CN107360555A - Method for message transmission and device - Google Patents
Method for message transmission and device Download PDFInfo
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- CN107360555A CN107360555A CN201610306123.7A CN201610306123A CN107360555A CN 107360555 A CN107360555 A CN 107360555A CN 201610306123 A CN201610306123 A CN 201610306123A CN 107360555 A CN107360555 A CN 107360555A
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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
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
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- 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
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
- H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of method for message transmission and device, methods described includes：When it is determined that meeting preparatory condition, cutting processing is carried out to the message packet of transmission, obtains multiple transmitting messages；Multiple transmitting messages are transmitted using multiple transmission subframes, the message-length for needing to carry in single transmission subframe can be reduced, so that lower MCS is changed into feasible, so as to lifting system performance.
Description
Technical field
The present embodiments relate to communication technical field, more particularly to a kind of method for message transmission and device.
Background technology
3GPP V2X technologies are the key technologies of following intelligent transport system.It causes car and car, car
It can be communicated between base station, base station and base station.So as to obtain real-time road, road information, pedestrian information
Etc. a series of transport information, so as to improve drive safety, reduce congestion, raising traffic efficiency, offer car
Carry entertainment information etc..
The scenario parameters amplitude of variation that V2X technologies needs are supported is larger, and wherein vehicle relative velocity highest needs
Support 500km/h.Under the relative velocity, current 4 general vertical character type demodulated signals are used
Parameter (DeModulation Reference Signal, DMRS), will cause higher all kinds of service messages
Packet Error Ratio, can not meet system requirements design, it is therefore desirable to additionally introduce reduction modulation and coded system
(Modulation and Coding Scheme, MCS), increase transmission resource block (Resource Block,
RB), the enhanced scheme such as increase transmission sub-frame transmission subframe.
For different types of V2X service messages, the applicable scope of enhanced scheme be it is limited, for
The larger service message of part messages length, such as 800byte event-triggered message message, will transmit RB
It is set to full bandwidth and can not still meets systematic function need using the minimum MCS allowed under the frequency domain resource quantity
Ask, it is therefore desirable to more transmission sub-frame transmission schemes adaptive under high translational speed are designed for long message packet,
But it there is no such scheme in existing V2X systems.
The content of the invention
The present invention provides a kind of method for message transmission and device, is needed with reducing in single transmission sub-frame transmission subframe
The message-length to be carried, so that lower MCS is changed into feasible, so as to lifting system performance.
In a first aspect, the embodiments of the invention provide a kind of method for message transmission, including：
When it is determined that meeting preparatory condition, cutting processing is carried out to the message packet of transmission, obtains multiple transmission
Message；
Multiple transmitting messages are transmitted using multiple transmission subframes.
Second aspect, the embodiment of the present invention additionally provide a kind of massage transmission device, including：
Burst processing module, for when it is determined that meeting preparatory condition, cutting to be carried out to the message packet of transmission
Processing, obtains multiple transmitting messages；
More sub-frame transmission modules, for being transmitted using multiple transmission subframes to multiple transmitting messages.
The embodiment of the present invention to the message packet of transmission by carrying out cutting processing, then using multiple transmission
Frame is transmitted to multiple transmitting messages, can reduce the message-length for needing to carry in single transmission subframe,
So that lower MCS is changed into feasible, so as to lifting system performance.
Brief description of the drawings
Fig. 1 is a kind of flow chart of method for message transmission in the embodiment of the present invention one；
Fig. 2 is a kind of flow chart of method for message transmission in the embodiment of the present invention two；
Fig. 3 is a kind of flow chart of method for message transmission in the embodiment of the present invention three；
Fig. 4 is a kind of flow chart of method for message transmission in the embodiment of the present invention four；
Fig. 5 is a kind of structure chart of massage transmission device in the embodiment of the present invention five.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this
The specific embodiment of place description is used only for explaining the present invention, rather than limitation of the invention.Also need in addition
It is noted that for the ease of description, part related to the present invention illustrate only in accompanying drawing and not all knot
Structure.
Embodiment one
Fig. 1 is a kind of flow chart for method for message transmission that the embodiment of the present invention one provides, and the present embodiment can fit
Enter the situation of row data communication, this method for vehicle and base station, vehicle and vehicle, vehicle and user equipment
It can be performed by massage transmission device provided in an embodiment of the present invention, the device can use software or hardware
Mode realizes that the device can be integrated in sending node, and the sending node is specifically as follows but is not limited to car
, base station and user equipment.As shown in figure 1, specifically include：
S101, when it is determined that meeting preparatory condition, cutting processing is carried out to the message packet of transmission, obtained more
Individual transmitting message.
Wherein, the preparatory condition includes but is not limited to following at least one：Node speed threshold value, default section
Put scene type, pre-set business type, pre-set business demand, default resource pool busy extent threshold value and preset
Interference strength threshold value.
Specifically, when preparatory condition is node speed threshold value, if sending node determines that present speed exceedes section
Spot speed threshold value, then cutting processing is carried out to the message packet of transmission.When preparatory condition is default node scene
During type, if sending node determines that current scene is default node scene type, to the message packet of transmission
Carry out cutting processing.When preparatory condition is pre-set business type, if sending node determines that current business is pre-
If during type of service, then cutting processing is carried out to the message packet of transmission.When preparatory condition needs for pre-set business
When asking, if sending node determines current business demand when being pre-set business demand, to the message packet of transmission
Carry out cutting processing.When preparatory condition is default resource pool busy extent threshold value, if sending node determines to work as
When preceding resource pool busy extent exceedes default resource pool busy extent threshold value, then the message packet of transmission is carried out
Cutting is handled.When preparatory condition is default interference strength threshold value, if sending node determines current interference strength
More than default interference strength threshold value, then cutting processing is carried out to the message packet of transmission.
S102, using it is multiple transmission subframes multiple transmitting messages are transmitted.
Specifically, the number of fragments obtained according to cutting determines the sum of the transmission subframe used.Each is passed
Defeated subframe corresponds to the transmission of the transmitting message of a fragment generation.
