CN106488384A - A kind of method and device sending packet - Google Patents
A kind of method and device sending packet Download PDFInfo
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- CN106488384A CN106488384A CN201510549096.1A CN201510549096A CN106488384A CN 106488384 A CN106488384 A CN 106488384A CN 201510549096 A CN201510549096 A CN 201510549096A CN 106488384 A CN106488384 A CN 106488384A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
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Abstract
The invention discloses a kind of method and device sending packet, including：When application layer produces packet, the delay requirement during transmission of this packet is determined according to packet producing cause；Carry transmission instruction when packet is sent to Access Layer, described transmission indicates it is to determine according to delay requirement；Send instruction and according to current resource situation in Access Layer according to described, determine the transmission resource sending packet；Described transmission resource sends packet.The needs of various delay data transmission can be met using the present invention, various delay data bags to be transferred to opposite end by corresponding delay requirement.Present invention also offers the Resource Allocation Formula when the delay requirement determining that this packet sends is low time delay.Further, additionally providing guarantees that packet sends the scheme of reliability.
Description
Technical field
The present invention relates to communication technical field, particularly to a kind of method and device sending packet.
Background technology
For in the various use case (use-case) of car networking, during the data transfer that some use case require
Prolonging is 20ms, has plenty of 100ms or 160ms.
Due to the D2D discovery (D2D in D2D (Device to Device, equipment is to equipment) technology
Finding) transmission cycle of providing is 320ms, the dispatching cycle of D2D communication is 40ms.That
, even if subsequently TTI (Transmission Time Interval, Transmission Time Interval) is reduced to currently
Half, all of cycle is reduced to half it is contemplated that propagation delay time, the factor such as scheduling occasion it is also difficult to
Ensure to transmit data to opposite end in 20ms.
Therefore, the deficiencies in the prior art are：If carry out the transmission of related data using D2D technology,
When 20ms low time delay, it is difficult to meet the various use case demands of car networking.
Further, mechanism is not had to provide the delay requirement information of packet at present yet.
Content of the invention
The invention provides a kind of method and device sending packet, in order to meet various delay data transmission
Needs various delay data bags to be transferred to opposite end by corresponding delay requirement.
A kind of method sending packet is provided in the embodiment of the present invention, including：
When application layer produces packet, the time delay during transmission of this packet is determined according to packet producing cause
Require；
Carry transmission instruction when packet is sent to Access Layer, described transmission instruction is true according to delay requirement
Fixed；
Send instruction and according to current resource situation in Access Layer according to described, determine and send sending out of packet
Send resource；
Described transmission resource sends packet.
It is preferred that current resource situation is the situation of current resource authorization.
It is preferred that when being low time delay according to the described delay requirement sending instruction determination this packet transmission：
According to the situation of current resource authorization, when currently there being transmission resource, stop the transmission of other data,
The transmission currently having resource is defined as sending the transmission resource of packet；
According to the situation of current resource authorization, the transmission of broadcast when currently without sending resource, will be used for
Resource is defined as sending the transmission resource of packet, and/or the D2D reserving before is sent in resource pool
Near transmission resource is defined as sending the transmission resource of packet.
It is preferred that the D2D reserving before is sent nearest transmission resource in resource pool being defined as sending number
During according to the transmission resource wrapped, when described transmission resource sends packet, nearest transmission resource connects
Continue and repeatedly send same packet, or reserved D2D before multiple sends nearest transmission in resource pool
Same packet is sent on resource.
It is preferred that described transmission instruction indicates delay requirement by precedence information.
It is preferred that when carrying transmission instruction when packet is sent to Access Layer, being carried using interlayer primitive,
Or carried using default data form.
A kind of device sending packet is provided in the embodiment of the present invention, including：
Delay requirement module, for when application layer produces packet, being determined according to packet producing cause should
Delay requirement when packet sends；
Indicating module, sends instruction for carrying when packet is sent to Access Layer, and described transmission instruction is
Determined according to delay requirement；
Resource module, for sending instruction and according to current resource situation in Access Layer according to described, determines
Send the transmission resource of packet；
Sending module, for sending packet in described transmission resource.
