CN106488564B - A kind of transmission method and device of frame information - Google Patents
A kind of transmission method and device of frame information Download PDFInfo
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- CN106488564B CN106488564B CN201510549856.9A CN201510549856A CN106488564B CN 106488564 B CN106488564 B CN 106488564B CN 201510549856 A CN201510549856 A CN 201510549856A CN 106488564 B CN106488564 B CN 106488564B
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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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Abstract
The invention discloses the transmission methods and device of a kind of frame information FI to improve system frequency efficiency to reduce frame information expense.The transmission method of frame information FI provided by the invention a kind of, this method comprises: determining the FI for needing to send on sending resource, including the occupancy information for each resource that this node perceives, the occupancy information of each resource does not include occupying the corresponding temporary resource mark STI information of node of the resource；Wherein, the resource is time slot or time frequency block；Send the FI.
Description
Technical field
The present invention relates to the transmission of field of communication technology more particularly to a kind of frame information (Frame Information, FI)
Method and device.
Background technique
The existing distributed resource allocation algorithm based on FI mode time slot reservation, FI protocol overhead is bigger, cause be
Frequency efficiency of uniting is relatively low.
Slot reservations distributing slot resources algorithm mechanism refers to the distributing slot resources mechanism using slot reservations mode, leads to
The reserved of time interval resource is often realized by frame information (FI) interaction, compares typically RR-ALOHA, MS-ALOHA algorithm,
MS-ALOHA basic principle is as follows:
Mobile time-division LOHA (Mobile Slotted Aloha, MS-ALOHA) mechanism is a kind of based on the special of time-sharing format
With short-range communication technology (Dedicated Short Range Communications, DSRC) media access control (MAC) layer
Access and time interval resource are multiplexed mechanism, and resource multiplex is based on frame structure with time slot (slot) as unit.As shown in Figure 1, per N number of
Slot constitutes a frame (being denoted as Frame), and the number of the slot in each frame is 0~N-1, moves in circles between frames.Each
Only a vehicle is allowed to be sent in slot, i.e., is time division multiplexing access (Time Division Multiple between vehicle
Access, TDMA) mode.Vehicle on occupied time slot in not only sending application layer data, but also need to send FI,
The occupancy of each slot in a frame can be indicated in FI, for example, a kind of possible FI structure is as shown in Figure 2.
The basic thought of MS-ALOHA mechanism is: when network is added in node (such as car-mounted terminal), needing by monitoring frame
Information determines the free timeslot resource in system, the time slot for then selecting a free timeslot to occupy as oneself, if node
It does not hear negative-feedback, then can use the occupancy slot transmission data always, other nodes cannot use the time slot in the meantime.
On the time slot of occupancy, node needs periodicity sending FI, carry that node obtains in FI with the node within the scope of double bounce
Other nodes the case where occupying time slot, the occupancy information of each time slot that instruction node perceived arrives gives each time slot
The occupancy information of the time slot includes: Time Slot Occupancy status information, the corresponding temporary resource mark of node for occupying time slot out
(Source Temporary Identifier, STI) or the priority state that can be described as node identification, the node for occupying time slot
(being also believed to occupy the corresponding priority state of data that time slot node is sent in the time slot)；Wherein, Time Slot Occupancy state
Information can express four kinds of occupied states of time slot: (00) indicates that time slot is idle state, (10) indicate time slot by with this section
Other nodes that point is jumped at a distance of one occupy (a referred to as hop node occupancys) or this node and occupy, (11) indicate time slot by with originally
Node occupies (referred to as two hop nodes occupancy) at a distance of other nodes of double bounce, and (01) indicates that time slot is more than two by other
Node occupies, as collision status.It is sent in the time slot of non-self occupancy, each node by monitoring the node that adjacent one jumps
FI can judge that adjacent three jump the case where each node occupies time slot in range, when find time interval resource that this node occupies with
When the resource that other nodes use collides, the time interval resource of release busy reserves new free timeslot as oneself again
Occupancy time slot.For convenience of subsequent descriptions, mode described below is used uniformly to FI and its internal information content:
The frame information (FI) that node is sent is known as: FI message can be also simply referred to as FI；
The corresponding occupancy information of each time slot indicated in FI is known as: the corresponding time slot letter of each time slot in FI message
Cease domain；
Three category informations (that is: the Time Slot Occupancy state, STI, excellent provided in the corresponding occupancy information of each time slot in FI
First grade information) it is referred to as: Time Slot Occupancy state subdomain, the STI subdomain, priority for including in the gap information domain of each time slot
Subdomain；
It is conveniently provided it should be noted that foregoing description mode is intended merely to subsequent descriptions, naturally it is also possible to use it
His describing mode.
