CN104348595A - Transmission method for hybrid automatic repeat request feedback information and system thereof - Google Patents
Transmission method for hybrid automatic repeat request feedback information and system thereof Download PDFInfo
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- CN104348595A CN104348595A CN201310320468.4A CN201310320468A CN104348595A CN 104348595 A CN104348595 A CN 104348595A CN 201310320468 A CN201310320468 A CN 201310320468A CN 104348595 A CN104348595 A CN 104348595A
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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
- H04L1/1806—Go-back-N protocols
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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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- 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
- H04L1/1825—Adaptation of specific ARQ protocol parameters according to transmission conditions
Abstract
The invention provides a transmission method for hybrid automatic repeat request (HARQ) feedback information and a system thereof. The method comprises the steps that a transition wireless frame, a first indicating gauge and a second indicating gauge are arranged; an initial uplink and downlink sub-frame ratio is triggered to be switched to a target uplink and downlink sub-frame ratio via the transition wireless frame, the initial uplink and downlink sub-frame ratio is switched to the transition wireless frame, and HARQ feedback information of an uplink transmission shared channel (PUSCH) is transmitted on the last wireless frame before the switching according to the first indicating gauge; and the transition wireless frame is switched to the target uplink and downlink sub-frame ratio, and the HARQ feedback information of the PUSCH is transmitted on the last wireless frame before the switching according to the second indicating gauge. The system comprises a setting unit, a switching processing unit, a first control unit and a second control unit. Error of transmission of the HARQ feedback information can be reduced after switching of the uplink and downlink sub-frame ratio.
Description
Technical field
The present invention relates to the communication technology, be specifically related to transmission method and the system of a kind of hybrid automatic repeat-request (HARQ, Hybrid Automatic Repeat Request) feedback information.
Background technology
Time division duplex Long Term Evolution (TD-LTE) system supports the setting of multiple ratio of uplink subframe to downlink subframe.Wherein, ratio of uplink subframe to downlink subframe is for specifying that each subframe is for uplink or for downlink transfer in a radio frame.Such as, table 1 is a kind of ratio of uplink subframe to downlink subframe table of the use in TD-LTE system.
Table 1
Can find out according to above-mentioned table 1, TD-LTE system supports the setting of multiple ratio of uplink subframe to downlink subframe, in table 1 0th ~ 67 kinds, therefore, can more flexibly according to actual business requirement be base station and user terminal configuration corresponding a kind of ratio of uplink subframe to downlink subframe, base station and user terminal, according to the ratio of uplink subframe to downlink subframe of configuration, carry out the transmission of up-downgoing data in corresponding subframe.
At present, along with developing rapidly of business development, in such as microcellulor (Picocell) community, a lot of community, up-downgoing traffic carrying capacity alters a great deal.If Picocell cell base station and user terminal only carry out downstream transmission according to fixing a kind of ratio of uplink subframe to downlink subframe, then can not adapt to the change of up-downgoing traffic carrying capacity, thus the problem that up-downgoing resource utilization reduces can be caused.In order to solve this problem, be currently suggested a kind of solution: base station and user terminal according to the real-time change of traffic carrying capacity, can switch the ratio of uplink subframe to downlink subframe of downstream transmission institute foundation.Such as, in a period of time, carry out up-downgoing transfer of data according to ratio of uplink subframe to downlink subframe in above-mentioned table 15; When upstream traffic increases suddenly, switch, the ratio of uplink subframe to downlink subframe 0 such as changed into according to sub-frame of uplink in above-mentioned table 1 is many carries out up-downgoing transfer of data.
The way that base station and user terminal switch the ratio of uplink subframe to downlink subframe used can adapt to the change of up-downgoing traffic carrying capacity and improve up-downgoing resource utilization, but after the ratio of uplink subframe to downlink subframe of downstream transmission institute foundation switches, the transmission of the HARQ feedback information in TD-LTE system but there will be exception.The 4th the subframe place being such as defined in next radio frames according to ratio of uplink subframe to downlink subframe 5 in radio frames 1 carries out the transmission of HARQ feedback information, so in next radio frames 2, owing to switching to according to ratio of uplink subframe to downlink subframe 0, according to the ratio of uplink subframe to downlink subframe after switching, the 4th subframe in radio frames 2 is not but descending sub frame, HARQ feedback information cannot be sent, or, although are descending sub frames when other subframe position, but downlink resource deficiency corresponding to this subframe still cannot send HARQ feedback information, thus cause the error of transmission of a large amount of HARQ feedback information.
HARQ feedback information is the information for confirming the transmitting uplink data of user terminal, if there is a large amount of mistake in the transmission of HARQ feedback information, the series of problems such as a large amount of data re-transmission, time delay and packet loss will be caused, thus greatly reduce the performance of system.
Summary of the invention
(1) technical problem solved
For the deficiencies in the prior art, the invention provides a kind of transmission method and system of HARQ feedback information, after ratio of uplink subframe to downlink subframe switches, reduce the mistake of HARQ feedback information transmission.
(2) technical scheme
For realizing above object, the present invention is achieved by the following technical programs:
A transmission method for HARQ feedback information, arranges transition radio frames, the first dial gauge and the second dial gauge; Wherein,
Described first dial gauge comprises the HARQ feedback information transmission instruction switching to the PUSCH channel after described transition radio frames from initial ratio of uplink subframe to downlink subframe; Second dial gauge comprises the HARQ feedback information transmission instruction switching to the PUSCH channel after target ratio of uplink subframe to downlink subframe from described transition radio frames;
Trigger after switching to target ratio of uplink subframe to downlink subframe from initial ratio of uplink subframe to downlink subframe, the method comprises:
S1, switch to described transition radio frames from initial ratio of uplink subframe to downlink subframe, according to described first dial gauge, last radio frames before this switches is transmitted the HARQ feedback information of PUSCH channel;
S2, switch to described target ratio of uplink subframe to downlink subframe from described transition radio frames, according to described second dial gauge, last radio frames before this switches is transmitted the HARQ feedback information of PUSCH channel.
