CN107231617A - Method for transmission processing and device - Google Patents
Method for transmission processing and device Download PDFInfo
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- CN107231617A CN107231617A CN201610178385.XA CN201610178385A CN107231617A CN 107231617 A CN107231617 A CN 107231617A CN 201610178385 A CN201610178385 A CN 201610178385A CN 107231617 A CN107231617 A CN 107231617A
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- harq
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- 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
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
-
- 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
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1858—Transmission or retransmission of more than one copy of acknowledgement message
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses method for transmission processing and device, this method includes：Sending node carries out identical data transfer simultaneously to multiple receiving nodes, wherein, each packet is assigned with a feedback resources；For each receiving node, in the case where needing to be fed back, the data from sending node received are fed back on the corresponding feedback resources of the packet.The problem of being solved in the prior art without caused by retransmission mechanism by the present invention, improves the reliability of point-to-multipoint transmission.
Description
Technical field
The present invention relates to communication field, in particular to method for transmission processing and device.
Background technology
Mobile service is divided into point to point service, PTP (such as unicast service) and point-to-multipoint service (such as broadcast group
Broadcast business, group-calling service).
3GPP has 3 kinds of transmission mechanisms to solve point-to-multipoint service, and respectively eMBMS is (enhanced more
Media broadcast multicast service, enhanced Multimedia Broadcast Multicast Service),
SC-PTM (Single Cell Point to Multipoint, single cell point to multiple spot) and Unicast (unicast).
Wherein, for eMBMS and SC-PTM, there is presently no the retransmission mechanism of physical layer (for example, HARQ
Retransmission mechanism), therefore, for the data service of error sensitive, the efficiency of transmission of system can be very low.
The content of the invention
The invention provides method for transmission processing and device, led with solving no retransmission mechanism in the prior art
The problem of cause.
According to an aspect of the invention, there is provided a kind of method for transmission processing, including：Sending node is to more
Individual receiving node carries out identical data transfer simultaneously, wherein, each packet is assigned with a feedback money
Source；For each receiving node, in the case where needing to be fed back, in the corresponding feedback money of the packet
The data from the sending node received are fed back on source.
Further, the sending node carries out identical data transfer bag simultaneously to the multiple receiving node
Include：The sending node carries out identical HARQ data transmission simultaneously to the multiple receiving node；It is right
The data from the sending node received, which carry out feedback, to be included：To receiving section is sent from described
The data of point carry out HARQ feedback.
Further, HARQ feedback is carried out on the corresponding feedback resources of the packet includes：In the number
Synchronized or asynchronous HARQ feedback on corresponding feedback resources according to wrapping, wherein, the synchronous HARQ
The feedback representation HARQ feedback time is fixed with the corresponding HARQ transmission time；The asynchronous HARQ
Represent that HARQ feedback time and corresponding HARQ transmission time are unfixed, taken during HARQ feedback
Identification information with packet.
Further, each packet also carries at least one of：New data is indicated, re-transmission refers to
Show, HARQ feedback resource is indicated.
Further, the nack message of HARQ feedback is characterized by signal.
Further, the signal includes at least one of：Pulse, modulation symbol.
Further, the sending node carries out identical data transfer bag simultaneously to the multiple receiving node
Include：The sending node carries out identical data transfer on the same resource to the multiple receiving node.
Further, the resource includes at least one of：Time-domain resource, frequency domain resource, code domain resource,
Spatial domain resource.
Further, the link of the sending node to the receiving node is in synchronous regime；It is described to receive
The link of node to the sending node is in synchronous regime, asynchronous state or desynchronizing state.
Further, in addition to：The sending node to the receiving node carry out HARQ re-transmissions when,
Carry out soft merging or incremental redundancy is retransmitted.