Under MS-ALOHA mechanism, in the maintenance process to gap information, node needs to safeguard that N*N time slot state caches
Table, for storing the gap information domain of each time slot carried in the FI message that the adjacent node received on corresponding time slot is sent,
Every a line is stored in the FI information received on corresponding time slot, such as: in the FI information preservation that the 0th time slot receives in time slot
The FI information preservation that the first row of state cache table, the 1st time slot receive time slot state cache table the second row ..., it is each
Column are stored in correspondence gap information indicated in the FI received, as first row saves the time slot 0 indicated in each received FI
Gap information, secondary series save the gap information ... of the time slot 2 indicated in each received FI.M*n in time slot state caching
The information saved in lattice is that the information of n-th of the time slot indicated in FI is received on m-th of time slot.Time slot shape shown in Fig. 3
The dimension of state cache table is N*N dimension, and since node itself does not need to store in the FI message that shared time slot is sent, node is real
The time slot state cache table of border maintenance is N-1 row (assuming that each node only takes up a time slot)；Wherein, the corresponding detection of time slot
Domain, which refers to, occupies " detecting domains " that the corresponding gap information domain of the time slot in the FI message that the time slot is sent is known as the time slot, " non-
Detecting domains " refer to the unoccupied time slot send FI in the corresponding gap information domain of the time slot be known as the time slot it is non-" detection
Domain ".Wherein default value is default value.
When node receives FI message over a slot, always with the gap information carried in the FI message newly received
The time slot information content of the row is corresponded in content covering time slot state cache table (to record on identical time slot in covering former frame
FI content).Detailed process is as follows:
Node needs to receive the FI message of surroundings nodes transmission on the time slot of non-self occupancy, and according to receiving
Whether FI information updating time slot state cache table, the time slot for judging that itself is occupied before reaching the time slot that this node itself occupies are tieed up
Protect successfully and it is non-oneself occupy each time slot of time slot occupied state, wherein be not received by when on the time slot in non-self occupancy
Each domain of the corresponding row of the time slot in time slot state cache table can be filled out default value by FI, node.Default value currently presses sky
Not busy state (00) processing, naturally it is also possible to define other processing modes.
It is concurrent that node generates FI according to the information recorded in the time slot state cache table of maintenance on the time slot that itself is occupied
Send FI message.It needs to fill in the content in the corresponding gap information domain of time slot in FI according to certain rule when generating FI, including when
Gap occupied state subdomain, STI subdomain and priority subdomain.After being sent, node can empty transmitted FI information.
In conclusion can be seen that in the prior art from FI frame structure, FI expense is bigger, and spectrum efficiency is relatively low.Such as
Fruit considers that subsequent increase frequency division or frame length shorten if increasing capacity, and FI expense can also increase therewith.
Summary of the invention
The embodiment of the invention provides the transmission methods and device of a kind of frame information FI to mention to reduce frame information expense
High system frequency efficiency.
The transmission method of frame information FI provided in an embodiment of the present invention a kind of, comprising:
The FI for needing to send on sending resource is determined, including the occupancy for each resource that this node perceives
Information, the occupancy information of each resource do not include the corresponding temporary resource mark STI letter of node for occupying the resource
Breath；Wherein, the resource is time slot or time frequency block；
Send the FI.
In this way, each resource perceived in sending the FI that the needs that resource determines are sent including this node
Occupancy information, the occupancy information of each resource do not include the corresponding temporary resource mark of node for occupying the resource
Therefore knowing STI information reduces frame information expense, improve system frequency efficiency.
Preferably, the occupancy information of each resource includes the resource occupation status information of the resource.
The transmission method of frame information FI provided in an embodiment of the present invention a kind of, comprising:
Receive FI in each reception resource, including send the FI node perceived to each resource occupancy shape
Condition information, the occupancy information of each resource do not include the corresponding temporary resource mark STI of node for occupying the resource
Information；
Bottom layer treatment is carried out to each reception resource, wherein the resource is time slot or time frequency block.
