CN107231219A - Method for transmission processing and device - Google Patents
Method for transmission processing and device Download PDFInfo
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- CN107231219A CN107231219A CN201610176821.XA CN201610176821A CN107231219A CN 107231219 A CN107231219 A CN 107231219A CN 201610176821 A CN201610176821 A CN 201610176821A CN 107231219 A CN107231219 A CN 107231219A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1861—Physical mapping arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses method for transmission processing and device, this method includes：The receiving node group that sending node is constituted to multiple receiving nodes carries out data transmission, wherein, each receiving node in the receiving node group maintains uplink synchronous with the sending node；All receiving nodes in the receiving node group are fed back by upload control resource to the data received.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
Retransmit), 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
The receiving node group that individual receiving node is constituted carries out data transmission, wherein, it is each in the receiving node group
Receiving node maintains uplink synchronous with the sending node；All receiving nodes in the receiving node group
The data received are fed back by upload control resource.
Further, carrying out feedback to the data received includes：HARQ is carried out to the data received
Feedback.
Further, each point-to-multipoint service includes an air interface identifier, wherein, it is described point-to-multipoint
Business is the business carried out data transmission by a sending node to multiple receiving nodes.
Further, the up control of the HARQ feedback of the sending node receiving node group all to its
Resource processed carries out shared distribution.
Further, the up control of the HARQ feedback of the sending node receiving node group all to its
Resource processed, which carries out shared distribution, to be included：HARQ of the sending node for its all receiving node group
One resource pool of upload control resource composition of feedback；In a Transmission Time Interval, sending node according to
The point-to-multipoint service distribution HARQ feedback resource that pre-defined rule is transmitted to the Transmission Time Interval；Wherein,
The pre-defined rule includes：The upload control resource determines according to the point-to-multipoint air interface identifier,
And there is the sending node to inform receiving node group.
Further, the nack message of HARQ feedback is characterized by signal.
Further, the signal includes at least one of：Pulse, modulation symbol.
Further, each receiving node in the receiving node group remains up with the sending node
Synchronously include：The receiving node safeguards receiving node with the sending node by cycle or event form
Uplink transmission time between sending node is synchronous.
Further, in addition to：If some receiving node enters uplink loss state with the sending node,
Then the receiving node does not use the upload control resource and carries out HARQ feedback.
Further, in addition to：The sending node obtains receiving nodes all in the receiving node group
It is in user equipment (UE) uplink loss state, it is determined that the receiving node group is group uplink loss state；
The sending node obtains at least one receiving node in the receiving node group and is in UE uplink sync status,
It is group uplink sync status then to determine the receiving node group.
Further, in addition to：The sending node determines that the receiving node group is in group uplink loss shape
In the case of state, the upload control resource is not matched somebody with somebody to the receiving node component, or discharge the allocated
The upload control resource；The sending node determines that the receiving node group is in group uplink sync status
In the case of, match somebody with somebody the upload control resource to the receiving node component.
Further, carrying out the HARQ feedback includes：Synchronize or asynchronous HARQ feedback,
Wherein, the synchronous HARQ feedback representation HARQ feedback time is with the corresponding HARQ transmission time
Fixed；The asynchronous HARQ represents that the HARQ feedback time is not with the corresponding HARQ transmission time
Fixed, the identification information of packet is carried during HARQ feedback.
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 upload control resource includes：For the resource used under cell uplink synchronous condition.
Further, the upload control resource includes：PUCCH channels and/or PUSCH channels.
Further, for the upload control resource, the identification information based on point-to-multipoint transmission services come
Divide.
Further, the feelings of HARQ feedback are carried out using the upload control resource in point-to-multipoint service
Under condition, the upload control resource is determined by the identification information of the point-to-multipoint service.
According to another aspect of the present invention, a kind of method for transmission processing is additionally provided, including：Sending node to
The receiving node group that multiple receiving nodes are constituted carries out data transmission, wherein, it is every in the receiving node group
Individual receiving node maintains uplink synchronous with the sending node；The sending node is in corresponding upload control
Detected in resource, in the case where detecting nack message, carry out retransmission process；Wherein, institute
It is the resource that all receiving nodes are fed back to state upload control resource.
Further, the feedback of progress includes：HARQ feedback.
According to another aspect of the present invention there is provided a kind of method for transmission processing, including：In receiving node
Receiving node in group receives the data that sending node is sent to the receiving node group, wherein, it is described to receive
Each receiving node in node group maintains uplink synchronous with the sending node；The receiving node judges
Whether the data received are wrong, if wrong, fed back by upload control resource；Wherein, its
In, the upload control resource is the resource that all receiving nodes are fed back.
Further, the feedback of progress includes：HARQ feedback.
