CN101631009B - Method and device for retransmitting transmission blocks and terminal device - Google Patents
Method and device for retransmitting transmission blocks and terminal device Download PDFInfo
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- CN101631009B CN101631009B CN 200810137943 CN200810137943A CN101631009B CN 101631009 B CN101631009 B CN 101631009B CN 200810137943 CN200810137943 CN 200810137943 CN 200810137943 A CN200810137943 A CN 200810137943A CN 101631009 B CN101631009 B CN 101631009B
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Abstract
The invention discloses a method for retransmitting transmission blocks, which comprises the following steps: setting retransmission window, wherein the time length of the retransmission window is N*20 milliseconds, the retransmission window moves forward for 20 milliseconds at intervals of 20 milliseconds, and N represents the number of sending times of first transmission bocks in the retransmission window; numbering each one of the first transmission bocks in the retransmission window, wherein the serial number is used for marking the only corresponding first transmission bock; and when retransmitting the first transmission bocks, carrying the serial numbers of the first transmission bocks retransmitted in the retransmission window in retransmission control information. The invention also provides a device for retransmitting the transmission blocks and user equipment. Through the method, the first transmission blocks corresponding to the retransmission of the transmission blocks in a VoIP service can be determined.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of transmission block repeating method and device, terminal equipment.
Background technology
At present, mix automatic repeat requests (Hybrid ARQ, abbreviating HARQ as) mechanism adopts that N road concurrent process is stopped etc., and mode sends and retransmits transmission block (transportblock abbreviates TB as) between layer 1 peer-entities, is used for improving the reliability that transmission block successfully sends.Wherein, at down direction, each HARQ process is identified with HARQ process identification (PID) (HARQ Process identifier), and wherein, HARQ is first to be passed and the same HARQ process of HARQ re-transmission use, shares same HARQ process identification (PID).
Physical Downlink Control Channel (Physical Downlink Control Channel, abbreviate PDCCH as) for carrying the downlink resource assignment information, wherein, the downlink resource assignment information comprises Radio Network Temporary Identifier (being used for marking terminal), HARQ process identification (PID), new data indication (New data indicator), Modulation and Coding Scheme (Modulation and codingscheme, abbreviate MCS as), information such as redundancy versions, terminal receives resource at PDCCH and distributes by monitoring PDCCH.
Internet protocol voice (Voice over Internet Protocol abbreviates VoIP as) are professional to use descending semi-persistent scheduling, for the persistent resource of its distribution is the cycle with 20ms, and shares same HARQ process.
Wherein, in descending semi-persistent scheduling, the first biography of HARQ used persistent resource, but the base station only will comprise that by the PDCCH channel persistent resource information distribution of HARQ process identification (PID) is to terminal when activating persistent resource.Terminal is preserved assigned persistent resource, the first persistent resource information that no longer needs to comprise by the indication of PDCCH channel the HARQ process identification (PID) that passes of HARQ afterwards, and terminal uses the persistent resource information of preserving to resolve the biography transmission block of informing against.Fig. 1 shows and uses persistent resource to carry out the schematic diagram that HARQ retransmits, as shown in Figure 1, carry persistent resource information among the PDCCH, the base station sends the first transmission block 1 that passes for the first time according to this persistent resource information, terminal receives this head according to above-mentioned persistent resource and passes transmission block 1, and preservation persistent resource, when the base station sends head biography transmission block afterwards, for example head passes transmission block 2, when head passes transmission block 3, do not need the PDCCH channel to carry out the indication that resource is distributed, the base station sends transmission block according to persistent resource, and terminal receives transmission block according to the persistent resource of preserving, the first interval that passes between transmission block transmission opportunity all is 20 milliseconds, first biography transmission block sends and then send the first transmission block that passes opportunity when data is arranged, and is sky when not having data, as shown in Figure 1,40 milliseconds of places do not have data, then are empty.First transmission block 1, first biography transmission block 2 and the first transmission block 3 that passes of passing shares same HARQ process, that is, these three transmission blocks share same HARQ process identification (PID).
