CN101741525A - Method and system for processing data retransmission of hybrid automatic retransmission request - Google Patents
Method and system for processing data retransmission of hybrid automatic retransmission request Download PDFInfo
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Abstract
The invention discloses a method and a system for processing data retransmission of hybrid automatic retransmission request (HARQ). The method is used for retransmitting HARQ data between a base station and a terminal under resource constant dispatching, and comprises the following operations that: the base station provides a persistent allocation resource region for constant dispatching data, and informs the terminal of persistent allocation resource region information so that the terminal stores the persistent allocation resource region information; the base station allocates a retransmission region for the HARQ retransmission data; and the base station sends retransmission resource mapping information which carries retransmission region position information and retransmission resource bitmap information to the terminal, wherein the retransmission region position information is used for indicating the initial position of the retransmission region, and the retransmission resource bitmap information is used for indicating whether each data packet is retransmitted or not. The method and the system reduce the idle message overhead of the resource allocation information of the HARQ data retransmission.
Description
Technical field
The present invention relates to the communications field, in particular to the data re-transmission processing method and the system of the automatic repeat requests of a kind of mixing (Hybrid Automatic Repeat Request abbreviates HARQ as).
Background technology
At micro-wave access to global intercommunication (World Interoperability for MicrowaveAccess, abbreviate WiMAX as) in the system, base station (Base Station, abbreviate BS as) and terminal (Mobile Station, abbreviate MS as) between information exchange need distribute corresponding on/downlink resource, the distribution of resource and discharging by resource mapping (MAP) message is indicated.
For having periodically characteristics and packet size and the geostationary business of modulation coding mode, the WiMAX system has adopted the mode of a kind of fixed allocation (Persistent Allocation abbreviates PA as) to come management resource.When periodic traffic begins, BS distributes fixing resource to give MS, and send and comprise that accordingly the MAP message of PA is to MS, this MAP message only sends once when beginning, afterwards, MS uses the fixed resource of distributing to it to come transceive data, just upgrades or stop this PA distribution when resource release or resource changing.Therefore, the method for PA distribution can significantly reduce the expense of the MAP message of resource allocation.
But, in relevant PA distribution method, do not stipulate the resource distribution mode of HARQ data re-transmission.But in up-to-date WiMAX air interface standard, adopting the PA mode to carry out under the resource allocation conditions, the HARQ data re-transmission need be to resource allocation parameters information such as each data retransmission bag difference allocated resource piece position, size and modulation coding modes.In fact, under the situation that adopts the PA mode to distribute, the resource allocation parameters of HARQ data retransmission bag can be identical with former data sub-packets, that is to say, former data sub-packets corresponding in the size of the data sub-packets of re-transmission and modulation coding mode etc. and the PA zone is identical.Therefore, in the retransmission process process of present HARQ, BS is described the resource allocation parameters information of each HARQ data retransmission bag in the resource MAP message that MS sends, and has increased overhead.
Summary of the invention
At in the retransmission process process of relevant HARQ, BS resource allocation parameters information to each HARQ data retransmission bag in the resource MAP message that MS sends all is described the problem of meeting increase overhead and proposes the present invention, for this reason, the present invention aims to provide data re-transmission processing method and the system of a kind of HARQ, to address the above problem.
According to an aspect of the present invention, provide a kind of data re-transmission processing method of mixing automatic repeat requests HARQ.
Data re-transmission processing method according to the automatic repeat requests HARQ of mixing of the present invention, the HARQ data re-transmission that is used for base station and terminal room under the resource constant-scheduling, comprise following operation: the base station provides the fixed allocation resource area for the constant-scheduling data, and notice terminal fixed allocation resource area information, so that terminal is preserved fixed allocation resource area information; The base station retransmits the zone for the HARQ data retransmission distributes; The base station sends to terminal and retransmits mapping message, and carry the re-transmission zone position information therein and retransmit the resource message bit pattern, wherein, retransmit zone position information and be used to indicate the original position that retransmits the zone, retransmit the resource message bit pattern and be used to indicate each packet whether to retransmit.
Preferably, the size that retransmits the zone is the big or small sum that needs the Resource Block of all terminals that HARQ retransmits in the fixed allocation resource area.