The described transition radio frames that arranges comprises: from all ratio of uplink subframe to downlink subframe, select one as transition radio frames;
Comprise respectively in described first dial gauge and the second dial gauge: for representing the transmission correspondence table of the subframe position of transmitting feedback information; And for the downlink resource allocation list of Physical HARQ Indicator Channel (PHICH, Physical hybrid-ARQ indicator channel) the resource parameters configuration information that represents distribution;
In step S1 and step S2, the HARQ feedback information of described transmission PUSCH channel includes: the PHICH resource parameter configuration of distributing according to downlink resource allocation list, and the subframe position of the corresponding table instruction of transmission is transmitted the HARQ feedback information of PUSCH channel.
Described selection one comprises as transition radio frames: select ratio of uplink subframe to downlink subframe 0 as transition radio frames.
Described step S1 comprises further:
Detecting switches to the duration of described transition radio frames whether to arrive the duration of a radio frames, if so, then performs described step S2.
The method comprises further: according to the transition radio frames of described setting, a PUSCH authorized location relation corresponding when determining to switch to transition radio frames from initial ratio of uplink subframe to downlink subframe, and the 2nd PUSCH authorized location relation corresponding when switching to target ratio of uplink subframe to downlink subframe from transition radio frames;
Described step S1 comprises further: in first radio frames after this switches, and user terminal sends upstream data according to a described PUSCH authorized location relation;
Described step S2 comprises further: in first radio frames after this switches, and user terminal sends upstream data according to described 2nd PUSCH authorized location relation.
A transmission system for HARQ feedback information, comprising:
Setting unit, for arranging transition radio frames and arranging the first dial gauge and the second dial gauge; Wherein, described first dial gauge comprises the HARQ feedback information transmission instruction switching to the PUSCH channel after described transition radio frames from initial ratio of uplink subframe to downlink subframe; Second dial gauge comprises the HARQ feedback information transmission instruction switching to the PUSCH channel after target ratio of uplink subframe to downlink subframe from described transition radio frames;
Switching treatmenting unit, switches to target ratio of uplink subframe to downlink subframe for triggering from initial ratio of uplink subframe to downlink subframe;
First control unit, for the triggering according to described switching treatmenting unit, described transition radio frames is switched to from initial ratio of uplink subframe to downlink subframe, according to described first dial gauge that described setting unit is arranged, last radio frames before this switches is transmitted the HARQ feedback information of PUSCH channel;
Second control unit, for the triggering according to described switching treatmenting unit, described target ratio of uplink subframe to downlink subframe is switched to from described transition radio frames, according to described second dial gauge that described setting unit is arranged, last radio frames before this switches is transmitted the HARQ feedback information of PUSCH channel.
Described setting unit comprises: first arranges subelement and second arranges subelement, wherein,
First arranges subelement, for selecting one as transition radio frames from all ratio of uplink subframe to downlink subframe;
Second arranges subelement, for arranging the first dial gauge and the second dial gauge, comprises the transmission correspondence table of the subframe position representing transmitting feedback information in the first dial gauge and the second dial gauge respectively; And for the downlink resource allocation list of the PHICH resource parameter configuration that represents distribution;
Described first control unit comprises the first transmission and controls subelement, this first transmission controls subelement for the PHICH resource parameter configuration according to downlink resource allocation list in the first dial gauge, the subframe position of the corresponding table instruction of transmission in the first dial gauge is transmitted the HARQ feedback information of PUSCH channel;
Described second control unit comprises the second transmission and controls subelement, this second transmission controls subelement for the PHICH resource parameter configuration according to downlink resource allocation list in the second dial gauge, the subframe position of the corresponding table instruction of transmission in the second dial gauge is transmitted the HARQ feedback information of PUSCH channel.
Described first arranges subelement selects ratio of uplink subframe to downlink subframe 0 as transition radio frames.
Described switching treatmenting unit, described first control unit of further detection switches to the duration of described transition radio frames whether to arrive the duration of a radio frames, if so, then trigger described second control unit and switch to described target ratio of uplink subframe to downlink subframe from described transition radio frames.
Described setting unit, a PUSCH authorized location relation corresponding when further setting switches to transition radio frames from initial ratio of uplink subframe to downlink subframe, and the 2nd PUSCH authorized location relation corresponding when switching to target ratio of uplink subframe to downlink subframe from transition radio frames;
Described first control unit, is further used in first radio frames after this switches, and controls the PUSCH authorized location relation transmission upstream data that user terminal is arranged according to described setting unit;
Described second control unit, is further used in first radio frames after this switches, and controls the 2nd PUSCH authorized location relation transmission upstream data that user terminal is arranged according to described setting unit.
(3) beneficial effect
The present invention at least has following beneficial effect:
1, when needs switch ratio of uplink subframe to downlink subframe, the transmission pre-set about the HARQ feedback information of PUSCH channel between the ratio of uplink subframe to downlink subframe of transition radio frames and switching front and back and transition frames due to the present invention indicates (the first dial gauge and the second dial gauge), like this, only need according to transmission instruction, just can make after ratio of uplink subframe to downlink subframe switches, the transmission of HARQ feedback information is correct, and there will not be ascending-descending subframes conflict or detect incomplete problem.
