CN101778393A - Carrier polymerizing system and frequency spectrum fragment processing method and equipment thereof - Google Patents
Carrier polymerizing system and frequency spectrum fragment processing method and equipment thereof Download PDFInfo
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- CN101778393A CN101778393A CN200910076613A CN200910076613A CN101778393A CN 101778393 A CN101778393 A CN 101778393A CN 200910076613 A CN200910076613 A CN 200910076613A CN 200910076613 A CN200910076613 A CN 200910076613A CN 101778393 A CN101778393 A CN 101778393A
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- 238000001228 spectrum Methods 0.000 title claims abstract description 45
- 239000012634 fragment Substances 0.000 title claims abstract description 22
- 238000003672 processing method Methods 0.000 title claims abstract description 10
- 230000000379 polymerizing effect Effects 0.000 title abstract 5
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000002776 aggregation Effects 0.000 claims description 47
- 238000004220 aggregation Methods 0.000 claims description 47
- 238000006116 polymerization reaction Methods 0.000 claims description 30
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000011664 signaling Effects 0.000 claims description 12
- 239000000969 carrier Substances 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 11
- 230000004931 aggregating effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
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- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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Abstract
The invention discloses a frequency spectrum fragment processing method and equipment of a carrier polymerizing system. The method comprises the following steps: in an FDD polymerizing system, respectively polymerizing independent carriers with coupled up and down carriers in a manner of TDM, wherein the independent carriers are non up and down coupled carriers; when a user enters a cell for the first time, notifying the user the configuration information of the up and down carriers in the FDD polymerizing system by system information in broadcast messages, wherein the configuration information comprises the information of the independent carriers. By using the invention, relatively independent frequency spectrum fragments can be effectively utilized to be flexibly applied to asymmetrical services.
Description
Technical field
The present invention relates to the communication technology, be specifically related to a kind of carrier aggregation system and frequency spectrum fragment processing method thereof, equipment.
Background technology
At present, along with the development of mobile communication technology, power system capacity is exponential increase, therefore needs the high speed business under the high mobility to satisfy the user's request that continues to increase, multimedia service increases more rapid with respect to speech business, and progressively becomes main business demand.The business and the higher peak rate of application need of enhancing property.In order to improve the average throughput of peak rate and each sub-district, need wideer bandwidth.
In order to support (Long Term Evolution than LTE, Long Term Evolution) the wideer system bandwidth of system, such as 100MHz, the LTE-Advanced system gets up to use with the resource polymerization of a plurality of LTE carrier waves (claiming member carrier again), in present stage, mainly considered following two kinds of polymerization methodses:
(1) a plurality of continuous LTE carrier waves is carried out polymerization, for the LTE-Advanced system provides bigger transmission bandwidth;
(2) a plurality of discontinuous LTE carrier waves are carried out polymerization, for the LTE-Advanced system provides bigger transmission bandwidth.
Fig. 1 has provided the schematic diagram of discontinuous carrier aggregation.
For the common recognition of carrier aggregation system design is that design on each carrier wave keeps consistent as far as possible with LTE R8, thus the terminal of assurance LTE R8 can be on each member carrier operate as normal.
For the spectrum aggregating of typical TDD (Time Division Duplexing, time division multiplexing), the number of the up-downgoing member carrier of system and the bandwidth of each member carrier equate.For each user, up-downgoing allows the asymmetric different traffic carrying capacity of up-downgoing that satisfies.As shown in Figure 2, carry out in a plurality of carrier waves of polymerization, the part subframe in each carrier wave will be fixed for transmitting downlink business, and all the other subframes will be fixed for transmitting uplink service, and UE is known ascending-descending subframes configuring condition concrete in the carrier wave by read system information.