It is preferred that resource module is further used for the situation that current resource situation is current resource authorization.
It is preferred that resource module be further used for according to described send instruction determine this packet send when
When to prolong requirement be low time delay：According to the situation of current resource authorization, when currently there being transmission resource, stop
The transmission of other data, the transmission currently having resource is defined as sending the transmission resource of packet；According to work as
The situation of front resource authorization, when currently without sending resource, the transmission resource being used for broadcasting is defined as
Send the transmission resource of packet, and/or the D2D reserving before is sent nearest transmission money in resource pool
Source is defined as sending the transmission resource of packet.
It is preferred that sending module is further used for for the D2D reserving before sending nearest sending out in resource pool
When sending resource to be defined as the transmission resource sending packet, when described transmission resource sends packet,
In nearest transmission resource, continuous several times send same packet, or reserved D2D before multiple sends
Same packet is sent in nearest transmission resource in resource pool.
It is preferred that indicating module is further used for described transmission instruction indicates that by precedence information time delay will
Ask.
It is preferred that when indicating module is further used for when packet is sent to Access Layer carrying transmission instruction,
Carried using interlayer primitive, or carried using default data form.
The present invention has the beneficial effect that：
In technical scheme provided in an embodiment of the present invention, due to just being contracted for fixed output quotas according to data when producing packet
Raw reason determines the delay requirement of this packet, so, when sending resource for this allocation of packets, just
The transmission resource being adapted therewith can be arranged according to delay requirement, that is, by propagation delay time configured information
To bottom so that bottom can select transfer resource according to time delay configured information.Obviously, when this data of determination
When bag is low time delay requirement, the resource being adapted with this delay requirement just can be arranged to go to send, therefore, adopt
The needs of various delay data transmission can be met with this programme, so as will be various by corresponding delay requirement when
Prolong packet and be transferred to opposite end.
Further, additionally provide in scheme when the delay requirement determining that this packet sends is low time delay
Resource Allocation Formula.
Further, additionally providing guarantees that packet sends the scheme of reliability.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes of the present invention
Point, the schematic description and description of the present invention is used for explaining the present invention, does not constitute to the present invention not
Work as restriction.In the accompanying drawings：
Fig. 1 is car networking communication mode schematic diagram in the embodiment of the present invention；
Fig. 2 is D2D discovery/communication scheme in the embodiment of the present invention；
Fig. 3 is the transmission schematic diagram of SCI and data in the SCI cycle in the embodiment of the present invention；
Fig. 4 is the method implementation process diagram sending packet in the embodiment of the present invention；
Fig. 5 is the apparatus structure schematic diagram sending packet in the embodiment of the present invention；
Fig. 6 is architecture of base station schematic diagram in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is illustrated.
Inventor notices during invention：
Fig. 1 is car networking communication mode schematic diagram, as illustrated, in car networking, V2X (vehicle to
X, car information to external world exchanges) inclusion V2V (vehicle to vehicle, vehicle-to-vehicle information exchanges),
V2I (Vehicle-to-Infrastructure, car is exchanged with the information of infrastructure), V2P
Three kinds of (Vehicle-to-Pedestrian, car is exchanged with the information of people).
Due to 3GPP SA1 (the system architecture demand in System Architecture, 3GPP standardization body
Group) use case and requirement (demand) of V2I and V2P is not also determined completely, here only
List the content related to V2V.
V2V use case and requirement of SA1 definition is as shown in table 1：
V2V use case and requirement of table 1 SA1 definition
Feelings in pre-crash sensing warining be can be seen that by the delay requirement of these use case
Under condition, delay requirement is 20ms, and requires highly-reliable transmission.