According to another aspect of the present invention there is provided a kind of transmission processing device, including：Transport module,
In sending node, the receiving node group for being constituted to multiple receiving nodes carries out data transmission, wherein,
Each receiving node in the receiving node group maintains uplink synchronous with the sending node；Feedback module,
In receiving node, for being fed back by upload control resource；Wherein, the upload control resource
It is the resource that all receiving nodes are fed back.
Further, the feedback module carries out HARQ feedback to the data received.
Further, each point-to-multipoint service includes an air interface identifier, wherein, it is described point-to-multipoint
Business is the business carried out data transmission by a sending node to multiple receiving nodes.
Further, in addition to：Distribute module, in the sending node, for all being connect to its
The upload control resource for receiving the HARQ feedback of node group carries out shared distribution.
Further, the distribute module, for the HARQ feedback for its all receiving node group
One resource pool of upload control resource composition；In a Transmission Time Interval, sending node is according to predetermined
Rule distributes HARQ feedback resource to the point-to-multipoint service that the Transmission Time Interval is transmitted；Wherein, institute
Stating pre-defined rule includes：The upload control resource determines according to the point-to-multipoint air interface identifier, and
There is the sending node to inform receiving node group.
Further, the nack message of HARQ feedback is characterized by signal.
Further, the signal includes at least one of：Pulse, modulation symbol.
Further, the receiving node is safeguarded by cycle or event form with the sending node and received
Uplink transmission time between node and sending node is synchronous.
Further, the feedback module, for entering up in some receiving node and the sending node
In the case of desynchronizing state, do not use the upload control resource and carry out HARQ feedback.
Further, in addition to：Determining module, is obtained in the receiving node group positioned at the sending node
All receiving nodes are in user equipment (UE) uplink loss state, it is determined that the receiving node group is
Group uplink loss state；Obtain at least one receiving node in the receiving node group and be in UE uplink synchronous
State, it is determined that the receiving node group is group uplink sync status.
Further, in addition to：Distribute module, in the sending node, for determining the reception
In the case that node group is in group uplink loss state, the upload control is not matched somebody with somebody to the receiving node component
Resource, or the allocated upload control resource of release；It is additionally operable to determine at the receiving node group
In the case of group uplink sync status, match somebody with somebody the upload control resource to the receiving node component.
Further, the feedback module is used to synchronize 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.
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 upload control resource includes：For the resource used under cell uplink synchronous condition.
Further, the upload control resource includes：PUCCH channels and/or PUSCH channels.
Further, for the upload control resource, the identification information based on point-to-multipoint transmission services come
Divide.
Further, the feelings of HARQ feedback are carried out using the upload control resource in point-to-multipoint service
Under condition, the upload control resource is determined by the identification information of the point-to-multipoint service.
By the present invention, the receiving node group constituted using sending node to multiple receiving nodes carries out data biography
It is defeated, wherein, each receiving node in the receiving node group maintains uplink synchronous with the sending node；
All receiving nodes in the receiving node group are carried out anti-by upload control resource to the data received
Feedback.The problem of being solved in the prior art without caused by retransmission mechanism by the present invention, is improved a little to many
The reliability of point transmission.
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 industry business 1；
Fig. 4 is terminal UE 21 according to embodiments of the present invention while being carried out to UE22, UE23 and UE24
The schematic diagram of the point-to-multipoint transmission of business 3；
Fig. 5 is the schematic diagram of synchronous maintenance according to embodiments of the present invention；
Fig. 6 is HARQ feedback base station side schematic diagram according to embodiments of the present invention；
Fig. 7 is the schematic diagram one of HARQ feedback according to embodiments of the present invention；
Fig. 8 is the schematic diagram two of HARQ feedback according to embodiments of the present invention；
Fig. 9 is the schematic diagram three of HARQ feedback according to embodiments of the present invention；And,
Figure 10 is the schematic diagram four of HARQ feedback 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.
Fig. 1 is the flow chart of method for transmission processing according to embodiments of the present invention, as shown in figure 1, the flow
Comprise the following steps：
Step S102, the receiving node group that sending node is constituted to multiple receiving nodes carries out data transmission,
Wherein, each receiving node in the receiving node group maintains uplink synchronous with the sending node；
All receiving nodes in step S104, the receiving node group are docked by a upload control resource
The data received are fed back.
The mode of feedback has many kinds, for example, the more commonly used feedback system is HARQ feedback.Below
Illustrated by taking HARQ feedback as an example.A kind of mode of feedback is provided by above-mentioned steps, is solved
In the prior art without caused by retransmission mechanism the problem of, improve the reliability of point-to-multipoint transmission.
In an optional embodiment, each point-to-multipoint service may each comprise an air interface identifier,
Wherein, point-to-multipoint service is the business carried out data transmission by a sending node to multiple receiving nodes.