For the spectrum aggregating of typical FDD (Frequency Division Duplexing, frequency division multiplexing), system and the member's up-downgoing member carrier all can asymmetricly satisfy the different traffic carrying capacity of up-downgoing.As shown in Figure 3, carry out in a plurality of carrier waves of polymerization, the part carrier wave will be fixed for transmitting downlink business, and all the other carrier waves will be fixed for transmitting uplink service, and UE is known the concrete distribution condition of carrier wave by read system information.
In the spectrum aggregating mode of typical FDD, frequency spectrum fragment temporarily can't reasonably be disposed utilization.Have the symmetrical spectrum of a pair of 20MHz such as a FDD operator, the frequency range of one section 10MHz is additionally arranged in addition; If according to the spectrum aggregating of traditional LTE-Advanced system to FDD, this frequency range or polymerization can only be given descendingly, or polymerization gives uply, and the utilization of frequency spectrum fragment is lacked flexibility and validity.And, because in the different periods, the user is different to the demand of business, adopt the up-downgoing carrier wave in the prior art fixed configurations system, for the assurance system can both satisfy user's needs at day part, then need to dispose the up-downgoing number of carriers respectively according to peak value up, downlink transfer, this will cause the wasting of resources in the system.
Summary of the invention
The embodiment of the invention provides a kind of carrier aggregation system and frequency spectrum fragment processing method thereof, equipment, in the FDD system, effectively utilizes relatively independent frequency spectrum fragment, makes its flexible Application in asymmetric traffic.
For this reason, the embodiment of the invention provides following technical scheme:
The frequency spectrum fragment processing method of a kind of carrier aggregation system that the embodiment of the invention provides comprises:
In the FDD paradigmatic system, with Independent Carrier Wave according to the mode of TDM respectively and the up-downgoing carrier aggregation of polymerization, described Independent Carrier Wave is the carrier wave that non-up-downgoing occurs in pairs;
When the user enters the sub-district for the first time, notify the configuration information of up-downgoing carrier wave in the described FDD paradigmatic system of user by the system information in the broadcast, comprise the information of described Independent Carrier Wave in the described configuration information.
The frequency spectrum fragment treatment facility of a kind of carrier aggregation system that the embodiment of the invention provides comprises:
Allocation units are used for the paradigmatic system at FDD, and with Independent Carrier Wave according to the mode of TDM respectively and the up-downgoing carrier aggregation of polymerization, described Independent Carrier Wave is the carrier wave that non-up-downgoing occurs in pairs;
The configuration information notification unit is used for when the user enters the sub-district for the first time, notifies the configuration information of up-downgoing carrier wave in the described FDD paradigmatic system of user by the system information in the broadcast, comprises the information of described Independent Carrier Wave in the described configuration information.
A kind of carrier aggregation system that the embodiment of the invention provides, comprise: carrier wave and Independent Carrier Wave that up-downgoing occurs in pairs, part carrier wave in the carrier wave that described up-downgoing occurs in pairs is fixed for transmitting downlink business, all the other carrier waves are fixed for transmitting uplink service, the carrier aggregation that described Independent Carrier Wave occurs with described up-downgoing respectively in pairs according to the mode of TDM.
Embodiment of the invention carrier aggregation system and frequency spectrum fragment processing method thereof, equipment, by with Independent Carrier Wave according to the mode of TDM (time division multiplexing) respectively with paired up-downgoing carrier aggregation, described Independent Carrier Wave is the carrier wave that non-up-downgoing occurs in pairs, and when the user enters the sub-district for the first time, notify the configuration information of up-downgoing carrier wave in the described FDD paradigmatic system of user by the system information in the broadcast, comprise the information of described Independent Carrier Wave in the described configuration information.Thereby can be in the FDD paradigmatic system, except using asymmetric up-downgoing frequency spectrum to satisfy the asymmetric traffic, can also effectively utilize this part frequency spectrum to the distribution that relatively independent frequency spectrum fragment carries out TDM, make it on time domain, be applied to asymmetric traffic neatly, improved the utilance of FDD paradigmatic system frequency spectrum resource.