The present embodiment to the message packet of transmission by carrying out cutting processing, then using multiple transmission subframes pair
Multiple transmitting messages are transmitted, and can reduce the message-length for needing to carry in single transmission subframe, so as to
Lower MCS is set to be changed into feasible, so as to lifting system performance.
On the basis of above-described embodiment, when meeting preparatory condition, the message packet is carried out at cutting
Reason, including：
When the message length of the message packet exceedes preset length, the message packet is carried out at cutting
Reason.
Wherein, the preset length is for adaptive-length or from one or more advance customized regular lengths
The regular length chosen.The adaptive-length can determine according to the preparatory condition.For example, according to
Node speed threshold value, default node scene type, pre-set business type, pre-set business demand, default resource
At least one of pond busy extent threshold value and default interference strength threshold value determine the adaptive-length.
It is right when the message length of the message packet exceedes preset length on the basis of above-described embodiment
Before the message packet carries out cutting processing, in addition to：
The adaptive-length is determined according to the preparatory condition or chooses a regular length, according to Izvestia
Literary length and preset length determine whether to carry out cutting processing to the message packet；
Or the part preparatory condition sent according to base station and the preparatory condition that locally obtains determine it is described adaptive
Answer length or choose a regular length, determined whether according to message packet length and the preset length to institute
State message packet and carry out cutting processing；
Or the preparatory condition sent according to base station determines the adaptive-length or chooses a regular length,
Determined whether to carry out cutting processing to the message packet according to message packet length and preset length；
Or the part preparatory condition locally obtained is uploaded into base station, it is pre- according to the part of upload by base station
If the preparatory condition that condition and base station are locally stored determines the adaptive-length or chooses a regular length,
And according to message packet length, the preset length and whole preparatory conditions, determine whether to disappear to described
Cease message and carry out cutting processing；Receive the result of determination that base station is sent；
Or the adaptive-length is determined according to the preparatory condition or chooses a regular length, by institute
State preset length and upload to base station, as base station according to message packet length, the preset length and whole
Preparatory condition, determine whether to carry out cutting processing to the message packet；Receive the result of determination that base station is sent；
Or receive base station send result of determination, the result of determination include base station judge some or certain
Group or whole sending nodes use certain class message packet more sub-frame transmissions, and/or a piece of news message to use
Transmission number of sub frames；
Or more sub-frame transmissions, and/or a piece of news message are used certain class message packet in locally judgement
The transmission number of sub frames used, base station is reported to by result of determination.It is described right on the basis of above-described embodiment
The message packet carries out burst processing, including：
It is determined that the length and/or number of fragments of the message fragment being each cut into；
Cutting processing is carried out to the message packet according to the fragment length and/or number of fragments.
Specifically, can be determined according at least one of following reference factor each message fragment length and/or
Number of fragments：The cutting length fixed value of configuration, message packet length, adaptive-length, node speed,
Node scene type, type of service, business demand, resource pool busy extent, interference strength, physical layer make
MCS, transmission sub-frame number, message packet content, each frequency domain resource quantity transmitted in subframe.
After burst length is determined, then the message packet is divided according to the burst length of determination.Or
Person, after burst quantity is determined, the message packet is divided according to the burst quantity of determination,
For example, average segmentation is carried out to message packet according to burst quantity.
On the basis of above-described embodiment, cutting processing is being carried out to the message packet, following three can be used
Kind mode：
First way, cutting is carried out to the message packet and forms message fragment；
Accordingly, multiple transmitting messages are transmitted using multiple transmission subframes, including：
Each message fragment is with the Form generation transmitting message of message fragment, by a transmission subframe individual transmission,
Valid data can not be obtained in the message fragment of subsequent decoding independence, the Izvestia is being successfully decoded
Whole valid data of the message packet can be obtained after all bursts of text.
Specifically when realizing, sending node high level carries out cutting to message packet, fragment after each cutting with
The Form generation transmitting message of message fragment, by individual transmission, the independence to some message fragment can not be passed through
Decoding obtains the information carried in the burst, it is necessary to collect whole bursts of neat message packet, and to whole
Burst is decoded with being merged, and could obtain the information carried in the message packet.For example, sending node
High level is carried out to packaged message packet by the way of similar RLC bursts to the message packet
Cutting, what is obtained is several message fragments of high-rise message, i.e., the information in each burst be it is incomplete,
Can not independently it be used.
Such a sliced fashion, when handling message fragment, it is necessary to all message fragment combinations for decoding and obtaining
Into a message, CRC check is carried out, just thinks that message is properly received by CRC check.
It is described that message packet progress cutting processing is specifically included on the basis of above-described embodiment：
Enter by the way of node is high-rise or application layer combines burst to the message fragment using similar rlc layer
Row merges.
The second way, to the raw information included in the message packet, or for generating the Izvestia
The raw information of text carries out cutting, and an independent message packet is generated based on each cutting fragment；
Accordingly, multiple transmission subframes are transmitted using multiple transmission subframes, including：
Each message fragment is independent by a transmission subframe with the Form generation transmitting message of independent message message
Transmission, each message fragment can be independently decoded in subsequent decoding, and independently decode a message fragment
The all or part of effective information content carried in the message fragment is can obtain afterwards, and described disappear is being successfully decoded
Whole valid data of the message packet can be obtained after all fragments of breath message.