Preferably, carrying out bottom layer treatment to each reception resource, specifically include:
Resource is received by bottom measurement for each, judges whether collided in the resource, when determining the money
When source collides, determine that the occupied state of the resource of this node perceived is to be collided.
It is measured preferably, receiving resource for each by bottom, judges whether collided in the resource, specifically
Include:
For each reception resource, such as the FI decoding failure that is received in the resource: if by signal and interference and noise
Than SINR, and general power is received, judges whether the resource is that strongly disturbing collision resource has occurred；Alternatively, passing through jamming power
Judge whether the resource is that strongly disturbing collision resource has occurred；
For each reception resource, such as successfully decoded in the FI that is received in the resource, then: should by jamming power judgement
Whether resource is that strongly disturbing collision resource has occurred.
Preferably, measured when by bottom, when determining a resource there is no colliding, this method further include:
When the resource, which jumps neighbors by itself one, to be occupied, if the resource occupation status information in the FI received indicates
The resource is collided, then finally determines that the occupied state of the resource of this node perceived is to have occurred to collide the resource.
The transmitting device of frame information FI provided in an embodiment of the present invention a kind of, comprising:
Each of determination unit, for the determining FI for needing to send on sending resource, perceived including this node
The occupancy information of resource, the occupancy information of each resource do not include occupy the resource node it is corresponding interim
Resource identification STI information；Wherein, the resource is time slot or time frequency block；
Transmission unit, for sending the FI.
Preferably, the occupancy information of each resource includes the resource occupation status information of the resource.
The transmitting device of frame information FI provided in an embodiment of the present invention a kind of, comprising:
Receiving unit, for receiving FI in each reception resource, including send the FI node perceived to it is every
The occupancy information of a resource, the occupancy information of each resource do not include occupying the node of the resource corresponding to face
When resource identification STI information；
Processing unit, for carrying out bottom layer treatment to each reception resource, wherein the resource is time slot or time frequency block.
Preferably, the processing unit, is specifically used for:
Resource is received by bottom measurement for each, judges whether collided in the resource, when determining the money
When source collides, determine that the occupied state of the resource of this node perceived is to be collided.
Preferably, the processing unit, receives resource for each and is measured by bottom, judge whether send out in the resource
When having given birth to collision, it is specifically used for:
For each reception resource, such as the FI decoding failure that is received in the resource: if by signal and interference and noise
Than SINR, and general power is received, judges whether the resource is that strongly disturbing collision resource has occurred；Alternatively, passing through jamming power
Judge whether the resource is that strongly disturbing collision resource has occurred；
For each reception resource, such as successfully decoded in the FI that is received in the resource, then: should by jamming power judgement
Whether resource is that strongly disturbing collision resource has occurred.
Preferably, the processing unit, measures when by bottom, determining a resource, there is no being also used to when collision: when
When the resource jumps neighbors occupancy by itself one, if the resource occupation status information in the FI received indicates that the resource occurs
Collision then finally determines that the occupied state of the resource of this node perceived is to have occurred to collide the resource.
Preferably, the device further includes the receiving unit and processing unit.
Detailed description of the invention
Fig. 1 is frame structure schematic diagram in the prior art；
Fig. 2 is FI structural schematic diagram in the prior art；
Fig. 3 is time slot state cache table in the prior art；
Fig. 4 is a kind of process signal of the transmission method of frame information FI of sending node side provided in an embodiment of the present invention
Figure；
Fig. 5 is a kind of process signal of the transmission method of frame information FI of receiving node side provided in an embodiment of the present invention
Figure；
Fig. 6 is a kind of structural schematic diagram of sender unit provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of another signal receiving device provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of the third signal receiving device provided in an embodiment of the present invention.
Specific embodiment
The embodiment of the invention provides the transmission methods and device of a kind of frame information FI to mention to reduce frame information expense
High system frequency efficiency.
Resource described in the embodiment of the present invention is illustrated by taking time slot as an example, single for the minimum of TDM, i.e. resource
Position is with regard to an entire time interval resource, for FDM, i.e., multiple one time interval resource of node frequency division multiplexing, in this case, resource
Minimum unit just not instead of time slot, time frequency block.
In the technical solution provided in the embodiment of the present invention, about the perception of time slot state, it is mainly used for the selection of time slot,
(booking-mechanism) is occupied always if collisionless after selection.About the discovery of collision, it is found that when time slot collision carries out later
The gravity treatment of gap.The still time slot perception information of foundation.