In an optional embodiment, the HARQ of the sending node receiving node group all to its is anti-
The upload control resource of feedback carries out shared distribution.For example, sending node is for its all receiving node group
One resource pool of upload control resource composition of HARQ feedback；In a Transmission Time Interval, section is sent
The point-to-multipoint service that point is transmitted according to pre-defined rule to the Transmission Time Interval distributes HARQ feedback resource；
Wherein, pre-defined rule includes：Upload control resource is determined according to point-to-multipoint air interface identifier, and has hair
Node is sent to inform receiving node group.
In an optional embodiment, the nack message of HARQ feedback is characterized by signal,
For example, may map on a modulation symbol of upload control resource, in another example, it can be believed with NACK
Breath is characterized by pulse.
In an optional embodiment, receiving node is tieed up with sending node by cycle or event form
The uplink transmission time protected between receiving node and sending node is synchronous.
In an optional embodiment, if some receiving node enters uplink loss shape with sending node
State, then the receiving node do not use the upload control resource carry out HARQ feedback.
In an optional embodiment, it is equal that sending node obtains receiving nodes all in receiving node group
In user equipment (UE) uplink loss state, it is determined that receiving node group is group uplink loss state；Send
Node obtains at least one receiving node in receiving node group and is in UE uplink sync status, it is determined that receive
Node group is group uplink sync status.
In an optional embodiment, sending node determines that receiving node group is in group uplink loss state
In the case of, do not match somebody with somebody upload control resource, or the allocated upload control of release to receiving node component
Resource；In the case that sending node determines that receiving node group is in group uplink sync status, to receiving node group
Distribute upload control resource.
In an optional embodiment, synchronize or asynchronous HARQ feedback, wherein, it is synchronous
HARQ feedback represents that the HARQ feedback time is fixed with the corresponding HARQ transmission time；It is asynchronous
HARQ represents that the HARQ feedback time is unfixed with the corresponding HARQ transmission time, and HARQ is anti-
The identification information of packet is carried during feedback.
Alternatively, 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.
Alternatively, upload control resource includes：For the resource used under cell uplink synchronous condition.
Alternatively, upload control resource includes：PUCCH channels and/or PUSCH channels.
Alternatively, for upload control resource, divided based on the identification information of point-to-multipoint transmission services.
Alternatively, in the case where point-to-multipoint service carries out HARQ feedback using upload control resource,
Upload control resource is determined by the identification information of point-to-multipoint service.
Another method for transmission processing is additionally provided in the present embodiment, and this method is carried out from sending node side
Description, this method comprises the following steps：The receiving node group that sending node is constituted to multiple receiving nodes is entered
Row data transfer, wherein, each receiving node in receiving node group maintains uplink synchronous with sending node；
Sending node is detected in corresponding upload control resource, in the case where detecting nack message,
Carry out retransmission process；Wherein, upload control resource is the resource that all receiving nodes are fed back.
Alternatively, the feedback of progress includes：HARQ feedback.
Another method for transmission processing is additionally provided in the present embodiment, and this method is from the description of receiving node side
, this method comprises the following steps：Receiving node in receiving node group receives sending node and saved to reception
The data that point group is sent, wherein, each receiving node in receiving node group remains up with sending node
It is synchronous；Receiving node judges whether the data received are wrong, if wrong, pass through upload control resource
Fed back；Wherein, wherein, upload control resource is the resource that all receiving nodes are fed back.
Alternatively, the feedback of progress includes：HARQ feedback.
A kind of transmission processing device is additionally provided in the present embodiment, Fig. 2 is transmission according to embodiments of the present invention
The structured flowchart of processing unit, as shown in Fig. 2 the processing unit includes：
Transport module 22, in sending node, the receiving node group for being constituted to multiple receiving nodes is entered
Row data transfer, wherein, each receiving node in receiving node group maintains uplink synchronous with sending node；
Feedback module 24, in receiving node, for being fed back by upload control resource；Wherein,
Upload control resource is the resource that all receiving nodes are fed back.
The data that 24 pairs of feedback module is received carry out HARQ feedback.
Alternatively, each point-to-multipoint service includes an air interface identifier, wherein, point-to-multipoint service is
The business that multiple receiving nodes carry out data transmission is given by a sending node.
Alternatively, in addition to：Distribute module, in sending node, for the receiving node all to its
The upload control resource of the HARQ feedback of group carries out shared distribution.
Alternatively, distribute module, for the up of the HARQ feedback for its all receiving node group
Control one resource pool of resource composition；In a Transmission Time Interval, sending node is according to pre-defined rule pair
The point-to-multipoint service distribution HARQ feedback resource of Transmission Time Interval transmission；Wherein, pre-defined rule
Including：Upload control resource is determined according to point-to-multipoint air interface identifier, and has sending node to inform reception
Node group.
