CN103684710A - Method for sending/receiving HARQ (Hybrid Automatic Repeat Request) messages, base station and user equipment - Google Patents
Method for sending/receiving HARQ (Hybrid Automatic Repeat Request) messages, base station and user equipment Download PDFInfo
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- CN103684710A CN103684710A CN201210330285.6A CN201210330285A CN103684710A CN 103684710 A CN103684710 A CN 103684710A CN 201210330285 A CN201210330285 A CN 201210330285A CN 103684710 A CN103684710 A CN 103684710A
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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
- H04L1/1867—Arrangements specially adapted for the transmitter end
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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]
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Abstract
The invention provides a method for sending/receiving HARQ (Hybrid Automatic Repeat Request) messages, a base station and user equipment. Particularly, the method for sending the HARQ messages comprises following steps: converting a TDD (Time-Division Duplex) uplink-downlink configuration scheme into a second scheme from a first scheme; determining to send the HARQ messages in a subframe on the basis of the second scheme, wherein the HARQ messages correspond to data in an uplink subframe on the basis of the first scheme; selecting a subframe for sending the HAPQ messages according to a preset HARQ timing sequence, wherein the selected subframe conforms to the second scheme. The preset HARQ timing sequence corresponds to the preset TDD uplink-downlink configuration scheme; the subframe set designated in the preset TDD uplink-downlink configuration scheme is a subset of the subframe set designated in the first scheme as well as the subframe set designated in the second scheme.
Description
Technical field
The present invention relates to mobile communication, particularly, relate to the method for sending/receiving HARQ message, base station and subscriber equipment.
Background technology
In third generation partner plan (3GPP) Long Term Evolution (LTE) system, subscriber equipment (UE) for example physically row shared channel (PUSCH) upper to base station, (also referred to as NodeB or evolution NodeB (eNB)) sends data.As response, base station is upper to UE transmission mixed automatic retransfer request (HARQ) message (affirmative acknowledgement ACK or negative response NACK) at for example Physical HARQ Indicator Channel (PHICH).Here, UE can be user terminal, user node, mobile terminal or panel computer.
3GPP LTE version 10 stipulated HARQ sequential (timing, or be called link link or contact association).Here, HARQ sequential has been specified for the subframe of transmit ascending data and for transmitting as the relation between the descending sub frame of the HARQ message responding.
3GPP LTE version 10 has also been stipulated time division duplex (TDD) uplink-downlink configuration scheme (TDD uplink-downlink configuration scheme (TDD Uplink-Downlink Configuration) 0-6) and conversion thereof.When the TDD uplink-downlink configuration scheme in single carrier dynamically changes, need to carry out corresponding change to HARQ sequential.
Prior art document R1-120513,3GPP TSG RAN WGl Meeting#68, Alcatel-Lucent Shanghai Bell, Alcatel-Lucent has proposed a kind of HARQ sequential when TDD uplink-downlink configuration scheme dynamically changes.R1-120513 has proposed the problem of the potential HARQ timing conflict that the change due to TDD uplink-downlink configuration scheme causes, and adopts following two kinds of solutions.The first solution is to ignore HARQ timing conflict not carry out any processing.The second solution comprises: the nearest uplink/downlink subframe that the HARQ message (ACK/NACK) of binding is delayed to Physical Uplink Shared Channel (PUSCH)/PDSCH; By remap the respectively nearest uplink/downlink subframe of to PUSCH/PDSCH at least 4 Transmission Time Intervals of ACK/NACK; And the ACK/NACK subframe that the ACK/NACK subframe link of previous subframe is changed in the uplink/downlink subframe that HARQ conflict has occurred links.
Yet, according to the first solution in R1-120513, if there is HARQ timing conflict, will cause HARQ retransmitting message.Unnecessary re-transmission causes performance loss.Although in the situation that the change of TDD uplink-downlink configuration scheme occurs the hundreds of milliseconds of orders of magnitude, this performance loss is acceptable.But for the TDD uplink-downlink configuration scheme changing frame by frame, this performance loss is unacceptable.On the other hand, according to the second solution in R1-120513, because it has defined the new HARQ sequential that does not meet LTE version 10, therefore need to carry out larger modification to standard.
Therefore, need a kind of HARQ sequential configuration, the in the situation that of can TDD uplink-downlink configuration scheme dynamically changes frame by frame in single carrier, correctly send HARQ message, and minimize the impact on current standard.
Summary of the invention
The object of the invention is at least some in addressing the above problem.