Specifically when realizing, sending node high level carries out cutting to message packet, fragment after each cutting with
The Form generation transmitting message of independent message message, can be by some message fragment by individual transmission
Independent decoding obtains the information carried in the fragment.Specifically, based on the content that is included in origination message and
/ or the message packet length and/or pre-configured slit mode, to the original included in the message packet
Beginning information, or the raw information for generating the message packet carry out cutting.For example, carried out according to content
Cutting, it is node geo-location information in first fragment after cutting；It is node speed in second fragment
And direction；It is node acceleration in 3rd fragment.The sub- message packet of any one fragment generation is received,
CRC check can be independently done, being considered as sub- message packet by CRC check is properly received.And
And due to being a complete segment information for functional perspective in a fragment, can to a complete fragment
Utilized.Cutting is carried out according to message packet length and pre-configured fixation slit mode, all nodes are cut
When dividing a kind of message for the type of message that length is 800byte, first piece segment length 300byte (300byte
Geographical location information), second piece segment length 250byte (100byte geographical location information+150byte node
Speed), the 3rd piece segment length 250byte (100byte node direction+150byte node accelerations).If
The original intention for counting this method be from functional perspective may some form informations be placed on one transmission subframe in when still
It is so long.In this case, the sub- message packet of any one fragment generation is received, can be independent
CRC check is done, being considered as sub- message packet by CRC check is properly received.And due to one
Information in fragment is the combination of a part for complete function information and some function informations, and the former can be with
Directly use, it is that the latter is at least known for corresponding raw information for which part, and having after multiple fragment combinations can
Available complete function information can be obtained.Can be intactly (for example, receiving to a fragment in this example
The sub- message packet generated to fragment 3 can be used directly) or partly (given birth to for example, only receiving fragment 2
Into sub- message packet, preceding 100byte can not be used, and rear 150byte can be used) utilized.
It is described that message packet progress cutting processing is specifically included on the basis of above-described embodiment：
The initial data carried in node high level or application layer are to the independent message packet fragment is carried out
Merge.
The third mode, RLC bursts and burst are carried out to the message packet in rlc layer and MAC layer
Merge and MAC group bags unpack mechanism handle.
On the basis of above-described embodiment, multiple transmitting messages are transmitted into one using multiple transmission subframes
Step includes：
It is that each transmitting message dispatches corresponding resource according to resource information corresponding to the message packet, it is described
Resource information includes at least one of following：It is the cutting length fixed value of configuration, message packet length, adaptive
It is length, node speed, node scene type, type of service, business demand, resource pool busy extent, dry
Disturb intensity, the modulation that physical layer uses and coded system MCS, transmission sub-frame number, each transmit subframe
On frequency domain resource quantity and each transmitting message number of retransmissions；
Multiple transmitting messages are transmitted using multiple transmission subframes according to the resource of scheduling.
Specifically, it is that the scheduling of each transmitting message is corresponding in the resource information according to corresponding to the message packet
Resource can carry out scheduling of resource using following five kinds of modes：
First way, the head in each transmitting message is passed according to resource information corresponding to the message packet
Subframe and the combined dispatching for retransmitting subframe progress resource.
For example, for transmitting message A, the first subframe that passes corresponding to it is A1, and corresponding re-transmission subframe is A2,
Then in scheduling resource, while the A1 and A2 resources used are disposably dispatched.
The second way, the head in each transmitting message is passed according to resource information corresponding to the message packet
Subframe and the independent scheduling for retransmitting subframe progress resource.
For example, for transmitting message A, the first subframe that passes corresponding to it is A1, and corresponding re-transmission subframe is A2,
Then in scheduling resource, the independent of resource is carried out to A1 first and is dispatched, the only of resource then is carried out to A2
Vertical scheduling.
The third mode, son is passed to the first of each transmitting message according to resource information corresponding to the message packet
Frame carries out the independent scheduling of resource；
Fixed mapping relations be present in the re-transmission subframe of each transmitting message and the first resource location passed between subframe,
The re-transmission subframe of each transmitting message is determined according to the mapping relations and the first resource location for passing subframe
The resource used.
For example, for transmitting message A, the first subframe that passes corresponding to it is A1, and corresponding re-transmission subframe is A2,
Then in scheduling resource, the independent of resource is carried out to A1 first and is dispatched, then obtains A2 according to mapping relations
The resource location used.
4th kind of mode, all biographies according to resource information corresponding to the message packet to the message packet
All first combined dispatchings for passing subframe and retransmitting subframe progress resource of defeated message.
For example, all transmitting messages of the message packet include A and B, for transmitting message A, its is right
The first subframe that passes answered is A1, and corresponding re-transmission subframe is A2, is passed for transmitting message B, head corresponding to it
Subframe is B1, and corresponding re-transmission subframe is B2, then in scheduling of resource, while to A1, A2, B1
Disposably dispatched with the B2 resources used.
Fifth procedure, all biographies according to resource information corresponding to the message packet to the message packet
All first combined dispatchings for passing subframe and carrying out resource of defeated message；
Fixed mapping relations be present in the re-transmission subframe of each transmitting message and the first resource location passed between subframe,
The resource that the re-transmission subframe of each transmitting message uses is determined according to the mapping relations.
For example, all transmitting messages of the message packet include A and B, for transmitting message A, its is right
The first subframe that passes answered is A1, and corresponding re-transmission subframe is A2, is passed for transmitting message B, head corresponding to it
Subframe is B1, and corresponding re-transmission subframe is B2, then in scheduling of resource, A1 and B1 is distinguished first
The independent scheduling of resource is carried out, then obtains the resource location of B1 and B2 pairs according to mapping relations.
Wherein, in above-mentioned five kinds of scheduling modes, the resource of scheduling includes time-domain resource and/or frequency domain resource.
Use time-domain resource and/or frequency domain resource corresponding to any one scheduling mode schedulable therein.
Above-described embodiment to the message packet of transmission by carrying out cutting processing, then using multiple transmission subframes
Multiple transmitting messages are transmitted, the message-length for needing to carry in single transmission subframe can be reduced, from
And lower MCS is changed into feasible, so as to lifting system performance.
Embodiment two
Fig. 2 is a kind of flow chart for method for message transmission that the embodiment of the present invention two provides, and the present embodiment is upper
On the basis of stating embodiment, cutting processing will be carried out to the message packet when meeting preparatory condition, it is excellent
Turn to when the message length of the message packet exceedes preset length, the message packet is carried out at cutting
Reason.As shown in Fig. 2 specifically include：
S201, when the message length of the message packet exceedes preset length, to the message packet carry out
Cutting is handled, and obtains multiple transmitting messages.
Wherein, the preset length is adaptive-length or advance customized regular length.It is described adaptive
Length can be determined according to following at least one preparatory condition：Node speed threshold value, default node scene class
Type, pre-set business type, pre-set business demand, default resource pool busy extent threshold value and default interference strength
Threshold value.