Preferably, before the base station retransmits the zone for the HARQ data retransmission distributes, said method also comprises: terminal preservation and real-time update are from the HARQ resource allocation information in the fixed allocation resource area information of base station, wherein, the HARQ resource allocation information is used for indicating the size and the order of the Resource Block that each HARQ of fixed allocation resource area enables.
Preferably, after terminal sent the re-transmission mapping message, said method also comprised in the base station: terminal receives the re-transmission mapping message from the base station, and therefrom obtains the re-transmission zone position information and retransmit the resource message bit pattern; Terminal is determined the resource block location that the HARQ of self retransmits according to the HARQ resource allocation information of the re-transmission zone position information that obtains and re-transmission resource message bit pattern and local storage.
Preferably, the HARQ resource allocation information comprises: the short connection identifier of fixed allocation Resource Block sequence number, each terminal and corresponding resource block size thereof wherein, comprise a plurality of fixed allocation Resource Block in the fixed allocation zone.
Preferably, the HARQ resource allocation information is arranged in the HARQ resource allocation table.
Preferably, use identical sortord that the Resource Block of each terminal in HARQ resource allocation table, re-transmission zone and the fixed allocation zone is sorted.
Preferably, each bit that retransmits in the resource bitmap is corresponding with a list item in the HARQ resource allocation table.
Preferably, in ascending resource distributed, retransmitting the resource bitmap was the HARQ feedback bitmap that terminal is issued in the base station.
Preferably, corresponding one of a fixed allocation resource area retransmits zone and a re-transmission resource bitmap.
Preferably, a plurality of re-transmissions zone of a plurality of fixed allocation resource area correspondences is by continuous dispensing and be combined as a re-transmission zone, and a plurality of re-transmission resource bitmap is combined as a re-transmission resource bitmap.
Preferably, retransmit the size information that also carries the re-transmission zone in the mapping message.
Preferably, the re-transmission Resource Block of a plurality of terminals in a frame in fixed allocation resource area is continuous dispensing in retransmitting the zone, and the packet that need not to retransmit is distributes resource blocks in retransmitting the zone not.
Preferably, in a frame retransmits the pairing number of retransmissions difference of a plurality of re-transmission Resource Block in the zone.
Preferably, dynamically determine to retransmit the distribution in zone.
Preferably, retransmitting regional distribution is arranged on predetermined instant and/or is arranged on the precalculated position.
According to another aspect of the present invention, provide a kind of data re-transmission treatment system of mixing automatic repeat requests HARQ.
Data re-transmission treatment system according to the automatic repeat requests HARQ of mixing of the present invention, comprise base station and a plurality of terminal, be used for the HARQ data re-transmission of base station and terminal room under the resource constant-scheduling, the base station comprises: module is provided, is used to the constant-scheduling data that the fixed allocation resource area is provided; Notification module, the fixed allocation resource area that is used for providing module to provide is notified to terminal, so that terminal is preserved fixed allocation resource area information; Distribution module is used to the HARQ data retransmission to distribute and retransmits the zone; Sending module, be used for sending the re-transmission mapping message, and carry the re-transmission zone position information therein and retransmit the resource message bit pattern, wherein to terminal, retransmit zone position information and be used to indicate the original position that retransmits the zone, retransmit the resource message bit pattern and be used to indicate each packet whether to retransmit.
Preferably, terminal comprises: preserve module, be used to preserve and real-time update from the HARQ resource allocation information of base station, wherein, the HARQ resource allocation information is used for indicating the size of the Resource Block that fixed allocation HARQ enables; Receiver module is used to receive the re-transmission mapping message from the base station; Acquisition module is used for obtaining the re-transmission zone position information and retransmitting the resource message bit pattern from the re-transmission mapping message that receiver module receives; Determination module is used for the re-transmission zone position information that obtains according to acquisition module and the HARQ resource allocation information that retransmits the resource message bit pattern and preserve module stores is determined the resource block location that self HARQ retransmits.
By the present invention, the method that fixed allocation retransmits regional location and fixed allocation re-transmission resource bitmap is carried in employing in resource mapping message, solved in the retransmission process process of relevant HARQ, BS is described the problem that can cause unnecessary spending to the resource allocation parameters information of each HARQ data retransmission bag in the resource MAP message that MS sends, and then has reduced the idle message expense that HARQ retransmits.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the data re-transmission processing method of the HARQ of the embodiment of the invention;
Fig. 2 is the schematic diagram that retransmits resource allocation according to HARQ under the PA distribution of the embodiment of the invention one;
Fig. 3 is the schematic diagram that distributes updated H ARQ re-transmission resource allocation according to the PA of the embodiment of the invention two;
Fig. 4 is the structured flowchart according to the data re-transmission treatment system of the HARQ of the embodiment of the invention;
Fig. 5 is the concrete structure block diagram according to the data re-transmission treatment system of the HARQ of the embodiment of the invention.
