CN103532658A - SR processing method, eNB and UE - Google Patents
SR processing method, eNB and UE Download PDFInfo
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- CN103532658A CN103532658A CN201210225120.2A CN201210225120A CN103532658A CN 103532658 A CN103532658 A CN 103532658A CN 201210225120 A CN201210225120 A CN 201210225120A CN 103532658 A CN103532658 A CN 103532658A
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Abstract
The invention discloses a scheduling request (SR) processing method, an E-UTRAN NodeB (eNB), and user equipment (UE). The method comprises the following steps that: the eNB determines whether an SR is multiplexed to a sounding reference signal (SRS); and the eNB informs the UE of the determination result. With the method, the eNB and the UE, a problem that the flow of the system is reduced seriously because of multi-time downlink subframe retransmission caused by inaccuracy of feedback information due to reduction of a code channel number for positive acknowledgement (ACK) sending based on multiplexing of the SR and the ACK can be solved. And furthermore, the method for SR processing is brought forward; and the system flow can be well controlled because the ACK bit number does not occupied.
Description
Technical field
The present invention relates to the communications field, processing method, evolved base station (E-UTRAN NodeB in particular to a kind of dispatch request (Scheduling Request, referred to as SR), referred to as eNB) and subscriber equipment (User Equipment, referred to as UE).
Background technology
At Long Term Evolution (Long-Term Evolution, referred to as LTE) time division duplex (Time Division Duplex, referred to as TDD) in system, eNB can be by certain cycle by fixing Physical Uplink Control Channel (Physical Uplink Control Channel, referred to as PUCCH) distribute to SR, wherein, SR shows whether there is resource request for UE to eNB.When UE has resource request, SR is put to 1, while having, do not set to 0.UE is used PUCCH format 1 form to send SR.If UE has correct/error response message (positive acknowledgement/negative acknowledgement simultaneously, referred to as ACK/NACK) need to send time, UE will send with PUCCH format 1b form SR and ACK/NACK after multiplexing on same code channel.
ENB, when frequency of utilization selectivity scheduling strategy, can Resources allocation require UE to send measuring reference signals (Sounding Reference Signal, referred to as SRS).SRS is for channel detection, and its detect cycle is to be also configured by eNB.The SRS that eNB sends on certain frequency band by detection UE is known the channel quality status of this frequency band, gives on this basis UE dispatch frequency range resource.
Because PUCCH format1b form can only send 2bit information, when ACK and SR are multiplexing simultaneously, can only be sent on 1 code channel, so now ACK can only be rough to the mixed automatic retransfer request of four descending sub frames (Hybrid Automatic Repeat Request, referred to as HARQ) result carries out unified feedback, if only have a frame to merge unsuccessfully in four frames, also can only feed back NACK, four frames all need to retransmit, and cause meaningless repeating transmission, cause flow system flow degradation.
Summary of the invention
The invention provides processing method, eNB and the UE of a kind of SR, at least to solve in correlation technique, due to SR and ACK multiplexing, the code channel decreased number that ACK can be sent, cause feedback information inaccuracy, and then repeatedly retransmit descending sub frame, the problem of flow system flow degradation.
According to an aspect of the present invention, provide the processing method of a kind of SR, having comprised: eNB has judged whether SR multiplexing on SRS; Described eNB notifies judged result to UE.
Preferably, eNB judges whether on SRS, to comprise SR is multiplexing: described eNB judges according to current scheduling strategy whether SR transmits with correct/error response message ACK/NACK simultaneously; If so, definite that SR is multiplexing on SRS.
Preferably, eNB judges whether on SRS, to comprise SR is multiplexing: described eNB judges according to current scheduling strategy whether SRS transmits with correct/error response message ACK/NACK/SR simultaneously; If so, definite that SR is multiplexing on SRS.
Preferably, described method also comprises: if described eNB determines, SR is multiplexing on SRS, and notify described UE on SRS, to send SR is multiplexing; If it is or not SR is not multiplexing on SRS that described eNB determines, notify described UE that described SR is placed on fixing PUCCH channel and is sent.
According to another aspect of the present invention, also provide the processing method of a kind of SR, having comprised: UE has received the notice from eNB; Described UE determines whether SR multiplexing on SRS according to described notice.
