CN103248463A - Frame information transmitting method and equipment - Google Patents
Frame information transmitting method and equipment Download PDFInfo
- Publication number
- CN103248463A CN103248463A CN2012100254719A CN201210025471A CN103248463A CN 103248463 A CN103248463 A CN 103248463A CN 2012100254719 A CN2012100254719 A CN 2012100254719A CN 201210025471 A CN201210025471 A CN 201210025471A CN 103248463 A CN103248463 A CN 103248463A
- Authority
- CN
- China
- Prior art keywords
- time slot
- node
- receiving node
- sign
- takies
- 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.)
- Granted
Links
Images
Landscapes
- Time-Division Multiplex Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a frame information (FI) transmitting method and equipment. The method comprises the following steps: a sending node achieves busy/free judgment of each time slot in a superframe; the sending node determines whether a source temporary identifier (STI) needs to be indicated for each time slot in the superframe; the sending node sets the frame information to be sent according to the determined result, wherein the frame information comprises a bitmap occupied by each time slot; a receiving node receives and acquires the frame information; and the receiving node confirms the occupation situation of the time slot according to one or several of the bitmap occupied by the current time slot, the present channel occupation situation, the FI maintenance situation of the sending node and the characteristics of the current time slot. The scheme can greatly lower the FI protocol expenditure, and improves such indexes as system resource utilization rate and system throughput.
Description
Technical field
The present invention relates to the MANET technical field, refer to a kind of transmission frame information (FrameInformation, method and apparatus FI) especially.
Background technology
RR-ALOHA is based on access and the resource allocation mechanism of TDMA.After node occupies a time slot, will periodically send FI, carry the Time Slot Occupancy situation that oneself directly perceives among the FI, i.e. time slot operating position in the last superframe in the detected jumping scope.Each node is by the FI that node around monitoring sends, and can judge each Time Slot Occupancy situation in the adjacent double bounce bunch, thereby realizes that coverage disjoint jumps that (One hop, OH) bunch the time interval resource between is reused.
Fig. 1 is that terminal is propagated the FI schematic diagram in the prior art in single-hop bunch A, B and C.Referring to shown in Figure 1,1-7 represents node among the figure, elliptic region A, B, C represent that one jumps (OH) bunch, all nodes in each OH bunch bunch in enjoy full-mesh, can not direct communication if the node in different bunches does not belong to the common subclass of all bunches, the node that belongs to A, B, C bunch common subclass can communicate with all nodes in other bunches, has OH bunch of common node and constitutes an adjacent double bounce (TH) bunch.Can know all node Time Slot Occupancy situations 3 bunches from FI-4 (FI of node 4) and FI-5: be example with FI-3, if the k-N time slot of all nodes (2,3,4,5,6) all is AVAILABLE in its OH bunch, then the k time slot is AVAILABLE; If have the time slot of at least one node to be identified as BUSY in its OH bunch, then node 3 is RESERVED in the k time slot mark.
Among the RR-ALOHA, when new node adds network, must obtain a primary channel (BC) (corresponding resource reservation unit.Resource reservation unit can also can corresponding a plurality of time slots for a time slot.In the data transmission procedure, if terminal is not initiatively abandoned BC time slot corresponding resource, then can use the slot transmission data that take, other nodes can not use this time slot in the meantime always.
Each activates node and thinks that from the angle of this node time slot allocation takies situation by periodically sending with fix information institutional framework FI indication.In each superframe, node all must send FI in the BC of oneself, and according to the FI of neighbors and the own channel operating position Time Slot Occupancy state that upgrades in time, and the Time Slot Occupancy state after will upgrading embodies in the FI of oneself transmission.
Among the RR-ALOHA, FI is a vector of being made up of N time slot (timeslot number that comprises in the superframe) state information.Shown in Fig. 2 a, in the superframe in 7 time slots time slot 0, time slot 1, time slot 3 and time slot 6 by C
BC, B, C
SCTake with A.
Terminal oneself is intercepted acquisition to the FI that in the top n time slot other-end is sent, and the FI of node A on its BC is shown in Fig. 2 b.Shown in Fig. 2 b, the status indication information of each time slot is made of 12bit among the FI that terminal sends, and is respectively:
Time Slot Occupancy status indication information (1bit): time slot state among the FI, when dividing into groups by correct reception or sending, time slot is labeled as busy (BUSY 1), otherwise is labeled as the spare time (FREE 0);
Take temporary mark (Source Temporary Identifier, STI) (8bit) of corresponding time slot terminal;
Send the priority indication (2bit) of data;
The professional indication of PTP (1bit);
Therefore, need the FI that transmits to need 12 * N bit altogether in each time slot.
When terminal meets the FI that listens to the other-end transmission, need be according to the seizure condition of each time slot of content update that receives FI.Time Slot Occupancy has two states: reserve (RESERVED) state or available (AVAILABLE) state.Time Slot Occupancy state judgment rule is as follows:
The rule 1: from time slot (K-N) to time slot (K-1), the FI that sending node j receives a node feedback in OH bunch at least is marked as time slot (K-N) busy, then K time slot is marked as and preengages (RESERVED), otherwise is labeled as available (AVAILABLE).
When sending FI, node is determined the seizure condition of each time slot in the superframe according to receiving FI in the previous superframe length, generates the FI shown in Fig. 2 a.Because the difference of node present position, therefore the Time Slot Occupancy situation of each node perceived is different, the FI that each node sends only reflects the Time Slot Occupancy situation that oneself perceives, therefore only directly determine to send the seizure condition of the time slot among the FI among the FI that each node sends at the FI that corresponding time slot is monitored according to oneself, and not according to receiving the seizure condition that the seizure condition of indicating third party's time slot among the FI comes indication third party time slot in FI.For example, node A only listens to the FI that Node B sends at time slot 5 in a super frame period, and the FI middle finger of Node B is shown in time slot 3 and is taken by node C, and at this moment, the FI that the A node sends only indicates time slot 5 to be taken by B, and does not indicate time slot 3 to be taken by the C node.
FI makes node can grasp the distribution condition of (Radio Resource beyond the double bounce can be multiplexing) time slot in the double bounce scope, and maintenance occupies the BC channel, reduces conflict, improves resource utilization.