According to a first aspect of the invention, provide a kind of method that sends mixed automatic retransfer request HARQ message, comprised the following steps: TDD uplink-downlink configuration scheme is converted to alternative plan from the first scheme; Determine and will in the subframe based on alternative plan, send the HARQ message corresponding with data in sub-frame of uplink based on the first scheme; And select for sending the subframe of described HARQ message according to predetermined HARQ sequential, make selected subframe meet alternative plan, wherein, described predetermined HARQ sequential is corresponding with predetermined TDD uplink-downlink configuration scheme, and the set of the descending sub frame that described predetermined TDD uplink-downlink configuration scheme is specified is the subset of the set of the specified descending sub frame of the set of the specified descending sub frame of the first scheme and alternative plan.
Preferably, the first scheme, alternative plan and described predetermined TDD uplink-downlink configuration scheme are the TDD uplink-downlink configuration schemes of 3GPP version 10 definition; And described predetermined HARQ sequential is the HARQ sequential of 3GPP version 10 definition.
Preferably, described predetermined TDD uplink-downlink configuration scheme is TDD uplink-downlink configuration scheme 0.
Preferably, described HARQ message is affirmative acknowledgement ACK or negative response NACK message.
According to a second aspect of the invention, provide a kind of base station, be configured to send mixed automatic retransfer request HARQ message, described base station comprises: converting unit, is converted to alternative plan by TDD uplink-downlink configuration scheme from the first scheme; Determining unit, determines and will in the subframe based on alternative plan, send the HARQ message corresponding with data in sub-frame of uplink based on the first scheme; And selected cell, according to predetermined HARQ sequential, select for sending the subframe of described HARQ message, make selected subframe meet alternative plan, wherein, described predetermined HARQ sequential is corresponding with predetermined TDD uplink-downlink configuration scheme, and the set of the descending sub frame that described predetermined TDD uplink-downlink configuration scheme is specified is the subset of the set of the specified descending sub frame of the set of the specified descending sub frame of the first scheme and alternative plan.
Preferably, the first scheme, alternative plan and described predetermined TDD uplink-downlink configuration scheme are the TDD uplink-downlink configuration schemes of 3GPP version 10 definition; And described predetermined HARQ sequential is the HARQ sequential of 3GPP version 10 definition.
Preferably, described predetermined TDD uplink-downlink configuration scheme is TDD uplink-downlink configuration scheme 0.
Preferably, described HARQ message is affirmative acknowledgement ACK or negative response NACK message.
According to a third aspect of the invention we, provide a kind of method that receives mixed automatic retransfer request HARQ message, comprised the following steps: TDD uplink-downlink configuration scheme is converted to alternative plan from the first scheme; Determine and will in the subframe based on alternative plan, receive the HARQ message corresponding with data in sub-frame of uplink based on the first scheme; And select for receiving the subframe of described HARQ message according to predetermined HARQ sequential, make selected subframe meet alternative plan, wherein, described predetermined HARQ sequential is corresponding with predetermined TDD uplink-downlink configuration scheme, and the set of the descending sub frame that described predetermined TDD uplink-downlink configuration scheme is specified is the subset of the set of the specified descending sub frame of the set of the specified descending sub frame of the first scheme and alternative plan.
Preferably, the first scheme, alternative plan and described predetermined TDD uplink-downlink configuration scheme are the TDD uplink-downlink configuration schemes of 3GPP version 10 definition; And described predetermined HARQ sequential is the HARQ sequential of 3GPP version 10 definition.
Preferably, described predetermined TDD uplink-downlink configuration scheme is TDD uplink-downlink configuration scheme 0.
Preferably, described HARQ message is affirmative acknowledgement ACK or negative response NACK message.
According to a forth aspect of the invention, provide a kind of user equipment (UE), be configured to receive mixed automatic retransfer request HARQ message, described UE comprises: converting unit, is converted to alternative plan by TDD uplink-downlink configuration scheme from the first scheme; Determining unit, determines and will in the subframe based on alternative plan, receive the HARQ message corresponding with data in sub-frame of uplink based on the first scheme; And selected cell, according to predetermined HARQ sequential, select for receiving the subframe of described HARQ message, make selected subframe meet alternative plan, wherein, described predetermined HARQ sequential is corresponding with predetermined TDD uplink-downlink configuration scheme, and the set of the descending sub frame that described predetermined TDD uplink-downlink configuration scheme is specified is the subset of the set of the specified descending sub frame of the set of the specified descending sub frame of the first scheme and alternative plan.
Preferably, the first scheme, alternative plan and described predetermined TDD uplink-downlink configuration scheme are the TDD uplink-downlink configuration schemes of 3GPP version 10 definition; And described predetermined HARQ sequential is the HARQ sequential of 3GPP version 10 definition.
Preferably, described predetermined TDD uplink-downlink configuration scheme is TDD uplink-downlink configuration scheme 0.