For the message of emergency triggering, these message are not that common 100ms requires, and are probably
50ms, in addition shorter.In these cases, on the one hand delay requirement to be met, on the other hand also will protect
Card transmitting.
However, existing D2D communication mechanism does not ensure that this low time delay requirement, cannot guarantee that transmission
Reliability, specifically described below.
First, D2D is close to service
D2D, i.e. terminal direct connection technology, refer to that neighbouring terminal can be passed through in short range direct-connected
The mode that link carries out data transmission, it is not necessary to be forwarded by Centroid (i.e. base station), is also not required to
To carry out the information transfer between UE by traditional cellular link.
In 3GPP, D2D includes following two big class close to service：
D2D finds：UE confirms another one UE in its vicinity using E-UTRA.For example, D2D
UE can come taxi, searching friend in its vicinity of finding nearby etc. using this service；
D2D communicates：Fig. 2 is D2D discovery/communication scheme, as illustrated, UE close to each other,
By directly setting up link between two UE, the communication link conversion by network transmission so by script
For local DCL, save substantial amounts of bandwidth and network efficiency；Or two close to each other
UE, it is possible to use the direct point-to-point data link communication service cheap to obtain stable high speed.Logical close to service
Letter is usually carry out under network controls or auxiliary, eNB (evolved Node Base Station,
Evolved base station) possibly even can be for carrying out the UE dynamically Resources allocation close to communication for service.
For the ease of description, two kinds of Linktypes can be defined：
D2D link：The link directly being communicated between equipment and equipment；
D2N (Device-to-Node, equipment is to node) link：Led between equipment and network node
The link of letter.
Additionally, the UE participating in D2D discovery/communication is divided into two kinds of roles：
D2D sends UE：Send the UE of D2D discovery/communication information；
D2D receives UE：Receive the UE that D2D sends discovery/communication information that UE sends.
2nd, the transmission method of PC5 interface D2D communication
In the D2D of Rel-12 (Release-12, version 12) communicates, only introduce two kinds of physical channels
Definition：
SCI (Scheduling Control Information, scheduling control information), it is used for transmitting D2D
Dispatch on link, receiving terminal indicates according to the signaling in the SCI receiving, and carries out Data (number
According to) detection of channel；
Data channel, for transmitting the data on D2D link, the attribute of its transmission indicates in SCI.
Fig. 3 is the transmission schematic diagram of SCI and data in the SCI cycle, the SCI cycle as depicted
Interior, in the control signaling carrying in SCI, mainly comprise following information：
1st, SA (Scheduling Assignment, dispatching distribution) ID (8 bit)：
SA ID is mainly used in reception UE and judges whether the business of current transmission is the industry oneself needing to receive
Business.
2nd, MCS (Modulation and Coding Scheme, modulation coding mode) (5 bit)
For indicating the MCS of subsequent data transmission, its continue to use existing LTE (Long Term Evolution,
Long Term Evolution) MCS and TBS (Transport Block Size, transport block format) design,
In mode 1 resource allocation methods, if eNB is configured with D2D data transfer MCS by high-level signaling
Grade, then MCS in SCI obtains according to the configuration of high-level signaling；If eNB is configured without counting
Grade according to the MCS of transmission, then the MCS grade of the spontaneous selection data transfer of UE.
3rd, Hopping flag (frequency hopping mark) and resource indication informationThan
Special)
In order to obtain more preferable coverage in D2D communication, need to support the transmission of frequency hopping, thus obtaining
Obtain frequency diversity gain.Need to support multiple business in Public Safety (public safety) network simultaneously
Type, and it is not only VoIP (Voice over IP, IP-based voice transfer) business, therefore exist
Frequency domain subchannel is not divided in the transmission of Data, but the method using flexible resource instruction.Here
On the basis of, DCI format (Downlink Control Information format, descending control signaling form)
0 frequency hopping and resource indication information can completely be multiplexed in SCI.Resource allocation side in Mode 1
In method, Hopping Flag and resource indication information are straight according to the information in D2D grant (resource authorization)
Connect and obtain.
