CN110248419A - A kind of method and device that communication service is interrupted - Google Patents
A kind of method and device that communication service is interrupted Download PDFInfo
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- CN110248419A CN110248419A CN201811234744.4A CN201811234744A CN110248419A CN 110248419 A CN110248419 A CN 110248419A CN 201811234744 A CN201811234744 A CN 201811234744A CN 110248419 A CN110248419 A CN 110248419A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
- H04W76/34—Selective release of ongoing connections
- H04W76/36—Selective release of ongoing connections for reassigning the resources associated with the released connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses the method and devices that a kind of communication service is interrupted, which comprises first terminal is switched to reception state in the first time slot of target, and identifies whether receive interruption control frame in first time slot of target certainly；If so, the second time slot after stopping at first time slot of target sends the first traffic frame.Due in embodiments of the present invention, first terminal sends the first traffic frame in the second time slot, reception state is switched in the first time slot of target, control frame is interrupted for receiving, and when the first time slot of target receives and interrupts control frame, stop at the second time slot the first traffic frame of transmission after first time slot of target, realize that communication service is interrupted, so that first terminal is not necessarily to when carrying out communication service, interruption control frame is received in a manner of discarding traffic frame, to realize that communication service is interrupted, communication quality ensure that.
Description
Technical field
The present invention relates to the method and devices that field of communication technology more particularly to a kind of communication service interrupt.
Background technique
Digital mobile radio (Digital Mobile Radio, DMR) standard is European Telecommunications Standards Institute
A kind of completely new digital system that (European Telecommunications Standards Institute, ETSI) is promulgated
The professional wireless communication standard of formula, the double time slot time division multiple access of standard use (time division multiple access,
TDMA frame structure).Terminal with DMR standard utilizes the single time slot or double of TDMA usually in limited frequency resource
Time slot realizes one or more communication services.But since frequency resource is limited, if terminal finds to work as when initiating communication service
Communication service is re-initiated again after the frequencies to be used such as preceding frequency is used, and the strategy being usually taken is are idle.
However for the communication service of urgent communication service or higher priority, terminal needs to initiate communication service as early as possible, at this time
Just a kind of scheme is needed to interrupt current ongoing communication service, to initiate urgent or higher priority communication service.
For interrupt communication service, the prior art be usually arrange carry out communication service terminal send traffic frame when
It waits, discarding traffic frame is converted to reception state without transmission at set time intervals, control frame is interrupted for receiving,
If receiving interruption control frame, stop sending traffic frame, to interrupt communication service；If being not received by interruption control
Frame then begins to return to transmission state in next time slot, continues to send traffic frame, carries out communication service.
However, the prior art needs at set time intervals, discarding traffic frame is without sending, and with centering
The time interval of the raising of open close communication service delay requirement, setting can reduce, and lead to more frequent discarding traffic frame, unavoidably
The reduction for leading to communication quality.
Summary of the invention
The present invention provides a kind of method and device that communication service is interrupted, and discarding traffic exists in the prior art to solve
Frame, the problem of causing communication quality to reduce.
In a first aspect, being applied to first terminal, the method packet the invention discloses a kind of method that communication service is interrupted
It includes:
The first terminal is switched to reception state in the first time slot of target, and identifies from first time slot of target
Whether interruption control frame is received；
If so, the second time slot after stopping at first time slot of target sends the first traffic frame.
Further, the first terminal is switched to reception state in the first time slot of target, comprising:
The first terminal is switched to reception state in the first time slot of target, receives interrupt control frame on the first frequency channel,
Wherein, the first frequency is different from the second frequency that the first terminal sends traffic frame use.
Further, the first terminal is before the first time slot of target is switched to reception state, the method also includes:
According to the preset reception period, judge whether current first time slot is the first time slot of target, if so, described
Whether first terminal is switched to reception state in the first time slot of target, and identify from receiving in first time slot of target
Disconnected control frame.
Further, if receiving interruption control frame in first time slot of target, the method also includes:
The second time slot after first time slot of target sends postamble and controls information frame, and instruction receives first industry
The third terminal of business frame stops receiving first traffic frame.
Second aspect, the invention discloses a kind of methods that communication service is interrupted, and are applied to second terminal, the method packet
It includes:
Judge whether the second frequency for carrying out the second traffic frame transmission is occupied by other terminals；
Control frame is interrupted if so, sending in the first time slot of target to the first terminal for occupying the second frequency, makes institute
It states the second time slot that first terminal stops at after first time slot of target and sends the first traffic frame.
Further, described send in the first time slot of target to the first terminal for occupying the second frequency interrupts control
Frame, comprising:
First frequency is used in the first time slot of target, is sent to the first terminal for occupying the second frequency and interrupts control
Frame, wherein the first frequency is different from the second frequency.