2, the present invention can select a ratio of uplink subframe to downlink subframe as transition radio frames, and reprovision represents that the transmission correspondence table of the subframe position of transmitting feedback information and reprovision represent the downlink resource allocation list of the PHICH resource parameter configuration of distributing, like this, determine the subframe position that HARQ feedback information is transmitted and downlink resource according to these two tables, then further ensure the correctness of transfer of data.
3, in the present invention, preferably, ratio of uplink subframe to downlink subframe 0 can be set to transition radio frames, need the HARQ feedback information of the PUSCH channel of reprovision to transmit instruction (the first dial gauge and the second dial gauge) less relative to the change of original agreement, be therefore easier to business realizing.
4, in the present invention, preferably, keep the duration of transition radio frames to be only 1 radio frames, therefore, can ensure further to avoid the interference to system data transmission, ensure the correctness of transfer of data.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the transmitting procedure of HARQ feedback information in one embodiment of the invention;
Fig. 2 is the realization flow figure of the inventive method preferred embodiment;
Fig. 3 is PUSCH channel HARQ information feed back schematic diagram in a radio frames;
Fig. 4 is PDSCH channel HARQ information feed back schematic diagram in a radio frames;
Fig. 5 be in the embodiment of the present invention other ratio of uplink subframe to downlink subframe to the PUSCH channel HARQ information corresponding relation schematic diagram of subframe proportioning 0;
Fig. 6 is the PUSCH channel HARQ information corresponding relation schematic diagram that in the embodiment of the present invention, ratio of uplink subframe to downlink subframe 0 arrives other subframe proportionings;
Fig. 7 is the structural representation of the system in one embodiment of the invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
One embodiment of the invention proposes a kind of transmission method of HARQ feedback information, and see Fig. 1, the method comprises:
Step 101: pre-set transition radio frames, the first dial gauge and the second dial gauge.
In this step, first dial gauge comprises when switching to transition radio frames to configure lower radio frames N+1 from the radio frames N initial ratio of uplink subframe to downlink subframe, and the HARQ feedback information transmission of uplink common channel (PUSCH) channel before switching on last radio frames and radio frames N indicates;
Second dial gauge comprises when switching to the radio frames N+2 under target ratio of uplink subframe to downlink subframe from the radio frames N+1 that the configuration of transition radio frames is, and the HARQ feedback information transmission of the PUSCH channel before switching on last radio frames and radio frames N+1 indicates.
Step 102: trigger and switch to target ratio of uplink subframe to downlink subframe from initial ratio of uplink subframe to downlink subframe.
Step 103: switch to transition radio frames from initial ratio of uplink subframe to downlink subframe, according to the first dial gauge, last radio frames before this switches is transmitted the HARQ feedback information of PUSCH channel.
Step 104: switch to target ratio of uplink subframe to downlink subframe from transition radio frames, according to the second dial gauge, last radio frames before this switches is transmitted the HARQ feedback information of PUSCH channel.
When needs switch ratio of uplink subframe to downlink subframe, because the present invention pre-sets transition frames and the first dial gauge and the second dial gauge, first dial gauge and the second dial gauge can indicate the transmission about the HARQ feedback information of PUSCH channel between the ratio of uplink subframe to downlink subframe of switching front and back and transition radio frames, like this, only need the transmission of the HARQ feedback information of carrying out PUSCH channel according to this instruction, the transmission of HARQ feedback information just can be made correct.
In the realization of the embodiment of the present invention, when arranging transition radio frames, a special radio frames with specific uplink and downlink timeslot proportioning can be set up and be used as transition radio frames.
Certainly, when arranging transition radio frames, in order to simplify processes, one preferably realizes being from all existing ratio of uplink subframe to downlink subframe, select one as transition radio frames, and without the need to additional, such as selection ratio of uplink subframe to downlink subframe 0, or ratio of uplink subframe to downlink subframe 4 or ratio of uplink subframe to downlink subframe 5; Now, include in each table of the first dial gauge and the second dial gauge: for representing the transmission correspondence table of the subframe position of transmitting feedback information, be designated as Table A; And for the downlink resource allocation list of the downlink resource number that represents distribution, be designated as table B; Correspondingly, in flow process shown in above-mentioned Fig. 1, the implementation procedure of the HARQ feedback information of transmission PUSCH channel can comprise: the downlink resource distributed according to table B, and the subframe position of Table A instruction is transmitted the HARQ feedback information of PUSCH channel.
In a preferred embodiment of the present invention, by analyzing the feature of 7 kinds of ratio of uplink subframe to downlink subframe in TD-LTE system further, preferably ensure that existing protocol changes minimum ratio of uplink subframe to downlink subframe 0 as transition radio frames.
Due in above-mentioned switching, initial ratio of uplink subframe to downlink subframe is first switched to transition radio frames, and then be switched to target ratio of uplink subframe to downlink subframe, in order to ensure the correctness that HARQ feedback information is transmitted further, the duration of this switching can be set as a radio frames, that is, in above-mentioned steps 103, the duration switching to the duration of described transition radio frames whether to arrive a radio frames can be detected further, if so, then perform subsequent step 104.
In order to adapt to the change of the mandate frame position of the PUSCH channel uplink transmission that ratio of uplink subframe to downlink subframe brings further, in one embodiment of the invention, following process can be adopted further: according to the transition radio frames arranged, a PUSCH authorized location relation corresponding when determining to switch to transition radio frames from initial ratio of uplink subframe to downlink subframe, and the 2nd PUSCH authorized location relation corresponding when switching to target ratio of uplink subframe to downlink subframe from transition radio frames; Like this, in step 103, further, in first radio frames after this switches, user terminal sends upstream data according to a PUSCH authorized location relation; In step 104, further, in first radio frames after this switches, user terminal sends upstream data according to the 2nd PUSCH authorized location relation.