Preferably, described HARQ message is affirmative acknowledgement ACK or negative response NACK message.
Accompanying drawing explanation
By detailed description with the accompanying drawing below, above-mentioned and further feature of the present invention will become more apparent, wherein:
Fig. 1 shows the block diagram according to base station of the present invention;
Fig. 2 shows the block diagram according to user equipment (UE) of the present invention;
Fig. 3 shows according to the method for transmission HARQ message of the present invention; And
Fig. 4 shows according to the method for reception HARQ message of the present invention.
Embodiment
Below, the description to specific embodiments of the invention in conjunction with the drawings, principle of the present invention and realization will become obvious.It should be noted in the discussion above that the present invention should not be limited to specific embodiment hereinafter described.In addition, for for simplicity, omitted there is no the detailed description of the known technology of direct correlation with the present invention, to prevent that the understanding of the present invention from causing, obscured.
Below using LTE Rel-12 mobile communication system and follow-up evolution version thereof as example application environment, specifically described according to a plurality of embodiment of the present invention.Yet, it is pointed out that and the invention is not restricted to following examples, but applicable to more other wireless communication systems, for example 5G cellular communication system from now on.
Fig. 1 shows according to the block diagram of base station 100 of the present invention.As shown in the figure, base station 100 comprises: converting unit 110, determining unit 120 and selected cell 130.It will be understood by those skilled in the art that base station 100 also comprises realizes necessary other functional units of its function, as various processors, memory etc.
As mentioned above, in the situation that TDD uplink-downlink configuration scheme dynamically changes, base station 100 operates to select the subframe (selecting HARQ sequential) for sending HARQ message.
Converting unit 110 is converted to alternative plan by TDD uplink-downlink configuration scheme from the first scheme.Now, converting unit 110 conversion to UE notice TDD uplink-downlink configuration scheme by signaling.
Determining unit 120 is determined will send the HARQ message corresponding with upstream data in sub-frame of uplink based on the first scheme in the subframe based on alternative plan.
Selected cell 130 is selected, for sending the subframe of described HARQ message, to make selected subframe meet alternative plan according to predetermined HARQ sequential.In other words, make the position of selected subframe in alternative plan, can be used in transmission HARQ message.According to embodiments of the invention, described predetermined HARQ sequential is corresponding with predetermined TDD uplink-downlink configuration scheme, and the set of the descending sub frame that described predetermined TDD uplink-downlink configuration scheme is specified is the subset of the set of the specified descending sub frame of the set of the specified descending sub frame of the first scheme and alternative plan.
According to embodiments of the invention, the first scheme, alternative plan and above-mentioned predetermined TDD uplink-downlink configuration scheme are the TDD uplink-downlink configuration schemes (one of TDD uplink-downlink configuration scheme 0-6) of 3GPP version 10 definition.Correspondingly, above-mentioned predetermined HARQ sequential is the HARQ sequential (for example 3GPP TS 36.213V10.4.0 (2011-12) " the HARQ sequential defining in the table 9.1.2-1 in Physical layer procedures (Release 10)) of 3GPP version 10 definition.
According to embodiments of the invention, above-mentioned predetermined TDD uplink-downlink configuration scheme is the TDD uplink-downlink configuration scheme 0 of 3GPP version 10 definition.
According to embodiments of the invention, HARQ message is affirmative acknowledgement ACK or negative response NACK message.
The operation of the unit of base station 100 is below described by concrete example.One skilled in the art will recognize that and the invention is not restricted to concrete example described below.As long as the corresponding units above-mentioned principle according to the present invention of base station 100 operates, just can realize object of the present invention.
First, according to 3GPP TS 36.211V10.3.0 (2011-09) " the table 4.2-2 in Physical Channels and Modulation (Release 10), following table 1 shows the ascending-descending subframes ratio of TDD uplink-downlink configuration scheme:
| TDD uplink-downlink configuration scheme | 0 | 1 | 2 | 3 | 4 | 5 | 6 |
| Ascending-descending subframes ratio | 6∶4 | 4∶6 | 2∶8 | 3∶7 | 2∶8 | 1∶9 | 5∶5 |
The ascending-descending subframes ratio of table 1-TDD uplink-downlink configuration scheme
Here, suppose C
ncorresponding to HARQ sequential R
n, as mentioned above, R
nappointment is according to C
nfor the sub-frame of uplink of transmit ascending data (as at PUSCH) and for transmitting the corresponding relation as the descending sub frame of the HARQ message responding.Similarly, C
n+1corresponding to HARQ sequential R
n+1, R
n+1appointment is according to C
n+1the sub-frame of uplink for transmit ascending data with for transmitting the corresponding relation of descending sub frame as the HARQ message of response.Here, R
nand R
n+1for example in 3GPP TS 36.213V10.4.0 (2011-12) " the HARQ sequential defining in the table 9.1.2-1 in Physical layer procedures (Release10).