In the embodiment of the present invention, the processing (STI combination hop count) for collision is mainly had modified.Here mainly by bottom
Measurement does not need to interact STI between node to determine come the judgement collided.Reserved time slot state aware part is (single
Pure hop count).
Detailed process:
Node transmission process, referring to fig. 4, a kind of transmission method of frame information FI provided in an embodiment of the present invention, comprising:
S101, the FI for needing to send is determined in sending time slots, including the occupancy for each time slot that this node perceives
Condition information, the occupancy information of each time slot do not include occupying the corresponding temporary resource mark of node of the time slot
STI information；Wherein, the sending time slots send resource.
S102, the FI is sent.
No need to send STI information during transmission.But still it needs to indicate hop count information.The information of transmission depends on
The maintenance of internal state, transmission process only do a basic mapping.The maintenance of internal state depends primarily on receive process.
Preferably, the occupancy information of each time slot includes the Time Slot Occupancy status information of the time slot.In addition, also
It may include priority status information described in background technology.
Correspondingly, node receive process, referring to Fig. 5, a kind of transmission method of frame information FI provided in an embodiment of the present invention,
Include:
S201, FI is received in each reception resource, i.e., receive FI in all reception time slots, including the transmission FI
The occupancy information of each time slot that arrives of node perceived, the occupancy information of each time slot does not include when occupying this
The corresponding temporary resource of the node of gap identifies STI information；
S202, bottom layer treatment is carried out to each reception resource, i.e., in each reception time slot, regardless of whether decoding FI all
Need to do this processing.
In receiving node side, handled about high level:
Under no bottom information state: because of no STI information, it is identical that processing when, which is equivalent to all STI all,
STI, being equivalent to receive is all positive feedback.That is: the positive of occupied state merges.
The only hop count information of processing.It is mainly used for the perception of time slot state, and then is used for the selection of time slot.To time slot
The judgement of collision is without contribution.
In receiving node side, about bottom layer treatment:
Bottom measurement, determines whether to occur time slot collision, and this information is blazed abroad.Contain following two categories bottom
Layer measurement carrys out instruction time slot and there is interference, determines that there are time slot collisions for the time slot；
Bottom measurement has following two categories:
Type one is interfered: for the node of decoding failure: can pass through signal and interference and noise ratio (Signal to
Interference plus Noise Ratio, SINR) and the relative size of general power is received to determine, for example receive total work
Rate is more than preset reception general power thresholding, but SINR is less than preset SINR thresholding, it is possible to determine that strong jamming has occurred；?
It can be determined by the value of jamming power, for example (receive prominent signal according to signal power as signal source, utilize
The signal power of the signal source is calculated) and general power is received, jamming power is determined, if jamming power is higher than preset do
Disturb power threshold, it is possible to determine that strong jamming has occurred；Wherein, the occurrence of any thresholding, can be according to actual needs
Depending on, its value is not defined in the embodiment of the present invention.
Application scenarios: just for the user not solved out in the time slot (in time/frequency source block), (one is not all decoded
Success).Determine that strong jamming has occurred in this kind of time slots (running time-frequency resource) when node is sent.
Type two is interfered: for the node of successfully decoded: (being received prominent as signal source) according to signal power
With reception general power, jamming power is determined.If jamming power is higher than pre-determined threshold, reported.Here jamming power
Thresholding setting depends on channel model, the transmission power of communication requirement and node.Basic principle is to be inferred to do by jamming power
Distance of the node (multiple interfering nodes are superposed to an interfering nodes) apart from receiving node is disturbed, the receiving node itself is to interference
Node is also to have communication requirement, i.e., the distance of the two is in the range of communication.
Application scenarios: just for there is the user that solution comes out in the time slot (in time/frequency source block), (at most solution comes out one
It is a).Indicate that slightly strong jamming has occurred in this kind of time slots (running time-frequency resource) when node is sent.
It is thus preferable to carry out bottom layer treatment to each reception resource, specifically include:
Resource is received by bottom measurement for each, judges whether collided in the resource, when determining the money
When source collides, determine that the occupied state of the resource of this node perceived is to be collided.