4th, T-RPT (Time Repetition Patterns for Transmission sends time repetitions patterns)
Instruction (7 bit)
Predefined by system or the high-rise T-RPT index (index) configuring and concrete pattern (mould
Formula) corresponding relation, in SCI instruction Data transmission T-RPT pattern index information, from
And receiving terminal can be according to the instruction receiving data of the T-RPT in SCI.
In Mode 1 resource allocation methods, T-RPT instruction is the continuous T-RPT in N number of sub-frame of uplink
In pattern, Mode 1, T-RPT information is to be directly obtained according to the configured information in D2D grant.
In Mode 2 resource allocation methods, T-RPT instruction is continuously in N number of D2D subframe
It is to be determined according to D2D subframe in T-RPT pattern, Mode 2.
5th, TA (Timing Advance, Timing Advance) (6 bit)
Here TA is mainly used in indicating in Mode 1 resource allocation methods, the timing of Data transmission in advance
Amount.Because the UE of Mode 1 is in RRC (Radio Resource Control, wireless heterogeneous networks)
Connection status, the UE of one side Mode 1 can obtain TA information, on the other hand by with cellular uplink
The synchronous transmission of PUSCH (Physical Uplink Shared Channel, physical uplink link shared channels)
Mode, can reduce the interference to honeycomb PUSCH transmission.
3rd, LTE D2D communication resource distribution mode
D2D communication supports that two kinds of D2D send resource distribution mode：
1st, UE independently selects the resource distribution mode (Mode2) of resource：I.e. UE voluntarily from pre-configured or
Sending of Web broadcast selects in resource pool to send the mode that resource carries out D2D transmission；
2nd, the resource distribution mode (Mode1) of network scheduling：The Sidelink being reported according to UE by network
(straight-through link) BSR (Buffer state reporting, relief area reports) is the side of UE Resources allocation
Formula.
As fully visible, the design of current D2D cannot meet the propagation delay time requirement of the fastest 20ms in V2V,
Even if TTI will be reduced to half in future, cannot guarantee that data can be transferred to opposite end in 20ms.
In addition the different delay also not distinguishing different data at present requires.Further, there is no mechanism at present yet
The delay requirement information of packet is provided.
Based on this, embodiments providing a kind of method sending packet, in order to meet low time delay
The needs of data transfer, to be quickly transferred to opposite end by low time delay packet.For example for emergency
The transmission of the message of triggering, further also in order to ensure transmitting.
Fig. 4 is the method implementation process diagram sending packet, as illustrated, can include：
Step 401, application layer produce packet when, determine that this packet is sent out according to packet producing cause
Delay requirement when sending；
Step 402, carry when packet is sent to Access Layer transmission instruction, described transmission instruction be basis
Delay requirement determines；
Step 403, send instruction and according to current resource situation in Access Layer according to described, determine and send
The transmission resource of packet；
Step 404, described transmission resource on send packet.
The program can be implemented in the terminal of V2V, and in enforcement, application layer produces packet, according to generation
The reason (as according to the related news of use case) difference, determine Delay, and this information sent out
To Access Layer, such as PDCP (Packet Data Convergence Protocol, packet data polymerized agreement)
Layer.
In enforcement, current resource situation can be the situation of current grant (resource authorization).
In being embodied as, it is being low time delay according to the described delay requirement sending instruction determination this packet transmission
When：
According to the situation of current grant (resource authorization), when currently there being transmission resource, stop other numbers
According to transmission, by the transmission currently having resource be defined as send packet transmission resource；
According to the situation of current grant (resource authorization), when currently without sending resource, will be used for wide
The transmission resource broadcast is defined as sending the transmission resource of packet, and/or the D2D reserving before is sent money
Nearest transmission resource in the pond of source is defined as sending the transmission resource of packet.