In this example, converting unit 110 by TDD uplink-downlink configuration scheme the C from n frame (and n frame before frame)
nbe converted to the C of n+1 frame
n+1.
Determining unit 120 can be identified for the subframe of transmit ascending data and affiliated radio frames thereof and for transmitting as the descending sub frame of the HARQ message of response and affiliated radio frames thereof.If upstream data in n frame (according to C
n) transmission, corresponding HARQ message also in n frame (according to C
n) send, selected cell 130 can be according to R
nselect for sending the subframe of described HARQ message.If upstream data in n+1 frame (according to C
n+1) transmission, corresponding HARQ message also in n+1 frame (according to C
n+1) send, selected cell 130 can be according to R
n+1select for sending the subframe of described HARQ message.In both cases, upstream data and HARQ message in same number of frames (according to identical C) are transmitted, so selected cell 130 is selected for sending the subframe of HARQ message according to corresponding R.
According to embodiments of the invention, determining unit 120 determines, with in n frame (according to C
n) subframe i in the corresponding HARQ message of upstream data transmitted will be (according to C in n+1 frame
n+1) send, selected cell 130 is selected for sending the subframe of described HARQ message according to predetermined HARQ sequential.
Here, predetermined HARQ sequential is corresponding with predetermined TDD uplink-downlink configuration scheme, the set of the descending sub frame that described predetermined TDD uplink-downlink configuration scheme is specified is the subset of the set of the specified descending sub frame of the first scheme, is also the subset of the set of the specified descending sub frame of alternative plan.
Adopting 3GPP TS 36.213V10.4.0 (2011-12) " in the embodiments of the invention of the HARQ sequential defining in the table 9.1.2-1 in Physical layer procedures (Release 10), can use the HARQ sequential R0 corresponding with TDD uplink-downlink configuration scheme 0 as above-mentioned predetermined HARQ sequential.See the above table 1,4 descending sub frames in TDD uplink-downlink configuration scheme 0, have been stipulated, according to 3GPP TS 36.211V10.3.0 (2011-09), " Physical Channels and Modulation (Release 10) includes this 4 descending sub frames in TDD uplink-downlink configuration scheme 1-6.In other words, the set of the specified descending sub frame of TDD uplink-downlink configuration scheme 0 is the subset of the set of the specified descending sub frame of arbitrary scheme in TDD uplink-downlink configuration scheme 1-6.Correspondingly, in TDD uplink-downlink configuration scheme 1-6, the set of the specified sub-frame of uplink of arbitrary scheme is the subset of the set of the specified sub-frame of uplink of TDD uplink-downlink configuration scheme 0.Therefore, no matter C
nto C
n+1how to change (C
nor C
n+1also can adopt scheme 0), R0 all specified with according to C
nthe position of the descending sub frame that the sub-frame of uplink that sends is corresponding, and the descending sub frame of this position can be used in and sends HARQ.
Particularly, according to 3GPP TS 36.213V10.4.0 (2011-12) " the table 9.1.2-1 in Physical layer procedures (Release 10), HARQ sequential R0 is defined as follows:
The HARQ feedback of PUSCH in the subframe 2 of n frame is transmitted in the PHICH of the subframe 6 of n frame;
The HARQ feedback of PUSCH in the subframe 3 of n frame is transmitted in the PHICH of the subframe 0 of n+1 frame;
The HARQ feedback of PUSCH in the subframe 4 of n frame is transmitted in the PHICH of the subframe 0 of n+1 frame;
The HARQ feedback of PUSCH in the subframe 7 of n frame is transmitted in the PHICH of the subframe 1 of n+1 frame;
The HARQ feedback of PUSCH in the subframe 8 of n frame is transmitted in the PHICH of the subframe 5 of n+1 frame; And
The HARQ feedback of PUSCH in the subframe 9 of n frame is transmitted in the PHICH of the subframe 5 of n+1 frame.
One skilled in the art will recognize that for in n frame (according to C
n) subframe i in the corresponding HARQ message of upstream data transmitted will be (according to C in n+1 frame
n+1) situation about sending, above-mentioned predetermined HARQ sequential is not limited to HARQ sequential R0, as long as but meet above-mentioned condition, the set of the specified descending sub frame of the predetermined TDD uplink-downlink configuration scheme corresponding with this predetermined HARQ sequential is C
nthe subset of the set of specified descending sub frame is also C
n+1the subset of the set of specified descending sub frame.
