CN106034304B - A kind of implementation method of wireless self-networking - Google Patents
A kind of implementation method of wireless self-networking Download PDFInfo
- Publication number
- CN106034304B CN106034304B CN201510103518.2A CN201510103518A CN106034304B CN 106034304 B CN106034304 B CN 106034304B CN 201510103518 A CN201510103518 A CN 201510103518A CN 106034304 B CN106034304 B CN 106034304B
- Authority
- CN
- China
- Prior art keywords
- cluster
- ptt
- node
- data
- resource
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention proposes a kind of implementation method of wireless self-networking, and the control information being used in cluster between cluster is divided to different zones in wireless frame structure by the wireless self-networking, and the dedicated control zone of all kinds of broadcasting services and data field are marked off in wireless frame structure.The present invention realizes that the pool to different type, service with different priority levels is dispatched, by reserving special control resource-area and data resource-area for high priority broadcast business, realizes the guarantee to service priority by using special frame structure.
Description
Technical field
The present invention relates to wireless communication field more particularly to a kind of implementation methods of wireless self-networking.
Background technique
In disclosed wireless self-organization network seen at present, more typical mature technical solution is to be based on IEEE
802.16 Mesh technology is representative, and Mesh mode Physical Frame Structure is as shown in Figure 1.It include control subframe sum number in radio frames
According to subframe, control subframe in the front end of every frame and occupy scheduled OFDM symbol, inside can be divided into several time slots, remaining symbol
For the symbol of data burst.The fixed RS-CC using QPSK modulation and 1/2 code rate of subframe is controlled to encode.Data burst can be used
Customized modulation coding scheme, but each Mesh frame is not supported to be changed.Radio frames end is reserved protection interval.
In network without center, because there is no central nodes to coordinate, when node transmission data, sending node and receiving node
Between need through consultation or competition mode obtain transmission data resource (bandwidth of transmission and lasting duration etc.).In tradition
Network without center in, which is applied to broadcasting service, such as when PTT (voice broadcast service), to be provided with all neighbors
Source competition is negotiated, it is contemplated that the available resources of all neighbors are difficult to the coordinating and unifying, and a large amount of controls letter in reservation process
Breath may be collided in transmission process, therefore have it is higher be likely to occur resource acquisition failure the case where, efficiency of transmission compared with
It is low.In addition, there is no preferable scheduling mechanism to different types of business in the network without center of mainstream at present, in fact it could happen that in advance
The case where resource that unicast service about occupies is more discrete, causes broadcasting service that can not be reserved also can not to the greatest extent may be used accommodating
Going on smoothly for high-priority service is ensured under the premise of business more than energy.
In addition, the division of all time slots is all in the disclosed wireless ad hoc network systems based on TDMA seen at present
It is similar to the above, protection interval is reserved between each time slot, avoids time slot caused by distance difference and the timing accuracy between node
Collision, but at the same time, each time slot also brings along the reduction of slot efficiency while reservation protection interval, further
Affect the handling capacity of whole system.
Summary of the invention
The present invention proposes a kind of implementation method of wireless self-networking, this method are as follows: the wireless self-networking is in radio frames knot
The control information being used in cluster between cluster is divided to different zones in structure, and marks off all kinds of broadcast services in wireless frame structure
It is engaged in dedicated control zone and data field.
Above-mentioned wireless frame structure can be specific as follows:
The wireless superframe of inter-node communication by control zone in public control zone, cluster and several data and PTT district's groups at,
In,
Public control zone is by synchronization zone, cluster service area, across cluster PTT service instruction area, across cluster routing and control message district's groups
At；Node sends and receives synchronization related information in synchronization zone, and the clock carried out between node is synchronous, and the information of carrying includes at least
Ad hoc network frame structure configuration information；Node sends and receives cluster broadcast message in cluster service area, and the information of carrying includes at least this
Cluster relevant information；Node sends and receives across cluster PTT service instruction information, across cluster data broadcast in across cluster PTT service instruction area
Business indicates information, is respectively used to carry out across cluster PTT service and the resource across cluster data broadcasting service is seized；Node is on across cluster road
By sending and receiving across cluster control information with control message area, across cluster resource reservation and across cluster route messages are included at least；
In cluster control zone by PTT service instruction area in node broadcasts area, cluster, route in cluster and control message district's groups at；Section
Point sends and receives node broadcasts information in node broadcasts area, and the information of carrying includes at least this node related information；Node exists
PTT service instruction area sends and receives PTT service instruction information in cluster, data broadcast service instruction information in cluster in cluster, respectively
Resource for carrying out data broadcast service in PTT service and cluster in cluster is seized；Node routes in cluster and control message area hair
It send and receives and control information in cluster, including at least routing iinformation in resource reservation information in cluster and cluster；
Data are made of with the area PTT several radio frames, and each radio frames are by general data subframe in several clusters, cluster
Broadcast data subframe, across cluster broadcast data subframe, PTT subframe and across cluster PTT subframe composition in cluster；Node is in data and the area PTT
Data and feedback information are sent and received, the feedback information includes retransmission feedback instruction or channel quality indicator or both knot
It closes；Node sends and receives non real-time or real-time unicast service in cluster in general data subframe, broadcast data in cluster
Data broadcast service in cluster is sent and received on frame, sends and receives across cluster data broadcast service in across cluster broadcast data subframe
Business, PTT service in cluster is sent and received in cluster, sends and receives across cluster PTT service in across cluster PTT subframe in PTT subframe.
Preferably, public control zone uses public frequency-hopping mode；Control zone uses frequency-hopping mode in cluster in cluster；Data with
In the area PTT, across cluster business uses public frequency-hopping mode, and business uses frequency-hopping mode in cluster in cluster.Further, node is public
When the enterprising line frequency domain transfer resource of control zone and data and the area PTT selects in control zone, cluster, according to the corresponding frequency-hopping mode in each area
Determine narrowband slice corresponding with sending time point position, the frequency domain money for selecting single transmission to use on the narrowband slice
Source；The frequency domain resource that the single transmission uses is the full frequency band or fractional bandwidth of the narrowband slice, by the narrowband
The frequency domain position that frequency hopping determines the fractional bandwidth is reused in frequency range.Wherein, the frequency-domain transmission resource selection can wrap
It includes: the frequency-domain transmission resource that the business that selection is stated in resource is seized/reserved will use, and selection current transmission business/
The frequency-domain transmission resource that control message uses.