Below to select ratio of uplink subframe to downlink subframe 0 in TD-LTE system as transition radio frames, carry out the implementation procedure of explanation a preferred embodiment of the present invention specifically.
Fig. 2 is the realization flow figure of the inventive method preferred embodiment.See Fig. 2, the method comprises the steps:
Step 201: pre-set ratio of uplink subframe to downlink subframe 0 as transition radio frames.
See above-mentioned table 1, comprising 0 ~ 6 totally 7 kinds of ratio of uplink subframe to downlink subframe in TD-LTE system, by analyzing the feature of these 7 kinds of ratio of uplink subframe to downlink subframe, preferably can change minimum ratio of uplink subframe to downlink subframe 0 as transition radio frames by guarantee agreement.Select ratio of uplink subframe to downlink subframe 0 as follows as the reason of transition radio frames:
In existing protocol, PUSCH channel HARQ information feed back subframe corresponding relation is see as shown in table 2 below.
Table 2
What above-mentioned table 2 represented is for each ratio of uplink subframe to downlink subframe, should send the HARQ feedback information of PUSCH channel in which position after this subframe in the PUSCH channel uplink data of each subframe position place transmission.Such as, for the first row in ratio of uplink subframe to downlink subframe 0(table 2), the numeral of subframe numbers 2 correspondence is " 4 ", to represent in this subframe 2 the PUSCH channel uplink data of transmission, the 4th subframe after this subframe should send the HARQ feedback information of PUSCH channel.
Associative list 1 and table 2, the transmission schematic diagram of the HARQ feedback information of the PUSCH channel of each ratio of uplink subframe to downlink subframe as shown in Figure 3 can be obtained, wherein, as can be seen from Figure 3, ratio of uplink subframe to downlink subframe 4,5 just completes the feedback of the HARQ information of PUSCH channel in this radio frames, therefore, be switched to any ratio of uplink subframe to downlink subframe from ratio of uplink subframe to downlink subframe 4,5 and all there will not be problem.Ratio of uplink subframe to downlink subframe 0 reprovision, to any ratio of uplink subframe to downlink subframe, can have corresponding descending sub frame according to the existing table 2 of standard.If but ratio of uplink subframe to downlink subframe 1,2,3,6 reprovision to other ratio of uplink subframe to downlink subframe time, there will be and not have the situation of corresponding additional downstream subframe to occur.Based on analysis above, switch to reduce ascending-descending subframes as far as possible the impact changed agreement, consider from the HARQ information feed back adjustment of PUSCH, selectable transition radio frames is ratio of uplink subframe to downlink subframe 0,4,5.
But if just do not consider PUSCH channel, and consider the HARQ information feed back of downlink common channel (PDSCH) channel, then ratio of uplink subframe to downlink subframe 4,5 is not suitable as transition radio frames.See Fig. 4, for PDSCH channel HARQ feedback information subframe corresponding diagram, visible ratio of uplink subframe to downlink subframe 4,5 needs the HARQ information of the PDSCH channel fed back in next radio frames more, and the sub-frame of uplink that can be used in sending PDSCH channel HARQ feedback information very little, if elect transition radio frames as, then need to carry out a large amount of changes to agreement, therefore, be unsuitable for as transition subframe.On the contrary, ratio of uplink subframe to downlink subframe 0 needs the HARQ information of the PDSCH channel fed back in next radio frames less, and the sub-frame of uplink that can be used in sending PDSCH channel HARQ feedback information is a lot, therefore, if elect transition radio frames as, relatively minimum to the change of agreement, be suitable for as transition radio frames.
Comprehensive above-mentioned consideration, is chosen as transition radio frames by ratio of uplink subframe to downlink subframe 0.
Step 202: according to the ratio of uplink subframe to downlink subframe 0 selected, pre-sets the transmission correspondence table of the subframe position representing transmitting feedback information; And for the downlink resource allocation list of the PHICH resource parameter configuration that represents distribution.
Due in subsequent treatment, need to be switched to the ratio of uplink subframe to downlink subframe 0(first step from any one ratio of uplink subframe to downlink subframe except ratio of uplink subframe to downlink subframe 0), then any another ratio of uplink subframe to downlink subframe (second step) except ratio of uplink subframe to downlink subframe 0 is switched to from ratio of uplink subframe to downlink subframe 0, therefore, for each step, in this step, all need the transmission correspondence table pre-setting the subframe position representing transmitting feedback information; And for the downlink resource allocation list of the downlink resource number and PHICH resource parameter configuration that represent distribution.The following describes the method to set up shown in this step, comprise the steps:
Step 202-1: for the above-mentioned first step, ratio of uplink subframe to downlink subframe 0 is switched to from initial ratio of uplink subframe to downlink subframe, first dial gauge is set, this first dial gauge comprises 2 tables, that is, represent the transmission correspondence table of the subframe position of the transmitting feedback information reconfigured, be designated as table S-1, represent the downlink resource allocation list of downlink resource number and the PHICH resource parameter configuration redistributed, be designated as table S-2.
Table S-1
Table S-2
See table S-1, because ratio of uplink subframe to downlink subframe 4,5 reprovision all there will not be problem to any ratio of uplink subframe to downlink subframe, the feedback correspondence subframe relation of the PUSCH channel HARQ information of ratio of uplink subframe to downlink subframe 1,2,3,6 reprovision to 0 therefore only need be analyzed.