Further, each receiving node, if correctly solving packet, is not saved to described send
Point carries out HARQ feedback；It is corresponding described anti-in the packet if not solving packet correctly
Nack message is fed back in feedback resource；The sending node, is detected, such as on the feedback resources
Fruit detects nack message, then retransmission process is carried out to corresponding packet, if do not detected
Nack message, then it is assumed that corresponding packet is properly received by all receiving nodes, and carry out new number
According to transmission process.
Further, the sending node is sentenced after the nack message of receiving node transmission is received
Whether the number of retransmissions of disconnected corresponding packet reaches defined thresholding, if it is, the packet is abandoned,
And carry out new data transmission and processing；If it is not, then being retransmitted to the packet.
According to another aspect of the present invention, a kind of transmission processing device is additionally provided, including：Sending module,
In sending node, for carrying out identical data transfer simultaneously to multiple receiving nodes, wherein, each
Packet is assigned with a feedback resources；Feedback module, in receiving node, for needing to carry out
In the case of feedback, to receiving from the sending node on the corresponding feedback resources of the packet
Data are fed back.
Further, the sending module, for carrying out identical simultaneously to the multiple receiving node
HARQ data is transmitted；The feedback module, for entering to the data from the sending node received
Row HARQ feedback.
Further, the feedback module be used for synchronized on the corresponding feedback resources of the packet or
Asynchronous HARQ feedback, wherein, the synchronous HARQ feedback representation HARQ feedback time with it is corresponding
The HARQ transmission time is fixed；The asynchronous HARQ represent the HARQ feedback time with it is corresponding
The HARQ transmission time is unfixed, and the identification information of packet is carried during HARQ feedback.
Further, each packet also carries at least one of：New data is indicated, re-transmission refers to
Show, HARQ feedback resource is indicated.
Further, the nack message of HARQ feedback is characterized by signal.
Further, the signal includes at least one of：Pulse, modulation symbol.
Further, the sending module is used to carry out phase on the same resource to the multiple receiving node
Same data transfer.
Further, the resource includes at least one of：Time-domain resource, frequency domain resource, code domain resource,
Spatial domain resource.
Further, the link of the sending node to the receiving node is in synchronous regime；It is described to receive
The link of node to the sending node is in synchronous regime, asynchronous state or desynchronizing state.
Further, the sending module, during for carrying out HARQ re-transmissions to the receiving node, enters
Row soft merging or incremental redundancy are retransmitted.
Further, the feedback module, in the case where packet correctly can be solved, not to institute
State sending node and carry out HARQ feedback；In the case where correctly not solving packet, in the packet
Nack message is fed back on the corresponding feedback resources；The sending node also includes detection module, institute
Stating detection module is used to be detected on the feedback resources, right if detecting nack message
Corresponding packet carries out retransmission process, if not detecting nack message, then it is assumed that corresponding number
It is properly received according to the receiving node for being coated with all, and carries out new data transmission and processing.
Further, the sending module, for receive receiving node transmission nack message it
Afterwards, judge whether the number of retransmissions of corresponding packet reaches defined thresholding, if it is, abandoning the number
According to bag, and carry out new data transmission and processing；If it is not, then being retransmitted to the packet.
