CN104954999B - Method and terminal for communication based on distributed cluster communication system - Google Patents
Method and terminal for communication based on distributed cluster communication system Download PDFInfo
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- CN104954999B CN104954999B CN201410117600.6A CN201410117600A CN104954999B CN 104954999 B CN104954999 B CN 104954999B CN 201410117600 A CN201410117600 A CN 201410117600A CN 104954999 B CN104954999 B CN 104954999B
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Abstract
The invention discloses a communication method and a terminal based on a distributed cluster communication system, wherein the distributed cluster communication system comprises at least one site, the site comprises at least one relay station and a plurality of user terminals, and each relay station comprises a plurality of logic channels. The distributed cluster communication system pre-allocates a main relay station for the user terminals in the site according to a preset allocation strategy, and the user terminals preferentially monitor the pre-allocated main relay station of the user terminals; when any user terminal triggers communication, judging whether the main relay station of the user terminal has an idle logical channel, if so, using the idle logical channel for communication. The relay station of the invention is an inherent component of a distributed trunking communication system, comprises a plurality of logical channels, can simultaneously support multi-path calling, has low possibility of busy state of all the channels, can support more calling users and improves the utilization rate of the channels.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and a terminal for performing communication based on a distributed trunking communication system.
Background
In conventional wireless communication systems, a user terminal can only communicate on its assigned channel. As shown in the conventional intercom wireless communication system of fig. 1, in which the users of the communication group 1 are assigned to the channel 1 in advance for communication, that is, the users of the communication group 1 cannot communicate using the channel 2 or the channel 3, the channel is fixedly assigned to a specific user in the conventional wireless communication system, and the system can only support a limited number of calling users.
The trunking communication system is a radio mobile communication system which realizes multi-user sharing of multiple channels according to a dynamic channel assignment mode, and can solve the problems of the conventional wireless communication system. The trunking communication system generally comprises terminal equipment, a base station, a control management center and the like, and has the functions of scheduling, group calling, priority calling, virtual private network, roaming and the like. Referring to fig. 2, fig. 2 is a schematic diagram of a trunking communication system in the prior art, where the system includes a plurality of intercom users, a control management center, a plurality of traffic channels, and a control channel. In the trunking communication system, an interphone user needs to be started and successfully registered in the trunking communication system to communicate, when the interphone needs to communicate, a communication request is sent to a control management center in a control channel, then the interphone waits for the control management center to distribute a service channel for the interphone user, and the interphone can be switched to the service channel to communicate after the control management center distributes the service channel for the interphone user. It can be seen that in the trunking communication system, it takes a long time to establish a call before the intercom communicates, and meanwhile, the whole communication process must be participated by the control management center, and in the actual communication system, the cost of establishing the control management center is high, which also results in a problem of high cost of establishing the trunking communication system.
In order to overcome the above defects, a distributed trunking communication system with a relay station gradually replaces a trunking communication system with a control management center, and the relay station of the distributed trunking communication system replaces the status of a base station and the control management center in the trunking communication system. How to utilize the resources of the current distributed trunking communication system to improve the channel utilization without increasing the cost and support more calling users is the most concerned problem.
Disclosure of Invention
The invention provides a communication method and a communication terminal based on a distributed cluster communication system, which improve the utilization rate of a channel and support more calling users on the basis of the existing distributed cluster communication system.
In order to solve the above technical problems, the present invention provides a method and a terminal for performing communication based on a distributed trunking communication system, and the present invention provides the following technical solutions:
a method for performing communication based on a distributed trunking communication system, the distributed trunking communication system comprising at least one site, the site comprising at least one relay station and a plurality of user terminals, each relay station comprising a plurality of logical channels, the distributed trunking communication system allocating a main relay station to user terminals within the site according to a preset allocation policy, the method comprising:
a user terminal monitors a main transfer station pre-distributed for the user terminal;
when any user terminal triggers communication, judging whether a main relay station of the user terminal triggering communication has an idle logical channel, and when the main relay station of the user terminal has the idle logical channel, using the idle logical channel for communication.
Preferably, the pre-allocating, by the distributed trunking communication system, a main relay station to the user terminal in the site includes:
the distributed trunking communication system allocates a main relay station for different communication groups in advance according to a preset allocation strategy, wherein each communication group comprises at least two user terminals;
the user terminals in each of said communication groups are allocated on the same main relay station.