Embodiment
Functional overview
The embodiment of the invention provides data re-transmission processing method and the system of HARQ, and this method is used under the situation that PA distributes, and BS distributes corresponding resource and notifies MS for the HARQ data retransmission.That is to say, BS distributes the corresponding retransmission resource area for the HARQ data retransmission, and indication corresponding retransmission resource area (Retransmission Region, also can be called PA and retransmit the zone, this does not influence the essence of invention) position and re-transmission resource allocation bitmap (Retransmission Bitmap, can be called PA yet and retransmit the resource bitmap, this does not influence the essence of invention) to MS; MS preserves and real-time update HARQ resource allocation table, and then, the PA that MS sends according to BS retransmits the HARQ resource allocation table of regional location and PA re-transmission resource bitmap and preservation, determines the concrete resource that its HARQ retransmits.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Method embodiment
According to embodiments of the invention, the retransmission processing method of a kind of HARQ is provided, be used for the HARQ data re-transmission between BS and MS under the resource constant-scheduling.Fig. 1 is the flow chart according to the data re-transmission processing method of the HARQ of the embodiment of the invention, and as shown in Figure 1, this method comprises: step S102 is to step S106, and concrete operations are as follows:
Step S102, BS provides PA resource area (PA Region) for the constant-scheduling data, and with PA resource area information notice MS, so that MS preserves PA resource area information, wherein, PA Region comprises the Resource Block (sub-burst) of distributing to a plurality of MS;
Step S104, BS retransmit the zone for the HARQ data retransmission distributes;
Particularly, the distribution that retransmits the zone can be dynamically to determine, also can be arranged on predetermined instant and/or be arranged on the precalculated position, and wherein, HARQ retransmits when the resource area dynamic assignment has been meant the re-transmission demand and just distributes; The size that retransmits the zone is the big or small sum that needs the Resource Block of all MS that HARQ retransmits in the PA resource area; According to current scheduling of resource situation, the position that HARQ retransmits the zone can keep the position of distribution before, also can change into new position; Wherein, the corresponding relation that PA zone and HARQ retransmit the zone can be multiple mode, for example, can be that a corresponding HARQ in PA zone retransmits the zone, also can be that the corresponding HARQ in a plurality of PA zone retransmits the zone; The sequence consensus of corresponding M S in the order that HARQ retransmits each MS in the zone and the PA zone;
Step S106, BS sends the re-transmission mapping message of the assignment information that comprises the PA resource area to MS, and carries the re-transmission zone position information therein and retransmit the resource message bit pattern, can also carry the size information that PA retransmits the zone in the re-transmission mapping message here; Wherein, retransmit zone position information and be used to indicate the original position that retransmits the zone, retransmit the resource message bit pattern and be used to indicate each packet whether to retransmit.That is to say, the situation that BS transmits according to the HARQ data in the current PA zone, that is, and according to current HARQ feedback, determine that corresponding HARQ retransmits resource area position and size and corresponding retransmission resource allocation bitmap, and give MS the result notification of determining.
Need to prove that the re-transmission mapping message here can be to aim at the message that the carrier area positional information is provided with retransmitting the resource message bit pattern, can be related news of the prior art, this does not influence the essence of invention.In this step, a plurality of re-transmissions zone of a plurality of PA resource area correspondences can and be combined as one by continuous dispensing and retransmit the zone, and a plurality of re-transmission resource bitmap can be combined as a re-transmission resource bitmap.
For the MS side, before step S104, MS can preserve and real-time update is indicated the HARQ resource allocation information of the size and the order of the Resource Block that each HARQ of PA enables from being used in the PA resource area information of BS, the HARQ resource allocation information here can be arranged in the HARQ resource allocation table, and include but not limited to following information: fixed allocation area identification (PA Region sign at the HARQ resource allocation table, abbreviate PA Region ID as), PA Resource Block sequence number, short connection identifier (the ReducedConnect Identification of each MS, abbreviate RCID as) and corresponding resource block size, wherein, comprise a plurality of PA Resource Block in the PA zone.That is to say the HARQ resource allocation table that the assignment information of the sub-burst that HARQ enabled during MS can preserve and distribute according to PA is obtained.