Specifically, the configured information that Access Layer can carry according to upper strata, according to current grant, (resource is awarded
Power) situation, determine be transmitted using which kind of mode：
When currently there being transmission resource (resource obtaining as mode 1 mode), other data can be stopped
Send, the packet that forward scheduling low time delay requires sends；
When currently without sending resource, directly send resource pool from broadcast or D2D reserved before
Nearest transmission resource is selected to be transmitted.
In being embodied as, in order to improve the reliability of data transfer, packet can continuously repeat multiple transmission,
Multiple resource pools can also be selected to carry out identical data transmission.That is, sending in the D2D that will reserve before
When nearest transmission resource in resource pool is defined as the transmission resource sending packet, money can be sent described
When sending packet on source, in nearest transmission resource, continuous several times send same packet, or multiple
The D2D before reserving sends and sends same packet in nearest transmission resource in resource pool.
In enforcement, when carrying transmission instruction when packet is sent to Access Layer, it is possible to use interlayer primitive comes
Carry, or carried using default data form.
Specifically, the Delay of transmission can be carried using interlayer primitive, it is possible to use specifically counts
To carry according to form.The content of Delay can be indicated using 1 bit, for example, this bit is arranged
During for 1, expression is the packet of low time delay, is set to when 0 or does not carry this bit then it represents that being
The packet of normal time delay.Can also be represented with multiple bits presetting length, different value,
Represent delay requirement different.
In such scheme, central scope is, application layer carries the time delay of this packet when issuing packet
Configured information, Access Layer, according to this configured information, selects resource to send as early as possible.If currently just had
Because the resource of other data applications, then suspend other data is activations, preferential transmission delay requires 20ms's
Packet.If currently without available transmission resource, selecting to send in broadcast or reserved resource pool
Resource, as early as possible transmission delay require the packet for 20ms.And it is possible to be repeated several times by sending.For more
Understand well, illustrated with example more below.
Embodiment 1：
When a car finds will occur inevitably to collide with another car, i.e. pre-crash sensing
The use case of warning, now can produce the alarm information of correlation.Application layer is by this alarm information affix
Time delay configured information is sent to low layer.MAC (Media Access Control, medium education) layer is received
To this packet, and after time delay configured information, check the current special transmission resource that whether there is and authorize,
This transmission resource is possibly due to other data and asks, if it is present terminal uses this transmission to provide
Source, the packet of this alarm information of priority scheduling, and can continuously retransmit repeatedly.If currently without awarding
The special transmission resource of power, then select the transmission resource closed on to carry out from broadcast or pre-configured resource pool
This message sends, and can continuously transmit repeatedly.If there is multiple resource pools, terminal can also select many
Transmission resource is all selected to be transmitted on individual resource pool.
Embodiment 2：
Low time delay configured information can pass through interlayer primitive, is carried.This data is issued by such as application layer
During PDCP, individually indicate this low time delay configured information, PDCP to RLC (Radio Link Control,
Wireless spread-spectrum technology), RLC issues MAC, all carries out the forwarding of this configured information by interlayer primitive.
After MAC receives, according to this configured information, execute the resource selection in embodiment 1 and transmission process.
Embodiment 3：
In this example, send instruction and can be by precedence information to indicate delay requirement.
This configured information can be bound with precedence information.Such as the priority now with packet transmission refers to
It is shown as 3 bits, when 3 bits are 1, expression is that minimum-time lag sends, then when MAC receives
During to this information, execute the resource selection in embodiment 1 and transmission process.
Embodiment 4：
This configured information can indicate the front 1- of subsequent data packet portion by special PDCP header structure
Multiple bits are Delay.Such as：SDU (Service Data Unit business datum in PDCP head
Unit) type (type) middle increase by one class：Low time delay data.
So can know that this packet is low time delay packet according to this information in PDCP head.?
When being sent to bottom, individually indicate that it is low time delay packet, can adopt here but be not limited to using special
Different RLC SDU form and MAC SDU form.Increase corresponding domain in corresponding SDU form
To indicate the low time delay information of correlation.The priority treatment in MAC layer scheduled transmission, and according to resource situation,
The suitable resource that sends is selected to be transmitted.