Preferably, the user terminal takes any logical channel of the main relay station of the user terminal as a main channel,
when any user terminal triggers communication, judging whether a main relay station of the user terminal triggering communication has an idle logical channel, and when the main relay station of the user terminal has the idle logical channel, using the idle logical channel for communication, wherein the method comprises the following steps:
when any user terminal triggers communication, judging whether a main channel of the user terminal triggering communication is idle, and when the main channel of the user terminal is idle, using the main channel to carry out communication.
Preferably, the method further comprises:
and when the main channel is not in an idle state, judging whether other idle logical channels exist in the main relay station of the user terminal, and when other idle logical channels exist in the main relay station of the user terminal, using the other idle logical channels of the main relay station to carry out communication.
Preferably, the method further comprises:
determining any transfer table comprising idle logic channels as a free transfer table of the distributed trunking communication system;
and when the main relay station of the user terminal does not have an idle logical channel, using any idle logical channel of the free relay station to carry out communication.
Preferably, after any user terminal triggers communication and before determining whether a main relay station of the user terminal has a free logical channel, the method further includes:
the user terminal detects a radio frequency signal sent by a main relay station of the user terminal;
and when the radio frequency signal is smaller than a preset threshold, waking up the main transfer table.
Preferably, the method further comprises:
and when the awakening of the main relay station fails, using any idle logic channel of the free relay station for communication.
Preferably, the method further comprises:
when any user terminal detects that other relay stations forward the call of the user terminal on a main relay station of the user terminal, the user terminal accesses the call by using the relay stations.
Preferably, the method further comprises:
and when the calling is finished, the user terminal detects whether a main relay station of the user terminal has an idle logical channel, and when the main relay station has the idle logical channel, the user terminal monitors the main relay station.
The invention also provides a terminal for communication based on the distributed cluster communication system, which comprises:
the first monitoring module is used for monitoring a main transfer station distributed to the terminal by the distributed trunking communication system according to a preset distribution strategy;
the first judging module is used for judging whether the main relay station has an idle logical channel or not when the terminal triggers communication;
and the first communication module is used for carrying out communication by using the idle logical channel when the result of the first judgment module is yes.
Preferably, a communication group consisting of at least two user terminals is allocated to the main relay station according to a preset allocation policy;
the terminals in each communication group are allocated on the same master relay station.
Preferably, the terminal has a primary channel, the primary channel is any logical channel of a main relay station of the terminal,
the first judging module is specifically a module for judging whether a main channel of the terminal is idle or not when the terminal triggers communication;
the first communication module is specifically a module for performing communication using the main channel when the result of the first judgment module is yes.
Preferably, the terminal further includes:
a second judging module, configured to judge whether other idle logical channels exist in a main relay station of the user terminal if the result of the first judging module is negative;
and the second communication module is used for carrying out communication by using other idle logical channels of the main relay station when the result of the second judgment module is negative.
Preferably, the distributed trunking communication system further includes a free relay station, the free relay station includes at least one idle logical channel, and the terminal further includes:
and a third communication module, configured to use any idle logical channel of the free relay station to perform communication when no idle logical channel exists in the main relay station of the user terminal.
Preferably, the terminal further includes:
the first detection module is used for detecting a radio frequency signal sent by a main relay station of the terminal;
and the awakening module is used for awakening the main transfer platform when the radio frequency signal is smaller than a preset threshold.
Preferably, the terminal further includes:
and the fourth communication module is used for using any idle logic channel of the free relay station to carry out communication when the awakening module fails to awaken the main relay station.
Preferably, the terminal further includes:
and the access module is used for accessing the call by using the relay station when the main relay station of the terminal detects that other relay stations forward the call of the terminal.
Preferably, the terminal further includes:
a second detection module, configured to detect whether a main relay station of the terminal has an idle logical channel when the call of the access module is ended;
and the second monitoring module is used for monitoring the main transfer station preferentially when the result of the second detection module is yes.
The invention also provides a distributed cluster communication system, which comprises at least one station, wherein the station comprises at least one relay station and a plurality of user terminals, and each relay station comprises a plurality of logic channels.
Preferably, the system further comprises a main relay station allocated to the user terminal according to a preset allocation policy.