Need to prove, use identical sortord that the Resource Block that HARQ resource allocation table, PA retransmit each MS in zone and the PA zone is sorted.That is the sequence consensus among the order of each MS and the PA Region in the HARQ resource allocation table; When PA distributed renewal, MS need correspondingly upgrade the HARQ resource allocation table of its preservation, the corresponding PA Region of HARQ resource allocation table.
It is corresponding with the HARQ resource allocation table that MS preserves that the HARQ here retransmits the resource allocation bitmap, and HARQ retransmits in the resource allocation bitmap each bit corresponding to a list item of HARQ resource allocation table, that is, and and MS that HARQ enables of a bit correspondence.Retransmit in the resource allocation bitmap at HARQ, bit is 1 to show that corresponding MS will retransmit, and bit is 0 to show that corresponding MS need not retransmit.
In addition, the corresponding PA of a PA resource area can be set retransmit zone and a re-transmission resource bitmap, the corresponding PA of a plurality of PA resource area also can be set retransmit zone and a re-transmission resource bitmap, promptly, the PA re-transmission zone of each PA resource area correspondence is superposeed in a certain order, form a PA and retransmit the zone, and a corresponding re-transmission resource bitmap is set.
In a frame, the data retransmission bag of each data sub-packets of same PA resource area all retransmits Resources allocation and transmission in the zone at same PA, and adopting same PA to retransmit the resource bitmap indicates PA to retransmit resource to MS, wherein, same PA retransmits the data retransmission bag that the sub-bag of data retransmission in the zone can comprise the different number of retransmissions of each different resource piece.In addition, in a frame, the re-transmission Resource Block of a plurality of MS in PA resource area is continuous dispensing in retransmitting the zone, and the packet that need not to retransmit is distributes resource blocks in retransmitting the zone not; A pairing number of retransmissions of a plurality of re-transmission Resource Block that retransmits in the zone in a frame is identical or different.
After step S106, MS receives the re-transmission mapping message from BS, and therefrom obtains the re-transmission zone position information and retransmit the resource message bit pattern; MS is according to the re-transmission zone position information that obtains and retransmit the resource message bit pattern and the HARQ resource allocation information of local storage is determined the position that self HARQ retransmits, that is to say, the HARQ that MS sends according to BS retransmits the resource area position and retransmits the resource allocation bitmap, in conjunction with the HARQ resource allocation table that MS preserves, determine that its HARQ retransmits the particular location of Resource Block (retransmitting sub-burst).
Particularly, each bit in the bitmap is corresponding to each MS in the HARQ resource allocation table; Bit is 0, and the sub-burst of its corresponding MS can not retransmit in the resource area at HARQ and distribute, and does not promptly account for the re-transmission resource; Bit is 1, and the sub-burst of its corresponding MS need retransmit Resources allocation in the resource area at HARQ, takies corresponding duration.Like this, MS can determine that HARQ retransmits order and the size of each sub-burst in the zone, also just can determine the position of re-transmission resource sub-burst in retransmitting the zone of oneself.Further, MS can use the sub-burst of this re-transmission resource allocation to carry out the transmitting-receiving of data retransmission.
Need to prove that this method is not limited to the ascending resource distribution or downlink resource distributes, distribute that it is identical that PA re-transmission resource bitmap can feed back bitmap with (that is, BS issues MS's) HARQ of BS feedback, also can be different for ascending resource.
By this embodiment, can simplify the resource allocation that HARQ retransmits, and can reduce the empty overhead that HARQ retransmits resource notification.
Below in conjunction with example the embodiment of the invention is described in detail.
Embodiment one
Fig. 2 is the schematic diagram that retransmits resource allocation according to HARQ under the PA distribution of the embodiment of the invention one, as shown in Figure 2, BS sends the PA assignment information to MS in time T 1, comprises the sub-burst of 9 MS among this PA Region, wherein, sub-burst2,5,6,8 right and wrong HARQ modes.The MS that HARQ enables (1,3,4,7,9) receives after the PA assignment information, preserves corresponding HARQ resource allocation table (as shown in table 1).In time T 1, BS and MS utilize this PA to distribute to come transmit traffic data.Need to prove that filling part is lexical or textual analysis in the table 1, rather than refer to preserve parameter.