Preferably, for data and the area PTT, as PTT in broadcast data subframe in cluster, across cluster broadcast data subframe, cluster
Frame or across cluster PTT subframe are not occupied by PTT or across cluster PTT service in data broadcasting in corresponding cluster, across cluster data broadcast, cluster
When, selection sends and receives non real-time or real-time unicast service in these subframes.
Above-mentioned specific wireless frame structure can also use following detailed construction:
For public control zone:
Synchronization zone is divided into several synchronization time slots in the time domain, and node selects same for sending itself according to resource dispatching strategy
Walk the time slot of signal and synchronizing channel；Cluster service area is divided into several cluster time slots in the time domain, and node is according to scheduling of resource plan
Slightly select the time slot for sending itself cluster broadcast message；Across cluster PTT service instruction area is by continuous or discrete several in time domain
A across cluster PTT instruction subframe composition, each across cluster PTT instruction subframe is divided into several across cluster PTT instruction time slots and wide across cluster data
Broadcast instruction time slot, node according to resource dispatching strategy selection for sends across the cluster PTT of across cluster PTT instruction information indicate time slot,
Across cluster data broadcast for sending across cluster data broadcast instruction information indicates time slot；Across cluster routing and control message area are by time domain
Upper continuous or discrete several subframes composition, node are selected according to resource dispatching strategy for sending itself across cluster control information
Subframe；
For control zone in cluster:
Node broadcasts area is made of several subframes continuous in time domain, and node is selected according to resource dispatching strategy for sending out
Send the subframe of own node broadcast message；PTT service instruction area is referred to by PTT in several clusters continuous or discrete in time domain in cluster
Showing that subframe forms, PTT indicates that subframe is divided into PTT in several clusters and indicates data broadcasting instruction time slot in time slot and cluster in each cluster,
Node selects to indicate PTT instruction time slot in the cluster of information, for sending in cluster for sending PTT in cluster according to resource dispatching strategy
Data broadcasting indicates that data broadcasting indicates time slot in the cluster of information；Routing and control message area are by continuous or discrete in time domain in cluster
Several subframes composition, node according to resource dispatching strategy select for send in itself cluster control information subframe；
For data and the area PTT:
Be divided into several data bursts in the time domain, node according in public control zone and cluster control zone it is pre- by resource
About and seize the data burst that the resource selection of acquisition uses.
Based on above-mentioned frame structure, the resource dispatching strategy be can be designed so that
Preferably, for the synchronization zone of public control zone, node is selected according to the synchronization hop count of itself for sending itself
The time slot of synchronization signal and synchronizing channel, the isochronous resources that the node of the different hop counts in identical or different cluster uses are in the time domain
Be it is orthogonal, the node of the same number of hops in identical or different cluster uses identical time-domain resource.
Preferably, for the cluster service area of public control zone, node selects to use according to the identity of the cluster of itself subordinate
In the time slot for sending itself cluster broadcast message, being subordinated to the cluster broadcast resource that the nodes of different clusters uses is orthogonal in the time domain
, the node for being subordinated to same cluster uses identical time-domain resource.
Preferably, across the cluster routing for public control zone and control message area, are divided into several subframes in the time domain, in frequency
Several sub-bands are divided on domain, a subframe constitutes a control resource block with a sub-band, and node random selection makes
Control resource block, or the control resource block according to node ID selection static configuration.
Preferably, for the node broadcasts area controlled in cluster, it is divided into several subframes in the time domain, node is according to from cluster
Interior identity selects the subframe for sending own node broadcast message, the node broadcasts resource that different nodes use in cluster
It is orthogonal in the time domain.
Preferably, for routing and control message area in the cluster of control zone in cluster, it is divided into several subframes in the time domain, in frequency
Several sub-bands are divided on domain, a subframe constitutes a control resource block with a sub-band, and node random selection makes
Control resource block, or the control resource block according to node ID selection static configuration.
Preferably, the resource dispatching strategy includes:
(1) the PTT/ data broadcast service across cluster is divided into different groups, the number of group is by system configuration, each group of occupancy
Across the cluster PTT/ data broadcasting instruction time slot and volume of data and across the cluster PTT/ in the area PTT of a series of public control zones broadcast number
According to subframe；Across the cluster PTT/ data broadcasting instruction time slot that different groups uses is orthogonal in the time domain；Different groups use across cluster
PTT/ broadcast data subframe is orthogonal in the time domain；
Node in same group indicates time slot, across cluster PTT/ according to across the cluster PTT/ data broadcasting that business hop-diferented uses
Broadcast data subframe, M jump range within different business hop count node use across cluster PTT/ data broadcasting instruction time slot when
Orthogonal on domain, the node that M jumps other than range is multiplexed across cluster PTT/ data broadcasting instruction time slot in the time domain, identical services hop count
Node indicates time slot using identical across cluster PTT/ data broadcasting；N jump range within different business hop count node use across
Cluster PTT/ broadcast data subframe is orthogonal in the time domain, and the node that N jumps other than range is multiplexed across cluster PTT/ broadcast data in the time domain
Subframe；The node of identical services hop count uses identical across cluster PTT/ broadcast data subframe；M, N is by system configuration, and M, N are greater than etc.
In 2；
(2) resource dispatching strategy that the PTT/ data broadcast service in cluster uses and across the cluster PTT/ data in same group are wide
It is identical to broadcast business.
Preferably, the instruction time slot that node random selection uses carries out across cluster PTT service, across cluster data broadcasting service, cluster
The resource of data broadcast service is seized in interior PTT service and cluster.
Preferably, node carries out across cluster PTT service, wide across cluster data using the instruction time slot of static configuration according to node ID
Broadcast business, the resource of data broadcast service is seized in PTT service and cluster in cluster.
For all frame structures of the invention, two kinds of slot transmission states can also be arranged in node: continuous emission state and
Discontinuous transmission state, continuous emission state indicate to send out on given time slot and protection interval when node occupies continuous slot
Send data；Discontinuous transmission state indicates that node sends data on given time slot, without sending data in protection interval.
