CN105450370A - Carrier aggregation uplink transmission device, and control method and apparatus therefor - Google Patents
Carrier aggregation uplink transmission device, and control method and apparatus therefor Download PDFInfo
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- CN105450370A CN105450370A CN201410302031.2A CN201410302031A CN105450370A CN 105450370 A CN105450370 A CN 105450370A CN 201410302031 A CN201410302031 A CN 201410302031A CN 105450370 A CN105450370 A CN 105450370A
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Abstract
The invention discloses a carrier aggregation uplink transmission device, and a control method and apparatus therefor. The device comprises a baseband processor, a transmission apparatus, an antenna switch, and an antenna. The transmission apparatus is connected with the baseband processor, and is also connected with the antenna through the antenna switch. The transmission apparatus comprises transmitters and radio frequency front ends, wherein the number of the transmitter is greater than one and the number of radio frequency front ends is also greater than one. The transmitters are connected with the baseband processor, and are connected with the radio frequency front ends through radio frequency switches. The radio frequency front ends are connected with the antenna through the antenna switch. According to the above scheme of the invention, the carrier aggregation uplink transmission of discrete frequency bands is achieved through the plurality of transmitters and radio frequency front ends, thereby breaking the constraint from the working band and bandwidth of a conventional transmission device, and enabling the carrier aggregation transmission to be easy to implement.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of uplink device of carrier aggregation and control method thereof and device.
Background technology
Senior Long Term Evolution (LTE-Advanced, LTE-A) is the follow-up evolution of Long Term Evolution (LongTermEvolution, LTE) technology.Carrier aggregation, refers to that the frequency band that lte-a system uses is polymerized the frequency bandwidth meeting LTE-A associated specifications formed, as 10MHz, 20MHz even 100MHz by 2 or multiple LTE carrier units.But, lte-a system can not be regarded as the simple technique expansion that LTE system undertaken by multicarrier.
Can be made up of the member carrier of nearby frequency bands by the carrier wave be polymerized in carrier aggregation, also can be made up of the member carrier of discrete frequency bands.When discrete frequency bands is polymerized, because the interval between member carrier is very large, each member carrier also exists larger difference in transmission characteristic, traditional single radio frequency chain sender is difficult to the carrier aggregation realized in discrete frequency bands, therefore, when relating to radio frequency link, need the many factors considered.Such as, for the channel fading difference of each intercarrier, the difference etc. of transmission bandwidth transmitted, therefore, the transmission of carrier aggregation also exists the comparatively complicated problem of implementation procedure.
Summary of the invention
What the embodiment of the present invention solved is the uplink how realizing the carrier aggregation of discrete frequency bands effectively easyly.
For solving the problem, embodiments provide a kind of uplink device of carrier aggregation, described device comprises: baseband processor, transmitting device, duplexer and antenna, described transmitting device is connected with described baseband processor, and described transmitting device is also connected with described antenna by described duplexer;
Described transmitting device comprises more than one sender, more than one radio-frequency front-end, described sender is connected with described baseband processor, and be connected with described radio-frequency front-end by band switch, described radio-frequency front-end is also connected with described antenna by described duplexer.
Alternatively, the quantity of described radio-frequency front-end is equal with the number of frequency bands that LTE-A terminal is supported.
Alternatively, the carrier wave of described carrier aggregation is the carrier wave of discrete frequency bands.
The embodiment of the present invention additionally provides a kind of uplink control device of carrier aggregation, and described device comprises:
First chooses unit, according to target polymerization bandwidth, chooses the carrier wave for carrier aggregation and sender;
Second chooses unit, according to the information of the obtained carrier wave for carrier aggregation, selects corresponding radio-frequency front-end.
Alternatively, described first to choose the bandwidth sum of the carrier wave for multi-carrier polymerizing selected by unit equal with described target polymerization bandwidth.
Alternatively, the described carrier information for multi-carrier polymerizing of acquisition, comprising: for the quantity information of the carrier wave of multi-carrier polymerizing and the bandwidth information of described carrier wave.
Alternatively, described second chooses the quantity of radio-frequency front-end selected by the unit radio-frequency front-end identical with the number of carriers of described carrier aggregation, and the frequency band that selected radio-frequency front-end is supported is greater than the bandwidth of described carrier wave.
Alternatively, the maximum of described sender is identical with the single carrier wave maximum transmission bandwidth preset.