The major function of FI: be to inform channel conditions, solve hiding, exposed node problems; In AD hoc mode whether access node is inserted successfully simultaneously and adjudicate.Specific to a node, during as sending node, by oneself FI inform node oneself on every side to current time slots take and announce channel occupancy condition information in the jumping scope that oneself listens to, in order in the double bounce scope, realize reliable resource reservation and collision detection; During as receiving node, from the FI of other node, learn one jump bunch and two jump bunch in the resource condition information, comprise whether the own current resource that takies bumps.Specifically, if receiving node does not also have BC, its seizure condition indication information by the request time slot among the FI that receives in the feedback window and the temporary mark that takies request time slot terminal judge whether oneself successfully inserts.If receiving node has been safeguarded the BC of oneself, its by monitoring reception constantly to FI in the seizure condition indication information of request time slot and the temporary mark that takies request time slot terminal judge whether oneself can hold over the BC channel.
In the RR-ALOHA mechanism, each " stablizing " node that adds network all must send FI by the BC of oneself in each super frame period, obviously, current FI expense is very big, cause in the real system resource utilization and throughput low excessively, therefore need be optimized design to the generating mode of FI.
Though resource is distributed and to be jumped with two that bunch to be that unit carries out multiplexing, but each node only need indicate the Time Slot Occupancy situation of oneself and oneself a jumping neighbors in the RR-ALOHA mechanism, on average, it is that corresponding seizure condition sign bit is designated as idle condition that time slot over half is arranged among the FI that each node sends, and reduces the service efficiency of resource.Idle condition does not need 12 bits.
In the RR-ALOHA mechanism among the FI seizure condition of each time slot sign except seizure condition sign bit, whether also will point out to take the corresponding STI of corresponding time slot node identifies and bumps, the time slot that the seizure condition that listens to is not changed all carries its corresponding STI information and under for the stable network topology situation in each FI, only need indicate the situation that takies of channel, STI is otiose., also can cause the great wasting of resources.
In the RR-ALOHA mechanism among the FI seizure condition of each time slot sign except seizure condition sign bit, whether also will point out to take the corresponding STI of corresponding time slot node identifies and bumps, when time slot is not occupied, also need to reserve the STI position (shown in Fig. 2 b) of time slot correspondence, in addition, the time slot that the seizure condition that listens to is not changed all carries its corresponding STI information and also can cause the great wasting of resources in each FI.
FI also carries the PTP indication bit that time slot sends the precedence information of data and is used for supporting the PTP transmission in the basic RR-ALOHA mechanism except the STI information of indication Time Slot Occupancy state and time slot correspondence.For these two information bits, arrange down in the part system, can cancel.
Therefore, need need do corresponding enhancing to RR-ALOHA at above problem, namely under the prerequisite that does not reduce, reduce protocol overhead, improve resource utilization.
Summary of the invention
The invention provides a kind of method and device of transmission frame information, can reduce the protocol overhead of FI.
The method of a kind of sending node transmission frame information that the embodiment of the invention provides, this method comprises:
Sending node hurries at each time slot in the superframe and not busy judges, and judges whether indicate in the FI that will send ephemeral terminations to identify STI at each time slot in the superframe;
The FI that sending node will send according to the judged result setting, and described FI comprises each Time Slot Occupancy bitmap bitmap.
A kind of receiving node that the embodiment of the invention provides obtains the method for frame information, and this method comprises:
Receiving node receives and obtains that current time slots takies bitmap information in the frame information;
Receiving node takies bitmap information according to described current time slots, and self current channel occupancy situation, self is to one or more information in the feature of the FI maintenance condition of sending node and current time slots, determines the situation that takies of this time slot.
The device of a kind of sending node transmission frame information that the embodiment of the invention provides, this device comprises:
Judging unit is used at the not busy judgement of hurry of each time slot of superframe, and judges whether and need indicate STI in the FI that will send at each time slot in the superframe;
Control unit, for the FI that will send according to the judged result setting, and described FI comprises each Time Slot Occupancy bitmap bitmap.
A kind of receiving node that the embodiment of the invention provides obtains the device of frame information, and this device comprises:
Receiving element is used for receiving and obtaining the frame information current time slots taking bitmap information;
Determining unit is used for taking bitmap information according to described current time slots, and self current channel occupancy situation, self is to one or more information in the feature of the FI maintenance condition of sending node and current time slots, determines the situation that takies of this time slot.
Among the present invention program, sending node hurries at each time slot in the superframe and not busy judges; The frame information that sending node will send according to the judged result setting, and described frame information comprises each Time Slot Occupancy bitmap bitmap.Receiving node receives and obtains that current time slots takies bitmap information in the frame information; Receiving node takies bitmap information according to described current time slots, and self current channel occupancy situation, self is to one or more information in the feature of the FI maintenance condition of sending node and current time slots, determines the situation that takies of this time slot.This scheme can reduce the FI protocol overhead greatly, has improved indexs such as resource utilization ratio and throughput of system.
Description of drawings
Fig. 1 is that terminal is propagated the FI schematic diagram in the prior art in single-hop bunch A, B and C;
Fig. 2 a is the structural representation of a FI; The FI schematic diagram of Fig. 2 b for needing in each time slot to transmit;
Fig. 3 is the simplification FI structural representation of the embodiment of the invention;
Fig. 4 is the method flow schematic diagram of the sending node transmission frame information of the embodiment of the invention;
Fig. 5 is the method flow schematic diagram of the receiving node transmission frame information of the embodiment of the invention;
The apparatus structure schematic diagram of a kind of sending node transmission frame information that Fig. 6 provides for present embodiment;
A kind of receiving node that Fig. 7 provides for present embodiment obtains the apparatus structure schematic diagram of frame information;
Fig. 8 is the scene schematic diagram of example for jumping the cluster knot point with two in the specific embodiment one;
Fig. 9 is existing node Time Slot Occupancy tabulation in the specific embodiment one.
Embodiment
For under the prerequisite that does not influence systematic function, reduce the FI protocol overhead.Among the present invention program, sending node hurries at each time slot in the superframe and not busy judges, and judges whether indicate in the FI that will send ephemeral terminations to identify STI at each time slot in the superframe; The FI that sending node will send according to the judged result setting, and described FI comprises each Time Slot Occupancy bitmap bitmap.Receiving node receives and obtains that current time slots takies bitmap information in the frame information; Take bitmap information according to described current time slots, and self current channel occupancy situation, self is to one or more information in the feature of the FI maintenance condition of sending node and current time slots, determines the situation that takies of this time slot.