Further, the wireless self-networking is TDMA system and uses HARQ mechanism, is divided in wireless frame structure for HARQ feedback
Dedicated time slot, HARQ feedback time slot and data slot correspond；Node can also be in HARQ feedback Slot selection using company
Continuous emission state or discontinuous transmission state.
Compared with the prior art, the advantages of the present invention are as follows: (1) by using special frame structure, realize to inhomogeneity
The pool scheduling of type, service with different priority levels, by reserving special control for high priority broadcast business (data broadcasting and PTT)
The guarantee to service priority is realized in resource-area processed and data resource-area；It (2), can be with by combining frame structure and frequency-hopping mode
Increase considerably the terminal number of system maximum support；(3) by low priority traffice to high priority broadcast data service
The multiplexing in data resource area maximizes power system capacity, promotes communication system energy；(4) by specific resources scheduling strategy, broadcast is realized
The resource reservation of business with seize, solve broadcasting service and the possible conflict of other business；(5) without frame structure change with
And under the premise for not overlapping and colliding between the time slot of guarantee user, by increasing the continuous emission state of node, mention
The slot efficiency of TDMA is risen, to expand the handling capacity of system；In the TDMA wireless frame structure with HARQ feedback, pass through increasing
The continuous emission state for adding feedback node can also promote the performance of feedback or increase the content of feedback.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the Physical Frame Structure figure of the Mesh mode of background of invention；
Fig. 2 is the structural schematic diagram of the wireless superframe of the embodiment of the present invention one；
Fig. 3 is the structural schematic diagram of the public control zone of the wireless superframe of the embodiment of the present invention one；
Fig. 4 is the structural schematic diagram of the synchronization zone of the public control zone of the embodiment of the present invention one；
Fig. 5 is the structural schematic diagram of the cluster service area of the public control zone of the embodiment of the present invention one；
Fig. 6 is that across the cluster PTT of the embodiment of the present invention one indicates the structural schematic diagram of subframe；
Fig. 7 is the structural schematic diagram of control zone in the cluster of the wireless superframe of the embodiment of the present invention one；
Fig. 8 is the structural schematic diagram that PTT indicates subframe in the cluster of the embodiment of the present invention one；
Fig. 9 is the data of the wireless superframe of the embodiment of the present invention one and the structural schematic diagram in the area PTT；
Figure 10 is the frame structure schematic diagram of the TDMA system of the embodiment of the present invention three；
Figure 11 is that the nodes X of the embodiment of the present invention three is configured to the transmitting situation map of discontinuous transmission state；
Figure 12 is that the nodes X of the embodiment of the present invention three is configured to the transmitting situation map of continuous emission state；
Figure 13 is the frame structure schematic diagram of the HARQ feedback time slot of the embodiment of the present invention three；
Figure 14 is that the node Y of the embodiment of the present invention three is configured to the transmitting situation map of discontinuous transmission state；
Figure 15 is that the node Y of the embodiment of the present invention three is configured to the transmitting situation map of continuous emission state.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments；It should be noted that in the absence of conflict, in the application
Embodiment and embodiment in feature can be combined with each other.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Embodiment one
The special wireless frame structure that wireless self-networking uses will be described in detail in the present embodiment.The nothing of inter-node communication
Line superframe is by control zone in public control zone, cluster and several data and PTT district's groups at as shown in Figure 2.
Public control zone is by synchronization zone, cluster service area, across cluster PTT service instruction area, across cluster routing and control message district's groups
At as shown in Figure 3.The present embodiment uses public frequency-hopping mode in public control zone, i.e. the whole network node uses identical frequency hopping mould
(selection of public frequency-hopping mode is a narrowband slice that the whole network node uses to formula, rather than specifically used subcarrier in frequency domain
Position).
Node sends and receives synchronization signal and synchronizing channel in the synchronization zone of public control zone, and synchronization signal is for carrying out
Clock between node is synchronous, and ad hoc network relevant information, including frame structure configuration information etc. are carried in synchronizing channel.The knot of synchronization zone
Structure is as shown in Figure 4.Synchronization zone is divided into several synchronization time slots in the time domain, and node is selected according to the synchronization hop count of itself for sending
The time slot of itself synchronization signal and synchronizing channel, the isochronous resources that the node of the different hop counts in identical or different cluster uses when
Be on domain it is orthogonal, the node of the same number of hops in identical or different cluster uses identical time-domain resource.
Cluster service area of the node in public control zone sends and receives cluster broadcast message, carries this cluster information, including this cluster
Identity etc..The structure of cluster service area is as shown in Figure 5.Cluster service area is divided into several cluster time slots, node root in the time domain
The time slot for sending itself cluster broadcast message is selected according to the identity of the cluster of itself subordinate, the node for being subordinated to different clusters makes
Cluster broadcast resource be in the time domain it is orthogonal, be subordinated to the node of same cluster and use identical time-domain resource.
Node sends and receives across cluster PTT service instruction information, across cluster in across the cluster PTT service instruction area of public control zone
Data broadcast service indicates information, is respectively used to carry out across cluster PTT service and the resource across cluster data broadcasting service is seized.Across cluster
PTT service indicates that area is made of several across cluster PTT instruction subframes continuous or discrete in time domain in public control zone, each across
Cluster PTT instruction subframe is divided into several across cluster PTT instruction time slots and across cluster data broadcast instruction time slot.The present embodiment as shown in fig. 6,
Each public control zone includes that 3 across cluster PTT indicate subframe, when each across cluster PTT instruction subframe is divided into 4 across cluster PTT instructions
Gap and 4 across cluster data broadcast indicate time slot.In Fig. 6, time slot, resource dispatching strategy are as follows: will be across cluster are indicated for across cluster PTT
PTT service be divided into 4 groups (number of group is freely arranged by system), each group of occupancy each 1 of across cluster PTT instruction subframe across
Cluster PTT indicates time slot, occupies 3 across cluster PTT instruction time slots of public control zone altogether；Across the cluster PTT instruction that different groups uses
Time slot is orthogonal in the time domain.Node in same group indicates time slot according to across the cluster PTT that business hop-diferented uses, and 2 jump range
Within across the cluster PT instruction time slot that uses of node of different business hop count orthogonal in the time domain (hop count range is freely set by system
Set), 2 nodes for jumping other than ranges are multiplexed across cluster PTT instruction time slot in the time domain, and the node of identical services hop count uses identical
Across cluster PTT indicates time slot.Similarly, more detailed process can be found in hereafter the resource dispatching strategy of across cluster data broadcast instruction time slot
Description for data and the resource dispatching strategy of across the cluster PTT/ broadcast data subframe in the area PTT.