The invention provides a communication method based on a distributed cluster communication system, wherein the distributed cluster communication system comprises at least one station, the station comprises at least one relay station and a plurality of user terminals, and the relay station comprises a plurality of logic channels. In the invention, the distributed cluster communication system pre-allocates a main relay station for the user terminals in the site according to a preset allocation strategy, and the user terminals preferentially monitor the pre-allocated main relay station for the user terminals; when any user terminal triggers communication, judging whether the main relay station of the user terminal has an idle logical channel, if so, using the idle logical channel for communication. Compared with the prior art, the relay station is an inherent component of the distributed trunking communication system, comprises a plurality of logic channels, can simultaneously support multi-path calling, has low possibility of busy state of all the channels, can support more calling users and improves the utilization rate of the channels.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a conventional intercom wireless communication system in the prior art;
FIG. 2 is a diagram of a prior art trunking communication system with a control management center;
FIG. 3 is a flow chart of a method for communication based on a distributed cluster communication system according to the present invention;
FIG. 4 is a schematic diagram of a single-site distributed cluster communication system according to the present invention;
FIG. 5 is a schematic diagram of a multi-site distributed cluster communication system provided by the present invention;
fig. 6 is a diagram of a terminal structure for performing communication based on a distributed cluster communication system according to the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 3, fig. 3 is a flowchart of a method for performing communication based on a distributed trunking communication system provided in this embodiment, where the distributed trunking communication system includes at least one station, where the station includes at least one relay station and a plurality of user terminals, and each relay station includes a plurality of logical channels, and the method may include:
s301: and the distributed cluster communication system distributes a main transfer station for the user terminals in the station according to a preset distribution strategy.
Each scheme of the embodiment of the invention is realized based on a distributed cluster communication system, and the distributed cluster communication system can be a single-station distributed cluster communication system or an IP interconnection multi-station distributed cluster communication system, namely, the distributed cluster communication system can comprise a single station or a plurality of stations. The user terminal described in this embodiment may be an intercom.
In practical application, both the relay station and the user terminal of the distributed trunking communication system may store distribution policies, where the distribution policies may be corresponding relationships between the relay station and the user terminal, and after the user terminal accesses the distributed trunking communication system, the user terminal and the relay station may respectively establish corresponding relationships according to the respective stored distribution policies, that is, determine a main relay station for the user terminal. In addition, the allocation of the main relay station of the user terminal can be realized by storing the allocation policy only in the relay station of the distributed trunking communication system. That is, the user terminal does not need a storage allocation policy. Specifically, when the user terminal accesses the distributed trunking communication system, the user terminal may receive a message broadcasted by the relay station, and when the user terminal receives an allocation policy related thereto, the allocation policy may be stored in the user terminal, and then the relay station and the user terminal may complete allocation of the main relay station according to the respective stored allocation policies.
Each station in the distributed cluster communication system comprises at least one channel frequency point, each channel frequency point can be used as a relay station, and the distributed cluster communication system pre-allocates a main relay station for user terminals in the station according to a pre-set allocation strategy. The preset allocation strategy is a balanced allocation strategy, that is, the number of the user terminals allocated on each relay station is as close as possible. Meanwhile, one channel frequency point can be divided into a plurality of logical channels (also called time slots), and specifically, one channel frequency point can be divided into a plurality of logical channels determined by a protocol adopted by actual communication, for example, a DMR (time division multiple access double time slot channel) protocol is adopted, and each channel can be divided into two logical channels. The logical channel divided by the channel frequency points is specifically used for communication of the user terminal, when the logical channel is used for communication, the logical channel is in a busy state, and on the contrary, when the logical channel is not used for communication, the logical channel is in an idle state. The use of the logic channel enables one frequency point to execute multi-path calling at the same time, and the utilization rate of the channel is improved.
S302: the user terminal monitors a main transfer station pre-allocated for the user terminal.
In this embodiment, a user terminal locked to any one of the sites in the distributed trunking communication system is pre-assigned with a relay station as a main relay station. Wherein the main relay station comprises a plurality of logical channels. And the user terminal preferentially monitors the main transfer platform of the user terminal.
When the distributed trunking communication system comprises communication groups, main relay stations can be distributed to different communication groups in a balanced mode according to a preset balanced distribution strategy, and meanwhile user terminals included in each communication group are distributed on the same main relay station in advance. Wherein each communication group comprises at least two user terminals. Specifically, when the number of communication groups is not greater than the number of relay stations, the preset equilibrium allocation strategy may be to allocate different main relay stations to each communication group; in addition, when the number of communication groups is greater than the number of relay stations, the preset equal distribution strategy may be such that the number of communication groups distributed on each main relay station is not greatly different.
S303: when any user terminal triggers communication, judging whether a main relay station of the user terminal triggering communication has an idle logical channel, and when the main relay station of the user terminal has the idle logical channel, using the idle logical channel for communication.
In this embodiment, when any user terminal triggers communication, the user terminal first determines whether an idle logical channel exists in a main relay station of the user terminal, and when the idle logical channel exists in the main relay station, the idle logical channel of the main relay station is used for communication.