The embodiment of the present invention additionally provides a kind of uplink control method of carrier aggregation, and described method comprises:
According to target polymerization bandwidth, choose the carrier wave for carrier aggregation and sender;
According to the information of the obtained carrier wave for carrier aggregation, select corresponding radio-frequency front-end.
Alternatively, the bandwidth sum of the selected carrier wave for multi-carrier polymerizing is equal with described target polymerization bandwidth.
Alternatively, the described carrier information for multi-carrier polymerizing of acquisition, comprising: for the quantity information of the carrier wave of multi-carrier polymerizing and the bandwidth information of described carrier wave.
Alternatively, according to the information of the obtained carrier wave for carrier aggregation, select corresponding radio-frequency front-end, comprising:
Select the radio-frequency front-end that the quantity of radio-frequency front-end is identical with the number of carriers of described carrier aggregation, and the band that selected radio-frequency front-end is supported is wider than the bandwidth of described carrier wave.
Alternatively, the maximum of described sender is identical with the single carrier wave maximum transmission bandwidth preset.
Compared with prior art, technical scheme of the present invention has following advantage:
1. the up-link carrier aggregation transfer of the present invention by utilizing multiple sender and radio-frequency front-end to realize discrete frequency bands, effectively overcomes working band and the bandwidth restriction of existing transmitting device.
2. the present invention makes full use of the sender technology of existing LTE system, does not need to carry out complicated design to sender, reduces the complexity of transmitting device design, and the transmission that up-link carrier can be made to be polymerized is easy to realize.
Accompanying drawing explanation
Fig. 1 is the structural representation of the uplink device of a kind of carrier aggregation in the embodiment of the present invention;
Fig. 2 is the structural representation of a kind of sender in the embodiment of the present invention;
Fig. 3 is the structural representation of the upstream transmission passage control device of a kind of carrier aggregation in the embodiment of the present invention;
Fig. 4 is the flow chart of the upstream transmission passage control method of a kind of carrier aggregation in the embodiment of the present invention.
Embodiment
For solving the above-mentioned problems in the prior art, the uplink of technical scheme by utilizing multiple sender to realize the carrier aggregation of discrete frequency bands that the embodiment of the present invention adopts, effectively overcome working band and the bandwidth restriction of existing transmitting device, the carrier aggregation of discrete frequency bands can be made to transmit and be easy to realize.
For enabling above-mentioned purpose of the present invention, feature and advantage more become apparent, and are described in detail specific embodiments of the invention below in conjunction with accompanying drawing.
Fig. 1 shows the structural representation of the uplink device of the carrier aggregation in the embodiment of the present invention.The uplink device of carrier aggregation as shown in Figure 1, can comprise:
Baseband processor 11, transmitting device 12, duplexer 13 and antenna 14, transmitting device 12 is connected with baseband processor 11, and transmitting device 12 is also connected with antenna 14 by duplexer 13.
Fig. 2 shows the structural representation of the sender in the embodiment of the present invention.Transmitting device 12 as shown in Figure 2, can comprise: sender 121, radio-frequency front-end 122 and band switch 123.Wherein, sender 121 is connected with baseband processor (not shown), and be connected with radio-frequency front-end 122 by band switch 123, radio-frequency front-end 122 is also connected with antenna (not shown) by duplexer (not shown).
The operation principle of the uplink device of the carrier aggregation in the embodiment of the present invention is as follows:
First, according to the demand of target polymerization bandwidth and the maximum of sender, select the carrier wave for reaching target polymerization bandwidth demand, and the sender 121 of respective numbers.
In concrete enforcement, sender 121 has default maximum, and can work in arbitrary band system band.Such as, in lte-a system, the maximum of sender 121 can be 20MHz.
In concrete enforcement, when target polymerization bandwidth is 100MHz, 5 sender synchronous transmission can be selected to be the carrier wave of 20MHz for 5 bandwidth of carrier aggregation.
For another example, when lte-a system needs the target polymerization bandwidth reached to be 20MHz, and when the carrier wave of any one frequency band all can not provide this bandwidth, so, in order to meet the demand of target polymerization bandwidth, the carrier wave of discrete frequency bands can be polymerized.Due in lte-a system, the maximum of sender 121 is 20MHz, and can work in arbitrary band system band, therefore, now, only needs selection sender 121, just can meet the transmission demand of target polymerization bandwidth.
In concrete enforcement, sender can be selected according to the service condition of the demand of target polymerization bandwidth and present band, reduce the quantity that sender works simultaneously as far as possible, to reduce the power consumption of terminal equipment.