Preferably, described UE carries out corresponding operation according to described judged result and comprises: if described in judgment result is that SR multiplexingly on SRS, described UE sends SR is multiplexing on SRS; If described in judgment result is that SR is not multiplexingly on SRS, described UE is placed on described SR on fixing PUCCH channel and sends.
According to a further aspect of the invention, provide a kind of eNB, having comprised: judge module, multiplexing at SRS for judging whether SR; Notification module, for notifying judged result to user equipment (UE).
Preferably, described notification module comprises: the first notification unit, and for determining SR multiplexingly on SRS in the situation that, notify described UE on SRS, to send SR is multiplexing; The second notification unit, for determining not SR multiplexingly on SRS in the situation that, notifies described UE that described SR is placed on fixing PUCCH channel and is sent.
In accordance with a further aspect of the present invention, provide a kind of UE, having comprised: receiver module, for receiving the notice from eNB; Determination module, for determining whether SR multiplexing at SRS according to described notice.
Preferably, described determination module comprises: the first performance element for judgment result is that SR multiplexingly on SRS in the situation that described, sends SR is multiplexing on SRS; The second performance element, for judgment result is that not SR multiplexingly on SRS in the situation that described, is placed on described SR on fixing PUCCH channel and sends.
It is multiplexing on SRS that the present invention has adopted following method: eNB to judge whether SR, and judged result is notified to UE.When judgement needs are multiplexing, determine and on SRS, send SR is multiplexing, solved due to SR and ACK multiplexing, the code channel decreased number that ACK can be sent, causes feedback information inaccuracy, and then repeatedly retransmits descending sub frame, the problem of flow system flow degradation, and then the method for the treatment of S R has been proposed, the method does not take ACK bit number, has well controlled flow system flow.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart one according to the processing method of the SR of the embodiment of the present invention;
Fig. 2 is according to the flowchart 2 of the processing method of the SR of the embodiment of the present invention;
Fig. 3 is the flow chart of the processing method of SR according to the preferred embodiment of the invention;
Fig. 4 is the structured flowchart one according to the eNB of the embodiment of the present invention;
Fig. 5 is the structured flowchart two according to the eNB of the embodiment of the present invention;
Fig. 6 is the structured flowchart one according to the UE of the embodiment of the present invention;
Fig. 7 is the structured flowchart two according to the UE of the embodiment of the present invention.
Embodiment
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
Based in correlation technique due to SR and ACK multiplexing, the bit number that ACK occupies is reduced, cause feedback information failure, and then repeatedly retransmit descending sub frame, the problem of flow system flow degradation, the embodiment of the present invention provides the processing method of a kind of SR, and this processing method is applied in LTE TDD system.Above-mentioned processing procedure as shown in Figure 1, comprises that step S102 is to step S104:
Step S102, eNB judges whether SR multiplexing on SRS;
Step S104, eNB notifies judged result to UE.
It is multiplexing on SRS that the present embodiment has adopted following method: eNB to judge whether SR, and judged result is notified to UE.When judgement needs are multiplexing, determine and on SRS, send SR is multiplexing, solved due to SR and ACK multiplexing, the code channel decreased number that ACK can be sent, causes feedback information inaccuracy, and then repeatedly retransmits descending sub frame, the problem of flow system flow degradation, and then the method for the treatment of S R has been proposed, the method does not take ACK bit number, has well controlled flow system flow.
In step S102 implementation process, eNB judges according to current scheduling strategy whether SR transmits with ACK/NACK simultaneously; If transmission simultaneously, determining can be multiplexing on SRS by SR; Certainly, also can judge according to current scheduling strategy whether SRS transmits with ACK/NACK/SR simultaneously; If transmission simultaneously, determining can be multiplexing on SRS by SR.
In implementation process, according to different definite result notice UE, carry out different operations.If eNB determines, and SR is multiplexing on SRS, notify UE on SRS, to send SR is multiplexing; If it is or not SR is not multiplexing on SRS that eNB determines, notify UE that SR is placed on fixing PUCCH channel and is sent.
UE by modulation technique by SR information be modulated on SRS, realize with the running time-frequency resource of SRS multiplexing.The process realizing can comprise:
Step 1: the SR information of UE and SRS ZC sequence and length thereof are input to modulator;
Step 2: the SRS ZC sequence of the SR information of having modulated UE is modulated and exported to modulator;
Step 3: the SRS ZC sequence of having modulated the SR information of UE is sent on the running time-frequency resource under the SRS of base station scheduling.