By the present invention, identical data transfer is carried out using sending node simultaneously to multiple receiving nodes, its
In, each packet is assigned with a feedback resources；For each receiving node, needing to be fed back
In the case of, the data from sending node received are carried out on the corresponding feedback resources of the packet
Feedback.The problem of being solved in the prior art without caused by retransmission mechanism by the present invention, improves and a little arrives
The reliability of multicast communication.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application,
The schematic description and description of the present invention is used to explain the present invention, does not constitute the improper limit to the present invention
It is fixed.In the accompanying drawings：
Fig. 1 is the flow chart of method for transmission processing according to embodiments of the present invention；
Fig. 2 is the structured flowchart of transmission processing device according to embodiments of the present invention；
Fig. 3 is base station according to embodiments of the present invention while entering to UE11, UE12 and UE13 in cell
The schematic diagram of the point-to-multipoint transmission of row；
Fig. 4 is terminal UE 21 according to embodiments of the present invention while being carried out to UE22, UE23 and UE24
Point-to-multipoint transmission schematic diagram；
Fig. 5 is the schematic diagram of HARQ new biographies according to embodiments of the present invention；
Fig. 6 is the schematic diagram that HARQ according to embodiments of the present invention is retransmitted；
Fig. 7 is the schematic diagram of HARQ bag discard processings according to embodiments of the present invention.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application
It can be mutually combined.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of method for transmission processing is provided in the present embodiment, and Fig. 1 is transmission according to embodiments of the present invention
The flow chart of processing method, as shown in figure 1, this method comprises the following steps：
Step S102, sending node carries out identical data transfer simultaneously to multiple receiving nodes, wherein,
Each packet is assigned with a feedback resources；
Step S104, for each receiving node, in the case where needing to be fed back, in the packet
The data from the sending node received are fed back on corresponding feedback resources.
The problem of being solved in the prior art without caused by retransmission mechanism by above-mentioned steps, is improved a little to many
The reliability of point transmission.
The mode fed back has many kinds, and a kind of the more commonly used feedback system is HARQ modes, i.e.,
Data to reception carry out HARQ feedback.Also data are carried out when now sending data using HARQ
Transmission.For example, each receiving node, if correctly solving packet, does not carry out HARQ to sending node
Feedback；If not solving packet correctly, NACK is fed back on the corresponding feedback resources of the packet
Information；Sending node, is detected on feedback resources, if detecting nack message, to right
The packet answered carries out retransmission process, if not detecting nack message, then it is assumed that corresponding data
All receiving nodes of coating are properly received, and carry out new data transmission and processing.
In an optional embodiment, can be synchronized on the corresponding feedback resources of the packet or
The asynchronous HARQ feedback of person, wherein, the synchronous HARQ feedback representation HARQ feedback time with it is corresponding
The HARQ transmission time is fixed；Asynchronous HARQ represents HARQ feedback time and corresponding HARQ
Transmission time is unfixed, and the identification information of packet is carried during HARQ feedback.
In an optional embodiment, each packet can also carry at least one of：New number
Indicated according to instruction, retransmit, HARQ feedback resource.
The nack message of HARQ feedback can have many middle characteristic manners, for example, HARQ feedback
Nack message is characterized by a signal (for example, pulse and/or modulation symbol).
As an optional embodiment, sending node is carried out on the same resource to multiple receiving nodes
Identical data transfer.For example, the resource can include at least one of：Time-domain resource, frequency domain resource,
Code domain resource, spatial domain resource.
As an optional embodiment, the link of sending node to receiving node may be at synchronous regime；
The link of receiving node to sending node may be at synchronous regime, asynchronous state or desynchronizing state.
As another optional embodiment, sending node to receiving node carry out HARQ re-transmissions when,
Soft merging can be carried out or incremental redundancy is retransmitted.
As an optional embodiment, each receiving node, if correctly solving packet, not to
Sending node carries out HARQ feedback；It is corresponding in the packet if not solving packet correctly
Nack message is fed back on feedback resources；Sending node, is detected on feedback resources, if detection
To nack message, then retransmission process is carried out to corresponding packet, if not detecting NACK letters
Breath, then it is assumed that corresponding packet is properly received by all receiving nodes, and is carried out at new data transfer
Reason.
As another optional embodiment, sending node is receiving the NACK of receiving node transmission
After information, judge whether the number of retransmissions of corresponding packet reaches defined thresholding, if it is, losing
The packet is abandoned, and carries out new data transmission and processing；If it is not, then being retransmitted to the packet.
A kind of transmission processing device is additionally provided in the present embodiment, and Fig. 2 is biography according to embodiments of the present invention
The structured flowchart of transportation processing equipment, as shown in Fig. 2 the device includes：
Sending module 22, in sending node, for carrying out identical data simultaneously to multiple receiving nodes
Transmission, wherein, each packet is assigned with a feedback resources；
Feedback module 24, in receiving node, in the case where needing to be fed back, in the data
Wrap and the data from sending node that receive are fed back on corresponding feedback resources.