Further, described send in the first time slot of target to the first terminal for occupying the second frequency interrupts control frame
Before, the method also includes:
According to the preset reception period, judge whether current first time slot is the first time slot of target, if so, in mesh
It marks the first time slot and sends interruption control frame to the first terminal for occupying the second frequency.
Further, described send in the first time slot of target to the first terminal for occupying the second frequency interrupts control frame
Before, the method also includes:
Judge whether second traffic frame corresponds to urgency traffic, and/or judges that second traffic frame is corresponding
Whether communication service priority is higher than the corresponding communication service priority of first traffic frame；
Be if there is at least one it is yes, in the first time slot of target is sent to the first terminal for occupying the second frequency
Disconnected control frame.
The third aspect, the invention discloses the devices that a kind of communication service is interrupted, and are applied to first terminal, described device packet
It includes:
Identification module is switched to reception state in the first time slot of target for the first terminal, and identifies from institute
It states whether the first time slot of target receives interruption control frame, and when recognition result, which is, is, triggers interrupt module；
Interrupt module sends the first traffic frame for stopping at the second time slot after first time slot of target.
Further, the identification module is switched to reception shape in the first time slot of target specifically for the first terminal
State receives interrupt control frame on the first frequency channel, wherein the first frequency and the first terminal send what traffic frame used
Second frequency is different.
Further, described device further include:
Judgment module is used for according to the preset reception period, when judging whether current first time slot is target the first
Gap, if it is judged that being yes, triggering identification module.
Further, described device further include:
Sending module, if for receiving interruption control frame in first time slot of target, in the target the first
The second time slot after gap sends postamble and controls information frame, and the third terminal that instruction receives first traffic frame stops receiving institute
State the first traffic frame.
Fourth aspect, the invention discloses the devices that a kind of communication service is interrupted, and are applied to second terminal, described device packet
It includes:
First judgment module, for judging whether the second frequency for carrying out the second traffic frame transmission is occupied by other terminals,
If it is judged that being yes, triggering sending module；
Sending module interrupts control for sending in the first time slot of target to the first terminal for occupying the second frequency
Frame, the second time slot after making the first terminal stop at first time slot of target send the first traffic frame.
Further, the sending module is specifically used for using first frequency in the first time slot of target, to occupying described the
The first terminal of two frequencies, which is sent, interrupts control frame, wherein the first frequency is different from the second frequency.
Further, described device further include:
Second judgment module, for according to the preset reception period, judging whether current first time slot is target the
One time slot, if it is judged that being yes, triggering sending module.
Further, described device further include:
Third judgment module, for judging whether second traffic frame corresponds to urgency traffic, and/or described in judgement
Whether the corresponding communication service priority of the second traffic frame is higher than the corresponding communication service priority of first traffic frame；If
It is yes, triggering sending module there are at least one.
The invention discloses the method and devices that a kind of communication service is interrupted, which comprises first terminal is in target
First time slot is switched to reception state, and identifies whether receive interruption control frame in first time slot of target certainly；If
It is the second time slot the first traffic frame of transmission after stopping at first time slot of target.Due in embodiments of the present invention,
One terminal only sends the first traffic frame in the second time slot, is switched to reception state in the first time slot of target, interrupts control for receiving
Frame processed, and when the first time slot of target receives and interrupts control frame, stop at the second time slot after first time slot of target
The first traffic frame is sent, realizes that communication service is interrupted, so that first terminal is not necessarily to when carrying out communication service, with discarding traffic frame
Mode receive interruption control frame, to realize communication service interrupt, ensure that communication quality.
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 only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the process schematic that a kind of communication service provided in an embodiment of the present invention is interrupted；
Fig. 2 is a kind of working time slot schematic diagram of terminal based on the bis- time slot work of TDMA provided in an embodiment of the present invention；
Fig. 3 be a kind of straight-through/off-grid provided in an embodiment of the present invention communication pattern under communication system architecture schematic diagram；
Fig. 4 is a kind of frame format schematic diagram for interrupting control frame provided in an embodiment of the present invention；
Fig. 5 be it is provided in an embodiment of the present invention it is a kind of relaying/under the communication pattern of net communication system architecture schematic diagram；
Fig. 6 is the process schematic that a kind of communication service provided in an embodiment of the present invention is interrupted；
Fig. 7 is the apparatus structure schematic diagram that a kind of communication service provided in an embodiment of the present invention is interrupted；
Fig. 8 is the apparatus structure schematic diagram that a kind of communication service provided in an embodiment of the present invention is interrupted.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, make below in conjunction with the attached drawing present invention into one
Step ground detailed description, it is clear that described embodiment is only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Fig. 1 is the process schematic that a kind of communication service provided in an embodiment of the present invention is interrupted, which includes:
S101: first terminal is switched to reception state in the first time slot of target, and when identifying from the target the first
Whether gap receives interruption control frame, if so, S102 is carried out, if it is not, then terminating.