Description of drawings
Fig. 1 is the schematic diagram of discontinuous carrier aggregation in the prior art;
Fig. 2 is the schematic diagram of existing typical TDD spectrum aggregating;
Fig. 3 is the schematic diagram of existing typical FDD spectrum aggregating;
Fig. 4 is a kind of carrier aggregation mode schematic diagram in the carrier aggregation system of the embodiment of the invention;
Fig. 5 is the another kind of carrier aggregation mode schematic diagram in the carrier aggregation system of the embodiment of the invention;
Fig. 6 is the flow chart of the frequency spectrum fragment processing method of embodiment of the invention carrier aggregation system;
Fig. 7, Fig. 8, Fig. 9 are the schematic diagrames of the protection frequency band determined in the method for the embodiment of the invention;
Figure 10 is the structural representation of the frequency spectrum fragment treatment facility of embodiment of the invention carrier aggregation system.
Embodiment
In order to make those skilled in the art person understand the scheme of the embodiment of the invention better, the embodiment of the invention is described in further detail below in conjunction with drawings and embodiments.
The carrier aggregation system of the embodiment of the invention, comprise: carrier wave and Independent Carrier Wave that up-downgoing occurs in pairs, part carrier wave in the carrier wave that described up-downgoing occurs in pairs is fixed for transmitting downlink business, all the other carrier waves are fixed for transmitting uplink service, the carrier aggregation that described Independent Carrier Wave occurs with described up-downgoing respectively in pairs according to the mode of TDM.
FDD paradigmatic system with respect to the spectrum aggregating mode of the typical FDD of prior art can be referred to as the carrier aggregation system of the embodiment of the invention atypia FDD paradigmatic system.
As shown in Figure 4, be a kind of carrier aggregation mode schematic diagram in the carrier aggregation system of the embodiment of the invention.
In the figure, former polymerization carrier wave is continuous, and wherein, relatively independent carrier wave (middle scored one section of figure) frequency range is according to different service needed, according to the mode of TDM respectively and the up-downgoing carrier aggregation of polymerization, to satisfy the possibility that operator provides various asymmetric traffics.
As shown in Figure 5, be another kind of carrier aggregation mode schematic diagram in the carrier aggregation system of the embodiment of the invention.
In the figure, former polymerization carrier wave is discontinuous, and wherein, relatively independent carrier wave (middle scored one section of figure) frequency range is according to different service needed, according to the mode of TDM respectively and the up-downgoing carrier aggregation of polymerization, to satisfy the possibility that operator provides various asymmetric traffics.
As shown in Figure 6, be the flow chart of the frequency spectrum fragment processing method of embodiment of the invention carrier aggregation system, comprising:
Need to prove, in the FDD paradigmatic system, described Independent Carrier Wave is comparatively speaking, be meant the carrier wave that occurs in pairs for the non-up-downgoing of operator, for this carrier wave, can be according to different business demands, according to the mode of TDM respectively and the up-downgoing carrier aggregation of polymerization with its frequency range, that is to say, determine that according to business demand described Independent Carrier Wave at the configuring conditions of different periods, promptly is configured to up or descending use.If desired, also will according to described Independent Carrier Wave and adjacent carrier on frequency domain the interval and the configuration information of adjacent carrier determine the protection frequency band, the configuration information of described adjacent carrier comprises the duplex mode and the uplink-downlink configuration of adjacent carrier.
