CN107370572A - For the feedback method and device of transmitting uplink data - Google Patents

For the feedback method and device of transmitting uplink data Download PDF

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Publication number
CN107370572A
CN107370572A CN201610316850.1A CN201610316850A CN107370572A CN 107370572 A CN107370572 A CN 107370572A CN 201610316850 A CN201610316850 A CN 201610316850A CN 107370572 A CN107370572 A CN 107370572A
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China
Prior art keywords
feedback
transmitting uplink
enb
uplink data
channel
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CN201610316850.1A
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Chinese (zh)
Inventor
牟勤
刘柳
蒋惠玲
武田和晃
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NTT Docomo Inc
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NTT Docomo Inc
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Priority to CN201610316850.1A priority Critical patent/CN107370572A/en
Priority to PCT/CN2017/084146 priority patent/WO2017194000A1/en
Priority to JP2018555606A priority patent/JP6671762B2/en
Priority to CN201780022232.9A priority patent/CN109075916B/en
Publication of CN107370572A publication Critical patent/CN107370572A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

The invention provides the feedback method and device for transmitting uplink data.Used downlink resource when in the present invention, by determining to carry out being directed to the feedback of transmitting uplink data according to the channel condition information of user terminal.So, even if different user terminals takes identical ascending resource and carries out transmitting uplink data, user terminal can also be made a distinction when carrying out hybrid automatic repeat-request feedback, hybrid automatic repeat-request feedback is carried out using different downlink resources, so as to avoid the step-out of base station and user terminal during transmitting uplink data.

Description

For the feedback method and device of transmitting uplink data
Technical field
The present invention relates to wireless communication system, for the feedback side of transmitting uplink data more particularly in wireless communication system Method and related device.
Background technology
In today of forth generation mobile communication (4G) rapid development, the 5th third-generation mobile communication (5G) standard formulation is also put on Schedule.According to International Telecommunication Union (ITU) definition, 5G will possess the typical application scenarios of three major types：First, enhanced shifting Dynamic broadband (eMBB, Enhanced Mobile Broadband), intelligent terminal user online peak rate can under this scene To reach 10Gbps even 20Gbps, so as to support virtual reality, net cast and share and cloud access whenever and wherever possible Etc. the development of big bandwidth applications；Second, Internet of Things (mMTC, Massive Machine Type Communication) is connected greatly, This requires that the people of 5G network supports and the connection quantity of thing reach 1,000,000/square kilometre；Third, the super reliable communication of low time delay (uRLLC, Ultra Reliable and Low Latency Communication), it means that the time delay of 5G networks is reachable 1 millisecond, so as to promote the hair of the low time delay business such as intelligence manufacture, remote mechanical control, auxiliary driving and automatic Pilot Exhibition.
As it was previously stated, under the application scenarios of above-mentioned big connection Internet of Things, the people of 5G network supports and the connection quantity of thing Reach 1,000,000/square kilometre.In the case where the terminal of such magnanimity needs to access, up portfolio in 5G networks It will greatly increase.Accordingly, signaling consumption when base station carries out uplink scheduling in 5G networks will also greatly increase.Therefore, exist In 5G networks, how transmitting uplink data is carried out, be one of current study hotspot.
The content of the invention
The embodiment provides a kind of feedback method for transmitting uplink data, including：Receiving and demodulating After the upstream data that UE is sent, the channel shape of frequency, reference signal and the UE according to used in UE sends upstream data State parameter determines downlink resource shared during for the UE this transmitting uplink data feedbacks；And according to on the UE The demodulation result of row data, send and feed back to the UE on identified downlink resource.
Wherein, channel state parameter includes：UE Signal Interference and Noise Ratio, Reference Signal Received Power, channel quality refers to Show or the UE carries out used modulation coding mode during transmitting uplink data.
Above-mentioned determination downlink resource shared when being fed back for this transmitting uplink data of the UE includes：Match somebody with somebody Put the corresponding relation between more than one channel state parameter section and more than one resources bank；Wherein, it is one to provide above Source storehouse is the orthogonal resources bank by being divided to obtain by whole downlink resources for feedback；Receive what the UE was reported Channel status；Closed according to the channel state parameter section of the UE channel status reported and configuration is corresponding with resources bank System, determines resources bank corresponding to the UE；And frequency and reference signal according to used in the UE transmits upstream data It is determined that the position of downlink resource used in being fed back in resources bank corresponding to the UE.
Receiving the channel status that the UE is reported includes：Configure one above channel state parameter section with one with Corresponding relation between upper random access leader sequence group；According to the UE used targeting sequencings in the random access procedure Determine the targeting sequencing group belonging to the targeting sequencing；And according to one above channel state parameter section of configuration with Corresponding relation between more than one random access leader sequence group determines the channel status of the UE.
It is determined that shared downlink resource includes when this transmitting uplink data for the UE carries out HARQ feedback：Connect The channel status that the UE is reported is received, the channel status reported according to the UE is the modulation that UE is configured to transmitting uplink data Coded system MCS；And the downlink resource is determined according to equation below：
Or
Wherein,Represent the index for the physical mixed automatic re-transmission indicating channel PHICH groups being calculated；Generation The index of table orthogonal sequence in the PHICH groups；IPRB_RAIt is the minimum physics money that UE used during transmitting uplink data Source block；nRSIt is that UE carries out the RS that transmitting uplink data uses；Represent the sum of the PHICH groups of system configuration；Generation The available orthogonal sequence in a PHICH group of table system configuration；And the threshold value for the MCS that Tre is system configuration.
The embodiment provides a kind of feedback method for transmitting uplink data, including：Send upstream data Afterwards, frequency, reference signal and the channel state parameter of itself according to used in sending the upstream data determine base station eNB Shared downlink resource when being fed back for this transmitting uplink data；And it is determined that downlink resource on receive described in ENB is directed to the feedback of this transmitting uplink data, determines whether the eNB proper reception of the upstream data of this transmission.
Wherein, channel state parameter includes：UE Signal Interference and Noise Ratio, Reference Signal Received Power, channel quality refers to Show or the UE carries out used modulation coding mode during transmitting uplink data.
Determine that downlink resource shared when base station eNB is fed back for this transmitting uplink data includes：Configuration one Corresponding relation between individual above channel state parameter section and more than one resources bank；Wherein, one above resources bank It is the orthogonal resources bank by being divided to obtain by whole downlink resources for feedback；UE measures the channel shape of itself State, and by the measurement feedback of channel status to eNB；Upstream data is transmitted to the channel status after eNB, obtained according to measurement And itself channel state parameter section of configuration and the relation of resources bank, it is determined that the corresponding money certainly under current channel condition Source storehouse；Determine to be used in resources bank corresponding to itself according to frequency used in self transmission upstream data and reference signal Receive the position of the downlink resource of feedback.
The measurement feedback of channel status is included to eNB：Configure more than one channel state parameter section and one Corresponding relation between above random access leader sequence group；The channel status of itself obtained according to measurement determines that itself is carried out Used targeting sequencing group during Stochastic accessing；And targeting sequencing is selected to carry out at random in targeting sequencing group corresponding to itself Access.