Alternatively, sending module 22, for carrying out identical HARQ data simultaneously to multiple receiving nodes
Transmission；Feedback module 24, for carrying out HARQ feedback to the data from sending node received.
Alternatively, feedback module 24 is used to synchronize or different on the corresponding feedback resources of the packet
HARQ feedback is walked, wherein, synchronous HARQ feedback representation HARQ feedback time and corresponding HARQ
Transmission time is fixed；When asynchronous HARQ represents that the HARQ feedback time is with corresponding HARQ transmission
Between be unfixed, the identification information of packet is carried during HARQ feedback.
Alternatively, each packet also carries at least one of：New data instruction, retransmit,
HARQ feedback resource is indicated.
Alternatively, the nack message of HARQ feedback is characterized by signal.
Alternatively, signal includes at least one of：Pulse, modulation symbol.
Alternatively, sending module 22 is used to carry out identical number on the same resource to multiple receiving nodes
According to transmission.
Alternatively, resource includes at least one of：Time-domain resource, frequency domain resource, code domain resource, spatial domain
Resource.
Alternatively, the link of sending node to receiving node is in synchronous regime；Receiving node is to sending node
Link be in synchronous regime, asynchronous state or desynchronizing state.
Alternatively, sending module 22, during for carrying out HARQ re-transmissions to receiving node, carry out soft merging
Or incremental redundancy is retransmitted.
Alternatively, feedback module 24, in the case where packet correctly can be solved, not saved to transmission
Point carries out HARQ feedback；It is corresponding anti-in the packet in the case where correctly not solving packet
Nack message is fed back in feedback resource；Sending node can also include detection module, and detection module is used for
Detected, if detecting nack message, corresponding packet is retransmitted on feedback resources
Processing, if not detecting nack message, then it is assumed that corresponding packet is by all receiving nodes
It is properly received, and carries out new data transmission and processing.
Alternatively, sending module 22, for receive receiving node transmission nack message after,
Judge whether the number of retransmissions of corresponding packet reaches defined thresholding, if it is, the packet is abandoned,
And carry out new data transmission and processing；If it is not, then being retransmitted to the packet.
Illustrated with reference to an alternative embodiment.
In the present embodiment, a sending node carries out identical data simultaneously to two and above receiving node
Transmission；To each one feedback resources of allocation of packets；For each receiving node, if correctly solving number
According to bag, then HARQ feedback is not carried out to sending node；If not solving packet correctly, at this
Nack message is fed back on the corresponding feedback resources of packet；It is enterprising in feedback resources for sending node
Row detection, if detecting nack message, carries out retransmission process, if do not had to corresponding packet
Detect nack message, then it is assumed that corresponding packet is properly received by all receiving nodes, and
Carry out new data transmission and processing.
Each packet carries an ID, makes as HARQ Process ID；
The HARQ feedback of receiving node can include：If correctly solving packet, do not saved to transmission
Point carries out HARQ feedback；If not solving packet correctly, in the corresponding feedback money of the packet
Nack message is fed back on source；
HARQ feedback can be synchronous feedback or asynchronous feedback；
Synchronous feedback represents that the HARQ feedback time is fixed, HARQ with the corresponding HARQ transmission time
HARQ Process ID need not be carried during feedback；Asynchronous feedback represent the HARQ feedback time with it is corresponding
The HARQ transmission time is unfixed, and HARQ Process ID need to be carried during HARQ feedback；Per number
New biography and retransmit are also carried according to bag, made as NDI (New Data Indication, new data is indicated)；Often
Individual packet can also carry corresponding HARQ feedback resource and indicate.
The nack message of HARQ feedback can be characterized by a signal, such as pulse.