Table 1HARQ resource allocation table
BS obtains the HARQ feedback information in time T 2, and this is at the feedback information after the T1 time utilization PA distribution transmission HARQ data.In Fig. 2, sub-burst1,3,9 is negative feedback, shows that the data transmission makes mistakes, and need retransmit; And sub-burst4,7 is positive feedback to need not data retransmission.So BS distributes HARQ to retransmit resource area (that is, above-mentioned steps S102), this area size is the duration sum of sub-burst1,3,9 these three sub-burst, determines to retransmit the original position in zone simultaneously according to the scheduling of resource situation.Corresponding to HARQ resource allocation table (as shown in table 1), BS determines that it is 11001 that HARQ retransmits the resource allocation bitmap.
As described in step S104, HARQ is retransmitted the resource area original position to BS and HARQ re-transmission resource allocation bitmap sends to MS; Each MS (1,3,9) determines the particular location of the re-transmission resource sub-burst of its use according to original position that retransmits the zone and re-transmission bitmap, and utilizes this re-transmission Resource Block transmitting-receiving data retransmission.In the present embodiment, be O1 if retransmit regional starting point, the re-transmission sub-burst position of MS1 is at O1, and the re-transmission sub-burst position of MS3 is at O1+A, and the re-transmission sub-burst position of MS9 is at O1+A+B.
In this embodiment, the HARQ re-transmission resource allocation information (that is, above-mentioned HARQ retransmits mapping message) that BS sends to MS comprises that HARQ retransmits the resource area position and HARQ retransmits the resource allocation bitmap, and it is as shown in table 2 below that this retransmits resource allocation information.
HARQ during table 2PA distributes retransmits mapping message
HARQ?Retransmission?MAP?IE?for?Persistent?Allocation
| Grammer (Syntax) | Size | Describe |
| ?HARQ?Retransmission?MAP?IE?for?Persistent?Allocation()?{ | ||
| ?PA?Region?ID | Retransmit corresponding PA zone, zone | |
| ?Retransmission?Region?change?indicator | ??1bit | Whether retransmit regional location changes |
| ?If(Retransmission?Region?change?indicator＝＝1)?{ | ||
| ?Region?ID?used | ??1bit | Retransmit the regional Region ID that whether uses among the DCD |
| ?If(Region?ID?used＝＝1)?{ | Use semi-static zone | |
| ?Region?ID?} | ??xbit | Zone among the DCD |
| ?If(Region?ID?used＝＝0)?{ | Do not use semi-static zone | |
| ?Symbol?offset/Subframes | ??xbit | Symbol biasing/the sub-frame offset in zone |
| ?Sub-channel?offset | ??xbit |
| Grammer (Syntax) | Size | Describe |
| ?Number?of?Symbol/Number?of?subframes | ??xxbi??t | Symbol/sub-frame number |
| ?Number?of?Sub-channels | ??xxbi??t | Number of sub-channels |
| ??} | ||
| ??} | ||
| ??Retransmission?bitmap | ??xbit | |
| ??} | ||
| ??} |
By this embodiment, provide the HARQ retransmission processing method under the re-transmission situation first.
Embodiment two
Fig. 3 is the schematic diagram that distributes updated H ARQ re-transmission resource allocation according to the PA of the embodiment of the invention two, as shown in Figure 3, BS sends new PA assignment information to MS in time T 3, with respect to the T1 time among Fig. 2, the sub-burst4 resource is released among the PA Region, the newly-increased simultaneously Resource Block that has distributed sub-burst10.So upgrading the HARQ resource allocation table, MS is table 3, as shown in table 3, comprise sub-burst1,3,7,9,10.In time T 3, BS and MS utilize the PA after upgrading to distribute to come transmit traffic data.Need to prove that filling part is lexical or textual analysis in the table 3, rather than refer to preserve parameter.
