CN103634865A - Switching method for user equipment, base station, user equipment, and switching system - Google Patents

Switching method for user equipment, base station, user equipment, and switching system Download PDF

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Publication number
CN103634865A
CN103634865A CN201210307653.5A CN201210307653A CN103634865A CN 103634865 A CN103634865 A CN 103634865A CN 201210307653 A CN201210307653 A CN 201210307653A CN 103634865 A CN103634865 A CN 103634865A
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China
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described
base station
subscriber equipment
described base
message
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CN201210307653.5A
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Chinese (zh)
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CN103634865B (en
Inventor
郭锐
龚磊
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华为技术有限公司
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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 switching method for user equipment, a base station, user equipment, and a switching system, so that switching for user equipment with the limited uplink signal power can be carried out timely and normal communication of the user equipment can be ensured. According to the concrete scheme, after a base station acquires a situation of adjacent channel interference existence, a first downlink message is sent to user equipment in a base station covering range, wherein the first downlink message is used for indicating the user equipment in the base station covering range to reduce a sending power; the base station receives a signal sent by first user equipment that has reduced the power according to the first downlink message, wherein the first user equipment is one with normal communication after power reduction based on the first downlink message; the base station determines second user equipment according to the known user equipment and the known first user equipment in the covering range, wherein the second user equipment is one with a limited uplink signal power in the base station covering range; and the base station carries out switching on the second user equipment. According to the embodiment of the invention, the switching method for user equipment, the base station, the user equipment, and the switching system are suitable for the communication technology field.

Description

A kind of changing method of subscriber equipment, base station, subscriber equipment and switched system

Technical field

The present invention relates to communication technical field, relate in particular to a kind of changing method, base station, subscriber equipment and switched system of subscriber equipment.

Background technology

Frequency spectrum use is at present fixed allocation, and TV business is used the following frequency spectrum that hundreds of million propagation characteristics are good, covering advantage is large of 800MHz, but in this section of frequency spectrum, has the frequency range of fully not used in a large number.In order better to improve the availability of frequency spectrum, existing mobile communication system is utilized cognitive radio technology cognitive radio communication environment, detects dynamically and effectively accesses idle radio frequency band, as being linked into fixed allocation to the white spaces of television services.

But, when being linked into the white spaces of television services, when TV signal is when adjacent frequency occurs, (the Federal Communications Commission of FCC (Federal Communications Commission), FCC) transmitted power of regulation base station can remain unchanged, but the maximum transmit power of subscriber equipment need to drop to 16dBm from 20dBm, thereby cause base station cannot receive the upstream message that certain customers' equipment sends.

Summary of the invention

Embodiments of the invention provide a kind of changing method, base station, subscriber equipment and switched system of subscriber equipment, upward signal power limited users equipment can be switched timely, guarantee subscriber equipment proper communication.

For achieving the above object, embodiments of the invention adopt following technical scheme:

First aspect, embodiments of the invention provide a kind of method for user device switching, the method comprises: base station is known after the situation that has adjacent frequency interference, subscriber equipment in described base station range sends the first downstream message, and the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power;

Described base station receives first user equipment and reduces according to described the first downstream message the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power;

The second subscriber equipment is determined according to described subscriber equipment in its known coverage and described first user equipment in described base station, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station do not receive, i.e. upward signal power limited users equipment in described base station range;

Switch described the second subscriber equipment described base station.

In the possible implementation of the first, according to first aspect, base station knows that after the situation that has adjacent frequency interference, the method also comprises:

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

Described base station receives the feedback result of described spectrum management entity or database transmission;

Described base station has determined whether available frequency according to described feedback result;

If described base station defines available frequency according to described feedback result, described base station is switched to described arbitrary available frequency, all subscriber equipmenies is switched to identical frequency simultaneously;

If described base station is determined without available frequency according to described feedback result, to subscriber equipment, send the first downstream message, the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power.

In the possible implementation of the second, in conjunction with first aspect or the possible implementation of the first, base station knows that after the situation that has adjacent frequency interference, the method also comprises:

Described base station determines whether that available carrier wave switches;

If described base station defines available carrier wave, switch, base station is switched to described arbitrary available carrier wave, and all subscriber equipmenies is switched to identical carrier wave simultaneously;

If described base station is determined, do not have available carrier wave to switch, to subscriber equipment, send the first downstream message, the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power.

In the third possible implementation, in conjunction with first aspect or possible implementation or the possible implementation of the second of the first, described base station is switched specifically and is comprised described the second subscriber equipment:

Described the second subscriber equipment enters into before Radio Link Failure state, described base station sends the second downstream message to described the second subscriber equipment, described Radio Link Failure state refers to the state of described subscriber equipment and described base station communication failure, and described the second downstream message is used to indicate described the second subscriber equipment and increases transmitted power;

Described base station sends handover measurement message to described the second subscriber equipment, so that described the second subscriber equipment is measured neighbor cell;

Described base station receives the measurement report that neighbor cell is measured of described the second subscriber equipment transmission and determines according to described measurement report the Target cell that described the second subscriber equipment switches;

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

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

Described base station sends switching command to described the second subscriber equipment, so that described the second subscriber equipment and described Target cell connect.

In the 4th kind of possible implementation, in conjunction with first aspect or possible implementation or possible implementation or the third the possible implementation of the second of the first, described base station is switched specifically and is comprised described the second subscriber equipment:

Described the second subscriber equipment enters into before described Radio Link Failure state, and described base station sends the second downstream message to described the second subscriber equipment, and described the second downstream message is used to indicate described the second subscriber equipment and increases transmitted power;

Described base station sends handover measurement message to described the second subscriber equipment, so that described the second subscriber equipment is measured described carrier wave;

Described base station receives described the second subscriber equipment and described carrier wave is measured to the feedback message of rear transmission;

The feedback message of rear transmission is measured according to described the second subscriber equipment in described base station to described carrier wave, determine the target carrier that described the second subscriber equipment switches;

Described base station sends carrier wave to described the second subscriber equipment and switches message, and described carrier wave switches message and carries target carrier information, so that described the second subscriber equipment is switched to described target carrier.

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

Described subscriber equipment receives the first downstream message that described base station sends, and the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power;

Described subscriber equipment is configured according to described the first downstream message, reduces the transmitted power of described subscriber equipment;

Described subscriber equipment is to described base station transmitted signal, and described signal carries the sign of described subscriber equipment; So that receiving first user equipment, described base station reduces according to described the first downstream message the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power; And, the second subscriber equipment is determined according to described subscriber equipment in its known coverage and described first user equipment in described base station, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station do not receive, i.e. upward signal power limited users equipment in described base station range;

Described the second subscriber equipment switches.

In the possible implementation of the first, in conjunction with second aspect, described the second subscriber equipment switches specifically and comprises:

Described the second subscriber equipment receives the handover measurement message that described base station sends, and the second subscriber equipment is measured neighbor cell described in described handover measurement message arrangement;

Described the second subscriber equipment is measured described neighbor cell;

Described the second subscriber equipment sends the measurement report that described neighbor cell is measured to described base station, so that the Target cell that described the second subscriber equipment switches is determined according to described measurement report in described base station;

Described the second subscriber equipment receives the switching command that described base station sends;

According to described switching command, described the second subscriber equipment and described Target cell connect.