One sending node carries out identical data transfer simultaneously to two and above receiving node, is specially：
One sending node carries out identical data biography simultaneously on the same resource to two and above receiving node
It is defeated, for example, a base station is to enterprising in identical running time-frequency resource to multiple terminals under the MPS process of the base station
Row data transfer.Identical resource can refer to identical time domain, frequency domain, code domain, spatial domain resource, certainly
Not limited to this.
Sending node can be base station or terminal；Receiving node is terminal.
Downlink represents sending node to the link of receiving node；Up-link represents receiving node to transmission
The link of node.
Downlink is in synchronous regime；Up-link can be in synchronous regime or in not
Synchronization or desynchronizing state.
By taking LTE system as an example, it is sending node to make base station, and terminal is receiving node, and terminal is in
RRC_Connected states and uplink loss, or during in RRC_Idle states, belong to receiving node
In up asynchronous or desynchronizing state；Terminal is in RRC_Connected states and uplink synchronous,
Belong to receiving node and be in uplink sync status.
Point-to-multipoint HARQ is retransmitted：CC (Chase Combine, soft merging) re-transmissions can be carried out,
IR (Incremental Redundancy, incremental redundancy) re-transmissions can also be carried out.
Illustrated with reference to several scenes.
Point-to-multipoint transmitting scene
Scene one：Base station (eNB) to UE11, UE12 and UE13 in cell while carry out point-to-multipoint
Transmission.As shown in Figure 3.
Scene two：Terminal UE 21 carries out point-to-multipoint transmission to UE22, UE23 and UE24 simultaneously.
As shown in Figure 4.
Embodiment one：HARQ new biographies
Sending node A1 carries out point-to-multipoint HARQ to receiving node B11 and receiving node B12 and passed
It is defeated；It is CC modes to make HARQ retransmission schemes；HARQ maximum retransmissions are 3.Fig. 5 is according to this
The schematic diagram of the HARQ new biographies of inventive embodiments, as shown in figure 5, may include steps of：
Step 1：Sometime, sending node A1 carries out new data transmission by HARQ Process0,
And new biography is designated as, while caching the data；
Step 2：
Step 2.1：Receiving node B11 judges HARQ Process0 for new biography, and is correctly decoded HARQ
Data in Process0, therefore, not to sending node on the corresponding feedback resources of HARQ Process0
HARQ feedback is carried out, while delivering the decoded data to high level；
Step 2.2：Receiving node B12 judges HARQ Process0 for new biography, and is correctly decoded HARQ
Data in Process0, therefore, not to sending node on the corresponding feedback resources of HARQ Process0
HARQ feedback is carried out, while delivering the decoded data to high level；
Step 3：
Sending node A1 does not solve nack message on the corresponding feedback resources of HARQ Process0, then
New biography processing is carried out to HARQ Process0, and is designated as passing；
Step 4：
Step 4.1：Receiving node B11 judges that HARQ Process0 proceed new biography for new biography, then and connect
Receipts processing；
Step 4.2：Receiving node B12 judges that HARQ Process0 proceed new biography for new biography, then and connect
Receipts processing.
Embodiment two：HARQ is retransmitted
Sending node A2 carries out point to receiving node B21, receiving node B22 and receiving node B23 and arrives many
The HARQ transmission of point；It is IR modes to make HARQ retransmission schemes；HARQ maximum retransmissions are 3.
