CN103634087A - Delete method and device of component carrier wave - Google Patents

Delete method and device of component carrier wave Download PDF

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Publication number
CN103634087A
CN103634087A CN201210312223.2A CN201210312223A CN103634087A CN 103634087 A CN103634087 A CN 103634087A CN 201210312223 A CN201210312223 A CN 201210312223A CN 103634087 A CN103634087 A CN 103634087A
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CN
China
Prior art keywords
component carrier
deleted
base station
carrier wave
auxiliary
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201210312223.2A
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Chinese (zh)
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CN103634087B (en
Inventor
王斌
苗婷
刘星
姜静
张力
李岩
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ZTE Corp
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ZTE Corp
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Priority to CN201210312223.2A priority Critical patent/CN103634087B/en
Priority to PCT/CN2013/082581 priority patent/WO2014032604A1/en
Publication of CN103634087A publication Critical patent/CN103634087A/en
Application granted granted Critical
Publication of CN103634087B publication Critical patent/CN103634087B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands

Abstract

The invention discloses a delete method and device of component carrier wave, wherein the method comprises the following steps: a base station deletes the component carrier wave; when the base station receives the measuring report sent by user equipment (UE) and obtained by aiming and measuring the deleted component carrier wave, the base station can send MAC (media access control) unit (MAC CE) control information to the UE through preset component carrier wave so as to inform the UE to carry out deactivation operation to the deleted component carrier wave, or stops the UE from carrying out data scheduling on the deleted component carrier wave so as to enable a terminal to actively carry out deactivation operation to the deleted component carrier wave after a preset time interval. Through employing the method and device, repeat monitoring, measuring and reporting operations of the UE after the base station deletes the component carrier wave can be prevented.

Description

The delet method of component carrier and device
Technical field
The present invention relates to the communications field, in particular to a kind of delet method and device of component carrier.
Background technology
Senior Long Term Evolution (Long Term Evolution-Advanced, referred to as LTE-A) system peak rate under Hypomobility reaches 1Gbit/s, and under high mobility, peak rate reaches 100Mbit/s.In order to support such peak rate, we need larger bandwidth so, and the frequency spectrum of so large bandwidth is difficult to find.Therefore, LTE-A system needs extending user equipment (User Equipment, referred to as UE) operable bandwidth, introduced thus carrier aggregation (Carrier Aggregation, referred to as CA) technology, be about to a plurality of continuous or discrete carrier aggregation under same base station (enhanced Node Base Station, referred to as eNB) together, simultaneously for UE service, so that required speed to be provided.
In LTE-A system, UE can pass through a plurality of component carriers (Component Carriers after entering connection status simultaneously, referred to as CCs) communicate with base station, comprising a principal component carrier wave (Primary Component Carrier, referred to as PCC), with several auxiliary component carriers (Secondary Component Carrier, referred to as SCC), the Serving cell of their correspondences is called main Serving cell or main plot (Primary Cell, referred to as PCell) and auxiliary serving cell Huo Fu community (Secondary Cell, referred to as SCell).For convenience of description, in the application, will no longer distinguish the difference of PCC and PCell, SCC and SCell, and they are regarded as to same concept.That is to say, what PCC and PCell represented is same concept, i.e. principal component carrier wave, main Serving cell or main plot; What SCC and SCell represented is same concept, i.e. auxiliary component carrier, auxiliary serving cell Huo Fu community; Component carrier or Serving cell are as the general designation of PCC and PCell, SCC and SCell concept.Wherein, main plot provides Non-Access Stratum (NonAccess Stratum, referred to as NAS) information (as cellular global identity (Cell Global Identification), tracking area identification (TrackingArea Identity) etc.).Only when Radio Link Failure (Radio Link Failure, referred to as RLF) occurs PCell, trigger UE and rebuild chain, SCell can not trigger UE and rebuild chain while there is RLF.
Base station can be by sending media access control unit (MediumAccess Control Control Element to UE, referred to as MAC CE) SCell of activation/deactivation UE configuration, UE safeguards Yi Gefu community deexcitation timer (sCell Deactivation Timer) for each SCell in addition, this timer expired, the SCell that UE deexcitation is relevant; The PCell of UE activates all the time.Base station is by sending the SCell of wireless resource control connection reconfiguration message (RRC Connection Reconfiguration message) release/add/modification UE configuration to UE.
At cognitive radio (Cognitive Radio, referred to as CR) in, the mode use authority frequency range that cognitive radio system can " be waited for an opportunity " according to certain, research shows that the utilance of current television spectrum is not high, therefore, cognitive radio system can " wait for an opportunity " to use primary user's (television broadcasting system) there is no the channel using, i.e. TV idle frequency spectrum (Television White Space, referred to as TVWS) at special time and position.The operable TVWS carrier wave of specific location area is constantly to change, for example, due to primary user's arrival (being that primary user resumes TVWS) or other reason, cognitive radio system must exit the TVWS carrier wave using, or reprovision is to other TVWS carrier wave.