Alternatively, the nack message of HARQ feedback is characterized by signal.For example, the signal can be with
Including at least one of：Pulse, modulation symbol.
Alternatively, receiving node safeguards receiving node and transmission with sending node by cycle or event form
Uplink transmission time between node is synchronous.
Alternatively, feedback module 24, for entering uplink loss state in some receiving node and sending node
In the case of, do not use the upload control resource and carry out HARQ feedback.
Alternatively, the device also includes：Determining module, obtains in receiving node group positioned at sending node and owns
Receiving node be in user equipment (UE) uplink loss state, it is determined that receiving node group for group it is up lose
Step state；Obtain at least one receiving node in receiving node group and be in UE uplink sync status, it is determined that
Receiving node group is group uplink sync status.
Alternatively, the device also includes：Distribute module, in sending node, for determining receiving node
In the case that group is in group uplink loss state, upload control resource is not matched somebody with somebody to receiving node component, or release
Put the allocated upload control resource；It is additionally operable to determine the feelings that receiving node group is in group uplink sync status
Under condition, match somebody with somebody upload control resource to receiving node component.
Alternatively, feedback module 24 is used to synchronize or asynchronous HARQ feedback, wherein, it is synchronous
HARQ feedback represents that the HARQ feedback time is fixed with the corresponding HARQ transmission time；It is asynchronous
HARQ represents that the HARQ feedback time is unfixed with the corresponding HARQ transmission time, and HARQ is anti-
The identification information of packet is carried during feedback.
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；
Alternatively, sending node also includes detection module, and detection module is used to be detected on feedback resources,
If detecting nack message, 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.
Alternatively, upload control resource can include：For the resource used under cell uplink synchronous condition.
Alternatively, upload control resource includes：PUCCH channels and/or PUSCH channels.
Alternatively, for upload control resource, divided based on the identification information of point-to-multipoint transmission services.
Alternatively, in the case where point-to-multipoint service carries out HARQ feedback using upload control resource,
Upload control resource is determined by the identification information of point-to-multipoint service.
The problem of being solved in the prior art without caused by retransmission mechanism by the present embodiment, improves and a little arrives
The reliability of multicast communication.
Illustrated with reference to an alternative embodiment.
A kind of point-to-multipoint HARQ feedback method provided in the present embodiment, including：One transmission
Node carries out data transmission to receiving node group；Each receiving node is maintained with sending node in receiving node group
Uplink synchronous；All receiving nodes carry out HARQ feedback by a upload control resource；For each
Receiving node, including：If being correctly decoded the packet of HARQ transmission, do not carried out to sending node
HARQ feedback；If the packet of decoded in error HARQ transmission, in the corresponding feedback of the packet
Nack message is fed back in resource.
The business referred to as point-to-multipoint service carried out data transmission by a sending node to receiving node group；
One point-to-multipoint service needs an air interface identifier, such as G-RNTI (Group-Radio Network
Temporary Identity, organize Radio Network Temporary Identifier), the G-RNTI of different point-to-multipoint service is not
Together.
One sending node enters for the upload control resource of the HARQ feedback of its all receiving node group
The shared distribution of row, including：Sending node is up for the HARQ feedback of its all receiving node group
Control one resource pool of resource composition；One TTI is (between Transmission Time Interval, transmission time
Every) in, sending node distributes HARQ feedback according to the criterion A point-to-multipoint services transmitted to the TTI
Resource；Criterion A can include：Upload control resource can be by the G-RNTI of corresponding point-to-multipoint service
To determine；Sending node needs to inform receiving node group.
Nack message and the mapping of upload control resource：The nack message of HARQ feedback can pass through
One signal is characterized, and nack message is mapped on a modulation symbol of upload control resource, for example
BPSK modulation 1, or QPSK modulation 1；Or characterized with a pulse.
Downlink is in synchronous regime.Each receiving node maintains uplink synchronous with sending node：Receive section
Point safeguards that the uplink transmission time between them is synchronous with sending node by cycle or event form；Such as
Really some receiving node and sending node enter uplink loss state, then not use this up for the receiving node
Control resource carries out the HARQ feedback.The uplink loss state of receiving node and sending node is referred to as on UE
Row step-out；The uplink sync status of receiving node and sending node is referred to as UE uplink synchronous.
Sending node judges for the uplink link status of a receiving node group：If in the receiving node group
All receiving nodes are in UE uplink loss states, then judge the receiving node group for group uplink loss
State；If at least one receiving node is in UE uplink sync status in the receiving node group,
Judge the receiving node group for group uplink sync status.
, should when the up-link of it and sending node is in UE uplink loss states for receiving node
Receiving node is carried out without using the HARQ feedback resource (HARQ feedback resource is upload control resource)
The HARQ feedback；When the up-link of it and sending node is in UE uplink sync status, the reception
Node carries out the HARQ feedback using the HARQ feedback resource.