Fig. 6 is the schematic diagram that HARQ according to embodiments of the present invention is retransmitted, as shown in fig. 6, can include such as
Lower step：
Step 1：Sometime, sending node A2 carries out new data transmission by HARQ Process0,
And new biography is designated as, while caching the data；
Step 2：
Step 2.1：Receiving node B21 judges HARQ Process0 for new biography, and is correctly decoded HARQ
Data in Process0, therefore, not to sending node on the corresponding feedback resources of HARQ Process0
HARQ feedback is carried out, while delivering the decoded data to high level；
Step 2.2：Receiving node B22 judges that HARQ Process0, for new biography, mistakenly decode HARQ
Data in Process0, therefore, enter on the corresponding feedback resources of HARQ Process0 to sending node
Row NACK feeds back, while the data that caching is received；
Step 2.3：Receiving node B23 judges that HARQ Process0, for new biography, mistakenly decode HARQ
Data in Process0, therefore, enter on the corresponding feedback resources of HARQ Process0 to sending node
Row NACK feeds back, while the data that caching is received；
Step 3：
Sending node A2 solves nack message on the corresponding feedback resources of HARQ Process0, judges
Also 3 times re-transmissions, then carry out retransmission process, and indicate to attach most importance to HARQ Process0 by IR modes
Pass；
Step 4：
Step 4.1：Receiving node B21 judges HARQ Process0 for re-transmission, and the HARQ Process0
It is nearest be transmitted as being properly received, then reception processing is not carried out to the data；
Step 4.2：Receiving node B22 judges HARQ Process0 for re-transmission, and the HARQ Process0
It is nearest be transmitted as garbled-reception, then the data and the data of the last caching of reception are carried out IR conjunctions
And, decoding process is then carried out again；
Step 4.3：Receiving node B23 judges HARQ Process0 for re-transmission, and the HARQ Process0
It is nearest be transmitted as garbled-reception, then the data and the data of the last caching of reception are carried out IR conjunctions
And, decoding process is then carried out again.
Embodiment three：HARQ bag discard processings
Sending node A3 carries out point-to-multipoint HARQ to receiving node B31 and receiving node B32 and passed
It is defeated；It is CC modes to make HARQ retransmission schemes；HARQ maximum retransmissions are 1.Fig. 7 is according to this
The schematic diagram of the HARQ bag discard processings of inventive embodiments, as shown in fig. 7, the processing can be included such as
Lower step：
Step 1：Sometime, sending node A3 carries out data new biography by HARQ Process3, and
New biography is designated as, while caching the data；
Step 2：
Step 2.1：Receiving node B31 judges that HARQ Process3, for new biography, mistakenly decode HARQ
Data in Process3, therefore, enter on the corresponding feedback resources of HARQ Process3 to sending node
Row NACK feeds back, while the data that caching is received；
Step 2.2：Receiving node B32 judges that HARQ Process3, for new biography, mistakenly decode HARQ
Data in Process3, therefore, enter on the corresponding feedback resources of HARQ Process3 to sending node
Row NACK feeds back, while the data that caching is received；
Step 3：
Sending node A3 solves nack message on the corresponding feedback resources of HARQ Process3, judges
Also 1 time re-transmission, then carry out retransmission process, and indicate to attach most importance to HARQ Process3 by CC modes
Pass；
Step 4：
Step 4.1：Receiving node B31 judges HARQ Process3 for re-transmission, and the HARQ Process3
It is nearest be transmitted as garbled-reception, then the data and the data of the last caching of reception are carried out CC conjunctions
And；Then decoding process is carried out again, the data in HARQ Process3 are correctly decoded, therefore, in HARQ
HARQ feedback is not carried out to sending node on the corresponding feedback resources of Process3, should while being delivered to high level
Decoded data；
Step 4.2：Receiving node B32 judges HARQ Process3 for re-transmission, and the HARQ Process3
It is nearest be transmitted as garbled-reception, then the data of reception are carried out CC conjunctions with the last data preserved
And；Then decoding process is carried out again, mistakenly decodes the data in HARQ Process3, therefore,
NACK feedbacks are carried out to sending node on the corresponding feedback resources of HARQ Process3, are merged while caching
Data afterwards；
Step 5：
Sending node A3 solves nack message on the corresponding feedback resources of HARQ Process3, judges
HARQ Process3 have been maxed out number of retransmissions, therefore, to the data cached of HARQ Process3
Abandon, while carrying out new data transmission and processing.