Node sends and receives control information in across the cluster routing of public control zone and control message area, including routes across cluster
Information, across cluster node geographical location information, across cluster resource reservation information.Across cluster routing and control message area are by public control zone
Continuous or discrete several subframes composition in time domain, and cluster routing is divided into several sub-bands on frequency domain, one across
Cluster controls subframe and constitutes a control resource block with a sub-band, and node randomly chooses the control resource block used.
In cluster control zone by PTT service instruction area in node broadcasts area, cluster, route in cluster and control message district's groups are at such as
Shown in Fig. 7.The present embodiment control zone in cluster uses frequency-hopping mode in cluster, i.e. all nodes in some cluster use identical jump
Frequency mode becomes frequency-hopping mode in the cluster of the cluster, and using frequency-hopping mode in different clusters, (frequency-hopping mode selects different clusters in cluster
It is the narrowband slice that cluster interior nodes use, rather than specifically used subcarrier in frequency domain position).
Node node broadcasts area of control zone in cluster sends and receives node broadcasts information, and the information of carrying includes at least
This node related information.Node broadcasts area is made of several subframes continuous in time domain in control zone in cluster, and node is according to certainly
Identity in cluster selects the subframe for sending own node broadcast message, and the node that different nodes use in cluster is wide
It is orthogonal for broadcasting resource in the time domain.
PTT service instruction area sends and receives PTT service instruction information in cluster, in cluster to node in the cluster of control zone in cluster
Data broadcasting indicates information, and the resource for being respectively used to carry out data broadcast service in PTT service and cluster in cluster is seized.PTT in cluster
Business indicates that area indicates that subframe forms by PTT in several clusters discrete in time domain in control zone in cluster；PTT is indicated in each cluster
Subframe is divided into PTT in several clusters and indicates that data broadcasting instruction time slot, frame structure are as shown in Figure 8 in time slot and several clusters.
Time slot is indicated for PTT in cluster, control zone includes PTT instruction subframe, scheduling of resource plan in 3 clusters in each cluster
Slightly: node is according to PTT service hop count selection in itself cluster for when sending that PTT indicates that PTT is indicated in the cluster of information in cluster
Gap, PTT instruction time slot is orthogonal in the time domain in the cluster that the nodes of PTT service hop count use in different clusters within 2 jump ranges, and 2 jump
PTT indicates time slot in multiplexing cluster in the time domain for node other than range, and the node of PTT service hop count uses identical in same cluster
PTT indicates time slot in cluster.Data broadcasting indicates the resource dispatching strategy of time slot similarly in cluster.
Routing and control message area send and receive control information to node in the cluster of control zone in cluster, including route in cluster
Information, resource reservation information in cluster.If routing and control message area are by continuous or discrete in time domain in control zone in cluster in cluster
Dry subframe composition.Routing and control message area are being divided into several sub-bands on frequency domain in cluster, a subframe with one
Sub-band constitutes a control resource block, and node randomly chooses the control resource block used.
Node sends and receives data and feedback information in data and the area PTT, and the feedback information is by node according to data
It constructs with the state for receiving data in the area PTT, is combined comprising retransmission feedback instruction or channel quality indicator or both.Data with
The area PTT is made of several radio frames, each radio frames by broadcast data subframe in general data subframe in several clusters, cluster,
PTT subframe and across cluster PTT subframe composition in across cluster broadcast data subframe, cluster, as shown in figure 9, each data and the area PTT include 3
A radio frames, each radio frames include 4 across cluster PTT subframes.In data and the area PTT, across cluster business uses public frequency-hopping mode,
Business uses frequency-hopping mode in cluster in cluster.Node according in public control zone and cluster control zone obtained by resource reservation and seizing
The data burst that the resource selection obtained uses.
Node sends and receives non real-time or real-time unicast service in cluster in general data subframe, using in cluster internal control
Area processed passes through the time-domain resource that resource reservation relevant information is reserved.
Node sends and receives data broadcast service in cluster in cluster in broadcast data subframe, send out in PTT subframe in cluster
PTT service in cluster is sent and received, across cluster data broadcasting service is sent and received in across cluster broadcast data subframe, in across cluster PTT
Across cluster PTT service is sent and received in subframe, using the control zone in cluster and public control zone by resource seize acquisition when
Domain resource.
For across cluster PTT subframe, acquisition time-domain resource, resource dispatching strategy are seized by resource in public control zone
Are as follows: the PTT service across cluster is divided into 4 groups, 1 across cluster PTT subframe of each radio frames in each group of occupancy data and the area PTT,
3 across cluster PTT subframes are occupied altogether, and across the cluster PTT subframe that different groups uses is orthogonal in the time domain.Node in same group according to
Across the cluster PTT subframe that business hop-diferented uses, across the cluster PTT subframe that 2 nodes for jumping different business hop count within ranges use
Orthogonal in the time domain, the node other than 2 jump ranges is multiplexed across cluster PTT subframe in the time domain, and the node of identical services hop count uses
Identical across cluster PTT subframe (if each data and the area PTT include 3 radio frames in system, each radio frames include 4k across
Cluster PTT subframe, k are greater than 1, then k across cluster PTT subframes of each group of each radio frames of occupancy can be set into system, occupy altogether
3k across cluster PTT subframes, across the cluster PTT subframe that the node that 3k-1 jumps different business hop count within range uses is in the time domain just
It hands over).It is specific as shown in Figure 9:
(1) in even frame SF0, organize 0 PTT service source node use it is wireless in each area in data and the area PTT 0~3
Across the cluster PTT subframe of group 0 in frame 0 sends PTT service data message 1 (1 jumps)；
(2) 2 hop node of PTT receives above 1 in SF0 and jumps PTT service data, in each area in data Yu the area PTT 0~3
Across the cluster PTT subframe of group 0 forwarding PTT service data message 1 in radio frames 1 (2 jump)；
(3) 3 hop node of PTT receives above 2 in SF0 and jumps PTT service data, in each area in data Yu the area PTT 0~3
Across the cluster PTT subframe of group 0 forwarding PTT service data message 1 in radio frames 2 (3 jump)；
(4) in subsequent odd-numbered frame SF1, the business source node for organizing 0 sends (the next PTT of PTT service data message 2
Business datum message packet), use across the cluster PTT subframe of group 0 in radio frames 0 in each area in data and the area PTT 0~3 (1 jumps)；
At the same time, 4 hop node of PTT receives the PTT service data message 1 of 3 jump PTT node forwardings in step 3 in SF0, SF1's
Across the cluster PTT subframe of group 0 forwarding PTT service data message 1 in each area in data and the area PTT 0~3 in radio frames 0 (4 jump).