TVWS is as frequency domain resource, and the component carrier that can be configured in CA is equally used.Consider in cognitive radio system, TVWS can be subject to the impact of the events such as primary user arrives, load of base station alleviates, and must " abdicate " the TVWS resource of using, for example, because these events (: primary user arrives) are all high priorities; That is to say, TVWS frequency domain resource is used as the component carrier of CA, is (for example: priority arrives lower than primary user) of lower priority, is unsettled; Therefore, base station configuration Liao Yige community (this community use be TVWS frequency domain resource), and the component carrier that this community is configured to UE is used, this use may be potential a kind of risk, that is to say that base station can delete this community at any time, thereby stop this community as the use of component carrier.
In prior art, base station, in deleting component carrier process, is UE not to be carried out (control comprises: notify UE, change the operation behavior of UE etc.) of corresponding control, that is to say, when delete after component carrier base station, angle from UE, UE does not also know that this component carrier deletes, UE still can carry out according to the method for prior art: monitor physical downlink control channel (Physical Downlink Control Channel, referred to as PDCCH) information, measure and reporting channel quality indication (Channel Quality Indicator, referred to as CQI)/pre-coding matrix indication (Precoding Matrix Indicator, referred to as PMI)/order indication (Rank Indication, referred to as RI)/precoding type indication (Precoding Type Indicator, referred to as PTI) information, and these measurements and report always and can carry out, until base station by RRC Connection Reconfiguration message to measuring and reporting object again to configure.Yet, it is evident that, corresponding component carrier has been deleted in base station, and this monitoring of UE PDCCH, to measure, report be a kind of idle exercise, and the such operation of UE only can expend the energy content of battery of self, but there is no actual application value.And prior art does not have, for UE, this insignificant operation provides corresponding solution.
For delete corresponding component carrier in base station in correlation technique in the situation that, the operation that UE still continues to monitor PDCCH, measure, report causes expends the problem of self energy content of battery, not yet proposes at present effective solution.
Summary of the invention
The invention provides a kind of delet method and device of component carrier, at least to address the above problem.
According to an aspect of the present invention, provide a kind of delet method of component carrier, having comprised: component carrier has been deleted in base station; In the situation that receive the measurement report obtaining after the component carrier for having deleted of subscriber equipment (UE) transmission is measured, base station sends media access control unit (MAC CE) control information by intended component carrier wave to UE, with notice UE, the component carrier of having deleted is carried out to deactivating operation, or stops the data dispatch of UE on the component carrier of having deleted so that terminal is initiatively carried out deactivating operation to the component carrier of having deleted after the scheduled duration of interval.
Preferably, intended component carrier wave is for below one of at least: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
Preferably, the operation that UE measures for the component carrier of having deleted comprise following one of at least: the measurement of transmission detection reference signal (SRS) information, channel quality indication (CQI)/pre-coding matrix indication (PMI)/order indication (RI)/precoding type indication (PTI), monitor physical downlink control channel (PDCCH).
The type of the component carrier of preferably, having deleted is auxiliary component carrier.
Preferably, the operation that component carrier is deleted in base station comprise following one of at least: stop the transmitting of radio-frequency head, the transmission of halt system information, the generation that stops pilot tone and transmission, stop all control operations.
Preferably, base station receives measurement report by one of following approach: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
Preferably, after UE carries out deactivating operation to the component carrier of having deleted, also comprise: base station receives the deexcitation confirmation that UE sends, and wherein, deexcitation confirmation is used to indicate UE the deactivating operation of the component carrier of having deleted is completed.
Preferably, base station receives deexcitation confirmation by one of following approach: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
According to a further aspect in the invention, provide a kind of delete device of component carrier, having comprised: removing module, for deleting component carrier; Processing module, be used in the situation that receive the measurement report obtaining after the component carrier for having deleted of subscriber equipment (UE) transmission is measured, by intended component carrier wave, to UE, send media access control unit (MAC CE) control information, with notice UE, the component carrier of having deleted is carried out to deactivating operation, or stop the data dispatch of UE on the component carrier of having deleted so that terminal is initiatively carried out deactivating operation to the component carrier of having deleted after the scheduled duration of interval.
Preferably, intended component carrier wave is for below one of at least: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
The type of the component carrier of preferably, having deleted is auxiliary component carrier.
According to another aspect of the invention, provide a kind of delet method of component carrier, having comprised: component carrier has been deleted in base station; In the situation that receive the measurement report obtaining after the component carrier for having deleted of subscriber equipment (UE) transmission is measured, base station sends Radio Resource by intended component carrier wave to UE and controls (RRC) connection reconfiguration message to notify UE to carry out releasing operation to the component carrier of having deleted.