Table 3HARQ resource allocation table
BS obtains the HARQ feedback information in time T 4, and this is at the feedback information after the PA distribution transmission HARQ data after the renewal of T3 time utilization.Among Fig. 3, sub-burst1,7,10 is negative feedback, shows that the data transmission makes mistakes, and need retransmit; And sub-burst3,9 is positive feedback to need not data retransmission.So, BS distributes HARQ to retransmit resource area (promptly, above-mentioned steps S102), this area size is the duration sum of sub-burst1,7,10 these three sub-burst, determine to retransmit the original position in zone simultaneously according to the scheduling of resource situation, the re-transmission zone original position of using before can continuing also can be changed into new original position.Corresponding to updated H ARQ resource allocation table (see figure 4), BS determines that it is 10101 that HARQ retransmits the resource allocation bitmap.
As described in step S104, HARQ is retransmitted the resource area original position to BS and HARQ re-transmission resource allocation bitmap is issued MS.Each MS (1,7,10) determines the particular location of the re-transmission resource sub-burst of its use according to original position that retransmits the zone and re-transmission bitmap, and utilizes this re-transmission Resource Block transmitting-receiving data retransmission.In the present embodiment, be O2 if retransmit regional starting point, the re-transmission sub-burst position of MS1 is at O2, and the re-transmission sub-burst position of MS7 is at O2+A, and the re-transmission sub-burst position of MS10 is at O+A+D.
Retransmit in the zone at the PA of this embodiment, the sub-burst1 of MS1 retransmits for the second time, and the sub-burst10 of the sub-burst7 of MS7 and MS10 retransmits for the first time.
By this embodiment, provide the HARQ that comprises the situation that retransmits once more retransmission processing method.
Embodiment three
In this embodiment, basic identical for the implementation procedure of process among step S102 and the step S104 and above embodiment, therefore identical implementation procedure is not described in detail, only to setting forth with the difference of the foregoing description.Particularly, distribute for ascending resource, after MS sent upstream data, BS may send corresponding HARQ feedback, and indicated with corresponding bitmap HARQ ACK BITMAP.In this case, the PA of the embodiment of the invention retransmits the resource bitmap can use HARQ feedback bitmap (HARQ ACKBITMAP), therefore, can not indicate PA to retransmit the resource bitmap in the message of the re-transmission resource allocation information that sends to MS.In this embodiment, the HARQ that BS sends to MS retransmits resource allocation information (promptly, above-mentioned HARQ retransmits mapping message) comprise that HARQ retransmits the resource area position and HARQ retransmits resource allocation bitmap (that is, HARQ feeds back bitmap), it is as shown in table 4 below that this retransmits resource allocation information.
HARQ during table 4PA distributes retransmits mapping message
Table 4HARQ Retransmission MAP IE for Persistent Allocation
| Grammer (Syntax) | Size | Describe |
| ?HARQ?Retransmission?MAP?IE?for?Persistent?Allocation()?{ | ||
| ?PA?Region?ID | Retransmit corresponding PA zone, zone | |
| ?Retransmission?Region?change?indicator | ??1bit | Whether retransmit regional location changes |
| Grammer (Syntax) | Size | Describe |
| ?If(Retransmission?Region?change?indicator＝＝1)?{ | ||
| ?Region?ID?used | ??1bit | Retransmit the regional Region ID that whether uses among the DCD |
| ?If(Region?ID?used＝＝1)?{ | Use semi-static zone | |
| ?Region?ID?} | ??xbit | Zone among the DCD |
| ?If(Region?ID?used＝＝0)?{ | Do not use semi-static zone | |
| ?Symbol?offset/Subframes | ??xbit | Symbol biasing/the sub-frame offset in zone |
| ?Sub-channel?offset | ??xbit | |
| ?Number?of?Symbol/Number?of?subframes | ??xxbi??t | Symbol/sub-frame number |
| ?Number?of?Sub-channels | ??xxbi??t | Number of sub-channels |
| ?} | ||
| ?} | ||
| ?Retransmission?bitmap?indicator | ??1bit | Whether send PA and retransmit the resource bitmap |
| ?If(Retransmission?bitmap?indicator＝＝1)?{ |
| Grammer (Syntax) | Size | Describe |
| ?Retransmission?bitmap?} | ??xbit | |
| ?} | ||
| ?} |
By this embodiment, realized using HARQ feedback bitmap retransmits the HARQ re-transmission of resource bitmap as PA processing method.