It can be carried out by the following method specifically, whether the message length of the message packet exceedes preset length
Judge：Sending node high level and/or MAC layer and/or rlc layer and/or physical layer, are obtained according to preparatory condition
Adaptive-length is taken, determines whether to carry out the message packet according to message packet length and adaptive-length
Burst processing；Or part preparatory condition is sent to sending node, or, base station according to default bar by base station
Part obtains adaptive-length and is sent to sending node, by sending node according to message packet length and adaptively
Length determines whether to carry out burst processing to the message packet；Or sending node is by part preparatory condition
Base station is uploaded to, or, sending node obtains adaptive-length according to preparatory condition and uploads to base station, by base
Station determines whether, to message packet progress burst processing, result then to be informed into sending node, by sending
Node carries out burst processing to the message packet；Or base station judges some or certain group or all sends section
Point needs to carry out certain class message packet burst processing, and/or the transmission number of sub frames that a piece of news message uses
Amount, sending node is allocated to by result of determination, and burst processing is carried out to the message packet by sending node；
Or sending node locally judges to need to carry out certain class message packet burst processing, and/or a piece of news
The transmission number of sub frames that message uses, then burst processing is carried out to the message packet, and result of determination is reported
To base station.
S202, using it is multiple transmission subframes multiple transmitting messages are transmitted.
Detailed description on this step refers to above-described embodiment, repeats no more here.
The present embodiment to the message packet of transmission by carrying out cutting processing, then using multiple transmission subframes pair
Multiple transmitting messages are transmitted, and can reduce the message-length for needing to carry in single transmission subframe, so as to
Lower MCS is set to be changed into feasible, so as to lifting system performance.
Embodiment three
Fig. 3 is a kind of flow chart for method for message transmission that the embodiment of the present invention three provides, and the present embodiment is upper
On the basis of stating embodiment, multiple transmission subframes will be used to be transmitted multiple transmitting messages, be optimized for root
It is each transmission corresponding resource of subframe scheduling according to resource information corresponding to the message packet, the resource is believed
Breath includes at least one of following：The cutting length fixed value of configuration, message packet length, adaptive-length,
Node speed, node scene type, type of service, business demand, resource pool busy extent, interference strength,
The modulation and coded system MCS, transmission sub-frame number, each frequency domain transmitted in subframe that physical layer uses
The number of retransmissions of resource quantity and each transmitting message, and multiple transmission subframes are used according to the resource of scheduling
Multiple transmitting messages are transmitted.As shown in figure 3, specifically include：.
S301, when it is determined that meeting preparatory condition, cutting processing is carried out to the message packet of transmission, obtained more
Individual transmitting message.
S302, the resource information according to corresponding to the message packet are each transmission corresponding resource of subframe scheduling,
The resource information includes at least one of following：The cutting length fixed value of configuration, message packet length, from
Adapt to length, node speed, node scene type, type of service, business demand, resource pool busy extent,
The modulation and coded system MCS, transmission sub-frame number, each transmission that interference strength, physical layer use
The number of retransmissions of frequency domain resource quantity and each transmitting message on frame.
S303, according to the resource of scheduling using it is multiple transmission subframes multiple transmitting messages are transmitted.
Specifically, first subframe and the re-transmission subframe of passing of any transmitting message is independently scheduled.
Or it is multiplexed existing T-RPT mechanism and subframe and all re-transmission is passed to the first of any transmitting message
Domain scheduling when frame is carried out；Frequency domain dispatching uses the Frequency resource pattern machine similar with T-RPT
System.Or the first subframe that passes of any transmitting message is independently scheduled, the transmitting message
Retransmit subframe and the first time domain passed between subframe and/or frequency domain position has fixed mapping relations；When time domain and
During the mapping relations of only one presence fixation of frequency domain, independent scheduling or similar is carried out to an other side
The scheduling of T-RPT mechanism.Or it is multiplexed existing T-RPT mechanism and son is passed to the first of all transmitting messages
Domain scheduling when frame and all progress of re-transmission subframe；Frequency domain dispatching uses the Frequency similar with T-RPT
Resource pattern mechanism；Or combined dispatching is carried out to the first subframe that passes of all transmitting messages, arbitrarily
Retransmit subframe and fixed mapping relations be present with the corresponding first time domain passed between subframe and/or frequency domain position；When
During the mapping relations of only one presence fixation of time domain and frequency domain, independent scheduling or class are carried out to an other side
Like the scheduling of T-RPT mechanism.
Example IV
The present embodiment needs to send a length as 800byte by taking V2X systems as an example, using some sending node
Event-triggered message the embodiment of the present invention is described in detail for scene.As shown in figure 4, mainly include
Following steps：
S401, sending node obtain the corresponding adaptive long of the more sub-frame transmissions of message packet according to preparatory condition
Degree.
For example, the current drive speed of sending node acquisition is 250km/h, type of service is event-triggered message；
It is highway that base station, which is allocated to node current scene type,.Sending node judges certainly according to above-mentioned preparatory condition
Adaptation length is 300byte.
S402, sending node determine that message-length exceedes adaptive-length, and sending node judges to use transmit more
Subframe is transmitted, and result of determination is reported into base station.
S403, base station judge that transmission number of sub frames of the sending node under transmission sub-frame transmission pattern more is 4,
And result of determination is allocated to node.
S404, sending node carry out cutting to message packet, and the fragment after each cutting is with independent message message
Form by individual transmission.
Specifically, sending node determines that cutting segments is 4, and son is transmitted according to the result of determination of base station
Frame number determines that length is every section of 200byte.Each quilt in the form of independent message message of the fragment after cutting
Individual transmission, in decoding end can obtain the fragment by the independent decoding to some independent message message
The information of carrying.
S405, sending node voluntarily carry out the scheduling of resource of local transmission, and message packet is split as 4 solely
Vertical message packet, it is necessary to transmission sub-frame number be 4, the frequency domain resource quantity in each subframe is 40RBs,
The number of retransmissions of each subframe is 1 time, correspondingly carries out scheduling of resource.
The time domain that S406, sending node are used the first biography subframe for amounting to the independent message message of 4 transmission provides
Source carries out combined dispatching, uses T-RPT modes.
