CN102340873B - In carrier aggregation, the adjustment of component carrier is realized to method and the device of control - Google Patents
In carrier aggregation, the adjustment of component carrier is realized to method and the device of control Download PDFInfo
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- CN102340873B CN102340873B CN201010236759.1A CN201010236759A CN102340873B CN 102340873 B CN102340873 B CN 102340873B CN 201010236759 A CN201010236759 A CN 201010236759A CN 102340873 B CN102340873 B CN 102340873B
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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
- H04L5/0091—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
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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
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Abstract
The invention discloses the method and the device that in a kind of carrier aggregation, the adjustment of component carrier are realized to control, comprise the ability according to subscriber equipment, the adjustment of component carrier is controlled.Specifically comprise: base station, when carrying out carrier wave adjustment (as increased or replacing or activate), according to the ability information comprising the subscriber equipment of transceiver ability information that UE reports, determines the transceiver of component carrier and base station data communication; Or, when exceeding the component carrier of the limit of power of UE in base station by RRC reprovision command configuration, UE returns configuration failure to base station, notify that failure cause is override capability scope simultaneously, and UE does not perform RRC process of reconstruction, ignore the order of RRC reprovision, continue the configuration before adopting the order of RRC reprovision.By the inventive method, decrease in carrier aggregation, due to the adjustment to component carrier, the service disconnection that such as increase or deletion or replacement operation or activation deactivating operation etc. cause, and avoid possible RRC process of reconstruction.
Description
Technical field
The present invention relates to carrier aggregation (CA, CarrierAggregation), in espespecially a kind of carrier aggregation, the adjustment of component carrier is realized to method and the device of control.
Background technology
In Long Term Evolution (LongTermEvolution, LTE) system, the maximum bandwidth of support is 20MHz, UE can report self ability information when base station requests, wherein comprises the band information of support.Fig. 1 is the schematic flow sheet of existing UE capability reporting, as shown in Figure 1, base station notifies UE (step 100) by request UE reporting ability informational message (UECapabilityEnquiry), after UE receives, by reporting ability informational message (UECapabilityInformation), the ability information of self is reported base station (step 101).
In order to provide higher data rate to mobile subscriber, advanced long-term evolution system (LTE-A, LongTermEvolutionAdvance) carrier aggregation (CA is proposed, CarrierAggregation) technology, its objective is that the UE for having respective capabilities provides larger broadband, thus improve the peak rate of UE.In LTE, the maximum downstream transmission bandwidth of system support is 20MHz, the application of carrier aggregation the component carrier (CC, ComponentCarriers) of two or more is aggregating support be greater than 20MHz, the maximum transmission bandwidth being no more than 100MHz.Whether carrier aggregation is continuous on frequency domain by each component carrier, can be divided into continuous print carrier aggregation and discrete carrier aggregation.
In order to support carrier aggregation, the corresponding requirement of radio-frequency structure demand fulfillment of UE.Continuous print component carrier is polymerized, UE needs a maximum bandwidth and (comprises receiving equipment (Rx more than the twoway radio of 20MHz, Receiver), with transmitting apparatus (Tx,), or have multiple maximum bandwidth to be that Rx and Tx of 20MHz is operated on continuous print component carrier simultaneously Transmitter).Be polymerized for discrete component carrier, it is that Rx and Tx of 20MHz is operated on discrete component carrier simultaneously that UE needs multiple maximum bandwidth.
UE is when connected state, and in order to meet the demand that service traffics increase, the control operation of component carrier increase can be carried out in base station; When service traffics reduce, the control operation of component carrier deletion can be carried out in base station; Current when carrying out the component carrier signals degradation of being polymerized, the control operation of component carrier deletion or replacement can be carried out in base station.When realizing above-mentioned control to the adjustment of component carrier, because UE needs to adjust the operations such as the center frequency point of work according to the current component carrier carrying out being polymerized, therefore, when UE only has a transceiver, carry out aforesaid operations all can cannot receive and send data by transceiver for some time at every turn, thus cause service disconnection.
Even if UE has multiple transceiver, if the component carrier selected is unreasonable, also service disconnection may be caused.Such as: suppose that UE has two transceivers, current enables one of them transceiver, if the component carrier selected is unreasonable, base station selected configure to UE with the component carrier continuous print component carrier of current use, this adjustment to component carrier will relate to the transceiver in current use, and this transceiver is adjusted, therefore can cause service disconnection.
In addition, the component carrier due to base station configuration exceeds the limit of power of UE, and UE performs the process of reconstruction that wireless heterogeneous networks (RRC) connects, and also can cause service disconnection.
Due to the burst feature of business, in lte-a system, introduce the concept of carrier activation/deexcitation.UE only carries out digital received and sent on the carrier wave activated, and for temporary transient no carrier wave, base station is notified by implicit commands or these carrier waves of implicit rule deexcitation, on the carrier wave of deexcitation, UE does not monitor Physical Downlink Control Channel (PDCCH, PhysicalDownlinkControlChannel), does not receive Physical Downlink Shared Channel (PDSCH yet, PhysicalDownlinkSharedChannel) data on, thus the object reaching power saving.When UE activation or deactivation of component carrier, above-mentioned service disconnection can occur equally.