In the possible implementation of the second, in conjunction with second aspect or the possible implementation of the first, described the second subscriber equipment switches specifically and comprises:

Described the second subscriber equipment receives the handover measurement message that described base station sends, and the second subscriber equipment is measured the carrier wave of described base station described in described handover measurement message arrangement;

Described the second subscriber equipment is measured carrier wave, and sends to described base station the feedback message that the carrier wave of described base station is measured, so that the target carrier that described the second subscriber equipment switches is determined according to described feedback message in described base station;

Described the second subscriber equipment receives the carrier wave switching message that described base station sends, and described carrier wave switches message and carries target carrier information;

Described the second subscriber equipment switches message according to described carrier wave and is switched to described target carrier.

In the third possible implementation, in conjunction with second aspect or possible implementation or the possible implementation of the second of the first, the method also comprises:

If described subscriber equipment is defined as the second subscriber equipment by described base station, at described the second subscriber equipment, enter before Radio Link Failure state, described the second subscriber equipment switches.

The third aspect, the embodiment of the present invention provides a kind of base station, and described base station comprises: transmitting element, receiving element, the first determining unit and switch unit;

Described transmitting element, if know for described base station, after the situation that has adjacent frequency interference, the described subscriber equipment in described base station range sends the first downstream message, described the first downstream message is used to indicate described subscriber equipment and reduces transmitted power;

Described receiving element, for receiving first user equipment, according to described the first downstream message, reduce the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power;

Described the first determining unit, for determining the second subscriber equipment according to described subscriber equipment in known base station range and described first user equipment, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station do not receive, i.e. upward signal power limited users equipment in described base station range;

Described switch unit, switches for described the second subscriber equipment that described the first determining unit is determined.

In the possible implementation of the first, in conjunction with the third aspect, described transmitting element, also, for knowing in described base station after the situation that has adjacent frequency interference, sends frequency solicitation message to spectrum management entity or database;

Described receiving element, the feedback result also sending for receiving described spectrum management entity or database;

Described base station also comprises judging unit, for having determined whether available frequency according to described feedback result;

Described transmitting element, if determine without available frequency according to described feedback result for described judging unit, to described subscriber equipment, send the first downstream message, the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power;

Described switch unit, if define available frequency for described judging unit according to described feedback result, is switched to described arbitrary available frequency by described base station, described subscriber equipment is switched to identical frequency simultaneously.

In the possible implementation of the second, in the third aspect or the possible implementation of the first, described base station also comprises the second determining unit, for knowing in described base station, exists after the situation that adjacent frequency disturbs, and determines whether that available carrier wave switches;

If described the second determining unit defines available carrier wave, switch, switch unit is switched to described arbitrary available carrier wave by described base station, and described subscriber equipment is switched to identical carrier wave simultaneously;

Described transmitting element specifically for:

If described the second determining unit is determined, do not have available carrier wave to switch, to described subscriber equipment, send the first downstream message, the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power.

Fourth aspect, the embodiment of the present invention provides a kind of subscriber equipment, and described subscriber equipment comprises: receiving element, transmitting element, power adjustment unit and switch unit;

Described receiving element, the first downstream message sending for receiving described base station, the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power;

Described power adjustment unit is configured for described the first downstream message receiving according to described receiving element, reduces the transmitted power of described subscriber equipment;

Described transmitting element, is configured according to described the first downstream message for described power adjustment unit, reduces after the transmitted power of described subscriber equipment, and to described base station transmitted signal, described signal carries the sign of described subscriber equipment;

Described switch unit, for switching described the second subscriber equipment.

In the possible implementation of the first, in conjunction with fourth aspect, described switch unit specifically for:

Receive the handover measurement message that described base station sends, according to described handover measurement message arrangement and neighbor cell is measured;

To described base station, send the measurement report that described neighbor cell is measured, so that the Target cell of switching is determined in described base station according to described measurement report;

Receive the switching command that described base station sends;

According to described switching command, set up and being connected of described Target cell.

In the possible implementation of the second, in conjunction with the possible implementation of fourth aspect the first, described switch unit specifically for:

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

Carrier wave is measured, and sent to described base station the feedback message that the carrier wave of described base station is measured, so that the target carrier that described the second subscriber equipment switches is determined according to described feedback message in described base station;

Receive the carrier wave switching message that described base station sends, described carrier wave switches message and carries target carrier information;

According to described carrier wave, switch message and be switched to described target carrier.

The 5th aspect, the embodiment of the present invention provides a kind of switched system, and this system comprises: the base station described in the third aspect and the subscriber equipment described in fourth aspect.

Embodiments of the invention provide a kind of changing method, base station, subscriber equipment and switched system of subscriber equipment, the method comprises when base station is known after the situation that has adjacent frequency interference, subscriber equipment in described base station range sends the first downstream message, and the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power.The described signal sending according to the described subscriber equipment not receiving, upward signal power limited users equipment in described base station range is determined in described base station.Then described base station sends the second downstream message to described the second subscriber equipment, and described the second downstream message is used to indicate described the second subscriber equipment and increases transmitted power, for described the second subscriber equipment is switched.The mode of described like this base station based on reducing the transmitted power of described subscriber equipment, determine the upward signal power limited users equipment in described base station range, then upward signal power limited users equipment is switched in time, thereby can guarantee the proper communication of subscriber equipment.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The changing method flow chart of a kind of subscriber equipment that Fig. 1 provides for the embodiment of the present invention;

The changing method flow chart of the another kind of subscriber equipment that Fig. 2 provides for the embodiment of the present invention;

The structural representation of a kind of base station that Fig. 3 provides for the embodiment of the present invention;

The structural representation of a kind of subscriber equipment that Fig. 4 provides for the embodiment of the present invention;

The changing method flow chart of another subscriber equipment that Fig. 5 provides for the embodiment of the present invention;

The changing method flow chart of a kind of subscriber equipment that Fig. 6 also provides for the embodiment of the present invention;

The another kind of architecture of base station schematic diagram that Fig. 7 provides for the embodiment of the present invention;

Another architecture of base station schematic diagram that Fig. 8 provides for the embodiment of the present invention.

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 clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Frequency spectrum use is at present fixed allocation, and TV business is used the following frequency spectrum that hundreds of million propagation characteristics are good, covering advantage is large of 800MHz, but in this section of frequency spectrum, has the frequency range of fully not used in a large number, i.e. white spaces.Existing mobile communication system is utilized cognitive radio technology cognitive radio communication environment, can detect dynamically and effectively access the white spaces of television services.But, according to FCC regulation, if the white spaces of mobile communication system access TV business is primary user's signal, TV signal is when adjacent frequency occurs, for fear of the TV signal to adjacent frequency, cause interference, in base station range, the maximum transmit power of all subscriber equipmenies need to drop to 16dBm from 20dBm.

Embodiment mono-

The embodiment of the present invention provides a kind of changing method of subscriber equipment, the method is applied to the base station of mobile communication system, this mobile communication system can be any cell mobile communication systems, LTE(Long Term Evolution for example, Long Term Evolution), GSM(Global System of Mobile communications, global system for mobile communications), UMTS(Universal Mobile Telecommunications System, universal mobile telecommunications system) etc.As shown in Figure 1, the method comprises:

101, base station knows that after the situation that has adjacent frequency interference, the described subscriber equipment in described base station range sends the first downstream message, and the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power.

Wherein, adjacent frequency is disturbed and is referred to the existence channel adjacent with this cell operation channel in adjacent cell, the situation that the adjacent channel causing while having signal to occur in adjacent channel disturbs.Base station by self perception, measure and know the situation that exists adjacent frequency to disturb, or receive the message that the adjacent frequency of other device-awares, measurement is disturbed, can be also database informing base station before adjacent frequency disturbed condition occurs.