Can be according to following principle when determining the protection frequency band:
If A. described Independent Carrier Wave and the interval of adjacent carrier on frequency domain are more than or equal to the bandwidth of required protection frequency band, perhaps described Independent Carrier Wave and the interval of adjacent carrier on frequency domain are the TDD mode less than the bandwidth and the described adjacent carrier of required protection frequency band, then do not need to divide the protection frequency band in the both sides of described Independent Carrier Wave;
If B. described Independent Carrier Wave and the interval of adjacent carrier on frequency domain be less than the bandwidth of required protection frequency band, and described adjacent carrier is the FDD mode, then determines the protection frequency band according to the uplink-downlink configuration of adjacent carrier, and is specific as follows:
B1), then do not need to divide the protection frequency band in a side of the Independent Carrier Wave adjacent with described adjacent carrier if the uplink-downlink configuration of described Independent Carrier Wave is identical with the uplink-downlink configuration of adjacent carrier;
B2) if the uplink-downlink configuration of described Independent Carrier Wave is different with the uplink-downlink configuration of adjacent carrier, then the side at the Independent Carrier Wave adjacent with described adjacent carrier marks off the protection frequency band.
As Fig. 7, Fig. 8, shown in Figure 9, be in the method for the embodiment of the invention at above-mentioned b2) schematic diagram of several protection frequency bands of determining under the situation.
In Fig. 7, the adjacent carrier of Independent Carrier Wave both sides is configured to uplink and downlink respectively.Be configured to when descending at Independent Carrier Wave, one side of adjacent Independent Carrier Wave does not need to divide the protection frequency band with being configured to descending adjacent carrier, and need mark off the protection frequency band with a side of the adjacent Independent Carrier Wave that is configured to up adjacent carrier.Vice versa.
In Fig. 8, the adjacent carrier of Independent Carrier Wave both sides all is configured to up.Be configured to then need mark off the protection frequency band respectively when descending at Independent Carrier Wave in the both sides of this Independent Carrier Wave; Be configured to then need not mark off the protection frequency band respectively when up at Independent Carrier Wave in the both sides of this Independent Carrier Wave.
In Fig. 9, the adjacent carrier of Independent Carrier Wave both sides all is configured to descending.Be configured to then need mark off the protection frequency band respectively when up at Independent Carrier Wave in the both sides of this Independent Carrier Wave; Be configured to then need not mark off the protection frequency band respectively when descending at Independent Carrier Wave in the both sides of this Independent Carrier Wave.
As seen; in embodiments of the present invention; not only can with Independent Carrier Wave according to the mode of TDM respectively with paired up-downgoing carrier aggregation; but also can be according to Independent Carrier Wave and adjacent carrier the interval on frequency domain and the configuring condition of adjacent carrier; divide the protection frequency band neatly, make full use of frequency spectrum resource.
Above-mentioned which kind of polymerization methods no matter, the Independent Carrier Wave resource of non-protection frequency band all can be distributed transmission up-downgoing business according to the time period, and and the carrier aggregation of polymerization use.
When the configuration information by up-downgoing carrier wave in the broadcast announcement user FDD paradigmatic system, dual mode can be arranged:
(1) in system information, comprise up-link carrier and descending carrier in the current area, wherein, described Independent Carrier Wave can be used as wherein up-link carrier and also can be used as wherein descending carrier, and promptly Tong Zhi up-downgoing carrier wave can be not overlapping.
(2) in system information, comprise up-link carrier and descending carrier in the current area, wherein, described Independent Carrier Wave is notified as up-link carrier and descending carrier simultaneously, and promptly the up-downgoing carrier wave of notice can be overlapping, and lap is described Independent Carrier Wave.
Because in the different periods, the user is different to the demand of business, and is higher to the uplink service demand in the time of such as some, some the time higher to the downlink business demand.
Therefore, the embodiment of the invention can both satisfy user's needs for further assurance system at day part, can dynamically adjust the transmission direction of Independent Carrier Wave according to the concrete condition of business to be passed, with the idling-resource in the reduction system, improves the availability of frequency spectrum.
Particularly, in the time need switching, can notify the described user operating position of described Independent Carrier Wave in the following manner to the transmission direction of Independent Carrier Wave:
(1) broadcast announcement: before the transmission direction on the carrier wave was switched, system notified the user that the transmission means of Independent Carrier Wave is switched by broadcast.Such as, in existing PBCH (Physical Broadcast Channel), add extra information command, perhaps in SIB (system information block), add extra information command, notice is carried out the up-downgoing transmission to described Independent Carrier Wave and is switched.