There is the LTE-AUE of carrier aggregation capacity, can simultaneously transceiving data on multiple component carrier under connected state, base station can be that UE specifies a principal component carrier wave (PCC by explicit configuration or according to protocol conventions, PrimaryComponentCarrier), other component carrier is called auxiliary component carrier (SCC, SecondaryComponentCarrier), Serving cell on PCC is called main Serving cell (Pcell, PrimaryCell), Serving cell on SCC is called auxiliary serving cell (Scell, SecondaryCell).If Radio Link Failure (RLF) occurs descending PCC (DLPCC), UE needs the process of reconstruction performing RRC connection; If reprovision failure, UE also needs to perform RRC process of reconstruction.
Summary of the invention
In view of this, main purpose of the present invention is to provide the method and the device that in a kind of carrier aggregation, the adjustment of component carrier are realized to control, can avoid the generation of service disconnection situation to greatest extent.
For achieving the above object, technical scheme of the present invention is achieved in that
In carrier aggregation, the adjustment of component carrier is realized to the method controlled, comprising: according to the ability of user equipment (UE), the adjustment of component carrier is controlled.
The described adjustment to component carrier is carried out control and is comprised:
Base station requests UE reporting ability information, UE reports the ability information of the subscriber equipment comprising self transceiver ability information to base station;
The transceiver of UE for component carrier and base station data communication, when carrying out carrier wave adjustment, according to the transceiver ability information that UE reports, is determined in base station.
Described transceiver ability information comprises supports the number of separate bands or the number of transceiver.
Described transceiver ability information also comprises the bandwidth of the correspondence of each separate bands or transceiver support, or comprises the total bandwidth of support.
The described adjustment to component carrier is carried out control and is comprised:
The frequency band that base station is supported according to UE, configures component carrier by the order of radio resource control RRC reprovision to UE;
When being configured with the component carrier of the limit of power exceeding UE in base station, UE returns configuration failure to base station.
When the described base station receiving configuration failure determines described UE to be switched in object base station, the method also comprises:
The described base station receiving configuration failure sends handover request message to object base station, carries the transceiver ability information that UE reports; Handover request ack message is responded to the base station receiving configuration failure in described object base station, is wherein carried to the component carrier information of UE configuration;
The component carrier message notice UE that the described base station receiving configuration failure will be configured to UE by switching command; After described UE receives, if find that the component carrier information of object base station configuration exceeds the ability of self, respond handoff failure to the described base station receiving configuration failure.UE ignores this switching command simultaneously, continues to keep the configuration before receiving this switching command, does not initiate RRC process of reconstruction.
While described UE returns configuration failure or handoff failure to base station, notice failure cause is override capability scope.
The method also comprises: described UE ignores the order of described RRC reprovision or shown switching command, the configuration before continuing to adopt the order of RRC reprovision or before switching command.
The described adjustment to component carrier comprises: component carrier increases or component carrier is deleted or component carrier is replaced or component carrier activates deexcitation.
In carrier aggregation, the adjustment of component carrier is realized to the device controlled, at least comprise control module, for the ability according to subscriber equipment, the adjustment of component carrier is controlled.
Described device is arranged in a base station; This device also comprises the first receiver module, wherein,
First receiver module, for receiving the ability information comprising the subscriber equipment of self transceiver ability information reported from UE, and exports to adjusting module;
Control module, specifically for when carrying out carrier wave adjustment, according to the transceiver ability information that UE reports, determines the transceiver of UE for component carrier and base station data communication.
Described transceiver ability information comprises supports the number of separate bands or the number of transceiver.
Described transceiver ability information also comprises each separate bands or bandwidth corresponding to transceiver, or comprises the total bandwidth of support.
Described device is arranged in a user device; This device also comprises the second receiver module, wherein,
Second receiver module, for receive from base station, band configurations that base station is supported according to UE, the RRC reconfiguration message that configures component carrier to UE;
Control module, specifically for when determining that base station is configured with the component carrier of the limit of power exceeding UE self, configuration failure is returned to base station, notify that failure cause is the technical scheme that override capability scope provides as can be seen from the invention described above simultaneously, comprise the ability according to subscriber equipment, the adjustment of component carrier is controlled.Specifically comprise: UE reports the ability information of the subscriber equipment comprising self transceiver ability information to base station, base station is when carrying out carrier wave adjustment (as increased or replacing or activate), according to the transceiver ability information that UE reports, determine the transceiver of component carrier and base station data communication; Or, the frequency band that base station is supported according to UE, component carrier is configured to UE by the order of RRC reprovision, if when base station is configured with the component carrier of the limit of power exceeding UE, UE returns configuration failure to base station, notify that failure cause is override capability scope, and UE does not perform RRC process of reconstruction simultaneously, ignore the order of RRC reprovision, continue the configuration before adopting the order of RRC reprovision.By the inventive method, decrease in carrier aggregation, due to the adjustment to component carrier, the service disconnection that such as increase or deletion or replacement operation or activation deactivating operation etc. cause, and avoid possible RRC process of reconstruction.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of existing UE capability reporting;
Fig. 2 is a kind of schematic flow sheet realizing embodiment in carrier aggregation of the present invention, the adjustment of component carrier being realized to the method controlled;
Fig. 3 is the schematic flow sheet in carrier aggregation of the present invention, the another kind of the method that the adjustment realization of component carrier controls being realized to embodiment;
Fig. 4 is the schematic diagram of the component carrier adjustment of first embodiment of the invention;
Fig. 5 is the schematic diagram of the component carrier adjustment of second embodiment of the invention;
Fig. 6 is the schematic diagram of the component carrier adjustment of third embodiment of the invention;
Fig. 7 is the schematic diagram of the component carrier adjustment of fourth embodiment of the invention;
Fig. 8 is the schematic diagram of the component carrier adjustment of fifth embodiment of the invention.