For LTE system, described base station can be specifically eNB, if obtaining, described eNB exists after adjacent frequency disturbed condition, described eNB specifically sends the first downstream message to all subscriber equipmenies in RRC connected state, described the first downstream message carries the value of the RRCIEP-Max of subscriber equipment, as: P-Max=16dBm, the value of described this RRCIEP-Max of user device configuration, according to the transmitted power of the value adjustment of this RRCIEP-Max self.

102, described base station receives first user equipment according to the signal sending after described the first downstream message reduction power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power.

At described subscriber equipment, receive after the first downstream message of described base station transmission, according to described the first downstream message, reduce the transmitted power of self.Subsequently, in the signal that described subscriber equipment sends to base station all with the sign of described subscriber equipment.The sign of described subscriber 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 interconnecting between network (Internet Protocol, IP) etc., at this, do not do concrete restriction.

103, the second subscriber equipment is determined according to described subscriber equipment in its known coverage and described first user equipment in described base station, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station do not receive, i.e. upward signal power limited users equipment in described base station range.

Suppose to have in known its coverage in described base station the described subscriber equipment of M connected state, described base station has received N(N<=M within default a period of time) signal of individual described subscriber equipment, described signal carries the sign of described subscriber equipment, can determine the signal of not receiving that all the other (M-N) individual subscriber equipment sends, all the other (M-N) individual subscriber equipmenies are confirmed as upward signal power limited users equipment so, i.e. described the second subscriber equipment.

104, switch described the second subscriber equipment described base station.

The embodiment of the present invention also provides a kind of changing method of subscriber equipment, and as shown in Figure 2, the method comprises:

201, described subscriber equipment receives the first downstream message that described base station sends, and the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power.

Wherein, adjacent frequency is disturbed and is referred to the existence channel adjacent with this cell operation channel in adjacent cell, the situation that the adjacent channel causing while having signal to occur in adjacent channel disturbs.Base station by self perception, measure and know the situation that exists adjacent frequency to disturb, or receive the message that the adjacent frequency of other device-awares, measurement is disturbed, can be also database informing base station before adjacent frequency disturbed condition occurs.

For LTE system, described base station can be specifically eNB, if obtaining, described eNB exists after adjacent frequency disturbed condition, described eNB specifically sends the first downstream message to all subscriber equipmenies in RRC connected state, described the first downstream message carries the value of the RRC IE P-Max of subscriber equipment, as: P-Max=16dBm.

202, described subscriber equipment is configured according to described the first downstream message, reduces the transmitted power of described subscriber equipment.

Described subscriber equipment receives after described the first downstream message, configures the value of described RRC IE P-Max, according to the value of described RRC IE P-Max, adjusts self transmitted power.

203, described subscriber equipment is to described base station transmitted signal, and described signal carries the sign of described subscriber equipment; So that receiving first user equipment, described base station reduces according to described the first downstream message the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power; And, the second subscriber equipment is determined according to described subscriber equipment in its known coverage and described first user equipment in described base station, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station do not receive, i.e. upward signal power limited users equipment in described base station range.

At described subscriber equipment, receive after the first downstream message of described base station transmission, according to described the first downstream message, reduce the transmitted power of self.Subsequently, in the signal that described subscriber equipment sends to base station all with the sign of described subscriber equipment.The sign of described subscriber 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 interconnecting between network (Internet Protocol, IP) etc., at this, do not do concrete restriction.

Suppose to have in known its coverage in described base station the described subscriber equipment of M connected state, described base station has received N(N<=M within default a period of time) signal of individual described subscriber equipment, described signal carries the sign of described subscriber equipment, can determine the signal of not receiving that all the other (M-N) individual subscriber equipment sends, these all the other (M-N) individual subscriber equipmenies are confirmed as upward signal power limited users equipment so, i.e. described the second subscriber equipment.

204, described the second subscriber equipment switches.

The embodiment of the present invention provides a kind of base station 30, as shown in Figure 3, comprising: transmitting element 31, receiving element 32, the first determining units 33 and switch unit 34.

Described transmitting element 31, if know after the situation that has adjacent frequency interference for described base station, described subscriber equipment in 30 coverages of described base station sends the first downstream message, and the described subscriber equipment that described the first downstream message is used to indicate in 30 coverages of described base station reduces transmitted power.

Wherein, adjacent frequency is disturbed and is referred to the existence channel adjacent with this cell operation channel in adjacent cell, the situation that the adjacent channel causing while having signal to occur in adjacent channel disturbs.Base station 30 by self perception, measure and know the situation that exists adjacent frequency to disturb, or receive the message that the adjacent frequency of other device-awares, measurement is disturbed, can be also database informing base station 30 before adjacent frequency disturbed condition occurs.

For LTE system, described base station 30 can be specifically eNB, if obtaining, described eNB exists after adjacent frequency disturbed condition, described transmitting element 31 sends the first downstream message to all subscriber equipmenies in RRC connected state, described the first downstream message carries the value of the RRC IE P-Max of subscriber equipment, as: P-Max=16dBm, the value of this RRC IE P-Max of described user device configuration, according to the transmitted power of the value adjustment of this RRC IE P-Max self.

Described receiving element 32, for receiving first user equipment, according to described the first downstream message, reduce the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power.

At described subscriber equipment, receive after the first downstream message of described base station 30 transmissions, according to described the first downstream message, reduce the transmitted power of self.Subsequently, in the signal that described subscriber equipment sends to base station 30 all with the sign of described subscriber equipment.The sign of described subscriber 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 interconnecting between network (Internet Protocol, IP) etc., at this, do not do concrete restriction.

Described the first determining unit 33, for determining the second subscriber equipment according to described subscriber equipment in 30 coverages of known base station and described first user equipment, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station 30 do not receive, i.e. upward signal power limited users equipment in described base station range.

Suppose to have in known its coverage in described base station 30 the described subscriber equipment of M connected state, described receiving element 32 has received N(N<=M within default a period of time) signal of individual described subscriber equipment, described signal carries the sign of described subscriber equipment, can determine the signal of not receiving that all the other (M-N) individual subscriber equipment sends, so described the first determining unit 33 determines that all the other (M-N) individual subscriber equipmenies are upward signal power limited users equipment, i.e. described the second subscriber equipment.

Described switch unit 34, switches for described the second subscriber equipment that described the first determining unit 33 is determined.

The embodiment of the present invention also provides a kind of subscriber equipment 40, comprises as shown in Figure 4: receiving element 41, transmitting element 42, power adjustment unit 43 and switch unit 44.

Described receiving element 41, receives the first downstream message that described base station sends, and the described subscriber equipment 40 that described the first downstream message is used to indicate in described base station range reduces transmitted power.

Wherein, adjacent frequency is disturbed and is referred to the existence channel adjacent with this cell operation channel in adjacent cell, the situation that the adjacent channel causing while having signal to occur in adjacent channel disturbs.Base station by self perception, measure and know the situation that exists adjacent frequency to disturb, or receive the message that the adjacent frequency of other device-awares, measurement is disturbed, can be also database informing base station before adjacent frequency disturbed condition occurs.

For LTE system, described base station can be specifically eNB, if obtaining, described eNB exists after adjacent frequency disturbed condition, described eNB specifically sends the first downstream message to all subscriber equipmenies 40 in RRC connected state, described the first downstream message carries the value of the RRC IE P-Max of subscriber equipment 40, as: P-Max=16dBm.

Described power adjustment unit 43, is configured for described the first downstream message receiving according to described receiving element 41, reduces the transmitted power of described subscriber equipment 40.

Described use the second receiving unit 41 receives after described the first downstream message, and the value of the described RRC IE P-Max of described power adjustment unit 43 configuration, adjusts self transmitted power according to the value of described RRC IE P-Max.