Alternatively, above-mentioned predetermined HARQ sequential can as described belowly be determined.
According to the descending of ascending-descending subframes ratio, by TDD uplink-downlink configuration scheme 0-6 sequence, be 0,6,1,3,4,2,5.According to the descending of ascending-descending subframes ratio, table 2 shows TDD uplink-downlink configuration scheme from the TDD uplink-downlink configuration scheme C of n frame
nbe converted to the TDD uplink-downlink configuration scheme C of n+1 frame
n+1translation type.
The translation type of table 2-TDD uplink-downlink configuration scheme
In table 2, by the TDD uplink-downlink configuration scheme C from n frame
ntDD uplink-downlink configuration scheme C to n+1 frame
n+1conversion be divided into 3 kinds of translation type: A, B and X.According to 3GPP TS 36.211V10.3.0 (2011-09) " the table 4.2-2 in Physical Channels and Modulation (Release10), as shown in table 2, for translation type A, C
nthe set of specified descending sub frame is C
n+1the subset of the set of specified descending sub frame, correspondingly, C
n+1the set of specified sub-frame of uplink is C
nthe subset of the set of specified sub-frame of uplink; For translation type B, C
n+1the set of specified descending sub frame is C
nthe subset of the set of specified descending sub frame, correspondingly, C
nthe set of specified sub-frame of uplink is C
n+1the subset of the set of specified sub-frame of uplink; For translation type X, C
nand C
n+1there is not inclusion relation in the set of specified ascending-descending subframes.
Therefore, for translation type A, can according to C
ncorresponding HARQ sequential R
nselect the subframe for HARQ message; For translation type B, can adopt and C
n+1corresponding HARQ sequential R
n+1select the subframe for HARQ message; For translation type X, can according to R0, select the subframe for HARQ message as mentioned above.
Below provide concrete example and explain in detail above-mentioned translation type and rule.Yet the example below providing is only that schematically principle of the present invention is not limited to following specific implementation.
example 1-is from TDD uplink-downlink configuration 1 (C
n
=2) be converted to TDD uplink-downlink configuration 2
(C
n+1
=0)
Suppose that TDD uplink-downlink configuration is from configuring 1 (C
n=2) be converted to configuration 2 (C
n+1=0).
According to R
nif upstream data transmits in the subframe 2 of n frame, corresponding HARQ message is transmitted in n frame (subframe 8).In this case, according to R
nselect the subframe for transmitting HARQ message, HARQ message is transmitted in the subframe 8 of n frame.
According to R
nif upstream data transmits in the subframe 7 of n frame, corresponding HARQ message is transmitted in n+1 frame.In this case, according to R0, select the subframe for transmitting HARQ message, HARQ message is transmitted in the subframe 1 of n+1 frame.
example 2-is from TDD uplink-downlink configuration 6 (C
n
=6) be converted to TDD uplink-downlink configuration 3
(C
n+1
=3)
Suppose that TDD uplink-downlink configuration is from configuring 1 (C
n=6) be converted to configuration 2 (C
n+1=3).
According to R
nif upstream data transmits in the subframe 2 of n frame, corresponding HARQ message is transmitted in n frame (subframe 6).In this case, according to R
nselect the subframe for transmitting HARQ message, HARQ message is transmitted in the subframe 6 of n frame.
According to R
nif upstream data transmits in the subframe 3 of n frame, corresponding HARQ message is transmitted in n frame (subframe 9).In this case, according to R
nselect the subframe for transmitting HARQ message, HARQ message is transmitted in the subframe 9 of n frame.
According to R
nif upstream data transmits in the subframe 4 of n frame, corresponding HARQ message is transmitted in n+1 frame.In this case, according to R0, select the subframe for transmitting HARQ message, HARQ message is transmitted in the subframe 0 of n+1 frame.
According to R
nif upstream data transmits in the subframe 7 of n frame, corresponding HARQ message is transmitted in n+1 frame.In this case, according to R0, select the subframe for transmitting HARQ message, HARQ message is transmitted in the subframe 1 of n+1 frame.
According to R
nif upstream data transmits in the subframe 8 of n frame, corresponding HARQ message is transmitted in n+1 frame.In this case, according to R0, select the subframe for transmitting HARQ message, HARQ message is transmitted in the subframe 5 of n+1 frame.
example 3-is from TDD uplink-downlink configuration 2 (C
n
=2) be converted to TDD uplink-downlink configuration 0
(C
n+1
=0)
Suppose that TDD uplink-downlink configuration is from configuring 2 (C
n=2) be converted to configuration 0 (C
n+1=0).
According to table 2, this conversion belongs to translation type B.