Step 6：
Step 6.1：Receiving node B31 judges HARQ Process3 for new biography, then carries out new biography processing；
Step 6.2：Receiving node B32 judges HARQ Process3 for new biography, then is cached before abandoning
Data, and carry out new biography processing.
The problem of being solved in the prior art without caused by HARQ retransmission mechanism by above-described embodiment,
Improve the reliability of point-to-multipoint transmission.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for ability
For the technical staff in domain, the present invention can have various modifications and variations.It is all in the spirit and principles in the present invention
Within, any modification, equivalent substitution and improvements made etc., should be included in protection scope of the present invention it
It is interior.
Claims (24)
1. a kind of method for transmission processing, it is characterised in that including：
Sending node carries out identical data transfer simultaneously to multiple receiving nodes, wherein, each packet is equal
It is assigned a feedback resources；
For each receiving node, in the case where needing to be fed back, in the corresponding feedback money of the packet
The data from the sending node received are fed back on source.
2. according to the method described in claim 1, it is characterised in that
The sending node carries out identical data transfer to the multiple receiving node simultaneously to be included：The hair
Node is sent to the multiple receiving node while carrying out identical HARQ data transmission；
Carrying out feedback to the data from the sending node received includes：To receiving from described
The data of sending node carry out HARQ feedback.
3. according to the method described in claim 1, it is characterised in that in the corresponding feedback of the packet
HARQ feedback is carried out in resource to be included：
Synchronized on the corresponding feedback resources of the packet or asynchronous HARQ feedback, wherein, institute
It is fixed with the corresponding HARQ transmission time to state the synchronous HARQ feedback representation HARQ feedback time；
The asynchronous HARQ represent the HARQ feedback time be with the corresponding HARQ transmission time it is unfixed,
The identification information of packet is carried during HARQ feedback.
4. according to the method in any one of claims 1 to 3, it is characterised in that described each
Packet also carries at least one of：New data instruction, retransmit, HARQ feedback resource are indicated.
5. method according to claim 2, it is characterised in that the NACK of HARQ feedback
Information is characterized by signal.
6. method according to claim 5, it is characterised in that the signal includes at least one of：
Pulse, modulation symbol.
7. according to the method described in claim 1, it is characterised in that the sending node connects to the multiple
Receiving node, progress identical data transfer includes simultaneously：
The sending node carries out identical data transfer on the same resource to the multiple receiving node.
8. method according to claim 7, it is characterised in that the resource include it is following at least
One of：Time-domain resource, frequency domain resource, code domain resource, spatial domain resource.
9. according to the method described in claim 1, it is characterised in that the sending node receives section to described
The link of point is in synchronous regime；The receiving node to the sending node link be in synchronous regime,
Asynchronous state or desynchronizing state.
10. according to the method described in claim 1, it is characterised in that also include：
The sending node carries out soft merging or increment to during receiving node progress HARQ re-transmissions
Redundant retransmission.
11. method according to claim 2, it is characterised in that
Each receiving node, if correctly solving packet, is not carried out to the sending node
HARQ feedback；If not solving packet correctly, on the corresponding feedback resources of the packet
Feed back nack message；
The sending node, is detected on the feedback resources, if detecting nack message,
Retransmission process then is carried out to corresponding packet, if not detecting nack message, then it is assumed that correspondence
Packet be properly received by all receiving nodes, and carry out new data transmission and processing.
12. the method according to claim 10 or 11, it is characterised in that
The sending node judges corresponding number after the nack message of receiving node transmission is received
Defined thresholding whether is reached according to the number of retransmissions of bag, if it is, abandoning the packet, and is carried out newly
Data transmission and processing；If it is not, then being retransmitted to the packet.