System embodiment
According to embodiments of the invention, a kind of data re-transmission treatment system of mixing automatic repeat requests HARQ is provided, comprise BS 4 and a plurality of MS 5, be used for the HARQ data re-transmission between BS and MS under the resource constant-scheduling.Fig. 4 is the structured flowchart according to the retransmission process system of the HARQ of the embodiment of the invention, and as shown in Figure 4, BS 4 comprises: distribution module 42, sending module 44, provide module 46, notification module 48, below said structure is described.
Module 46 is provided, is used to the constant-scheduling data that PA is provided resource area; Notification module 48, being connected to provides module 46, and the PA resource area that is used for providing module 46 to provide is notified to MS, so that MS preserves PA resource area information; Distribution module 42 is used to the HARQ data retransmission to distribute and retransmits the zone; Sending module 44, be connected to distribution module 42, the re-transmission zone that is used for distributing according to distribution module 42 sends to MS and retransmits mapping message, and carry the re-transmission zone position information therein and retransmit the resource message bit pattern, wherein, retransmit zone position information and be used to indicate the original position that retransmits the zone, retransmit the resource message bit pattern and be used to indicate each HARQ resource whether to retransmit.
Fig. 5 is the concrete structure block diagram according to the retransmission process system of the HARQ of the embodiment of the invention, and as shown in Figure 5, MS 5 is connected to BS 4, comprising: preserve module 52, receiver module 54, acquisition module 56, determination module 58, below said structure is described.
Preserve module 52, be used to preserve and real-time update from the HARQ resource allocation information of BS, wherein, the HARQ resource allocation information is used for indicating the size of the Resource Block that PA HARQ enables; Receiver module 54 is used to receive the re-transmission mapping message from BS; Acquisition module 56 is used for obtaining the re-transmission zone position information and retransmitting the resource message bit pattern from the re-transmission mapping message that receiver module 54 receives; Determination module 58, be connected to and preserve module 52 and acquisition module 56, be used for the re-transmission zone position information that obtains according to acquisition module 56 and the HARQ resource allocation information that retransmits the resource message bit pattern and preserve module 52 storages is determined the position that self HARQ retransmits.
Pass through the above embodiment of the present invention, the method that PA retransmits regional location and PA re-transmission resource bitmap is carried in employing in resource mapping message, solved in the retransmission process process of relevant HARQ, BS is described the problem that can cause unnecessary spending to the resource allocation parameters information of each HARQ data retransmission bag in the resource MAP message that MS sends, and then has reduced the idle message expense that HARQ retransmits.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
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 being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. data re-transmission processing method of mixing automatic repeat requests HARQ is used for the HARQ data re-transmission of base station and terminal room under the resource constant-scheduling, it is characterized in that described method comprises:
Described base station provides the fixed allocation resource area for the constant-scheduling data, and notifies described terminal fixed allocation resource area information, so that described terminal is preserved described fixed allocation resource area information;
Described base station retransmits the zone for the HARQ data retransmission distributes;
Described base station sends to described terminal and retransmits mapping message, and carry described re-transmission zone position information therein and retransmit the resource message bit pattern, wherein, described re-transmission zone position information is used to indicate the described original position that retransmits the zone, and whether described re-transmission resource message bit pattern is used to indicate each packet to retransmit.
2. method according to claim 1 is characterized in that, the described size that retransmits the zone is the big or small sum that needs the Resource Block of all terminals that HARQ retransmits in the described fixed allocation resource area.
3. method according to claim 1 is characterized in that, before described base station retransmitted the zone for the HARQ data retransmission distributes, described method also comprised:
Described terminal preservation and real-time update are from the HARQ resource allocation information in the described fixed allocation resource area information of described base station, wherein, described HARQ resource allocation information is used for indicating the size and the order of the Resource Block that described each HARQ of fixed allocation resource area enables.
4. method according to claim 3 is characterized in that, after terminal sent the re-transmission mapping message, described method also comprised in described base station:
Described terminal receives the described re-transmission mapping message from described base station, and therefrom obtains described re-transmission zone position information and described re-transmission resource message bit pattern;
Described terminal is determined the resource block location that the HARQ of self retransmits according to the described HARQ resource allocation information of the described re-transmission zone position information that obtains and described re-transmission resource message bit pattern and local storage.
5. according to claim 3 or 4 described methods, it is characterized in that described HARQ resource allocation information comprises:
The short connection identifier of fixed allocation area identification, fixed allocation Resource Block sequence number, each terminal and corresponding resource block size thereof wherein, comprise a plurality of fixed allocation Resource Block in the described fixed allocation zone.