According to R
nif upstream data transmits in the subframe 2 of n frame, corresponding HARQ message is transmitted in n frame (subframe 8).In this case, according to R
nselect the subframe for transmitting HARQ message, HARQ message is transmitted in the subframe 8 of n frame.
According to R
nif upstream data transmits in the subframe 7 of n frame, corresponding HARQ message is transmitted in n+1 frame (subframe 3).In this case, according to R
n+1select the subframe for transmitting HARQ message, HARQ message is transmitted in the subframe 1 of n+1 frame.
Fig. 2 shows according to the block diagram of UE 200 of the present invention.As shown in the figure, UE 200 comprises: converting unit 210, determining unit 220 and selected cell 230.It will be understood by those skilled in the art that UE 200 also comprises realizes necessary other functional units of its function, as various processors, memory etc.
With the class of operation of above-mentioned base station 100 seemingly, UE 200 operates to select the subframe (selecting HARQ sequential) for receiving HARQ message.
Converting unit 210 is converted to alternative plan by TDD uplink-downlink configuration scheme from the first scheme.Here, converting unit 110 can, according to the signaling from base station, be converted to alternative plan by TDD uplink-downlink configuration scheme from the first scheme.
Determining unit 220 is determined will receive the HARQ message corresponding with data in sub-frame of uplink based on the first scheme in the subframe based on alternative plan.
According to embodiments of the invention, the first scheme, alternative plan and above-mentioned predetermined TDD uplink-downlink configuration scheme are the TDD uplink-downlink configuration schemes (one of TDD uplink-downlink configuration scheme 0-6) of 3GPP version 10 definition.Correspondingly, above-mentioned predetermined HARQ sequential is the HARQ sequential (for example 3GPP TS 36.213V10.4.0 (2011-12) " the HARQ sequential defining in the table 9.1.2-1 in Physical layer procedures (Release 10)) of 3GPP version 10 definition.
According to embodiments of the invention, above-mentioned predetermined TDD uplink-downlink configuration scheme is the TDD uplink-downlink configuration scheme 0 of 3GPP version 10 definition.
According to embodiments of the invention, HARQ message is affirmative acknowledgement ACK or negative response NACK message.
The rule of describing about base station 100 above and example are also applicable to UE 200 and select for receiving the subframe of described HARQ message.
Particularly, adopting 3GPP TS 36.213V10.4.0 (2011-12) " in the embodiments of the invention of the HARQ sequential defining in the table 9.1.2-1 in Physical layer procedures (Release 10), can use the HARQ sequential R0 corresponding with TDD uplink-downlink configuration scheme 0 as above-mentioned predetermined HARQ sequential.See the above table 1,4 descending sub frames in TDD uplink-downlink configuration scheme 0, have been stipulated, according to 3GPP TS 36.211V10.3.0 (2011-09), " Physical Channels and Modulation (Release 10) includes this 4 descending sub frames in TDD uplink-downlink configuration scheme 1-6.In other words, the set of the specified descending sub frame of TDD uplink-downlink configuration scheme 0 is the subset of the set of the specified descending sub frame of arbitrary scheme in TDD uplink-downlink configuration scheme 1-6.Correspondingly, in TDD uplink-downlink configuration scheme 1-6, the set of the specified sub-frame of uplink of arbitrary scheme is the subset of the set of the specified sub-frame of uplink of TDD uplink-downlink configuration scheme 0.Therefore, no matter C
nto C
n+1how to change (C
nor C
n+1also can adopt scheme 0), R0 all specified with according to C
nthe position of the corresponding descending sub frame of sub-frame of uplink of transmission, and the descending sub frame of this position can be used in and receives HARQ.
The flow chart of the method for sending/receiving mixed automatic retransfer request HARQ message of the present invention is described referring to accompanying drawing.In the following description, for clear, in conjunction with the specific embodiment of above base station 100 and UE 200, method of the present invention is described.Yet, those skilled in the art will recognize that, specific functional units in conjunction with above base station or UE illustrates that method of the present invention is only used to illustrative purpose, in the situation that for example carrying out implementation method with computer program, do not need the division of this functional unit and assembly completely, but base station or UE make the as a whole method of the present invention that realizes.The all features described that combine with the embodiment of above-mentioned base station 100 and UE 200 are also applicable to following methods embodiment.
Fig. 3 shows according to the flow chart of the method 300 of transmission HARQ message of the present invention.Method 300 can be carried out by base station 100, and comprises the following steps.
At step S310, converting unit 110 is converted to alternative plan by TDD uplink-downlink configuration scheme from the first scheme.
At step S320, determining unit 120 is determined will send the HARQ message corresponding with data in sub-frame of uplink based on the first scheme in the subframe based on alternative plan.