S102: the second time slot the first traffic frame of transmission after first time slot of target is stopped at.
The method that communication service provided in an embodiment of the present invention is interrupted is applied to first terminal, wherein the first terminal can
Think the equipment such as intercom.Specifically, the method that communication service provided in an embodiment of the present invention is interrupted, can apply and be not present
The communication pattern of straight-through/off-grid between the terminal of trunk desk, can also apply relaying between the terminal there are trunk desk/
In the communication pattern of net.
Fig. 2 is a kind of working time slot schematic diagram of terminal based on the bis- time slot work of TDMA provided in an embodiment of the present invention,
As shown in Fig. 2, double time slots of TDMA are indicated by time slot 0 and time slot 1 respectively, each TDMA period includes a time slot 0 and one
Time slot 1.The first time slot can be time slot 0 in embodiments of the present invention, or time slot 1, the first time slot and the second time slot are not
Together, i.e., when the first time slot is time slot 0, the second time slot is time slot 1；When the first time slot is time slot 1, the second time slot is time slot 0.
It furthermore in embodiments of the present invention, can be using all first time slots as the first time slot of target, when can also be by the first of setting
Gap is as the first time slot of target.
In embodiments of the present invention, the first terminal is switched to reception state in the first time slot of target, comprising:
The first terminal is switched to reception state in the first time slot of target, receives interrupt control frame on the first frequency channel.
Specifically, first terminal is only transmission state in the second time slot, the first traffic frame is sent using second frequency, is carried out
First communication service of first terminal；It is switched to reception state in the first time slot of target, using first frequency, for receiving possibility
The interruption control frame of appearance；Second terminal carries out the second of second terminal if necessary to send the second traffic frame in second frequency
Communication service needs to interrupt the first communication service of first terminal, so that the second time slot of first terminal release busy and second
The resource of frequency.
Second terminal detects that the second frequency for carrying out the second traffic frame transmission is occupied in the second time slot by first terminal, the
Two terminals are sent using first frequency in the first time slot of target and interrupt control frame.If first terminal connects in the first time slot of target
Interruption control frame is received, the second time slot the first traffic frame of transmission after first time slot of target is stopped at, interrupts progress
First communication service, stops to the occupancy of the second time slot and second frequency, allows second terminal in the second time slot, using the
Two frequencies carry out the transmission of the second traffic frame, carry out the second communication service of second terminal.In embodiments of the present invention, described
One frequency and the second frequency can be the same or different, preferably, in order to avoid communication contention aware and interference, described second
Frequency and first frequency difference.
In addition, in embodiments of the present invention, second terminal is only in second terminal in order to guarantee that communication service normally carries out
The second traffic frame for needing to send corresponds to urgency traffic and/or the corresponding communication service priority of the second traffic frame and is higher than the
When the corresponding communication service priority of the first traffic frame of one terminal, is just sent to first terminal and interrupt control frame.
Since in embodiments of the present invention, first terminal only sends the first traffic frame in the second time slot, in target the first
Gap is switched to reception state, interrupts control frame for receiving, and when the first time slot of target receives and interrupts control frame, stops at
The second time slot after first time slot of target sends the first traffic frame, realizes what communication service was interrupted, so that first terminal
Without receiving interruption control frame in a manner of discarding traffic frame when carrying out communication service, to realize that communication service is interrupted, protect
Communication quality is demonstrate,proved.
In addition, in embodiments of the present invention, it is different from the time slot of traffic frame is sent due to sending the time slot for interrupting control, because
This can more frequently send interruption control frame, to guarantee the timeliness that communication service is interrupted.
For the ease of knowing to first terminal traffic state, on the basis of the above embodiments, of the invention real
It applies in example, if described receive interruption control frame in first time slot of target, the method also includes:
The second time slot after first time slot of target sends postamble and controls information frame, and instruction receives first industry
The third terminal of business frame stops receiving first traffic frame.
If needing to stop at target specifically, first terminal receives interruption control frame in the first time slot of target
The second time slot after one time slot sends the first traffic frame, for the ease of receiving the third terminal of the first traffic frame to first terminal
Traffic state is known, if first terminal receives interruption control frame in the first time slot of target, in the target first
The second time slot after time slot sends postamble and controls information frame, for informing the third terminal for receiving the first traffic frame, the first industry
The transmission of business frame stops, and then indicates that third terminal stops receiving the first traffic frame.Specifically, first terminal is in the target
The second time slot after one time slot sends postamble using second frequency and controls information frame.In embodiments of the present invention, first is received
The third terminal for the first traffic frame that terminal is sent can be one or multiple, wherein above-mentioned second terminal can also be with
For any one in third terminal.