Preferably, intended component carrier wave is for below one of at least: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
Preferably, the operation that UE measures for the component carrier of having deleted comprise following one of at least: the measurement of transmission detection reference signal SRS information, channel quality indication (CQI)/pre-coding matrix indication (PMI)/order indication (RI)/precoding type indication (PTI), monitor physical downlink control channel (PDCCH).
The type of the component carrier of preferably, having deleted is auxiliary component carrier.
Preferably, the operation that component carrier is deleted in base station comprise following one of at least: stop the transmitting of radio-frequency head, the transmission of halt system information, the generation that stops pilot tone and transmission, stop all control operations.
Preferably, base station receives measurement report by one of following approach: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
Preferably, after UE carries out releasing operation to the component carrier of having deleted, also comprise: base station receives the release that UE sends and completes confirmation, wherein, discharged confirmation and be used to indicate UE the releasing operation of the component carrier of having deleted is completed.
Preferably, base station is received and has been discharged confirmation by one of following approach: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
In accordance with a further aspect of the present invention, provide a kind of delete device of component carrier, having comprised: removing module, for deleting component carrier; Sending module, for in the situation that receive the measurement report obtaining after the component carrier for having deleted that subscriber equipment (UE) sends is measured, by intended component carrier wave, to UE, send Radio Resource and control (RRC) and connect reconfiguration message, with notice UE, the component carrier of having deleted is carried out to releasing operation.
Preferably, intended component carrier wave is for below one of at least: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
The type of the component carrier of preferably, having deleted is auxiliary component carrier.
By the present invention, employing after component carrier is deleted in base station according to the measurement result of user equipment to report, the related news that carry deexcitation indication or discharge indication to UE transmission are so that UE in time the component carrier of having deleted is carried out to deactivating operation or releasing operation (or does not send any information to UE, make UE independently to the component carrier of having deleted, carry out deactivating operation or releasing operation after the scheduled duration of interval) mode, having solved base station has deleted in the situation of corresponding component carrier, UE still continues to monitor PDCCH, measure, the operation reporting causes expends the problem of self energy content of battery, and then reached and avoid UE repeating monitoring after component carrier is deleted in base station, measure and report the effect of operation.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 deletes the schematic diagram of a certain component carrier according to the base station of correlation technique;
Fig. 2 is the delet method flow chart according to the component carrier of the embodiment of the present invention one;
Fig. 3 is the deletion flow chart according to the component carrier of the preferred implementation of the embodiment of the present invention one;
Fig. 4 deletes the schematic diagram of component carrier 3 according to the base station of the preferred embodiment of the present invention one;
Fig. 5 deletes the flow chart of component carrier 3 according to the base station of the preferred embodiment of the present invention one;
Fig. 6 deletes the schematic diagram of component carrier 3 according to the base station of the preferred embodiment of the present invention two;
Fig. 7 deletes the flow chart of component carrier 3 according to the base station of the preferred embodiment of the present invention two;
Fig. 8 is the delet method flow chart according to the component carrier of the embodiment of the present invention two;
Fig. 9 is the deletion flow chart according to the component carrier of the preferred implementation of the embodiment of the present invention two;
Figure 10 deletes the schematic diagram of component carrier 3 according to the base station of the preferred embodiment of the present invention three;
Figure 11 deletes the flow chart of component carrier 3 according to the base station of the preferred embodiment of the present invention three;
Figure 12 is according to the structured flowchart of the delete device of the component carrier of the embodiment of the present invention one; And
Figure 13 is according to the structured flowchart of the delete device of the component carrier of the embodiment of the present invention two.
Embodiment
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
Fig. 2 is the delet method flow chart according to the component carrier of the embodiment of the present invention one, and as shown in Figure 2, the method mainly comprises the following steps (step S202-step S204):
Step S202, component carrier is deleted in base station;
Step S204, in the situation that receive the measurement report obtaining after the component carrier for having deleted of subscriber equipment (UE) transmission is measured, base station sends media access control unit (MAC CE) control information by intended component carrier wave to UE, with notice UE, the component carrier of having deleted is carried out to deactivating operation, or stops the data dispatch of UE on the component carrier of having deleted so that terminal is initiatively carried out deactivating operation to the component carrier of having deleted after the scheduled duration of interval.
In the present embodiment, intended component carrier wave is for below one of at least: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
In the present embodiment, the operation that UE measures for the component carrier of having deleted comprise following one of at least: the measurement of transmission detection reference signal (SRS) information, channel quality indication (CQI)/pre-coding matrix indication (PMI)/order indication (RI)/precoding type indication (PTI), monitor physical downlink control channel (PDCCH).
The type of the component carrier of preferably, having deleted is auxiliary component carrier.
Preferably, the operation that component carrier is deleted in base station comprise following one of at least: stop the transmitting of radio-frequency head, the transmission of halt system information, the generation that stops pilot tone and transmission, stop all control operations.