Referring to shown in Figure 4, the method for a kind of sending node transmission frame information of the embodiment of the invention may further comprise the steps:
Step 401: sending node hurries at each time slot in the superframe and not busy judges.
Step 402: sending node judges whether to indicate ephemeral terminations sign STI at each time slot in the superframe in the FI that will send.
Step 403: the FI that sending node will send according to the judged result setting, and described FI comprises each Time Slot Occupancy bitmap bitmap.
Here, can be divided into two kinds of situations, first kind of situation if the time slot of current judgement is idle time slot, then comprises the seizure condition of this time slot for idle among the FI of Fa Songing, and do not comprise any ephemeral terminations sign STI.
Second kind of situation, if the time slot of current judgement is busy time slot, if the time slot of current judgement is busy time slot, described sending node determines whether and need indicate STI in the FI that will send according to channel condition information, the channel condition information of safeguarding when sent frame information last time and the system business demand of self current maintenance and one or more information in the priority resource race to control mechanism.
At second kind of situation, can specifically be subdivided into following embodiment:
When if described this time slot once sends FI on this sending node, the seizure condition of this time slot is for busy, and the temporary mark that takies this time slot terminals is identical with the current temporary mark that takies this time slot terminals, the occupancy that then comprises this time slot among the described FI that will send, be busy this moment, and do not comprise the ephemeral terminations sign STI of the node that takies this time slot.
When if described this time slot once sends FI on this sending node, the seizure condition of this time slot is for busy, and the temporary mark and the current temporary mark that takies this time slot terminals that take this time slot terminals are inequality, the occupancy that then comprises this time slot among the described FI that will send, be busy this moment, and comprise the ephemeral terminations sign STI of the node that takies this time slot.
When if described this time slot once sends FI on this sending node, the seizure condition of this time slot is idle, then comprises the occupancy of this time slot among the described FI that will send, and be busy this moment, and comprises the ephemeral terminations sign STI of the node that takies this time slot.
If according to the system business demand, need to determine the corresponding professional PTP sign of time slot, then comprise the PTP sign among the described FI, if determine the corresponding professional PTP sign in crack when not required, then do not comprise the PTP sign among the described FI.
If according to system business demand and priority resource race to control mechanism, need to determine the corresponding professional PRI sign of time slot, then comprise the PTP sign among the described FI, if determine the corresponding professional PRI sign in crack when not required, then do not comprise the PTP sign among the described FI.
Referring to shown in Figure 3, the simplification FI of the embodiment of the invention comprises that priority exists indication information, this node FI and neighbors FI, and wherein, the priority existence is designated as optional.This node FI can comprise the time slot index (7 bits or 8 bits) of current time slots information (9 bit) and other time slots, current time slots information comprises PRI (2bit), STI (8bit) and BC (1bit) information whether, wherein, PRI (2bit) is optional, and neighbors FI comprises that each Time Slot Occupancy bitmap, priority list (optional), STI exist indication tabulation and STI tabulation.
Referring to shown in Figure 5, the method that a kind of receiving node of the embodiment of the invention obtains frame information specifically comprises the steps:
Step 501: receiving node receives and obtains that current time slots takies bitmap bitmap information in the frame information;
Step 502: receiving node takies bitmap information according to described current time slots, and self current channel occupancy situation, self is to one or more information in the feature of the FI maintenance condition of sending node and current time slots, determines the situation that takies of this time slot.
In step 502, if current time slots is not the channel place time slot of receiving node, then receiving node determines that this time slot is for taking.
In step 502, if the time slot at the channel place that current time slots is receiving node to be safeguarded, and described sending node is not the node that receiving node is safeguarded, the seizure condition of this time slot be the free time, then ignores this time slot.
If current time slots is receiving node safeguard the time slot at channel place, and described sending node is not the node that receiving node is safeguarded, the seizure condition of this time slot is for busy, but do not comprise the ephemeral terminations sign that takies this time slot among the described FI, then receiving node thinks that this sending node has given negative feedback for the Time Slot Occupancy of oneself, at this moment, receiving node thinks that own BC takies failure, needs to insert again.
The time slot at the channel place that if current time slots is receiving node to be safeguarded, and described sending node is not the node that receiving node is safeguarded, the seizure condition of current time slots is for busy among the described FI, comprise the ephemeral terminations sign that takies this time slot among the described FI, and described ephemeral terminations identifies identical with self temporary mark, and then receiving node thinks that the time slot that this sending node takies for oneself has given positive feedback.
The time slot at the channel place that if current time slots is receiving node to be safeguarded, and described sending node is not the node that receiving node is safeguarded, the seizure condition of current time slots is for busy among the described FI, but comprise the ephemeral terminations sign that takies this time slot among the described FI, and described ephemeral terminations identifies identical with self temporary mark, and then receiving node thinks that this sending node has given negative feedback for the Time Slot Occupancy of oneself, at this moment, receiving node thinks that own BC takies failure, needs to insert again.
The time slot at the channel place that if current time slots is receiving node to be safeguarded, and described sending node is the node that receiving node is safeguarded, and the seizure condition of current time slots be idle among the described FI, and then receiving node is thought needs access again by access failure.
The time slot at the channel place that if current time slots is receiving node to be safeguarded, and described sending node is the node that receiving node is safeguarded, the seizure condition of current time slots is for busy, but comprise the ephemeral terminations sign that takies this time slot among the described FI, and described ephemeral terminations identifies identical with self temporary mark, and then receiving node thinks that the time slot that this sending node takies for oneself has given positive feedback.
The time slot at the channel place that if current time slots is receiving node to be safeguarded, and described sending node is the node that receiving node is safeguarded, the seizure condition of current time slots is for busy, but do not comprise the ephemeral terminations sign that takies this time slot among the described FI, then receiving node thinks that this sending node has given positive feedback for the Time Slot Occupancy of oneself.
The time slot at the channel place that if current time slots is receiving node to be safeguarded, and described sending node is the node that receiving node is safeguarded, the seizure condition of current time slots is for busy, comprise the ephemeral terminations sign that takies this time slot among the described FI, and described ephemeral terminations sign and self temporary mark are inequality, and then receiving node thinks that this sending node has given negative feedback for the Time Slot Occupancy of oneself, at this moment, receiving node thinks that own BC takies failure, needs to insert again.