Determine that downlink resource shared when base station eNB is fed back for this transmitting uplink data includes：UE is measured The channel status of itself, and by the measurement feedback of channel status to eNB；Receive eNB configurations is used for transmitting uplink data Modulation coding mode MCS；And transmission upstream data determines the downlink resource to after eNB according to equation below：
Or
Wherein,Represent the index for the physical mixed automatic re-transmission indicating channel PHICH groups being calculated；Generation The index of table orthogonal sequence in the PHICH groups；IPRB_RAIt is the minimum physics money that UE used during transmitting uplink data Source block；nRSIt is that UE carries out the RS that transmitting uplink data uses；Represent the sum of the PHICH groups of system configuration；Generation The available orthogonal sequence in a PHICH group of table system configuration；And the threshold value for the MCS that Tre is system configuration.
The embodiment provides a kind of base station, including：
Data reception module, for receiving and demodulating the upstream data of user terminal UE transmissions；
Feedback resources determining module, for according to the UE send upstream data used in frequency, reference signal and The channel state parameter of UE downlink resource shared when determining to be fed back for the UE this transmitting uplink data； And
Feedback module, the demodulation result for basis to the UE upstream datas, to institute on identified downlink resource State UE and send feedback.
Feedback resources determining module includes：
Dispensing unit, for configuring the corresponding pass between more than one channel state parameter section and more than one resources bank System；Wherein, one above resources bank is orthogonal by being divided to obtain by whole downlink resources for feedback Resources bank；
Status information receiving unit, the channel status reported for receiving the UE；
Resources bank determining unit, for the channel status reported according to the UE and the channel state parameter section of configuration With the corresponding relation of resources bank, resources bank corresponding to the UE is determined；And
Feedback resources determining unit, it is true for frequency and reference signal according to used in UE transmission upstream datas It is scheduled on the position of downlink resource used in being fed back in resources bank corresponding to the UE.
The embodiment provides a kind of user terminal, including：
Uplink module, for sending upstream data；
Second feedback resources determining module, for according to used in sending the upstream data frequency, reference signal with And the channel state parameter of itself determines downlink resource shared when base station is fed back for this transmitting uplink data；With And
Feedback reception module, for it is determined that downlink resource on receive the base station for this transmitting uplink data Feedback, determines whether the eNB proper reception of the upstream data of this transmission.
Second feedback resources determining module includes：
Second dispensing unit, for configuring pair between more than one channel state parameter section and more than one resources bank It should be related to；Wherein, one above resources bank is by being divided to obtain just by whole downlink resources for feedback The resources bank of friendship；
Channel status measuring unit, given for measuring the channel status of itself, and by the measurement feedback of channel status The base station；
Secondary resource storehouse determining unit, join for the channel status obtained according to measurement and the channel status itself configured The relation of number interval and resources bank, it is determined that the corresponding resources bank certainly under current channel condition；
Second feedback resources determining unit, for frequency and reference signal according to used in self transmission upstream data It is determined that it is used for the position for receiving the downlink resource of feedback in resources bank corresponding to itself.
In an embodiment of the present invention, it is determined that fed back downlink resource when except considering UE transmission upstream data institute Outside the frequency and reference signal that use, UE channel condition information is further accounted for, different channels state is distinguished so as to reach UE purpose, it is possible to prevente effectively from eNB and UE step-out.
Brief description of the drawings
Fig. 1 shows in an embodiment of the present invention, the process that eNB is fed back after UE upstream datas are received；
Fig. 2 shows that in an embodiment of the present invention UE receives the process of feedback after upstream data is sent；
Fig. 3 shows a kind of collocation method of resources bank described in the embodiment of the present invention；
Fig. 4 shows the method that the UE described in the embodiment of the present invention receives transmitting uplink data feedback；
Fig. 5 shows the method that the eNB described in the embodiment of the present invention carries out transmitting uplink data feedback；
Fig. 6 shows the method that the UE described in the embodiment of the present invention receives transmitting uplink data feedback；
Fig. 7 shows the method that the eNB described in the embodiment of the present invention carries out transmitting uplink data feedback；
Fig. 8 shows a kind of example of this DCI structures for HARQ feedback；
Fig. 9 shows the example that HARQ feedback is carried out using DCI；
Figure 10 shows the example that HARQ feedback is carried out using DCI；
Figure 11 shows a kind of example of the DCI structures for HARQ feedback；
Figure 12 shows the example that HARQ feedback is carried out using DCI；
Figure 13 shows the structure of eNB in one embodiment of the invention；
Figure 14 shows the structure of UE in one embodiment of the invention；
Figure 15 shows the structure of eNB in one embodiment of the invention；And
Figure 16 shows the structure of UE in one embodiment of the invention.
Embodiment
As it was previously stated, under the application scenarios of connection Internet of Things greatly, the upstream traffic of 5G networks will greatly increase, relatively Ying Di, signaling consumption when base station carries out uplink scheduling will also greatly increase.Therefore, how upstream data is carried out in 5G networks Transmission, it has also become current study hotspot technology.
In traditional Long Term Evolution (LTE) system, base station (eNB) is needed in upstream scheduling process and user terminal (UE) following Signalling exchange is carried out.
First, UE is established by random access procedure and eNB and connected；Hereafter, need transmit upstream data when, UE to ENB sends dispatch request (SR), and request eNB distributes ascending resource for it；Next, feelings of the eNB according to UE requested resources Condition, according to certain dispatching principle, corresponding ascending resource is distributed, including：Uplink time/frequency source, reference signal (RS) and modulation Coded system (MCS) etc.；Then, eNB is notified the ascending resource for distributing to the UE by uplink scheduling authorization (UL GRANT) UE；Then, upstream data is transmitted on the ascending resource that UE will distribute in eNB.
It is can be seen that by the scheduling and transmitting procedure of above-mentioned upstream data in traditional LTE system, UE will received Upstream data could be transmitted after to uplink scheduling authorization (UL GRANT).So, if the application of the big connection Internet of Things in 5G Still along in such a way under scene, with the surge of upstream traffic, the expense of signaling will become very huge, so as to Carry out huge burden to 5G Netowrk tapes.
It is such in order to solve the problems, such as, many enterprises and research institution have been proposed some issued without base station it is up The new uplink scheme based on competition of scheduling authorization.In such uplink scheme based on competition, UE with After eNB establishes connection by random access procedure, eNB can be configured to transmit the ascending resource storehouse of upstream data to UE And selectable MCS set.UE will select from the ascending resource storehouse of eNB configurations first when there is upstream data to need transmission Suitable uplink time/frequency source and RS are selected, while MCS is determined in selectable MSC set.So as to directly use certainly The ascending resource and MCS that oneself selection determines carry out transmitting uplink data, and uplink scheduling authorization is issued without eNB.It will be apparent that If transmission plan as using, the expense of signaling can be greatly reduced, so as to greatly reduce the burden of network.But this Kind in the case of, different UE may simultaneous selection identical ascending resource carry out uplink, consequently, it is possible to occur it is up Collision between data.Therefore, in this uplink scheme based on competition, after eNB receives upstream data such as The feedback what carries out upstream data turns into and one of needs to solve the problems, such as.