For receiving terminal, receiving the PDCP packet of this type, can be according to the information in packet header, preferentially
It is sent to upper strata, send alarm as early as possible.
Embodiment 5：
When application layer indicates this packet for low time delay packet, Access Layer principle in the following order
Carry out resource selection：
The special transmission resource having the base station that can use at once to distribute, then preferentially send alarm using this resource
Information；
Without suitably special transmission resource pool, then selected in broadcast or pre-configured resource pool
Select
When there are multiple resource pools, terminal can select the resource in the resource pool of limit priority to carry out sending out
Send it is also possible to ignore the priority binding relation of these resource pools, but directly therefrom select nearest transmission
Resource is transmitted；
If the channel quality on sidelink interface is bad, select multiple nearest in multiple resource pools
Send the transmission that resource carries out identical data packet, to improve successful receiving rate.As there being 4 resource pools
In the case of, the resource of 2-4 resource pool can be selected to be transmitted.
Based on same inventive concept, in the embodiment of the present invention, additionally provide a kind of device sending packet, by
, the enforcement of therefore these equipment similar to a kind of method sending packet in the principle of this device solve problem
May refer to the enforcement of method, repeat no more in place of repetition.
Fig. 5 is the apparatus structure schematic diagram sending packet, as illustrated, can include in device：
Delay requirement module 501, for when application layer produces packet, true according to packet producing cause
Delay requirement when this packet fixed sends；
Indicating module 502, sends instruction for carrying when packet is sent to Access Layer, and described transmission refers to
Show it is to determine according to delay requirement；
Resource module 503, for sending instruction and according to current resource situation in Access Layer according to described,
Determine the transmission resource sending packet；
Sending module 504, for sending packet in described transmission resource.
In enforcement, resource module can also be further used for the feelings that current resource situation is current resource authorization
Condition.
In enforcement, resource module can also be further used for being sent out according to described instruction this packet of determination that sends
When the delay requirement sending is low time delay：According to the situation of current resource authorization, when currently there being transmission resource,
Stop the transmission of other data, the transmission currently having resource is defined as sending the transmission resource of packet；Root
According to the situation of current resource authorization, when currently without sending resource, will be true for the transmission resource being used for broadcasting
It is set to the transmission resource sending packet, and/or the D2D reserving before is sent nearest sending out in resource pool
Resource is sent to be defined as sending the transmission resource of packet.
In enforcement, sending module can also be further used for sending in resource pool the D2D reserving the most before
When near transmission resource is defined as the transmission resource sending packet, described transmission resource sends packet
When, in nearest transmission resource, continuous several times send same packet, or reserved D2D before multiple
Send and send same packet in nearest transmission resource in resource pool.
In enforcement, indicating module can also be further used for described transmission instruction and be indicated by precedence information
Delay requirement.
In enforcement, indicating module can also be further used for carrying transmission when packet is sent to Access Layer and refer to
When showing, carried using interlayer primitive, or carried using default data form.
For convenience of description, each several part of apparatus described above is divided into various modules or unit respectively with function
Description.Certainly, can be the function of each module or unit in same or multiple softwares when implementing the present invention
Or realize in hardware.
When implementing technical scheme provided in an embodiment of the present invention, can implement as follows.
Fig. 6 is architecture of base station schematic diagram, as illustrated, base station includes：
Processor 600, for reading the program in memorizer 620, executes following process：
When application layer produces packet, the time delay during transmission of this packet is determined according to packet producing cause
Require；
Send instruction and according to current resource situation in Access Layer according to described, determine and send sending out of packet
Send resource；
Transceiver 610, for sending data under the control of processor 600, executes following process：
Carry transmission instruction when packet is sent to Access Layer, described transmission instruction is true according to delay requirement
Fixed；
Described transmission resource sends packet.