At step S330, selected cell 130 is selected, for sending the subframe of described HARQ message, to make selected subframe meet alternative plan according to predetermined HARQ sequential.According to embodiments of the invention, described predetermined HARQ sequential is corresponding with predetermined TDD uplink-downlink configuration scheme, and the set of the descending sub frame that described predetermined TDD uplink-downlink configuration scheme is specified is the subset of the set of the specified descending sub frame of the set of the specified descending sub frame of the first scheme and alternative plan.
Preferably, the first scheme, alternative plan and described predetermined TDD uplink-downlink configuration scheme are the TDD uplink-downlink configuration schemes of 3GPP version 10 definition.Described predetermined HARQ sequential is the HARQ sequential of 3GPP version 10 definition.
Preferably, described predetermined TDD uplink-downlink configuration scheme is TDD uplink-downlink configuration scheme 0.
Preferably, described HARQ message is affirmative acknowledgement ACK or negative response NACK message.
Fig. 4 shows according to the flow chart of the method 400 of reception HARQ message of the present invention.Method 400 can be carried out by UE 200, and comprises the following steps.
At step S410, converting unit 210 is converted to alternative plan by TDD uplink-downlink configuration scheme from the first scheme.
At step S420, determining unit 220 is determined will receive the HARQ message corresponding with data in sub-frame of uplink based on the first scheme in the subframe based on alternative plan.
At step S430, selected cell 230 is selected, for receiving the subframe of described HARQ message, to make selected subframe meet alternative plan according to predetermined HARQ sequential.According to embodiments of the invention, described predetermined HARQ sequential is corresponding with predetermined TDD uplink-downlink configuration scheme, and the set of the descending sub frame that described predetermined TDD uplink-downlink configuration scheme is specified is the subset of the set of the specified descending sub frame of the set of the specified descending sub frame of the first scheme and alternative plan.
Preferably, the first scheme, alternative plan and described predetermined TDD uplink-downlink configuration scheme are the TDD uplink-downlink configuration schemes of 3GPP version 10 definition.Described predetermined HARQ sequential is the HARQ sequential of 3GPP version 10 definition.
Preferably, described predetermined TDD uplink-downlink configuration scheme is TDD uplink-downlink configuration scheme 0.
Preferably, described HARQ message is affirmative acknowledgement ACK or negative response NACK message.
According to the present invention, can be in single carrier TDD uplink-downlink configuration scheme dynamically change frame by frame in the situation that, correctly send HARQ message, and in the TDD uplink-downlink configuration transition period, avoided because unnecessary HARQ retransmits the performance loss causing.In addition, reuse as far as possible the HARQ sequential of current standard regulation, thereby minimize the impact on current standard.
Although below show the present invention in conjunction with the preferred embodiments of the present invention, one skilled in the art will appreciate that without departing from the spirit and scope of the present invention, can carry out various modifications, replacement and change to the present invention.Therefore, the present invention should not limited by above-described embodiment, and should be limited by claims and equivalent thereof.
Claims (16)
1. a method that sends mixed automatic retransfer request HARQ message, comprises the following steps:
TDD uplink-downlink configuration scheme is converted to alternative plan from the first scheme;
Determine and will in the subframe based on alternative plan, send the HARQ message corresponding with data in sub-frame of uplink based on the first scheme; And
According to predetermined HARQ sequential, select, for sending the subframe of described HARQ message, to make selected subframe meet alternative plan,
Wherein, described predetermined HARQ sequential is corresponding with predetermined TDD uplink-downlink configuration scheme, and the set of the descending sub frame that described predetermined TDD uplink-downlink configuration scheme is specified is the subset of the set of the specified descending sub frame of the set of the specified descending sub frame of the first scheme and alternative plan.
2. method according to claim 1, wherein,
The first scheme, alternative plan and described predetermined TDD uplink-downlink configuration scheme are the TDD uplink-downlink configuration schemes of 3GPP version 10 definition; And
Described predetermined HARQ sequential is the HARQ sequential of 3GPP version 10 definition.
3. method according to claim 2, wherein,
Described predetermined TDD uplink-downlink configuration scheme is TDD uplink-downlink configuration scheme 0.
4. according to the method in any one of claims 1 to 3, wherein, described HARQ message is affirmative acknowledgement ACK or negative response NACK message.
5. a base station, is configured to send mixed automatic retransfer request HARQ message, and described base station comprises:
Converting unit, is converted to alternative plan by TDD uplink-downlink configuration scheme from the first scheme;
Determining unit, determines and will in the subframe based on alternative plan, send the HARQ message corresponding with data in sub-frame of uplink based on the first scheme; And
Selected cell, selects, for sending the subframe of described HARQ message, to make selected subframe meet alternative plan according to predetermined HARQ sequential,
Wherein, described predetermined HARQ sequential is corresponding with predetermined TDD uplink-downlink configuration scheme, and the set of the descending sub frame that described predetermined TDD uplink-downlink configuration scheme is specified is the subset of the set of the specified descending sub frame of the set of the specified descending sub frame of the first scheme and alternative plan.