It is measured preferably, receiving resource for each by bottom, judges whether collided in the resource, specifically
Include:
For each reception resource, such as the FI decoding failure that is received in the resource (including free timeslot): if pass through letter
Number with interference and noise ratio SINR, and reception general power, judge whether the resource is that strongly disturbing collision resource has occurred；Or
Person judges whether the resource is that strongly disturbing collision resource has occurred by jamming power；
For each reception resource, such as successfully decoded in the FI that is received in the resource, then: should by jamming power judgement
Whether resource is that strongly disturbing collision resource has occurred.
The two is implemented in combination with mode:
No matter jumping this time slot state that neighbors obtains by one before is what, preferential with bottom measurement, is recorded as touching
It hits (strong jamming), and this information is forwarded.
Specific Principles are as follows:
For some time slot, if the bottom measurement of this node is judged to colliding, no matter other nodes are to the height of the time slot
Which kind of state layer instruction (being indicated by the Time Slot Occupancy status information in FI) is, determines final perception of this node to this time slot
State is collision.
For some time slot, if the measurement of this node bottom determines non-collision, and this node is to the perception shape of this time slot
State is that a jump neighbors occupies (this node successfully decoded), is designated as colliding to the high level of the time slot if receiving other nodes,
Determine that this node is collision to the final perception state of this time slot.
Embodiment 1: bottom measurement: determine collision
It indicates that time slot has interference by two class bottom measurements, determines that there are time slot collisions for the time slot.Such as there are three
A node, respectively node A, node B, node C.
Assuming that being less than node B at a distance from node B and node A at a distance from node C:
Node A and node C occupies identical resource, and node B detects egress A, but can be determined that present pattern two simultaneously
Interference (according to signal power and receiving general power, determine jamming power, and jamming power is higher than determining threshold value).
In this case, node B indicates that the resource has slightly strong jamming.
Assuming that node B is at a distance from node A, equal to node B at a distance from node C:
In this case, node B may no one solution come out, while determining that the interference of present pattern one (can be with
Determined by the relative size of SINR and reception general power, for example receiving general power is more than certain thresholding, but SINR is less than
Certain thresholding；It can also be determined by the value of jamming power, for example (be received prominent as signal according to signal power
Source) and general power is received, jamming power is determined, if jamming power is higher than some thresholding), indicate strong jamming.
Strong jamming is handled according to collision in feedback, is negative-feedback.
This kind is detected, it is to need to pass through FI that it is the same for, which determining collision by STI with existing scheme interior joint,
It sends.And these two types are collided in practical transmission process without any differentiation and difference.
It is also the same in basic status transfer.
Embodiment 2: remove STI, the transmitting of slot occupancy information.Such as there are four nodes, respectively node A, node
B, node C and node D.
Where it is assumed that node A and node B, node B and node C, node C and node D one jump neighbors each other.Node A,
B, C, D occupy time slot 1,2,3,4. respectively
Node A sends in FI message and does not indicate that specific STI.
Node B, which is sent, indicates that jumping neighbors by one on time slot 1 occupies in FI.
After node C receives the information of node B, it is known that time slot 1 is occupied by two hop nodes.
Node C instruction time slot 1 is occupied by a double bounce neighbors, and time slot 2 is occupied by one one jump neighbors.
Node D knows following information after receiving the information of node C: time slot 1 is occupied by one three jump neighbors, time slot 2
It is occupied by one two jump neighbors, time slot 3 is occupied by one one jump neighbors.
When node D sends FI information, instruction time slot 2 is occupied by one two jump neighbors, and time slot 3 is by one one jump neighbors
It occupies.
The transmitting of time slot state, the selection for time slot.
Embodiment 3: bottom measurement and the high-rise processing combined to collision status.Such as it there are five nodes, respectively saves
Point A, node B, node C, node D and node E.
Node C and node A occupies time slot 1, and node D and node B occupy other time interval resource respectively.It is assumed that node B is accounted for
With No. 2 time slots, node D occupies No. 3 time slots.Node E occupies No. 4 time slots.
Node B and node C is a jump neighbors of node D.
Node D and node E one jumps neighbors each other.
Time slot 1:
Node A and node C sends message in time slot 1 simultaneously:
Node D be correctly decoded node C transmission information, i.e., measured according to bottom, not present pattern and interference (tool
Body determines which is not described herein again with embodiment 1), i.e., there is no determine to collide.
Node B detects the interference of 1 present pattern 1 of time slot by bottom, and it is (specific to determine with implementation to determine that there are strong jammings
Example 1, which is not described herein again), it is collided.
