CN101814980B - Method and device for realizing repeat ACK/NACK transmission - Google Patents
Method and device for realizing repeat ACK/NACK transmission Download PDFInfo
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Abstract
The invention relates to a method and a device for realizing repeat ACK/NACK transmission. The method comprises the following steps of: acquiring the number of sub-frames which performs the repeat ACK/NACK transmission, component carrier information and a frequency-hopping mode on different component carriers; and finishing the repeat ACK/NACK transmission by adopting the frequency-hopping mode on the sub-frames of the component carriers according to the acquired contents. Thus, by adopting the method and the device of the invention, a repeat ACK/NACK transmission mechanism can be realized in the situation of carrier aggregation. Therefore, UE can acquire a frequency diversity gain to improve uplink coverage capability.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of method and apparatus of realizing repeat ACK/NACK transmission.
Background technology
Present existing LEE (Long Term Evolution, Long Term Evolution) system, be based on the system of scheduling on the one hand, namely by base station assigns running time-frequency resource carrying data, by terminal (UE) according to the control command downlink data receiving of base station or send upstream data: for example, for downlink data transmission, the base station is terminal configuration down control channel and downlink data, and terminal is understood PDCCH (PhysicalDownlink Control Channel earlier, Physical Downlink Control Channel) channel, if the descending control command at this terminal is arranged, the downlink data that sends according to control command frequency appointed resource location and MCS demodulates information base stations such as (Modulationand Coding Scheme, modulating-codings) then.
On the other hand, the LTE system also is based on HARQ (Hybrid Automatic Repeat Request, mix automatic repeat requests) system, be that receiving end is after receiving the data of transmission, send feedback information ACK/NACK to making a start according to the demodulation correctness, to determine whether to need to retransmit this transmission block: for example, downlink data transmission is received and feedback by terminal, and the base station determines according to the downlink feedback information that terminal sends whether needs retransmit this downlink data.And in same residential quarter, because the residing position of UE difference, often its channel quality difference is very big, thereby in order to guarantee the reliability of HARQ feedback, introduced repeat ACK/NACK mechanism (ACK/NACK repetition) in the LTE system: this repeat ACK/NACK mechanism is by high level configuration and release, do not open under default situations, namely UE only needs in the up feedback of a subframe transmission to downlink data under the default situations; And the number of repetition of this repeat ACK/NACK mechanism is disposed by high level, can be 2,4,6 or reserved, and wherein reserved represents to keep; After this mechanism was opened, UE sent the ACK/NACK feedback at a plurality of continuous sub-frame of uplink, and for TDD, the centre may stride across descending sub frame and special subframe, thereby absolute time is grown up in the number of repetition of repeat ACK/NACK mechanism; Simultaneously, during sending feedback, UE does not send other up signalings.
For example shown in Figure 1, subframe 1 to 6 all is sub-frame of uplink, and ACK/NACK goes up feedback at PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel); When system configuration UE be 4 ACK/NACK repeat to send the time, the feedback first of UE is carried out at PUCCH1, and it is high-rise by RRC (Radio Resource Control, Radio Resource control) repeat ACK/NACK of signaling configuration UE carries out at PUCCH4, and then remaining 3 ACK/NACK feedback of UE this moment continues transmission at PUCCH4.
But can only there be a member carrier (component carrier) in the LTE system, thereby is easier to for the realization ratio of repeat ACK/NACK mechanism; And for LTE-A (LTE upgrading) system, as shown in Figure 2, because carrier aggregation (carrier aggregation) technology that it has been introduced and can connect a plurality of member carrier of different frequency, also easily bandwidth has been expanded, thereby it can have a plurality of member carriers, and adopt at this kind under the situation of carrier aggregation, also do not realize the transmission means of repeat ACK/NACK mechanism at present.
Summary of the invention
What in view of this, the present invention solved is the problem that how to realize retransmitting ACK/NACK mechanism under the state of carrier aggregation that adopts in the LTE-A system.
For addressing the above problem, technical scheme provided by the invention is as follows:
A kind of method that realizes repeat ACK/NACK transmission comprises:
Obtain the number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that carry out repeat ACK/NACK transmission;
Adopt described frequency-hopping mode to finish the transmission of repeat ACK/NACK according to the described content that gets access in the described subframe of described member carrier.
Preferably, receive the notice of the number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that comprise repeat ACK/NACK transmission of base station transmission; Determine described number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that carries out repeat ACK/NACK transmission according to described notice.