1 hop node and 4 hop nodes have substantially used identical time-domain resource at this time, and transmission is different two data packets, is formed
Resource multiplex；Similarly, PTT2 hop node forwarding data packets 2,5 hop node forwarding data packets 1 of PTT, equally using identical
Time-domain resource.PTT3 is jumped, 6 hop nodes and so on.
For across cluster broadcast data subframe, the resource dispatching strategy phase of resource dispatching strategy and above-mentioned across cluster PTT subframe
Together.
For PTT subframe in cluster, acquisition time-domain resource, resource dispatching strategy are seized by resource in control zone in cluster
Are as follows: node jumps within ranges that PTT service is jumped in different clusters according to PTT subframe in PTT service hop count selection cluster in itself cluster, 2
PTT subframe is orthogonal in the time domain in the cluster that several nodes uses, and 2 jump node other than ranges subframe in multiplexing cluster in the time domain,
The node of PTT service hop count uses subframe in identical cluster in same cluster.The resource dispatching strategy of data burst is similarly in cluster.
When PTT subframe or across cluster PTT subframe are not corresponded in broadcast data subframe in cluster, across cluster data broadcast sub-frame, cluster
Cluster in data broadcasting, across cluster data broadcast, when PTT or across cluster PTT service occupies in cluster, can also be sent in the above subframe
With receive non real-time or real-time unicast service.Use the time domain that control zone is reserved by resource reservation relevant information in cluster
Resource.
Node in the above frame structure each area (including synchronization zone, cluster service area, node broadcasts area, across in cluster/cluster
PTT indicates area, across routing in cluster/cluster and the control information area, data and the area PTT) on when transmitting signal, for business data transmission
When the frequency domain resource that uses answered if stating the frequency domain resource position that corresponding business uses in resource reservation or in seizing before this
Use the frequency domain resource stated before this；In other situations, sending node can voluntarily frequency domain resource selected to use.Node selection
The frequency domain resource used is transmitted (to use including the frequency-domain transmission resource that selection current transmission business/control message uses, and selection
The frequency-domain transmission resource that the business stated in seizing/reserving in resource will use) when, according to corresponding frequency-hopping mode determine with
The corresponding narrowband slice position of sending time point, the frequency domain resource for selecting single transmission specifically used on the narrowband slice.Its
In, when selecting specifically used frequency domain resource, frame structure supporting node selects whole narrow band bandwidths, i.e., skips in frequency hopping narrow
It is sent in band frequency range using full frequency band；Also the fractional bandwidth using the narrowband slice is supported.It can be by narrowband frequency
The frequency domain position that frequency hopping determines the fractional bandwidth used is reused in section, the advantage is that, when multiple sections in communication range
When time domain forms and conflicts, by the frequency hopping on frequency domain, multiple nodes may be implemented same in the resource that point selection is used for transmission
Different subcarrier in frequency domain is used in one subframe or time slot, to reduce performance loss caused by conflict.
Above-mentioned node is narrow by frequency-hopping mode used in frequency hopping narrowband slice selected to use, and what is selected on broadband
With frequency-hopping mode used in frequency hopping subcarrier selected to use is passed through in frequency range, the two is independent from each other.Frequency-hopping mode uses
Strategy include that pseudorandom, the frequency pattern being pre-configured according to node ID distribution, the whole network are calculated according to node ID using identical
Frequency pattern but frequency hopping initial position etc. is allocated in advance according to node ID.
The present embodiment will be used for the control information of different range (cluster in/cluster between) across point to different zones in the frame structure,
And different cluster interior nodes are realized using isolation of the resource in time domain and/or frequency domain, to reduce node transmission in conjunction with frequency hopping
Information is controlled in the conflict of time domain, increases the interstitial content of ad hoc network support.All kinds of broadcasting services are marked off in the frame structure
Dedicated control zone and data field can be to avoid to complete resource reservation on dedicated control zone in conjunction with resource dispatching strategy
The multinode occurred in the data broadcast service booking-mechanism for having feedback generates the case where a large amount of feedback informations, and the number without feedback
Influence caused by collision according to the data service and other business that are likely to occur in broadcasting service booking-mechanism to neighbors；Also
The unicast service occupancy excessively discrete reservation for leading to broadcasting service of time-domain resource is avoided to fail.In addition, by broadcasting service
The data area used is multiplexed, and maximizes power system capacity, and enhance system flexibility.
Embodiment two
PTT service refers in cluster in across cluster PTT service instruction area, cluster in public control zone in frame structure in control zone
Show and divides into that several across cluster PTT instruction time slots, across cluster data broadcast instruction time slot, PTT indicates that data are wide in time slot and cluster in cluster
Broadcast instruction time slot.The difference between this embodiment and the first embodiment lies in:
Node can be randomly selected in across the cluster PTT service of instruction time slot progress, across cluster data broadcasting service, cluster used
The resource of data broadcast service is seized in PTT service and cluster；
Node can also carry out across cluster PTT service, wide across cluster data using the instruction time slot of static configuration according to node ID
Broadcast business, the resource of data broadcast service is seized in PTT service and cluster in cluster.