Fig. 5 is the corresponding subframe relation of feedback of the PUSCH channel HARQ information of ratio of uplink subframe to downlink subframe 1,2,3,6 reprovision to 0 of design.The principle of design is the descending sub frame that interval after the configuration of the feedback subframe ensureing PUSCH channel HARQ information is its subframe is not less than 4 subframes, and under each HARQ feedback information will ensure the prerequisite of the precedence relationship of corresponding PUSCH channel, ensure the consistency of these 3 reconstitution process designs as far as possible.Table S-1 is, when being transitioned into ratio of uplink subframe to downlink subframe 0 from ratio of uplink subframe to downlink subframe 1,2,3,6, the feedback corresponding subframe relation correspondence table of transition radio frames PUSCH channel HARQ information, compare known with table 2, its change is only 2 places, last being respectively ratio of uplink subframe to downlink subframe 1,2 correspondence represents the numeral of timeslot number, therefore, changes less.
See table S-2, in order to be adapted to the table S-1 of new configuration, when being transitioned into ratio of uplink subframe to downlink subframe 0 from other ratio of uplink subframe to downlink subframe, ratio of uplink subframe to downlink subframe there occurs change, therefore, the downlink transfer resource relevant from PHICH group number of transition radio frames is inevitable different with when not occurring that subframe proportioning changes, and can provide above-mentioned table S-2 with reference to figure 5.
Step 202-2: for above-mentioned second step, target ratio of uplink subframe to downlink subframe is switched to from ratio of uplink subframe to downlink subframe 0, second dial gauge is set, this second dial gauge comprises 2 tables, that is, represent the transmission correspondence table of the subframe position of the transmitting feedback information reconfigured, be designated as table P-1, represent the downlink resource allocation list of downlink resource number and the PHICH resource parameter configuration redistributed, be designated as table P-2.
Table P-1
Table P-2
See table P-1, this table P-1 is identical about arranging of ratio of uplink subframe to downlink subframe 0 with existing protocol table 2, and that is, the corresponding relation of the PUSCH channel HARQ feedback information from ratio of uplink subframe to downlink subframe 0 to other proportionings is constant.Its reason is as follows:
As can be seen from Figure 3, when being switched to other any ratio of uplink subframe to downlink subframe from ratio of uplink subframe to downlink subframe 0, need the PUSCH channel HARQ information of #3, #4, #7, #8, the #9 in next radio frames feedback subframe.Known according to the PUSCH channel HARQ feedback information subframe corresponding relation of the ratio of uplink subframe to downlink subframe 0 shown in table 2, need the subframe #0 in next radio frames, #1, #5 complete subframe #3 under ratio of uplink subframe to downlink subframe 0, the feedback of the PUSCH channel HARQ information of #4, #7, #8, #9.As can be seen from Figure 3, no matter any ratio of uplink subframe to downlink subframe, subframe #0, #1, #5 are descending sub frame, can be used for the PUSCH channel HARQ information of the subframe #3 under feedback ratio of uplink subframe to downlink subframe 0, #4, #7, #8, #9, namely when ratio of uplink subframe to downlink subframe #0 is transitioned into any ratio of uplink subframe to downlink subframe, the PUSCH channel HARQ feedback information corresponding relation of ratio of uplink subframe to downlink subframe 0 is constant, namely identical with the corresponding relation for ratio of uplink subframe to downlink subframe 0 shown in table 2, without the need to changing agreement related content.The schematic diagram of this process as shown in Figure 6.
See table P-2, when being transitioned into other ratio of uplink subframe to downlink subframe from ratio of uplink subframe to downlink subframe 0, ratio of uplink subframe to downlink subframe there occurs change, therefore, subframe proportioning after transition inevitable different with when occurring that subframe proportioning changes from the configuration of the downlink resource that PHICH group number is correlated with, the configuring condition of downlink resource relevant to PHICH group number under can providing the ratio of uplink subframe to downlink subframe after renewal with reference to figure 6, as shown in table P-2.Change compared with table 3, be because, under ratio of uplink subframe to downlink subframe in the updated, subframe #0, #1, #5 have needed the feedback of the subframe #3 of transition radio frames, the PUSCH channel HARQ information of #4, #7, #8, #9, therefore identical with the corresponding configuration value of the downlink resource that PHICH group number is correlated with and ratio of uplink subframe to downlink subframe 0 under subframe #0, #1, #5, other amendment parts are before and after changing with ratio of uplink subframe to downlink subframe, and ratio of uplink subframe to downlink subframe changes relevant.
So far, then complete using ratio of uplink subframe to downlink subframe 0 after transition radio frames, the setting of the subframe position of all relevant transmitting feedback informations; And the configuration of downlink resource.
Step 203: according to transition radio frames and ratio of uplink subframe to downlink subframe 0, pre-determines PUSCH authorized location relation 1, and PUSCH authorized location relation 2.
In this step, when PUSCH authorized location relation 1 shows to switch to ratio of uplink subframe to downlink subframe 0 from any one ratio of uplink subframe to downlink subframe, PUSCH authorized location in rear first radio frames of corresponding switching; When PUSCH authorized location relation 2 shows to switch to other any one ratio of uplink subframe to downlink subframe from ratio of uplink subframe to downlink subframe 0, PUSCH authorized location in rear first radio frames of corresponding switching.
Why this step will arrange two position relationships, be because, in business realizing, PUSCH channel is a Uplink Shared Channel, and user terminal shares this PUSCH channel, therefore, before different user terminals sends upstream data, system needs respectively to each user terminal mandate, after user terminal is authorized, could send upstream data.
Owing to have employed the way of transition radio frames, the transmission position of upstream data can change, therefore, the change of the mandate frame position of the PUSCH channel uplink transmission brought in order to the switching adapting to ratio of uplink subframe to downlink subframe further, needs the process performing this step.
In this step, can the consistent principle of establishing criteria perform, namely when uplink subframe number is n(2≤n≤9) time, the descending sub frame of the n-th-k number is its mandate subframe, and wherein the value of k is first descending sub frame of k >=4.