13. a kind of transmission processing device, it is characterised in that including：
Sending module, in sending node, for carrying out identical data biography simultaneously to multiple receiving nodes
It is defeated, wherein, each packet is assigned with a feedback resources；
Feedback module, in receiving node, in the case where needing to be fed back, in the packet
The data from the sending node received are fed back on corresponding feedback resources.
14. device according to claim 13, it is characterised in that the sending module, for
The multiple receiving node carries out identical HARQ data transmission simultaneously；The feedback module, for pair
The data from the sending node received carry out HARQ feedback.
15. device according to claim 13, it is characterised in that the feedback module is used at this
Synchronized on the corresponding feedback resources of packet or asynchronous HARQ feedback, wherein, the synchronization
HARQ feedback represents that the HARQ feedback time is fixed with the corresponding HARQ transmission time；It is described different
Step HARQ represents that the HARQ feedback time is unfixed, HARQ with the corresponding HARQ transmission time
The identification information of packet is carried during feedback.
16. the device according to any one of claim 13 to 15, it is characterised in that described each
Packet also carries at least one of：New data instruction, retransmit, HARQ feedback resource are indicated.
17. device according to claim 14, it is characterised in that the NACK of HARQ feedback
Information is characterized by signal.
18. device according to claim 17, it is characterised in that the signal include it is following at least
One of：Pulse, modulation symbol.
19. device according to claim 13, it is characterised in that the sending module is used for institute
State multiple receiving nodes and carry out identical data transfer on the same resource.
20. device according to claim 19, it is characterised in that the resource include it is following at least
One of：Time-domain resource, frequency domain resource, code domain resource, spatial domain resource.
21. device according to claim 13, it is characterised in that the sending node connects described in
The link for receiving node is in synchronous regime；The link of the receiving node to the sending node is in synchronous shape
State, asynchronous state or desynchronizing state.
22. device according to claim 14, it is characterised in that
The sending module, for the receiving node carry out HARQ re-transmissions when, carry out soft merging or
Person's incremental redundancy is retransmitted.
23. device according to claim 14, it is characterised in that
The feedback module, in the case where packet correctly can be solved, not to the sending node
Carry out HARQ feedback；It is corresponding described in the packet in the case where correctly not solving packet
Nack message is fed back on feedback resources；
The sending node also includes detection module, and the detection module is used to carry out on the feedback resources
Detection, if detecting nack message, carries out retransmission process, if do not had to corresponding packet
Detect nack message, then it is assumed that corresponding packet is properly received by all receiving nodes, is gone forward side by side
The new data transmission and processing of row.
24. the device according to claim 22 or 23, it is characterised in that
The sending module, for receive receiving node transmission nack message after, judge pair
Whether the number of retransmissions for the packet answered reaches defined thresholding, if it is, abandoning the packet, goes forward side by side
The new data transmission and processing of row；If it is not, then being retransmitted to the packet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178385.XA CN107231617A (en) | 2016-03-25 | 2016-03-25 | Method for transmission processing and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178385.XA CN107231617A (en) | 2016-03-25 | 2016-03-25 | Method for transmission processing and device |
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| CN107231617A true CN107231617A (en) | 2017-10-03 |
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| CN201610178385.XA Withdrawn CN107231617A (en) | 2016-03-25 | 2016-03-25 | Method for transmission processing and device |
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| WO2010094148A1 (en) * | 2009-02-18 | 2010-08-26 | 上海贝尔股份有限公司 | Method and evolution base station for hybrid automatic repeat request |
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| WO2010094148A1 (en) * | 2009-02-18 | 2010-08-26 | 上海贝尔股份有限公司 | Method and evolution base station for hybrid automatic repeat request |
| CN105099628A (en) * | 2014-04-18 | 2015-11-25 | 成都鼎桥通信技术有限公司 | Method for realizing data retransmission in cluster service, base station and monitoring terminal |
| CN105337711A (en) * | 2015-09-24 | 2016-02-17 | 武汉虹信通信技术有限责任公司 | Transmission method of single-cell point-to-multipoint transmission system |
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