CN102447543B - Transmission method of confirmation information in time division duplexing system and user equipment - Google Patents
Transmission method of confirmation information in time division duplexing system and user equipment Download PDFInfo
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- CN102447543B CN102447543B CN201010504433.2A CN201010504433A CN102447543B CN 102447543 B CN102447543 B CN 102447543B CN 201010504433 A CN201010504433 A CN 201010504433A CN 102447543 B CN102447543 B CN 102447543B
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Abstract
The invention discloses a transmission method of confirmation information in a time division duplexing system and user equipment. The method comprises the following steps: confirming a physical uplink control channel format 3 (PUCCH Format 3) which is already configured by the user equipment; determining that the bit number of the confirmation information needing to be fed back exceeds a threshold by the user equipment; determining that the bit number of the confirmation information needing to be fed back does not exceed a preset threshold value by the user equipment; and transmitting the confirmation information needing to be fed back by the user equipment through adopting the PUCCH Format 3. By the transmission method of the confirmation information in the time division duplexing system and the user equipment, the confirmation information can be integrally fed back by the user equipment.
Description
Technical field
The present invention relates to the communications field, in particular to launching technique and the subscriber equipment of the confirmation in a kind of tdd systems.
Background technology
3G (Third Generation) Moblie partner program regulation LTE-Advanced base station can configure PUCCH Format (form) 3 to realize FR ACK/NACK bit feedback to UE, further, PUCCH Format 3 whether is used to be configured by the high level of base station.Such as, radio resource control layer (Radio Resource Control, referred to as RRC).
At present, at time division duplex (Time Division Duplex, referred to as TDD) in system, UE can only feed back at most the ACK/NACK information of 4 bits, according to 3GPP agreement TS36.211, the proportioning 3 of frame structure 2 (i.e. TDD system), proportioning 4 and proportioning 5 times, base station one-time continuous may be there is and dispatch 5 the even situation (comprising special subframe) of 9 descending sub frames, in this case, owing to needing the ACK/NACK information of feedback more than 4 bits, therefore user equipment (UE) separately can not report the ACK/NACK information of each coded word.
In addition, TDD system under certain proportioning, also may dispatch 3 or 4 descending sub frames continuously and each subframe launches the situation (comprising special subframe) of 2 coded words, in this case, UE needs the ACK/NACK information of feedback also more than 4 bits, therefore, UE clearly can not feed back the ACK/NACK information of each transmission block on each descending sub frame, thus causes base station to know knowing its transmission block in each of the lower row subframe transmitted whether to be all correctly transferred to UE.
In correlation technique, in TDD system, exceed a threshold value bit (such as 4 bits) and the UE in some cases caused separately can not report that the ACK/NACK information of each coded word and base station cannot be known knows whether the transmission block that it in each of the lower row subframe is transmitted all correctly is transferred to UE because UE can not feed back.In said method embodiment of the present invention, UE adopts PUCCH Format (form) 3 feedback to exceed threshold value (being such as 4 bits) ACK/NACK information completely ground performance ACK/NACK information, and then realizes ACK/NACK information and can know whether the transmission block that it in each of the lower row subframe is transmitted all correctly is transferred to UE in base station in a tdd system.
Preferably, determine to need the bit number of the above-mentioned confirmation of feedback not exceed described threshold value according to above-mentioned subscriber equipment; Above-mentioned subscriber equipment launches the above-mentioned confirmation of whole bit number by PUCCH Format 3.In preferred implementation process, above-mentioned threshold value is 4.
In preferred implementation process, above-mentioned subscriber equipment is determined to need the bit number feeding back above-mentioned confirmation to exceed described predetermined threshold value; Above-mentioned subscriber equipment is transmitted to the number of the descending sub frame of described subscriber equipment according to the Physical Downlink Control Channel accounting base-station that descending distribution indicates and receives, and wherein, described descending sub frame comprises special subframe;
The n multiple of the number of descending sub frame described in above-mentioned subscriber devices compute and the difference of above-mentioned predetermined threshold value, wherein, n is the number of the coded word that this descending sub frame each is launched.In preferred implementation process, n=2.
The confirmation information of above-mentioned subscriber equipment to the last above-mentioned difference subframe needed in the above-mentioned confirmation of feedback carries out logical AND operation, obtain the new confirmation of this difference subframe, the confirmation new by this and the confirmation of other subframe are recombinated.Confirmation after above-mentioned subscriber equipment adopts PUCCH Format 3 to launch all restructuring.