It is to be completed by mixed automatic retransfer (HARQ) mechanism for the anti-of transmitting uplink data in traditional LTE system Feedback.Specifically, eNB is that frequency and RS according to used in UE transmits upstream data determine eNB to UE upstream datas Transmission carries out the position of the downlink resource of HARQ feedback.But if continue to use tradition in the uplink scheme based on competition The HARQ scheme of LTE system, it is possible to the situation of eNB and UE step-outs can be brought.
Specifically, it is assumed that UE1 and UE2 simultaneous selections identical frequency f1 and identical reference signal RS1 transmission Upstream data, and the Signal Interference and Noise Ratio (SINR) of UE1 signals will be substantially better than the SINR of UE2 signals.In this case, From the point of view of eNB sides, even if UE1 data and UE2 data are collided, eNB generally also can correctly demodulate the up of UE1 Data (interference that UE2 is brought is small), but can not correctly demodulate UE2 upstream data.In this case, eNB only knows UE1 have sent upstream data, and be not aware that UE2 also have sent upstream data on the same resource, therefore, according to tradition LTE HARQ feedback scheme, eNB can according to UE1 transmit upstream data used in frequency f1 and reference signal RS1 determine into The downlink resource position of row HARQ feedback, and feedback acknowledgment receives (ACK) on the resource location.However, from the point of view of end side, UE1 can be used with eNB identicals method according to frequency f1 and the reference itself used after frequency f1 have sent upstream data Signal RS1 determines that eNB carries out the position of the downlink resource of HARQ feedback, and receives HARQ feedback on the position, finally gives The ACK of eNB feedbacks, confirms that the upstream data eNB of self transmission has been properly received.Equally, UE2 line numbers in frequency f1 transmission According to rear, it can also use and determine that eNB is carried out according to frequency f1 and the reference signal RS1 itself used with eNB identicals method The position of the downlink resource of HARQ feedback, and HARQ feedback is also received on the position, the ACK of eNB feedbacks is also finally given, And the upstream data eNB of error check self transmission has been properly received, without carrying out data re-transmission.It can thus be seen that In such a scenario, occurs step-out between eNB and UE2, i.e. eNB does not receive UE2 upstream data, but UE2 thinks eNB It that correctly received the upstream data of oneself.Under similar circumstances, if UE1 and UE2 channel status is similar, due to two Interference between UE is very big, and usual eNB will not have correctly received any one UE upstream data, thus, in corresponding HARQ During feedback, DTX/NACK will be fed back.Downlink resource position same two UE, will all detect DTX/NACK, so as to all distinguish Carry out data re-transmission.
Therefore, the embodiment provides the feedback method for transmitting uplink data, can be based on competition The feedback of the transmitting uplink data for UE is realized in ascending transmission method.The big connection Internet of Things that this method may be used on 5G should With in scene.
In an embodiment of the present invention, eNB can pass through physical mixed automatic re-transmission indicating channel (PHICH, Physical Hybrid ARQ Indicator Channel) carry out HARQ feedback, and it is determined that carrying PHICH downlink resource (really Determine eNB and be directed to downlink resource shared during UE transmitting uplink data progress HARQ feedback) when, except considering that UE transmission is up Outside frequency used in data and reference signal, the parameter relevant with UE channel status can also be further considered, such as UE SINR, Reference Signal Received Power (RSRP), channel quality instruction (CQI) or UE used during transmitting uplink data MCS etc. can characterize the parameter of UE channel status.So, even if more than two UE select identical ascending resource and used Identical reference signal sends upstream data, once these UE channel status is variant, then eNB can be used different descending Resource carries out HARQ feedback to these UE transmitting uplink data respectively, so as to effectively avoid the step-out between eNB and UE.
Specifically, Fig. 1 is shown in an embodiment of the present invention, what eNB was fed back after UE upstream datas are received Process.Fig. 2 shows that in an embodiment of the present invention UE receives the process of feedback after upstream data is sent.
As shown in figure 1, eNB after detecting and demodulating the upstream data of UE transmissions, will perform following operation：
Step 101：The channel state parameter of frequency, reference signal and the UE according to used in UE sends upstream data It is determined that the downlink resource that this transmitting uplink data for the UE is shared when being fed back.
Channel state parameter in this step can be that UE SINR, RSRP, CQI or UE carry out transmitting uplink data when institute MCS used etc. can characterize the parameter of channel status.
The feedback for transmitting uplink data described in this step can be HARQ feedback.
Step 102：According to the demodulation result to received UE upstream datas, passed on identified downlink resource to the UE Defeated corresponding feedback.
For example, when correct demodulation obtains the upstream data of the UE, can it is determined that downlink resource on by PHICH to The UE feedback acknowledgments (ACK)；And it is transferred to the upstream data of the UE in no solution or can not correctly demodulates the upstream data of the UE When, can it is determined that downlink resource on by PHICH to the UE feed back non-acknowledgement (DTX or NACK).
Accordingly, as shown in Fig. 2 after UE have sent upstream data on the ascending resource that itself is selected, will perform Following operation：
Step 201：Frequency, reference signal and the channel status ginseng of itself according to used in sending this upstream data Number determines downlink resource shared when eNB is fed back for this transmitting uplink data.
It should be noted that for keep eNB and UE between synchronization, in this step, UE according to send this on line number Determine that eNB is carried out for this transmitting uplink data according to used frequency, reference signal and the channel state parameter of itself The method of the shared downlink resource of feedback should be consistent with method used in eNB in Fig. 1.
The feedback for transmitting uplink data described in this step can be HARQ feedback.
Step 202：It is determined that downlink resource on receive eNB be directed to this transmitting uplink data feedback, determine that eNB is The no upstream data that proper reception of this transmission.
If for example, it is determined that downlink resource on receive ACK, illustrate eNB be properly received this transmission it is up Data；And if it is determined that downlink resource on receive DTX or NACK, or do not detect ACK, then illustrate eNB not into Work(receives the upstream data of this transmission, thus needs to carry out data re-transmission.
In the application of reality, in above-mentioned steps 101 and 201, eNB and UE can be determined to carry out by a variety of methods The downlink resource of feedback.It will respectively be illustrated and be described in detail exemplified by carrying out HARQ feedback for transmitting uplink data below.
In one embodiment of the invention, whole downlink resources for HARQ feedback can be divided into advance multiple Orthogonal resources bank, and the UE with different channels state is mapped in different resources banks.That is, it is directed to different letters The UE of road state, eNB will carry out HARQ feedback using the downlink resource in different resource storehouse, so as to avoid due to different letters Step-outs of the UE of road state caused by using identical downlink resource progress HARQ feedback between eNB and UE.
Specifically, the UE with different channels state can be mapped to by the method that is illustrated in fig. 3 shown below different In resources bank.Fig. 3 shows a kind of collocation method of resources bank.As shown in figure 3, this method includes：
Step 301, whole downlink resources for HARQ feedback are divided into N groups, obtain N number of resources bank.
Wherein, N is the natural number more than 1.This N number of resources bank does not occur simultaneously, and that is to say orthogonal.
Step 302, the valued space for the channel state parameter for characterizing UE channel status is divided into N number of continuous section.
As it was previously stated, in this example, the parameter of above-mentioned sign UE channel status can be RSRP, SINR that UE measurements obtain Or used MCS etc. during UE uplink transmission datas.The set in this N number of section is the value of above-mentioned channel state parameter Space, and this N number of section is also not occur simultaneously, and be that is to say orthogonal.