The frequency domain resource that S407, sending node are used the first biography subframe of each transmitting message is independently adjusted
Degree.
Specifically, the re-transmission subframe of each transmitting message, by the way of TTI Bundling, each transmission is reported
Text shares 1 re-transmission subframe, and first subsequent subframe of subframe is passed positioned at first；The re-transmission of each transmitting message
Subframe use passes subframe identical frequency domain position with head.
After S408, sending node determine scheduling of resource result, it is transmitted in corresponding resource location, each
Transmit and the fragment after a cutting is sent in subframe.
Embodiment five
Fig. 5 show a kind of structural representation of massage transmission device of the offer of the embodiment of the present invention five, the dress
Putting can be realized by the way of software or hardware, and the device is integrated in sending node, as shown in figure 5, should
The concrete structure of device is as follows：Burst processing module 51 and more sub-frame transmission modules 52.
The burst processing module 51 is used for when it is determined that meeting preparatory condition, and the message packet of transmission is entered
Row cutting is handled, and obtains multiple transmitting messages；
More sub-frame transmission modules 52 are used to be transmitted multiple transmitting messages using multiple transmission subframes.
Massage transmission device described in the present embodiment is used to perform the message transmission side described in the various embodiments described above
Method, its technical principle is similar with caused technique effect, repeats no more here.
On the basis of above-described embodiment, the burst processing module 51 includes：Burst determining unit 511
With burst processing unit 512.
The burst determining unit 511 is used for the length and/or number of fragments for determining each message fragment；
The burst processing unit 512 is used for according to the fragment length and/or number of fragments to the message
Message carries out cutting processing.
On the basis of above-described embodiment, the burst determining unit 512 is specifically used for, according to it is following at least
One reference factor determines the length and/or number of fragments of each message fragment：The cutting length of configuration is fixed
Value, message packet length, adaptive-length, node speed, node scene type, type of service, business
The modulation and coded system MCS, biography that demand, resource pool busy extent, interference strength, physical layer use
Defeated sub-frame number, message packet content, each frequency domain resource quantity transmitted in subframe.
On the basis of above-described embodiment, the burst processing module 51 is specifically used for, to the Izvestia
Text carries out cutting and forms message fragment；
More sub-frame transmission modules 52 are specifically used for, and each message fragment is with the Form generation of message fragment
Transmitting message, by a transmission subframe individual transmission, can not be had in the message fragment of subsequent decoding independence
Data are imitated, whole valid data of the message packet can be obtained by decoding whole bursts of the message packet.
On the basis of above-described embodiment, the burst processing module 51 is specifically used for, to the Izvestia
The raw information included in text, or the raw information for generating the message packet carry out cutting, based on every
Individual cutting fragment generates an independent message packet；
More sub-frame transmission modules 52 are specifically used for, and each message fragment is in the form of independent message message
Transmitting message is generated, by a transmission subframe individual transmission, each report can be independently decoded in subsequent decoding
Literary fragment, and can obtain all or part carried in message fragment after independently decoding a message fragment and have
The information content is imitated, the message packet can be obtained after all fragments of the message packet are successfully decoded
Whole valid data.
On the basis of above-described embodiment, the burst processing module 51 is specifically used for, based on origination message
In length and/or the pre-configured fixation slit mode of the content that includes and/or the message packet, to described
The raw information included in message packet, or the raw information for generating the message packet carry out cutting.
On the basis of above-described embodiment, more sub-frame transmission modules 52 are specifically used for, in rlc layer and
Mechanism processing that MAC layer merges to message packet progress RLC bursts with burst and MAC group bags are unpacked.
On the basis of above-described embodiment, more sub-frame transmission modules 52 are specifically used for, high-rise in node
Or application layer merges to the message fragment.
On the basis of above-described embodiment, more sub-frame transmission modules 52 are specifically used for, high-rise in node
Or application layer merges to the initial data carried in the independent message packet fragment.
On the basis of above-described embodiment, more sub-frame transmission modules 52 include：Scheduling of resource unit 521
With more sub-frame transmission units 522.
It is each transmission that the scheduling of resource unit 511, which is used for the resource information according to corresponding to the message packet,
The corresponding resource of subframe scheduling, the resource information include at least one of following：The cutting length of configuration is fixed
Value, message packet length, adaptive-length, node speed, node scene type, type of service, business
The modulation and coded system MCS, biography that demand, resource pool busy extent, interference strength, physical layer use
Defeated sub-frame number, the frequency domain resource quantity in each transmission subframe, the number of retransmissions of each transmitting message；
More sub-frame transmission units 512 are used for according to the resource of scheduling using multiple transmission subframes to multiple biographies
Defeated message is transmitted.
On the basis of above-described embodiment, the scheduling of resource unit 511 is specifically used for, according to the message
Resource information corresponding to message is to the first connection for passing subframe and retransmitting subframe progress resource in each transmitting message
Close scheduling.
On the basis of above-described embodiment, the scheduling of resource unit 511 is specifically used for, according to the message
Resource information corresponding to message carries out the only of resource to first subframe and the re-transmission subframe of passing in each transmitting message
Vertical scheduling.
On the basis of above-described embodiment, the scheduling of resource unit 511 is specifically used for, according to the message
The first independent scheduling that passes subframe carry out resource of the resource information corresponding to message to each transmitting message；It is each to pass
Be present fixed mapping relations in the re-transmission subframe of defeated message and the first resource location passed between subframe, reflected according to described
Penetrate relation and the first resource location for passing subframe determine each transmitting message re-transmission subframe resource location.
On the basis of above-described embodiment, the scheduling of resource unit 511 is specifically used for, according to the message
All first biography subframes and re-transmission of the resource information corresponding to message to all transmitting messages of the message packet
Subframe carries out the combined dispatching of resource.
On the basis of above-described embodiment, the scheduling of resource unit 511 is specifically used for, according to the message
Resource information corresponding to message provides to all first subframes that pass of all transmitting messages of the message packet
The combined dispatching in source；The re-transmission subframe of each transmitting message and the first resource location passed between subframe exist fixed
Mapping relations, each transmitting message is obtained according to the mapping relations and the first resource location for passing subframe
Retransmit the resource location of subframe.