Illustratively, as shown in figure 3, there is no the communications under the communication pattern of straight-through/off-grid between the terminal of trunk desk
The communication service of system is illustrated for interrupting.Parsing explanation is carried out to the part term that Fig. 3 is related to first, so as to this field
Technical staff understands, wherein first terminal is terminal A, and second terminal is terminal C, receives the first traffic frame that terminal A is sent
Third terminal include terminal B and terminal C, the second time slot be time slot 0, the first time slot is time slot 1, second frequency is RF2 frequency,
One frequency is RF1 frequency.
Specifically, step 1: terminal A sends the first traffic frame using RF2 frequency in the time slot 0 of double time slot tdmas, carries out the
One communication service is switched to reception state in time slot 1, using RF1 frequency for receiving the interruption control frame being likely to occur, terminal
B and terminal C is in time slot 0, the first traffic frame sent using RF2 frequency reception terminal A, and wherein RF2 frequency and RF1 frequency can be with
It is identical to can also be different, preferably, in order to avoid with may be communicated with other of time slot 1 generate conflict and interference, pay the utmost attention to
RF2 frequency is different with RF1 frequency.
Step 2: if terminal C needs to send the second traffic frame using RF2 frequency in the time slot 0 of current double time slots, carrying out
Second communication service, at this point, the RF2 frequency of time slot 0 is occupied by terminal A, frequency error factor is RF1 in time slot 1 by terminal C
Frequency.
Step 3: terminal C, which is generated, interrupts control frame, is illustrated in figure 4 a kind of interruption control frame provided in an embodiment of the present invention
Frame format schematic diagram, wherein LB be frame structure indicate mark, in the highest order of byte (Byte) 0, being fixedly installed is 1；PF is
Reservation flag position, in 6 position of bit (bit) of Byte 0, being fixedly installed is 0；CSBKO is the minimum 6bit of Byte 0, can be with
It is set as 000100；Byte 1 is defined as FID mark, and defining privately owned mark segment is 00010001；Byte 2 is service option
(Service Options), field definition 00000010, the field identification are currently transmitted for interruption control frame；Byte 3 is
Retain information field, does not use temporarily, default setting 00000000；4~Byte of Byte 6 defines the mesh of the interruption control frame
The reception address of tag splice debit, address are 24bit bit wide, and intended recipient is terminal A in this example；7~Byte of Byte 9
Defining the information is to interrupt the address of the initiator of control frame, and address is 24bit bit wide, and initiator is terminal C in this example；
10~Byte11 of Byte is frame check position, using CRC16 or other verification modes.
Step 4: terminal C time slot 1 using RF1 frequency send generate interruption control frame, at this point, terminal A time slot 0
It is switched to reception pattern, and is in RF1 frequency and parses frame information after terminal A receives interruption control frame, confirm frame information
It is whether identical as the source address information of terminal A to receive address, then successively confirms the words such as CSKBO, FID and Service Options
Whether segment information content is the content for interrupting control frame, is verified to the content for interrupting control frame.
Step 5: if verifying is wrong, terminal A continues to send the first traffic frame in time slot 0 later.
Step 6: if verifying is errorless, the time slot 0 after terminal A is stopped at sends the first traffic frame, and sends frame immediately
Tail controls information frame, and the terminal B and terminal C that instruction receives the first traffic frame that terminal A is sent stop receiving the first traffic frame, the
First communication service of one terminal terminates.
Step 7: terminal C confirms terminal A after receiving the traffic frame trailer information that terminal A is sent on time slot 0, RF2 frequency
The first current communication service is stopped.
Step 8: terminal C interrupts the first communication service success of terminal A, can carry out oneself using RF2 frequency in time slot 0
Urgency traffic or high priority communication service the second traffic frame transmission.
In order to guarantee being normally carried out for communication service, on the basis of the various embodiments described above, the first terminal is in target
First time slot is switched to before reception state, the method also includes:
According to the preset reception period, judge whether current first time slot is the first time slot of target, if so, described
Whether first terminal is switched to reception state in the first time slot of target, and identify from receiving in first time slot of target
Disconnected control frame.
In embodiments of the present invention, first terminal can also be according to the preset reception period, to determine target first
Time slot, wherein the preset reception period can be a TDMA period, two TDMA periods, five TDMA periods
Deng, and only in the first time slot of target, using first frequency, for receiving the interruption control frame being likely to occur.