In descending semi-persistent scheduling, HARQ retransmits and uses asynchronous adaptive mode to carry out dynamic dispatching, each re-transmission all needs to comprise by the PDCCH indication downlink resource assignment information of HARQ process identification (PID), this resource is dynamic assignment, Fig. 2 shows the schematic diagram that uses adaptive mode to carry out the dynamic dispatching of HARQ re-transmission, as shown in Figure 2, pass the situation that transmission block retransmits 2 times for head, retransmit for the first time transmission block and retransmit transmission block all comprises the HARQ process identification (PID) in advance by the PDCCH indication downlink resource assignment information for the second time, dynamically obtain to send after the resource.Because the first biography of HARQ and HARQ retransmit the same HARQ process of using, and share same HARQ process identification (PID), therefore retransmit transmission block the first time, retransmit transmission block and the first transmission block 1 that passes for the second time, share same HARQ process identification (PID).
Pass and the same HARQ process of HARQ re-transmission use because HARQ is first, share same HARQ process identification (PID), then ideally, retransmission processes and the first procedure correlation that passes can be got up, make and recipient's (for example terminal) know that this re-transmission is the re-transmission about which transmission block.For example, current have 2 HARQ processes, distinguish with HARQ process identification (PID) 3 and HARQ process identification (PID) 5 respectively, terminal receives the re-transmission transmission block, the HARQ process identification (PID) of this re-transmission transmission block of indication is 5 among the corresponding PDCCH, and terminal passes the re-transmission of transmission block with regard to knowing head that this re-transmission transmission block is No. 5 HARQ processes so.
But when utilizing said method that the VoIP business is carried out descending semi-persistent scheduling, retransmission processes then has problems.Fig. 3 shows the schematic diagram that the VoIP business is carried out retransmission processes generation problem in the descending semi-persistent scheduling, as shown in Figure 3, owing to retransmit transmission block and first the biography between the transmission block, the first biography between transmission block and the first biography transmission block, all utilize same HARQ process identification (PID) to come mark, namely the head among the figure passes transmission block 1, first transmission block 2, first transmission block 3 and two re-transmission transmission blocks of passing of passing, and 5 transmission blocks all use same HARQ process identification (PID) altogether.For recipient (for example terminal), can't learn that retransmitting transmission block is corresponding which first re-transmission that passes transmission block.Retransmit transmission block for first, do not know that the first transmission block 1 that passes still is the first re-transmission that passes transmission block 2; For second re-transmission transmission block, do not know that it still is the first re-transmission that transmission block 2 still is head biography transmission block 3 that passes that head passes transmission block 1.Do not know it is which first re-transmission that passes transmission block, just can't obtain correct transmission block information, cause the recipient to handle and merge data.That is to say, owing to can't judge that retransmitting transmission block is corresponding which first re-transmission that passes transmission block, will cause retransmission processes unavailable, and then cause the unavailable of the failure of VoIP business and VoIP business.
Summary of the invention
Consider and can't know in the VoIP business that exists in the correlation technique that the head that retransmits the transmission block correspondence passes the problem of transmission block and proposes the present invention, for this reason, main purpose of the present invention is to provide a kind of transmission block repeating method and device, to address the above problem.
According to an aspect of the present invention, provide a kind of transmission block repeating method.
Transmission block repeating method according to the embodiment of the invention comprises: retransmission window is set, wherein, the time span of retransmission window is N * 20 millisecond, and every 20 milliseconds, retransmission window moves forward 20 milliseconds, wherein, N represents in the retransmission window number on the first transmission opportunity that passes transmission block, and the value of N is the integer more than or equal to 1; Each first transmission block that passes in the retransmission window is numbered, and the head that numbering is used for its correspondence of unique identification passes transmission block; When carrying out the re-transmission of head biography transmission block, in retransmitting control information, carry the numbering that the head that retransmits in the retransmission window passes transmission block.