Fig. 2 is the launching technique schematic flow sheet of the confirmation according to the preferred embodiment of the invention in TDD system.As shown in Figure 2, this launching technique comprises:
Step S202, starts;
Step S204, UE check the configuration state of PUCCH Format3 and need to launch the total number of bits of ACK/NACK;
Step S206, UE judge whether to be configured with PUCCH Format3, and if so, then proceed to step S208, otherwise proceed to step S222, flow process terminates;
Step S208, UE judge whether to need to launch the confirmation more than 4 bits, if so, then proceed to step S210, otherwise carry out step S220;
According to 3GPP agreement TS36.211, the proportioning 3 of frame structure 2 (i.e. TDD system), proportioning 4 and proportioning 5 times, base station one-time continuous may be there is and dispatch 5 the even situation (comprising special subframe) of 9 descending sub frames, in this case, owing to needing the ACK/NACK information of feedback more than 4 bits;
In addition, TDD system under certain proportioning, also may dispatch 3 or 4 descending sub frames continuously and each subframe launches the situation (comprising special subframe) of 2 coded words, in this case, UE needs the ACK/NACK information of feedback also more than 4 bits
Step S210, UE carry out according to the descending PDCCH for descending scheduling indicating and receive that distributes the number that accounting base-station is transmitted to the descending sub frame of this UE, then proceed to step S212;
It should be noted that in the embodiment of the present invention, the descending sub frame of statistics comprises special subframe, illustrates no longer in addition.
Step S212, UE judge to need the bit number of the above-mentioned confirmation of feedback whether to exceed predetermined threshold value, if so, then proceed to step S214, otherwise proceed to step S220;
Step S214, above-mentioned UE calculate the n multiple of the number of above-mentioned descending sub frame and the difference of above-mentioned predetermined threshold value, and wherein, n is the number of the coded word that each described descending sub frame is launched.Then step S216 is entered.
In specific implementation process, TDD system under certain proportioning, also may dispatch 3 or 4 descending sub frames continuously and each subframe launches the situation (comprising special subframe) of 2 coded words, in this case, and n=2.
Step S216, the confirmation information of above-mentioned UE to the last above-mentioned difference subframe needed in the above-mentioned confirmation of feedback carries out logical AND operation, obtain the new confirmation of this difference subframe, the confirmation new by this and the confirmation of other subframe are recombinated; It should be noted that the confirmation of other subframe herein can not occurrence logic and operation, do not change.
Confirmation after step S218, above-mentioned UE adopt PUCCH Format 3 to launch all restructuring;
Step S220, above-mentioned UE adopt PUCCH Format 3 to launch the above-mentioned confirmation needing feedback;
Step S222, terminates.
Summary of the invention
For in correlation technique, in a tdd system, UE separately can not report that the ACK/NACK information of each coded word and base station cannot be known and knows whether the transmission block that it in each of the lower row subframe is transmitted all correctly is transferred to the problems such as UE in some cases, the invention provides launching technique and the subscriber equipment of the confirmation in a kind of TDD system, with at least one that solves the problem.
According to an aspect of the present invention, provide the launching technique of the confirmation in a kind of tdd systems, comprising: subscriber equipment confirms configures physical ascending control channel form 3 (PUCCH Format 3); Subscriber equipment is determined to need the bit number of the confirmation of feedback to exceed threshold value; Subscriber equipment is determined to need the bit number of the confirmation of feedback not exceed predetermined threshold value; Subscriber equipment adopts PUCCH Format 3 to launch the described confirmation needing feedback.
According to another aspect of the present invention, provide a kind of subscriber equipment, comprising: configuration module, for confirming configures physical ascending control channel form 3 (PUCCH Format 3); First determination module, needs the bit number of the confirmation of feedback to exceed threshold value for determining; Second determination module, needs the bit number of the confirmation of feedback not exceed predetermined threshold value for determining; Transmitter module, launches for adopting described PUCCH Format 3 and exceedes described threshold value but the described confirmation not exceeding described predetermined threshold value.