Preferably, described notice receives by the RRC signaling.
Preferably, receive the notice of the number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that comprise repeat ACK/NACK transmission of base station transmission; Determine described number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that carries out repeat ACK/NACK transmission according to described notice, the frequency-hopping mode on the follow-up described different members carrier wave adopts fixed form.
Preferably, described frequency-hopping mode is specially: repeat ACK/NACK transmission takies same member carrier continuously.
Preferably, described frequency-hopping mode is specially: repeat ACK/NACK is transmitted between different member carriers and hockets.
Preferably, finish the Physical Uplink Control Channel difference of repeat ACK/NACK transmission in the different subframes of each member carrier.
A kind of device of realizing repeat ACK/NACK transmission, this device comprises:
Obtain the number of sub-frames of carrying out the transmission of repeat ACK/NACK, member carrier information and on the different members carrier wave frequency-hopping mode acquiring unit and adopt described frequency-hopping mode to finish the transmission unit of repeat ACK/NACK transmission according to the content that described acquiring unit gets access in the described subframe of described member carrier.
Preferably, described acquiring unit comprises: receiver module and extraction module; Wherein,
Described receiver module is used for the notice of the number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that comprise repeat ACK/NACK transmission of the transmission of reception base station;
Described extraction module is used for extracting and definite described number of sub-frames, member carrier information and frequency-hopping mode on the different members carrier wave that carries out repeat ACK/NACK transmission from the notice that described receiver module receives.
Preferably, described acquiring unit also comprises: be used for notifying the fixing frequency-hopping mode of described transmission unit following adopted to carry out the notification module of repeat ACK/NACK transmission after described extraction module determines to carry out the frequency-hopping mode of repeat ACK/NACK transmission.
A kind of base station comprises: first processing unit and second processing unit; Wherein, described first processing unit is used for determining that UE carries out number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave of repeat ACK/NACK transmission;
Described second processing unit is used for the various parameters that described first processing unit is determined are notified to described UE by high-level signaling.
Preferably, the frequency-hopping mode that described first processing unit is determined is that continuous ACK/NACK transmission takies same member carrier, or repeat ACK/NACK is transmitted between different member carriers and hockets.
As can be seen, adopt method and apparatus of the present invention, in the LTE-A system for member carrier that the repeat ACK of same UE/the NACK transmission configuration is different, carry out the repeat ACK/number of sub-frames of NACK transmission and the frequency-hopping mode on the different members carrier wave, make UE know the transmission of namely finishing repeat ACK/NACK behind the above-mentioned parameter at the described frequency-hopping mode of subframe employing of corresponding member carrier, thereby realized the repeat ACK/NACK transmission mechanism under state of carrier aggregation, and then make UE can obtain frequency diversity gain, thereby improve up covering power.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the repeat ACK/NACK schematic diagram of mechanism of LTE system in the prior art;
Fig. 2 is the carrier aggregation schematic diagram of LTE-A system;
Fig. 3 is the method flow schematic diagram of the embodiment of the invention 1;
Fig. 4 is first schematic diagram of realizing repeat ACK/NACK transmission in the embodiment of the invention 1;
Fig. 5 is second schematic diagram of realizing repeat ACK/NACK transmission in the embodiment of the invention 1;
Fig. 6 is the 3rd schematic diagram of realizing repeat ACK/NACK transmission in the embodiment of the invention 1;
Fig. 7 is the 4th schematic diagram of realizing repeat ACK/NACK transmission in the embodiment of the invention 1;
Fig. 8 is the apparatus structure schematic diagram of the embodiment of the invention 2.