6. base station according to claim 5, wherein,
The first scheme, alternative plan and described predetermined TDD uplink-downlink configuration scheme are the TDD uplink-downlink configuration schemes of 3GPP version 10 definition; And
Described predetermined HARQ sequential is the HARQ sequential of 3GPP version 10 definition.
7. base station according to claim 6, wherein,
Described predetermined TDD uplink-downlink configuration scheme is TDD uplink-downlink configuration scheme 0.
8. according to the base station described in any one in claim 5 to 7, wherein, described HARQ message is affirmative acknowledgement ACK or negative response NACK message.
9. a method that receives mixed automatic retransfer request HARQ message, comprises the following steps:
TDD uplink-downlink configuration scheme is converted to alternative plan from the first scheme;
Determine and will in the subframe based on alternative plan, receive the HARQ message corresponding with data in sub-frame of uplink based on the first scheme; And
According to predetermined HARQ sequential, select, for receiving the subframe of described HARQ message, to make selected subframe meet alternative plan,
Wherein, described predetermined HARQ sequential is corresponding with predetermined TDD uplink-downlink configuration scheme, and the set of the descending sub frame that described predetermined TDD uplink-downlink configuration scheme is specified is the subset of the set of the specified descending sub frame of the set of the specified descending sub frame of the first scheme and alternative plan.
10. method according to claim 9, wherein,
The first scheme, alternative plan and described predetermined TDD uplink-downlink configuration scheme are the TDD uplink-downlink configuration schemes of 3GPP version 10 definition; And
Described predetermined HARQ sequential is the HARQ sequential of 3GPP version 10 definition.
11. methods according to claim 10, wherein,
Described predetermined TDD uplink-downlink configuration scheme is TDD uplink-downlink configuration scheme 0.
12. according to the method described in any one in claim 9 to 11, and wherein, described HARQ message is affirmative acknowledgement ACK or negative response NACK message.
13. 1 kinds of user equipment (UE)s, are configured to receive mixed automatic retransfer request HARQ message, and described UE comprises:
Converting unit, is converted to alternative plan by TDD uplink-downlink configuration scheme from the first scheme;
Determining unit, determines and will in the subframe based on alternative plan, receive the HARQ message corresponding with data in sub-frame of uplink based on the first scheme; And
Selected cell, selects, for receiving the subframe of described HARQ message, to make selected subframe meet alternative plan according to predetermined HARQ sequential,
Wherein, described predetermined HARQ sequential is corresponding with predetermined TDD uplink-downlink configuration scheme, and the set of the descending sub frame that described predetermined TDD uplink-downlink configuration scheme is specified is the subset of the set of the specified descending sub frame of the set of the specified descending sub frame of the first scheme and alternative plan.
14. UE according to claim 13, wherein,
The first scheme, alternative plan and described predetermined TDD uplink-downlink configuration scheme are the TDD uplink-downlink configuration schemes of 3GPP version 10 definition; And
Described predetermined HARQ sequential is the HARQ sequential of 3GPP version 10 definition.
15. UE according to claim 14, wherein,
Described predetermined TDD uplink-downlink configuration scheme is TDD uplink-downlink configuration scheme 0.
16. according to claim 13 to the UE described in any one in 15, and wherein, described HARQ message is affirmative acknowledgement ACK or negative response NACK message.
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| CN201210330285.6A CN103684710A (en) | 2012-09-07 | 2012-09-07 | Method for sending/receiving HARQ (Hybrid Automatic Repeat Request) messages, base station and user equipment |
| PCT/IB2013/001759 WO2014037772A1 (en) | 2012-09-07 | 2013-08-09 | Method, base station, and user equipment for transmitting/receiving harq messages |
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| CN109152053A (en) * | 2017-06-16 | 2019-01-04 | 中国移动通信有限公司研究院 | Transmission time sequence determination and indicating means, communication equipment and storage medium |
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| CN102104469B (en) * | 2011-03-07 | 2015-01-28 | 中兴通讯股份有限公司 | Terminal uplink/downlink HARQ (Hybrid Automatic Repeat Request) feedback information dispatching method and device |
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| ALCATEL-LUCENT: "Discussion on HARQ timing with dynamic TDD UL-DL configuration", 《3GPP TSG RAN WG1 MEETING #68 R1-120513》 * |
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