Step 303, N number of resources bank and N number of channel state parameter section are corresponded.
It is to complete the mapping between resources bank and channel state parameter by above-mentioned steps, subsequent can will have The UE of different channels state is mapped in different resources banks.
Step 304, after above-mentioned mapping is completed, above-mentioned N number of resources bank and N number of channel status ginseng are configured at eNB and UE The mapping relations of number interval.
Hereafter, the resources bank that UE cans determine itself to use according to the channel status of itself.Similarly, eNB can also root The resources bank that uses when determining to carry out HARQ feedback for the UE according to its channel status of UE feedbacks, so as to by different SINR UE It is mapped to different resources banks.
For example, by above-mentioned resources bank collocation method, can be divided into the downlink resource for HARQ feedback orthogonal does not have Two groups to occur simultaneously, including resources bank 1 and resources bank 2.At the same time, a SINR thresholding th1 is set, SINR is more than or equal to Th1 section is corresponding with resources bank 1 as section 1；It is and SINR is corresponding with resources bank 2 as section 2 less than th1 section. So as to complete the mapping of resources bank 1 --- mapping and resources bank 2 between section 1 --- between section 2.By such right Should, it will carry out HARQ feedback using resources bank 1 for UEs of the SINR more than or equal to th1, eNB；And for SINR less than th1's UE, eNB will carry out HARQ feedback using resources bank 2.
After resources bank configuration is completed, in UE sides, UE can complete to be directed to upstream data by process as shown in Figure 4 Transmit the reception of feedback.In eNB sides, eNB can complete the feedback for transmitting uplink data by process as shown in Figure 5.
The reception transmitting uplink data feedback procedure of UE shown in Fig. 4 includes：
Step 401, UE measures the channel status of itself.
In this step, UE can obtain the channel status of itself by measuring RSRP, SINR or CQI.
Step 402, UE by the measurement feedback of channel status to eNB.
In this step, UE can be anti-by the result of channel measurement by existing various channel measurement feedback methods Feed eNB.
Step 403, UE transmits upstream data to the channel status that after eNB, UE obtains according to measurement and itself configured Channel state parameter section and the relation of resources bank, it is determined that the corresponding resources bank certainly under current channel condition；
In this step, UE can use the transmitting uplink data scheme transmission upstream data based on competition, namely in eNB Suitable ascending resource is selected in the ascending resource storehouse of configuration, then transmits upstream data on selected ascending resource.
Step 404, UE frequency and reference signal according to used in self transmission upstream data determines corresponding at itself Resources bank in be used for receive HARQ feedback downlink resource position；
Specifically, in this step, UE can be determined to use in resources bank corresponding to itself according to formula below (1) In the position for the downlink resource for receiving HARQ feedback：
Wherein,Represent the index for physical mixed automatic re-transmission indicating channel (PHICH) group being calculated； Represent the index of the orthogonal sequence in the PHICH groups；IPRB_RAIt is the minimum physics that UE used during transmitting uplink data Resource block；nRSIt is that UE carries out the RS that transmitting uplink data uses；Represent the sum of the PHICH groups of system configuration；Represent the available orthogonal sequence in a PHICH group of system configuration.
By above-mentioned steps 401-404, UE can determine that eNB carries out HARQ feedback for itself this uplink Downlink resource.
Step 405, UE it is determined that itself corresponding resources bank in be used for the opening position that receives the downlink resource of HARQ feedback Receive the HARQ feedback from eNB.
After the HARQ feedback from eNB is received, UE can determine whether eNB proper reception of the up of this transmission Data, so as to judge whether to need to retransmit.
The process that eNB shown in Fig. 5 receives transmitting uplink data feedback includes：
Step 501, eNB receives the channel status for the UE that UE is reported；
Step 502, eNB receives the upstream data that UE is sent, and after being demodulated, according to the UE UE reported channel status And itself channel state parameter section of configuration and the relation of resources bank, determine resources bank corresponding to the UE；
Step 503, eNB frequency and reference signal according to used in UE transmits upstream data is determined corresponding in the UE The position of downlink resource used in HARQ feedback is carried out in resources bank；
In this step, eNB will also determine to carry out HARQ feedback in resources bank corresponding to the UE by above-mentioned formula (1) The position of used downlink resource.
And by above-mentioned steps 501-503, eNB is that can determine that the uplink for the UE carries out the descending of HARQ feedback Resource.
Step 504, eNB it is determined that the UE corresponding to HARQ feedback is carried out in resources bank the opening position of downlink resource enter Row HARQ feedback.
For example, in the example above, by resources bank collocation method, the downlink resource for HARQ feedback is divided into just Hand over without two groups to occur simultaneously, including resources bank 1 and resources bank 2.At the same time, a SINR thresholding th1 is set, SINR is more than It is corresponding with resources bank 1 or the section equal to th1 is as section 1；And using sections of the SINR less than th1 as section 2 and resources bank 2 correspondences.So as to complete the mapping of resources bank 1 --- mapping and resources bank 2 between section 1 --- between section 2.This In the case of, if two UE, UE1 and UE2 send upstream data with identical frequency and PS, if UE1 SINR is more than Th1, and UE2 SINR is less than th1, then UE1 will be mapped onto resources bank 1, and UE2 will be mapped onto resources bank 2.By so Mapping, even if the position of the downlink resource for the HARQ feedback for UE1 and UE2 being calculated by above-mentioned formula (1) Result of calculation is identical, but because UE1 and UE2 correspond to different resources banks, therefore, actually eNB is under different HARQ feedback is carried out to UE1 and UE2 transmitting uplink data in row resource；Two UE are also to be examined on different downlink resources Chaining pin is to the HARQ feedback of itself.
Reality application in, UE can by way of display directly by the measurement feedback of channel status to eNB. In addition, UE can also by way of recessive by the measurement feedback of channel status to eNB.A UE is presented below to pass through Recessive mode is by example of the measurement feedback of channel status to eNB.
In this example, except by for the valued space of whole downlink resources of HARQ feedback and channel state parameter point Into outside N groups, the targeting sequencing used when also UE further being carried out into Stochastic accessing is divided into N groups, so as to obtain the leading sequence of N groups Row.Also need to correspond N number of resources bank, N number of channel state parameter section and N groups targeting sequencing simultaneously.So as to complete resource Mapping between storehouse, targeting sequencing and channel state parameter.Also, after above-mentioned mapping is carried out, it will match somebody with somebody at eNB and UE Put the mapping relations of above-mentioned N number of resources bank, N number of targeting sequencing group and N number of channel state parameter section.
Next, carry out signal measurement in UE, after the channel status for determining itself, will according to channel state parameter section with Corresponding relation between targeting sequencing group determines itself to carry out used targeting sequencing group during Stochastic accessing, and is corresponded at itself Targeting sequencing group in select targeting sequencing carry out Stochastic accessing.Then, UE will believe after upstream data is transmitted with itself The HARQ feedback that eNB is directed to itself transmitting uplink data is received on downlink resource in resources bank corresponding to road state.It is corresponding Ground, eNB also by turn according to UE in the random access procedure used targeting sequencing determine the targeting sequencing belonging to before Sequence group is led, so that used resources bank when being determined according to mapping relations for UE progress HARQ feedbacks.