In the present embodiment, base station receives measurement report by one of following approach: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
In the present embodiment, after UE carries out deactivating operation to the component carrier of having deleted, also comprise: base station receives the deexcitation confirmation that UE sends, and wherein, deexcitation confirmation is used to indicate UE the deactivating operation of the component carrier of having deleted is completed.
Preferably, base station receives deexcitation confirmation by one of following approach: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
Please refer to Fig. 3, Fig. 3 is the deletion flow chart according to the component carrier of the preferred implementation of the embodiment of the present invention one.In actual applications, can adopt the preferred implementation shown in Fig. 3 to implement the delet method of the component carrier that above-described embodiment one provides:
Component carrier is deleted in step 1, base station;
Base station is by operation management maintain (Operation Administration Maintenance, referred to as OAM) configuration or soft and hardware setting stop the work of this component carrier, be specially: stop the transmitting of radio-frequency head, the transmission of halt system information, the generation that stops pilot tone and transmission, stop all control operations.
Step 2, UE measure deleted component carrier or monitor or send data, and measurement result is reported to base station;
Due to base station, delete the information of component carrier and do not inform UE, UE still can measure or monitor or send data to deleted component carrier; Particularly, the behavior of measurement or monitoring or transmission data is all to carry out according to prior art, for: 1 transmitting SRS information; The measurement of 2CQI/PMI/RI/PTI; 3 monitor PDCCH; Detailed content can be with reference to 3GPP standard 36.321 agreements;
Further, UE reports base station by measurement result; The approach reporting can be following one or more: principal component carrier wave, not deleted auxiliary component carrier; The measurement result of UE reports as prior art, is not repeated herein.
Step 3a, base station send MAC CE deleted component carrier are carried out to deexcitation;
Base station sends to UE by component carrier (principal component carrier wave or not deleted auxiliary component carrier) by MAC CE control information;
Preferably, deleted component carrier is auxiliary component carrier;
It should be noted that, concrete control message content, form in MAC CE control message are all continuing to use of prior art, are not repeated herein;
Step 3b, base station do not send MAC CE deleted component carrier are carried out to deexcitation;
Base station is the UE reporting in step 2 for described UE() the carrier wave of deletion no longer carry out data dispatch, waiting timer is overtime, deleted component carrier is according to the automatic deexcitation of prior art;
It should be noted that, step 3a, step 3b are the relation of "or", that is to say, in this preferred implementation of embodiment mono-, the implementation of step 3 has two schemes optional, be respectively step 3a and step 3b, in the specific implementation, can only adopt a kind of scheme in step 3a or step 3b to realize.
Step 4, UE send deexcitation confirmation to base station;
UE sends to base station by following one or more approach by deexcitation confirmation: principal component carrier wave, not deleted auxiliary component carrier; Particularly, deexcitation confirmation shows that UE has completed the deactivating operation to deleted component carrier;
In addition, step 4 is optional step, that is to say, in this preferred implementation of embodiment mono-, step 4 is dispensable.
The delet method of the component carrier providing below in conjunction with Fig. 4 to Fig. 7 and preferred embodiment one and two pairs of above-described embodiments one of preferred embodiment is further described in more detail.
Preferred embodiment one
Please also refer to Fig. 4, Fig. 5, Fig. 4 deletes the schematic diagram of component carrier 3 according to the base station of the preferred embodiment of the present invention one, as shown in Figure 4, base station (eNB1) has 3 component carriers, be respectively component carrier 1, component carrier 2 and component carrier 3, being coated with of these three component carriers is overlapping.In the present embodiment, eNB1 need to delete component carrier 3, the reason of trigger deleting be primary user (for example: broadcasting and TV) arrive; That is to say, this frequency of the frequency f 1(that component carrier 3 is used belongs to TVWS frequency range), originally do not have primary user to use (for example: in this frequency, do not send radio and television data), and used as component carrier 3 by eNB1; When primary user arrives, namely need in frequency f 1, send radio and television data, eNB1 needs " abdicating " its frequency f of using 1; Therefore eNB1 need to delete component carrier 3, so that primary user can send data on f1, otherwise will produce interference to primary user;
In the present embodiment, in the common region covering of component carrier 1,2,3, UE1 carries out resident on component carrier 1, that is to say, for UE1, component carrier 1 is its Pcell; And component carrier 2 and 3 is Scell of UE1.
Fig. 5 deletes the flow chart of component carrier 3 according to the base station of the preferred embodiment of the present invention one, as shown in Figure 5, this flow process comprises the following steps (step S502-step S508):
Step S502, eNB1 deletes component carrier 3;
Base station stops the work of component carrier 3 by operation management maintain (Operation Administration Maintenance, referred to as OAM) configuration; Be specially: stop the transmitting of radio-frequency head, the transmission of halt system information, the generation that stops pilot tone and transmission, stop all control operations.