Wherein, above-mentioned carrying in retransmitting control information is used to indicate the numbering that the head that needs in the current retransmission window to retransmit passes transmission block and specifically comprises: be to carry numbering in the MCS information at the modulating-coding that retransmits control information; Perhaps, in the power control commands information that retransmits control information, carry numbering; Perhaps, in retransmitting control information, independent control information is set and carries numbering.
Preferably, the zero hour of retransmission window be the head of any transmission block passes opportunity constantly add arbitrary more than or equal to 0 millisecond and less than 20 milliseconds skew.
According to an aspect of the present invention, provide a kind of transmission block repeating method.
Transmission block repeating method according to the embodiment of the invention comprises: terminal equipment receives and retransmits control information, wherein, retransmits in the control information and carries the numbering that the head that retransmits in the retransmission window passes transmission block; Terminal equipment determines that according to numbering the head that retransmits the transmission block correspondence passes transmission block.
According to a further aspect in the invention, provide a kind of transmission block retransmission arrangement.
The transmission block retransmission arrangement comprises according to an embodiment of the invention: module is set, be used for arranging retransmission window, wherein, the time span of retransmission window is N * 20 millisecond, and every 20 milliseconds, retransmission window moves forward 20 milliseconds, and wherein, N represents in the retransmission window number on the first transmission opportunity that passes transmission block; The numbering module is used for each first transmission block that passes of retransmission window is numbered, and the head that numbering is used for its correspondence of unique identification passes transmission block; Retransmission module when being used for carrying out the re-transmission of head biography transmission block, carries the numbering that the head that retransmits in the retransmission window passes transmission block in retransmitting control information.
Wherein, above-mentioned retransmission module is that MCS information is carried numbering for the modulating-coding in the re-transmission control information specifically; Perhaps, in the power control commands information that retransmits control information, carry numbering; Perhaps, in retransmitting control information, independent control information is set and carries numbering.
Preferably, above-mentionedly moment that the head that is set to any transmission block the zero hour that module can also be used for retransmission window pass opportunity is set adds arbitrary more than or equal to 0 millisecond and less than 20 milliseconds skew.
Wherein, the value of N is the integer more than or equal to 1.
According to a further aspect in the invention, provide a kind of terminal equipment.
Terminal equipment comprises according to an embodiment of the invention: receiver module, terminal equipment receive and retransmit control information, wherein, retransmit in the control information and carry the numbering that the head that retransmits in the retransmission window passes transmission block; Determination module is used for determining that according to numbering the head that retransmits the transmission block correspondence passes transmission block.
By above-mentioned at least one technical scheme of the present invention, can determine that the head that retransmits the transmission block correspondence in the VoIP business passes transmission block.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram that carries out the HARQ re-transmission according to the use persistent resource of correlation technique;
Fig. 2 is the schematic diagram that carries out the dynamic dispatching of HARQ re-transmission according to the use adaptive mode of correlation technique;
Fig. 3 is the schematic diagram that carries out retransmission processes generation problem in the descending semi-persistent scheduling according to the VoIP business of correlation technique;
Fig. 4 is the flow chart according to the transmission block repeating method of the inventive method embodiment;
Fig. 5 is the flow chart of handling according to the base station side of the inventive method embodiment;
Fig. 6 is the schematic diagram according to the example one of the inventive method embodiment;
Fig. 7 is the schematic diagram according to the example two of the inventive method embodiment;
Fig. 8 is the schematic diagram according to the example three of the inventive method embodiment;
Fig. 9 is the schematic diagram according to the example four of the inventive method embodiment;
Figure 10 is the flow chart according to the transmission block repeating method of the inventive method embodiment;
Figure 11 is the flow chart of handling according to the end side of the inventive method embodiment;
Figure 12 is the structural framing figure according to the transmission block retransmission arrangement of apparatus of the present invention embodiment;
Figure 13 is the structural framing figure according to the terminal equipment of apparatus of the present invention embodiment.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing.
Method embodiment
According to the embodiment of the invention, provide a kind of transmission block repeating method.