For example, in above process, the downlink resource for HARQ feedback can be divided into two groups, including the He of resources bank 1 Resources bank 2.The targeting sequencing used when UE is carried out into Stochastic accessing is also divided into 2 groups, obtains targeting sequencing group 1 and targeting sequencing group 2.Then, it is resources bank 1 is corresponding with targeting sequencing group 1；It is and resources bank 2 is corresponding with targeting sequencing 2.At the same time, one is set Individual SINR thresholdings th1, it is corresponding with resources bank 1 using sections of the SINR more than or equal to th1 as section 1；And SINR is less than Th1 section is corresponding with resources bank 2 as section 2.So as to complete resources bank 1 --- targeting sequencing group 1 --- between section 1 Mapping and the mapping of resources bank 2 --- targeting sequencing group 2 --- between section 2.From the point of view of UE sides, channel status falls into section When 1, Stochastic accessing will be carried out using the targeting sequencing in targeting sequencing group 1, and received on the downlink resource in resources bank 1 HARQ feedback；When channel status falls into section 2, Stochastic accessing will be carried out using the targeting sequencing in targeting sequencing group 2, and providing HARQ feedback is received on downlink resource in source storehouse 2.Accordingly, from the point of view of eNB sides, if a UE uses targeting sequencing group Targeting sequencing in 1 carries out Stochastic accessing, then will carry out HARQ feedback using the downlink resource in resources bank 1 for the UE；Such as One UE of fruit uses the targeting sequencing in targeting sequencing group 2 to carry out Stochastic accessing, then under being used for the UE in resources bank 2 Row resource carries out HARQ feedback.
As simplification, eNB sides can only configure the mapping relations of N number of resources bank and N number of targeting sequencing group, without record With the mapping relations in N number of channel state parameter section.So as to after UE random access request is received, can directly determine Resources bank corresponding to the UE.
Above-mentioned Fig. 3-Fig. 5 gives eNB and UE and determines to carry out a kind of method of the downlink resource of HARQ feedback.In the party In method, by the way that whole downlink resources for HARQ feedback are divided into multiple orthogonal resources banks, and there will be different channels The UE of state is mapped in different resources banks.So as to realize the UE for different channels state, using in different resource storehouse Downlink resource carries out HARQ feedback.From the example above it can also be seen that this method is it is possible to prevente effectively between eNB and UE Step-out.
ENB and UE will be provided by specific example below to determine to carry out the another kind side of the downlink resource of HARQ feedback Method.In this example, without being divided to the downlink resource for HARQ feedback, namely for all UE all using under same Row resources bank carries out HARQ feedback.
Fig. 6 shown in the embodiment of the present invention, the method that UE receives the feedback for transmitting uplink data.As shown in fig. 6, This method includes：
Step 601, UE determines the channel status of itself.
Above-mentioned channel condition information can include RSRP, CQI, SINR etc..In this case, UE can pass through channel Measurement directly obtains the channel status of itself.
In addition, it is used MCS that above-mentioned channel status, which can also be UE progress transmitting uplink datas,.In such case Under, UE needs to carry out channel measurement first, and to eNB reporting channel measurement results.Then, the channel that eNB can report according to UE Measurement result is that the suitable MCS of UE configurations is used for follow-up transmitting uplink data.Now, UE can determine that eNB is subsequent upstream The MCS that data transfer is configured.
Step 602, UE transmits upstream data to after eNB, is made according to the channel status of itself, self transmission upstream data Frequency and reference signal determine to receive the position of the downlink resource of HARQ feedback.
For example, in the case where the UE that above-mentioned channel status is eNB configurations transmits the MCS of upstream data, in this step, UE can determine to receive the position of the downlink resource of HARQ feedback by formula below (2) or (3)：
Wherein,Represent the index for the physical mixed automatic re-transmission indicating channel PHICH groups being calculated；Generation The index of table orthogonal sequence in the PHICH groups；IPRB_RAIt is the minimum physics money that UE used during transmitting uplink data Source block；nRSIt is that UE carries out the RS that transmitting uplink data uses；Represent the sum of the PHICH groups of system configuration；Generation The available orthogonal sequence in a PHICH group of table system configuration；And the threshold value for the MCS that Tre is system configuration.
Step 603, UE it is determined that downlink resource opening position receive eNB HARQ feedback.
After the HARQ feedback from eNB is received, UE can determine whether eNB proper reception of the up of this transmission Data, so as to judge whether to need to retransmit.
Fig. 7 shown in the embodiment of the present invention, the method that eNB carries out transmitting uplink data feedback.As shown in fig. 7, the party Method includes：
Step 701, eNB determines UE channel status.
In this step, above-mentioned channel status can include UE RSRP, CQI, SINR etc..In this case, UE exists It can be reported after measuring the channel state parameter of itself.ENB determines UE letter by receiving the channel state parameter that UE is reported Road state.
In addition, above-mentioned channel status can also be that UE carries out the MCS used during transmitting uplink data.In this case, ENB can receive the channel measurement that UE is reported first, then according further to the UE received channel measurement It is used for follow-up transmitting uplink data for the suitable MCS of user configuration.
Step 702, after eNB receives the upstream data that UE is sent and is demodulated, according in UE channel status, UE transmission Frequency used in row data and reference signal determine to carry out the position of downlink resource used in HARQ feedback for the UE；
For example, in the case where the UE that above-mentioned channel status is eNB configurations transmits the MCS of upstream data, in this step, ENB can determine to carry out the position of downlink resource used in HARQ feedback for the UE by above-mentioned formula (2) or (3).
Step 703, eNB it is determined that downlink resource opening position carry out HARQ feedback.
Although it can be seen that from the method shown in above-mentioned Fig. 6 and Fig. 7 and all use same downlink resource storehouse for all UE Carry out HARQ feedback, but it is determined that specific HARQ feedback position when except with UE transmission upstream datas used in frequency It is also directly relevant with UE channel state parameter and reference signal has outside the Pass.Therefore, even if more than two UE are using identical Frequency and RS transmission upstream data, when carrying out HARQ feedback, eNB can also be according to the channel shape of the UE more than the two State makes a distinction to the UE more than the two, avoids multiple UE from taking same downlink resource and carries out HARQ feedback, so as to cause The situation of eNB and UE step-out.
In embodiment above, regardless of whether being grouped to the downlink resource for carrying out HARQ feedback, eNB passes through PHICH carries out HARQ feedback, simply it is determined that carrying PHICH downlink resource when except considering UE transmission upstream datas institute Outside the frequency and reference signal that use, UE channel condition information is further accounted for, different channels state is distinguished so as to reach UE purpose, effectively avoid eNB and UE step-out.
In addition to the above described embodiments, embodiments of the invention additionally provide the feedback that other are directed to UE transmitting uplink datas Scheme.These methods will be described in detail by example below.
In the method for the embodiment of the present invention, it will design a kind of new (such as anti-for carrying out HARQ dedicated for feedback Feedback) Downlink Control Information (DCI, Downlink Control Information).ENB will be by this dedicated for feedback DCI carry out feedback for transmitting uplink data, such as HARQ feedback.
Fig. 8 shows a kind of example of this DCI structures dedicated for HARQ feedback.