For sending node, when it is judged that the uplink link status of some receiving node group is in group uplink loss
During state, then to the receiving node component, with HARQ feedback resource, (HARQ feedback resource is not up
Control resource)；When the up-link of the receiving node group is in group uplink sync status, then the reception is given
Node component matches somebody with somebody HARQ feedback resource.
Think that the receiving node will not reuse the upload control resource and carry out the HARQ feedback；For one
Individual receiving node group, if sending node judges that receiving nodes all in the receiving node group are all up therewith
Step-out, then discharge the HARQ feedback resource of the receiving node group.
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 be with the corresponding HARQ transmission time it is unfixed,
HARQ Process ID need to be carried during HARQ feedback.
Receiving node group is receiving node set, and they receive the data of identical sending node simultaneously.
Point-to-multipoint HARQ transmission service definition is used for point-to-multipoint service.
Point-to-multipoint service is transmitted using a RNTI, is made as G-RNTI.
Sending node carries out data transmission to receiving node group；And to receiving node component with a HARQ
Feedback resources；The sending node is detected in corresponding HARQ feedback resource, if detecting NACK
Information, then carry out HARQ retransmission process to the data；If not checking nack message, then it is assumed that
Corresponding packet is properly received by all receiving nodes, and proceeds the processing of HARQ new biographies.
HARQ retransmission process：Judge whether the corresponding packets of the NACK reach maximum HARQ number of retransmissions,
If it is, abandoning the packet, and carry out new data transmission and processing；If it is not, then to the packet
Carry out retransmission process.
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.
Embodiment one：Point-to-multipoint transmitting scene
Scene one：Base station (eNB) to UE11, UE12 and UE13 in cell while carry out business 1
Point-to-multipoint transmission, the point-to-multipoint transmission of business 2 is carried out to UE21 and UE22.Make UE11, UE12
It is that receiving node group R1, UE21 and UE22 are receiving node group R2 with UE13.As shown in Figure 3.
Scene two：Terminal UE 21 carries out the point-to-multipoint of business 3 to UE22, UE23 and UE24 simultaneously
Transmission, it is receiving node group R3 to make UE22, UE23 and UE24.As shown in Figure 4.
Embodiment two：Synchronous maintenance
The receiving node group R1 of scene 1 based on embodiment one.As shown in Figure 5.
In t0 to the t1 periods, UE11, UE12 and UE13 are in UE uplink sync status, base station
Judge group R1 for group uplink sync status；
UE uplink loss states are in t1 to t2 periods, UE11, UE12 and UE13 are in
UE uplink sync status, base station judges group R1 for group uplink sync status；
In t2 to t3 periods, UE11 and UE12 are in UE uplink loss states, and UE13 locates
In UE uplink sync status, base station judges group R1 for group uplink sync status；
In t3 to the t4 periods, UE11, UE12 and UE13 are in UE uplink loss states, base station
Judge group R1 for group uplink loss state；
In t4 to t5 periods, UE11 and UE13 are in UE uplink loss states, and UE12 locates
In UE uplink sync status, base station judges group R1 for group uplink sync status.
Embodiment three：The shared distribution of HARQ feedback resource
Scene 1 based on embodiment one.Make RTT (the Round Trip Time, when coming and going of HARQ transmission
Between) it is 8 TTI；It is 4 TTI that HARQ NACK feedbacks, which lag behind the time delay of HARQ transmission,.
Abscissa represents the time, at intervals of TTI.As shown in Figure 6.
N-hour：
Base station judgement group R1 and R2 are a group uplink sync status；And have data to transmission (new biography or
Person retransmits).
HARQ processes are used to be transmitted, HP0 for HP0 (HARQ Processing 0) to a group R1
Corresponding feedback resources are the upload control resource S0 at N+4 moment；HARQ processes are used to group R2
It is transmitted for HP2；To the upload control resource S1 that the feedback resources that HP2 is distributed are the N+4 moment.
Base station is sent by HARQ transmission control information simultaneously：HP0, new biography and retransmit, upload control money
Source S1 information.
The N+1 moment：
Base station judgement group R1 and R2 are a group uplink sync status；Organize R1 and R2 and equal no data will be passed
Defeated (including new biography and re-transmission).
The N+2 moment：
Base station judges group R1 for group uplink loss state, and group R2 is group uplink sync status；Group R1 is countless
According to transmit (including new biography and re-transmission), group R2 has data to transmit (new biography or re-transmission).
HARQ processes are used to be transmitted for HP3 a group R2, the corresponding feedback resources of HP3 are N+6
The upload control resource S1 at moment.