Described transmitting element 42, is configured according to described the first downstream message for described power adjustment unit 43, reduces after the transmitted power of described subscriber equipment 40, and to described base station transmitted signal, described signal carries the sign of described subscriber equipment 40; So that receiving first user equipment, described base station reduces according to described the first downstream message the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power; And, the second subscriber equipment is determined according to described subscriber equipment in its known coverage and described first user equipment in described base station, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station do not receive, i.e. upward signal power limited users equipment 40 in described base station range.

At described receiving element 41, receive after the first downstream message of described base station transmission, described power adjustment unit 43 reduces the transmitted power of described subscriber equipment 40 according to described the first downstream message.Subsequently, in the signal that described transmitting element 42 sends to base station all with the sign of described subscriber equipment 40.The sign of described subscriber equipment 40 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 interconnecting between network (Internet Protocol, IP) etc., at this, do not do concrete restriction.

Suppose to have in known its coverage in described base station the described subscriber equipment 40 of M connected state, described base station has received N(N<=M within default a period of time) signal of individual described subscriber equipment 40, described signal carries the sign of described subscriber equipment 40, can determine the signal of not receiving that all the other (M-N) individual subscriber equipment sends, these all the other (M-N) individual subscriber equipmenies are confirmed as upward signal power limited users equipment so, i.e. described the second subscriber equipment.

Described switch unit 44, for switching described the second subscriber equipment.

Embodiments of the invention provide a kind of changing method, base station, subscriber equipment and switched system of subscriber equipment, the method comprises that base station is known and exists after the situation that adjacent frequency disturbs, subscriber equipment in described base station range sends the first downstream message, and the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power.Described base station receives first user equipment and reduces according to described the first downstream message the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power.Described base station is according to upward signal power limited users equipment in the described signal base station range not receiving.Then upward signal power limited users equipment is switched in time, thus the proper communication of assurance subscriber equipment.

Embodiment bis-

As shown in Figure 5, the embodiment of the present invention also provides a kind of changing method of subscriber equipment, and the method comprises:

501, described base station is known after the situation that has adjacent frequency interference, and described base station sends frequency solicitation message to spectrum management entity or database.

Wherein, adjacent frequency is disturbed and is referred to the existence channel adjacent with this cell operation channel in adjacent cell, the situation that the adjacent channel causing while having signal to occur in adjacent channel disturbs.Base station by self perception, measure and know the situation that exists adjacent frequency to disturb, or receive the message that the adjacent frequency of other device-awares, measurement is disturbed, can be also database informing base station before adjacent frequency disturbed condition occurs.

For LTE system, described base station can be specifically eNB, if described eNB base station is known, exists after the situation that adjacent frequency disturbs, and base station is done frequency to spectrum management entity or other frequencies of database application and switched.Spectrum management entity is the device ,You telecom operators management that mechanism that frequency spectrum is managed arranges.Database is to be runed by other special operators.

502, described base station receives the feedback result of described spectrum management entity or database transmission.

Spectrum management entity or database send feedback result to base station, if database, feedback result is the list of a usable spectrum, by base station, judges whether suitable frequency; If spectrum management entity, feedback result is that spectrum management entity is base station selected frequency or there is no suitable frequency.

503, described base station has determined whether available frequency according to described feedback result.

If described base station defines available frequency according to described feedback result, perform step 504; If described base station is determined without available frequency according to described feedback result, is performed step 505.

If 504 described base stations define available frequency according to described feedback result, base station is switched to described arbitrary available frequency, all subscriber equipmenies is switched to identical frequency simultaneously.

If current TV signal is primary user's signal, for fear of the TV signal to adjacent frequency, cause interference, in described base station, during to described spectrum management entity or database application to frequency, can directly all subscriber equipmenies under base station and described base station range be switched to this frequency.

For example, when base station defines available frequency, and definite target frequency that will switch, message send to be switched to subscriber equipment in base station, includes target frequency that described subscriber equipment switches, time that described subscriber equipment switches and other parameter information of switching in described switching message; Then base station and subscriber equipment are switched to this target frequency simultaneously.Wherein, this target frequency can be arbitrary frequency of this available frequency.

If 505 described base stations determine without available frequency according to described feedback result, to the described subscriber equipment in described base station range, send the first downstream message, described the first downstream message is used to indicate described subscriber equipment reduction transmitted power.

In described base station, according to described feedback result, determine there is no suitable frequency, when the subscriber equipment under described like this base station and described base station range cannot switch in the lump, described base station is according to the regulation of FCC, all subscriber equipmenies in RRC connected state under described base station range send the first downstream message, for reducing the transmitted power of subscriber equipment.

For instance, eNB can send the first downstream message to all subscriber equipmenies in RRC connected state, and described the first downstream message carries the value of the RRC IE P-Max of subscriber equipment, as: P-Max=16dBm, indicates described user to reduce transmitted power.

506, described subscriber equipment receives the first downstream message that described base station sends.

507, described subscriber equipment is configured according to described the first downstream message, reduces the transmitted power of described subscriber equipment.

The value of described user device configuration RRC IE P-Max, makes described subscriber equipment according to the value of the RRC IE P-Max of described configuration, adjust the power of self.

508, described subscriber equipment is to described base station transmitted signal, and described signal carries the sign of described subscriber equipment.

The sign of described subscriber 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 interconnecting between network (Internet Protocol, IP) etc., at this, do not do concrete restriction.

509, described base station receives described subscriber equipment according to the signal sending after described the first downstream message reduction power.

At described subscriber equipment, reduce the upward signal power limited of the transmitted power Hou, certain customers equipment of self, this makes base station cannot receive the signal that subscriber equipment sends.Conventionally, subscriber equipment retransmits after this signal preset times to base station in physical layer, while not receiving the response message of base station transmission, also can retransmit again preset times at wireless chain control layer, if still do not receive the response message of base station, this subscriber equipment can enter Radio Link Failure state.Described Radio Link Failure state refers to the state of described subscriber equipment and described base station communication failure

510, the second subscriber equipment is determined according to described subscriber equipment in its known coverage and described first user equipment in described base station, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station do not receive, i.e. upward signal power limited users equipment in described base station range.

Suppose to have in known its coverage in described base station the described subscriber equipment of M connected state, described base station has received N(N<=M within default a period of time) signal of individual described subscriber equipment, described signal carries the sign of described subscriber equipment, can determine the signal of not receiving that all the other (M-N) individual subscriber equipment sends, all the other (M-N) individual subscriber equipmenies are confirmed as upward signal power limited users equipment so, i.e. described the second subscriber equipment.

511, switch described the second subscriber equipment described base station.

Described base station can be switched to other community by described the second subscriber equipment according to actual conditions, also can described the second subscriber equipment be switched to according to actual conditions to other carrier wave of coverage.

512, described the second subscriber equipment switches.

Embodiments of the invention provide a kind of method for user device switching, the method comprises that base station is known and exists after the situation that adjacent frequency disturbs, to subscriber equipment, send the first downstream message, the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power.The described signal sending according to the described subscriber equipment receiving, upward signal power limited users equipment in its coverage is determined in described base station, described signal carries the mark of subscriber equipment.The mode of described like this base station based on reducing the transmitted power of described subscriber equipment, determine the upward signal power limited users equipment in described base station range, then upward signal power limited users equipment is switched in time, thereby can guarantee the proper communication of subscriber equipment.

As shown in Figure 6, a kind of method that the embodiment of the present invention also provides subscriber equipment to switch, the method comprises:

601, described base station knows that after the situation that has adjacent frequency interference, described base station determines whether that available carrier wave switches.

