first user Standby to determine second user equipment, the second user equipment refers to that the user for sending the signal that the base station does not receive sets It is standby, i.e., upward signal power limited users equipment in described base station range;
The second user equipment is switched over;
The second user equipment is switched over and specifically included:
The second user equipment receives the handover measurement message that the base station sends, the described in the handover measurement message arrangement Two user equipmenies are measured to the carrier wave of the base station;
The second user equipment is measured to carrier wave, and sends what the carrier wave of the base station was measured to the base station Feedback message, to cause that the base station determines that the target that the second user equipment is switched over is carried according to the feedback message Ripple;
The second user equipment receives the carrier switch message that the base station sends, and the carrier switch message carries target Carrier information;
The second user equipment is switched to the target carrier according to the carrier switch message.
6. method according to claim 5, it is characterised in that the second user equipment is switched over and specifically included:
The second user equipment receives the handover measurement message that the base station sends, and the handover measurement message is described for making Second user equipment is measured to neighbor cell;
The second user equipment is measured to the neighbor cell;
The second user equipment sends the measurement report measured to the neighbor cell to the base station, described to cause Base station determines the Target cell that the second user equipment is switched over according to the measurement report;
The second user equipment receives the switching command that the base station sends;
According to the switching command, the second user equipment is set up with the Target cell and is connected.
7. method according to claim 5, it is characterised in that including:
If the user equipment is defined as second user equipment by the base station, Radio Link is entered in the second user equipment Before status of fail, the second user equipment is switched over, the Radio Link Failure state refer to the user equipment with it is described The state of base station communication failure.
8. a kind of base station, it is characterised in that including:Transmitting element, receiving unit, the first determining unit and switch unit;
The transmitting element, after the situation that there is adjacent frequency interference is known for the base station, in the base station range User equipment sends the first downstream message, and first downstream message is used to indicate the user equipment reduction transmit power;
The receiving unit, the letter sent after power is reduced for receiving first user equipment according to first downstream message Number, the signal carries the mark of the first user equipment, and the first user equipment is descending to disappear according to described first Communicate normal user equipment after breath reduction power;
First determining unit, for being set with the first user according to the user equipment in known base station range Standby to determine second user equipment, the second user equipment refers to that the user for sending the signal that the base station does not receive sets It is standby, i.e., upward signal power limited users equipment in described base station range;
The switch unit, for being switched over to the second user equipment that first determining unit determines;
The base station also includes:Second determining unit, after the situation that there is adjacent frequency interference is known in the base station, it is determined that being It is no to there is available carrier wave to switch over;
If second determining unit determines have available carrier wave to switch over, be switched to for the base station any by switch unit The available carrier wave, while the user equipment is switched to identical carrier wave;
The transmitting element specifically for:
If second determining unit determines to be switched over without available carrier wave, first is sent to the user equipment descending Message, the user equipment reduction transmit power that first downstream message is used to indicate in the base station range.
9. base station according to claim 8, it is characterised in that
The transmitting element, is additionally operable to after the situation that there is adjacent frequency interference is known in the base station, to spectrum management entity or number Frequency solicitation message is sent according to storehouse;
The receiving unit, is additionally operable to receive the feedback result that the spectrum management entity or database send;
The base station also includes judging unit, for determining whether available frequency according to the feedback result;
The transmitting element, if being determined that frequency can not be used according to the feedback result for the judging unit, to the user Equipment sends the first downstream message, and first downstream message is used to indicate the user equipment in the base station range Reduce transmit power;
The switch unit, if determining there is available frequency according to the feedback result for the judging unit, by the base station Be switched to it is any it is described can use frequency, while the user equipment is switched into identical frequency.
10. a kind of user equipment, it is characterised in that including:Receiving unit, transmitting element, power adjustment unit and switch unit;
The receiving unit, the first downstream message for receiving base station transmission, first downstream message is described for indicating User equipment reduction transmit power in base station range;
The power adjustment unit, first downstream message for being received according to the receiving unit is configured, drop The transmit power of the low user equipment;
The transmitting element, is configured for the power adjustment unit according to first downstream message, reduces the use After the transmit power of family equipment, to the base station sending signal, the signal carries the mark of the user equipment;
The switch unit, for being switched over to second user equipment;
The switch unit also particularly useful for:
The handover measurement message that the base station sends is received, second user equipment is to described described in the handover measurement message arrangement The carrier wave of base station is measured;
Carrier wave is measured, and the feedback message measured to the carrier wave of the base station is sent to the base station, to cause The base station determines the target carrier that the second user equipment is switched over according to the feedback message;
The carrier switch message that the base station sends is received, the carrier switch message carries target carrier information;
The target carrier is switched to according to the carrier switch message.
11. user equipmenies according to claim 10, it is characterised in that the switch unit specifically for:
The handover measurement message that the base station sends is received, is surveyed according to the handover measurement message arrangement and to neighbor cell Amount;
The measurement report measured to the neighbor cell is sent to the base station, to cause the base station according to the measurement Report determines the Target cell of switching;
Receive the switching command that the base station sends;
Connection with the Target cell is set up according to the switching command.
12. a kind of switching systems, it is characterised in that the system includes:Base station and right described in claim any one of 8-9 will Seek the user equipment described in any one of 10-11.
CN201210307653.5A 2012-08-27 2012-08-27 A kind of changing method of user equipment, base station, user equipment and switching system CN103634865B (en)

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CN201210307653.5A CN103634865B (en) 2012-08-27 2012-08-27 A kind of changing method of user equipment, base station, user equipment and switching system
PCT/CN2013/077296 WO2014032453A1 (en) 2012-08-27 2013-06-17 Handover method for user equipment, base station, user equipment, and handover system

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CN101394649A (en) * 2007-09-21 2009-03-25 夏普株式会社 Method and base station for lowering interference between cells in uplink cell communication system
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