The N+3 moment：
Base station judges group R1 for group uplink loss state, and group R2 is group uplink sync status；Group R1 has number
According to transmit (new biography or re-transmission), group R2 no datas will be transmitted (including new biography and re-transmission).
HARQ processes are used to be transmitted for HP1 a group R1, because group R1 group state is lost to be up
Step state, therefore, the corresponding feedback resources of HP1 are not distribute upload control resource at the N+7 moment.
The N+4 moment：
Base station judgement group R1 and R2 are a group uplink loss state；Group R1 no datas will transmit (including new
Pass and retransmit), group R2 has data to transmit (new biography or re-transmission).
HARQ processes are used to be transmitted for HP4 a group R2, because group R2 group state is lost to be up
Step state, therefore, the corresponding feedback resources of HP4 are not distribute upload control resource at the N+8 moment.
The N+5 moment：
Base station judgement group R1 and R2 are a group uplink loss state；Group R1 have data to transmission (new biography or
Person retransmits), group R2 no datas will be transmitted (including new biography and re-transmission).
HARQ processes are used to be transmitted for HP2 a group R1, because group R1 group state is lost to be up
Step state, therefore, the corresponding feedback resources of HP2 are not distribute upload control resource at the N+9 moment.
The N+6 moment：
Base station judges group R1 for group uplink sync status, and group R2 is group uplink loss state；Group R1 and
R2 and equal no data will be transmitted (including new biography and re-transmission).
The N+7 moment：
Base station judgement group R1 and group R2 is a group uplink sync status；Organize R1 and R2 and have data to
Transmit (including new biography and re-transmission).
HARQ processes are used to be transmitted for HP3 a group R1, the corresponding feedback resources of HP3 are N+11
The upload control resource S0 at moment；HARQ processes are used to be transmitted for HP5 a group R2, HP5 pairs
The feedback resources answered are the upload control resource S2 at N+11 moment.
Example IV：HARQ feedback (one)
Situation 1
The group R1 of scene 1 based on embodiment three.As shown in Figure 7.
In n-hour：
Base station judges group R1 for group uplink sync status；Have data to transmit (new biography or re-transmission).
HARQ processes are used to be transmitted for HP0 a group R1, the corresponding feedback resources of HP0 are N+4
The upload control resource S0 at moment.
UE11 decoded in error HP0 data in group R1, lose because its uplink link status is that UE is up
Step, therefore, does not feed back nack message at the N+4 moment on upload control resource S0；
UE12 decoded in error HP0 data in group R1, because its uplink link status is UE up same
Step, therefore, nack message is fed back at the N+4 moment on upload control resource S0；
UE13 in group R1 is correctly decoded HP0 data, therefore, not at the N+4 moment in upload control
HARQ feedback is carried out on resource S0.
Situation 2
The group R1 of scene 1 based on embodiment three.As shown in Figure 8.
In n-hour：
Base station judges group R1 for group uplink sync status；Have data to transmit (new biography or re-transmission).
HARQ processes are used to be transmitted for HP0 a group R1, the corresponding feedback resources of HP0 are N+4
The upload control resource S0 at moment.
UE11 in group R1 is correctly decoded HP0 data；Its uplink link status is UE uplink loss.
At the N+4 moment HARQ feedback is not carried out on upload control resource S0；
UE12 decoded in error HP0 data in group R1, because its uplink link status is UE up same
Step, therefore, nack message is fed back at the N+4 moment on upload control resource S0；
UE13 in group R1 is correctly decoded HP0 data, because its uplink link status is UE up same
Step, therefore, nack message is fed back at the N+4 moment on upload control resource S0.
Situation 3
The group R1 of scene 1 based on embodiment three.As shown in Figure 9.
In n-hour：
Base station judges group R1 for group uplink sync status；Have data to transmit (new biography or re-transmission).
HARQ processes are used to be transmitted for HP0 a group R1, the corresponding feedback resources of HP0 are N+4
The upload control resource S0 at moment.
UE11 in group R1 is correctly decoded HP0 data, therefore, not at the N+4 moment in upload control
HARQ feedback is carried out on resource S0；
UE12 in group R1 is correctly decoded HP0 data, therefore, not at the N+4 moment in upload control
HARQ feedback is carried out on resource S0；
UE13 in group R1 is correctly decoded HP0 data, therefore, not at the N+4 moment in upload control
HARQ feedback is carried out on resource S0.
Embodiment five：HARQ feedback (two)
The group R1 of scene 1 based on embodiment three.As shown in Figure 10.
The N+3 moment：
Base station judges group R1 for group uplink loss state；Group R1 has data to transmit (new biography or re-transmission).
HARQ processes are used to be transmitted for HP1 a group R1, because group R1 group state is lost to be up
Step state, therefore, the corresponding feedback resources of HP1 are not distribute upload control resource at the N+7 moment.