Wherein, adjacent frequency is disturbed and is referred to the existence channel adjacent with this cell operation channel in adjacent cell, the situation that the adjacent channel causing while having signal to occur in adjacent channel disturbs.Base station by self perception, measure and know the situation that exists adjacent frequency to disturb, or receive the message that the adjacent frequency of other device-awares, measurement is disturbed, can be also database informing base station before adjacent frequency disturbed condition occurs.

If described base station defines available carrier wave, switch, perform step 602; If described base station is determined, without available carrier wave, switch, perform step 603.

Described base station is according to the loading condition of carrier wave, determine whether that carrier wave can carry all subscriber equipmenies in RRC connected state under described base station and described base station range, if described base station defines carrier wave, can carry all subscriber equipmenies in RRC connected state under described base station and described base station range, described base station defines available carrier wave and switches.

If 602 described base stations define available carrier wave, switch, base station is switched to described arbitrary available carrier wave, and all subscriber equipmenies is switched to identical carrier wave simultaneously.

If 603 described base stations determine not have available carrier wave to switch, to the described subscriber equipment in described base station range, send the first downstream message, described the first downstream message is used to indicate described described subscriber equipment and reduces transmitted power.

If described base station determines not have available carrier wave to switch, base station only need to be determined upward signal power limited users equipment is switched.Base station sends the first downstream message by the subscriber equipment in RRC connected state under base station range like this, indicates described subscriber equipment to reduce transmitted power.

For instance, eNB can send the first downstream message to all subscriber equipmenies in RRC connected state, and described the first downstream message carries the value of the RRCIEP-Max of subscriber equipment, as: P-Max=16dBm, indicates described user to reduce transmitted power.

604, described subscriber equipment receives the first downstream message that described base station sends.

605, described subscriber equipment is configured according to described the first downstream message, reduces the transmitted power of described subscriber equipment.

The value of described user device configuration RRCIEP-Max, makes described subscriber equipment according to the value of the RRCIEP-Max of described configuration, adjust the power of self.

606, described subscriber equipment is to described base station transmitted signal, and described signal carries the sign of described subscriber equipment.

The sign of described subscriber 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 interconnecting between network (Internet Protocol, IP) etc., at this, do not do concrete restriction.

607, described base station receives described subscriber equipment according to the signal sending after described the first downstream message reduction power.

At described subscriber equipment, reduce the upward signal power limited of the transmitted power Hou, certain customers equipment of self, this makes base station cannot receive the signal that subscriber equipment sends.Conventionally, subscriber equipment retransmits after this signal preset times to base station in physical layer, while not receiving the response message of base station transmission, also can retransmit again preset times at wireless chain control layer, if still do not receive the response message of base station, this subscriber equipment can enter the state that Radio Link Failure state described in Radio Link Failure state refers to described subscriber equipment and described base station communication failure.

608, the second subscriber equipment is determined according to described subscriber equipment in its known coverage and described first user equipment in described base station, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station do not receive, i.e. upward signal power limited users equipment in described base station range.

Suppose to have in known its coverage in described base station the described subscriber equipment of M connected state, described base station has received N(N<=M within default a period of time) signal of individual described subscriber equipment, described signal carries the sign of described subscriber equipment, can determine and not receive that all the other (M-N) individual subscriber equipmenies do not have the signal sending, these all the other (M-N) individual subscriber equipmenies are confirmed as upward signal power limited users equipment so, i.e. described the second subscriber equipment.

609, switch described the second subscriber equipment described base station.

610, described the second subscriber equipment switches.

Described base station can be switched to other community by described the second subscriber equipment according to actual conditions, also can described the second subscriber equipment be switched to according to actual conditions to other carrier wave of coverage.

Embodiments of the invention provide a kind of method for user device switching, the method comprises when base station is known after the situation that has adjacent frequency interference, to subscriber equipment, send the first downstream message, the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power.The described signal sending according to the described subscriber equipment receiving, upward signal power limited users equipment in described base station range is determined in described base station, described signal carries customer equipment identification.The mode of described like this base station based on reducing the transmitted power of described subscriber equipment, determine the upward signal power limited users equipment in described base station range, then upward signal power limited users equipment is switched in time, thereby can guarantee the proper communication of subscriber equipment.

Wherein, in above-described embodiment, switch described the second subscriber equipment described base station, the detailed process that described subscriber equipment switches according to the configuration of described base station can comprise: described the second subscriber equipment enters into before Radio Link Failure state, described base station sends the second downstream message to described the second subscriber equipment, described Radio Link Failure state refers to the state of described subscriber equipment and described base station communication failure, and described the second downstream message is used to indicate described the second subscriber equipment and increases transmitted power.Then described base station sends handover measurement message to described the second subscriber equipment, so that described the second subscriber equipment is measured neighbor cell, described the second subscriber equipment receives the handover measurement message that described base station sends, and according to the second subscriber equipment described in described handover measurement message arrangement, neighbor cell is measured.Described the second subscriber equipment is measured described neighbor cell, and sends to described base station the measurement report that described neighbor cell is measured, so that the Target cell that described the second subscriber equipment switches is determined according to described measurement report in described base station.The measurement report that neighbor cell is measured that described base station sends according to described the second subscriber equipment, determines the Target cell that described the second subscriber equipment switches.Then described base station sends handover request message to described Target cell, asks described the second subscriber equipment to be switched to described Target cell.Described base station receives after the handover request feedback message of described Target cell, described base station sends switching command to described the second subscriber equipment, in LTE system, be specially RRC connection message, described the second subscriber equipment receives the RRC connection message that described base station sends, according to described switching command, described the second subscriber equipment connects according to described Target cell.

Switch described the second subscriber equipment described base station, the detailed process that described the second subscriber equipment switches according to the configuration of described base station can also comprise: described the second subscriber equipment enters into before Radio Link Failure state, described base station sends the second downstream message to described the second subscriber equipment, described Radio Link Failure state refers to the state of described subscriber equipment and described base station communication failure, and described the second downstream message is used to indicate described the second subscriber equipment and increases transmitted power.Described base station sends handover measurement message to described the second subscriber equipment, so that described the second subscriber equipment is measured described carrier wave.Described the second subscriber equipment receives the handover measurement message that described base station sends, and the second subscriber equipment is measured the carrier wave of described base station described in described handover measurement message arrangement.Described the second subscriber equipment is measured carrier wave, and sends to described base station the feedback message that the carrier wave of described base station is measured, so that the target carrier that described the second subscriber equipment switches is determined according to described feedback message in described base station.Described base station receives described the second subscriber equipment and described carrier wave is measured to the feedback message of rear transmission.The feedback message of rear transmission is measured according to described the second subscriber equipment in described base station to described carrier wave, determine the target carrier that described the second subscriber equipment switches.Described base station sends carrier wave to described the second subscriber equipment and switches message, and described carrier wave switches message and carries target carrier information, so that described the second subscriber equipment is switched to described target carrier.Described the second subscriber equipment receives the carrier wave switching message that described base station sends, and described carrier wave switches message and carries target carrier information.Described the second subscriber equipment switches message according to described carrier wave and is switched to described target carrier.

Embodiment tri-

As shown in Figure 7, the embodiment of the present invention also provides 70,Gai base station, a kind of base station 70 to be applied to mobile communication system, this mobile communication system can be LTE, and this base station 70 comprises: transmitting element 71, receiving element 72, the first determining unit 73, and switch unit 74 and judging unit 75.

Described transmitting element 71, knows for described base station 70 after the situation that has adjacent frequency interference, to spectrum management entity or database, sends frequency solicitation message.