Embodiment
State of activation is defaulted as at the component carrier increased, or under component carrier does not distinguish activation/deactivation state status, when UE only has a transceiver, when base station configures component carrier (namely adjusting the component carrier of this UE) to UE, UE needs to adjust the operations such as the center frequency point of transceiver work according to the current component carrier carrying out being polymerized, equally, when base station is deleted or replace component carrier, need equally to perform aforesaid operations, and perform aforesaid operations, the service disconnection of UE must be caused, when UE has multiple transceiver, when base station configures component carrier to UE, if the transceiver being responsible for the data communication of new configuration component carrier and base station is also responsible for the data communication that other has configured component carrier and base station simultaneously, or when component carrier is deleted in base station, if the data communication of other not deleted component carrier and base station is also responsible for by the transceiver being responsible for the data communication of component carrier and the base station of deleting simultaneously, UE needs to adjust the operations such as the center frequency point of transceiver work according to the current component carrier carrying out being polymerized, perform aforesaid operations, the business of UE all can be interrupted.
Deactivation status is defaulted as at the component carrier increased, need to control control unit (MACCE) activation by media interviews and just can carry out the data communication with base station, now, the adjustment operation of UE to transceiver will perform, after namely service disconnection occurs in and receives activation or deactivation command after receiving activation or deactivation command.
Herein following examples all based on the first situation be described (component carrier configuration after be namely state of activation, can directly and base station carry out data communication).The second situation (is deactivation status after component carrier configuration, data communication could be carried out with base station after needing to receive the MACCE of activation) under process, similar with the first situation, according to the inventive method, those skilled in the art are easy to realize, and will repeat no more.
In carrier aggregation of the present invention, the method that the adjustment of component carrier realizes controlling is comprised: according to the ability of subscriber equipment, the adjustment of component carrier is controlled.Specific implementation comprises the following two kinds method:
Fig. 2 is a kind of schematic flow sheet realizing embodiment in carrier aggregation of the present invention, the adjustment of component carrier being realized to the method controlled, and as shown in Figure 2, first method comprises:
Base station requests UE reporting ability informational message (step 200), UE reports the ability information (step 201) of the subscriber equipment comprising self transceiver ability information to base station, base station is when carrying out carrier wave adjustment (as increased or replacing or activate), according to the transceiver ability information that UE reports, determine the transceiver (step 202) of UE for component carrier and base station data communication.Such as, UE has two transceivers, even if base station is configured with continuous print component carrier, the data communication of UE also can be specified to enable component carrier that another one transceiver is responsible for newly increasing and base station, the transceiver enabled does not need to carry out any operation, continue to carry out data communication with base station, would not service disconnection be caused like this.By step 202; base station achieves the transceiver ability information reported according to UE; farthest ensure that the continuous execution of business; specific strategy after base station obtains the transceiver ability information that reports of UE be hold facile; strategy is a lot; to illustrate in embodiment in follow-up literary composition description, but the protection range be not intended to limit the present invention.
Wherein, the transceiver ability information reported comprises: support the number of separate bands or the number of transceiver; Can further include the bandwidth of the correspondence of each separate bands or transceiver support, or comprise the total bandwidth of support.
Fig. 3 is the schematic flow sheet in carrier aggregation of the present invention, the another kind of the method that the adjustment realization of component carrier controls being realized to embodiment, and as shown in Figure 3, second method comprises:
The frequency band that base station is supported according to UE, component carrier (step 300) is configured to UE by the order of RRC reprovision, if when base station is configured with the component carrier of the limit of power exceeding UE (step 301), UE returns configuration failure to base station, and can notify that failure cause is override capability scope (step 302), UE does not perform RRC process of reconstruction, ignores the order of RRC reprovision, continues the configuration (step 303) before adopting the order of RRC reprovision.In the present invention, this RRC reconfiguration failure can not cause RRC to rebuild, and namely UE will keep the configuration that receives before this RRC reallocation message, and ignores this RRC and reshuffle.The inventive method compared with prior art, for this RRC reconstitution process, only that base station is configured with the component carrier exceeding UE limit of power, can not the business current to UE have an impact, and in this case, because UE of the present invention does not need to perform RRC process of reconstruction, therefore, avoid the appearance of service disconnection.In step 301, whether the component carrier of base station configuration is the component carrier of the limit of power exceeding UE, is that UE can be known, description of illustrating in the embodiment in follow-up literary composition, but the protection range be not intended to limit the present invention.