(2) high-level signaling notice: utilize higher layer message to notify the user that described Independent Carrier Wave is carried out the up-downgoing transmission and switch such as RRC (Radio Resource control) signaling.
(3) descending control signaling: dynamically use descending control signaling to notify the operating position of the described Independent Carrier Wave of user, promptly this Independent Carrier Wave is to use in the descending carrier polymerization or use in the up-link carrier polymerization.
Need to prove that it can be semi-static that the transmission direction of Independent Carrier Wave is switched, such as, set fixing switching time; Also can be dynamic, promptly need only service needed to be passed, promptly switch at any time.
As seen, the method of the embodiment of the invention, by with Independent Carrier Wave according to the mode of TDM respectively with paired up-downgoing carrier aggregation, described Independent Carrier Wave is the carrier wave that non-up-downgoing occurs in pairs, and when the user enters the sub-district for the first time, notify the configuration information of up-downgoing carrier wave in the described FDD paradigmatic system of user by the system information in the broadcast, comprise the information of described Independent Carrier Wave in the described configuration information.Thereby can be in the FDD paradigmatic system, except using asymmetric up-downgoing frequency spectrum to satisfy the asymmetric traffic, can also effectively utilize this part frequency spectrum to the distribution that relatively independent frequency spectrum fragment carries out TDM, make it on time domain, be applied to asymmetric traffic neatly, reduced in the system because the asymmetric wasting of resources problem that causes of professional timesharing, promptly according to the concrete condition of business to be passed, the dynamically transmission direction of adjustment member carrier wave, thereby the idling-resource in the reduction system has improved the system spectrum utilance.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, described storage medium, as: ROM/RAM, magnetic disc, CD etc.
The embodiment of the invention also provides a kind of frequency spectrum fragment treatment facility of carrier aggregation system, as shown in figure 10, is the theory diagram of this equipment.
This equipment comprises: allocation units 701 and configuration information notification unit 702.Wherein, allocation units 701 are used for the paradigmatic system at FDD, with Independent Carrier Wave according to the mode of TDM respectively with paired up-downgoing carrier aggregation, described Independent Carrier Wave is the carrier wave that non-up-downgoing occurs in pairs; Configuration information notification unit 702 is used for when the user enters the sub-district for the first time, notifies the configuration information of up-downgoing carrier wave in the described FDD paradigmatic system of user by the system information in the broadcast, comprises the information of described Independent Carrier Wave in the described configuration information.
Preferably, allocation units 701 comprise polymerization subelement 711, also can further comprise protection frequency band division subelement 712.Wherein, polymerization subelement 711 is used for determining in real time that according to business demand described Independent Carrier Wave uses or uses in the descending carrier polymerization in the up-link carrier polymerization; Protection frequency band division subelement 712 is used for according to the interval on frequency domain and the definite protection of the configuration information frequency band of adjacent carrier according to described Independent Carrier Wave and adjacent carrier.Particularly; protection frequency band division subelement 712 at described Independent Carrier Wave and adjacent carrier the interval on frequency domain less than the bandwidth of required protection frequency band; and described adjacent carrier is the FDD mode; and the uplink-downlink configuration of described Independent Carrier Wave and the uplink-downlink configuration of adjacent carrier are not simultaneously, mark off the protection frequency band in a side of the Independent Carrier Wave adjacent with described adjacent carrier.
Certainly, in the equipment of the embodiment of the invention, described allocation units 701 are not limited to above-mentioned this structure, in actual applications, the frame mode that other can be arranged as required, if can with described Independent Carrier Wave according to the mode of TDM respectively with paired up-downgoing carrier aggregation.