Processing method based on above-mentioned SR, the present embodiment also provides the processing method of a kind of dispatch request SR, and the method can be applied to UE side, and the flow process of the method as shown in Figure 2, comprises that step S202 is to step S204:
Step S202, UE receives the notice from eNB;
Step S204, UE determines whether SR multiplexing on SRS according to notice.
By above-mentioned processing method, UE carries out different operations according to the different content that receives notice.If judgment result is that SR multiplexingly on SRS, UE sends SR is multiplexing on SRS; If judgment result is that SR is not multiplexingly on SRS, UE is placed on SR on fixing PUCCH channel and sends.
Below eNB and the mutual process of UE are described.
Under normal conditions, eNB can distribute last symbol of common sub-frame of uplink to carry out transmitting SRS, and certainly, eNB also can distribute two symbols of special subframe to carry out transmitting SRS.
When eNB sets SRS and can transmit with ACK/NACK/SR simultaneously, the PUCCH form that can select transmission to shorten carrys out transferring ACK/NACK/SR, and in SR and the multiplexing situation of ACK, wherein the ACK/NACK/SR symbol of corresponding SRS position is struck off.If do not set, when SRS and other control or data collision, UE can not transmitting SRS.
If SR is modulated in the ZC sequence of SRS, eNB only need to dispatch SRS resource and without scheduling SR resource, can save this code channel resource and send with PUCCH format1b for ACK/NACK.Now, ACK/NACK with regard to do not need with SR carry out multiplexing, thereby avoid SR and the loss of the multiplexing HARQ of the causing feedback accuracy of ACK and the problem that causes flow to decline.Simultaneously, eNB is when frequency of utilization selectivity scheduling strategy, can require UE to send continually SRS, if SR is multiplexing on SRS, the situation that while on the one hand avoiding SRS to conflict with SR, UE must not transmitting SRS, thereby the demand that has met well UE transmission SRS, eNB obtains the uplink channel information of UE when receiving UE uplink bandwidth application on the other hand, has facilitated the scheduling of resource of eNB to UE.
In addition, in order to guarantee the multiplexing reliability on SRS of SR, eNB can also judge whether to need UE that SR is multiplexing on SRS in conjunction with SRS bandwidth and the current scheduling strategy of previously distributing to UE.
Below in conjunction with preferred embodiment, above-mentioned execution mode is described.
Preferred embodiment
This preferred embodiment is in UE and eNB reciprocal process, the step how SR processes, and this process comprises that step S302 is to step S314:
Step S302, UE accesses eNB.
Step S304, the UE that eNB is access distributes SRS cycle and bandwidth.
Step S306, eNB judges whether to allow UE that SR is multiplexing on SRS according to scheduling strategy.If needed, perform step S308, otherwise execution step S310.
Step S308, UE is multiplexing on SRS by SR for notice.Execution step S312.
Step S310, notice UE sends out SR on fixing PUCCH channel.Execution step S314.
Step S312, UE is multiplexing on SRS by SR according to the indication of eNB.
Step S314, UE sends out SR on fixing PUCCH channel according to the indication of eNB.
The embodiment of the present invention also provides a kind of eNB, and the structured flowchart of this eNB as shown in Figure 4, comprising: judge module 10, and multiplexing at SRS for judging whether SR; Notification module 20, with judge module 10 couplings, for judged result is notified to user equipment (UE).
Fig. 5 shows a kind of preferred eNB, and wherein, notification module 20 comprises: the first notification unit 202, and for determining SR multiplexingly on SRS in the situation that, notice UE sends SR is multiplexing on SRS; The second notification unit 204, for determining not SR multiplexingly on SRS in the situation that, notice UE is placed on SR on fixing PUCCH channel and sends.
Corresponding with above-mentioned eNB, the present embodiment also provides a kind of UE, and its structured flowchart as shown in Figure 6, comprising: receiver module 30, for receiving the notice from evolved base station eNB; Determination module 40, with receiver module 30 couplings, multiplexing at SRS for determining whether SR according to notice.