Fig. 4 is the flow chart according to the transmission block repeating method of the embodiment of the invention, and as shown in Figure 4, this method may further comprise the steps:
Step S402 arranges retransmission window, wherein, the time span of retransmission window is N * 20 millisecond, and every 20 milliseconds, retransmission window moves forward 20 milliseconds, wherein, N represents in the retransmission window number on the first transmission opportunity that passes transmission block, and the value of N is the integer more than or equal to 1;
Step S404 is numbered each the first transmission block that passes in the retransmission window, and the head that numbering is used for its correspondence of unique identification passes transmission block;
Step S406 when carrying out the re-transmission of first biography transmission block, carries the numbering that the head that retransmits in the retransmission window passes transmission block in retransmitting control information.
By the technical scheme that the embodiment of the invention provides, can determine that the head that retransmits the transmission block correspondence in the VoIP business passes transmission block.
Wherein, in step S406.In retransmitting control information, carry and be used to indicate the numbering that the head that needs in the current retransmission window to retransmit passes transmission block and specifically comprise: be to carry numbering in the MCS information at the modulating-coding that retransmits control information; Perhaps, in the power control commands information that retransmits control information, carry numbering; Perhaps, in retransmitting control information, independent control information is set and carries numbering.
Preferably, the zero hour of retransmission window be the head of any transmission block passes opportunity constantly add arbitrary more than or equal to 0 millisecond and less than 20 milliseconds skew.
Fig. 5 is the flow chart of handling according to the base station side of the inventive method embodiment, as shown in Figure 5, the base station finds that the first transmission block that passes of the firstTB (n) in the retransmission window needs to retransmit, the base station sends PDCCH to terminal equipment, and extend this as value (n) (namely in the content that retransmits the reserved value of control information (as MCS and or power control commands) or increase a new control information of PDCCH, numbering mentioned above), the base station sends the first re-transmission transmission block that passes transmission block of firstTB (n) in the resource of PDCCH indication, at present, PDCCH carries following at least control information: Resource Block is assigned, MCS, the HARQ process identification (PID), the new data indication, redundancy versions, power control commands, wherein, MCS is a control information of carrying among the PDCCH, in order to modulation system and the coded system of designation data.MCS takies 5 bits, span from 0 to 31, and totally 32 values may.In existing protocol and system realize, MCS these 32 values may in, each value may all not used, also stayed several reserved value not use, also can be in other fields, as power control commands etc., also there is such situation to exist, stayed several reserved value not use.
Example one
Fig. 6 is the schematic diagram according to the example one of the inventive method embodiment, as shown in Figure 6, as can be seen, retransmission window is set, N=3, the starting point of this retransmission window is the some first biographies moment on opportunity, and length is 20 milliseconds * 3=60 millisecond, in this retransmission window, can send has 3 the first opportunity that passes transmission block, can send the head that sends the first opportunity that passes transmission block at each passes transmission block and represents with { firstTB (1), firstTB (2), firstTB (3) }.
Utilize existing control information among the PDCCH, reserved value is set, 3 reserved value can be set in the MCS of this control information, these 3 values are represented with { value (1), value (2), value (3) } respectively.
If the reserved value of the MCS that the base station sends to terminal in PDCCH is designated as value (2), terminal is learnt the transmission block that PDCCH distributes this resource to transmit, first hollow block among the figure just, being the first re-transmission that passes transmission block of firstTB (2), is the first re-transmission transmission block that passes transmission block of firstTB (2); Reserved value by MCS among the PDCCH is designated as value (1), thereby learn the transmission block that PDCCH distributes this resource to transmit, just second hollow block among the figure is the first re-transmission that passes transmission block of firstTB (1), is the first re-transmission transmission block that passes transmission block of firstTB (1).
Example two
Fig. 7 is the schematic diagram according to the example two of the inventive method embodiment, as shown in Figure 7, as can be seen, retransmission window is set, N=3, the starting point of this retransmission window is the moment on some first biographies opportunity to add 2 milliseconds skew, and length is 20 milliseconds * 3=60 millisecond, in this retransmission window, can send has 3 the first opportunity that passes transmission block, can send the head that sends the first opportunity that passes transmission block at each passes transmission block and represents with { firstTB (1), firstTB (2), firstTB (3) }.