Illustratively, as shown in figure 5, there are relaying/communication systems under the communication pattern of net between the terminal of trunk desk
The communication service of system interrupt for the reception period according to setting, determine the first time slot of target, realize communication service interrupt into
Row explanation.Parsing explanation is carried out to the part term that Fig. 5 is related to first, so as to it will be appreciated by those skilled in the art that wherein, first eventually
End is terminal A, and the third terminal for the first traffic frame that second terminal is terminal C, reception terminal A is sent includes terminal B and terminal
C, the second time slot is time slot 0, the first time slot is time slot 1, second frequency is RF2 frequency, first frequency is RF1 frequency, third frequency
Rate is RF3 frequency.
Specifically, step 1: terminal A sends the first traffic frame using RF2 frequency in the time slot 0 of double time slot tdmas, carries out the
One communication service, and according to the preset period, determine whether current time slots 1 are target time slot 1, and be in current time slots 1
When target time slot 1, it is switched to reception state, using RF1 frequency for receiving the interruption control frame being likely to occur, trunk desk exists
After the first traffic frame that RF2 frequency reception is sent to terminal A, be forwarded using RF3 frequency, terminal B and terminal C in time slot 0,
The first traffic frame forwarded using RF3 frequency reception trunk desk, preferably, in embodiments of the present invention, in order to prevent with relaying
The RF3 frequency conflicts that platform uses, RF1 are different from RF3.
Step 2: if terminal C needs to send the second traffic frame using RF2 frequency in the time slot 0 of current double time slots, carrying out
Second communication service, at this point, the RF2 frequency of time slot 0 is occupied by terminal A, frequency error factor is RF1 in time slot 1 by terminal C
Frequency.
Step 3: terminal C, which is generated, interrupts control frame, is illustrated in figure 4 a kind of interruption control frame provided in an embodiment of the present invention
Frame format schematic diagram, wherein LB be frame structure indicate mark, in the highest order of byte (Byte) 0, being fixedly installed is 1；PF is
Reservation flag position, in 6 position of bit (bit) of Byte 0, being fixedly installed is 0；CSBKO is the minimum 6bit of Byte 0, can be with
It is set as 000100；Byte 1 is defined as FID mark, and defining privately owned mark segment is 00010001；Byte 2 is service option
(Service Options), field definition 00000010, the field identification are currently transmitted for interruption control frame；Byte 3 is
Retain information field, does not use temporarily, default setting 00000000；4~Byte of Byte 6 defines the mesh of the interruption control frame
The reception address of tag splice debit, address are 24bit bit wide, and intended recipient is terminal A in this example；7~Byte of Byte 9
Defining the information is to interrupt the address of the initiator of control frame, and address is 24bit bit wide, and initiator is terminal C in this example；
10~Byte11 of Byte is frame check position, using CRC16 or other verification modes.
Step 4: terminal C sends the interruption control frame generated in time slot 1 using RF1 frequency, at this point, terminal A is cut in time slot 1
Reception pattern is changed to, and according to the preset period, using RF1 frequency for receiving the interruption control frame being likely to occur.
Since terminal A is switched to reception pattern in time slot 1, and according to the preset period, using RF1 frequency for connecing
The interruption control frame being likely to occur is received, therefore terminal C needs to continuously transmit multiple interruption control frames in multiple time slots 1, it is ensured that eventually
End A can receive interruption control frame, and the number that terminal C sends interruption control frame is determined according to the terminal A preset period,
Such as if terminal A waits for RF1 frequency using a time slot 1 on timeslot 1, a time slot 1 is other back to RF3 frequency reception
Using two TDMA periods as the preset period, terminal C needs at least to continuously transmit for the alternation method of information, i.e. terminal A
Interrupting control frame twice just can ensure that terminal C can have correctly received interruption control frame.Preferably, terminal C can also be according to pre-
The period first set determines the first time slot of target, and sends in the first time slot of target and interrupt control frame.Terminal A receives interruption
After control frame, frame information is parsed, confirms whether the reception address of frame information is identical as the source address information of terminal A, then successively really
Recognize CSKBO, whether the field informations such as FID and Service Options content is the content for interrupting control frame, to interruption control frame
Content verified.
Step 5: if verifying is wrong, terminal A continues to send the first traffic frame in time slot 0 later.
Step 6: if verifying is errorless, the time slot 0 after terminal A is stopped at sends the first traffic frame, and sends frame immediately
Tail controls information frame, is used to indicate terminal B and terminal C stopping the first business of reception for receiving the first traffic frame that terminal A is sent
First communication service of frame, first terminal terminates.