Table M
In above-mentioned table M, 6 row before the relation corresponding PUSCH authorized location relation 1(of ratio of uplink subframe to downlink subframe 1 ~ 6 to ratio of uplink subframe to downlink subframe 0); 6 row after the relation corresponding PUSCH authorized location relation 2(of ratio of uplink subframe to downlink subframe 0 to ratio of uplink subframe to downlink subframe 1 ~ 6).
So far, the embodiment of the present invention then completes pre-configured all processing procedures.
Step 204: trigger and switch to target ratio of uplink subframe to downlink subframe from initial ratio of uplink subframe to downlink subframe.
Here, can be that such as relative to downlink business, uplink service increases severely suddenly, then can trigger the switching of this step when larger change occurs the up-downgoing business of system.Also can be arrive a moment preset and meet certain business change triggers thresholding, triggering the switching of this step, such as, 0 of every night be triggered.
For the switching in this step, for example, the such as initial time ratio of uplink subframe to downlink subframe 4 used, system needs according to service conditions to trigger the ratio of uplink subframe to downlink subframe 6 switching to target.
Step 205: judge whether initial ratio of uplink subframe to downlink subframe is ratio of uplink subframe to downlink subframe 0, if so, directly performs step 211, otherwise, perform step 206.
Step 206: switch to ratio of uplink subframe to downlink subframe 0 from initial ratio of uplink subframe to downlink subframe.
Step 207: in last radio frames before this switches of base station, transmits the HARQ feedback information of PUSCH channel according to table S-1 and S-2.
In this step, radio frames N under initial ratio of uplink subframe to downlink subframe switch to transition radio frames configure under radio frames N+1 time, then in radio frames N, the subframe position of the HARQ feedback information transmitting PUSCH channel in radio frames N is determined according to table S-1 in base station, and obtains the downlink resource needed for transmitting and PHICH resource parameter configuration according to table S-2.
For example, after such as initial ratio of uplink subframe to downlink subframe 4 is switched to ratio of uplink subframe to downlink subframe 0, in table S-1, searches the corresponding subframe relation of feedback of each subframe of ratio of uplink subframe to downlink subframe 4 correspondence, thus complete transmission and the reception of HARQ information.
Step 208: first radio frames after this switches, user terminal carries out the transmission of upstream data according to the PUSCH authorized location relation 1 of configuration in above-mentioned steps 203.
Step 209: detect the current duration switching to the duration of ratio of uplink subframe to downlink subframe 0 whether to arrive a radio frames, if so, then performs step 210, otherwise, return step 209.
In embodiments of the present invention, because ratio of uplink subframe to downlink subframe 0 is transition radio frames, its time kept is unsuitable long, therefore, preferably, in order to ensure the correctness that HARQ feedback information is transmitted further, the duration of this switching can be set as a radio frames, therefore, the duration detecting in this step and be switched to ratio of uplink subframe to downlink subframe 0 is needed to perform.
Step 210: judge whether target ratio of uplink subframe to downlink subframe is ratio of uplink subframe to downlink subframe 0, if so, terminates current process, otherwise, perform step 211.
Step 211: switch to target ratio of uplink subframe to downlink subframe from transition radio frames and ratio of uplink subframe to downlink subframe 0.
Step 212: in last radio frames before this switches of base station, transmits the HARQ feedback information of PUSCH channel according to table P-1 and P-2.
In this step, the radio frames N+2 under the configuration of target ratio of uplink subframe to downlink subframe is switched to during the lower radio frames N+1 of transition radio frames configuration, then in radio frames N+1, the subframe position of the HARQ feedback information transmitting PUSCH channel in transition radio frames and radio frames N+1 is determined according to table P-1 in base station, and obtains the downlink resource needed for transmission according to table P-2.
Step 213: first radio frames after this switches, user terminal carries out the transmission of upstream data according to the PUSCH authorized location relation 2 of configuration in above-mentioned steps 203.
The present embodiment also proposed a kind of transmission system of HARQ feedback information, for the transmission of the HARQ feedback information of PUSCH channel.See Fig. 7, this system comprises:
Setting unit, for arranging transition radio frames and arranging the first dial gauge and the second dial gauge; Wherein, described first dial gauge comprises the HARQ feedback information transmission instruction switching to the PUSCH channel after described transition radio frames from initial ratio of uplink subframe to downlink subframe; Second dial gauge comprises the HARQ feedback information transmission instruction switching to the PUSCH channel after target ratio of uplink subframe to downlink subframe from described transition radio frames;
Switching treatmenting unit, switches to target ratio of uplink subframe to downlink subframe for triggering from initial ratio of uplink subframe to downlink subframe;
First control unit, for the triggering according to described switching treatmenting unit, described transition radio frames is switched to from initial ratio of uplink subframe to downlink subframe, according to described first dial gauge that described setting unit is arranged, last radio frames before this switches is transmitted the HARQ feedback information of PUSCH channel;
Second control unit, for the triggering according to described switching treatmenting unit, described target ratio of uplink subframe to downlink subframe is switched to from described transition radio frames, according to described second dial gauge that described setting unit is arranged, last radio frames before this switches is transmitted the HARQ feedback information of PUSCH channel.