Utilize existing control information among the PDCCH, reserved value is set, 3 reserved value can be set in the MCS of this control information, these 3 values are represented with { value (1), value (2), value (3) } respectively.
Reserved value by power control commands among the PDCCH is designated as value (2), thereby learn the transmission block that PDCCH distributes this resource to transmit, just first hollow block among the figure is the first re-transmission that passes transmission block of firstTB (2), is the first re-transmission transmission block that passes transmission block of firstTB (2); Reserved value by power control commands among the PDCCH is designated as value (1), thereby learn the transmission block that PDCCH distributes this resource to transmit, just second hollow block among the figure is the first re-transmission that passes transmission block of firstTB (1), is the first re-transmission transmission block that passes transmission block of firstTB (1).
Example three
Fig. 8 is the schematic diagram according to the example three of the inventive method embodiment, as shown in Figure 8, as can be seen, retransmission window is set, N=3, the starting point of this retransmission window is the some first biographies moment on opportunity, length is 20 milliseconds * 3=60 millisecond, in this retransmission window, have 3 the opportunity that can send head biography transmission block, can send the head that sends the first opportunity that passes transmission block at each and pass transmission block { firstTB (1), firstTB (2), firstTB (3) } represent that each can send and all send first biography transmission block the first opportunity that passes transmission block.What note is, numbering is not come number consecutively according to chronological order, and the explanation of this example can be broken up numbering, and needing only each other, number does not overlap.
Utilize existing control information among the PDCCH, reserved value is set, 3 reserved value can be set in the MCS of this control information, these 3 values are represented with { value (1), value (2), value (3) } respectively.
Value by control information new among the PDCCH is designated as value (1), thereby learn the transmission block that PDCCH distributes this resource to transmit, just first hollow block among the figure is the first re-transmission that passes transmission block of firstTB (1), is the first re-transmission transmission block that passes transmission block of firstTB (1); Value by control information new among the PDCCH is designated as value (3), thereby learn the transmission block that PDCCH distributes this resource to transmit, just second hollow block among the figure is the first re-transmission that passes transmission block of firstTB (3), is the first re-transmission transmission block that passes transmission block of firstTB (3).
Example four
Fig. 9 is the schematic diagram according to the example four of the inventive method embodiment, as shown in Figure 9, as can be seen, retransmission window is set, N=3, the starting point of this retransmission window is the some first biographies moment on opportunity, and length is 20 milliseconds * 3=60 millisecond, in this retransmission window, can send has 3 the first opportunity that passes transmission block, can send the head that sends the first opportunity that passes transmission block at each passes transmission block and represents with { firstTB (1), firstTB (2), firstTB (3) }.Opportunity 1 and the opportunity 3 that can send head biography transmission block have all sent first biography transmission block, do not send first biography transmission block the first opportunity 2 that passes transmission block but can send, and think empty so firstTB (2) head passes transmission block.
Utilize existing control information among the PDCCH, reserved value is set, 3 reserved value can be set in the MCS of this control information, these 3 values are represented with { value (1), value (2), value (3) } respectively.
Reserved value by MCS among the PDCCH is designated as value (1), thereby learn the transmission block that PDCCH distributes this resource to transmit, just first hollow block among the figure is the first re-transmission that passes transmission block of firstTB (1), being the first re-transmission transmission block that passes transmission block of firstTB (1), is to retransmit for the first time; Reserved value by MCS among the PDCCH is designated as value (1), thereby learn the transmission block that PDCCH distributes this resource to transmit, just second hollow block among the figure is the first re-transmission that passes transmission block of firstTB (1), being the first re-transmission transmission block that passes transmission block of firstTB (1), is to retransmit for the second time.
According to the embodiment of the invention, provide a kind of transmission block repeating method.