By the inventive method, decrease in carrier aggregation, due to the adjustment to component carrier, the service disconnection that such as increase or deletion or replacement operation or activation deactivating operation etc. cause, and avoid possible RRC process of reconstruction.
For the inventive method, also provide the device in a kind of carrier aggregation, the adjustment of component carrier being realized to control, apparatus of the present invention can be arranged in a user device, also can arrange in a base station.Apparatus of the present invention at least comprise control module, for the ability according to subscriber equipment, control the adjustment of component carrier.
When apparatus of the present invention are arranged in a base station, this device also comprises the first receiver module, wherein,
First receiver module, for receiving the ability comprising the subscriber equipment of self transceiver ability information reported from UE, and exports to adjusting module.
Control module, specifically for when carrying out carrier wave adjustment, according to the transceiver ability information that UE reports, determines the transceiver of component carrier and base station data communication.
When apparatus of the present invention are arranged in a user device, this device also comprises the second receiver module.Wherein,
Second receiver module, for receive from base station, band configurations that base station is supported according to UE, the RRC reconfiguration message that configures component carrier to UE.
Control module, specifically for when determining that base station is configured with the component carrier of the limit of power exceeding UE self, returns configuration failure to base station, notifies that failure cause is override capability scope simultaneously.
Below in conjunction with embodiment, the inventive method is described in detail.
Fig. 4 is the schematic diagram of the component carrier adjustment of first embodiment of the invention, in Fig. 4, and the blank frequency band representing the free time, the frequency band that lattice shadow representation uses.In first embodiment, suppose that UE to reside in carrier aggregation subdistrict 1 on CC1, carrier aggregation subdistrict 1 supports that three component carriers are polymerized, that CC1 is (if descending center frequency point is 2120MHz respectively, ownership frequency band 1 (band1), bandwidth is 20MHz), CC2 (if descending center frequency point is 2140MHz, ownership band1, bandwidth is 20MHz), CC3 is (if descending center frequency point is 879MHz, ownership band5, bandwidth is 20MHz), UE has a transceiver (being expressed as R × T × 1), support bandwidth is 40MHz, as shown in Fig. 4 (a).
Suppose due to upper-layer service demand, UE initiates RRC connection establishment request (mainly comprising random access procedure) on CC1, after random access procedure completes, UE enters connected state, CC1 is PCC, and the Serving cell on CC1 is Pcell, and the center frequency point of transceiver work is 2120MHz, bandwidth is 20MHz, as shown in Fig. 4 (b).
Then, base station requests UE reports transceiver ability information, and the transceiver ability information that UE reports comprises: the band list of support, as comprised band1/2/5, and supports the number of independent band, is 1 in the first embodiment; Further, can also comprise the bandwidth that this independent band supports, be 40MHz in the first embodiment.
Suppose that, because service traffics increase, base station needs to configure component carrier.According to the transceiver ability information that UE reports, base station knows that UE can only support continuous print component carrier, so configure CC2 to UE to carry out carrier aggregation, bandwidth is 20MHz; Further, according to the transceiver ability information that UE reports, because UE only has a transceiver, now the data communication of CC2 and base station can not be responsible for by appointed transceiving equipment.
UE is according to the frequency of CC1 and CC2, and the center frequency point of adjustment transceiver work is 2130MHz, and bandwidth is 40MHz, and in adjustment process, business is in interrupt status.After having adjusted, UE carries out data communication, as Fig. 4 (c) by CC1 and CC2 and base station.When the present embodiment highlights single-transceiver, the implementation method of the component carrier of the transceiver ability information option and installment that base station can report according to UE.
If auxiliary component carrier exists activate deactivation status, so, after base station configures CC2 to UE, UE does not carry out any operation, just carries out the adjustment of transceiver after receiving the MACCE of base station activation.Hereinafter also similar in the second embodiment, the 3rd embodiment.
Fig. 5 is the schematic diagram of the component carrier adjustment of second embodiment of the invention, in Fig. 5, and the blank frequency band representing the free time, the frequency band that lattice shadow representation uses.In a second embodiment, suppose that UE to reside in carrier aggregation subdistrict 1 on CC1, carrier aggregation subdistrict 1 supports that three component carriers are polymerized, that CC1 is (if descending center frequency point is 2120MHz respectively, ownership band1, bandwidth is 20MHz), CC2 is (if descending center frequency point is 2140MHz, ownership band1, bandwidth is 20MHz), CC3 is (if descending center frequency point is 879MHz, ownership band5, bandwidth is 20MHz), UE has two transceivers (to be expressed as R × T × 1, with R × T × 2), support that bandwidth is 20MHz respectively, 40MHz, shown in Fig. 5 (a).
Suppose due to upper-layer service demand, UE initiates RRC connection establishment request (mainly comprising random access procedure) on CC1, after random access procedure completes, UE enters connected state, CC1 is PCC, and the Serving cell on CC1 is Pcell, and the center frequency point of second transceiver work is 2120MHz, bandwidth is 20MHz, as shown in Fig. 5 (b).