Step 7: after trunk desk receives the postamble control frame of terminal A transmission in the RF2 frequency of time slot 0, in RF3 frequency
It is forwarded, terminal C confirms terminal after time slot 0, the postamble control information frame forwarded using RF3 frequency reception to trunk desk R
A has stopped the first current communication service.
Step 8: terminal C interrupts the first communication service success of terminal A, can carry out certainly in time slot 0 using in RF2 frequency
The transmission of second traffic frame of the communication service of oneself urgency traffic or high priority.
The specific target time slot being utilized on adjacent time slot in the embodiment of the present invention carries out interrupt control information frame
It sends, but since other agreed frequencies can be used to be communicated, so not influencing between other communication terminals of the time slot
Normal intercommunication.
Fig. 6 is the process schematic that a kind of communication service provided in an embodiment of the present invention is interrupted, which includes:
S601: judging whether the second frequency for carrying out the second traffic frame transmission is occupied by other terminals, if it is judged that
It is yes, progress S602, if it is not, then terminating.
S602: sending to the first terminal for occupying the second frequency in the first time slot of target and interrupt control frame, makes described
First terminal stops at the second time slot the first traffic frame of transmission after first time slot of target.
The method that communication service provided in an embodiment of the present invention is interrupted is applied to second terminal, wherein the second terminal can
Think the equipment such as intercom.Specifically, the method that communication service provided in an embodiment of the present invention is interrupted, can apply and be not present
The communication pattern of straight-through/off-grid between the terminal of trunk desk, can also apply relaying between the terminal there are trunk desk/
In the communication pattern of net.
Fig. 2 is a kind of working time slot schematic diagram of terminal based on the bis- time slot work of TDMA provided in an embodiment of the present invention,
As shown in Fig. 2, double time slots of TDMA are indicated by time slot 0 and time slot 1 respectively, each TDMA period includes a time slot 0 and one
Time slot 1.The first time slot can be time slot 0 in embodiments of the present invention, or time slot 1, the first time slot and the second time slot are not
Together, i.e., when the first time slot is time slot 0, the second time slot is time slot 1；When the first time slot is time slot 1, the second time slot is time slot 0.
It furthermore in embodiments of the present invention, can be using all first time slots as the first time slot of target, when can also be by the first of setting
Gap is as the first time slot of target.
In embodiments of the present invention, described in the first time slot of target is sent to the first terminal for occupying the second frequency
Disconnected control frame, comprising:
First frequency is used in the first time slot of target, is sent to the first terminal for occupying the second frequency and interrupts control
Frame.
Specifically, first terminal is only transmission state in the second time slot, the first traffic frame is sent using second frequency, is carried out
First communication service of first terminal；It is switched to reception state in the first time slot of target, using first frequency, for receiving possibility
The interruption control frame of appearance；Second terminal carries out the second of second terminal if necessary to send the second traffic frame in second frequency
Communication service needs to interrupt the first communication service of first terminal, so that the second time slot of first terminal release busy and second
The resource of frequency.
Second terminal detects that the second frequency for carrying out the second traffic frame transmission is occupied in the second time slot by first terminal, the
Two terminals are sent using first frequency in the first time slot of target and interrupt control frame.If first terminal connects in the first time slot of target
Interruption control frame is received, the second time slot the first traffic frame of transmission after first time slot of target is stopped at, interrupts progress
First communication service, stops to the occupancy of the second time slot and second frequency, allows second terminal in the second time slot, using the
Two frequencies carry out the transmission of the second traffic frame, carry out the second communication service of second terminal.In embodiments of the present invention, described
One frequency and the second frequency can be the same or different, preferably, in order to avoid communication contention aware and interference, described second
Frequency and first frequency difference.
In addition, in order to guarantee that communication service normally carries out, in embodiments of the present invention, it is described the first time slot of target to
The first terminal for occupying the second frequency is sent before interrupting control frame, the method also includes:
Judge whether second traffic frame corresponds to urgency traffic, and/or judges that second traffic frame is corresponding
Whether communication service priority is higher than the corresponding communication service priority of first traffic frame；
Be if there is at least one it is yes, in the first time slot of target is sent to the first terminal for occupying the second frequency
Disconnected control frame.
Specifically, second terminal only second terminal need the second traffic frame for sending correspond to urgency traffic and/or
When the corresponding communication service priority of second traffic frame is higher than the first traffic frame corresponding communication service priority of first terminal,
It is just sent to first terminal and interrupts control frame.