Figure 10 is the flow chart according to the transmission block repeating method of the embodiment of the invention, and as shown in figure 10, this method may further comprise the steps:
Step S1002, terminal equipment receive and retransmit control information, wherein, retransmit in the control information and carry the numbering that the head that retransmits in the retransmission window passes transmission block;
Step S1004, terminal equipment determines that according to numbering the head that retransmits the transmission block correspondence passes transmission block.
By the technical scheme that the embodiment of the invention provides, can determine that the head that retransmits the transmission block correspondence in the VoIP business passes transmission block.
Figure 11 is the flow chart of handling according to the terminal equipment side of the inventive method embodiment, as shown in figure 11, terminal is obtained PDCCH indication, and the reserved value (as MCS and or power control commands) by the existing control information of PDCCH or the content that increases a new control information of PDCCH extend this as value (n) and learn that the re-transmission transmission block that sends in the resource of this PDCCH indication is the first re-transmission transmission block that passes transmission block of firstTB (n).
Device embodiment
Figure 12 shows the transmission block retransmission arrangement schematic diagram according to the embodiment of the invention, and as shown in figure 12, this device comprises:
Module 10 is set, be used for arranging retransmission window, wherein, the time span of retransmission window is N * 20 millisecond, and every 20 milliseconds, retransmission window moves forward 20 milliseconds, wherein, N represents in the retransmission window number on the first transmission opportunity that passes transmission block, and the value of N be the integer more than or equal to 1, and this arranges moment that module 10 can also pass opportunity for the head that is set to any transmission block the zero hour of retransmission window and adds arbitrary more than or equal to 0 millisecond and less than 20 milliseconds skew;
Retransmission module 30, when being used for carrying out the re-transmission of head biography transmission block, in retransmitting control information, carry the numbering that the head that retransmits in the retransmission window passes transmission block, this module can be connected to module 10 and numbering module 20 are set, and it is that MCS information is carried numbering that this retransmission module 30 can specifically be used at the modulating-coding that retransmits control information; Perhaps, in the power control commands information that retransmits control information, carry numbering; Perhaps, in retransmitting control information, independent control information is set and carries numbering.
By the transmission block retransmission arrangement that the embodiment of the invention provides, can determine that the head that retransmits the transmission block correspondence in the VoIP business passes transmission block.
Figure 13 shows the structural framing figure according to the terminal equipment of the embodiment of the invention, and as shown in figure 13, this terminal equipment comprises:
Receiver module 12, terminal equipment receive and retransmit control information, wherein, retransmit in the control information and carry the numbering that the head that retransmits in the retransmission window passes transmission block;
Determination module 14 is used for determining that according to numbering the head that retransmits the transmission block correspondence passes transmission block that this module can be connected to receiver module 12.
By the terminal equipment that the embodiment of the invention provides, can determine that the head that retransmits the transmission block correspondence in the VoIP business passes transmission block.
As mentioned above, by means of transmission block repeating method provided by the invention and/or device, terminal equipment, can determine that the head that retransmits the transmission block correspondence in the VoIP business passes transmission block, make that the processing of retransmission processes is correct and feasible, and being generally 3 with N calculates, retransmission window length is 60 milliseconds, just means that also a first transmission block that passes can have 60 milliseconds re-transmission time, greatly promotes quality of service.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a transmission block repeating method is characterized in that, comprising:
Retransmission window is set, and wherein, the time span of described retransmission window is N * 20 millisecond, and every 20 milliseconds, described retransmission window moves forward 20 milliseconds, and wherein, N represents the number on the first transmission opportunity that passes transmission block in the described retransmission window;
Each first transmission block that passes in the described retransmission window is numbered, and the head that described numbering is used for its correspondence of unique identification passes transmission block;
When carrying out the re-transmission of head biography transmission block, in retransmitting control information, carry the numbering that the head that retransmits in the described retransmission window passes transmission block.