Step S504, UE1 measures or monitors or send data deleted component carrier 3, and measurement result is reported to eNB1;
Measure or monitor or the behavior that sends data is all to carry out according to prior art, comprising: 1UE1 will be on component carrier 3 transmitting SRS information; 2UE1 carries out CQI/PMI/RI/PTI measurement to component carrier 3; 3UE1 monitors the PDCCH of component carrier 3;
Preferably, the present embodiment reports eNB1 by Pcell by CQI/PMI/RI/PTI measurement result with UE1.By Scell, send measurement result identical with Pcell.
Step S506, eNB1 sends MAC CE deleted component carrier 3 is carried out to deexcitation;
ENB1 sends to UE1 by Pcell by MAC CE control information; This MAC CE control message comprises the control information of component carrier 3 deexcitations; Concrete control information is prior art, is not repeated herein.
Step S508, UE1 sends deexcitation confirmation to eNB1; Preferably, UE1 sends to eNB1 by Pcell by deexcitation confirmation:
Preferred embodiment two
Please also refer to Fig. 6, Fig. 7, Fig. 6 deletes the schematic diagram of component carrier 3 according to the base station of the preferred embodiment of the present invention two, as shown in Figure 6, base station (eNB2) has 3 component carriers, be respectively component carrier 1, component carrier 2 and component carrier 3, being coated with of these three component carriers is overlapping.In the present embodiment, eNB2 need to delete component carrier 3, the reason of trigger deleting be primary user (for example: broadcasting and TV) arrive; That is to say, this frequency of the frequency f 1(that component carrier 3 is used belongs to TVWS frequency range), originally do not have primary user to use (for example: in this frequency, do not send radio and television data), and used as component carrier 3 by eNB2; When primary user arrives, namely need in frequency f 1, send radio and television data, eNB2 needs " abdicating " its frequency f of using 1; Therefore eNB1 need to delete component carrier 3, so that primary user can send data on f1, otherwise will produce interference to primary user;
In the present embodiment, in the common region covering of component carrier 1,2,3, UE2 carries out resident on component carrier 1, that is to say, for UE2, component carrier 1 is its Pcell; And component carrier 2 and 3 is Scell of UE2.
Fig. 7 deletes the flow chart of component carrier 3 according to the base station of the preferred embodiment of the present invention two, as shown in Figure 7, this flow process comprises the following steps (step S702-step S706):
Step S702, eNB2 deletes component carrier 3;
Base station stops the work of component carrier 3 by operation management maintain (Operation Administration Maintenance, referred to as OAM) configuration; Be specially: stop the transmitting of radio-frequency head, the transmission of halt system information, the generation that stops pilot tone and transmission, stop all control operations.
Step S704, UE2 measures or monitors or send data deleted component carrier 3, and measurement result is reported to eNB1;
Measure or monitor or the behavior that sends data is all to carry out according to prior art, comprising: 1UE2 will be on component carrier 3 transmitting SRS information; 2UE2 carries out CQI/PMI/RI/PTI measurement to component carrier 3; 3UE2 monitors the PDCCH of component carrier 3;
Preferably, the present embodiment reports eNB2 by Pcell by CQI/PMI/RI/PTI measurement result with UE2.By Scell, send measurement result identical with Pcell.
Step S706(comprises step S706a and step S706b), eNB2 does not send MAC CE deleted component carrier is carried out to deexcitation;
Step S706a, eNB2 no longer carries out data dispatch for the component carrier of deletion 3 of UE2, and waiting timer sCellDeactivationTimer is overtime; It is example that the present embodiment be take sCellDeactivationTimer=32 radio frames=320ms; That is to say, eNB2 does not carry out the scheduling transmission of data on component carrier 3 for UE2, and timer sCellDeactivationTimer is reciprocal;
Step S706a, then, deleted component carrier 3 is according to the automatic deexcitation of prior art for timer by the time.
Fig. 8 is the delet method flow chart according to the component carrier of the embodiment of the present invention two, and as shown in Figure 8, this flow process comprises the following steps (step S802-step S804):
Step S802, component carrier is deleted in base station;
Step S804, in the situation that receive the measurement report obtaining after the component carrier for having deleted of subscriber equipment (UE) transmission is measured, base station sends Radio Resource by intended component carrier wave to UE and controls (RRC) connection reconfiguration message to notify UE to carry out releasing operation to the component carrier of having deleted.
In the present embodiment, intended component carrier wave is for below one of at least: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
In the present embodiment, the operation that UE measures for the component carrier of having deleted comprise following one of at least: the measurement of transmission detection reference signal (SRS) information, channel quality indication (CQI)/pre-coding matrix indication (PMI)/order indication (RI)/precoding type indication (PTI), monitor physical downlink control channel (PDCCH).
The type of the component carrier of preferably, having deleted is auxiliary component carrier.
Preferably, the operation that component carrier is deleted in base station comprise following one of at least: stop the transmitting of radio-frequency head, the transmission of halt system information, the generation that stops pilot tone and transmission, stop all control operations.