Since in embodiments of the present invention, first terminal only sends the first traffic frame in the second time slot, in target the first
Gap is switched to reception state, interrupts control frame for receiving, and when the first time slot of target receives and interrupts control frame, stops at
The second time slot after first time slot of target sends the first traffic frame, realizes what communication service was interrupted, so that first terminal
Without receiving interruption control frame in a manner of discarding traffic frame when carrying out communication service, to realize that communication service is interrupted, protect
Communication quality is demonstrate,proved.
It is described in the first time slot of target on the basis of the various embodiments described above in order to guarantee being normally carried out for communication service
It is sent before interrupting control frame to the first terminal for occupying the second frequency, the method also includes:
According to the preset reception period, judge whether current first time slot is the first time slot of target, if so, in mesh
It marks the first time slot and sends interruption control frame to the first terminal for occupying the second frequency.
In order to guarantee accuracy that communication service is interrupted, in embodiments of the present invention, second terminal is according to can also be according to
The preset reception period, to determine the first time slot of target, wherein the preset reception period can be one
TDMA period, two TDMA periods, five TDMA periods etc..Specifically, being set in advance in second terminal in embodiments of the present invention
The fixed reception period is identical as the first terminal preset reception period.
Fig. 7 is the apparatus structure schematic diagram that a kind of communication service provided in an embodiment of the present invention is interrupted, and is applied to first eventually
End, the device include:
Identification module 71 is switched to reception state in the first time slot of target for the first terminal, and identify from
Whether first time slot of target receives interruption control frame, and when recognition result, which is, is, triggers interrupt module；
Interrupt module 72 sends the first traffic frame for stopping at the second time slot after first time slot of target.
The identification module 71 is switched to reception state in the first time slot of target specifically for the first terminal,
It is received in one frequency and interrupts control frame, wherein the first frequency and the first terminal send the second frequency that traffic frame uses
Rate is different.
Described device further include:
Judgment module 73, for judging whether current first time slot is target first according to the preset reception period
Time slot, if it is judged that being yes, triggering identification module.
Described device further include:
Sending module 74, if for receiving interruption control frame in first time slot of target, in the target first
The second time slot after time slot sends postamble and controls information frame, and the third terminal that instruction receives first traffic frame stops receiving
First traffic frame.
Fig. 8 is the apparatus structure schematic diagram that a kind of communication service provided in an embodiment of the present invention is interrupted, and is applied to second eventually
End, the device include:
First judgment module 81, for judging whether the second frequency for carrying out the second traffic frame transmission is accounted for by other terminals
With if it is judged that being yes, triggering sending module；
Sending module 82 interrupts control for sending in the first time slot of target to the first terminal for occupying the second frequency
Frame, the second time slot after making the first terminal stop at first time slot of target send the first traffic frame.
The sending module 82 is specifically used for using first frequency in the first time slot of target, to the occupancy second frequency
First terminal send interrupt control frame, wherein the first frequency is different from the second frequency.
Described device further include:
Second judgment module 83, for judging whether current first time slot is target according to the preset reception period
First time slot, if it is judged that being yes, triggering sending module.
Described device further include:
Third judgment module 84 for judging whether second traffic frame corresponds to urgency traffic, and/or judges institute
State whether the corresponding communication service priority of the second traffic frame is higher than the corresponding communication service priority of first traffic frame；Such as
It is yes, triggering sending module that fruit, which has at least one,.
The invention discloses the method and devices that a kind of communication service is interrupted, which comprises first terminal is in target
First time slot is switched to reception state, and identifies whether receive interruption control frame in first time slot of target certainly；First
Terminal is switched to reception state in the first time slot of target, and identifies from first time slot of target whether receive interruption control
Frame processed；Since in embodiments of the present invention, first terminal sends the first traffic frame in the second time slot, it is switched to and connects in the first time slot
Receipts state interrupts control frame for receiving, and when the first time slot of target receives and interrupts control frame, stops at the target the
The second time slot after one time slot sends the first traffic frame, realizes what communication service was interrupted, so that first terminal is without carrying out
When communication service, interruption control frame is received in a manner of discarding traffic frame, to realize that communication service is interrupted, ensure that communication matter
Amount.
For systems/devices embodiment, since it is substantially similar to the method embodiment, so the comparison of description is simple
Single, the relevent part can refer to the partial explaination of embodiments of method.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although the preferred embodiment of the application has been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the application range.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (16)
1. a kind of method that communication service is interrupted, which is characterized in that be applied to first terminal, which comprises
The first terminal is switched to reception state in the first time slot of target, and identify from first time slot of target whether
Receive interruption control frame；
If so, the second time slot after stopping at first time slot of target sends the first traffic frame.
2. the method as described in claim 1, which is characterized in that the first terminal is switched to reception shape in the first time slot of target
State, comprising:
The first terminal is switched to reception state in the first time slot of target, receives interrupt control frame on the first frequency channel, wherein
The first frequency is different from the second frequency that the first terminal sends traffic frame use.