Then, corresponding radio-frequency front-end 122 can be chosen according to the selected quantity of the carrier wave for reaching target polymerization bandwidth demand and the bandwidth of carrier wave.By band switch 123, the radio-frequency front-end 122 selected by unlatching, and the radio-frequency front-end 122 keeping other not choose is closed condition.
In concrete enforcement, radio-frequency front-end 123 only can work on specific frequency band, and therefore, the number of frequency bands that the quantity of radio-frequency front-end 123 can be supported with LTE-A terminal is equal.Such as, the number of frequency bands that LTE-A terminal is supported is generally 3 to 5, and correspondingly, radio-frequency front-end 123 also can be 3 to 5.
By above-mentioned selection, a upstream transmission passage along the carrier aggregation of baseband processor 11, sender 121, band switch 123, radio-frequency front-end 122, duplexer 13 and antenna 14 just can be chosen.By selected upstream transmission passage, after processing accordingly respectively through baseband processor 11, sender 121 and radio-frequency front-end 122 for each carrier wave of carrier aggregation, gone out by antenna transmission.
The embodiment of the present invention additionally provides a kind of mobile terminal, and described mobile terminal comprises the uplink device of above-mentioned carrier aggregation.
Fig. 3 shows the structural representation of the uplink control device of the carrier aggregation in the embodiment of the present invention.The uplink control device 30 of carrier aggregation as shown in Figure 3, can comprise: first chooses unit 31 and second chooses unit 32.Wherein:
First chooses unit 31, according to target polymerization bandwidth, chooses the carrier wave for carrier aggregation and sender.
In concrete enforcement, described first to choose the bandwidth sum of the carrier wave for multi-carrier polymerizing selected by unit 31 equal with described target polymerization bandwidth.Such as, when target polymerization bandwidth is 80MHz, 3 bandwidth can be adopted to be the carrier wave of 20MHz and 2 bandwidth be the carrier wave of 10MHz to be polymerized.
In concrete enforcement, sender has default maximum, and can work in arbitrary band system band.Such as, in lte-a system, the maximum of sender is 20MHz.When the carrier aggregation that use 5 bandwidth are 20MHz reaches target polymerization bandwidth 100MHz, 5 senders can be used to transmit 5 described carrier waves respectively.
For another example, when lte-a system needs the target polymerization bandwidth reached to be 20MHz, and when the carrier wave of any one bandwidth all can not provide this bandwidth, so, in order to meet the demand of target polymerization bandwidth 20MHz, the carrier wave of discrete frequency bands can be polymerized.Due in lte-a system, the maximum that sender is preset is 20MHz, and can work in arbitrary band system band, therefore, now, can select a sender, just can meet the transmission demand of target polymerization bandwidth 20MHz.
In concrete enforcement, sender can be selected according to the service condition of the demand of target polymerization bandwidth and present band, reduce the quantity that sender works simultaneously as far as possible, to reduce the power consumption of terminal equipment.
Second chooses unit 32, according to the information of the obtained carrier wave for carrier aggregation, selects corresponding radio-frequency front-end.
In concrete enforcement, the described carrier information for multi-carrier polymerizing of acquisition, comprises the bandwidth information of quantity information for the carrier wave of multi-carrier polymerizing and described carrier wave.
In concrete enforcement, described second chooses the quantity of radio-frequency front-end selected by unit 22 radio-frequency front-end identical with the number of carriers of described carrier aggregation, and the bandwidth that selected radio-frequency front-end is supported is greater than or equal to the bandwidth of described carrier wave.
Fig. 4 shows the flow chart of the uplink control method of the carrier aggregation in the embodiment of the present invention.The uplink control method of carrier aggregation as shown in Figure 4, can comprise:
Step S41: according to target polymerization bandwidth, chooses the carrier wave for carrier aggregation and sender.
In concrete enforcement, the bandwidth sum of the selected carrier wave for multi-carrier polymerizing is equal with described target polymerization bandwidth.Such as, in lte-a system, when target polymerization bandwidth is 100MHz, bandwidth can be selected to be that 5 carrier waves of 20MHz are polymerized.
In concrete enforcement, sender has default maximum, and the maximum of described sender is identical with the single carrier wave maximum transmission bandwidth preset.Such as, in lte-a system, the maximum that sender is preset is 20MHz, and can work on arbitrary frequency band.When target polymerization bandwidth is 100MHz, 5 senders can be selected to carry out the carrier wave of synchronous transmission for carrier aggregation.