Embodiment
Basic thought of the present invention is in the LTE-A system member carrier for the repeat ACK of same UE/the NACK transmission configuration is different, namely make UE know in several ways and carry out the number of sub-frames that repeat ACK/NACK transmits, which and UE is known member carrier to carry out the transmission of repeat ACK/NACK at, and the frequency-hopping mode (hoppingpattern) on the different members carrier wave when carrying out the transmission of repeat ACK/NACK, UE is knowing that namely finishing repeat ACK/NACK at the described frequency-hopping mode of subframe employing of corresponding member carrier behind the above-mentioned parameter transmits, thereby realized the repeat ACK/NACK transmission mechanism under state of carrier aggregation, and then make UE can obtain frequency diversity gain, thereby improve up covering power.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described; Obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention 1 provides the method for a kind of repeat ACK/NACK transmission, and as shown in Figure 3, this method comprises:
In step 301, obtain the number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that carry out repeat ACK/NACK transmission;
In step 302, adopt described frequency-hopping mode to finish the transmission of repeat ACK/NACK according to the described content that gets access in the described subframe of described member carrier;
In embodiments of the present invention, UE can obtain number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that carries out repeat ACK/NACK transmission in several ways; For example can get parms by the mode that receives the high-level signaling notice, wherein represent to carry out number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave of repeat ACK/NACK transmission by the state information of high-level signaling bit; In addition, after having selected described frequency-hopping mode, the base station does not reinform the frequency-hopping mode that UE carries out repeat ACK/NACK transmission, but UE adopts fixing frequency-hopping mode to carry out repeat ACK/NACK transmission etc.; Be that example is elaborated with described dual mode below, wherein, the different Physical Uplink Control Channel during with the transmission of repeat ACK/NACK on the different subframes of different members carrier wave are example, but those skilled in the art readily understand and are not limited thereto:
1), UE obtains the various parameters of carrying out repeat ACK/NACK transmission by the notice that receives high-level signaling; Concrete, UE receives the base station by the notice of the number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that comprise repeat ACK/NACK transmission of high-level signaling transmission, determine described number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that carries out the transmission of repeat ACK/NACK according to described notice then, and all can again according to notice determine parameter when carrying out repeat ACK/NACK transmission at every turn; Wherein, this high-level signaling can be the RRC signaling, but is not limited thereto;
It should be noted that, when carrying out the transmission of repeat ACK/NACK, described frequency-hopping mode can be that continuous repeat ACK/NACK transmission takies a member carrier, the frequency-hopping mode that takies a member carrier with two continuous feedback is example, and repeat to be sent as example with what system configuration UE was 6 ACK/NACK, as shown in Figure 4, wherein subframe 1 to 6 all is sub-frame of uplink, ACK/NACK feeds back at PUCCH: the PUCCH1 that feeds back first at member carrier 1 of UE carries out, and the repeat ACK/NACK first time of RRC signaling configuration UE carries out at the PUCCH4 of member carrier 1, and RRC signaling configuration UE second, three times repeat ACK/NACK carries out at the PUCCH4 of member carrier 2, and RRC signaling configuration UE the 4th, five times repeat ACK/NACK carries out at the PUCCH4 of member carrier 3;
Certainly, also can adopt another frequency-hopping mode, namely each ACK/NACK is transmitted on the different member carriers and alternately carries out; Other parameters are identical with above-mentioned example, repeat no more; As shown in Figure 5: wherein subframe 1 to 6 is sub-frame of uplink all, and ACK/NACK feeds back at PUCCH; The feedback first of UE and the PUCCH1 that RRC signaling configuration UE is fed back for the third time at member carrier 1 carry out, and first, fourth repeat ACK/NACK of RRC signaling configuration UE be transmitted on the PUCCH4 of member carrier 2 and carry out, and second, five repeat ACK/NACK of RRC signaling configuration UE is transmitted on the PUCCH4 of member carrier 3 and carries out.
2), UE obtains the various parameters of carrying out repeat ACK/NACK transmission by the notice that receives high-level signaling, and after UE has selected described frequency-hopping mode, the base station does not reinform the frequency-hopping mode that UE carries out repeat ACK/NACK transmission, but UE adopts fixing frequency-hopping mode to carry out repeat ACK/NACK transmission; Concrete, UE receives the base station by the notice of the number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that comprise repeat ACK/NACK transmission of high-level signaling transmission, determines described number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that carries out repeat ACK/NACK transmission according to described notice then; When needs carry out the transmission of repeat ACK/NACK again, need not to receive new frequency-hopping mode, but adopt fixing frequency-hopping mode to transmit;
It should be noted that equally and adopt this kind mode and aforesaid way 1) roughly the same, frequency-hopping mode also can be different form; For example when carrying out the transmission of repeat ACK/NACK, described frequency-hopping mode can be that continuous repeat ACK/NACK transmission takies a member carrier, the frequency-hopping mode that takies a member carrier with two continuous feedback is example, and repeat to be sent as example with what system configuration UE was 4 ACK/NACK, as shown in Figure 6, wherein subframe 1 to 6 is sub-frame of uplink all, and ACK/NACK feeds back at PUCCH; Configuration according to high-level signaling, the PUCCH1 that feeds back first at member carrier 1 of UE carries out, and the repeat ACK/NACK first time of RRC signaling configuration UE carries out at the PUCCH4 of member carrier 1, and 2 times remaining ACK/NACK feedbacks of UE continue transmission at the PUCCH4 of member carrier 2;
And another frequency-hopping mode, namely each ACK/NACK is transmitted in and alternately carries out on the different member carriers, and other parameters are identical with above-mentioned example, repeat no more; As shown in Figure 7, also repeat to be sent as example with what system configuration UE was 4 ACK/NACK, the PUCCH1 that feeds back first at member carrier 1 of UE carries out, and the repeat ACK/NACK first time of RRC signaling configuration UE carries out at the PUCCH4 of member carrier 2, and the repeat ACK/NACK second time of RRC signaling configuration UE carries out at the PUCCH4 of member carrier 1, and the repeat ACK/NACK for the third time of RRC signaling configuration UE carries out at the PUCCH4 of member carrier 2;
Wherein, if adopt the fixing mode of frequency-hopping mode in the LTE-A system, then the follow-up repeat ACK that carries out of UE/NACK transmission all adopts identical frequency-hopping mode to carry out; Otherwise follow-up UE carries out all needing when repeat ACK/NACK transmits to carry out according to the frequency-hopping mode of high-level signaling notice at every turn, does not repeat them here.