In the present embodiment, base station receives measurement report by one of following approach: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
In the present embodiment, after UE carries out releasing operation to the component carrier of having deleted, also comprise: base station receives the release that UE sends and completes confirmation, wherein, discharged confirmation and be used to indicate UE the releasing operation of the component carrier of having deleted is completed.
In the present embodiment, base station is received and has been discharged confirmation by one of following approach: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
Please refer to Fig. 9, Fig. 9 is the deletion flow chart according to the component carrier of the preferred implementation of the embodiment of the present invention two.In actual applications, can adopt the preferred implementation shown in Fig. 9 to implement the delet method of the component carrier that above-described embodiment two provides completely:
Component carrier is deleted (with the step 1) in Fig. 3 in step 1, base station;
Base station stops the work of this component carrier by operation management maintain (Operation Administration Maintenance, referred to as OAM) configuration or soft and hardware setting; Be specially: stop the transmitting of radio-frequency head, the transmission of halt system information, the generation that stops pilot tone and transmission, stop all control operations.
Step 2, UE measure or monitor or send data to deleted component carrier, and measurement result is reported to base station (with the step 2 in Fig. 3);
Due to base station, delete the information of component carrier and do not inform UE, UE still can measure or monitor or send data to deleted component carrier; Concrete, the behavior of measurement or monitoring or transmission data is all to carry out according to prior art, for: 1 transmitting SRS information; The measurement of 2CQI/PMI/RI/PTI; 3 monitor PDCCH; Detailed content can be with reference to 3GPP standard 36.321 agreements;
Preferably, UE reports base station by measurement result; The approach reporting can be following one or more: principal component carrier wave, not deleted auxiliary component carrier; The measurement result of UE reports as prior art, is not repeated herein.
Step 3, base station send release message deleted component carrier are discharged;
Base station sends to UE by component carrier (principal component carrier wave or not deleted auxiliary component carrier) by RRC Connection Reconfiguration information;
Preferably, release message comprises in RRC Connection Reconfiguration, and sends;
Preferably, deleted component carrier is auxiliary component carrier;
Preferably, this preferred implementation has been deleted the release of component carrier, discharges this component carrier, shows that base station is by this component carrier deexcitation simultaneously;
It should be noted that, control message content, form concrete in RRC Connection Reconfiguration are all continuing to use of prior art, are not repeated herein;
Step 4, UE send and have discharged confirmation to base station;
UE completes confirmation by following one or more approach by release and sends to base station: principal component carrier wave, not deleted auxiliary component carrier; Release completes confirmation and shows that UE has completed the releasing operation to deleted component carrier;
Preferably, this release completes confirmation and comprises in RRC Connection Reconfiguration Complete information, and sends;
In addition, step 4 is optional step, that is to say, in this preferred implementation of embodiment bis-, step 4 is dispensable.
The delet method of the component carrier providing below in conjunction with Figure 10 and Figure 11 and three pairs of above-described embodiments two of preferred embodiment is further described in more detail.
Preferred embodiment three
Please also refer to Figure 10, Figure 11, Figure 10 deletes the schematic diagram of component carrier 3 according to the base station of the preferred embodiment of the present invention three, as shown in figure 10, there are 3 component carriers base station (eNB3), be respectively component carrier 1, component carrier 2 and component carrier 3, being coated with of these three component carriers is overlapping.In the present embodiment, eNB3 need to delete component carrier 3, the reason of trigger deleting be primary user (for example: broadcasting and TV) arrive; That is to say, this frequency of the frequency f 1(that component carrier 3 is used belongs to TVWS frequency range), originally do not have primary user to use (for example: in this frequency, do not send radio and television data), and used as component carrier 3 by eNB3; When primary user arrives, namely need in frequency f 1, send radio and television data, eNB3 needs " abdicating " its frequency f of using 1; Therefore eNB1 need to delete component carrier 3, so that primary user can send data on f1, otherwise will produce interference to primary user;
In the present embodiment, in the common region covering of component carrier 1,2,3, UE3 carries out resident on component carrier 1, that is to say, for UE3, component carrier 1 is its Pcell; And component carrier 2 and 3 is Scell of UE3.
Figure 11 deletes the flow chart of component carrier 3 according to the base station of the preferred embodiment of the present invention three, as shown in figure 11, this flow process comprises the following steps (step S1102-step S1108):
Step S1102, eNB3 deletes component carrier 3;
Base station is by operation management maintain (Operation Administration Maintenance, referred to as OAM) configuration stops the work of component carrier 3, is specially: stop the transmitting of radio-frequency head, the transmission of halt system information, the generation that stops pilot tone and transmission, stop all control operations.