Referring to shown in Figure 6, the device of a kind of sending node transmission frame information that present embodiment provides comprises: judging unit 61 and control unit 62.
Judging unit 61 is used at the not busy judgement of hurry of each time slot of superframe, and judges whether and need indicate STI in the FI that will send at each time slot in the superframe;
Control unit 62, for the frame information that will send according to the judged result setting, and described frame information comprises each Time Slot Occupancy bitmap bitmap.
Described control unit 62 is idle time slot if be used for the time slot of current judgement, then comprises the seizure condition of this time slot among the FI of Fa Songing for idle, and does not comprise any ephemeral terminations sign STI.
Described control unit 62, if being used for the time slot of current judgement is busy time slot, described sending node determines whether and need indicate STI in the FI that will send according to channel condition information, the channel condition information of safeguarding when sent frame information last time and the system business demand of self current maintenance and one or more information in the priority resource race to control mechanism.
Described control unit 62, if when on this sending node, once sending FI for described this time slot, the seizure condition of this time slot is for busy, and the temporary mark that takies this time slot terminals is identical with the current temporary mark that takies this time slot terminals, the occupancy that then comprises this time slot among the described FI that will send, be busy this moment, and do not comprise the ephemeral terminations sign STI of the node that takies this time slot.
Described control unit 62, if when on this sending node, once sending FI for described this time slot, the seizure condition of this time slot is for busy, and the temporary mark and the current temporary mark that takies this time slot terminals that take this time slot terminals are inequality, the occupancy that then comprises this time slot among the described FI that will send, be busy this moment, and comprise the ephemeral terminations sign STI that takies this time slot.
Described control unit 62, if when once sending FI for described this time slot on this sending node, the seizure condition of this time slot is idle, then comprises the occupancy of this time slot among the described FI that will send, be busy this moment, and comprise the ephemeral terminations sign STI that takies this time slot.
Described control unit 62 if be used for according to the system business demand, need to determine the corresponding professional PRI sign of time slot, then comprises the PRI sign among the described FI, if determine the corresponding professional PRI sign in crack when not required, does not then comprise the PRI sign among the described FI.
Described control unit 62, if be used for according to system business demand and priority resource race to control mechanism, need to determine the corresponding professional PRI sign of time slot, then comprise the PRI sign among the described FI, if determine the corresponding professional PRI sign in crack when not required, then do not comprise the PRI sign among the described FI.
Referring to shown in Figure 7, the device that a kind of receiving node that present embodiment provides obtains frame information comprises: receiving element 71 and determining unit 72, wherein,
Receiving element 71 is used for receiving and obtaining the frame information current time slots taking bitmap information;
Determining unit 72 is used for taking bitmap information according to described current time slots, and self current channel occupancy situation, self is to one or more information in the feature of the FI maintenance condition of sending node and current time slots, determines the situation that takies of this time slot.
Described determining unit 72, if be used for the time slot that current time slots is not the channel place of receiving node maintenance, then receiving node determines that this time slot is for taking.
Described definite device 72, if be used for the time slot that current time slots is the receiving node channel place of safeguarding, and described sending node is not the node that receiving node is safeguarded, the seizure condition of this time slot be the free time, then ignores this time slot.
Described definite device 72, if be used for current time slots and be the time slot at the channel place that receiving node safeguards, and described sending node is not the node that receiving node is safeguarded, the seizure condition of this time slot is for busy, but do not comprise the ephemeral terminations sign that takies this time slot among the described FI, then receiving node is thought needs the channel occupancy failure of self to insert again.
Described determining unit 72, if be used for current time slots and be the time slot at the channel place that receiving node safeguards, and described sending node is not the node that receiving node is safeguarded, the seizure condition of current time slots is for busy among the described FI, comprise the ephemeral terminations sign that takies this time slot among the described FI, and described ephemeral terminations identifies identical with self temporary mark, and then receiving node thinks that the time slot that this sending node takies for oneself has given positive feedback.
Described determining unit 72, if be used for current time slots and be the time slot at the channel place that receiving node safeguards, and described sending node is not the node that receiving node is safeguarded, the seizure condition of current time slots is for busy among the described FI, but comprise the ephemeral terminations sign that takies this time slot among the described FI, and described ephemeral terminations identifies identical with self temporary mark, and then receiving node is thought needs access failure to insert again.
Described determining unit 72, if be used for current time slots and be the time slot at the channel place that receiving node safeguards, and described sending node is the node that receiving node is safeguarded, the seizure condition of current time slots be the free time among the described FI, then receiving node is thought needs access failure to insert again.
Described determining unit 72, if be used for current time slots and be the time slot at the channel place that receiving node safeguards, and described sending node is the node that receiving node is safeguarded, the seizure condition of current time slots is for busy, but do not comprise the ephemeral terminations sign that takies this time slot among the described FI, then receiving node thinks that this sending node has given positive feedback for the Time Slot Occupancy of oneself.
Described determining unit 72, if be used for current time slots and be the time slot at the channel place that receiving node safeguards, and described sending node is the node that receiving node is safeguarded, the seizure condition of current time slots is for busy, comprise the ephemeral terminations sign that takies this time slot among the described FI, and described ephemeral terminations sign and self temporary mark are inequality, and then receiving node is thought needs the channel occupancy failure of self to insert again.
Lift specific embodiment below and describe technical scheme of the present invention in detail.
Embodiment 1: have a new node just to start and apply for BC and do not receive any not embodiment of the FI of the node of maintenance.
In the present embodiment, current superframe is the X superframe, and superframe length is 7slots, jumps cluster knot point schematic diagrames for shown in Figure 8 two, and in node A and the B stable existence and bunch 1, node A and node D stable existence are in bunches 2.Node C is the starting up just, need request BC resource, the BC of other nodes takies slot list as shown in Figure 9, node C has heard the FI of node A and Node B in audit window, after monitoring end, selected slot 3 to send FI, subsequent feedback window interior nodes C has heard the FI of node A and Node B again.
A concrete implementation process is as follows:
(1) newly added node C at first intercepts channel, and time of intercept is a superframe.
(2) current stable node comprises that node A, C and D need send FI at own corresponding BC, and node A and Node B are the hop node of node C, and node D is two hop nodes of node C, and the hop node node A with the node C of new access is example here.When superframe X slot 6, node A need send FI.