As can be seen, adopt the method for the embodiment of the invention, it is the member carrier that repeat ACK/the NACK transmission configuration is different of same UE in the LTE-A system, and inform that UE carries out the number of sub-frames of repeat ACK/NACK transmission, frequency-hopping mode on member carrier information and the different members carrier wave, make UE know the transmission of namely finishing repeat ACK/NACK behind the above-mentioned parameter at the described frequency-hopping mode of subframe employing of corresponding member carrier, thereby realized the repeat ACK/NACK transmission mechanism under state of carrier aggregation, and then make UE can obtain frequency diversity gain, thereby improve up covering power.
Based on above-mentioned thought, the embodiment of the invention 2 has proposed the device of realization repeat ACK/NACK transmission again, as shown in Figure 8, this device 800 comprises: obtain the number of sub-frames of carrying out the transmission of repeat ACK/NACK, member carrier information and on the different members carrier wave frequency-hopping mode acquiring unit 810 and adopt described frequency-hopping mode to finish the transmission unit 820 of repeat ACK/NACK transmission according to the content that described acquiring unit 810 gets access in the described subframe of described member carrier.
Wherein, described acquiring unit 810 comprises: receiver module 811 and extraction module 812; Wherein, described receiver module 811 is used for the notice of the number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that comprise repeat ACK/NACK transmission of the transmission of reception base station; Described extraction module 812 is used for extracting and definite described number of sub-frames, member carrier information and frequency-hopping mode on the different members carrier wave that carries out repeat ACK/NACK transmission from the notice that described receiver module 811 receives;
It should be noted that, described acquiring unit 810 also comprises: be used for notifying the fixing frequency-hopping mode of described transmission unit 820 following adopted to carry out the notification module 813 of repeat ACK/NACK transmission after described extraction module determines to carry out the frequency-hopping mode of repeat ACK/NACK transmission.
In addition, the embodiment of the invention 3 has also proposed a kind of base station, comprising: first processing unit and second processing unit; Wherein, described first processing unit is used for determining that UE carries out number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave of repeat ACK/NACK transmission; Described second processing unit is used for the various parameters that described first processing unit is determined are notified to described UE by high-level signaling.
Wherein, the frequency-hopping mode that described first processing unit is determined is that continuous ACK/NACK transmission takies same member carrier, or repeat ACK/NACK is transmitted between different member carriers and hockets.
Certainly, those skilled in the art understand, and realize in above-described embodiment 2 that the device of repeat ACK/NACK transmission also can be regarded as user terminal or its part in the specific implementation; User terminal during described concrete implement also comprises the unit that the device described in above-described embodiment comprises when comprising each parts that domestic consumer's terminal comprises; the user terminal that namely comprises each unit of said apparatus also should be included within the scope that the present invention protects; but be not limited thereto, do not repeat them here.
It will be understood by those skilled in the art that and to use many different technologies and in the technology any one to come expression information, message and signal.For example, the message of mentioning in the above-mentioned explanation, information can be expressed as voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or above combination in any.