Embodiment three
The wireless self-networking of the present embodiment is TDMA system, can reserve one section of Guard between each time slot in TDMA system
(protection interval), as shown in Figure 10, it is therefore an objective to prevent the user of different location from avoiding time slot when sending in adjacent time-slots
Collision, if time slot collision will not occur, therefore can be by intermediate protection when single user occupies continuous slot
Interval is used as available symbols, fully utilizes, to achieve the purpose that lifting system efficiency.The present embodiment is based on this think of
Think, defines two kinds of slot transmission two states: continuous emission state and discontinuous transmission state, wherein continuous emission state table
Showing can send when node occupies continuous slot on set time slot, can also be between former and later two time slots
Data are sent on Guard；Discontinuous transmission state indicates that node emits according to normal structure of time slot, sends on normal time slot
Data, without sending data on the Guard between time slot.Then nodes X is configured to the transmitting situation of discontinuous transmission state
As shown in figure 11, nodes X be configured to continuous emission state transmitting situation it is as shown in figure 12.
In addition, the present embodiment additionally uses HARQ (Hybrid Automatic to realize relatively reliable transmission
Repeat reQuest) mechanism, dedicated time slot is divided for HARQ feedback in wireless frame structure, shorter HARQ feedback is set
Time slot and data slot correspond, and as shown in figure 13, wherein H1 ..., HN represent each HARQ feedback channel, and N is to send section
The number of time slots that point X connection occupies.Then when sending node uses discontinuous transmission state, receiving node Y is in HARQ feedback
Gap also uses discontinuous transmission state, as shown in figure 14；When sending node uses continuous emission state, receiving node Y exists
HARQ feedback time slot also uses continuous emission state, as shown in figure 15.
In the present embodiment, for sending node, continuously transmit can be transmitted under state more data obtain it is higher
Data rate, or obtain high reliability using compared with low bit- rate transmission；For receiving node, it can use lower
Code rate improves the accuracy of feedback, or additionally can carry some other feedback informations, to facilitate transmitting terminal better
It is scheduled.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (16)
1. a kind of implementation method of wireless self-networking, it is characterised in that:
The control information being used in cluster between cluster is divided to different zones in wireless frame structure by the wireless self-networking, and
The dedicated control zone of all kinds of broadcasting services and data field are marked off in wireless frame structure；
The wireless frame structure is specific as follows:
The wireless superframe of inter-node communication by control zone in public control zone, cluster and several data and PTT district's groups at, wherein
Public control zone by synchronization zone, cluster service area, across cluster PTT service instruction area, across cluster routing and control message district's groups at；Section
Point sends and receives synchronization related information in synchronization zone, and the clock carried out between node is synchronous, and the information of carrying is included at least from group
Net frame structure configuration information；Node sends and receives cluster broadcast message in cluster service area, and the information of carrying includes at least this cluster phase
Close information；Node sends and receives across cluster PTT service instruction information, across cluster data broadcasting service in across cluster PTT service instruction area
It indicates information, is respectively used to carry out across cluster PTT service and the resource across cluster data broadcasting service is seized；Node in across cluster routing and
Control message area sends and receives across cluster control information, includes at least across cluster resource reservation and across cluster route messages；
In cluster control zone by PTT service instruction area in node broadcasts area, cluster, route in cluster and control message district's groups at；Node exists
Node broadcasts area sends and receives node broadcasts information, and the information of carrying includes at least this node related information；Node is in cluster
PTT service instruction area sends and receives PTT service instruction information in cluster, data broadcast service instruction information in cluster, is respectively used to
The resource for carrying out data broadcast service in PTT service and cluster in cluster is seized；Node routed in cluster and control message area send and
It receives and controls information in cluster, including at least routing iinformation in resource reservation information in cluster and cluster；
Data are made of with the area PTT several radio frames, and each radio frames in general data subframe in several clusters, cluster by broadcasting
Data burst, across cluster broadcast data subframe, PTT subframe and across cluster PTT subframe composition in cluster；Node is sent in data and the area PTT
With reception data and feedback information, the feedback information includes that retransmission feedback instruction or channel quality indicator or both combine；Section
Point sends and receives non real-time or real-time unicast service in cluster in general data subframe, send out in broadcast data subframe in cluster
Data broadcast service in cluster is sent and received, across cluster data broadcasting service is sent and received in across cluster broadcast data subframe, in cluster
PTT service in cluster is sent and received in interior PTT subframe, sends and receives across cluster PTT service in across cluster PTT subframe.
2. according to the method described in claim 1, it is characterized by:
Public control zone uses public frequency-hopping mode；Control zone uses frequency-hopping mode in cluster in cluster；In data and the area PTT, across cluster
Business uses public frequency-hopping mode, and business uses frequency-hopping mode in cluster in cluster.
3. according to the method described in claim 2, it is characterized by:
Node is when the enterprising line frequency domain transfer resource of control zone and data and the area PTT selects in public control zone, cluster, according to each area
Corresponding frequency-hopping mode determines narrowband slice corresponding with sending time point position, selects single transmission on the narrowband slice
The frequency domain resource used；
The frequency domain resource that the single transmission uses is the full frequency band or fractional bandwidth of the narrowband slice, by the narrowband
The frequency domain position that frequency hopping determines the fractional bandwidth is reused in frequency range.
4. according to the method described in claim 3, it is characterized by:
The frequency-domain transmission resource selection includes: the frequency-domain transmission for selecting the business stated in resource is seized/reserved that will use
Resource, and the frequency-domain transmission resource that selection current transmission business/control message uses.
5. according to the method described in claim 1, it is characterized by:
For data and the area PTT, as PTT subframe or across cluster PTT in broadcast data subframe in cluster, across cluster broadcast data subframe, cluster
When subframe is not occupied by PTT or across cluster PTT service in data broadcasting in corresponding cluster, across cluster data broadcast, cluster, select at these
Non real-time or real-time unicast service is sent and received in subframe.