From figure 8, it is seen that this include dedicated for the DCI of HARQ feedback：More than one HARQ fields and one Individual identification field.Above-mentioned HARQ fields are used for the HARQ feedback for carrying certain uplink for some UE.Specifically, each HARQ fields can identify HARQ feedback with 1 binary bits, for example, identifying ACK with " 1 ", and be identified with " 0 " NACK/DTX.Certainly, ACK is identified with " 0 " in turn, it is also possible identifies NACK/DTX with " 1 ".ENB and UE are advance Arrange and configured the declaration of will of each field value.Above-mentioned identification field is used to carry HARQ words more than said one CRC (CRC) value of section and HARQ Radio Network Temporary Identifier (RNTI, Radio Network Temporary Identifier), it is a DCI and use for being used for HARQ feedback that above-mentioned RNTI, which is mainly used in identifying this DCI, In identify the DCI be for which or which group UE HARQ feedback DCI.
In one embodiment of the invention, what each HARQ fields in the DCI shown in above-mentioned Fig. 8 carried respectively is pin To the HARQ feedback of each UE in a UE group.In the present embodiment, it is necessary first to UE is grouped, and after being grouped, ENB can be one RNTI of each UE packet distribution.Between different UE packets, made a distinction using different RNTI.Obtaining Also to be the HARQ fields that each UE is distributed in an above-mentioned DCI for being used to feed back in the packet after UE packets, it is corresponding as it HARQ fields.Specifically, UE can be grouped according to UE channel condition information, by the similar user of channel status It is divided into one group.For example, being a UE by UE similar in 10 channel status points, and allocation identification RNTI1 is grouped for the UE.Together When, for comprising at least 10 HARQ fields in the DCI of feedback, a HARQ field is further distributed respectively for this 10 UE, Determine which HARQ field this 10 UE correspond to respectively.So, after UE carries out transmitting uplink data, eNB can be received and issued Be used for feed back DCI.Receive be identified as RNTI1 DCI after may know that the DCI is destined to the DCI of itself, so Afterwards, then feedbacks of the eNB for itself transmitting uplink data is being received corresponding to itself in HARQ fields, is determining whether eNB is correct The upstream data of self transmission is have received, determines whether to need to carry out data re-transmission.
For base station side, once it is determined that HARQ fields corresponding to each UE in UE packet and packet, then eNB can With according to each UE upper line number in UE packets received within a period of time (in the time window that a system is set) According to the value for determining each HARQ fields in this UE packets, the DCI of user feedback is generated, and pass through Physical Downlink Control Channel (PDCCH) DCI is carried to complete to be directed to the HARQ feedback of each UE in UE packets.In the present embodiment, as it was previously stated, can be with It is the HARQ feedback for which UE packet to identify this DCI by the RNTI in identification field.
Fig. 9 shows the example that HARQ feedback is carried out using DCI.In the example of figure 9, the UE packet include UE1, Tri- UE of UE2 and UE3, and in a time window, three users have transmission upstream data.ENB can correctly demodulate UE1 and UE3 data, but UE2 data can not be correctly demodulated, therefore, the DCI's for HARQ feedback being grouped for the UE HARQ fields, eNB will feed back " 1 ", " 0 ", " 1 " (" 1 " identifies ACK, " 0 " mark NACK/DTX), while using in identification field The RNTI of carrying identifies the DCI and is destined to UE packets.HARQ fields corresponding to UE1 are first character section, therefore, UE1 It will can determine whether that eNB successfully have received the upstream data of self transmission after DCI is received.Similarly, HARQ corresponding to UE3 Field is the 3rd field, and therefore, UE3 will can determine whether that eNB successfully have received the upper of self transmission after DCI is received Row data.And HARQ fields corresponding to UE2 are second fields, therefore, UE2 will can determine whether after DCI is received eNB not into The upstream data that have received self transmission of work(, so as to be retransmitted.
In another embodiment of the present invention, each HARQ fields carrying in above-mentioned DCI is to be directed to same UE The multiple HARQ feedback of transmitting uplink data (in the time window that system is set) within a period of time.In the present embodiment, It is the HARQ feedback for which UE that this DCI can be identified by the RNTI in identification field.In this way, for base station side, eNB It can be determined according to being received within a period of time (in the time window that a system is set) from more upstream datas of a UE The value of each HARQ fields, generates the DCI of user feedback in the DCI of the user feedback, and passes through Physical Downlink Control Channel (PDCCH) DCI is carried to complete to be directed to the HARQ feedback of the UE.In the present embodiment, as it was previously stated, identification field can be passed through In RNTI to identify this DCI be the HARQ feedback for which UE.And UE will be monitored and received after upstream data is transmitted several times For the DCI for being used to feed back of oneself, and each HARQ fields in the DCI for being used to feed back according to this determine whether eNB is correct It has received the upstream data itself being transmitted several times.
Figure 10 shows the example that HARQ feedback is carried out using DCI.In Figure 10 example, UE1 is in a period of time 4 upstream datas are inside transmitted altogether.ENB can correctly demodulate the upstream data of the 1st~3 transmission, but can not correctly demodulate The upstream data of the 4th transmission, therefore, in the HARQ fields of the DCI dedicated for HARQ feedback for UE1, eNB will feed back " 1 ", " 1 ", " 1 ", " 0 " (" 1 " identifies ACK, " 0 " mark NACK/DTX), while identified using the RNTI carried in identification field The DCI is destined to the UE's.UE1 will be according to HARQ after receiving for the DCI dedicated for HARQ feedback of itself Field determines that eNB successfully have received the upstream data of the 1st~3 transmission, but can not correctly demodulate the 4th transmission Upstream data, so as to which the upstream data of the 4th transmission can be retransmitted.
In the above-described embodiments, eNB directly carries out HARQ feedback by the above-mentioned DCI for HARQ feedback.As upper A kind of deformation of embodiment is stated, the DCI of other structures can also be designed to complete HARQ feedback.
Figure 11 shows a kind of example of the DCI structures for HARQ feedback.As shown in figure 11, this DCI includes one Identification field, the DCI of HARQ feedback itself is used exclusively for for identifying.This DCI also includes a HARQ field, the field A physical down data channel is pointed to, for example, a Physical Downlink Shared Channel (PDSCH).Believe in the physical down data In road, the UE corresponding to upstream data that carrying eNB has been properly received within a period of time is identified.So, UE is being transmitted After upstream data, it is possible to monitor the above-mentioned DCI for HARQ feedback, determined according to HARQ fields therein in the DCI The physical down data channel that HARQ is pointed to.The physical down data channel is monitored again, is received the physical down data channel and is held The data of load, judge whether identified in the data of the transmission comprising the UE of itself.If so, then illustrate that eNB correctly connects The upstream data of itself is received.If not having to identify comprising the UE of itself in the data of the physical down data channel, illustrate ENB is not properly received the upstream data of itself, so as to need to retransmit upstream data.