Among the Time Slot Occupancy bitmap of node A in FI, slot 1, and the channel occupancy situation of slot 2 and slot 6 correspondences is busy, and other slot occupancies are free; For slot 1, slot 2, because Node B and node D all stable existence in network, do not need to send STI, be that slot 1 and slot 2 seizure condition sign when a last superframe node A sends FI all is busy, and the temporary mark of the Time Slot Occupancy terminal that the temporary mark and the node A this moment that take the terminal of corresponding time slot safeguard is identical, in this case, node only need indicate this time slot when sending FI occupancy is denoted as busy, does not need to indicate the temporary mark that takies this time slot terminal.
Such as only considering broadcast communication at present or realizing point to point link by MAC Address mode or other modes, do not need PTP flag this time;
Consider that it is not very reliable carrying out preemptive priority mechanism according to the RR-ALOHA algorithm, and consider the business demand of designed system and the access priority that concrete priority resource race to control mechanism can guarantee different business at present, do not need PTP flag this time;
(3) FI that receives of receiving node utilization upgrades the time slot state table, here only and the new node C that inserts be example;
New start node C by in the audit window to the monitoring of FI, know slot 1, slot 2 and slot 6 are occupied at present, and slot 1 taken by two hop nodes, slot 2 and slot 6 are taken by a hop node B and A respectively.
(4) node of request BC resource is selected an idle time slot K to send FI at random, and is begun to intercept channel by the time slot state table;
Particularly, after audit window finished, { slot 0, and slot 3, and slot 4, selects the time slot of a free time as the BC that oneself selects among the slot 5} at random, and sends the FI of oneself at the time slot of selecting in idle slot newly to start node C.
(5) node C is after slot 3 sends FI, the hop node of node C---comprise that node A and Node B receive the FI information of node C after, need do corresponding processing.Node A and Node B just need indicate the feedback information to new access node in each self-corresponding FI next time.Still be example with node A, after the FI message of correct receiving node C, when superframe X+1 slot 6, node A need send the FI of oneself.
At this moment, except the indication to Node B, node D and the BC of oneself, also comprise the feedback to node C in the FI information of node A.The i.e. slot 3 that selects for node C, its seizure condition is designated free when once sending FI because of slot 3 on node A, then at this moment, node A is denoted as busy except occupancy that needs indicate this time slot when sending FI, also need to indicate the temporary mark that takies this time slot terminal, i.e. the STI of node C.Occupancy by time slot indicates the positive feedback of having finished the Time Slot Occupancy of the node C of node A with the STI indication jointly.
Whether (6) node C intercepts a superframe time span, preengage successfully and to judge, if namely node A and Node B all give node C positive feedback, node C thinks that oneself inserts successfully.Otherwise, think and need restart access failure to monitor.
What provide above is the behavior of new access node, and for the node that BC and generation bunch merging are arranged, the behavior of node also is consistent, repeats no more here.
Embodiment 2: have a new node just to start and apply for BC and received the not embodiment of the FI of the node of maintenance.
The thinking of this enforcement is identical with embodiment 1, be that sending node needs to determine this FI according to the channel condition information of own current maintenance and in conjunction with the channel occupancy information that a last superframe is safeguarded, but for receiving node, the place different with embodiment 1 is that receiving node still received the FI of the node of oneself not safeguarding after selecting BC.Node C has only heard the FI of Node B in audit window, namely node C does not hear the FI that node A sends, and has received the FI that node A sends in feedback window, and at this moment, node A is the node of not safeguarding for node C.In feedback window, node C need judge in conjunction with the corresponding criterion of BC basis of oneself according to the FI of node A transmission equally as receiving node.
With embodiment 1, above-mentioned behavior is for the node that BC and generation bunch merging are arranged, and behavior also is consistent, repeats no more here.
The solution of the present invention is compared with the FI transmit mechanism of existing basic RR-ALOHA mechanism, and channel information and other information safeguarded when sending node also sends FI in conjunction with the last time by the channel condition information according to own current maintenance are determined this FI.Receiving node is according to this FI that receives, and the own current BC of combination takies situation, oneself the FI maintenance condition of sending node and the feature of current time slots carried out respective handling.This scheme can reduce the FI protocol overhead greatly, has improved indexs such as resource utilization ratio and throughput of system.
FI resource requirement after the FI of existing basic RR-ALOHA mechanism and the improvement is analyzed as follows:
(1) basic FI design, the FI expense is as shown in table 1.Each time slot adopts 12bit to represent in FI.
The basic FI expense of table 1
(2) design of the FI after the improvement
It is elongated improving back FI message, and content is arranged as follows:
At first adopt the bitmap mode to indicate the occupancy indication bit of each time slot, be that unit indicates (corresponding bit of each resource allocation unit with the resource allocation unit, be used to indicate the not busy busy condition of each resource allocation unit), the resource allocation unit number that bitmap length equals to comprise in the superframe.(Part1：Bitmap?1)
Behind above-mentioned bitmap, use whether the terminal of this resource allocation unit is same terminal in the terminal that adopts the bitmap mode to indicate on each occupied resource allocation unit again to use this resource allocation unit and the last superframe.This bitmap length equals occupied resource allocation unit number in the superframe.(Part2：Bitmap2)
To occupied and and last superframe in occupied terminal together resource allocation unit not, provide the STI of the occupied terminal after each resource allocation unit changes.The resource allocation unit that the relation that takies that equals this partial-length takes place is counted * STI length.(Part?3：STI?list)
By above analysis as can be known, the length of TD ad hoc DSRC mechanism FI changes length=Part1+Part2+Part3.
FI design resource overhead after the improvement is subjected to the user of resources occupation rate, last superframe and current use same asset allocation units in the super frame period to change the influence of ratio.If user's variation ratio of last superframe and the same time slot of current use is 5% o'clock, FI expense corresponding under the different superframe Time Slot Occupancy ratio situations sees Table.
Table 2 is for improving neighbors information field expense among the FI
Show more as can be known by table 1 and table 2, the FI design after the improvement greatly reduces the expense of FI.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software embodiment or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form of the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make and carry out the sequence of operations step producing computer implemented processing at computer or other programmable devices, thereby be provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame in the instruction that computer or other programmable devices are carried out.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative concept of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (35)
1. the method for a sending node transmission frame information FI is characterized in that this method comprises:
Sending node hurries at each time slot in the superframe and not busy judges, and judges whether indicate in the FI that will send ephemeral terminations to identify STI at each time slot in the superframe;
The FI that sending node will send according to the judged result setting, and described FI comprises each Time Slot Occupancy bitmap bitmap.