In the equipment of this embodiment, also can further comprise: handover information notification unit (not shown), this handover information notification unit can be same functional units with described configuration information notification unit 702, be used for when needs carry out the frequency spectrum switching, notifying the operating position of the described Independent Carrier Wave of user by broadcast mode.This handover information notification unit also can be a functional unit different with described configuration information notification unit 702, is used for carrying out frequency spectrum when switching at needs, notifies the operating position of the described Independent Carrier Wave of user by high-level signaling or descending control signaling.Detailed process can be with reference to the description in the embodiment of the invention of front.
Utilize the frequency spectrum fragment treatment facility of embodiment of the invention carrier aggregation system, can with Independent Carrier Wave in the FDD paradigmatic system according to the mode of TDM respectively with paired up-downgoing carrier aggregation, and when the user enters the sub-district for the first time, notify the configuration information of up-downgoing carrier wave in the described FDD paradigmatic system of user by the system information in the broadcast.Thereby can be in the FDD paradigmatic system, except using asymmetric up-downgoing frequency spectrum to satisfy the asymmetric traffic, can also effectively utilize this part frequency spectrum to the distribution that relatively independent frequency spectrum fragment carries out TDM, make it on time domain, be applied to asymmetric traffic neatly, reduced in the system because the asymmetric wasting of resources problem that causes of professional timesharing, promptly according to the concrete condition of business to be passed, the dynamically transmission direction of adjustment member carrier wave, thereby the idling-resource in the reduction system has improved the system spectrum utilance.
More than the embodiment of the invention is described in detail, used embodiment herein the present invention set forth, the explanation of above embodiment just is used for help understanding method and apparatus of the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. the frequency spectrum fragment processing method of a carrier aggregation system is characterized in that, comprising:
In the FDD paradigmatic system, with Independent Carrier Wave according to the mode of TDM respectively and the up-downgoing carrier aggregation of polymerization, described Independent Carrier Wave is the carrier wave that non-up-downgoing occurs in pairs;
When the user enters the sub-district for the first time, notify the configuration information of up-downgoing carrier wave in the described FDD paradigmatic system of user by the system information in the broadcast, comprise the information of described Independent Carrier Wave in the described configuration information.
2. method according to claim 1 is characterized in that, described the mode of Independent Carrier Wave according to TDM is comprised with paired up-downgoing carrier aggregation respectively:
Determine that according to business demand described Independent Carrier Wave uses or uses in the descending carrier polymerization in the up-link carrier polymerization;
The interval on frequency domain and the definite protection of the configuration information frequency band of adjacent carrier according to described Independent Carrier Wave and adjacent carrier.
3. method according to claim 2 is characterized in that, the configuration information of described adjacent carrier comprises the duplex mode and the uplink-downlink configuration of adjacent carrier; Described according to Independent Carrier Wave and adjacent carrier on frequency domain the interval and the configuration information of adjacent carrier determine that the protection frequency band comprises:
If described Independent Carrier Wave and the adjacent carrier interval on frequency domain is more than or equal to the bandwidth of required protection frequency band, perhaps described Independent Carrier Wave and the interval of adjacent carrier on frequency domain are the TDD mode less than the bandwidth and the described adjacent carrier of required protection frequency band, then do not need to divide the protection frequency band in the both sides of described Independent Carrier Wave;
If described Independent Carrier Wave and the adjacent carrier interval on frequency domain is less than the bandwidth of required protection frequency band, and described adjacent carrier is the FDD mode, then determines the protection frequency band according to the uplink-downlink configuration of adjacent carrier.
4. method according to claim 3 is characterized in that, described uplink-downlink configuration according to adjacent carrier determines that the protection frequency band comprises:
If the uplink-downlink configuration of described Independent Carrier Wave is identical with the uplink-downlink configuration of adjacent carrier, then do not need to divide the protection frequency band in a side of the Independent Carrier Wave adjacent with described adjacent carrier;
If the uplink-downlink configuration of described Independent Carrier Wave is different with the uplink-downlink configuration of adjacent carrier, then the side at the Independent Carrier Wave adjacent with described adjacent carrier marks off the protection frequency band.