Figure 12 shows the example that HARQ feedback is carried out using DCI.In the illustration in fig 12, UE1, UE2 and UE3 Three UE are transmitting upstream data for a period of time.ENB can correctly demodulate the upstream data of UE1 and UE3 transmission, but not The upstream data of UE2 transmission can be correctly demodulated, therefore, pointed by the HARQ fields in the DCI dedicated for HARQ feedback The UE for only including UE1 and UE3 is identified in PDSCH, and the UE not comprising UE2 is identified.UE1, UE2 and UE3 are on transmitting The DCI dedicated for HARQ feedback will be monitored after row data, listening to the HARQ fields of the DCI dedicated for HARQ feedback The PDSCH of DCI sensings will be redirected to afterwards, receive the data of the PDSCH.UE1 and UE3 can be detected in the PDSCH Identified to the UE of itself, may thereby determine that eNB successfully have received the upstream data of self transmission, but UE2 is at this The UE marks of itself are not detected in PDSCH, may thereby determine that eNB can not correctly demodulate the upstream data of self transmission, So as to retransmit.
In the above-described embodiments, by the DCI designed for feedback, eNB can be each progress transmitting uplink data UE is fed back respectively, thus is not in that two or more UE takes the situation that identical downlink resource is fed back, so as to Effectively avoid the situation of eNB and UE step-outs.
Corresponding with above-mentioned uplink data transmission method, embodiments of the invention additionally provide the eNB for realizing the above method And UE.ENB and UE structure will be specifically described below.
Figure 13 shows the structure of eNB in one embodiment of the invention.As shown in figure 13, the eNB includes：
Data reception module, for receiving and demodulating the upstream data of UE transmissions；
Feedback resources determining module, for according to the UE send upstream data used in frequency, reference signal and The channel state parameter of UE downlink resource shared when determining to be fed back for the UE this transmitting uplink data； And
Feedback module, the demodulation result for basis to the UE upstream datas, to institute on identified downlink resource State UE and send feedback.
According to one embodiment of present invention, above-mentioned feedback resources determining module can include：
Dispensing unit, for configuring the corresponding pass between more than one channel state parameter section and more than one resources bank System；Wherein, one above resources bank is orthogonal by being divided to obtain by whole downlink resources for feedback Resources bank；
Status information receiving unit, the channel status reported for receiving the UE；
Resources bank determining unit, for the channel status reported according to the UE and the channel state parameter section of configuration With the corresponding relation of resources bank, resources bank corresponding to the UE is determined；And
Feedback resources determining unit, it is true for frequency and reference signal according to used in UE transmission upstream datas It is scheduled on the position of downlink resource used in being fed back in resources bank corresponding to the UE.
Specifically, above-mentioned feedback resources determining unit can determine the position of downlink resource according to above-mentioned formula (1).
As it was previously stated, status information receiving unit can be received by various ways such as previously described display or recessiveness The channel status that UE is reported.
In another embodiment of the present invention, above-mentioned feedback resources determining module can also be true by above-mentioned formula (2) Surely shared downlink resource when this transmitting uplink data for the UE is fed back.
Figure 14 shows the structure of UE in one embodiment of the invention.As shown in figure 14, the UE can include：
Uplink module, for sending upstream data.Specifically, the uplink module can be used based on competition Uplink scheme send upstream data.
The UE can also include：
Second feedback resources determining module, for according to used in sending the upstream data frequency, reference signal with And the channel state parameter of itself determines downlink resource shared when eNB is fed back for this transmitting uplink data；With And
Feedback reception module, for it is determined that downlink resource on receive the eNB for this transmitting uplink data Feedback, determines whether the eNB proper reception of the upstream data of this transmission.
In one embodiment of the invention, above-mentioned second feedback resources determining module can include：
Second dispensing unit, for configuring pair between more than one channel state parameter section and more than one resources bank It should be related to；Wherein, one above resources bank is by being divided to obtain just by whole downlink resources for feedback The resources bank of friendship；
Channel status measuring unit, given for measuring the channel status of itself, and by the measurement feedback of channel status eNB；
Secondary resource storehouse determining unit, join for the channel status obtained according to measurement and the channel status itself configured The relation of number interval and resources bank, it is determined that the corresponding resources bank certainly under current channel condition；
Second feedback resources determining unit, for frequency and reference signal according to used in self transmission upstream data It is determined that it is used for the position for receiving the downlink resource of feedback in resources bank corresponding to itself.
As it was previously stated, above-mentioned channel status measuring unit can will measure obtained letter by modes such as display or recessiveness Road feedback of status is to eNB.
In another embodiment of the present invention, above-mentioned second feedback resources determining module can also be true according to formula (2) Shared downlink resource when determining base station eNB for this transmitting uplink data progress hybrid automatic repeat-request feedback.
As it was previously stated, in an embodiment of the present invention, it can also be fed back by DCI.Under this mentality of designing, ENB structure is as shown in figure 15, including：
Data reception module, for receiving and demodulating the upstream data of UE transmissions；And
Second feedback module, for according to the demodulation results of the UE upstream datas, by the DCI for feedback to institute State UE and send feedback.
UE structure is as shown in figure 16, including：
Uplink module, for sending upstream data；
DCI receiving modules, for receiving the DCI for feeding back；And
Second feedback reception module, determine whether the eNB proper reception of for the HARQ fields according to the DCI The upstream data of this transmission.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention God any modification, equivalent substitution and improvements done etc., should be included within the scope of protection of the invention with principle.

Claims (16)

  1. A kind of 1. feedback method for transmitting uplink data, it is characterised in that including：
    After receiving and demodulating the upstream data of user terminal UE transmissions, the frequency according to used in the UE sends upstream data The channel state parameter of rate, reference signal and the UE determines that this transmitting uplink data is fed back when institute for the UE The downlink resource of occupancy；And
    According to the demodulation result to the UE upstream datas, send and feed back to the UE on identified downlink resource.
  2. 2. according to the method for claim 1, it is characterised in that the channel state parameter includes：UE signal interference is made an uproar Acoustic ratio, Reference Signal Received Power, channel quality instruction or the UE carry out used modulating-coding during transmitting uplink data Mode.
  3. 3. according to the method for claim 1, it is characterised in that described this transmitting uplink data determined for the UE Shared downlink resource includes when being fed back：
    Configure the corresponding relation between more than one channel state parameter section and more than one resources bank；Wherein, it is one Above resources bank is the orthogonal more than one resources bank by being divided to obtain by whole downlink resources for feedback；
    Receive the channel status that the UE is reported；
    According to the UE channel status reported and the channel state parameter section of configuration and the corresponding relation of resources bank, it is determined that Resources bank corresponding to the UE；And
    Frequency and reference signal are determined in resources bank corresponding in the UE according to used in the UE transmits upstream data The position of downlink resource used in being fed back.
  4. 4. according to the method for claim 3, it is characterised in that the channel status that the reception UE is reported includes：
    Configure the corresponding pass between one above channel state parameter section and more than one random access leader sequence group System；
    According to the UE in the random access procedure used targeting sequencing determine the targeting sequencing belonging to targeting sequencing Group；And
    According between one above channel state parameter section of configuration and more than one random access leader sequence group Corresponding relation determines the channel status of the UE.
  5. 5. according to the method for claim 1, it is characterised in that described this transmitting uplink data determined for the UE Shared downlink resource includes when being fed back：
    The channel status that the UE is reported is received, the channel status reported according to the UE is that UE is configured to transmitting uplink data Modulation coding mode MCS；
    The downlink resource is determined according to equation below：
    Wherein,Represent the index for the physical mixed automatic re-transmission indicating channel PHICH groups being calculated；Represent The index of orthogonal sequence in the PHICH groups；IPRB_RAIt is the minimum physical resource that UE used during transmitting uplink data Block；nRSIt is that UE carries out the RS that transmitting uplink data uses；Represent the sum of the PHICH groups of system configuration；Represent The available orthogonal sequence in a PHICH group of system configuration；And the threshold value for the MCS that Tre is system configuration.