3. the method as described in claim 1, which is characterized in that the first terminal is switched to reception shape in the first time slot of target
Before state, the method also includes:
According to the preset reception period, judge whether current first time slot is the first time slot of target, if so, described first
Terminal is switched to reception state in the first time slot of target, and identifies from first time slot of target whether receive interruption control
Frame processed.
4. the method as described in claim 1, which is characterized in that if receiving interruption control in first time slot of target
Frame, the method also includes:
The second time slot after first time slot of target sends postamble and controls information frame, and instruction receives first traffic frame
Third terminal stop receiving first traffic frame.
5. a kind of method that communication service is interrupted, which is characterized in that be applied to second terminal, which comprises
Judge whether the second frequency for carrying out the second traffic frame transmission is occupied by other terminals；
Control frame is interrupted if so, sending in the first time slot of target to the first terminal for occupying the second frequency, makes described the
One terminal stops at the second time slot the first traffic frame of transmission after first time slot of target.
6. method as claimed in claim 5, which is characterized in that it is described in the first time slot of target to occupying the second frequency
First terminal, which is sent, interrupts control frame, comprising:
First frequency is used in the first time slot of target, is sent to the first terminal for occupying the second frequency and interrupts control frame,
Described in first frequency it is different from the second frequency.
7. method as claimed in claim 5, which is characterized in that it is described in the first time slot of target to occupying the second frequency
First terminal is sent before interrupting control frame, the method also includes:
According to the preset reception period, judge whether current first time slot is the first time slot of target, if so, in target
One time slot sends to the first terminal for occupying the second frequency and interrupts control frame.
8. method as claimed in claim 5, which is characterized in that it is described in the first time slot of target to occupying the second frequency
First terminal is sent before interrupting control frame, the method also includes:
Judge whether second traffic frame corresponds to urgency traffic, and/or judges the corresponding communication of second traffic frame
Whether service priority is higher than the corresponding communication service priority of first traffic frame；
Be if there is at least one it is yes, sent in the first time slot of target to the first terminal for occupying the second frequency and interrupt control
Frame processed.
9. the device that a kind of communication service is interrupted, which is characterized in that be applied to first terminal, described device includes:
Identification module is switched to reception state in the first time slot of target for the first terminal, and identifies from the mesh
It marks whether the first time slot receives interruption control frame, and when recognition result, which is, is, triggers interrupt module；
Interrupt module sends the first traffic frame for stopping at the second time slot after first time slot of target.
10. device as claimed in claim 9, which is characterized in that the identification module is specifically used for the first terminal in mesh
It marks the first time slot and is switched to reception state, receive interrupt control frame on the first frequency channel, wherein the first frequency and described the
It is different that one terminal sends the second frequency that traffic frame uses.
11. device as claimed in claim 9, which is characterized in that described device further include:
Judgment module, for judging whether current first time slot is the first time slot of target, such as according to the preset reception period
Fruit judging result is yes, triggering identification module.
12. device as claimed in claim 9, which is characterized in that described device further include:
Sending module, if for receiving interruption control frame in first time slot of target, first time slot of target it
Rear the second time slot sends postamble and controls information frame, and the third terminal that instruction receives first traffic frame stops receiving described the
One traffic frame.
13. the device that a kind of communication service is interrupted, which is characterized in that be applied to second terminal, described device includes:
First judgment module, for judging whether the second frequency for carrying out the second traffic frame transmission is occupied by other terminals, if
Judging result is yes, triggering sending module；
Sending module interrupts control frame for sending in the first time slot of target to the first terminal for occupying the second frequency, makes
The first terminal stops at the second time slot the first traffic frame of transmission after first time slot of target.
14. device as claimed in claim 13, which is characterized in that the sending module is specifically used in the first time slot of target
Using first frequency, is sent to the first terminal for occupying the second frequency and interrupt control frame, wherein the first frequency and institute
State second frequency difference.
15. device as claimed in claim 13, which is characterized in that described device further include:
Second judgment module is used for according to the preset reception period, when judging whether current first time slot is target the first
Gap, if it is judged that being yes, triggering sending module.
16. device as claimed in claim 13, which is characterized in that described device further include:
Third judgment module for judging whether second traffic frame corresponds to urgency traffic, and/or judges described second
Whether the corresponding communication service priority of traffic frame is higher than the corresponding communication service priority of first traffic frame；If there is
At least one is yes, triggering sending module.
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|---|---|---|---|
| CN201811234744.4A CN110248419B (en) | 2018-10-23 | 2018-10-23 | Method and device for interrupting communication service |
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