Wherein, adjacent frequency is disturbed and is referred to the existence channel adjacent with this cell operation channel in adjacent cell, the situation that the adjacent channel causing while having signal to occur in adjacent channel disturbs.Base station 70 by self perception, measure and know the situation that exists adjacent frequency to disturb, or receive the message that the adjacent frequency of other device-awares, measurement is disturbed, can be also database informing base station 70 before adjacent frequency disturbed condition occurs.

For LTE system, described base station 70 can be specifically eNB, if described eNB is known, exists after the situation that adjacent frequency disturbs, and described transmitting element 71 is done frequency to spectrum management entity or other frequencies of database application and switched.

Spectrum management entity is the device ,You telecom operators management that mechanism that frequency spectrum is managed arranges.Database is to be runed by other special operators.

Described receiving element 72, the feedback result sending for receiving described spectrum management entity or database.

Spectrum management entity or database be 70 transmission feedback result to base station, if database, feedback result is the list of a usable spectrum, by base station 70, judges whether suitable frequency; If spectrum management entity, feedback result is that spectrum management entity is the frequency of base station 70 selections or there is no suitable frequency.

Described judging unit 75, for having determined whether available frequency according to described feedback result.

Described switch unit 74, if define available frequency for described judging unit according to described feedback result, is switched to described arbitrary available frequency by described base station 70, described subscriber equipment is switched to identical frequency simultaneously.

Described transmitting element 71, if also determine without available frequency according to described feedback result for described judging unit 75, to described subscriber equipment, send the first downstream message, the described subscriber equipment that described the first downstream message is used to indicate in 70 coverages of described base station reduces transmitted power.

At described judging unit 75, according to described feedback result, determine there is no suitable frequency, when the subscriber equipment under described like this base station 70 and described base station 70 coverages cannot switch in the lump, described transmitting element 71 is according to the regulation of FCC, all subscriber equipmenies in RRC connected state under 70 coverages of described base station send the first downstream message, for reducing the transmitted power of subscriber equipment.

For instance, described transmitting element 71 can send the first downstream message to all subscriber equipmenies in RRC connected state, described the first downstream message carries the value of the RRC IE P-Max of subscriber equipment, as: P-Max=16dBm, indicates described user to reduce transmitted power.

Described receiving element 72, for receiving first user equipment, according to described the first downstream message, reduce the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power.

At described subscriber equipment, reduce the upward signal power limited of the transmitted power Hou, certain customers equipment of self, this makes receiving element 72 cannot receive the signal that upward signal power limited users equipment sends.Conventionally, subscriber equipment retransmits after these signal preset times to base station 70 in physical layer, while not receiving the response message of base station 70 transmissions, also can retransmit again preset times at wireless chain control layer, if still do not receive the response message of base station 70, this subscriber equipment can enter Radio Link Failure state.

Described the first determining unit 73, for determining the second subscriber equipment according to described subscriber equipment in 70 coverages of known base station and described first user equipment, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station 70 do not receive, i.e. upward signal power limited users equipment in 70 coverages of described base station.

Described switch unit 74, switches for described the second subscriber equipment that described the first determining unit is determined.

Current TV signal is primary user's signal, for fear of the TV signal to adjacent frequency, cause interference, at transmitting element 71, during to described spectrum management entity or database application to frequency, can directly all subscriber equipmenies under base station 70 and described base station 70 coverages be switched to this frequency.

For example, when described judging unit 75 defines available frequency, and definite target frequency that will switch, switch unit 74 send to switch message to subscriber equipment, includes target frequency that described subscriber equipment switches, time that described subscriber equipment switches and other parameter information of switching in described switching message; Then base station 70 and subscriber equipment are switched to this target frequency simultaneously.

Wherein, this target frequency can be arbitrary frequency of this available frequency.

Embodiments of the invention provide ,Gai base station, a kind of base station to comprise transmitting element, receiving element, the first determining unit, switch unit and judging unit.This base station is known after the situation that has adjacent frequency interference, first by transmitting element to spectrum management entity or database application frequency, then judging unit judges whether that according to the feedback result of spectrum management entity or database feedback available frequency switches, if judging unit defines available frequency, switch unit is switched to target frequency by the subscriber equipment under the coverage of described base station and described base station, if judging unit is determined without available frequency, transmitting element sends the first downstream message to subscriber equipment, the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power.Then the described signal that the described subscriber equipment receiving according to receiving element sends, the first determining unit of described base station is determined the second subscriber equipment, described signal carries the sign of subscriber equipment, and described the second subscriber equipment is upward signal power limited users equipment in described base station range.Then switch unit switches described the second subscriber equipment.The mode of described like this base station based on reducing the transmitted power of described subscriber equipment, determine the upward signal power limited users equipment in described base station range, then upward signal power limited users equipment is switched in time, thereby can guarantee the proper communication of subscriber equipment.

Embodiment tetra-

As shown in Figure 8, the embodiment of the present invention also provides 80,Gai base station, a kind of base station 80 to be applied to mobile communication system, and this mobile communication system can be LTE, this base station 80 comprises: the second determining unit 81, transmitting element 82, receiving element 83, the first determining units 84 and switch unit 85.

Described the second determining unit 81, for knowing in described base station 80 after the situation that has adjacent frequency interference, determines whether described subscriber equipment has available carrier wave to switch.

Described the second determining unit 81 is according to the loading condition of carrier wave, whether other carrier wave of determining service area can carry all subscriber equipmenies in RRC connected state under described base station 80 and described base station 80 coverages, if described the second determining unit 81 is determined in the coverage of described base stations 80, have carrier wave can carry all subscriber equipmenies in RRC connected state under described base station 80 and described base station 80 coverages, described the second determining unit 81 defines available carrier wave and switches.

Described transmitting element 82, if determine do not have available carrier wave to switch for described the second determining unit 81, to described subscriber equipment, send the first downstream message, the described subscriber equipment that described the first downstream message is used to indicate in 80 coverages of described base station reduces transmitted power.

If described the second determining unit 81 determines do not have available carrier wave to switch, base station 80 needs definite upward signal power limited users equipment is switched.Described like this transmitting element 82 sends the first downstream message by the subscriber equipment in RRC connected state under 80 coverages of base station, indicates described subscriber equipment to reduce transmitted power.

For instance, described transmitting element 82 can send the first downstream message to all subscriber equipmenies in RRC connected state, described the first downstream message carries the value of the RRC IE P-Max of subscriber equipment, as: P-Max=16dBm, indicates described user to reduce transmitted power.

Described receiving element 83, for receiving first user equipment, according to described the first downstream message, reduce the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power.

At described subscriber equipment, reduce the upward signal power limited of the transmitted power Hou, certain customers equipment of self, this makes receiving element 83 cannot receive the signal that upward signal power limited users equipment sends.Conventionally, subscriber equipment retransmits after these signal preset times to base station 80 in physical layer, while not receiving the response message of base station 80 transmissions, also can retransmit again preset times at wireless chain control layer, if still do not receive the response message of base station 80, this subscriber equipment can enter Radio Link Failure state.

Described the first determining unit 84, for determining the second subscriber equipment according to described subscriber equipment in 80 coverages of known base station and described first user equipment, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station 80 do not receive, i.e. upward signal power limited users equipment in 80 coverages of described base station.

Described switch unit 85, for switching described the second subscriber equipment.

If described the second determining unit 84 defines available carrier wave, switch, switch unit 85 also for, described base station 80 is switched to described arbitrary available carrier wave, simultaneously described subscriber equipment is switched to identical carrier wave.