  6. 6. according to the method for claim 1, it is characterised in that described this transmitting uplink data determined for the UE Shared downlink resource includes when being fed back：
    The channel status that the UE is reported is received, the channel status reported according to the UE is that UE is configured to transmitting uplink data Modulation coding mode MCS；
    The downlink resource is determined according to equation below：
    Wherein,Represent the index for the physical mixed automatic re-transmission indicating channel PHICH groups being calculated；Represent The index of orthogonal sequence in the PHICH groups；IPRB_RAIt is the minimum physical resource that UE used during transmitting uplink data Block；nRSIt is that UE carries out the RS that transmitting uplink data uses；Represent the sum of the PHICH groups of system configuration；Represent The available orthogonal sequence in a PHICH group of system configuration；And the threshold value for the MCS that Tre is system configuration.
  7. A kind of 7. feedback method for transmitting uplink data, it is characterised in that including：
    After sending upstream data, frequency, reference signal and the channel shape of itself according to used in sending the upstream data State parameter determines downlink resource shared when base station eNB is fed back for this transmitting uplink data；And
    It is determined that downlink resource on receive the eNB be directed to this transmitting uplink data feedback, determine the eNB whether It proper reception of the upstream data of this transmission.
  8. 8. according to the method for claim 7, it is characterised in that the channel state parameter includes：UE signal interference is made an uproar Acoustic ratio, Reference Signal Received Power, channel quality instruction or the UE carry out used modulating-coding during transmitting uplink data Mode.
  9. 9. according to the method for claim 7, it is characterised in that the determination base station eNB is directed to this transmitting uplink data Shared downlink resource includes when being fed back：
    Configure the corresponding relation between more than one channel state parameter section and more than one resources bank；Wherein, it is one Above resources bank is the orthogonal resources bank by being divided to obtain by whole downlink resources for feedback；
    UE measures the channel status of itself, and by the measurement feedback of channel status to eNB；
    Upstream data is transmitted to the channel status obtained according to measurement after eNB and the channel state parameter section itself configured With the relation of resources bank, it is determined that under current channel condition corresponding resources bank；
    Determine to be used in resources bank corresponding to itself according to frequency used in self transmission upstream data and reference signal Receive the position of the downlink resource of feedback.
  10. 10. according to the method for claim 9, it is characterised in that the measurement feedback by channel status gives eNB bags Include：
    Configure the corresponding relation between more than one channel state parameter section and more than one random access leader sequence group；
    The channel status of itself obtained according to measurement determines that itself carries out used targeting sequencing group during Stochastic accessing；And
    Targeting sequencing is selected to carry out Stochastic accessing in targeting sequencing group corresponding to itself.
  11. 11. according to the method for claim 7, it is characterised in that the determination base station eNB is directed to this transmitting uplink data Shared downlink resource includes when being fed back：
    UE measures the channel status of itself, and by the measurement feedback of channel status to eNB；
    Receive the modulation coding mode MCS for transmitting uplink data of eNB configurations；And
    Upstream data is transmitted to after eNB, the downlink resource is determined according to equation below：
    Wherein,Represent the index for the physical mixed automatic re-transmission indicating channel PHICH groups being calculated；Represent The index of orthogonal sequence in the PHICH groups；IPRB_RAIt is the minimum physical resource that UE used during transmitting uplink data Block；nRSIt is that UE carries out the RS that transmitting uplink data uses；Represent the sum of the PHICH groups of system configuration；Represent The available orthogonal sequence in a PHICH group of system configuration；And the threshold value for the MCS that Tre is system configuration.
  12. 12. according to the method for claim 7, it is characterised in that the determination base station eNB is directed to this transmitting uplink data Shared downlink resource includes when being fed back：
    UE measures the channel status of itself, and by the measurement feedback of channel status to eNB；
    Receive the modulation coding mode MCS for transmitting uplink data of eNB configurations；And
    Upstream data is transmitted to after eNB, the downlink resource is determined according to equation below：
    Wherein,Represent the index for the physical mixed automatic re-transmission indicating channel PHICH groups being calculated；Represent The index of orthogonal sequence in the PHICH groups；IPRB_RAIt is the minimum physical resource that UE used during transmitting uplink data Block；nRSIt is that UE carries out the RS that transmitting uplink data uses；Represent the sum of the PHICH groups of system configuration；Represent The available orthogonal sequence in a PHICH group of system configuration；And the threshold value for the MCS that Tre is system configuration.
  13. A kind of 13. base station, it is characterised in that including：
    Data reception module, for receiving and demodulating the upstream data of user terminal UE transmissions；
    Feedback resources determining module, for frequency, reference signal and described used in sending upstream data according to the UE UE channel state parameter downlink resource shared when determining to be fed back for the UE this transmitting uplink data；And
    Feedback module, the demodulation result for basis to the UE upstream datas, to the UE on identified downlink resource Send feedback.
  14. 14. base station according to claim 13, it is characterised in that the feedback resources determining module includes：
    Dispensing unit, for configuring the corresponding relation between more than one channel state parameter section and more than one resources bank； Wherein, one above resources bank is orthogonal one by being divided to obtain by whole downlink resources for feedback Resources bank above；
    Status information receiving unit, the channel status reported for receiving the UE；
    Resources bank determining unit, for the channel status reported according to the UE and the channel state parameter section of configuration and money The corresponding relation in source storehouse, determine resources bank corresponding to the UE；And
    Feedback resources determining unit, determine to exist for frequency and reference signal according to used in UE transmission upstream datas The position of downlink resource used in being fed back in resources bank corresponding to the UE.
  15. A kind of 15. user terminal, it is characterised in that including：
    Uplink module, for sending upstream data；
    Second feedback resources determining module, for according to used in sending the upstream data frequency, reference signal and from The channel state parameter of body determines downlink resource shared when base station is fed back for this transmitting uplink data；And
    Feedback reception module, for it is determined that downlink resource on to receive the base station anti-for this transmitting uplink data Feedback, determines whether the eNB proper reception of the upstream data of this transmission.
  16. 16. UE according to claim 15, it is characterised in that the second feedback resources determining module includes：
    Second dispensing unit, for configuring the corresponding pass between more than one channel state parameter section and more than one resources bank System；Wherein, one above resources bank is orthogonal by being divided to obtain by whole downlink resources for feedback More than one resources bank；
    Channel status measuring unit, for measuring the channel status of itself, and by the measurement feedback of channel status to described Base station；
    Secondary resource storehouse determining unit, for the channel status obtained according to measurement and the channel state parameter area itself configured Between relation with resources bank, it is determined that from the corresponding resources bank under current channel condition；
    Second feedback resources determining unit, determined for the frequency according to used in self transmission upstream data and reference signal It is used for the position for receiving the downlink resource of feedback in resources bank corresponding to itself.
CN201610316850.1A 2016-05-12 2016-05-12 For the feedback method and device of transmitting uplink data Pending CN107370572A (en)

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