6. according to the method described in claim 1, it is characterized by:
For public control zone:
Synchronization zone is divided into several synchronization time slots in the time domain, and node selects to believe for sending itself and synchronizing according to resource dispatching strategy
Number and synchronizing channel time slot；Cluster service area is divided into several cluster time slots in the time domain, and node is selected according to resource dispatching strategy
Select the time slot for sending itself cluster broadcast message；Across cluster PTT service instruction area by continuous or discrete several in time domain across
Cluster PTT indicates subframe composition, and each across cluster PTT instruction subframe is divided into several across cluster PTT instruction time slots and across cluster data broadcast refers to
Show time slot, node is according to resource dispatching strategy selection for sending across the cluster PTT instruction time slot of across cluster PTT instruction information, being used for
Across the cluster data broadcast for sending across cluster data broadcast instruction information indicates time slot；Across cluster routing and control message area in time domain by connecting
Continuous or discrete several subframes composition, node select the son for sending itself across cluster control information according to resource dispatching strategy
Frame；
For control zone in cluster:
Node broadcasts area is made of several subframes continuous in time domain, and node is selected according to resource dispatching strategy for sending certainly
The subframe of body node broadcasts information；PTT service instruction area indicates son by PTT in several clusters continuous or discrete in time domain in cluster
Frame forms, and PTT indicates that subframe is divided into PTT in several clusters and indicates data broadcasting instruction time slot, node in time slot and cluster in each cluster
PTT instruction time slot in the cluster of information is indicated, for sending data in cluster for sending PTT in cluster according to resource dispatching strategy selection
Data broadcasting indicates time slot in the cluster of broadcast instruction information；If routing and control message area are by continuous or discrete in time domain in cluster
Dry subframe composition, node are selected according to resource dispatching strategy for sending the subframe for controlling information in itself cluster；
For data and the area PTT:
Be divided into several data bursts in the time domain, node according in public control zone and cluster control zone by resource reservation and
Seize the data burst that the resource selection of acquisition uses.
7. according to the method described in claim 6, it is characterized in that, the resource dispatching strategy includes:
For the synchronization zone of public control zone, node is selected according to the synchronization hop count of itself for sending itself synchronization signal and same
The time slot of channel is walked, the isochronous resources that the node of the different hop counts in identical or different cluster uses are orthogonal, phase in the time domain
The node of same number of hops in same or different clusters uses identical time-domain resource.
8. according to the method described in claim 6, it is characterized in that, the resource dispatching strategy includes:
For the cluster service area of public control zone, node is selected according to the identity of the cluster of itself subordinate for sending itself cluster
The time slot of broadcast message, be subordinated to the cluster broadcast resource that the nodes of different clusters uses be in the time domain it is orthogonal, be subordinated to identical
The node of cluster uses identical time-domain resource.
9. according to the method described in claim 6, it is characterized in that, the resource dispatching strategy includes:
Across cluster routing and control message area for public control zone, are divided into several subframes in the time domain, are divided on frequency domain
Several sub-bands, a subframe constitute a control resource block, the control money that node random selection uses with a sub-band
Source block, or the control resource block according to node ID selection static configuration.
10. according to the method described in claim 6, it is characterized in that, the resource dispatching strategy includes:
For the node broadcasts area controlled in cluster, it is divided into several subframes in the time domain, node is according to the identity mark certainly in cluster
Know and select subframe for sending own node broadcast message, the node broadcasts resource that difference nodes use in cluster is in the time domain just
It hands over.
11. according to the method described in claim 6, it is characterized in that, the resource dispatching strategy includes:
For routing and control message area in the cluster of control zone in cluster, it is divided into several subframes in the time domain, is divided on frequency domain
Several sub-bands, a subframe constitute a control resource block, the control money that node random selection uses with a sub-band
Source block, or the control resource block according to node ID selection static configuration.
12. according to the method described in claim 6, it is characterized in that, the resource dispatching strategy includes:
(1) the PTT/ data broadcast service across cluster is divided into different groups, the number of group is by system configuration, each group of one system of occupancy
Arrange across the cluster PTT/ data broadcasting instruction time slot of public control zone and across cluster PTT/ broadcast data of volume of data and the area PTT
Frame；Across the cluster PTT/ data broadcasting instruction time slot that different groups uses is orthogonal in the time domain；Across the cluster PTT/ that different groups uses
Broadcast data subframe is orthogonal in the time domain；
Across cluster PTT/ data broadcasting instruction time slot, across the cluster PTT/ that node in same group is used according to business hop-diferented are broadcasted
Data burst, across the cluster PTT/ data broadcasting instruction time slot that the node that M jumps different business hop count within range uses is in the time domain
Orthogonal, the node that M jumps other than range is multiplexed across cluster PTT/ data broadcasting instruction time slot, the node of identical services hop count in the time domain
Time slot is indicated using identical across cluster PTT/ data broadcasting；N jump range within different business hop count node use across cluster
PTT/ broadcast data subframe is orthogonal in the time domain, and the node that N jumps other than range is multiplexed across cluster PTT/ broadcast data in the time domain
Frame；The node of identical services hop count uses identical across cluster PTT/ broadcast data subframe；M, N is more than or equal to by system configuration, M, N
2；
(2) across the cluster PTT/ data broadcasting industry in the resource dispatching strategy that the PTT/ data broadcast service in cluster uses and same group
It is engaged in identical.
13. according to the method described in claim 6, it is characterized in that, the resource dispatching strategy includes:
The instruction time slot that uses of node random selection carries out across cluster PTT service, across cluster data broadcasting service, in cluster PTT service and
The resource of data broadcast service is seized in cluster.
14. according to the method described in claim 6, it is characterized in that, the resource dispatching strategy includes:
Node uses in across the cluster PTT service of instruction time slot progress, across cluster data broadcasting service, cluster of static configuration according to node ID
The resource of data broadcast service is seized in PTT service and cluster.
15. according to the method described in claim 1, it is characterized by:
Two kinds of slot transmission states are arranged in node: continuous emission state and discontinuous transmission state, continuous emission state indicate section
Point sends data on given time slot and protection interval when occupying continuous slot；Discontinuous transmission state indicates node both
Data are sent in timing gap, without sending data in protection interval.