2. method according to claim 1 is characterized in that, sending node hurries at each time slot in the superframe and not busy judges, and judges whether and need indicate STI in the FI that will send at each time slot in the superframe, comprising:
If the time slot of current judgement is idle time slot, then comprises the seizure condition of this time slot among the FI of Fa Songing for idle, and do not comprise any STI.
3. method according to claim 1 is characterized in that, sending node hurries at each time slot in the superframe and not busy judges, and judges whether and need indicate STI in the FI that will send at each time slot in the superframe, comprising:
If the time slot of current judgement is busy time slot, described sending node determines whether and need indicate STI in the FI that will send according to channel condition information, the channel condition information of safeguarding when sent frame information last time and the system business demand of self current maintenance and one or more information in the priority resource race to control mechanism.
4. method according to claim 3, it is characterized in that, when if described this time slot once sends FI on this sending node, the seizure condition of this time slot is for busy, and the temporary mark that takies this time slot terminals is identical with the current temporary mark that takies this time slot terminals, the occupancy that then comprises this time slot among the described FI that will send, be busy this moment, and do not comprise the ephemeral terminations sign STI of the node that takies this time slot.
5. method according to claim 3, it is characterized in that, when if described this time slot once sends FI on this sending node, the seizure condition of this time slot is for busy, and the temporary mark and the current temporary mark that takies this time slot terminals that take this time slot terminals are inequality, the occupancy that then comprises this time slot among the described FI that will send, be busy this moment, and comprise the ephemeral terminations sign STI of the node that takies this time slot.
6. method according to claim 3, it is characterized in that, when if described this time slot once sends FI on this sending node, the seizure condition of this time slot is idle, the occupancy that then comprises this time slot among the described FI that will send, be busy this moment, and comprise the ephemeral terminations sign STI of the node that takies this time slot.
7. method according to claim 3 is characterized in that, if according to the system business demand, need to determine the corresponding professional PTP sign of time slot, then comprise the PTP sign among the described FI, if determine the corresponding professional PTP sign in crack when not required, then do not comprise the PTP sign among the described FI.
8. method according to claim 3, it is characterized in that, if according to system business demand and priority resource race to control mechanism, need to determine the corresponding professional PRI sign of time slot, then comprise the PTI sign among the described FI, if determine the corresponding professional PRI sign in crack when not required, then do not comprise the PTIA sign among the described FI.
9. a receiving node obtains the method for frame information, it is characterized in that this method comprises:
Receiving node receives and obtains that current time slots takies bitmap information in the frame information;
Receiving node takies bitmap information according to described current time slots, and self current channel occupancy situation, self is to one or more information in the feature of the FI maintenance condition of sending node and current time slots, determines the situation that takies of this time slot.
10. method according to claim 9 is characterized in that, if current time slots is not the channel place time slot of receiving node, then receiving node determines that this time slot is for taking.
11. method according to claim 9 is characterized in that, if the time slot at the channel place that current time slots is receiving node to be safeguarded, and described sending node is not the node that receiving node is safeguarded, the seizure condition of this time slot be the free time, then ignores this time slot.
12. method according to claim 9, it is characterized in that, the time slot at the channel place that if current time slots is receiving node to be safeguarded, and described sending node is not the node that receiving node is safeguarded, the seizure condition of this time slot is for busy, but do not comprise the ephemeral terminations sign that takies this time slot among the described FI, then receiving node is thought needs the channel occupancy failure of self to insert again.
13. method according to claim 9, it is characterized in that, the time slot at the channel place that if current time slots is receiving node to be safeguarded, and described sending node is not the node that receiving node is safeguarded, the seizure condition of current time slots is for busy among the described FI, comprise the ephemeral terminations sign that takies this time slot among the described FI, and described ephemeral terminations sign is identical with self temporary mark, then receiving node thinks that the time slot that this sending node takies for oneself has given positive feedback.
14. method according to claim 9, it is characterized in that, the time slot at the channel place that if current time slots is receiving node to be safeguarded, and described sending node is not the node that receiving node is safeguarded, the seizure condition of current time slots is busy among the described FI, but comprises the ephemeral terminations sign that takies this time slot among the described FI, and described ephemeral terminations identifies identical with self temporary mark, then receiving node is thought needs access failure to insert again.
15. method according to claim 9, it is characterized in that, the time slot at the channel place that if current time slots is receiving node to be safeguarded, and described sending node is the node that receiving node is safeguarded, the seizure condition of current time slots is idle among the described FI, then receiving node is thought needs access failure to insert again.
16. method according to claim 9, it is characterized in that, the time slot at the channel place that if current time slots is receiving node to be safeguarded, and described sending node is the node that receiving node is safeguarded, the seizure condition of current time slots is for busy, but comprise the ephemeral terminations sign that takies this time slot among the described FI, and described ephemeral terminations sign is identical with self temporary mark, then receiving node thinks that the time slot that this sending node takies for oneself has given positive feedback.
17. method according to claim 9, it is characterized in that, the time slot at the channel place that if current time slots is receiving node to be safeguarded, and described sending node is the node that receiving node is safeguarded, the seizure condition of current time slots is for busy, but do not comprise the ephemeral terminations sign that takies this time slot among the described FI, then receiving node thinks that this sending node has given positive feedback for the Time Slot Occupancy of oneself.
18. method according to claim 9, it is characterized in that, the time slot at the channel place that if current time slots is receiving node to be safeguarded, and described sending node is the node that receiving node is safeguarded, the seizure condition of current time slots comprise the ephemeral terminations sign that takies this time slot among the described FI, and described ephemeral terminations identifies with self temporary mark inequality for busy, then receiving node is thought needs the channel occupancy failure of self to insert again.
19. the device of a sending node transmission frame information is characterized in that, this device comprises:
Judging unit is used at the not busy judgement of hurry of each time slot of superframe, and judges whether and need indicate STI in the FI that will send at each time slot in the superframe;
Control unit, for the FI that will send according to the judged result setting, and described FI comprises each Time Slot Occupancy bitmap bitmap.