Step S1104, UE3 measures or monitors or send data deleted component carrier 3, and measurement result is reported to eNB3;
Measure or monitor or the behavior that sends data is all to carry out according to prior art, for: 1UE3 will be on component carrier 3 transmitting SRS information; 2UE3 carries out CQI/PMI/RI/PTI measurement to component carrier 3; 3UE3 monitors the PDCCH of component carrier 3;
Preferably, the present embodiment reports eNB3 by Pcell by CQI/PMI/RI/PTI measurement result with UE3.By Scell, send measurement result identical with Pcell.
Step S1106, eNB3 sends release message deleted component carrier 3 is discharged;
ENB3 sends to UE3 by Pcell by RRC Connection Reconfiguration information; In RRC Connection Reconfiguration, comprise the control information that discharges component carrier 3; Wherein, the control information content, the form that are included in the release component carrier 3 of RRC Connection Reconfiguration are all prior art, and the present embodiment is not repeated.
Preferably, eNB3 discharges deleted component carrier 3, shows that eNB3 is by component carrier 3 deexcitations simultaneously simultaneously;
Step S1108, UE sends and has discharged confirmation to base station;
Preferably, UE sends to eNB by Pcell by deexcitation confirmation, and wherein, deexcitation confirmation shows that UE has completed the releasing operation to deleted component carrier;
Preferably, the present embodiment completes confirmation with this release and comprises in RRC Connection Reconfiguration Complete information, and sends.
The delet method of the component carrier that employing above-described embodiment provides, having solved base station has deleted in the situation of corresponding component carrier, the operation that UE still continue to monitor PDCCH, measure, report causes expends the problem of self energy content of battery, and then has reached and avoid UE repeating monitoring, measure and report the effect of operation after component carrier is deleted in base station.
Figure 12 is according to the structured flowchart of the delete device of the component carrier of the embodiment of the present invention one, and this device is in order to the delet method of the component carrier realizing above-described embodiment one and provide, and as shown in figure 12, this device mainly comprises: removing module 10 and processing module 20.Wherein, removing module 10, for deleting component carrier; Processing module 20, be connected to removing module 10, be used in the situation that receive the measurement report obtaining after the component carrier for having deleted of subscriber equipment (UE) transmission is measured, by intended component carrier wave, to UE, send media access control unit (MAC CE) control information, with notice UE, the component carrier of having deleted is carried out to deactivating operation, or stop the data dispatch of UE on the component carrier of having deleted so that terminal is initiatively carried out deactivating operation to the component carrier of having deleted after the scheduled duration of interval.
In the present embodiment, intended component carrier wave is for below one of at least: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
The type of the component carrier of preferably, having deleted is auxiliary component carrier.
Figure 13 is according to the structured flowchart of the delete device of the component carrier of the embodiment of the present invention two, and this device is in order to the delet method of the component carrier realizing above-described embodiment two and provide, and as shown in figure 13, this device mainly comprises: removing module 30 and processing module 40.Wherein, removing module 30, for deleting component carrier; Sending module 40, be connected to removing module 30, for in the situation that receive the measurement report obtaining after the component carrier for having deleted that subscriber equipment (UE) sends is measured, by intended component carrier wave, to UE, send Radio Resource and control (RRC) and connect reconfiguration message, with notice UE, the component carrier of having deleted is carried out to releasing operation.
In the present embodiment, intended component carrier wave is for below one of at least: principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
The type of the component carrier of preferably, having deleted is auxiliary component carrier.
The delete device of the component carrier that employing above-described embodiment provides, having solved base station has deleted in the situation of corresponding component carrier, the operation that UE still continue to monitor PDCCH, measure, report causes expends the problem of self energy content of battery, and then has reached and avoid UE repeating monitoring, measure and report the effect of operation after component carrier is deleted in base station.
As can be seen from the above description, the present invention has realized following technique effect:
Employing is notifying user equipment (UE) after component carrier is deleted in base station and not in time, but after user equipment to report measurement result, the related news that carry deexcitation indication or discharge indication to UE transmission are again so that UE in time the component carrier of having deleted is carried out to deactivating operation or releasing operation (or does not send any information to UE, make UE independently to the component carrier of having deleted, carry out deactivating operation or releasing operation after the scheduled duration of interval) mode, having solved base station has deleted in the situation of corresponding component carrier, UE still continues to monitor PDCCH, measure, the operation reporting causes expends the problem of self energy content of battery, and then reached and avoid UE repeating monitoring after component carrier is deleted in base station, measure and report the effect of operation.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (22)

1. a delet method for component carrier, is characterized in that, comprising:
Component carrier is deleted in base station;
In the situation that receive the measurement report obtaining after the component carrier for having deleted of user equipment (UE) transmission is measured, described base station sends the MAC CE control information of media access control unit to notify described UE to carry out deactivating operation to the described component carrier of having deleted by intended component carrier wave to described UE, or stops the data dispatch of described UE on the described component carrier of having deleted so that terminal is initiatively carried out deactivating operation to the described component carrier of having deleted after the scheduled duration of interval.