Any one signal is not successfully decoded since apart from node A, C is distant in node E, does not have to determine to touch yet
It hits.
Time slot 2:
Node B sends message instruction time slot 1 and is collided.
Node D will be updated the internal time slot state of node A just after receiving this message as collision, and send in FI message
Going out, (bottom measurement instruction is not collided, but high-rise instruction is collided, and record time slot 1 is to be jumped by one to node D originally
Neighbour occupies).
Node E does not receive this information due to distant apart from node B.
Time slot 3:
Node D sends information instruction time slot 1 and collides.
Node E can be correctly decoded the information of node D transmission, but since node E is recorded as the free time to time slot 1, here
The change of time slot state is not done.
If being further added by node: F, node F uses time slot 1.
If node F and E can mutually hear that F cannot hear D.F uses time slot 1.
Time slot 1:
It is that a jump neighbors occupies that node F, which records time slot 1,.
It is that a jump neighbors occupies that node D, which also records time slot 1,.
Time slot 2:
Node B sends message instruction time slot 1 and is collided.
Node D will be updated the internal time slot state of node A just after receiving this message as collision, and send in FI message
Going out, (bottom measurement instruction is not collided, but high-rise instruction is collided, and record time slot 1 is to be jumped by one to node D originally
Neighbour occupies).
Time slot 3:
Node D sends information instruction time slot 1 and collides.
Node E can be correctly decoded the information of node D transmission, and be recorded as jump neighbour to time slot 1, and node D is received
It will be updated the internal time slot state of node A after this message just as collision, and send that (bottom measurement instruction does not have in FI message
There is collision, but high-rise instruction is collided, and record time slot 1 is to jump adjacent occupy by one to node D originally).
Referring to Fig. 6, a kind of transmitting device of frame information FI provided in an embodiment of the present invention, comprising:
Determination unit 11 perceives every for determining the FI for needing to send on sending resource including this node
The occupancy information of a time slot, the occupancy information of each time slot do not include occupying the node of the time slot corresponding to face
When resource identification STI information；
Transmission unit 12, for sending the FI.
Preferably, the occupancy information of each time slot includes the Time Slot Occupancy status information of the time slot.
Referring to Fig. 7, the transmitting device of another kind frame information FI provided in an embodiment of the present invention, comprising:
Receiving unit 21, for receiving FI in each reception resource, including send the FI node perceived to
The occupancy information of each time slot, the occupancy information of each time slot do not include occupy the time slot node it is corresponding
Temporary resource identifies STI information；
Processing unit 22, for carrying out bottom layer treatment to each reception resource.
Preferably, the processing unit, is specifically used for:
Resource is received by bottom measurement for each, judges whether collided in the resource, when determining the money
When source collides, determine that the occupied state of the resource of this node perceived is to be collided.
Preferably, the processing unit, receives resource for each and is measured by bottom, judge whether send out in the resource
When having given birth to collision, it is specifically used for:
For each reception resource, such as the FI decoding failure that is received in the resource: if by signal and interference and noise
Than SINR, and general power is received, judges whether the resource is that strongly disturbing collision resource has occurred；Alternatively, passing through jamming power
Judge whether the resource is that strongly disturbing collision resource has occurred；
For each reception resource, such as successfully decoded in the FI that is received in the resource, then: should by jamming power judgement
Whether resource is that strongly disturbing collision resource has occurred.
Preferably, the processing unit, measures when by bottom, determining a resource, there is no being also used to when collision: when
When the resource jumps neighbors occupancy by itself one, if the resource occupation status information in the FI received indicates that the resource occurs
Collision then finally determines that the occupied state of the resource of this node perceived is to have occurred to collide the resource.
Preferably, the device further includes the receiving unit and processing unit.I.e. same device, it can as transmission
Node can also be used as receiving node.
Referring to Fig. 8, the transmitting device of the third frame information FI provided in an embodiment of the present invention, comprising:
Processor 600 executes following process for reading the program in memory 620:
The FI for needing to send on sending resource is determined, including the occupancy for each time slot that this node perceives
Information, the occupancy information of each time slot do not include the corresponding temporary resource mark STI letter of node for occupying the time slot
Breath；
Control transceiver 610 sends the FI.
Preferably, the occupancy information of each time slot includes the Time Slot Occupancy status information of the time slot.