Then, base station requests UE reports transceiver ability information, includes in the transceiver ability information that UE reports: the band list that UE supports, as comprised band1/2/5, and supporting the number of independent band, is 2 in the second embodiment; Further, can also comprise the bandwidth that this independent band supports, be 20MHz/40MHz in the second embodiment; Further, can also comprise the transceiver of current responsible CC1 and base station data communication, such as support to increase indication information in bandwidth at above-mentioned independent band, in the second embodiment, this indication information is designated as second independent band.
Suppose that, because service traffics increase, base station needs to configure component carrier.According to the transceiver ability information that UE reports, base station knows that UE had both supported continuous print component carrier, support again discrete component carrier, but, PCC is responsible for the communication with base station by second transceiver, therefore, base station determines that configuring CC3 to UE carries out carrier aggregation, bandwidth is 20MHz, and the transceiver of responsible CC3 and base station data communication can be specified to be that first transceiver (now also can not be specified, because CC3 and CC1 is not continuous print, therefore UE knows must enable first transceiver and carry out the data communication of responsible CC3 and base station).
UE enables the data communication that first transceiver is responsible for CC3 and base station, and the center frequency point of transceiver work is 879MHz, and bandwidth is 20MHz, and second transceiver does not need to adjust.After having adjusted, UE carries out data communication, as shown in Fig. 5 (c) by CC1 and CC3 and base station.
Suppose follow-up due to service traffics increase, base station is configured with CC2 to UE again and carries out carrier aggregation, bandwidth is 20MHz, and specify the transceiver being responsible for CC2 and base station data 2 to be that second transceiver (now also can not be specified, because CC2 and CC1 is continuous print, therefore, UE knows must enable second transceiver and carry out the data communication of responsible CC2 and base station); UE enables the data communication that second transceiver is responsible for CC2 and base station, and the center frequency point of transceiver work is 2130MHz, and bandwidth is 20MHz, and first transceiver does not need to adjust.After having adjusted, UE carries out data communication, as shown in Fig. 5 (d) by CC1, CC2 and CC3 and base station.
Afterwards, supposed that, because service traffics reduce, base station needed to delete component carrier.See according to the component carrier situation that current UE carries out being polymerized, CC2 can be deleted in base station, also can delete CC3:
If delete CC2, second transceiver needs to adjust, and as shown in Fig. 5 (e), and do not need adjustment due to first transceiver, therefore business can not be interrupted, and also needs to delete CC3 if follow-up, and business still can not be interrupted; If delete CC3, first transceiver can cut out, and second transceiver is unaffected, and therefore business also can not be interrupted, but if follow-up also needs deletes CC2, business will have been interrupted.Under comparing, the preferential component carrier (being the CC2 on second transceiver in the present embodiment) deleted on high bandwidth transceiver is more reasonable.
It should be noted that, one skilled in the art will appreciate that if delete because signal quality weakens the CC that causes, base station can only the first ropy component carrier of erasure signal.
Fig. 6 is the schematic diagram of the component carrier adjustment of third embodiment of the invention, in Fig. 6, and the blank frequency band representing the free time, the frequency band that lattice shadow representation uses.In the third embodiment, suppose that UE to reside in carrier aggregation subdistrict 1 on CC1, carrier aggregation subdistrict 1 supports that three component carriers are polymerized, that CC1 is (if descending center frequency point is 2120MHz respectively, ownership band1, bandwidth is 20MHz), CC2 is (if descending center frequency point is 2140MHz, ownership band1, bandwidth is 20MHz), CC3 is (if descending center frequency point is 879MHz, ownership band5, bandwidth is 20MHz), UE has two transceivers (to be expressed as R × T × 1, with R × T × 2), support that bandwidth is 20MHz respectively, 40MHz, shown in Fig. 6 (a).
Suppose due to upper-layer service demand, UE initiates RRC connection establishment request (mainly comprising random access procedure) on CC1, after random access procedure completes, UE enters connected state, CC1 is PCC, and the Serving cell on CC1 is Pcell, and the center frequency point of second transceiver work is 2120MHz, bandwidth is 20MHz, as shown in Fig. 6 (b).
Then, base station requests UE reports transceiver ability information, and the transceiver ability information that UE reports comprises: the band list of support, as comprised band1/2/5, and the number of transceiver (being 2 in the present embodiment); Further, the bandwidth (being 20MHz/40MHz in the present embodiment) that each transceiver is supported can also be comprised, or the total bandwidth (being 60MHz in the present embodiment) that all transceivers are supported; Further, the transceiver (as supported to increase indication information in bandwidth at above-mentioned independent band, being second independent band in the 3rd embodiment) of current responsible CC1 and base station data communication can also be comprised.