In the present invention, UE adopts PUCCH Format (form) 3 feedback to exceed threshold value (being such as 4 bits) ACK/NACK information and to solve in correlation technique in TDD system and exceed UE in some cases that a threshold value bit (such as 4 bits) causes and separately can not report that the ACK/NACK information of each coded word and base station cannot be known because UE can not feed back and know whether transmission block that it in each of the lower row subframe is transmitted all correctly is transferred to the problem of UE, thus ACK/NACK information can be showed in information completely ground, and then realize ACK/NACK information and can know whether the transmission block that it in each of the lower row subframe is transmitted all correctly is transferred to UE in base station in a tdd system.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the launching technique flow chart according to the confirmation in the TDD system of the embodiment of the present invention;
Fig. 2 is the launching technique schematic flow sheet of the confirmation according to the preferred embodiment of the invention in TDD system;
Fig. 3 is the user device architecture block diagram according to the embodiment of the present invention;
Fig. 4 is user device architecture schematic diagram according to the preferred embodiment of the invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Fig. 1 is the launching technique flow chart according to the confirmation in the TDD system of the embodiment of the present invention.As shown in Figure 1, the method comprises:
S102, subscriber equipment confirms to have configured PUCCH Format 3;
S104, subscriber equipment is determined to need the bit number of the confirmation of feedback to exceed threshold value;
S106, subscriber equipment is determined to need the bit number of the confirmation of feedback not exceed predetermined threshold value;
S108, subscriber equipment adopts PUCCH Format 3 to launch the above-mentioned confirmation needing feedback;
Embodiment one
The present embodiment has given for TDD subframe proportioning 5, base station RRC the RRC of UE is configured with PUCCH Format 3, UE needs to feed back 9x2=18 bit ACK/NACK information, threshold value is 18 by reference to the accompanying drawings 2 to describe its processing method, comprises the steps:
Step S204: subscriber equipment checks the configuration state of Physical Uplink Control Channel form 3 and needs the hybrid automatic repeat-request confirmation total number of bits of transmitting.Check result is the ACK/NACK information being configured with PUCCH Format 3, needing feedback 18 bit.
Step S206: owing to being configured with PUCCH Format 3 in the present embodiment, therefore proceed to step S208.
Step S208: because UE needs to launch more than 4 confirmation bits, therefore proceed to step S210 and step S220 does not perform.
Step S210: in the present embodiment, base station is to oneself transmitting 9 descending sub frames (containing special subframe; Each subframe usage space multiplex mode is launched).Therefore step S212 is proceeded to.
Step S212: owing to needing the ACK/NACK total number of bits of launching to be 18, threshold value is that 18, ACK/NACK total number of bits does not exceed threshold value, therefore goes to step S220 and step S214 does not perform to step S218.
Step S214: do not perform.
Step S216: do not perform.
Step S218: do not perform.
Step S220: subscriber equipment uses Physical Uplink Control Channel form 3 to launch whole confirmation bit.Go to step ten afterwards.
Step S222: flow process terminates.
As can be seen from embodiment one, processing method of the present invention can express the confirmation of 18 bits in tdd systems, thus can know clearly whether which transmission block of Base Transmitter correctly transmits completely.
Embodiment two
The present embodiment for TDD subframe proportioning 5, base station RRC given the RRC of UE is configured with PUCCH Format 3, UE needs to feed back 9x2=18 bit ACK/NACK information, threshold value for 11 by reference to the accompanying drawings scheme shown in 2 to describe its processing method, comprise the steps:
Step S204: subscriber equipment checks the configuration state of Physical Uplink Control Channel form 3 and needs the hybrid automatic repeat-request confirmation total number of bits of transmitting.Check result is the ACK/NACK information being configured with PUCCH Format 3, needing feedback 18 bits.The ACK/NACK of 18 bits is as shown in table 1 herein.
Table 1
Step S206: owing to being configured with PUCCH Format 3, therefore proceed to step S208.
Step S208: because needs are launched more than 4 confirmation bits, therefore go to step S210 and step S220 does not perform.
Step S210: due in the present embodiment, base station is to oneself transmitting 9 descending sub frames (containing special subframe; Each subframe usage space multiplex mode is launched), proceed to step S212 process afterwards.
Step S212: because the present embodiment needs the ACK/NACK total number of bits of launching to be 18, threshold value is 11, has exceeded threshold value, therefore goes to step S214 and step S220 does not perform.
The difference that step S214:UE calculates is 9 × 2-11=7, goes to step S216 afterwards.
The ACK/NACK of last 7 subframes is carried out logical AND operation by step S216:UE, and last ACK/NACK information (totally 11 bits) as shown in table 2, goes to step S218 afterwards.
Table 2
11 bit ACK shown in table 2/nack message is launched by step S218:UE.Go to step S222 afterwards.
Step S220: do not perform.
Step S222: flow process terminates.
Visible, the processing method of the embodiment of the present invention can express the confirmation of 11 bits in tdd systems, thus clearly can know whether which transmission block of Base Transmitter correctly transmits, and in existing 3GPP agreement, (proportioning 5) at most feedback ACK/NACK information of 2 bits and the ACK/NACK between subframe is (all ACK/NACK for coded word 0 tie up formation bit, and all ACK/NACK for coded word 1 tie up and form another one bit) that tie up under this proportioning.