On the basis of above-described embodiment, the resource of scheduling includes time-domain resource and/or frequency domain resource.
On the basis of above-described embodiment, the preparatory condition includes following at least one：Node speed threshold value,
Default node scene type, pre-set business type, pre-set business demand, default resource pool busy extent threshold value
With default interference strength threshold value.
On the basis of above-described embodiment, the burst processing module 51 is specifically used for, when the Izvestia
When the message length of text exceedes preset length, cutting processing is carried out to the message packet.
On the basis of above-described embodiment, the preset length be adaptive-length or from advance customized one
The regular length chosen into multiple regular lengths.
On the basis of above-described embodiment, described device also includes：Adaptive-length determining module 53.
The adaptive-length determining module 53 is used for when the message length of the message packet exceedes default length
When spending, before carrying out cutting processing to the message packet, determined according to the preparatory condition described adaptive
Length chooses a regular length, is determined whether according to message packet length and adaptive preset length to institute
State message packet and carry out cutting processing；Or the advance preparatory condition in part sent according to base station and local are obtained
The default first condition taken determines the adaptive-length or chooses a regular length, according to message packet length
Determine whether to carry out cutting processing to the message packet with the adaptive preset length；Or according to base
The default first condition sent of standing determines the adaptive-length or chooses a regular length, according to message packet
Length and adaptive preset length determine whether to carry out cutting processing to the message packet；Or will be local
The part preparatory condition of acquisition uploads to base station, by base station according to the part preparatory condition of upload and base station
The preparatory condition of storage determines one regular length of the adaptive-length or selection, and according to determination Izvestia
Literary length, the preset length and whole preparatory conditions, determine whether to cut the message packet
Whether office reason exceedes the adaptive-length；Receive the result of determination that base station is sent；Or according to described
Preparatory condition determines the adaptive-length or chooses a regular length, by the adaptive preset length
Base station is passed to, is determined by base station according to message packet length, the preset length and whole preparatory conditions,
Determine whether to carry out the message packet whether cutting processing exceedes the adaptive-length；Receive base station hair
The result of determination sent；Or the result of determination that base station is sent is received, the result of determination is sentenced comprising base station
Some fixed or certain group or whole sending nodes use certain class message packet more sub-frame transmissions, and/or one
The transmission number of sub frames that message packet uses；Or certain class message packet is passed using more subframes in locally judgement
It is defeated, and/or the transmission number of sub frames that a piece of news message uses, result of determination is reported into base station.
The message that massage transmission device described in the various embodiments described above is used to perform described in the various embodiments described above passes
Transmission method, its technical principle is similar with caused technique effect, repeats no more here.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.Those skilled in the art
It will be appreciated that the invention is not restricted to specific embodiment described here, can enter for a person skilled in the art
Row is various significantly to be changed, readjust and substitutes without departing from protection scope of the present invention.Therefore, though
So the present invention is described in further detail by above example, but the present invention be not limited only to
Upper embodiment, without departing from the inventive concept, other more equivalent embodiments can also be included,
And the scope of the present invention is determined by scope of the appended claims.
Claims (40)
- A kind of 1. method for message transmission, it is characterised in that including：When it is determined that meeting preparatory condition, cutting processing is carried out to the message packet of transmission, obtains multiple transmission Message；Multiple transmitting messages are transmitted using multiple transmission subframes.
- 2. according to the method for claim 1, it is characterised in that described that the message packet is carried out Cutting is handled, including：It is determined that the length and/or number of fragments of the message fragment being each cut into；Cutting processing is carried out to the message packet according to the fragment length and/or number of fragments.
- 3. according to the method for claim 2, it is characterised in that it is determined that the length of each message fragment And/or number of fragments, including：The length and/or number of fragments of each message fragment are determined according at least one of following reference factor：Match somebody with somebody The cutting length fixed value put, message packet length, adaptive-length, node speed, node scene type, The modulation and coding that type of service, business demand, resource pool busy extent, interference strength, physical layer use Mode MCS, transmission sub-frame number, message packet content, each frequency domain resource quantity transmitted in subframe.
- 4. according to the method for claim 1, it is characterised in that described that the message packet is carried out Cutting is handled, including：Cutting is carried out to the message packet and forms message fragment；It is described that multiple transmitting messages are transmitted using multiple transmission subframes, including：Each message fragment is with the Form generation transmitting message of message fragment, by a transmission subframe individual transmission, Valid data can not be obtained in the message fragment of subsequent decoding independence, the Izvestia is being successfully decoded Whole valid data of the message packet can be obtained after all bursts of text.
- 5. according to the method for claim 1, it is characterised in that described that the message packet is carried out Cutting is handled, including：To the raw information included in the message packet, or for generating the raw information of the message packet Cutting is carried out, an independent message packet is generated based on each cutting fragment；It is described that multiple transmitting messages are transmitted using multiple transmission subframes, including：Each message fragment is independent by a transmission subframe with the Form generation transmitting message of independent message message Transmission, each message fragment can be independently decoded in subsequent decoding, and independently decode a message fragment The all or part of effective information content carried in the message fragment is can obtain afterwards, and described disappear is being successfully decoded Whole valid data of the message packet can be obtained after all fragments of breath message.
- 6. according to the method for claim 5, it is characterised in that to what is included in the message packet Raw information, or cutting is carried out for generating the raw information of the message packet, including：Based on the content included in origination message and/or the length of the message packet and/or pre-configured cutting Mode, to the raw information included in the message packet, or for generating the original letter of the message packet Breath carries out cutting.
- 7. according to the method for claim 1, it is characterised in that described that the message packet is carried out Cutting is handled, including：In rlc layer and message packet progress RLC bursts are merged MAC layer with burst and MAC Group bag unpack mechanism processing.
- 8. according to the method for claim 4, it is characterised in that the receiving node of the message packet Cutting processing is carried out to the message packet, including：The message fragment is merged in node high level or application layer.
- 9. according to the method for claim 5, it is characterised in that the receiving node of the message packet Cutting processing is carried out to the message packet, including：The initial data carried in node high level or application layer are to the independent message packet fragment is carried out Merge.