Described the second determining unit 84 is according to the loading condition of carrier wave, whether other carrier wave of determining service area can carry all subscriber equipmenies in RRC connected state under described base station 80 and described base station 80 coverages, if described base station 80 determines that coverage has carrier wave can carry all subscriber equipmenies in RRC connected state under described base station 80 and described base station 80 coverages, described base station 80 defines available carrier wave and switches.

Embodiments of the invention provide ,Gai base station, a kind of base station to comprise the second determining unit, transmitting element, receiving element, the first determining unit and switch unit.This base station changes or is about to and change adjacent frequency signal being detected, first by the second determining unit, determine whether coverage has other available carrier wave, if having other available carrier wave switch unit directly the subscriber equipment under described base station and described base station range is switched in this available target carrier.If without other available carrier wave, transmitting element sends the first downstream message to subscriber equipment, the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power.Then the described signal that the described subscriber equipment receiving according to receiving element sends, described signal carries described customer equipment identification, the first determining unit of described base station is determined the second subscriber equipment, and described the second subscriber equipment is upward signal power limited users equipment in described base station range.The mode of described like this base station based on reducing the transmitted power of described subscriber equipment, determine the upward signal power limited users equipment in described base station range, then upward signal power limited users equipment is switched in time, thereby can guarantee the proper communication of subscriber equipment.

85 pairs of described the second subscriber equipmenies of switch unit 74 in above-described embodiment three and four or switch unit switch specifically and comprise:

Described the second subscriber equipment enters into before Radio Link Failure state, to described the second subscriber equipment, sends the second downstream message, and described the second downstream message is used to indicate described the second subscriber equipment and increases transmitted power; To described the second subscriber equipment, send handover measurement message, so that described the second subscriber equipment is measured neighbor cell; Then the measurement report that neighbor cell is measured sending according to described the second subscriber equipment, determines the Target cell that described the second subscriber equipment switches; To described Target cell, send handover request message, ask described the second subscriber equipment to be switched to described Target cell; The handover request feedback message that receives described Target cell sends switching command to described the second subscriber equipment, is specially RRC connection message, so that described the second subscriber equipment and described Target cell connect in LTE system.

85 pairs of described the second subscriber equipmenies of switch unit 74 in above-described embodiment or switch unit switch and can also specifically comprise:

Described the second subscriber equipment enters into before Radio Link Failure state, to described the second subscriber equipment, sends the second downstream message, and described the second downstream message is used to indicate described the second subscriber equipment and increases transmitted power; To described the second subscriber equipment, send handover measurement message, so that described subscriber equipment is measured described carrier wave.Receive described the second subscriber equipment and described carrier wave is measured to the feedback message of rear transmission.According to described the second subscriber equipment, described carrier wave is measured to the feedback message of rear transmission, determined the target carrier that described the second subscriber equipment switches.To described the second subscriber equipment, send carrier wave and switch message, described carrier wave switches message and carries target carrier information, so that described the second subscriber equipment is switched to described target carrier.

Embodiment five,

As shown in Figure 4, the embodiment of the present invention also provides a kind of subscriber equipment 40, comprising: receiving element 41, transmitting element 42, power adjustment unit 43 and switch unit 44.

Wherein, described receiving element 41, the first downstream message sending for receiving described base station, the described subscriber equipment 40 that described the first downstream message is used to indicate in described base station range reduces transmitted power.

Described power adjustment unit 43, is configured for described the first downstream message receiving according to described receiving element, reduces the transmitted power of described subscriber equipment 40.

Described transmitting element 42, is configured according to described the first downstream message for described power adjustment unit 43, reduces after the transmitted power of described subscriber equipment 40, and to described base station transmitted signal, described signal carries the sign of described subscriber equipment 40; So that receiving first user equipment, described base station reduces according to described the first downstream message the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power; And, the second subscriber equipment is determined according to described subscriber equipment in its known coverage and described first user equipment in described base station, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station do not receive, i.e. upward signal power limited users equipment 40 in described base station range.

Described switch unit 44, for switching described the second subscriber equipment.

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

To described base station, send the measurement report that described neighbor cell is measured, so that the Target cell of switching is determined in described base station according to described measurement report.

Receive the switching command that described base station sends.

According to described switching command, set up and being connected of described Target cell.

Wherein, described switching command can be specifically RRC connection message.

Optionally, described switch unit 44 also specifically for: receive the handover measurement message that described base station sends, the second subscriber equipment is measured the carrier wave of described base station described in described handover measurement message arrangement.Carrier wave is measured, and sent to described base station the feedback message that the carrier wave of described base station is measured, so that the target carrier that described the second subscriber equipment switches is determined according to described feedback message in described base station.Receive the carrier wave switching message that described base station sends, described carrier wave switches message and carries target carrier information.

According to described carrier wave, switch message and be switched to described target carrier.

The embodiment of the present invention provides a kind of subscriber equipment, and this subscriber equipment comprises receiving element, transmitting element, power adjustment unit and switch unit.First this subscriber equipment knows that in base station after the situation that has adjacent frequency interference, receiving element receives the first downstream message that described base station sends, and the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power.Then described the first downstream message that described power adjustment unit receives according to described receiving element is configured, and reduces the transmitted power of described subscriber equipment.Described transmitting element is to described base station transmitted signal, and described signal carries the sign of described subscriber equipment; So that receiving first user equipment, described base station reduces according to described the first downstream message the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power; And, the second subscriber equipment is determined according to described subscriber equipment in its known coverage and described first user equipment in described base station, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station do not receive, i.e. upward signal power limited users equipment in described base station range.Described like this switch unit switches described the second subscriber equipment, thereby guarantees the proper communication of subscriber equipment.

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.

Claims (16)