The professional can also further should be able to recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, composition and the step of each example described in general manner according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for using distinct methods to realize described function to each, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a method that realizes repeat ACK/NACK transmission is characterized in that, comprising:
Frequency-hopping mode when obtaining number of sub-frames, the member carrier information of carrying out the transmission of repeat ACK/NACK in several ways and carrying out repeat ACK/NACK transmission on the different members carrier wave, described member carrier information comprises and need carry out repeat ACK/NACK information transmitted at which member carrier;
Adopt described frequency-hopping mode to finish the transmission of repeat ACK/NACK according to the described content that gets access in the described subframe of corresponding member carrier.
2. method according to claim 1 is characterized in that:
Receive the notice of the number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that comprise repeat ACK/NACK transmission of base station transmission;
Determine described number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that carries out repeat ACK/NACK transmission according to described notice.
3. method according to claim 2 is characterized in that:
Described notice receives by the RRC signaling.
4. method according to claim 2 is characterized in that:
Frequency-hopping mode on the described different members carrier wave adopts fixed form.
5. according to any described method of claim 1 to 4, it is characterized in that described frequency-hopping mode is specially:
Repeat ACK/NACK transmission takies same member carrier continuously.
6. according to any described method of claim 1 to 4, it is characterized in that described frequency-hopping mode is specially:
Repeat ACK/NACK is transmitted between different member carriers and hockets.
7. according to any described method of claim 1 to 4, it is characterized in that:
Finish the Physical Uplink Control Channel difference of repeat ACK/NACK transmission in the different subframes of each member carrier.
8. device of realizing repeat ACK/NACK transmission is characterized in that this device comprises:
When obtaining number of sub-frames, the member carrier information of carrying out the transmission of repeat ACK/NACK in several ways and carrying out repeat ACK/NACK transmission on the different members carrier wave acquiring unit of frequency-hopping mode, described member carrier information comprises and need carry out repeat ACK/NACK information transmitted at which member carrier;
The content that gets access to according to described acquiring unit adopts described frequency-hopping mode to finish the transmission unit of repeat ACK/NACK transmission in the described subframe of corresponding member carrier.
9. device according to claim 8 is characterized in that, described acquiring unit comprises: receiver module and extraction module; Wherein,
Described receiver module is used for the notice of the number of sub-frames, member carrier information and the frequency-hopping mode on the different members carrier wave that comprise repeat ACK/NACK transmission of the transmission of reception base station;
Described extraction module is used for extracting and definite described number of sub-frames, member carrier information and frequency-hopping mode on the different members carrier wave that carries out repeat ACK/NACK transmission from the notice that described receiver module receives.
10. device according to claim 9, it is characterized in that, described acquiring unit also comprises: be used for notifying the fixing frequency-hopping mode of described transmission unit following adopted to carry out the notification module of repeat ACK/NACK transmission after described extraction module determines to carry out the frequency-hopping mode of repeat ACK/NACK transmission.
11. a base station is characterized in that, comprising: first processing unit and second processing unit; Frequency-hopping mode when wherein, described first processing unit be used for to determine that UE carries out number of sub-frames, the member carrier information of repeat ACK/NACK transmission and carries out repeat ACK/NACK transmission on the different members carrier wave;
Described second processing unit is used for the various parameters that described first processing unit is determined are notified to described UE by high-level signaling.
12. base station according to claim 11 is characterized in that:
The frequency-hopping mode that described first processing unit is determined is that continuous ACK/NACK transmission takies same member carrier, or repeat ACK/NACK is transmitted between different member carriers and hockets.
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| JP6408001B2 (en) * | 2014-01-28 | 2018-10-17 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ | Data transmission method and apparatus, data transmission / reception method, and communication system |
| WO2015139322A1 (en) * | 2014-03-21 | 2015-09-24 | 华为技术有限公司 | Base station, user equipment, and control channel transmission and receiving method |
| CN105207752B (en) * | 2014-06-25 | 2019-01-08 | 电信科学技术研究院 | A kind of method and device that signal sends and detects |
| EP3197060B1 (en) * | 2014-08-07 | 2019-11-13 | Huawei Technologies Co. Ltd. | Data transmission method, device and system |
| DK4007432T3 (en) * | 2016-11-09 | 2023-10-09 | Ntt Docomo Inc | USER TERMINAL, RADIO COMMUNICATION METHOD, BASE STATION AND SYSTEM |
| CN107342851B (en) | 2017-06-15 | 2020-05-26 | 电信科学技术研究院 | Configuration of repeated transmission and repeated transmission method and device |
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