2. method according to claim 1 is characterized in that, described carrying in retransmitting control information is used to indicate the numbering that the head that needs in the current retransmission window to retransmit passes transmission block and specifically comprises:
In the Modulation and Coding Scheme MCS of described re-transmission control information information, carry described numbering; Perhaps
In the power control commands information of described re-transmission control information, carry described numbering; Perhaps
In described re-transmission control information, independent control information is set and carries described numbering.
3. method according to claim 1 is characterized in that, the zero hour of described retransmission window be the head of any transmission block passes opportunity constantly add arbitrary more than or equal to 0 millisecond and less than 20 milliseconds skew.
4. according to each described method in the claim 1 to 3, it is characterized in that the value of N is the integer more than or equal to 1.
5. a transmission block repeating method is characterized in that, comprising:
Terminal equipment receives and retransmits control information, wherein, carries the numbering that the head that retransmits in the retransmission window passes transmission block in the described re-transmission control information, and the head that described numbering is used for its correspondence of unique identification passes transmission block;
Described terminal equipment determines that according to described numbering the head that retransmits the transmission block correspondence passes transmission block.
6. a transmission block retransmission arrangement is characterized in that, comprising:
Module is set, is used for retransmission window is set, wherein, the time span of described retransmission window is N * 20 millisecond, and every 20 milliseconds, described retransmission window moves forward 20 milliseconds, and wherein, N represents the number on the first transmission opportunity that passes transmission block in the described retransmission window;
The numbering module is used for each first transmission block that passes of described retransmission window is numbered, and the head that described numbering is used for its correspondence of unique identification passes transmission block;
Retransmission module when being used for carrying out the re-transmission of head biography transmission block, carries the numbering that the head that retransmits in the described retransmission window passes transmission block in retransmitting control information.
7. device according to claim 6 is characterized in that, described retransmission module specifically is used for carrying described numbering in the Modulation and Coding Scheme MCS of described re-transmission control information information; Perhaps, in the power control commands information of described re-transmission control information, carry described numbering; Perhaps, in described re-transmission control information, independent control information is set and carries described numbering.
8. device according to claim 6 is characterized in that, describedly moment that the head that is set to any transmission block the zero hour that module is used for retransmission window passes opportunity is set adds arbitrary more than or equal to 0 millisecond and less than 20 milliseconds skew.
9. according to each described device in the claim 6 to 8, it is characterized in that the value of N is the integer more than or equal to 1.
10. a terminal equipment is characterized in that, comprising:
Receiver module, terminal equipment receive and retransmit control information, wherein, carry the numbering that the head that retransmits in the retransmission window passes transmission block in the described re-transmission control information, and the head that described numbering is used for its correspondence of unique identification passes transmission block;
Determination module is used for determining that according to described numbering the head that retransmits the transmission block correspondence passes transmission block.
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| CN103039030B (en) * | 2010-07-02 | 2016-08-03 | 三星电子株式会社 | Perform the method and apparatus that automatic repeat request resets in a wireless communication environment |
| CN105429738A (en) * | 2011-04-01 | 2016-03-23 | 华为技术有限公司 | Data transmission method, device and system |
| US9912504B2 (en) * | 2014-07-31 | 2018-03-06 | Futurewei Technologies, Inc. | System and method for multiple carrier transmission |
| CN109478958B (en) * | 2016-06-30 | 2020-09-18 | 华为技术有限公司 | Data transmission method, equipment and system |
| CN107071558A (en) * | 2017-05-09 | 2017-08-18 | 深圳市炜光科技有限公司 | Video segmentation host-host protocol method and system |
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| CN1667994A (en) * | 2004-03-12 | 2005-09-14 | 华为技术有限公司 | A method for preventing state variable from abnormal update |
| CN1767423A (en) * | 2005-11-25 | 2006-05-03 | 中兴通讯股份有限公司 | Data transmission control method in multi carrier wave high-speed downlink packet access system |
| CN101212283A (en) * | 2006-12-25 | 2008-07-02 | 华为技术有限公司 | Method for transporting acknowledged information/non-acknowledged information in communication system |
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