In one embodiment, without the need to the transition radio frames of an additional special construction, and directly can select one as transition radio frames from all existing ratio of uplink subframe to downlink subframe, thus simplify the realization of system, in such cases,
Described setting unit comprises: first arranges subelement and second arranges subelement, wherein,
First arranges subelement, for selecting one as transition radio frames from all ratio of uplink subframe to downlink subframe;
Second arranges subelement, for arranging the first dial gauge and the second dial gauge, includes the transmission correspondence table of the subframe position representing transmitting feedback information in the first dial gauge and the second dial gauge; And for the downlink resource allocation list of the PHICH resource parameter configuration that represents distribution;
Described first control unit comprises the first transmission and controls subelement, this first transmission control subelement be used for according to downlink resource allocation list in the first dial gauge distribute PHICH resource parameter configuration, the subframe position of the corresponding table instruction of transmission in the first dial gauge is transmitted the HARQ feedback information of PUSCH channel;
Described second control unit comprises the second transmission and controls subelement, this second transmission controls the PHICH resource parameter configuration that subelement is used for distributing according to downlink resource allocation list in the second dial gauge, the subframe position of the corresponding table instruction of transmission in the second dial gauge is transmitted the HARQ feedback information of PUSCH channel.
In a preferred embodiment, first arranges subelement specifically selects ratio of uplink subframe to downlink subframe 0 as transition radio frames, thus can make for system configuration change minimum, in such cases, described switching treatmenting unit, judge whether initial ratio of uplink subframe to downlink subframe is ratio of uplink subframe to downlink subframe 0, if so, only triggers the second control unit further; Otherwise judge whether target ratio of uplink subframe to downlink subframe is ratio of uplink subframe to downlink subframe 0, if target ratio of uplink subframe to downlink subframe is ratio of uplink subframe to downlink subframe 0, then only triggers the first control unit.
In a preferred embodiment, above-mentioned switching treatmenting unit detects the first control unit further and switches to the duration of transition radio frames whether to arrive the duration of a radio frames, if so, then trigger the second control unit and switch to target ratio of uplink subframe to downlink subframe from transition radio frames.
Because ratio of uplink subframe to downlink subframe switches, the subframe of whole downstream transmission and resource can be made to change, change to adapt to this kind, can change PUSCH authorized location further, to ensure the correctness of user terminal transmitting uplink data further.In such cases,
Setting unit, a PUSCH authorized location relation corresponding when further setting switches to transition radio frames from initial ratio of uplink subframe to downlink subframe, and the 2nd PUSCH authorized location relation corresponding when switching to target ratio of uplink subframe to downlink subframe from transition radio frames;
First control unit, is further used in first radio frames after this switches, and controls the PUSCH authorized location relation transmission upstream data that user terminal is arranged according to described setting unit;
Second control unit, is further used in first radio frames after this switches, and controls the 2nd PUSCH authorized location relation transmission upstream data that user terminal is arranged according to described setting unit.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a transmission method for hybrid automatic repeat-request HARQ feedback information, is characterized in that, arranges transition radio frames, the first dial gauge and the second dial gauge; Wherein,
Described first dial gauge comprises the HARQ feedback information transmission instruction switching to the PUSCH channel after described transition radio frames from initial ratio of uplink subframe to downlink subframe; Second dial gauge comprises the HARQ feedback information transmission instruction switching to the PUSCH channel after target ratio of uplink subframe to downlink subframe from described transition radio frames;
Trigger after switching to target ratio of uplink subframe to downlink subframe from initial ratio of uplink subframe to downlink subframe, the method comprises:
S1, switch to described transition radio frames from initial ratio of uplink subframe to downlink subframe, according to described first dial gauge, last radio frames before this switches is transmitted the HARQ feedback information of PUSCH channel;
S2, switch to described target ratio of uplink subframe to downlink subframe from described transition radio frames, according to described second dial gauge, last radio frames before this switches is transmitted the HARQ feedback information of PUSCH channel.
2. method according to claim 1, is characterized in that,
The described transition radio frames that arranges comprises: from all ratio of uplink subframe to downlink subframe, select one as transition radio frames;
Comprise respectively in described first dial gauge and the second dial gauge: for representing the transmission correspondence table of the subframe position of transmitting feedback information; And for the downlink resource allocation list of the Physical HARQ Indicator Channel PHICH resource parameter configuration that represents distribution;
In step S1 and step S2, the HARQ feedback information of described transmission PUSCH channel includes: the PHICH resource parameter configuration of distributing according to downlink resource allocation list, and the subframe position of the corresponding table instruction of transmission is transmitted the HARQ feedback information of PUSCH channel.
3. method according to claim 2, is characterized in that,
Described selection one comprises as transition radio frames: select ratio of uplink subframe to downlink subframe 0 as transition radio frames;
After described triggering switches to target ratio of uplink subframe to downlink subframe from initial ratio of uplink subframe to downlink subframe, and before execution step S1, comprise further:
Judge whether initial ratio of uplink subframe to downlink subframe is ratio of uplink subframe to downlink subframe 0, if so, directly perform step S2; Otherwise judge whether target ratio of uplink subframe to downlink subframe is ratio of uplink subframe to downlink subframe 0, if target ratio of uplink subframe to downlink subframe is ratio of uplink subframe to downlink subframe 0, then after executing described step S1, terminate current process.
4. method according to claim 1, is characterized in that, described step S1 comprises further:
Detecting switches to the duration of described transition radio frames whether to arrive the duration of a radio frames, if so, then performs described step S2.
5. method as claimed in any of claims 1 to 4, it is characterized in that, the method comprises further: according to the transition radio frames of described setting, a PUSCH authorized location relation corresponding when determining to switch to transition radio frames from initial ratio of uplink subframe to downlink subframe, and the 2nd PUSCH authorized location relation corresponding when switching to target ratio of uplink subframe to downlink subframe from transition radio frames;
Described step S1 comprises further: in first radio frames after this switches, and user terminal sends upstream data according to a described PUSCH authorized location relation;
Described step S2 comprises further: in first radio frames after this switches, and user terminal sends upstream data according to described 2nd PUSCH authorized location relation.