In addition, the processor 600, can be also used for:
In each reception resource control transceiver 610 receive FI, including send the FI node perceived to it is every
The occupancy information of a time slot, the occupancy information of each time slot do not include occupying the node of the time slot corresponding to face
When resource identification STI information；
Bottom layer treatment is carried out to each reception resource.
Preferably, the processor 600 carries out bottom layer treatment to each reception resource, specifically include:
Resource is received by bottom measurement for each, judges whether collided in the resource, when determining the money
When source collides, determine that the occupied state of the resource of this node perceived is to be collided.
It is measured preferably, the processor 600 receives resource for each by bottom, judges whether send out in the resource
Collision has been given birth to, has been specifically included:
For each reception resource, such as the FI decoding failure that is received in the resource: if by signal and interference and noise
Than SINR, and general power is received, judges whether the resource is that strongly disturbing collision resource has occurred；Alternatively, passing through jamming power
Judge whether the resource is that strongly disturbing collision resource has occurred；
For each reception resource, such as successfully decoded in the FI that is received in the resource, then: should by jamming power judgement
Whether resource is that strongly disturbing collision resource has occurred.
Preferably, measuring when by bottom, determining a resource, there is no when collision, the processor 600 is also used to:
When the resource, which jumps neighbors by itself one, to be occupied, if the resource occupation status information in the FI received indicates
The resource is collided, then finally determines that the occupied state of the resource of this node perceived is to have occurred to collide the resource.
Transceiver 610, for sending and receiving data under the control of processor 600.
Wherein, in fig. 8, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 600
The various circuits for the memory that the one or more processors and memory 620 of representative represent link together.Bus architecture is also
Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can be linked together, these are all
It is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 610 can
To be multiple element, that is, includes transmitter and receiver, the list for communicating over a transmission medium with various other devices is provided
Member.For different user equipmenies, user interface 630, which can also be, external the interface for needing equipment is inscribed, and connection is set
Standby including but not limited to keypad, display, loudspeaker, microphone, control stick etc..
Processor 600, which is responsible for management bus architecture and common processing, memory 620, can store processor 600 and is holding
Used data when row operation.
In conclusion when Time Slot Occupancy state forwards, remove corresponding node STI mark in the embodiment of the present invention,
I.e. a kind of fuzzy occupancy.The judgement of time slot collision is realized by bottom measurement, and carries out corresponding condition conversion.Decoding
Still interference volume is bigger for fail and successfully decoded, collectively as collision time slot, carries out state forwarding.Time slot is touched
The judgement hit takes bottom measurement and the high-rise intersection for determining the two.Once one way in which judgement is collided, decide that
This time slot is collided.The forwarding of Time Slot Occupancy state, mainly specific hop count information and a kind of fuzzy occupancy.Cause
This, technical solution provided in an embodiment of the present invention significantly reduces expense, and basic guarantee system performance.Reduced expense can be into one
Step is used for the capacity (frequency division) of lifting system.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (12)
1. a kind of transmission method of frame information FI, which is characterized in that this method comprises:
It determines the FI for needing to send on sending resource, believes including the occupancy for each resource that this node perceives
Breath, the occupancy information of each resource do not include occupying the corresponding temporary resource mark STI information of node of the resource；
Wherein, the resource is time slot or time frequency block；
The FI is sent, so that peer node receives the FI in each reception resource, and bottom is carried out to each reception resource
Layer processing, the bottom layer treatment specifically include: receiving resource for each and are measured by bottom, judge whether send out in the resource
Collision is given birth to.
2. the method according to claim 1, wherein the occupancy information of each resource includes the resource
Resource occupation status information.
3. a kind of transmission method of frame information FI, which is characterized in that this method comprises:
Receive FI in each reception resource, including send the FI node perceived to each resource occupancy believe
Breath, the occupancy information of each resource do not include occupying the corresponding temporary resource mark STI information of node of the resource；
Bottom layer treatment is carried out to each reception resource；Wherein, the resource is time slot or time frequency block；Wherein, each reception is provided
Source carries out bottom layer treatment, specifically includes:
Resource is received for each to measure by bottom, judges whether collided in the resource.
4. according to the method described in claim 3, it is characterized in that, determining the sense of this node when determining that the resource collides
The occupied state for the resource known is to be collided.