Step S42: according to the information of the obtained carrier wave for carrier aggregation, select corresponding radio-frequency front-end.
In concrete enforcement, the described carrier information for multi-carrier polymerizing obtained comprises: for the quantity information of the carrier wave of multi-carrier polymerizing and the bandwidth information of described carrier wave.
In concrete enforcement, according to the information of the obtained carrier wave for carrier aggregation, select corresponding radio-frequency front-end, comprise: select the radio-frequency front-end that the quantity of radio-frequency front-end is identical with the number of carriers of described carrier aggregation, and the bandwidth that selected radio-frequency front-end is supported is greater than or equal to the bandwidth of described carrier wave.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is that the hardware that can carry out instruction relevant by program has come, this program can be stored in computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
Done detailed introduction to the method and system of the embodiment of the present invention above, the present invention is not limited to this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (12)
1. the uplink device of a carrier aggregation, it is characterized in that, comprise: baseband processor, transmitting device, duplexer and antenna, described transmitting device is connected with described baseband processor, and described transmitting device is also connected with described antenna by described duplexer;
Described transmitting device comprises more than one sender, more than one radio-frequency front-end, described sender is connected with described baseband processor, and be connected with described radio-frequency front-end by band switch, described radio-frequency front-end is also connected with described antenna by described duplexer.
2. the uplink device of carrier aggregation according to claim 1, is characterized in that, the quantity of described radio-frequency front-end is equal with the number of frequency bands that LTE-A terminal is supported.
3. the uplink device of carrier aggregation according to claim 1, is characterized in that, the carrier wave of described carrier aggregation is the carrier wave of discrete frequency bands.
4. a uplink control device for carrier aggregation, is characterized in that, comprising:
First chooses unit, according to target polymerization bandwidth, chooses the carrier wave for carrier aggregation and sender;
Second chooses unit, according to the information of the obtained carrier wave for carrier aggregation, selects corresponding radio-frequency front-end.
5. the uplink control device of carrier aggregation according to claim 4, is characterized in that, described first to choose the bandwidth sum of the carrier wave for multi-carrier polymerizing selected by unit equal with described target polymerization bandwidth.
6. the uplink control device of carrier aggregation according to claim 4, is characterized in that, the described carrier information for multi-carrier polymerizing of acquisition, comprising: for the quantity information of the carrier wave of multi-carrier polymerizing and the bandwidth information of described carrier wave.
7. the uplink control device of carrier aggregation according to claim 6, it is characterized in that, described second chooses the quantity of radio-frequency front-end selected by the unit radio-frequency front-end identical with the number of carriers of described carrier aggregation, and the bandwidth that selected radio-frequency front-end is supported is greater than or equal to the bandwidth of described carrier wave.
8. the uplink control device of carrier aggregation according to claim 7, is characterized in that, the maximum of described sender is identical with the single carrier wave maximum transmission bandwidth preset.
9. a uplink control method for carrier aggregation, is characterized in that, comprising:
According to target polymerization bandwidth, choose the carrier wave for carrier aggregation and sender;
According to the information of the obtained carrier wave for carrier aggregation, select corresponding radio-frequency front-end.
10. the uplink control method of carrier aggregation according to claim 9, is characterized in that, the bandwidth sum of the selected carrier wave for multi-carrier polymerizing is equal with described target polymerization bandwidth.
The uplink control method of 11. carrier aggregation according to claim 9, is characterized in that, the described carrier information for multi-carrier polymerizing of acquisition, comprising: for the quantity information of the carrier wave of multi-carrier polymerizing and the bandwidth information of described carrier wave.
The uplink control method of 12. carrier aggregation according to claim 9, is characterized in that, according to the information of the obtained carrier wave for carrier aggregation, selects corresponding radio-frequency front-end, comprising:
Select the radio-frequency front-end that the quantity of radio-frequency front-end is identical with the number of carriers of described carrier aggregation, and the band that selected radio-frequency front-end is supported is wider than the bandwidth of described carrier wave.
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| CN201410302031.2A CN105450370B (en) | 2014-06-27 | 2014-06-27 | The uplink device and its control method and device of carrier wave polymerization |
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| CN201410302031.2A CN105450370B (en) | 2014-06-27 | 2014-06-27 | The uplink device and its control method and device of carrier wave polymerization |
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| WO2021147906A1 (en) * | 2020-01-21 | 2021-07-29 | Oppo广东移动通信有限公司 | Customer premises equipment |
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