20. device according to claim 19 is characterized in that, described control unit is idle time slot if be used for the time slot of current judgement, then comprises the seizure condition of this time slot among the FI of Fa Songing for idle, and does not comprise any ephemeral terminations sign STI.
21. device according to claim 20, it is characterized in that, described control unit, if being used for the time slot of current judgement is busy time slot, described sending node determines whether and need indicate STI in the FI that will send according to channel condition information, the channel condition information of safeguarding when sent frame information last time and the system business demand of self current maintenance and one or more information in the priority resource race to control mechanism.
22. device according to claim 21, it is characterized in that, described control unit, if when on this sending node, once sending FI for described this time slot, the seizure condition of this time slot is for busy, and the temporary mark that takies this time slot terminals is identical with the current temporary mark that takies this time slot terminals, then comprises the occupancy of this time slot among the described FI that will send, be busy this moment, and do not comprise the ephemeral terminations sign STI of the node that takies this time slot.
23. device according to claim 21, it is characterized in that, described control unit, if when on this sending node, once sending FI for described this time slot, the seizure condition of this time slot is for busy, and it is inequality to take temporary mark and the current temporary mark that takies this time slot terminals of this time slot terminals, then comprises the occupancy of this time slot among the described FI that will send, be busy this moment, and comprise the ephemeral terminations sign STI of the node that takies this time slot.
24. device according to claim 21, it is characterized in that, described control unit, if when on this sending node, once sending FI for described this time slot, the seizure condition of this time slot is idle, the occupancy that then comprises this time slot among the described FI that will send, be busy this moment, and comprise the ephemeral terminations sign STI of the node that takies this time slot.
25. device according to claim 21, it is characterized in that, described control unit, if be used for according to the system business demand, need to determine the corresponding professional PTP sign of time slot, then comprise the PTP sign among the described FI, if determine the corresponding professional PTP sign in crack when not required, then do not comprise the PTP sign among the described FI.
26. device according to claim 21, it is characterized in that, described control unit, if be used for according to system business demand and priority resource race to control mechanism, need to determine the corresponding professional PRI sign of time slot, then comprise the PRI sign among the described FI, if determine the corresponding professional PRI sign in crack when not required, then do not comprise the PRI sign among the described FI.
27. a receiving node obtains the device of frame information, it is characterized in that, this device comprises:
Receiving element is used for receiving and obtaining the frame information current time slots taking bitmap information;
Determining unit is used for taking bitmap information according to described current time slots, and self current channel occupancy situation, self is to one or more information in the feature of the FI maintenance condition of sending node and current time slots, determines the situation that takies of this time slot.
28. device according to claim 27 is characterized in that, described determining unit, if be used for the time slot that current time slots is not the channel place of receiving node maintenance, then receiving node determines that this time slot is for taking.
29. device according to claim 27 is characterized in that, described definite device, if be used for current time slots and be the time slot at channel place of the maintenance of receiving node, and described sending node is not the node that receiving node is safeguarded, the seizure condition of this time slot is idle, then ignores this time slot.
30. device according to claim 27, it is characterized in that, described definite device, if be used for current time slots and be the time slot at the channel place that receiving node safeguards, and described sending node is not the node that receiving node is safeguarded, the seizure condition of this time slot is busy, but does not comprise the node ephemeral terminations sign that takies this time slot among the described FI, then receiving node is thought needs the channel occupancy failure of self to insert again.
31. device according to claim 27, it is characterized in that, described determining unit, if be used for current time slots and be the time slot at the channel place that receiving node safeguards, and described sending node is not the node that receiving node is safeguarded, the seizure condition of current time slots is for busy among the described FI, the ephemeral terminations sign that comprises the node that takies this time slot among the described FI, and described ephemeral terminations identifies identical with self temporary mark, and then receiving node thinks that the time slot that this sending node takies for oneself has given positive feedback.
32. device according to claim 27, it is characterized in that, described determining unit, if be used for current time slots and be the time slot at the channel place that receiving node safeguards, and described sending node is not the node that receiving node is safeguarded, the seizure condition of current time slots is for busy among the described FI, but comprise the ephemeral terminations sign that takies this time slot among the described FI, and described ephemeral terminations identifies different with self temporary mark, and then receiving node is thought needs access failure to insert again.
33. device according to claim 27, it is characterized in that, described determining unit, if be used for current time slots and be the time slot at the channel place that receiving node safeguards, and described sending node is the node that receiving node is safeguarded, the seizure condition of current time slots is idle among the described FI, and then receiving node is thought needs access failure to insert again.
34. device according to claim 27, it is characterized in that, described determining unit, if be used for current time slots and be the time slot at the channel place that receiving node safeguards, and described sending node is the node that receiving node is safeguarded, the seizure condition of current time slots is busy, but does not comprise the ephemeral terminations sign that takies this time slot among the described FI, and then receiving node thinks that this sending node has given positive feedback for the Time Slot Occupancy of oneself.