5. according to the method described in claim 4, being measured it is characterized in that, receiving resource for each by bottom, judgement
Whether collided, specifically included in the resource:
For each reception resource, such as the FI decoding failure that is received in the resource: if by signal and interference and noise ratio
SINR, and general power is received, judge whether the resource is that strongly disturbing collision resource has occurred；Alternatively, being sentenced by jamming power
Whether the resource of breaking is that strongly disturbing collision resource has occurred；
For each reception resource, such as successfully decoded in the FI that is received in the resource, then: the resource is judged by jamming power
It whether is that strongly disturbing collision resource has occurred.
6. the method according to claim 3 or 5, which is characterized in that when by bottom measure, determine a resource there is no
When collision, this method further include:
When the resource, which jumps neighbors by itself one, to be occupied, if the resource occupation status information in the FI received indicates the money
Source is collided, then finally determines that the occupied state of the resource of this node perceived is to have occurred to collide the resource.
7. a kind of transmitting device of frame information FI, which is characterized in that the device includes:
Determination unit, for determining the FI for needing to send on sending resource, each resource perceived including this node
Occupancy information, the occupancy information of each resource do not include occupy the resource the corresponding temporary resource of node
Identify STI information；Wherein, the resource is time slot or time frequency block；
Transmission unit so that peer node receives the FI in each reception resource, and connects for sending the FI to each
It receives resource and carries out bottom layer treatment, the bottom layer treatment specifically includes: receiving resource for each and measured by bottom, judgement should
Whether collided in resource.
8. device according to claim 7, which is characterized in that the occupancy information of each resource includes the resource
Resource occupation status information.
9. a kind of transmitting device of frame information FI, which is characterized in that the device includes:
Receiving unit, for receiving FI in each reception resource, including send the FI node perceived to each money
The occupancy information in source, the occupancy information of each resource do not include the corresponding interim money of node for occupying the resource
Source identifies STI information；
Processing unit, for carrying out bottom layer treatment to each reception resource；Wherein, the resource is time slot or time frequency block；It is described
Processing unit is specifically used for:
Resource is received for each to measure by bottom, judges whether collided in the resource.
10. device according to claim 9, which is characterized in that when determining that the resource collides, determine the sense of this node
The occupied state for the resource known is to be collided.
11. device according to claim 9, which is characterized in that the processing unit receives resource for each and passes through
Bottom measurement, when judging whether collision to have occurred in the resource, is specifically used for:
For each reception resource, such as the FI decoding failure that is received in the resource: if by signal and interference and noise ratio
SINR, and general power is received, judge whether the resource is that strongly disturbing collision resource has occurred；Alternatively, being sentenced by jamming power
Whether the resource of breaking is that strongly disturbing collision resource has occurred；
For each reception resource, such as successfully decoded in the FI that is received in the resource, then: the resource is judged by jamming power
It whether is that strongly disturbing collision resource has occurred.
12. the device according to claim 9 or 11, which is characterized in that the processing unit measures, really when by bottom
There is no being also used to when collision for a fixed resource: when the resource, which jumps neighbors by itself one, to be occupied, if in the FI received
Resource occupation status information indicate that the resource is collided, then finally determine the occupied state of the resource of this node perceived
The resource is collided to have occurred.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2256993A1 (en) * | 2009-05-29 | 2010-12-01 | Istituto Superiore Mario Boella sulle Technologie dell' Informazione e delle Telecommunicazioni | Method for accessing a communication channel for communication networks |
| CN103248463A (en) * | 2012-02-06 | 2013-08-14 | 电信科学技术研究院 | Frame information transmitting method and equipment |
| CN103378919A (en) * | 2012-04-12 | 2013-10-30 | 电信科学技术研究院 | Frame information (FI) message transmission method and apparatus |
| CN103973387A (en) * | 2013-01-30 | 2014-08-06 | 电信科学技术研究院 | Method and device for maintaining time slot state information |
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2015
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2256993A1 (en) * | 2009-05-29 | 2010-12-01 | Istituto Superiore Mario Boella sulle Technologie dell' Informazione e delle Telecommunicazioni | Method for accessing a communication channel for communication networks |
| CN103248463A (en) * | 2012-02-06 | 2013-08-14 | 电信科学技术研究院 | Frame information transmitting method and equipment |
| CN103378919A (en) * | 2012-04-12 | 2013-10-30 | 电信科学技术研究院 | Frame information (FI) message transmission method and apparatus |
| CN103973387A (en) * | 2013-01-30 | 2014-08-06 | 电信科学技术研究院 | Method and device for maintaining time slot state information |
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