Embodiment three
The present embodiment has given for TDD subframe proportioning 4, base station RRC the RRC of UE is configured with PUCCH Format 3, UE needs to feed back 7x2=14 bit ACK/NACK information, threshold value is 11 to describe its processing method, comprises the steps:
Step S204: subscriber equipment checks the configuration state of Physical Uplink Control Channel form 3 and needs the hybrid automatic repeat-request confirmation total number of bits of transmitting.Check result is the ACK/NACK information being configured with PUCCH Format 3, needing feedback 14 bit.14 ACK/NACK bits are herein as shown in table 3.
Table 3
Step S206: owing to being configured with PUCCH Format 3, therefore go to step S208.
Step S208: owing to needing to launch more than 4 confirmation bits in the present embodiment, therefore go to step S210 and step S220 does not perform.
Step S210: known by hypotheses, base station is to oneself transmitting 7 descending sub frames (containing special subframe; Each subframe usage space multiplex mode is launched).Go to step S212 afterwards.
Step S212: due in the present embodiment, need the ACK/NACK total number of bits of launching to be 14, threshold value is 11, has exceeded threshold value, therefore goes to step S214 and step S220 does not perform.
The difference that step S214:UE calculates is 7 × 2-11=3.Go to step S216 afterwards.
The ACK/NACK of last 3 subframes is carried out logical AND operation by step S216:UE, last ACK/NACK information (totally 11 bits) as shown in table 4.Go to step S218 afterwards.
Table 4
11 bit ACK shown in table 4/nack message is launched by step S218:UE.Turn S222 afterwards.
Step S220: do not perform.
Step S222: flow process terminates.
As can be seen from embodiment three, the embodiment of the present invention can express the confirmation of 11 bits in tdd systems, thus clearly can know whether which transmission block of Base Transmitter correctly transmits.
Fig. 3 is the user device architecture block diagram according to the embodiment of the present invention.As shown in Figure 3, this subscriber equipment comprises: configuration module 30, has configured PUCCH Format 3 for confirming; First determination module 32, needs the bit number of the confirmation of feedback to exceed threshold value for determining; Second determination module 34, needs the bit number of the confirmation of feedback not exceed predetermined threshold value for determining; Transmitter module 36, launches for adopting above-mentioned PUCCH Format 3 and exceedes threshold value and the above-mentioned confirmation not exceeding the needs feedback of predetermined threshold value.
Fig. 4 is a preferred implementation of the embodiment of the present invention, and see accompanying drawing 4, above-mentioned subscriber equipment can also comprise: the 3rd determination module 402, needs the bit number of the above-mentioned confirmation of feedback not exceed above-mentioned threshold value for determining; Wherein this threshold value can be 4 bits; Then above-mentioned transmitter module 36 is also for launching the confirmation that whole bit number does not exceed above-mentioned threshold value by PUCCH Format 3.
As shown in Figure 4, in another preferred implementation of the embodiment of the present invention, above-mentioned subscriber equipment can also comprise with lower module: the 4th determination module 404, needs the bit number of the above-mentioned confirmation of feedback to exceed above-mentioned predetermined threshold value for determining; Descending sub frame statistical module 406, the Physical Downlink Control Channel accounting base-station for indicating according to descending distribution and receive is transmitted to the number of the descending sub frame of above-mentioned subscriber equipment, and wherein, above-mentioned descending sub frame comprises special subframe; First computing module 408, for calculating the n multiple of number and the difference of above-mentioned predetermined threshold value of the descending sub frame of above-mentioned descending sub frame statistical module 406 statistics, wherein, n is the number of the coded word that each above-mentioned descending sub frame is launched; Described n=2, the n=2 about when, in said method preferred embodiment, existingly to describe, do not repeating herein.Second computing module 410, the confirmation information of the last above-mentioned difference subframe that the bit number for determining above-mentioned 4th determination module 404 exceedes in the above-mentioned confirmation of above-mentioned predetermined threshold value carries out logical AND operation, obtains the new confirmation of this difference subframe; Recombination module 412, for recombinating the confirmation of above-mentioned new confirmation and other subframe; Above-mentioned transmitter module 36 is also for adopting PUCCH Format 3 to launch the confirmation after all restructuring.
The each module that it should be noted that in the said equipment preferred working method combined of being correlated with specifically see the associated description of said method embodiment, can repeat no more herein.