UE11 in group R1 is correctly decoded HP1 data；Its uplink link status is UE uplink loss.
At the N+7 moment HARQ feedback is not carried out on upload control resource S0；
UE12 decoded in error HP0 data in group R1, because its uplink link status is UE up same
Step, therefore, nack message is fed back at the N+4 moment on upload control resource S0；
UE13 in group R1 is correctly decoded HP0 data, because its uplink link status is UE up same
Step, therefore, nack message is fed back at the N+4 moment on upload control resource S0.
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 (38)
1. a kind of method for transmission processing, it is characterised in that including：
The receiving node group that sending node is constituted to multiple receiving nodes carries out data transmission, wherein, it is described to connect
Receive each receiving node in node group and maintain uplink synchronous with the sending node；
All receiving nodes in the receiving node group are entered by upload control resource to the data received
Row feedback.
2. according to the method described in claim 1, it is characterised in that feedback bag is carried out to the data received
Include：
HARQ feedback is carried out to the data received.
3. method according to claim 2, it is characterised in that each point-to-multipoint service includes one
Individual air interface identifier, wherein, the point-to-multipoint service is to be entered by a sending node to multiple receiving nodes
The business of row data transfer.
4. according to the method in claim 2 or 3, it is characterised in that the sending node is all to it
The upload control resource of HARQ feedback of receiving node group carry out shared distribution.
5. method according to claim 4, it is characterised in that the sending node all connects to its
Receiving the shared distribution of upload control resource progress of the HARQ feedback of node group includes：
Upload control resource structure of the sending node for the HARQ feedback of its all receiving node group
Into a resource pool；
In a Transmission Time Interval, sending node is transmitted according to pre-defined rule to the Transmission Time Interval
Point-to-multipoint service distributes HARQ feedback resource；Wherein, the pre-defined rule includes：The up control
Resource processed is determined according to the point-to-multipoint air interface identifier, and has the sending node to inform receiving node
Group.
6. method according to claim 2, it is characterised in that the NACK of HARQ feedback
Information is characterized by signal.
7. method according to claim 6, it is characterised in that the signal includes at least one of：
Pulse, modulation symbol.
8. method according to claim 1 or 2, it is characterised in that every in the receiving node group
Individual receiving node maintains uplink synchronous to include with the sending node：
The receiving node safeguards receiving node and hair with the sending node by cycle or event form
Send the uplink transmission time between node synchronous.
9. method according to claim 7, it is characterised in that also include：If some receiving node
Enter uplink loss state with the sending node, then the receiving node does not use the upload control resource and entered
Row HARQ feedback.
10. method according to claim 9, it is characterised in that also include：
The sending node obtains receiving nodes all in the receiving node group and is in user equipment (UE)
Uplink loss state, it is determined that the receiving node group is group uplink loss state；
The sending node obtains at least one receiving node in the receiving node group and is in UE uplink synchronous
State, it is determined that the receiving node group is group uplink sync status.
11. the method according to any one of claim 8 to 10, it is characterised in that also include：
In the case that the sending node determines that the receiving node group is in group uplink loss state, not to institute
Receiving node component is stated with the upload control resource, or the allocated upload control resource of release；
In the case that the sending node determines that the receiving node group is in group uplink sync status, to described
Receiving node component matches somebody with somebody the upload control resource.
12. method according to claim 2, it is characterised in that carrying out the HARQ feedback includes：
Synchronize or asynchronous HARQ feedback, wherein, the synchronous HARQ feedback representation HARQ
Feedback time is fixed with the corresponding HARQ transmission time；The asynchronous HARQ represents that HARQ is anti-
The feedback time is unfixed with the corresponding HARQ transmission time, and packet is carried during HARQ feedback
Identification information.
13. 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.
14. the method according to any one of claim 1 to 13, it is characterised in that the up control
Resource processed includes：For the resource used under cell uplink synchronous condition.
15. method according to claim 14, it is characterised in that the upload control resource includes：
PUCCH channels and/or PUSCH channels.
16. method according to claim 14, it is characterised in that for the upload control resource,
Divided based on the identification information of point-to-multipoint transmission services.
17. method according to claim 14, it is characterised in that in point-to-multipoint service using described
In the case that upload control resource carries out HARQ feedback, the upload control resource is by described point-to-multipoint
The identification information of business is determined.
18. a kind of method for transmission processing, it is characterised in that including：
The receiving node group that sending node is constituted to multiple receiving nodes carries out data transmission, wherein, it is described to connect
Receive each receiving node in node group and maintain uplink synchronous with the sending node；
The sending node is detected in corresponding upload control resource, is detecting nack message
In the case of, carry out retransmission process；Wherein, the upload control resource is that all receiving nodes are fed back
Resource.