- 10. according to the method for claim 1, it is characterised in that described using multiple transmission subframes pair Multiple transmitting messages are transmitted, including：It is that each transmitting message dispatches corresponding resource according to resource information corresponding to the message packet, it is described Resource information includes at least one of following：It is the cutting length fixed value of configuration, message packet length, adaptive It is length, node speed, node scene type, type of service, business demand, resource pool busy extent, dry Disturb intensity, the modulation that physical layer uses and coded system MCS, transmission sub-frame number, each transmit subframe On frequency domain resource quantity, the number of retransmissions of each transmitting message；Multiple transmitting messages are transmitted using multiple transmission subframes according to the resource of scheduling.
- 11. according to the method for claim 10, it is characterised in that corresponding according to the message packet Resource information dispatch corresponding resource for each transmitting message, including：Subframe and re-transmission are passed to the first of each transmitting message according to resource information corresponding to the message packet Frame carries out the combined dispatching of resource.
- 12. according to the method for claim 10, it is characterised in that corresponding according to the message packet Resource information dispatch corresponding resource for each transmitting message, including：Subframe and each weight are passed to the first of each transmitting message according to resource information corresponding to the message packet Pass the independent scheduling that subframe carries out resource.
- 13. according to the method for claim 10, it is characterised in that corresponding according to the message packet Resource information dispatch corresponding resource for each transmitting message, including：Resource is carried out to the first subframe that passes of each transmitting message according to resource information corresponding to the message packet Independent scheduling；Fixed mapping relations be present in the re-transmission subframe of each transmitting message and the first resource location passed between subframe, The re-transmission subframe of each transmitting message is determined according to the mapping relations and the first resource location for passing subframe The resource used.
- 14. according to the method for claim 10, it is characterised in that corresponding according to the message packet Resource information dispatch corresponding resource for each transmitting message, including：Institute according to resource information corresponding to the message packet to all transmitting messages of the message packet There is the first combined dispatching for passing subframe and retransmitting subframe progress resource.
- 15. according to the method for claim 10, it is characterised in that corresponding according to the message packet Resource information dispatch corresponding resource for each transmitting message, including：Institute according to resource information corresponding to the message packet to all transmitting messages of the message packet There is the first combined dispatching for passing subframe and carrying out resource；Fixed mapping relations be present in the re-transmission subframe of each transmitting message and the first resource location passed between subframe, The resource that the re-transmission subframe of each transmitting message uses is determined according to the mapping relations.
- 16. according to the method described in any one of claim 10~15, it is characterised in that the resource bag of scheduling Include time-domain resource and/or frequency domain resource.
- 17. according to the method described in any one of claim 1~15, it is characterised in that the preparatory condition Including following at least one：Node speed threshold value, preset node scene type, pre-set business type, preset Business demand, default resource pool busy extent threshold value, default interference strength threshold value.
- 18. according to the method for claim 17, it is characterised in that right when meeting preparatory condition The message packet carries out cutting processing, including：When the message length of the message packet exceedes preset length, the message packet is carried out at cutting Reason.
- 19. according to the method for claim 18, it is characterised in that the preset length is adaptive Length or the regular length chosen from one or more advance customized regular lengths.
- 20. according to the method for claim 19, it is characterised in that when the message of the message packet When length exceedes preset length, before carrying out cutting processing to the message packet, in addition to：The adaptive-length is determined according to the preparatory condition or chooses a regular length, according to Izvestia Literary length and preset length determine whether to carry out cutting processing to the message packet；Or the part preparatory condition sent according to base station and the preparatory condition that locally obtains determine it is described adaptive Answer length or choose a regular length, determined whether according to message packet length and the preset length to institute State message packet and carry out cutting processing；Or the preparatory condition sent according to base station determines the adaptive-length or chooses a regular length, Determined whether to carry out cutting processing to the message packet according to message packet length and preset length；Or the part preparatory condition locally obtained is uploaded into base station, it is pre- according to the part of upload by base station If the preparatory condition that condition and base station are locally stored determines the adaptive-length or chooses a regular length, And according to message packet length, the preset length and whole preparatory conditions, determine whether to disappear to described Cease message and carry out cutting processing；Receive the result of determination that base station is sent；Or the adaptive-length is determined according to the preparatory condition or chooses a regular length, by institute State preset length and upload to base station, as base station according to message packet length, the preset length and whole Preparatory condition, determine whether to carry out cutting processing to the message packet；Receive the result of determination that base station is sent；Or receive base station send result of determination, the result of determination include base station judge some or certain Group or whole sending nodes use certain class message packet more sub-frame transmissions, and/or a piece of news message to use Transmission number of sub frames；Or more sub-frame transmissions, and/or a piece of news message are used certain class message packet in locally judgement The transmission number of sub frames used, base station is reported to by result of determination.
- A kind of 21. massage transmission device, it is characterised in that including：Burst processing module, for when it is determined that meeting preparatory condition, cutting to be carried out to the message packet of transmission Processing, obtains multiple transmitting messages；More sub-frame transmission modules, for being transmitted using multiple transmission subframes to multiple transmitting messages.
- 22. device according to claim 21, it is characterised in that the burst processing module includes：Burst determining unit, for determining the length and/or number of fragments of each message fragment；Burst processing unit, for being entered according to the fragment length and/or number of fragments to the message packet Row cutting is handled.
- 23. device according to claim 22, it is characterised in that the burst determining unit is specific For determining the fragment length and/or segments of each message fragment according at least one of following reference factor Amount：The cutting length fixed value of configuration, message packet length, adaptive-length, node speed, node field The tune that scape type, type of service, business demand, resource pool busy extent, interference strength, physical layer use System and coded system MCS, transmission sub-frame number, message packet content, each frequency domain transmitted in subframe Resource quantity.
- 24. device according to claim 21, it is characterised in that the burst processing module is specific For carrying out cutting to the message packet and forming message fragment；More sub-frame transmission modules are specifically used for, and each message fragment is transmitted with the Form generation of message fragment Message, by a transmission subframe individual transmission, the message fragment of subsequent decoding independence can not obtain valid data, Whole bursts of the message packet, which are successfully decoded, can obtain whole valid data of the message packet.