In enforcement, current resource situation is the situation of current resource authorization.
In enforcement, when being low time delay according to the described delay requirement sending instruction determination this packet transmission：
According to the situation of current resource authorization, when currently there being transmission resource, stop the transmission of other data,
The transmission currently having resource is defined as sending the transmission resource of packet；
According to the situation of current resource authorization, the transmission of broadcast when currently without sending resource, will be used for
Resource is defined as sending the transmission resource of packet, and/or the D2D reserving before is sent in resource pool
Near transmission resource is defined as sending the transmission resource of packet.
In enforcement, the D2D reserving before is sent nearest transmission resource in resource pool and is defined as sending number
During according to the transmission resource wrapped, when described transmission resource sends packet, nearest transmission resource connects
Continue and repeatedly send same packet, or reserved D2D before multiple sends nearest transmission in resource pool
Same packet is sent on resource.
In enforcement, described transmission instruction indicates delay requirement by precedence information.
In enforcement, when carrying transmission instruction when packet is sent to Access Layer, carried using interlayer primitive,
Or carried using default data form.
Wherein, in figure 6, bus architecture can include bus and the bridge of any number of interconnection, specifically by
One or more processors and the various electrical chains of the memorizer of memorizer 620 representative that processor 600 represents
It is connected together.Bus architecture can also be by such as ancillary equipment, manostat and management circuit or the like
Various other circuit link together, and these are all it is known in the art, therefore, no longer it are entered herein
Row further describes.EBI provides interface.Transceiver 610 can be multiple element, that is, include sending
Machine and transceiver, provide the unit for communicating over a transmission medium with various other devices.Processor 600
It is responsible for bus architecture and common process, memorizer 620 can store processor 600 and execute operation
When the data that used.
In sum, in technical scheme provided in an embodiment of the present invention, the data generating in application layer is being sent out
When transmitting, carry the time delay configured information of this data to bottom.After bottom receives, entered according to this configured information
Row resource selection and transmission.Specifically, it is so that bottom being capable of root by propagation delay time configured information to bottom
Select transfer resource according to time delay configured information.Also thus the packet of low time delay requirement can be made to send as soon as possible
To receiving terminal.Meet its low time delay, highly reliable transmission requirement.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or knot
Close the form of the embodiment of software and hardware aspect.And, the present invention can adopt and wherein wrap one or more
Computer-usable storage medium containing computer usable program code (including but not limited to disk memory and
Optical memory etc.) the upper computer program implemented form.
The present invention is to produce with reference to method according to embodiments of the present invention, equipment (system) and computer program
The flow chart of product and/or block diagram are describing.It should be understood that can by computer program instructions flowchart and
/ or block diagram in each flow process and/or the flow process in square frame and flow chart and/or block diagram and/
Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embed
The processor of formula datatron or other programmable data processing device is to produce a machine so that passing through to calculate
The instruction of the computing device of machine or other programmable data processing device produces for realizing in flow chart one
The device of the function of specifying in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and computer or other programmable datas can be guided to process and set
So that being stored in this computer-readable memory in the standby computer-readable memory working in a specific way
Instruction produce and include the manufacture of command device, the realization of this command device is in one flow process or multiple of flow chart
The function of specifying in flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makes
Obtain and series of operation steps is executed on computer or other programmable devices to produce computer implemented place
Reason, thus the instruction of execution is provided for realizing in flow chart one on computer or other programmable devices
The step of the function of specifying in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these modification and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these changes and modification.
Claims (12)
1. a kind of method sending packet is it is characterised in that include：
When application layer produces packet, the time delay during transmission of this packet is determined according to packet producing cause
Require；
Carry transmission instruction when packet is sent to Access Layer, described transmission instruction is true according to delay requirement
Fixed；
Send instruction and according to current resource situation in Access Layer according to described, determine and send sending out of packet
Send resource；
Described transmission resource sends packet.