Suppose that, because service traffics increase, base station needs to configure component carrier.According to the transceiver ability information that UE reports, base station knows that UE had both supported continuous print component carrier, supports again discrete component carrier, and the current component carrier that can also configure 40MHz is polymerized.But, PCC is responsible for the communication of base station by second transceiver, therefore, base station can determine that configuring CC3 to UE carries out carrier aggregation, bandwidth is 20MHz, and the transceiver of responsible CC3 and base station data communication can be specified to be first transceiver (now also can not specify, because CC3 and CC1 is not continuous print, therefore UE knows must enable first transceiver and carry out the data communication of responsible CC3 and base station).
UE enables the data communication that first transceiver is responsible for CC3 and base station, and the center frequency point of transceiver work is 879MHz, and bandwidth is 20MHz, and second transceiver does not need to adjust.After having adjusted, UE carries out data communication, as shown in Fig. 6 (c) by CC1 and CC3 and base station.
Fig. 7 is the schematic diagram of the component carrier adjustment of fourth embodiment of the invention, in Fig. 7, and the blank frequency band representing the free time, the frequency band that lattice shadow representation uses.In the fourth embodiment, suppose that UE to reside in carrier aggregation subdistrict 1 on CC1, carrier aggregation subdistrict 1 supports that three component carriers are polymerized, that CC1 is (if descending center frequency point is 2120MHz respectively, ownership band1, bandwidth is 20MHz), CC2 is (if descending center frequency point is 2140MHz, ownership band1, bandwidth is 20MHz), CC3 is (if descending center frequency point is 879MHz, ownership band5, bandwidth is 20MHz), UE has two transceivers (to be expressed as R × T × 1, with R × T × 2), support that bandwidth is 20MHz respectively, 20MHz, shown in Fig. 7 (a).Carrier aggregation subdistrict 1 home base station 1.
Suppose due to upper-layer service demand, UE initiates RRC connection establishment request (mainly comprising random access procedure) on CC1, after random access procedure completes, UE enters connected state, CC1 is PCC, and the Serving cell on CC1 is Pcell, and the center frequency point of first transceiver work is 2120MHz, bandwidth is 20MHz, as shown in Fig. 7 (b).
Then, base station 1 asks UE to report transceiver ability information, and UE reports the band list of support, as comprised band1/2/5.
Suppose that, because service traffics increase, base station 1 needs to configure component carrier.According to the transceiver ability information that UE reports, base station 1 knows that the frequency band that UE supports is band1/2/5.Therefore, base station 1 determines that configuring CC2 to UE carries out carrier aggregation, and bandwidth is 20MHz, sends to UE by the order of RRC reprovision.
After UE receives the order of RRC reprovision, enable the data communication that second transceiver is responsible for CC2 and base station 1, the center frequency point of transceiver work is 2140MHz, and bandwidth is 20MHz, and first transceiver does not need to adjust.After having adjusted, UE carries out data communication, as shown in Fig. 7 (c) by CC1 and CC3 and base station 1.
Suppose because service traffics continue to increase, base station 1 needs to configure component carrier.According to the transceiver ability information that UE reports, base station 1 knows that the frequency band that UE supports is band1/2/5.Therefore, base station 1 can determine that configuring CC3 to UE carries out carrier aggregation, and bandwidth is 20MHz, sends to UE by the order of RRC reprovision; After UE receives the order of RRC reprovision, find the ability exceeding self, respond the failure of RRC reprovision to base station 1, can carry failure cause is override capability scope.Meanwhile, UE ignores this RRC reprovision order, continues to keep the configuration (namely carrying out data communication by CC1 and CC3 and base station 1) before receiving this RRC reprovision order, does not initiate RRC process of reconstruction.
In the present embodiment, the transceiver that override capability scope refers to UE can not support larger bandwidth (in the present embodiment, UE can only support 40MHz); Or, the transceiver of UE can not support that more discrete component carrier is (in the present embodiment, UE can only support 2 discrete component carriers, although CC1 and CC2 is continuous print, but due to the ability of UE, adopt different transceivers to process, therefore can not support that CC3 is polymerized).In the present embodiment, base station 1 receives after RRC reprovision unsuccessfully orders, and owing to not having other component carriers available, does not therefore do further operation.
Suppose, subsequent base stations 1 determines to be switched to by UE in carrier aggregation subdistrict 2 (home base station 2), sends handover request message, carry the transceiver ability information that UE reports to base station 2; Base station 2 responds handover request ack message to base station 1, includes to the component carrier information of UE configuration; The component carrier message notice UE that base station 1 will be configured to UE by switching command, after UE receives, if find that the component carrier information of base station 2 configuration exceeds the ability of UE, respond handoff failure can to base station 1, can also carry failure cause is override capability scope.UE ignores this switching command simultaneously, continues to keep the configuration before receiving this switching command, does not initiate RRC process of reconstruction.
In said process, UE also can according to current process process, namely UE receives the order of RRC reprovision, find that the configuration in reprovision order exceeds the limit of power of self, perform RRC process of reconstruction, rebuild in request at RRC, carrying the reason initiating to rebuild is exceed self-ability scope and/or the failure of RRC reprovision, if the base station that RRC rebuilds is the base station of initiating RRC reprovision, so base station is according to this reason, adjusts to the component carrier of UE configuration.