1. a changing method for subscriber equipment, is characterized in that, comprising:
Base station knows that after the situation that has adjacent frequency interference, the subscriber equipment in described base station range sends the first downstream message, and the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power;
Described base station receives first user equipment and reduces according to described the first downstream message the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power;
The second subscriber equipment is determined according to described subscriber equipment in its known coverage and described first user equipment in described base station, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station do not receive, i.e. upward signal power limited users equipment in described base station range;
Switch described the second subscriber equipment described base station.
2. method according to claim 1, is characterized in that, base station is known after the situation that has adjacent frequency interference, also comprised:
Described base station sends frequency solicitation message to spectrum management entity or database;
Described base station receives the feedback result of described spectrum management entity or database transmission;
Described base station has determined whether available frequency according to described feedback result;
If described base station defines available frequency according to described feedback result, described base station is switched to described arbitrary available frequency, all subscriber equipmenies is switched to identical frequency simultaneously;
If described base station determines without available frequency according to described feedback result, to the described subscriber equipment in described base station range, send the first downstream message, described the first downstream message is used to indicate described subscriber equipment reduction transmitted power.
3. method according to claim 1, is characterized in that, base station is known after the situation that has adjacent frequency interference, also comprised:
Described base station determines whether that available carrier wave switches;
If described base station defines available carrier wave, switch, base station is switched to described arbitrary available carrier wave, and all subscriber equipmenies is switched to identical carrier wave simultaneously;
If described base station determines not have available carrier wave to switch, to the subscriber equipment in described base station range, send the first downstream message, the described subscriber equipment that described the first downstream message is used to indicate reduces transmitted power.
4. method according to claim 1, is characterized in that, described base station is switched specifically and comprised described the second subscriber equipment:
Described the second subscriber equipment enters into before Radio Link Failure state, described base station sends the second downstream message to described the second subscriber equipment, described Radio Link Failure state refers to the state of described subscriber equipment and described base station communication failure, and described the second downstream message is used to indicate described the second subscriber equipment and increases transmitted power;
Described base station sends handover measurement message to described the second subscriber equipment, so that described the second subscriber equipment is measured neighbor cell;
Described base station receives the measurement report that neighbor cell is measured of described the second subscriber equipment transmission and determines according to described measurement report the Target cell that described the second subscriber equipment switches;
Described base station sends handover request message to described Target cell, asks described the second subscriber equipment to be switched to described Target cell;
Described base station receives the handover request feedback message of described Target cell;
Described base station sends switching command to described the second subscriber equipment, so that described the second subscriber equipment and described Target cell connect.
5. method according to claim 1, is characterized in that, described base station is switched specifically and comprised described the second subscriber equipment:
Described the second subscriber equipment enters into before described Radio Link Failure state, and described base station sends the second downstream message to described the second subscriber equipment, and described the second downstream message is used to indicate described the second subscriber equipment and increases transmitted power;
Described base station sends handover measurement message to described the second subscriber equipment, so that described the second subscriber equipment is measured carrier wave;
Described base station receives described the second subscriber equipment and described carrier wave is measured to the feedback message of rear transmission;
The feedback message of rear transmission is measured according to described the second subscriber equipment in described base station to described carrier wave, determine the target carrier that described the second subscriber equipment switches;
Described base station sends carrier wave to described the second subscriber equipment and switches message, and described carrier wave switches message and carries target carrier information, so that described the second subscriber equipment is switched to described target carrier.
6. a changing method for subscriber equipment, is characterized in that, the method comprises:
Described subscriber equipment receives the first downstream message that described base station sends, and the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power;
Described subscriber equipment is configured according to described the first downstream message, reduces the transmitted power of described subscriber equipment;
Described subscriber equipment is to described base station transmitted signal, and described signal carries the sign of described subscriber equipment; So that receiving first user equipment, described base station reduces according to described the first downstream message the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power; And, the second subscriber equipment is determined according to described subscriber equipment in its known coverage and described first user equipment in described base station, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station do not receive, i.e. upward signal power limited users equipment in described base station range;
Described the second subscriber equipment switches.
7. method according to claim 6, is characterized in that, described the second subscriber equipment switches specifically and comprises:
Described the second subscriber equipment receives the handover measurement message that described base station sends, and described handover measurement message is used for making described the second subscriber equipment to measure neighbor cell;
Described the second subscriber equipment is measured described neighbor cell;
Described the second subscriber equipment sends the measurement report that described neighbor cell is measured to described base station, so that the Target cell that described the second subscriber equipment switches is determined according to described measurement report in described base station;
Described the second subscriber equipment receives the switching command that described base station sends;
According to described switching command, described the second subscriber equipment and described Target cell connect.
8. method according to claim 6, is characterized in that, described the second subscriber equipment switches specifically and comprises:
Described the second subscriber equipment receives the handover measurement message that described base station sends, and the second subscriber equipment is measured the carrier wave of described base station described in described handover measurement message arrangement;
Described the second subscriber equipment is measured carrier wave, and sends to described base station the feedback message that the carrier wave of described base station is measured, so that the target carrier that described the second subscriber equipment switches is determined according to described feedback message in described base station;
Described the second subscriber equipment receives the carrier wave switching message that described base station sends, and described carrier wave switches message and carries target carrier information;
Described the second subscriber equipment switches message according to described carrier wave and is switched to described target carrier.
9. method according to claim 6, is characterized in that, comprising:
If described subscriber equipment is defined as the second subscriber equipment by described base station, at described the second subscriber equipment, enter before Radio Link Failure state, described the second subscriber equipment switches, and described Radio Link Failure state refers to the state of described subscriber equipment and described base station communication failure.
10. a base station, is characterized in that, comprising: transmitting element, receiving element, the first determining unit and switch unit;
Described transmitting element, knows that for described base station after the situation that has adjacent frequency interference, the described subscriber equipment in described base station range sends the first downstream message, and described the first downstream message is used to indicate described subscriber equipment and reduces transmitted power;
Described receiving element, for receiving first user equipment, according to described the first downstream message, reduce the signal sending after power, described signal carries the sign of described first user equipment, and described first user equipment is according to the normal subscriber equipment of communicating by letter after described the first downstream message reduction power;
Described the first determining unit, for determining the second subscriber equipment according to described subscriber equipment in known base station range and described first user equipment, described the second subscriber equipment refers to send the subscriber equipment of the described signal that described base station do not receive, i.e. upward signal power limited users equipment in described base station range;
Described switch unit, switches for described the second subscriber equipment that described the first determining unit is determined.
11. base stations according to claim 10, is characterized in that,
Described transmitting element, also, for knowing in described base station after the situation that has adjacent frequency interference, sends frequency solicitation message to spectrum management entity or database;
Described receiving element, the feedback result also sending for receiving described spectrum management entity or database;
Described base station also comprises judging unit, for having determined whether available frequency according to described feedback result;
Described transmitting element, if determine without available frequency according to described feedback result for described judging unit, to described subscriber equipment, send the first downstream message, the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power;
Described switch unit, if define available frequency for described judging unit according to described feedback result, is switched to described arbitrary available frequency by described base station, described subscriber equipment is switched to identical frequency simultaneously.
12. base stations according to claim 10, is characterized in that, described base station also comprises: the second determining unit, for knowing in described base station after the situation that has adjacent frequency interference, determines whether that available carrier wave switches;
If described the second determining unit defines available carrier wave, switch, switch unit is switched to described arbitrary available carrier wave by described base station, and described subscriber equipment is switched to identical carrier wave simultaneously;
Described transmitting element specifically for:
If described the second determining unit is determined, do not have available carrier wave to switch, to described subscriber equipment, send the first downstream message, the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power.
13. 1 kinds of subscriber equipmenies, is characterized in that comprising: receiving element, transmitting element, power adjustment unit and switch unit;
Described receiving element, the first downstream message sending for receiving described base station, the described subscriber equipment that described the first downstream message is used to indicate in described base station range reduces transmitted power;
Described power adjustment unit, is configured for described the first downstream message receiving according to described receiving element, reduces the transmitted power of described subscriber equipment;
Described transmitting element, is configured according to described the first downstream message for described power adjustment unit, reduces after the transmitted power of described subscriber equipment, and to described base station transmitted signal, described signal carries the sign of described subscriber equipment;
Described switch unit, for switching described the second subscriber equipment.
14. subscriber equipmenies according to claim 13, is characterized in that, described switch unit specifically for:
Receive the handover measurement message that described base station sends, according to described handover measurement message arrangement and neighbor cell is measured;
To described base station, send the measurement report that described neighbor cell is measured, so that the Target cell of switching is determined in described base station according to described measurement report;
Receive the switching command that described base station sends;
According to described switching command, set up and being connected of described Target cell.
15. subscriber equipmenies according to claim 13, is characterized in that, described switch unit also specifically for:
Receive the handover measurement message that described base station sends, the second subscriber equipment is measured the carrier wave of described base station described in described handover measurement message arrangement;
Carrier wave is measured, and sent to described base station the feedback message that the carrier wave of described base station is measured, so that the target carrier that described the second subscriber equipment switches is determined according to described feedback message in described base station;
Receive the carrier wave switching message that described base station sends, described carrier wave switches message and carries target carrier information;
According to described carrier wave, switch message and be switched to described target carrier.
16. 1 kinds of switched systems, is characterized in that, this system comprises: the subscriber equipment described in the base station described in claim 10-12 any one and claim 13-15 any one.
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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