2. method according to claim 1, is characterized in that, described intended component carrier wave is for below one of at least:
Principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
3. method according to claim 1, is characterized in that, the operation that described UE measures for the described component carrier of having deleted comprise following one of at least:
Measurement, the monitoring physical downlink control channel PDCCH of transmission detection reference signal SRS information, channel quality indicator (CQI)/pre-coding matrix indication PMI/ order indication RI/ precoding type indication PTI.
4. according to the method in claim 2 or 3, it is characterized in that, the type of the described component carrier of having deleted is auxiliary component carrier.
5. method according to claim 4, is characterized in that, the operation that component carrier is deleted in described base station comprise following one of at least:
Stop the transmitting of radio-frequency head, the transmission of halt system information, the generation that stops pilot tone and transmission, stop all control operations.
6. method according to claim 5, is characterized in that, described base station receives described measurement report by one of following approach:
Described principal component carrier wave, described not deleted auxiliary component carrier, described principal component carrier wave and described not deleted auxiliary component carrier.
7. method according to claim 1, is characterized in that, after described UE carries out deactivating operation to the described component carrier of having deleted, also comprises:
Described base station receives the deexcitation confirmation that described UE sends, and wherein, described deexcitation confirmation is used to indicate described UE the deactivating operation of the described component carrier of having deleted is completed.
8. method according to claim 7, is characterized in that, described base station receives described deexcitation confirmation by one of following approach:
Principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
9. a delete device for component carrier, is applied to base station, it is characterized in that, comprising:
Removing module, for deleting component carrier;
Processing module, be used in the situation that receive the measurement report obtaining after the component carrier for having deleted of user equipment (UE) transmission is measured, by intended component carrier wave, to described UE, send the MAC CE control information of media access control unit to notify described UE to carry out deactivating operation to the described component carrier of having deleted, or stop the data dispatch of described UE on the described component carrier of having deleted so that terminal is initiatively carried out deactivating operation to the described component carrier of having deleted after the scheduled duration of interval.
10. method according to claim 9, is characterized in that, described intended component carrier wave is for below one of at least:
Principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
11. according to the device described in claim 9 or 10, it is characterized in that, the type of the described component carrier of having deleted is auxiliary component carrier.
The delet method of 12. 1 kinds of component carriers, is characterized in that, comprising:
Component carrier is deleted in base station;
In the situation that receive the measurement report obtaining after the component carrier for having deleted of user equipment (UE) transmission is measured, described base station sends radio resource control RRC connection reconfiguration message to notify described UE to carry out releasing operation to the described component carrier of having deleted by intended component carrier wave to described UE.
13. methods according to claim 12, is characterized in that, described intended component carrier wave is for below one of at least:
Principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
14. methods according to claim 12, is characterized in that, the operation that described UE measures for the described component carrier of having deleted comprise following one of at least:
Measurement, the monitoring physical downlink control channel PDCCH of transmission detection reference signal SRS information, channel quality indicator (CQI)/pre-coding matrix indication PMI/ order indication RI/ precoding type indication PTI.
15. according to the method described in claim 13 or 14, it is characterized in that, the type of the described component carrier of having deleted is auxiliary component carrier.
16. methods according to claim 15, is characterized in that, the operation that component carrier is deleted in described base station comprise following one of at least:
Stop the transmitting of radio-frequency head, the transmission of halt system information, the generation that stops pilot tone and transmission, stop all control operations.
17. methods according to claim 16, is characterized in that, described base station receives described measurement report by one of following approach:
Described principal component carrier wave, described not deleted auxiliary component carrier, described principal component carrier wave and described not deleted auxiliary component carrier.
18. methods according to claim 12, is characterized in that, after described UE carries out releasing operation to the described component carrier of having deleted, also comprise:
Described base station receives the release that described UE sends and completes confirmation, and wherein, described release completes confirmation and is used to indicate described UE the releasing operation of the described component carrier of having deleted is completed.
19. methods according to claim 18, is characterized in that, described base station receives described release by one of following approach and completes confirmation:
Principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
The delete device of 20. 1 kinds of component carriers, is applied to base station, it is characterized in that, comprising:
Removing module, for deleting component carrier;
Sending module, for in the situation that receive the measurement report obtaining after the component carrier for having deleted that user equipment (UE) sends is measured, by intended component carrier wave, to described UE, send radio resource control RRC connection reconfiguration message to notify described UE to carry out releasing operation to the described component carrier of having deleted.
21. devices according to claim 20, is characterized in that, described intended component carrier wave is for below one of at least:
Principal component carrier wave, not deleted auxiliary component carrier, principal component carrier wave and not deleted auxiliary component carrier.
22. according to the device described in claim 20 or 21, it is characterized in that, the type of the described component carrier of having deleted is auxiliary component carrier.
CN201210312223.2A 2012-08-29 2012-08-29 The delet method and device of component carrier Expired - Fee Related CN103634087B (en)

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