Fig. 7 shows a kind of preferred UE, and wherein, determination module 40 comprises: the first performance element 402 for judgment result is that SR multiplexingly on SRS in the situation that, sends SR is multiplexing on SRS; The second performance element 404, for judgment result is that not SR multiplexingly on SRS in the situation that, is placed on SR on fixing PUCCH channel and sends.
In the reciprocal process of above-mentioned eNB and UE, eNB judges whether need to be multiplexing by SR, and UE carries out corresponding operation according to the judged result of eNB, and then in the situation that needs are multiplexing, carry out multiplexingly, effectively controlled the flow of system.
As can be seen from the above description, the present invention has realized following technique effect:
It is multiplexing on SRS that the embodiment of the present invention has adopted following method: eNB to judge whether SR, and judged result is notified to UE.When judgement needs are multiplexing, determine and on SRS, send SR is multiplexing, solved due to SR and ACK multiplexing, the code channel decreased number that ACK can be sent, causes feedback information inaccuracy, and then repeatedly retransmit descending sub frame, the problem of flow system flow degradation, and then the method for the treatment of S R has been proposed, the method does not take ACK bit number, well control flow system flow, promoted the performance of system.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is 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 modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a processing method of dispatch request SR, is characterized in that, comprising:
Evolved base station eNB judges whether SR multiplexing on SRS;
Described eNB notifies judged result to user equipment (UE).
2. method according to claim 1, is characterized in that, eNB judges whether on SRS, to comprise SR is multiplexing:
Described eNB judges according to current scheduling strategy whether SR transmits with correct/error response message ACK/NACK simultaneously;
If so, definite that SR is multiplexing on SRS.
3. method according to claim 1, is characterized in that, eNB judges whether on SRS, to comprise SR is multiplexing:
Described eNB judges according to current scheduling strategy whether SRS transmits with correct/error response message ACK/NACK/SR simultaneously;
If so, definite that SR is multiplexing on SRS.
4. according to the method in any one of claims 1 to 3, it is characterized in that, described method also comprises:
If described eNB determines, and SR is multiplexing on SRS, notify described UE on SRS, to send SR is multiplexing;
If it is or not SR is not multiplexing on SRS that described eNB determines, notify described UE that described SR is placed on fixing PUCCH channel and is sent.
5. a processing method of dispatch request SR, is characterized in that, comprising:
User equipment (UE) receives the notice from evolved base station eNB;
Described UE determines whether SR multiplexing on SRS according to described notice.
6. method according to claim 5, is characterized in that, described UE carries out corresponding operation according to described judged result and comprises:
If described in judgment result is that SR multiplexingly on SRS, described UE sends SR is multiplexing on SRS;
If described in judgment result is that SR is not multiplexingly on SRS, described UE is placed on described SR on fixing PUCCH channel and sends.
7. an evolved base station eNB, is characterized in that, comprising:
Judge module, multiplexing at SRS for judging whether SR;
Notification module, for notifying judged result to user equipment (UE).
8. eNB according to claim 7, is characterized in that, described notification module comprises:
The first notification unit, for determining SR multiplexingly on SRS in the situation that, notifies described UE on SRS, to send SR is multiplexing;
The second notification unit, for determining not SR multiplexingly on SRS in the situation that, notifies described UE that described SR is placed on fixing PUCCH channel and is sent.
9. a user equipment (UE), is characterized in that, comprising:
Receiver module, for receiving the notice from evolved base station eNB;
Determination module, for determining whether SR multiplexing at SRS according to described notice.
10. UE according to claim 9, is characterized in that, described determination module comprises:
The first performance element for judgment result is that SR multiplexingly on SRS in the situation that described, sends SR is multiplexing on SRS;
The second performance element, for judgment result is that not SR multiplexingly on SRS in the situation that described, is placed on described SR on fixing PUCCH channel and sends.
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Cited By (8)
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| WO2018126363A1 (en) * | 2017-01-04 | 2018-07-12 | 广东欧珀移动通信有限公司 | Uplink transmission method, terminal, and network device |
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| CN110999151A (en) * | 2017-08-11 | 2020-04-10 | 中兴通讯股份有限公司 | Method and apparatus for resource allocation in wireless communications |
| US11497041B2 (en) | 2017-08-11 | 2022-11-08 | Zte Corporation | Method and apparatus for resource allocation in wireless communication |
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