Comprehensively above-mentioned, can find out, in embodiments of the present invention, UE adopts PUCCHFormat3 feedback to exceed threshold value (being such as 4 bits) ACK/NACK information and to solve in correlation technique in TDD system and exceed UE in some cases that a threshold value bit (such as 4 bits) causes and separately can not report that the ACK/NACK information of each coded word and base station cannot be known because UE can not feed back and know whether transmission block that it in each of the lower row subframe is transmitted all correctly is transferred to the problem of UE, thus ACK/NACK information can be showed in information completely ground, and then realize ACK/NACK information and can know whether the transmission block that it in each of the lower row subframe is transmitted all correctly is transferred to UE in base station in a tdd system.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a launching technique for the confirmation in TDD system, is characterized in that, comprising:
Subscriber equipment confirms configures physical ascending control channel form 3 PUCCH Format 3;
If described subscriber equipment is determined to need the bit number of the confirmation of feedback to exceed threshold value;
Described subscriber equipment is determined to need the bit number of the confirmation of feedback not exceed predetermined threshold value;
Described subscriber equipment adopts PUCCH Format 3 to launch the described confirmation needing feedback;
If described subscriber equipment is determined to need the bit number of the described confirmation of feedback to exceed described predetermined threshold value;
Described subscriber equipment is transmitted to the number of the descending sub frame of described subscriber equipment according to the Physical Downlink Control Channel accounting base-station that descending distribution indicates and receives, and wherein, described descending sub frame comprises special subframe;
The n multiple of the number of descending sub frame described in described subscriber devices compute and the difference of described predetermined threshold value, wherein, n is the number of the coded word that each described descending sub frame is launched;
The confirmation information of described subscriber equipment to the last described difference subframe needed in the described confirmation of feedback carries out logical AND operation, obtain the new confirmation of this difference subframe, the confirmation of described new confirmation and other subframe is recombinated;
Confirmation after described subscriber equipment adopts PUCCH Format 3 to launch all restructuring.
2. method according to claim 1, is characterized in that, described method also comprises:
Described subscriber equipment is determined to need the bit number of the described confirmation of feedback not exceed described threshold value;
Described subscriber equipment launches the described confirmation of whole bit number by PUCCH Format 3.
3. method according to claim 1 and 2, is characterized in that, described threshold value is 4.
4. method according to claim 1, is characterized in that, described n=2.
5. a subscriber equipment, is characterized in that, comprising:
Configuration module, for confirming configures physical ascending control channel form 3 PUCCH Format 3;
First determination module, needs the bit number of the confirmation of feedback to exceed threshold value for determining;
Second determination module, needs the bit number of the confirmation of feedback not exceed predetermined threshold value for determining;
Transmitter module, launches for adopting described PUCCH Format 3 and exceedes described threshold value but the described confirmation not exceeding described predetermined threshold value;
4th determination module, needs the bit number of the described confirmation of feedback to exceed described predetermined threshold value for determining;
Descending sub frame statistical module, the Physical Downlink Control Channel accounting base-station for indicating according to descending distribution and receive is transmitted to the number of the descending sub frame of described subscriber equipment, and wherein, described descending sub frame comprises special subframe;
First computing module, for the difference of the n multiple and described predetermined threshold value that calculate the number of the descending sub frame of described descending sub frame statistical module counts, wherein, n is the number of the coded word that each described descending sub frame is launched;
Second computing module, for carrying out logical AND operation to the confirmation information of the last described difference subframe in described confirmation, obtains the new confirmation of this difference subframe;
Recombination module, for recombinating the confirmation of described new confirmation and other subframe;
Described transmitter module is also for adopting PUCCH Format 3 to launch the confirmation after all restructuring.
6. subscriber equipment according to claim 5, is characterized in that, also comprises:
3rd determination module, needs the bit number of the described confirmation of feedback not exceed described threshold value for determining;
Described transmitter module is also for launching the described confirmation of the whole bit numbers not exceeding described threshold value by described PUCCH Format 3.
7. the subscriber equipment according to claim 5 or 6, is characterized in that, described threshold value is 4.
8. subscriber equipment according to claim 5, is characterized in that, described n=2.
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| CN109150413B (en) * | 2017-06-16 | 2021-06-15 | 华为技术有限公司 | Method and device for sending and receiving feedback information |
| CN109547178B (en) * | 2017-09-22 | 2020-10-20 | 大唐移动通信设备有限公司 | PUCCH resource allocation method and device |
| WO2019194228A1 (en) * | 2018-04-05 | 2019-10-10 | 株式会社Ｎｔｔドコモ | User device and base station device |
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| US8634333B2 (en) * | 2008-05-07 | 2014-01-21 | Qualcomm Incorporated | Bundling of ACK information in a wireless communication system |
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