- 25. device according to claim 21, it is characterised in that the burst processing module is specific For to the raw information included in the message packet, or for generating the original letter of the message packet Breath carries out cutting, and an independent message packet is generated based on each cutting fragment；More sub-frame transmission modules are specifically used for, and each message fragment is with the Form generation of independent message message Transmitting message, each message fragment, and the independent decoding one of success can be independently decoded in subsequent decoding The all or part of effective information content carried in message fragment is can obtain after message fragment, being successfully decoded Whole valid data of the message packet can be obtained after all fragments of message packet by stating.
- 26. device according to claim 25, it is characterised in that the burst processing module is specific For,Based on the content included in origination message and/or the length of the message packet and/or pre-configured fixation Slit mode, to the raw information included in the message packet, or for generating the original of the message packet Beginning information carries out cutting.
- 27. device according to claim 21, it is characterised in that the burst processing module is specific For,In rlc layer and message packet progress RLC bursts are merged MAC layer with burst and MAC Group bag unpack mechanism processing.
- 28. device according to claim 24, it is characterised in that the burst processing module is specific For being merged in node high level or application layer to the message fragment.
- 29. device according to claim 25, it is characterised in that the burst processing module is specific For the initial data carried in node high level or application layer are to the independent message packet fragment to be carried out Merge.
- 30. device according to claim 21, it is characterised in that more sub-frame transmission module bags Include：Scheduling of resource unit, adjusted for the resource information according to corresponding to the message packet for each transmission subframe Corresponding resource is spent, the resource information includes at least one of following：The cutting length fixed value of configuration, disappear Cease message length, adaptive-length, node speed, node scene type, type of service, business demand, The modulation and coded system MCS, transmission subframe that resource pool busy extent, interference strength, physical layer use Quantity, the frequency domain resource quantity in each transmission subframe, the number of retransmissions of each transmitting message；More sub-frame transmission units, for using multiple transmission subframes to multiple transmitting messages according to the resource of scheduling It is transmitted.
- 31. device according to claim 30, it is characterised in that the scheduling of resource unit is specific For according to resource information corresponding to the message packet to the first biography subframe in each transmitting message and re-transmission Subframe carries out the combined dispatching of resource.
- 32. device according to claim 30, it is characterised in that the scheduling of resource unit is specific For according to resource information corresponding to the message packet to the first biography subframe in each transmitting message and re-transmission Subframe carries out the independent scheduling of resource.
- 33. device according to claim 30, it is characterised in that the scheduling of resource unit is specific For carrying out resource to the first subframe that passes of each transmitting message according to resource information corresponding to the message packet Independent scheduling；Fixed reflect be present in the re-transmission subframe of each transmitting message and the first resource location passed between subframe Relation is penetrated, the weight of each transmitting message is determined according to the mapping relations and the first resource location for passing subframe Pass the resource location of subframe.
- 34. device according to claim 30, it is characterised in that the scheduling of resource unit is specific For the institute according to resource information corresponding to the message packet to all transmitting messages of the message packet There is the first combined dispatching for passing subframe and retransmitting subframe progress resource.
- 35. device according to claim 30, it is characterised in that the scheduling of resource unit is specific For the institute according to resource information corresponding to the message packet to all transmitting messages of the message packet There is the first combined dispatching for passing subframe and carrying out resource；The re-transmission subframe of each transmitting message and the first money passed between subframe Be present fixed mapping relations in source position, obtained according to the mapping relations and the first resource location for passing subframe Take the resource location of the re-transmission subframe of each transmitting message.
- 36. according to the device described in any one of claim 30~35, it is characterised in that the resource bag of scheduling Include time-domain resource and/or frequency domain resource.
- 37. according to the device described in any one of claim 21~35, it is characterised in that the preparatory condition Including following at least one：Node speed threshold value, preset node scene type, pre-set business type, preset Business demand, default resource pool busy extent threshold value, default interference strength threshold value.
- 38. the device according to claim 37, it is characterised in that the burst processing module is specific For when the message length of the message packet exceedes preset length, cutting to be carried out to the message packet Processing.
- 39. the device according to claim 38, it is characterised in that the preset length is adaptive Length or the regular length chosen from one or more advance customized regular lengths.
- 40. the device according to claim 39, it is characterised in that also include：Adaptive-length determining module, for when the message length of the message packet exceedes preset length, To the message packet carry out cutting processing before, according to the preparatory condition determine the adaptive-length or A regular length is chosen, determines whether to enter the message packet according to message packet length and preset length Row cutting is handled；Or the part preparatory condition sent according to base station and the preparatory condition determination locally obtained The adaptive-length chooses a regular length, is determined according to message packet length and the preset length Whether cutting processing is carried out to the message packet；Or according to the preparatory condition determination that base station is sent Adaptive-length chooses a regular length, is determined whether according to message packet length and preset length to institute State message packet and carry out cutting processing；Or the part preparatory condition locally obtained is uploaded into base station, by The preparatory condition that base station is locally stored according to the part preparatory condition of upload and base station determines described adaptive long Degree chooses a regular length, and described default according to message packet length, the preset length and whole Condition, determine whether to carry out cutting processing to the message packet；Receive the result of determination that base station is sent；Or Person, the adaptive-length is determined according to the preparatory condition or chooses a regular length, will be described default Length uploads to base station, by base station according to message packet length, the preset length and whole default bars Part, determine whether to carry out cutting processing to the message packet；Receive the result of determination that base station is sent；Or Person, receives the result of determination that base station is sent, and the result of determination includes some or certain group or complete that base station judges Portion's sending node uses certain class message packet more sub-frame transmissions, and/or the transmission that a piece of news message uses Number of sub frames；Or more sub-frame transmissions, and/or a piece of news are used certain class message packet in locally judgement The transmission number of sub frames that message uses, base station is reported to by result of determination.
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| CN201610306123.7A CN107360555A (en) | 2016-05-10 | 2016-05-10 | Method for message transmission and device |
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| CN201610306123.7A CN107360555A (en) | 2016-05-10 | 2016-05-10 | Method for message transmission and device |
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