5. method according to claim 2 is characterized in that, described method also comprises:
Carry out frequency spectrum when switching at needs, notify transmission direction in the described Independent Carrier Wave of user by broadcast signaling or high-level signaling or descending control signaling.
6. the frequency spectrum fragment treatment facility of a carrier aggregation system is characterized in that, comprising:
Allocation units are used for the paradigmatic system at FDD, and with Independent Carrier Wave according to the mode of TDM respectively and the up-downgoing carrier aggregation of polymerization, described Independent Carrier Wave is the carrier wave that non-up-downgoing occurs in pairs;
The configuration information notification unit is used for when the user enters the sub-district for the first time, notifies the configuration information of up-downgoing carrier wave in the described FDD paradigmatic system of user by the system information in the broadcast, comprises the information of described Independent Carrier Wave in the described configuration information.
7. equipment according to claim 6 is characterized in that, described allocation units comprise:
The polymerization subelement is used for determining in real time that according to business demand described Independent Carrier Wave uses or uses in the descending carrier polymerization in the up-link carrier polymerization;
Protection frequency band division subelement is used for according to the interval on frequency domain and the definite protection of the configuration information frequency band of adjacent carrier according to described Independent Carrier Wave and adjacent carrier.
8. equipment according to claim 7 is characterized in that, the configuration information of described adjacent carrier comprises the duplex mode and the uplink-downlink configuration of adjacent carrier;
Described protection frequency band division subelement at described Independent Carrier Wave and adjacent carrier the interval on frequency domain less than the bandwidth of required protection frequency band; and described adjacent carrier is the FDD mode; and the uplink-downlink configuration of described Independent Carrier Wave and the uplink-downlink configuration of adjacent carrier are not simultaneously, mark off the protection frequency band in a side of the Independent Carrier Wave adjacent with described adjacent carrier.
When between described Independent Carrier Wave and adjacent carrier, not having enough protection frequency bands, mark off the protection frequency band respectively in the both sides of described Independent Carrier Wave; At described adjacent carrier is the carrier wave of FDD paradigmatic system, divides described protection frequency band according to the transmission situation of described adjacent carrier.
9. equipment according to claim 7 is characterized in that, also comprises:
The handover information notification unit is used for carrying out frequency spectrum when switching at needs, notifies transmission direction in the described Independent Carrier Wave of user by broadcast signaling or high-level signaling or descending control signaling.
10. carrier aggregation system, it is characterized in that, comprise: carrier wave and Independent Carrier Wave that up-downgoing occurs in pairs, part carrier wave in the carrier wave that described up-downgoing occurs in pairs is fixed for transmitting downlink business, all the other carrier waves are fixed for transmitting uplink service, the carrier aggregation that described Independent Carrier Wave occurs with described up-downgoing respectively in pairs according to the mode of TDM.
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| JP2005341432A (en) * | 2004-05-28 | 2005-12-08 | Ntt Docomo Inc | Frequency selecting apparatus, mobile communication system and multi-band control method |
| DE602005006292T2 (en) * | 2005-11-10 | 2009-07-23 | Research In Motion Ltd., Waterloo | Method and apparatus for channel allocation for data communication in a radio communication system |
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| CN103404047A (en) * | 2011-02-10 | 2013-11-20 | Lg电子株式会社 | Method and device for scheduling in carrier aggregate system |
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| CN105517124B (en) * | 2015-11-28 | 2018-03-02 | 广东欧珀移动通信有限公司 | A kind of method and device of radio frequency link control |
| WO2020248115A1 (en) * | 2019-06-11 | 2020-12-17 | Zte Corporation | Methods, apparatus and systems for data transmission using bandwidth parts |
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| CN101778393B (en) | 2012-07-25 |
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