16. according to the method for claim 15, it is characterised in that:
The wireless self-networking is TDMA system and uses HARQ mechanism, dedicated for HARQ feedback division in wireless frame structure
Time slot, HARQ feedback time slot and data slot correspond；Node HARQ feedback Slot selection using continuous emission state or
Discontinuous transmission state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103518.2A CN106034304B (en) | 2015-03-10 | 2015-03-10 | A kind of implementation method of wireless self-networking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103518.2A CN106034304B (en) | 2015-03-10 | 2015-03-10 | A kind of implementation method of wireless self-networking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106034304A CN106034304A (en) | 2016-10-19 |
| CN106034304B true CN106034304B (en) | 2019-08-27 |
Family
ID=57150657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510103518.2A Expired - Fee Related CN106034304B (en) | 2015-03-10 | 2015-03-10 | A kind of implementation method of wireless self-networking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106034304B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959977B (en) * | 2017-10-20 | 2019-10-25 | 西安电子科技大学 | Wireless Mesh netword resource regulating method based on painting theory |
| CN107889254B (en) * | 2017-11-08 | 2020-12-08 | 上海酷芯微电子有限公司 | Communication method, communication device and medium for wireless ad hoc network |
| CN112291859B (en) * | 2017-11-08 | 2022-07-08 | 上海酷芯微电子有限公司 | Node device of wireless self-organizing network, scheduling control method and medium |
| CN108184270B (en) * | 2018-01-29 | 2020-07-17 | 京信通信***（中国）有限公司 | Resource scheduling method and system based on TDMA system |
| CN111083745B (en) * | 2018-10-19 | 2022-06-07 | 成都鼎桥通信技术有限公司 | Scheduling method and device |
| CN111093291B (en) * | 2018-10-24 | 2023-06-20 | 北京小米松果电子有限公司 | TDMA ad hoc network, construction method thereof, node and storage medium |
| CN109640283A (en) * | 2018-12-28 | 2019-04-16 | 北京航天测控技术有限公司 | A kind of low-consumption wireless sensing network design method based on self energizing technology |
| CN109962760B (en) * | 2019-04-09 | 2022-08-30 | 湖南智领通信科技有限公司 | Service scheduling method suitable for wireless TDMA ad hoc network |
| CN113490204B (en) * | 2021-08-10 | 2023-04-07 | 哈尔滨海能达科技有限公司 | Data transmission method, wireless ad hoc network forwarding device, terminal and storage medium |
| CN113645593B (en) * | 2021-08-18 | 2023-05-16 | 中国联合网络通信集团有限公司 | Broadcast communication method, system, base station and storage medium of M2M equipment node |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143570A (en) * | 2010-01-29 | 2011-08-03 | 陈瑞杰 | Wireless sensor network scheduling method and system for realizing real-time monitoring of low-power-consumption nodes |
| CN102201857A (en) * | 2010-03-22 | 2011-09-28 | 电信科学技术研究院 | Control signaling transmission method, system and device for relay link |
| CN102264146A (en) * | 2011-06-24 | 2011-11-30 | 浙江大学 | Time division multiple access/frequency division multiple access (TDMA/FDMA)-based wireless sensor network (WSN) medium access control (mac) layer scheduling method |
| CN103188825A (en) * | 2011-12-31 | 2013-07-03 | 中国科学院上海微***与信息技术研究所 | Networking method of wireless sensor network |
-
2015
- 2015-03-10 CN CN201510103518.2A patent/CN106034304B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143570A (en) * | 2010-01-29 | 2011-08-03 | 陈瑞杰 | Wireless sensor network scheduling method and system for realizing real-time monitoring of low-power-consumption nodes |
| CN102201857A (en) * | 2010-03-22 | 2011-09-28 | 电信科学技术研究院 | Control signaling transmission method, system and device for relay link |
| CN102264146A (en) * | 2011-06-24 | 2011-11-30 | 浙江大学 | Time division multiple access/frequency division multiple access (TDMA/FDMA)-based wireless sensor network (WSN) medium access control (mac) layer scheduling method |
| CN103188825A (en) * | 2011-12-31 | 2013-07-03 | 中国科学院上海微***与信息技术研究所 | Networking method of wireless sensor network |
Non-Patent Citations (2)
| Title |
|---|
| 一种基于分级路由的空地编队自组网方案;池万红，孙鹏;《通信技术》;20071224;全文 * |
| 一种适用于自组织网的动态时隙分配算法;王宝玺;《无线电工程》;20141029;第1节 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106034304A (en) | 2016-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106034304B (en) | A kind of implementation method of wireless self-networking | |
| US11564072B2 (en) | Method for selecting, in selection period, subframe excluding subframe relating to subframe in which transmission has been performed during sensing period in wireless communication system, and terminal using same | |
| US10536826B2 (en) | Method for selecting resource to be used for performing V2X communication within range satisfying latency requirement in wireless communication system, and terminal using same | |
| CN108809602A (en) | Base station, terminal and random access guiding detection, random access channel configuration method | |
| WO2019201165A1 (en) | Method for allocating sidelink resource, device, and system | |
| AU2014305302B2 (en) | Method and apparatus for transmitting and receiving resource allocation information in a wireless communication system | |
| EP2335440B1 (en) | Mac protocol for multi-channel wireless networks | |
| JP6307522B2 (en) | Mobile communication device and method for assigning system information with virtual carrier for machine type communication | |
| CN102804683B (en) | For the method for operation of wireless personal area net arrangement | |
| Guo et al. | An adaptive collision-free MAC protocol based on TDMA for inter-vehicular communication | |
| EP1942618A2 (en) | Distributed determination of dynamic frame sizes in a network | |
| CN107889254B (en) | Communication method, communication device and medium for wireless ad hoc network | |
| US20090086670A1 (en) | Wireless communication system | |
| GB2505696A (en) | Receiving a sleep indication signal at a communications device in the narrow band control channel of a virtual carrier | |
| CN103024834B (en) | The method and apparatus of accessing terminal to network | |
| US9967821B2 (en) | Mobile communications system, network element and method | |
| CN104618913A (en) | Method and device for transmitting D2D resource allocation information | |
| CN115136683A (en) | Method and apparatus for determining resources to be sensed for device-to-device communication in wireless communication system | |
| Torabi et al. | Survey of medium access control schemes for inter-vehicle communications | |
| KR101646941B1 (en) | Resource allocation apparatus and method for reducing overhead in mobile communication system | |
| CN104272831B (en) | Distribution method, base station and the user equipment of the communication resource | |
| CN109257824A (en) | Resource regulating method based on TD-LTE self-organizing network | |
| US20090141680A1 (en) | Flexible assignment of scheduled and request transmissions | |
| Guo et al. | An adaptive and reliable MAC mechanism for IEEE 1609.4 and 802.11 p VANETs | |
| CN110536393B (en) | Power control method, device and computer readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20191121 Granted publication date: 20190827 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200710 Granted publication date: 20190827 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190827 Termination date: 20200310 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |