CN107277926A - A kind of digital trunking system channel moving method and device - Google Patents
A kind of digital trunking system channel moving method and device Download PDFInfo
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- CN107277926A CN107277926A CN201710482138.3A CN201710482138A CN107277926A CN 107277926 A CN107277926 A CN 107277926A CN 201710482138 A CN201710482138 A CN 201710482138A CN 107277926 A CN107277926 A CN 107277926A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
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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
Abstract
The present invention relates to a kind of digital trunking system channel moving method and device.This method includes：The available free Traffic Channel of the first channel device is detected, the quantity for being detected simultaneously by Traffic Channel in running order in second channel machine is less than or equal to the data of the idle business channel；By the idle business channel of the business migration of the second channel machine to first channel device, the secondary signal machine enters resting state.By implementing the present invention, channel device power consumption is reduced using business channel emigration, so as to reduce group system power consumption.
Description
Technical field
The present invention relates to the group system communications field, more specifically to a kind of digital trunking system channel migration side
Method and device.
Background technology
Multiple Traffic Channels are generally there are under group system base station, common number group system (PDT) uses time division multiple acess
There are two logical traffics in mode a, physical traffic channels, Traffic Channel is used to carry talk business.
After speech business is set up in existing common number group system, keep constant using the Traffic Channel after distribution, directly
Terminate to whole speech business.Using this Traffic Channel occupation mode, because Traffic Channel begins before whole speech business terminates
It is constant eventually, it can cause two-way talk business two channel devices of occupancy occur, even if two channel devices are simultaneously in running order, this
Sample can cause system power dissipation to increase, and especially use system in movement.
The content of the invention
The technical problem to be solved in the present invention is, for prior art above-mentioned existing channel machine traffic channel assignments not
Rationally causing the big defect of system power dissipation, there is provided a kind of digital trunking system channel moving method and device.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of digital trunking system channel migration side
Method, comprises the following steps：
S1：The available free Traffic Channel of the first channel device is detected, is detected simultaneously by running order in second channel machine
Traffic Channel quantity be less than or equal to the idle business channel data；
S2：By the idle business channel of the business migration of the second channel machine to first channel device, described second
Semaphore enters resting state.
Preferably, digital trunking system channel moving method of the present invention, first channel device and second channel
Machine includes two Traffic Channels respectively；
The step S1 includes：
S11：Detect the one of Traffic Channel of the first channel device in running order, be detected simultaneously by the second letter
Machine one of Traffic Channel in road is in running order.
Preferably, digital trunking system channel moving method of the present invention, before the step S2 is performed, is also wrapped
Include：
S12：Judge whether the remaining air time of first channel device and second channel machine is more than threshold time；
If so, then performing the step S2.
Preferably, digital trunking system channel moving method of the present invention, passage time timer obtains described the
The remaining air time of one channel device and second channel machine.
Preferably, digital trunking system channel moving method of the present invention, before the business migration, is also wrapped
Include：
S21：Judge whether the Traffic Channel of first channel device and second channel machine migrated business；
S22：If so, the channel device for the business that migrated then is migrated into business according to the direction opposite with former migratory direction.
Preferably, digital trunking system channel moving method of the present invention, before the step S1, in addition to：
S0：The explorer of base station control unit, which records first channel device and the channel resource of second channel machine, to be made
Use situation.
Preferably, digital trunking system channel moving method of the present invention, the step S0 includes：
After one of them of first channel device or second channel machine is released, sent to the base station control unit
Signaling, the explorer record traffic channel variation situation.
Preferably, digital trunking system channel moving method of the present invention, the step S2 also includes：
If the explorer detects first channel device and the channel behaviour in service of second channel machine reaches letter
Road transition condition, Traffic Channel title and migratory direction are sent to Call Control Block；
The Call Control Block sends hand off signaling to first channel device and second channel machine, completes channel and cuts
Change.
Preferably, digital trunking system channel moving method of the present invention, sends in the Call Control Block and cuts
Change after signaling to first channel device and second channel machine, the hand off signaling is sent to communication terminal, the communication is whole
End is according to the hand off signaling service switchover channel.
In addition, the present invention also constructs a kind of digital trunking system channel moving apparatus, including memory, processor, wherein,
The memory, for storage program instruction；
The processor, the programmed instruction for being stored according to the memory performs following steps：
The explorer of base station control unit records the channel resource behaviour in service of the first channel device and second channel machine；
The available free Traffic Channel of the first channel device is detected, industry in running order in second channel machine is detected simultaneously by
The quantity of business channel is less than or equal to the data of the idle business channel；
By the business migration of the second channel machine to the idle business channel of first channel device, the secondary signal
Machine enters resting state.
Preferably, digital trunking system channel moving apparatus of the present invention, the processor, are additionally operable to according to described
The programmed instruction that memory is stored performs following steps：
First channel device and second channel machine include two Traffic Channels respectively, detect first channel device its
In a Traffic Channel it is in running order, be detected simultaneously by the one of Traffic Channel of second channel machine in running order.
Preferably, digital trunking system channel moving apparatus of the present invention, the processor, are additionally operable to according to described
The programmed instruction that memory is stored performs following steps：
Perform the business migration by the second channel machine to first channel device idle business channel it
Before, in addition to：
Judge whether the remaining air time of first channel device and second channel machine is more than threshold time；
If so, then by the idle business channel of the business migration of the second channel machine to first channel device, it is described
Secondary signal machine enters resting state.
Implement a kind of digital trunking system channel moving method and device of the present invention, have the advantages that：The party
Method includes：Detect the one of Traffic Channel of the first channel device in running order, be detected simultaneously by second channel machine wherein
One Traffic Channel is in running order；The talk business of first channel device was migrated to the free time of the second channel machine
Traffic Channel, afterwards first channel device enter resting state；Or migrate the talk business of the second channel machine to institute
The idle business channel of the first channel device is stated, the second channel machine enters resting state afterwards.By implementing the present invention, logical
During words, channel device power consumption is reduced using business channel emigration, so as to reduce group system power consumption.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is a kind of schematic flow sheet of digital trunking system channel moving method of the invention；
Fig. 2 is a kind of schematic flow sheet of the first embodiment of digital trunking system channel moving method of the invention；
Fig. 3 is a kind of schematic flow sheet of the second embodiment of digital trunking system channel moving method of the invention.
Embodiment
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, now compare accompanying drawing and describe in detail
The embodiment of the present invention.
Fig. 1 is a kind of schematic flow sheet of digital trunking system channel moving method of the invention.
Specifically, a kind of digital trunking system channel moving method of present invention construction, comprises the following steps：
S1：The available free Traffic Channel of the first channel device is detected, is detected simultaneously by running order in second channel machine
Traffic Channel quantity be less than or equal to idle business channel data.First channel device and second channel machine are all comprising multiple
Traffic Channel.It is appreciated that the first channel device and second channel machine said herein are not used to restriction order, only it is a kind of reference
Relation.
S2：By the idle business channel of the business migration of second channel machine to the first channel device, secondary signal machine, which enters, stops
Dormancy state.
Fig. 2 is a kind of schematic flow sheet of the first embodiment of digital trunking system channel moving method of the invention.
Specifically, in the present invention, the first channel device and second channel machine include two Traffic Channels respectively.The system
Channel is using time division multiplexing, and common number group system has multiple channel devices, and each channel device includes two time slots, each time slot
For a Traffic Channel, Traffic Channel is used to carry talk business.Business channel emigration method provided by the present invention is for public affairs
With all channel devices in digital cluster system, to illustrate operation principle, choose any two channel device and carry out method explanation, i.e.,
First channel device and second channel machine, the first channel device and second channel machine all include two Traffic Channels.According to channel whether
It is occupied, Traffic Channel is divided into Traffic Channel and idle business channel：The occupied Traffic Channel of Traffic Channel is denoted as
Traffic Channel, includes talk business；The unappropriated Traffic Channel of Traffic Channel is denoted as idle business channel, not comprising call
Business.This method comprises the following steps：
Step S11：Detect the one of Traffic Channel of the first channel device in running order, be detected simultaneously by the second letter
Machine one of Traffic Channel in road is in running order.
Specifically, the first channel device and second channel machine herein refers to any two channel device in system, and it is not specific to.When
System detectio is used to carry talk business to the one of Traffic Channel of one of channel device, i.e., at one of Traffic Channel
In working condition, the channel is recorded, and to system, other channel devices are detected for continuation.When detecting one other channel in system
The one of Traffic Channel of machine is used to carry talk business, i.e., one of Traffic Channel is in running order, then performs step
S2。
It is appreciated that occurring that an one of Traffic Channel of channel device is in running order two kinds of situations：
The first situation：Two original Traffic Channels of the channel device are all used to carry talk business, i.e., the channel device has
Two Traffic Channels.When the end of conversation of one of Traffic Channel, discharge after channel, the one of talk business of the channel device
It is in running order.
Second of situation：Two Traffic Channels of the channel device do not carry talk business, i.e., all in idle condition
The channel device has two idle business channels.When one of idle business channel starts to carry talk business, the then channel device
One of talk business is in running order.
Step S2：By the idle business channel of the business migration of second channel machine to the first channel device, secondary signal machine enters
Enter resting state.
Specifically, the talk business of the first channel device is migrated to the idle business channel of second channel machine, afterwards first
Channel device enters resting state；Or migrate the talk business of second channel machine to the idle business channel of the first channel device, it
Second channel machine enters resting state afterwards.Determine that there are two channel devices in system distinguishes one of Traffic Channel in work
After state, Traffic Channel is migrated according to preset channel migration algorithm, after migration Traffic Channel, without Traffic Channel
Channel device enter resting state.Preset channel migration algorithm includes but is not limited to：According to the priority of channel device, according to entrance
The time of single Traffic Channel, according to Traffic Channel remaining air time, the size of channel acc power, migration record etc..
It is appreciated that at least two channel devices in the system, system will detect the channel usage of all channel devices,
And record channel usage.When detecting, all one of Traffic Channel of any two channel device is occupied, then using the party
Method carries out the migration of Traffic Channel, two occupied Traffic Channels is concentrated on a channel device, so that another channel
Machine enters resting state.
First channel device includes into resting state：Base station control unit detect the Traffic Channel of the first channel device not by
After occupancy, sending signaling makes the first channel device enter resting state；Second channel machine includes into resting state：Base station control is single
Member detect second channel machine Traffic Channel it is unoccupied after, send signaling second channel machine is entered resting state.
Channel device enters after resting state, can reduce system power dissipation.
Fig. 2 is a kind of schematic flow sheet of the first embodiment of digital trunking system channel moving method of the invention.
Specifically, in the present invention, common number group system includes multiple channel devices, business letter provided by the present invention
Road moving method is directed to all channel devices in common number group system, and is not specific to, but to illustrate operation principle, chooses and appoint
Two channel devices of meaning carry out method statement, i.e. the first channel device and second channel machine.The channel of the system is using being time-multiplexed, often
Individual channel device includes two time slots, and each time slot is a Traffic Channel.First channel device and second channel machine all include two
Traffic Channel, by Traffic Channel Traffic Channel and idle business channel are divided into according to whether channel is occupied：Traffic Channel
Occupied Traffic Channel is denoted as Traffic Channel, includes talk business；The unappropriated Traffic Channel of Traffic Channel is denoted as sky
Not busy Traffic Channel, not comprising talk business.
Specifically, this method comprises the following steps：
Common number group system includes being used to record the base station control unit of the channel resource service condition of channel device, base
The explorer of stand control unit records the channel resource behaviour in service of the first channel device and second channel machine.When the first channel
After one in two Traffic Channels of machine or second channel machine is released, signaling, resource management are sent to base station control unit
Device record traffic channel variation situation.So, before step S1, in addition to：The explorer record of base station control unit
The channel resource behaviour in service of first channel device and second channel machine.
Step S11：Detect the one of Traffic Channel of the first channel device in running order, be detected simultaneously by the second letter
Machine one of Traffic Channel in road is in running order.
S12：Judge whether the remaining air time of the first channel device and second channel machine is more than threshold time.Preferably,
Passage time timer obtains the remaining air time of the first channel device and second channel machine.Preferably, the remaining air time by
Systemic presupposition.
If the remaining air time of the first channel device and second channel machine is both greater than threshold time, step S2 is performed.
Step S2：By the idle business channel of the business migration of second channel machine to the first channel device, secondary signal machine enters
Enter resting state.
Specifically, the talk business of the first channel device is migrated to the idle business channel of second channel machine, afterwards first
Channel device enters resting state；Or migrate the talk business of second channel machine to the idle business channel of the first channel device, it
Second channel machine enters resting state afterwards.
Traffic Channel realizes that the process of migration is：
If explorer detects the first channel device and the channel behaviour in service of second channel machine reaches channel migration bar
Part, Traffic Channel title and migratory direction are sent to Call Control Block；
Call Control Block sends hand off signaling to the first channel device and second channel machine, completes channel switching.
Call Control Block send hand off signaling to the first channel device and second channel machine after, by hand off signaling send to
Communication terminal, communication terminal is according to hand off signaling service switchover channel.Preferably, communication terminal is hand platform.
It is appreciated that there is multiple channel devices in the system, system will detect the channel usage of all channel devices, and remember
Record channel usage.When detecting, all one of Traffic Channel of any two channel device is occupied, then is entered using this method
The migration of row Traffic Channel, makes two occupied Traffic Channels concentrate on a channel device, so that another channel device enters
Enter resting state.
First channel device includes into resting state：Base station control unit detect the Traffic Channel of the first channel device not by
After occupancy, sending signaling makes the first channel device enter resting state；Second channel machine includes into resting state：Base station control is single
Member detect second channel machine Traffic Channel it is unoccupied after, send signaling second channel machine is entered resting state.
Channel device enters after resting state, can reduce system power dissipation.
Fig. 3 is a kind of schematic flow sheet of the second embodiment of digital trunking system channel moving method of the invention.
Specifically, in the present invention, common number group system includes multiple channel devices, business letter provided by the present invention
Road moving method is directed to all channel devices in common number group system, and is not specific to, but to illustrate operation principle, chooses and appoint
Two channel devices of meaning carry out method statement, i.e. the first channel device and second channel machine.The channel of the system is using being time-multiplexed, often
Individual channel device includes two time slots, and each time slot is a Traffic Channel.First channel device and second channel machine all include two
Traffic Channel, by Traffic Channel Traffic Channel and idle business channel are divided into according to whether channel is occupied：Traffic Channel
Occupied Traffic Channel is denoted as Traffic Channel, includes talk business；The unappropriated Traffic Channel of Traffic Channel is denoted as sky
Not busy Traffic Channel, not comprising talk business.
Specifically, this method comprises the following steps：
Common number group system includes being used to record the base station control unit of the channel resource service condition of channel device, base
The explorer of stand control unit records the channel resource behaviour in service of the first channel device and second channel machine.When the first channel
After one in two Traffic Channels of machine or second channel machine is released, signaling, resource management are sent to base station control unit
Device record traffic channel variation situation.
Step S11：Detect the one of Traffic Channel of the first channel device in running order, be detected simultaneously by the second letter
Machine one of Traffic Channel in road is in running order.
Judge whether the remaining air time of the first channel device and second channel machine is more than threshold time.Preferably, pass through
Time timer obtains the remaining air time of the first channel device and second channel machine.
If the remaining air time of the first channel device and second channel machine is more than threshold time, step S2 is performed.Step
S2 includes：
S21：Judge whether the Traffic Channel of the first channel device and second channel machine migrated business；
S22：If the business channel emigration mistake of the first channel device or second channel machine, migrated the channel device of business according to
Opposite with former migratory direction direction migration Traffic Channel, i.e., by the first channel device or second channel machine according to former migratory direction
Opposite direction migration Traffic Channel.
Specifically, Traffic Channel realizes that the process of migration is：
If explorer detects the first channel device and the channel behaviour in service of second channel machine reaches channel migration bar
Part, Traffic Channel title and migratory direction are sent to Call Control Block；
Call Control Block sends hand off signaling to the first channel device and second channel machine, completes channel switching.
Call Control Block send hand off signaling to the first channel device and second channel machine after, by hand off signaling send to
Communication terminal, communication terminal is according to hand off signaling service switchover channel.
It is appreciated that there is multiple channel devices in the system, system will detect the channel usage of all channel devices, and remember
Record channel usage.When detecting, all one of Traffic Channel of any two channel device is occupied, then is entered using this method
The migration of row Traffic Channel, makes two occupied Traffic Channels concentrate on a channel device, so that another channel device enters
Enter resting state.
First channel device includes into resting state：Base station control unit detect the Traffic Channel of the first channel device not by
After occupancy, sending signaling makes the first channel device enter resting state；Second channel machine includes into resting state：Base station control is single
Member detect second channel machine Traffic Channel it is unoccupied after, send signaling second channel machine is entered resting state.
Channel device enters after resting state, can reduce system power dissipation.
For example, in terms of energy-conservation, during channel device use, channel device input power is about 2W during channel device dormancy,
Channel device input power is about 96W when the common setting value of power is 40W during normal work.After technical scheme,
Two Traffic Channels of two channel devices are merged on a channel device, so that a channel device enters resting state, pressed
Calculated according to switch power efficiency 0.8,1 hour of cumulative operation can save 0.12 degree of electricity.
In addition, the present invention also constructs a kind of digital trunking system channel moving apparatus, including memory, processor, wherein,
Memory, for storage program instruction；
Processor, the programmed instruction for being stored according to memory performs following steps：
The explorer of base station control unit records the channel resource behaviour in service of the first channel device and second channel machine；
The available free Traffic Channel of the first channel device is detected, industry in running order in second channel machine is detected simultaneously by
The quantity of business channel is less than or equal to the data of idle business channel；
By the idle business channel of the business migration of second channel machine to the first channel device, secondary signal machine enters dormancy shape
State.
Preferably, digital trunking system channel moving apparatus of the invention, processor, are additionally operable to be stored according to memory
Programmed instruction perform following steps：
First channel device and second channel machine include two Traffic Channels respectively, detect the one of industry of the first channel device
Business channel is in running order, is detected simultaneously by the one of Traffic Channel of second channel machine in running order.
Preferably, digital trunking system channel moving apparatus of the invention, processor, are additionally operable to be stored according to memory
Programmed instruction perform following steps：
Before performing the idle business channel of the business migration of second channel machine to the first channel device, in addition to：
Judge whether the remaining air time of the first channel device and second channel machine is more than threshold time；
If so, then by the idle business channel of the business migration of second channel machine to the first channel device, secondary signal machine enters
Enter resting state.
By implementing the present invention, in communication process, channel device power consumption is reduced using business channel emigration, so as to reduce collection
Group's system power dissipation.
Above example only technical concepts and features to illustrate the invention, its object is to allow person skilled in the art
Scholar can understand present disclosure and implement accordingly, can not limit the scope of the invention.It is all to be wanted with right of the present invention
The equivalent changes and modifications that scope is done are sought, the covering scope of the claims in the present invention all should be belonged to.
Claims (12)
1. a kind of digital trunking system channel moving method, it is characterised in that comprise the following steps：
S1：The available free Traffic Channel of the first channel device is detected, industry in running order in second channel machine is detected simultaneously by
The quantity of business channel is less than or equal to the data of the idle business channel；
S2：By the business migration of the second channel machine to the idle business channel of first channel device, the secondary signal
Machine enters resting state.
2. digital trunking system channel moving method according to claim 1, it is characterised in that first channel device and
Second channel machine includes two Traffic Channels respectively；
The step S1 includes：
S11：Detect the one of Traffic Channel of the first channel device in running order, be detected simultaneously by second channel machine
One of Traffic Channel is in running order.
3. digital trunking system channel moving method according to claim 2, it is characterised in that performing the step S2
Before, in addition to：
S12：Judge whether the remaining air time of first channel device and second channel machine is more than threshold time；
If so, then performing the step S2.
4. digital trunking system channel moving method according to claim 3, it is characterised in that passage time timer is obtained
Take the remaining air time of first channel device and second channel machine.
5. digital trunking system channel moving method according to claim 2, it is characterised in that the business migration it
Before, in addition to：
S21：Judge whether the Traffic Channel of first channel device and second channel machine migrated business；
S22：If so, the channel device for the business that migrated then is migrated into business according to the direction opposite with former migratory direction.
6. digital trunking system channel moving method according to claim 2, it is characterised in that the step S1 it
Before, in addition to：
S0：The explorer of base station control unit records first channel device and the channel resource of second channel machine uses shape
Condition.
7. digital trunking system channel moving method according to claim 6, it is characterised in that the step S0 includes：
After one of them of first channel device or second channel machine is released, sends and believe to the base station control unit
Order, the explorer record traffic channel variation situation.
8. digital trunking system channel moving method according to claim 7, it is characterised in that the step S2 is also wrapped
Include：
If the explorer detects first channel device and the channel behaviour in service of second channel machine reaches that channel is moved
Shifting condition, Traffic Channel title and migratory direction are sent to Call Control Block；
The Call Control Block sends hand off signaling to first channel device and second channel machine, completes channel switching.
9. digital trunking system channel moving method according to claim 8, it is characterised in that in the Call- Control1 mould
Block is sent after hand off signaling to first channel device and second channel machine, and the hand off signaling is sent to communication terminal, institute
Communication terminal is stated according to the hand off signaling service switchover channel.
10. a kind of digital trunking system channel moving apparatus, it is characterised in that including memory, processor, wherein,
The memory, for storage program instruction；
The processor, the programmed instruction for being stored according to the memory performs following steps：
The explorer of base station control unit records the channel resource behaviour in service of the first channel device and second channel machine；
The available free Traffic Channel of the first channel device is detected, business letter in running order in second channel machine is detected simultaneously by
The quantity in road is less than or equal to the data of the idle business channel；
By the idle business channel of the business migration of the second channel machine to first channel device, the secondary signal machine enters
Enter resting state.
11. digital trunking system channel moving apparatus according to claim 10, it is characterised in that the processor, also
Programmed instruction for being stored according to the memory performs following steps：
First channel device and second channel machine include two Traffic Channels respectively, detect first channel device wherein one
Individual Traffic Channel is in running order, is detected simultaneously by the one of Traffic Channel of second channel machine in running order.
12. digital trunking system channel moving apparatus according to claim 11, it is characterised in that the processor, also
Programmed instruction for being stored according to the memory performs following steps：
Before the execution business migration by the second channel machine to the idle business channel of first channel device, also
Including：
Judge whether the remaining air time of first channel device and second channel machine is more than threshold time；
If so, then by the idle business channel of the business migration of the second channel machine to first channel device, described second
Semaphore enters resting state.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112004199A (en) * | 2019-05-27 | 2020-11-27 | 海能达通信股份有限公司 | Call service processing method and device |
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| CN103067955A (en) * | 2013-01-22 | 2013-04-24 | 哈尔滨海能达科技有限公司 | Method and device for base station multi-channel receiver system failure detection |
| CN103796322A (en) * | 2014-02-28 | 2014-05-14 | 哈尔滨海能达科技有限公司 | Trunked communication system adopting time division multiple access, device and channel allocation method |
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| CN112004199A (en) * | 2019-05-27 | 2020-11-27 | 海能达通信股份有限公司 | Call service processing method and device |
| CN112004199B (en) * | 2019-05-27 | 2022-04-15 | 海能达通信股份有限公司 | Call service processing method and device |
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