6. according to claim 3 or 4 described methods, it is characterized in that described HARQ resource allocation information is arranged in the HARQ resource allocation table.
7. method according to claim 6 is characterized in that, uses identical sortord that the Resource Block of each terminal in described HARQ resource allocation table, described re-transmission zone and the described fixed allocation zone is sorted.
8. method according to claim 6 is characterized in that, each bit in the described re-transmission resource bitmap is corresponding with a list item in the described HARQ resource allocation table.
9. according to each described method in the claim 1 to 4, it is characterized in that in ascending resource distributed, described re-transmission resource bitmap was the HARQ feedback bitmap that described terminal is issued in described base station.
10. according to each described method in the claim 1 to 4, it is characterized in that corresponding one of a fixed allocation resource area retransmits zone and a re-transmission resource bitmap.
11. method according to claim 10 is characterized in that, a plurality of re-transmissions zone of a plurality of fixed allocation resource area correspondences is by continuous dispensing and be combined as a re-transmission zone, and a plurality of re-transmission resource bitmap is combined as a re-transmission resource bitmap.
12. according to each described method in the claim 1 to 4, it is characterized in that, also carry the described size information that retransmits the zone in the described re-transmission mapping message.
13. according to each described method in the claim 1 to 4, it is characterized in that, the re-transmission Resource Block of a plurality of terminals in a frame in fixed allocation resource area is continuous dispensing in retransmitting the zone, and the packet that need not to retransmit is distributes resource blocks in retransmitting the zone not.
14., it is characterized in that a pairing number of retransmissions of a plurality of re-transmission Resource Block that retransmits in the zone in a frame is identical or different according to each described method in the claim 1 to 4.
15. according to each described method in the claim 1 to 4, it is characterized in that, dynamically determine to retransmit the distribution in zone.
16., it is characterized in that the distribution that retransmits the zone is arranged on predetermined instant and/or is arranged on the precalculated position according to each described method in the claim 1 to 4.
17. a data re-transmission treatment system of mixing automatic repeat requests HARQ comprises base station and a plurality of terminal, is used for the HARQ data re-transmission of base station and terminal room under the resource constant-scheduling, it is characterized in that described base station comprises:
Module is provided, is used to the constant-scheduling data that the fixed allocation resource area is provided;
Notification module is used for the described described fixed allocation resource area that provides module to provide is notified to described terminal, so that described terminal is preserved described fixed allocation resource area information;
Distribution module is used to the HARQ data retransmission to distribute and retransmits the zone;
Sending module, be used for sending the re-transmission mapping message to terminal, and carry the re-transmission zone position information therein and retransmit the resource message bit pattern, wherein, described re-transmission zone position information is used to indicate the described original position that retransmits the zone, and whether described re-transmission resource message bit pattern is used to indicate each packet to retransmit.
18. system according to claim 17 is characterized in that, described terminal comprises:
Preserve module, be used to preserve and real-time update from the HARQ resource allocation information of described base station, wherein, described HARQ resource allocation information is used for indicating the size of the Resource Block that fixed allocation HARQ enables;
Receiver module is used to receive the described re-transmission mapping message from described base station;
Acquisition module is used for obtaining described re-transmission zone position information and described re-transmission resource message bit pattern from the described re-transmission mapping message that described receiver module receives;
Determination module, the described HARQ resource allocation information that is used for the described re-transmission zone position information that obtains according to described acquisition module and described re-transmission resource message bit pattern and preserves module stores are determined the resource block location that self HARQ retransmits.
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| CN2008101755889A CN101741525B (en) | 2008-11-07 | 2008-11-07 | Method and system for processing data retransmission of hybrid automatic retransmission request |
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| CN2008101755889A CN101741525B (en) | 2008-11-07 | 2008-11-07 | Method and system for processing data retransmission of hybrid automatic retransmission request |
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| CN102299784A (en) * | 2011-09-13 | 2011-12-28 | 华为技术有限公司 | Data transmission method and equipment |
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| CN111835469A (en) * | 2019-08-12 | 2020-10-27 | 维沃移动通信有限公司 | Information sending and receiving method, terminal and control node |
| CN111835469B (en) * | 2019-08-12 | 2022-01-11 | 维沃移动通信有限公司 | Information sending and receiving method, terminal and control node |
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