UE receives switching command, find that the configuration in switching command exceeds the limit of power of self, perform RRC process of reconstruction, rebuild in request at RRC, carrying the reason initiating to rebuild is exceed self-ability scope and/or handoff failure, if the base station that RRC rebuilds is the base station of initiating switching command, so, base station, according to this reason, adjusts to the component carrier of UE configuration.
The present embodiment and auxiliary component carrier whether exist activate deactivation status have nothing to do.
Fig. 8 is the schematic diagram of the component carrier adjustment of fifth embodiment of the invention, in Fig. 8, and the blank frequency band representing the free time, the frequency band that lattice shadow representation uses.In the fourth embodiment, suppose that UE to reside in carrier aggregation subdistrict 1 on CC1, carrier aggregation subdistrict 1 supports that three component carriers are polymerized, that CC1 is (if descending center frequency point is 2120MHz respectively, ownership band1, bandwidth is 20MHz), CC2 is (if descending center frequency point is 2140MHz, ownership band1, bandwidth is 20MHz), CC3 is (if descending center frequency point is 879MHz, ownership band5, bandwidth is 20MHz), CC4 is (if descending center frequency point is 2160MHz, ownership band1, bandwidth is 20MHz), UE has a transceiver (being expressed as R × T × 1), support bandwidth is 40MHz, shown in Fig. 8 (a).
Suppose due to upper-layer service demand, UE initiates RRC connection establishment request (mainly comprising random access procedure) on CC1, after random access procedure completes, UE enters connected state, CC1 is PCC, and the Serving cell on CC1 is Pcell, and the center frequency point of first transceiver work is 2120MHz, bandwidth is 20MHz, as shown in Fig. 8 (b).
Then, base station requests UE reports transceiver ability information, and the transceiver ability information that UE reports comprises the band list of support, as comprised band1/2/5.
Suppose that, because service traffics increase, base station needs to configure component carrier.According to the ability information that UE reports, base station knows that the frequency band that UE supports is band1/2/5.Therefore base station determines that configuring CC3 to UE carries out carrier aggregation, sends to UE by the order of RRC reprovision.
After UE receives the order of RRC reprovision, find the ability exceeding self, respond the failure of RRC reprovision to base station, can carry failure cause is override capability scope.Meanwhile, UE ignores this RRC reprovision order, continues to keep the configuration (namely carrying out data communication by CC1 and base station) before receiving this reprovision order, does not initiate RRC process of reconstruction.
In the present embodiment, the transceiver that override capability scope refers to UE can not support larger bandwidth (in the present embodiment, UE can support 40MHz, has used 20MHz for current, and the override capability scope therefore in the present embodiment is not this reason); Or the transceiver of UE can not support more discrete component carrier (in the present embodiment, UE can not support discrete component carrier, therefore can not support that CC3 is polymerized).
In the present embodiment, base station receives after RRC reprovision unsuccessfully orders, and owing to also having CC2 available, therefore, base station can determine that configuring CC2 to UE carries out carrier aggregation, and again sends to UE by the order of RRC reprovision; After UE receives the order of RRC reprovision, the center frequency point according to the frequency adjustment transceiver work of CC1 and CC2 is 2130MHz, and bandwidth is 40MHz, and adjustment process business is in interrupt status.After having adjusted, UE carries out data communication, as shown in Fig. 8 (c) by CC1 and CC2 and base station.
Suppose because service traffics continue to increase, base station needs to configure component carrier.According to the transceiver ability information that UE reports, base station knows that the frequency band that UE supports is band1/2/5.Therefore, base station can determine that configuring CC4 to UE carries out carrier aggregation, sends to UE by the order of RRC reprovision; After UE receives the order of RRC reprovision, find the ability exceeding self, respond the failure of RRC reprovision to base station, can carry failure cause is override capability scope.Meanwhile, UE ignores this RRC reprovision order, continues to keep the configuration (namely carrying out data communication by CC1 and CC2 and base station) before receiving this reprovision order, does not initiate RRC process of reconstruction.
Override capability scope refers to, the transceiver of UE can not support that (in the present embodiment, UE can support 40MHz, has currently used 40MHz for larger bandwidth, therefore, the transceiver of what override capability scope now referred to is exactly UE can not support this reason of larger bandwidth); Or the transceiver of UE can not support more discrete component carrier (in the present embodiment, UE can only support continuous print component carrier, and CC4 and CC2 is continuous print, is not therefore this reason) here.In the present embodiment, base station receives after RRC reprovision unsuccessfully orders, and owing to not having other component carriers available, does not therefore do further operation.
The present embodiment and auxiliary component carrier whether exist activate deactivation status have nothing to do.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. in carrier aggregation, the adjustment of component carrier is realized to a method for control, it is characterized in that, comprising: according to the ability of user equipment (UE), the adjustment of component carrier is controlled;
The described adjustment to component carrier is carried out control and is comprised:
The frequency band that base station is supported according to UE, configures component carrier by the order of radio resource control RRC reprovision to UE;
When being configured with the component carrier of the limit of power exceeding UE in base station, UE returns configuration failure to base station and UE does not perform RRC process of reconstruction, ignores the order of RRC reprovision, continues the configuration before adopting the order of RRC reprovision.