19. method according to claim 18, it is characterised in that the feedback of progress includes：HARQ
Feedback.
20. a kind of method for transmission processing, it is characterised in that including：
Receiving node in receiving node group receives the data that sending node is sent to the receiving node group,
Wherein, each receiving node in the receiving node group maintains uplink synchronous with the sending node；
The receiving node judges whether the data received are wrong, if wrong, provided by upload control
Fed back in source；Wherein, wherein, the upload control resource is the resource that all receiving nodes are fed back.
21. method according to claim 20, it is characterised in that the feedback of progress includes：HARQ
Feedback.
22. a kind of transmission processing device, it is characterised in that including：
Transport module, in sending node, the receiving node group for being constituted to multiple receiving nodes is carried out
Data transfer, wherein, each receiving node in the receiving node group is maintained with the sending node
Row is synchronous；
Feedback module, in receiving node, for being fed back by upload control resource；Wherein, institute
It is the resource that all receiving nodes are fed back to state upload control resource.
23. device according to claim 22, it is characterised in that the feedback module is to receiving
Data carry out HARQ feedback.
24. device according to claim 23, it is characterised in that each point-to-multipoint service includes
One air interface identifier, wherein, the point-to-multipoint service is to multiple receiving nodes by a sending node
The business carried out data transmission.
25. the device according to claim 23 or 24, it is characterised in that also include：
Distribute module, in the sending node, the HARQ for the receiving node group all to its
The upload control resource of feedback carries out shared distribution.
26. device according to claim 25, it is characterised in that
The distribute module, the upload control for the HARQ feedback for its all receiving node group
One resource pool of resource composition；In a Transmission Time Interval, sending node is according to pre-defined rule to the biography
The point-to-multipoint service distribution HARQ feedback resource of defeated time interval transmission；Wherein, the pre-defined rule
Including：The upload control resource is determined according to the point-to-multipoint air interface identifier, and has the transmission
Node informs receiving node group.
27. device according to claim 23, it is characterised in that the NACK of HARQ feedback
Information is characterized by signal.
28. device according to claim 27, it is characterised in that the signal include it is following at least it
One：Pulse, modulation symbol.
29. the device according to claim 22 or 23, it is characterised in that
The receiving node safeguards receiving node and hair with the sending node by cycle or event form
Send the uplink transmission time between node synchronous.
30. device according to claim 28, it is characterised in that the feedback module, at certain
In the case that individual receiving node enters uplink loss state with the sending node, the upload control is not used
Resource carries out HARQ feedback.
31. device according to claim 30, it is characterised in that also include：
Determining module, obtains receiving nodes all in the receiving node group positioned at the sending node and locates
In user equipment (UE) uplink loss state, it is determined that the receiving node group is group uplink loss state；Obtain
At least one receiving node in the receiving node group is taken to be in UE uplink sync status, it is determined that described to connect
It is group uplink sync status to receive node group.
32. the device according to any one of claim 29 to 31, it is characterised in that also include：
Distribute module, in the sending node, for determining that the receiving node group is in the up mistake of group
In the case of step state, the upload control resource is not matched somebody with somebody to the receiving node component, or discharge
The upload control resource of distribution；It is additionally operable to determine that the receiving node group is in group uplink sync status
In the case of, match somebody with somebody the upload control resource to the receiving node component.
33. device according to claim 23, it is characterised in that the feedback module is used to carry out together
Step or asynchronous HARQ feedback, wherein, the synchronous HARQ feedback representation HARQ feedback time with
The corresponding HARQ transmission time is fixed；The asynchronous HARQ represent the HARQ feedback time with it is right
The HARQ transmission time answered is unfixed, and the identification information of packet is carried during HARQ feedback.
34. device according to claim 23, 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.
35. the device according to any one of claim 22 to 34, it is characterised in that the up control
Resource processed includes：For the resource used under cell uplink synchronous condition.
36. device according to claim 35, it is characterised in that the upload control resource includes：
PUCCH channels and/or PUSCH channels.
37. device according to claim 35, it is characterised in that for the upload control resource,
Divided based on the identification information of point-to-multipoint transmission services.
38. device according to claim 35, it is characterised in that in point-to-multipoint service using described
In the case that upload control resource carries out HARQ feedback, the upload control resource is by described point-to-multipoint
The identification information of business is determined.
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|---|---|---|---|
| CN201610176821.XA CN107231219A (en) | 2016-03-25 | 2016-03-25 | Method for transmission processing and device |
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| CN201610176821.XA CN107231219A (en) | 2016-03-25 | 2016-03-25 | Method for transmission processing and device |
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Cited By (1)
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| WO2021142738A1 (en) * | 2020-01-16 | 2021-07-22 | Oppo广东移动通信有限公司 | Information feedback method and related device |
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