6. a transmission system for HARQ feedback information, is characterized in that, comprising:
Setting unit, for arranging transition radio frames and arranging the first dial gauge and the second dial gauge; Wherein, described first dial gauge comprises the HARQ feedback information transmission instruction switching to the PUSCH channel after described transition radio frames from initial ratio of uplink subframe to downlink subframe; Second dial gauge comprises the HARQ feedback information transmission instruction switching to the PUSCH channel after target ratio of uplink subframe to downlink subframe from described transition radio frames;
Switching treatmenting unit, switches to target ratio of uplink subframe to downlink subframe for triggering from initial ratio of uplink subframe to downlink subframe;
First control unit, for the triggering according to described switching treatmenting unit, described transition radio frames is switched to from initial ratio of uplink subframe to downlink subframe, according to described first dial gauge that described setting unit is arranged, last radio frames before this switches is transmitted the HARQ feedback information of PUSCH channel;
Second control unit, for the triggering according to described switching treatmenting unit, described target ratio of uplink subframe to downlink subframe is switched to from described transition radio frames, according to described second dial gauge that described setting unit is arranged, last radio frames before this switches is transmitted the HARQ feedback information of PUSCH channel.
7. system according to claim 6, is characterized in that,
Described setting unit comprises: first arranges subelement and second arranges subelement, wherein,
First arranges subelement, for selecting one as transition radio frames from all ratio of uplink subframe to downlink subframe;
Second arranges subelement, for arranging the first dial gauge and the second dial gauge, comprises the transmission correspondence table of the subframe position representing transmitting feedback information in the first dial gauge and the second dial gauge respectively; And for the downlink resource allocation list of the PHICH resource parameter configuration that represents distribution;
Described first control unit comprises the first transmission and controls subelement, this first transmission controls subelement for the PHICH resource parameter configuration according to downlink resource allocation list in the first dial gauge, the subframe position of the corresponding table instruction of transmission in the first dial gauge is transmitted the HARQ feedback information of PUSCH channel;
Described second control unit comprises the second transmission and controls subelement, this second transmission controls subelement for the PHICH resource parameter configuration according to downlink resource allocation list in the second dial gauge, the subframe position of the corresponding table instruction of transmission in the second dial gauge is transmitted the HARQ feedback information of PUSCH channel.
8. system according to claim 7, is characterized in that,
Described first arranges subelement selects ratio of uplink subframe to downlink subframe 0 as transition radio frames;
Described switching treatmenting unit, judges whether initial ratio of uplink subframe to downlink subframe is ratio of uplink subframe to downlink subframe 0, if so, only triggers described second control unit; Otherwise judge whether target ratio of uplink subframe to downlink subframe is ratio of uplink subframe to downlink subframe 0, if target ratio of uplink subframe to downlink subframe is ratio of uplink subframe to downlink subframe 0, then only trigger described first control unit.
9. system according to claim 6, is characterized in that,
Described switching treatmenting unit, described first control unit of further detection switches to the duration of described transition radio frames whether to arrive the duration of a radio frames, if so, then trigger described second control unit and switch to described target ratio of uplink subframe to downlink subframe from described transition radio frames.
10., according to the system in claim 6 to 9 described in any one, it is characterized in that,
Described setting unit, a PUSCH authorized location relation corresponding when further setting switches to transition radio frames from initial ratio of uplink subframe to downlink subframe, and the 2nd PUSCH authorized location relation corresponding when switching to target ratio of uplink subframe to downlink subframe from transition radio frames;
Described first control unit, is further used in first radio frames after this switches, and controls the PUSCH authorized location relation transmission upstream data that user terminal is arranged according to described setting unit;
Described second control unit, is further used in first radio frames after this switches, and controls the 2nd PUSCH authorized location relation transmission upstream data that user terminal is arranged according to described setting unit.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888340A (en) * | 2016-09-30 | 2018-04-06 | 中兴通讯股份有限公司 | Reply process, response configuration, information transferring method, device, terminal and base station |
| CN110291738A (en) * | 2017-02-28 | 2019-09-27 | Oppo广东移动通信有限公司 | Hybrid automatic repeat-request feedback method and equipment |
| WO2020038340A1 (en) * | 2018-08-20 | 2020-02-27 | 华为技术有限公司 | Harq feedback method and device |
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| CN101615947B (en) * | 2008-06-24 | 2016-10-05 | 华为技术有限公司 | Configuration ratio of uplink subframe to downlink subframe method and the method for data transmission, device |
| CN102271336B (en) * | 2010-06-04 | 2014-06-11 | 中兴通讯股份有限公司 | System and method for semi-statically configuring uplink and downlink proportion |
| CN102035594B (en) * | 2010-12-09 | 2015-05-13 | 中兴通讯股份有限公司 | Data transmitting method and device and radio frame |
| KR101859594B1 (en) * | 2011-03-10 | 2018-06-28 | 삼성전자 주식회사 | Method and Apparatus for Supporting Flexible Time Division Duplex in Communication System |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888340A (en) * | 2016-09-30 | 2018-04-06 | 中兴通讯股份有限公司 | Reply process, response configuration, information transferring method, device, terminal and base station |
| CN110291738A (en) * | 2017-02-28 | 2019-09-27 | Oppo广东移动通信有限公司 | Hybrid automatic repeat-request feedback method and equipment |
| US11133899B2 (en) | 2017-02-28 | 2021-09-28 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Hybrid automatic repeat request feedback method and device |
| CN110291738B (en) * | 2017-02-28 | 2021-11-23 | Oppo广东移动通信有限公司 | Hybrid automatic repeat request feedback method and device |
| WO2020038340A1 (en) * | 2018-08-20 | 2020-02-27 | 华为技术有限公司 | Harq feedback method and device |
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