35. device according to claim 27, it is characterized in that, described determining unit, if be used for current time slots and be the time slot at the channel place that receiving node safeguards, and described sending node is the node that receiving node is safeguarded, the seizure condition of current time slots is for busy, comprise the ephemeral terminations sign that takies this time slot among the described FI, and described ephemeral terminations sign and self temporary mark are inequality, and then receiving node is thought needs channel maintenance failure to insert again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210025471.9A CN103248463B (en) | 2012-02-06 | 2012-02-06 | A kind of method and apparatus of transmission frame information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210025471.9A CN103248463B (en) | 2012-02-06 | 2012-02-06 | A kind of method and apparatus of transmission frame information |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103248463A true CN103248463A (en) | 2013-08-14 |
| CN103248463B CN103248463B (en) | 2016-01-20 |
Family
ID=48927702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210025471.9A Active CN103248463B (en) | 2012-02-06 | 2012-02-06 | A kind of method and apparatus of transmission frame information |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103248463B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103379541A (en) * | 2012-04-12 | 2013-10-30 | 电信科学技术研究院 | Frame information (FI) message transmission method and apparatus |
| CN103929824A (en) * | 2014-03-26 | 2014-07-16 | 中国人民解放军总参谋部第六十三研究所 | Wireless network node neutral access dynamic configuration method |
| CN104427617A (en) * | 2013-08-19 | 2015-03-18 | 电信科学技术研究院 | Resource indication and determination method and device |
| CN104581819A (en) * | 2013-10-25 | 2015-04-29 | 电信科学技术研究院 | Slot resource collision determination method and device |
| CN104918281A (en) * | 2014-03-10 | 2015-09-16 | 电信科学技术研究院 | Data transmission method and device |
| WO2015165355A1 (en) * | 2014-04-30 | 2015-11-05 | 电信科学技术研究院 | Method and device for maintaining timeslot state |
| CN106488564A (en) * | 2015-08-31 | 2017-03-08 | 电信科学技术研究院 | A kind of transmission method of frame information and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2178236A1 (en) * | 2008-10-14 | 2010-04-21 | Thomson Licensing | Method and apparatus of communication using adjustable group acknowledgement protocol |
| CN102123515A (en) * | 2011-03-10 | 2011-07-13 | 西安电子科技大学 | Superframe-based efficient media access control method in wireless body area network |
-
2012
- 2012-02-06 CN CN201210025471.9A patent/CN103248463B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2178236A1 (en) * | 2008-10-14 | 2010-04-21 | Thomson Licensing | Method and apparatus of communication using adjustable group acknowledgement protocol |
| CN102123515A (en) * | 2011-03-10 | 2011-07-13 | 西安电子科技大学 | Superframe-based efficient media access control method in wireless body area network |
Non-Patent Citations (2)
| Title |
|---|
| HARSH TRIVEDI1, PRAKASH VEERARAGHAVAN, SENG LOKE, HAI PHUONG LE,: "A Survey of Lower Layer Technologies for Vehicle-to-Vehicle Communication", 《PROCEEDINGS OF THE 2009 IEEE 9TH MALAYSIA INTERNATIONAL CONFERENCE ON COMMUNICATIONS》 * |
| SHANKAR YANAMANDRAM,HAMID SHAHNASSER: "Analysis of DSRC based MAC protocols for", 《ULTRA MODERN TELECOMMUNICATIONS&WORKSHOPS》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103379541A (en) * | 2012-04-12 | 2013-10-30 | 电信科学技术研究院 | Frame information (FI) message transmission method and apparatus |
| CN103379541B (en) * | 2012-04-12 | 2016-04-20 | 电信科学技术研究院 | A kind of transmission method of frame information FI message and device |
| CN104427617A (en) * | 2013-08-19 | 2015-03-18 | 电信科学技术研究院 | Resource indication and determination method and device |
| CN104427617B (en) * | 2013-08-19 | 2018-03-30 | 大唐电信科技产业控股有限公司 | A kind of resource instruction and determination method, apparatus |
| CN104581819A (en) * | 2013-10-25 | 2015-04-29 | 电信科学技术研究院 | Slot resource collision determination method and device |
| CN104918281A (en) * | 2014-03-10 | 2015-09-16 | 电信科学技术研究院 | Data transmission method and device |
| CN104918281B (en) * | 2014-03-10 | 2019-02-12 | 大唐电信科技产业控股有限公司 | A kind of method and device that data are sent |
| CN103929824A (en) * | 2014-03-26 | 2014-07-16 | 中国人民解放军总参谋部第六十三研究所 | Wireless network node neutral access dynamic configuration method |
| WO2015165355A1 (en) * | 2014-04-30 | 2015-11-05 | 电信科学技术研究院 | Method and device for maintaining timeslot state |
| CN106488564A (en) * | 2015-08-31 | 2017-03-08 | 电信科学技术研究院 | A kind of transmission method of frame information and device |
| CN106488564B (en) * | 2015-08-31 | 2019-09-17 | 大唐电信科技产业控股有限公司 | A kind of transmission method and device of frame information |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103248463B (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11516820B2 (en) | Resource allocation method for sidelink and terminal | |
| CN103248463A (en) | Frame information transmitting method and equipment | |
| CN103929823B (en) | Electric power wireless private network channel access control method based on business classification | |
| US8879528B2 (en) | Method for allocating resources, in a mobile and meshed communications network, with limitation of the inter-cluster interference, system and network implementing the method | |
| EP3285538B1 (en) | Scheduling methods, systems and access point | |
| US10542540B2 (en) | Network device and method for wireless local area network scheduling | |
| CN103687045A (en) | Method and device for service sending | |
| CN103313310A (en) | Method and equipment for frame information transmission and resource processing in self-organizing network | |
| US20170048878A1 (en) | Resource reuse method and apparatus | |
| CN101946552A (en) | Wireless communication method, base station, and wireless communication system | |
| KR101719734B1 (en) | Apparatus and method for managing slot | |
| US20230155915A1 (en) | Adaptive time slot allocation to reduce latency and power consumption in a time slotted channel hopping wireless communication network | |
| CN101291262A (en) | Voice communication method based on mobile sensor network | |
| CN104427617A (en) | Resource indication and determination method and device | |
| Cheng et al. | Taming collisions for delay reduction in low-duty-cycle wireless sensor networks | |
| KR20120019951A (en) | Gts allocation and management in low rate wireless personal area network | |
| CN111836370B (en) | Resource reservation method and equipment based on competition | |
| JP5244177B2 (en) | Method for managing transmissions in a wireless communication network | |
| US9473989B2 (en) | Method and apparatus for assigning slot | |
| EP2941083A1 (en) | Group resource release method, device and system | |
| JP2021502719A (en) | Network nodes and methods in a mesh network | |
| CN104581819A (en) | Slot resource collision determination method and device | |
| WO2013183020A1 (en) | Method of transmission between nodes of a manet communication network operating on an hf band with tdma sharing of the radio channel | |
| CN103686862A (en) | Method and device for applying for time slot resources | |
| Zhang et al. | Combining TDMA with slotted Aloha for delay constrained traffic over lossy links |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170410 Address after: 100191 Haidian District, Xueyuan Road, No. 1, No. 40, Patentee after: Datang Telecom Technology Industry Holding Co., Ltd. Address before: 100191 Haidian District, Xueyuan Road, No. 40, Patentee before: Inst of Telecommunication Science and Technolgoy |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211227 Address after: 400040 No. 35, Jinghe Road, Huxi street, high tech Zone, Shapingba District, Chongqing Patentee after: Datang Gaohong Zhilian Technology (Chongqing) Co.,Ltd. Address before: 100191 area 1, 40 Xueyuan Road, Haidian District, Beijing Patentee before: Datang Telecom Technology Industry Holding Co.,Ltd. |