2. method according to claim 1, is characterized in that, when the base station receiving configuration failure determines described UE to be switched in object base station, the method also comprises:
The described base station receiving configuration failure sends handover request message to object base station, carries the transceiver ability information that UE reports; Handover request ack message is responded to the base station receiving configuration failure in described object base station, is wherein carried to the component carrier information of UE configuration;
The component carrier message notice UE that the described base station receiving configuration failure will be configured to UE by switching command; After described UE receives, if find that the component carrier information of object base station configuration exceeds the ability of self, respond handoff failure to the described base station receiving configuration failure; UE ignores this switching command simultaneously, continues to keep the configuration before receiving this switching command, does not initiate RRC process of reconstruction.
3. method according to claim 1 and 2, is characterized in that, while described UE returns configuration failure or handoff failure to base station, notice failure cause is override capability scope.
4. method according to claim 3, is characterized in that, the method also comprises: described UE ignores described switching command, continues the configuration before adopting switching command.
5. the method according to any one of claim 1,2,4, is characterized in that, the described adjustment to component carrier comprises: component carrier increases or component carrier is deleted or component carrier is replaced or component carrier activates deexcitation.
6. method according to claim 3, is characterized in that, the described adjustment to component carrier comprises: component carrier increases or component carrier is deleted or component carrier is replaced or component carrier activates deexcitation.
7. in carrier aggregation, the adjustment of component carrier is realized to a device for control, it is characterized in that, at least comprise control module, for the ability according to user equipment (UE), the adjustment of component carrier is controlled;
Described device is arranged in user equipment (UE); This device also comprises the second receiver module, wherein,
Second receiver module, for receive from base station, band configurations that base station is supported according to UE, the RRC reconfiguration message that configures component carrier to UE;
Control module, specifically for when determining that base station is configured with the component carrier of the limit of power exceeding UE self, returns configuration failure to base station, notifies that failure cause is override capability scope simultaneously; And do not perform RRC process of reconstruction, ignore the order of RRC reprovision, continue the configuration before adopting the order of RRC reprovision.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010236759.1A CN102340873B (en) | 2010-07-22 | 2010-07-22 | In carrier aggregation, the adjustment of component carrier is realized to method and the device of control |
| PCT/CN2011/076075 WO2012010034A1 (en) | 2010-07-22 | 2011-06-21 | Method and device for realizing control on component carrier adjustment in carrier aggregation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010236759.1A CN102340873B (en) | 2010-07-22 | 2010-07-22 | In carrier aggregation, the adjustment of component carrier is realized to method and the device of control |
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| Publication Number | Publication Date |
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| CN102340873A CN102340873A (en) | 2012-02-01 |
| CN102340873B true CN102340873B (en) | 2016-03-30 |
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| CN201010236759.1A Expired - Fee Related CN102340873B (en) | 2010-07-22 | 2010-07-22 | In carrier aggregation, the adjustment of component carrier is realized to method and the device of control |
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| WO (1) | WO2012010034A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103580836B (en) * | 2012-08-03 | 2019-01-04 | 中兴通讯股份有限公司 | UE type reports, resource allocation methods and device, UE, base station |
| CN103634910B (en) * | 2012-08-29 | 2019-03-01 | 中兴通讯股份有限公司 | Delete the method and device of component carrier |
| CN103973358B (en) * | 2013-01-24 | 2019-02-15 | 中兴通讯股份有限公司 | The data transmission method and equipment and system of a kind of millimetre-wave attenuator combining channel |
| CN103973365B (en) * | 2013-01-29 | 2018-12-28 | 中兴通讯股份有限公司 | A kind of switching method of visible light communication equipment and terminal device in access point |
| WO2014205742A1 (en) * | 2013-06-27 | 2014-12-31 | 华为技术有限公司 | Carrier switching method, base station and user equipment |
| US9848425B2 (en) * | 2014-10-28 | 2017-12-19 | Intel Corporation | Communication device and method for controlling transceiver chains of a communication device |
| CN105790907A (en) * | 2014-12-23 | 2016-07-20 | 中兴通讯股份有限公司 | Method and device for modifying frequency band, terminal and base station |
| CN110719588B (en) * | 2015-05-15 | 2021-02-12 | 华为技术有限公司 | Communication device and method |
| CN106922025B (en) * | 2015-12-28 | 2019-07-02 | 普天信息技术有限公司 | A kind of carrier management method and device |
| CN117560653A (en) * | 2022-08-04 | 2024-02-13 | 维沃移动通信有限公司 | UE capability control method, device, terminal and network side equipment |
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| CN101164351B (en) * | 2006-03-03 | 2011-04-20 | 华为技术有限公司 | User equipment access method in mobile communication system |
| CN101340622B (en) * | 2007-07-06 | 2012-01-11 | 中兴通讯股份有限公司 | Distribution method of multi-carrier reinforced uplink power resource |
| CN101801096B (en) * | 2009-02-10 | 2013-06-05 | 电信科学技术研究院 | Method, system and equipment of random access |
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| CN102340873A (en) | 2012-02-01 |
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