2. the method for claim 1 is it is characterised in that current resource situation is current resource
Situation about authorizing.
3. according to described transmission, method as claimed in claim 2 is it is characterised in that indicating that determination should
When the delay requirement that packet sends is low time delay：
According to the situation of current resource authorization, when currently there being transmission resource, stop the transmission of other data,
The transmission currently having resource is defined as sending the transmission resource of packet；
According to the situation of current resource authorization, the transmission of broadcast when currently without sending resource, will be used for
Resource is defined as sending the transmission resource of packet, and/or the equipment reserved before is sent to equipment D2D
Nearest transmission resource in resource pool is defined as sending the transmission resource of packet.
4. method as claimed in claim 3 is it is characterised in that send resource by the D2D reserving before
When nearest transmission resource in pond is defined as the transmission resource sending packet, described transmission resource sends
During packet, in nearest transmission resource, continuous several times send same packet, or reserved before multiple
D2D send in resource pool and send same packet in nearest transmission resource.
5. the method for claim 1 is it is characterised in that described transmission instruction is believed by priority
Cease and to indicate delay requirement.
6. described method as arbitrary in claim 1 to 5 is it is characterised in that connect being sent to packet
When carrying transmission instruction when entering layer, carried using interlayer primitive, or carried using default data form.
7. a kind of device sending packet is it is characterised in that include：
Delay requirement module, for when application layer produces packet, being determined according to packet producing cause should
Delay requirement when packet sends；
Indicating module, sends instruction for carrying when packet is sent to Access Layer, and described transmission instruction is
Determined according to delay requirement；
Resource module, for sending instruction and according to current resource situation in Access Layer according to described, determines
Send the transmission resource of packet；
Sending module, for sending packet in described transmission resource.
8. device as claimed in claim 7 is it is characterised in that resource module is further used for currently providing
Source situation is the situation of current resource authorization.
9. device as claimed in claim 8 is it is characterised in that resource module is further used in basis
When the described delay requirement sending instruction determination this packet transmission is low time delay：According to current resource authorization
Situation, currently have send resource when, stop the transmission of other data, will be true for the transmission currently having resource
It is set to the transmission resource sending packet；According to the situation of current resource authorization, providing currently without sending
During source, the transmission resource being used for broadcasting is defined as sending the transmission resource of packet, and/or will reserve before
D2D send resource pool in nearest transmissions resource be defined as transmission packet transmission resource.
10. device as claimed in claim 9 is it is characterised in that sending module is further used for before
When reserved D2D sends the transmission resource that nearest transmission resource in resource pool is defined as transmission packet,
When sending packet in described transmission resource, in nearest transmission resource, continuous several times send same data
Wrap, or reserved D2D before multiple sends and sends same data in nearest transmission resource in resource pool
Bag.
11. devices as claimed in claim 7 are it is characterised in that indicating module is further used for described sending out
Instruction is sent to indicate delay requirement by precedence information.
12. described device as arbitrary in claim 7 to 11 is it is characterised in that indicating module is further
When sending instruction for carrying when packet is sent to Access Layer, carried using interlayer primitive, or use
Default data form is carrying.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510549096.1A CN106488384B (en) | 2015-08-31 | 2015-08-31 | Method and device for sending data packet |
| PCT/CN2016/096732 WO2017036342A1 (en) | 2015-08-31 | 2016-08-25 | Method and apparatus for transmitting a data packet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510549096.1A CN106488384B (en) | 2015-08-31 | 2015-08-31 | Method and device for sending data packet |
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| Publication Number | Publication Date |
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| CN106488384A true CN106488384A (en) | 2017-03-08 |
| CN106488384B CN106488384B (en) | 2020-02-21 |
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| CN201510549096.1A Active CN106488384B (en) | 2015-08-31 | 2015-08-31 | Method and device for sending data packet |
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Also Published As
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| CN106488384B (en) | 2020-02-21 |
| WO2017036342A1 (en) | 2017-03-09 |
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