In practical application, whether the main relay station of the user terminal has an idle logical channel can be judged according to CACH information of a radio frequency signal sent by the relay station. Referring to table 1, table 1 is a structure diagram of a 24-bit CACH information structure in a radio frequency signal, where AT (Access Type) is used to indicate whether a state of a logical channel is busy or idle; TC (time division multiple access Channel, TDMA Channel) is used to mark the timeslot number of the time division multiple access Channel, i.e. a logical Channel number, which is used to indicate which logical Channel of a plurality of logical channels is specific, and lcs (Link Control Start/Stop, Start or end indication of Link Control) is used to indicate the Start or end of communication.
| AT(1bit) | TC(1bit) | LCSS(2bit) | Error correction bit (3bit) | CACH signaling (17bit) |
TABLE 1
Taking each channel including two logical channels as an example, according to table 1, the specific determination process for determining whether there is an idle logical channel in the main relay station of the user terminal may be: each channel comprises two logical channels, so that the radio frequency signal transmitted by the main relay station of said user terminal comprises two CACH information, corresponding to the two logical channels comprised by the main relay station respectively, under the condition that the intensity of the radio frequency signal is greater than a preset threshold, the user terminal can judge whether a free logical channel exists in the main relay station according to the numerical value of the AT bit in the CACH information, according to the regulation of the ETSI-DMR standard, if the AT bit is set to be 1, the indicated logical channel is busy, i.e. the relay station is relaying voice communications or data transmissions originating from other terminals than said user terminal, if the AT bit is set to 0, it indicates that the status of the logical channel it indicates is idle, that is, the relay station is not relaying any voice communication or data transmission, but is issuing an idle frame indicating that the user terminal can initiate communication.
If the AT bit in the two CACH information is 1, the main relay station is indicated to have no available idle logical channel, and if one AT bit in the two CACH information is not 1, the main relay station is indicated to have available idle logical channel; after the user terminal determines that there is an idle logical channel in the main relay station according to the AT bit in the CACH information, further, the user terminal can determine which logical channel is idle according to the TC bit in the corresponding CACH information, and then the user terminal uses the idle logical channel for communication.
In this embodiment, the logical channels included in the main relay station of the user terminal may also be divided into a main channel and an auxiliary channel, where one main relay station corresponds to one main channel and the other logical channels are called auxiliary channels. When a user terminal triggers communication, firstly, judging whether a main channel in a main relay station of the user terminal is in an idle state or not, and if the main channel is in the idle state, using the main channel to carry out communication by the user terminal; otherwise, judging whether the main relay station of the user terminal has an idle auxiliary channel, and the user terminal uses the idle auxiliary channel for communication.
In practice, members of the same communication group are usually assigned to the same relay station, and the plurality of logical channels included in the relay station are respectively used as main channels.
In this embodiment, any one of the relay stations including the idle logical channel is determined as the free relay station of the distributed trunking communication system. Each distributed trunked communication system comprises only one free-transfer leg comprising at least one free logical channel.
When the main relay station of the user terminal does not have an idle logical channel, the user terminal uses the idle logical channel of the free relay station to communicate, and the use of the free relay station can further support more calling users.
The invention can support not only a single-site system but also a multi-site system. For a multi-site system, the invention only needs to use IP to connect the transfer tables in different sites.
In this embodiment, the user terminal detects whether a radio frequency signal sent by a main relay station of the user terminal is smaller than a preset threshold, and if the radio frequency signal sent by the main relay station is smaller than the preset threshold, it indicates that the main relay station enters a sleep state, and the user terminal sends a wake-up signal to wake up the main relay station. The method comprises the steps that when the user terminal sends a wakeup signal, a wakeup timer is started, the wakeup timer is marked as a first timer, if a feedback signal sent by a main relay station is received before the first timer is overtime, the main relay station is indicated to be successfully awakened, wherein the feedback signal indicates an available idle logical channel of the user terminal, the user terminal only needs to use the idle logical channel for communication, and the feedback signal is the idle frame.
And if the feedback signal sent by the main relay station is not received before the first timer is overtime, the user terminal is failed to wake up. At this time, the user terminal may use any free logical channel of the free relay station for communication.
And if the free relay station is also in a sleep state, the user terminal can send a wake-up signal to wake up the free relay station, and after the free relay station is successfully woken up, the user terminal uses any idle logic channel in the free relay station to carry out communication.
And when all the logic channels in the distributed cluster communication system are in a busy state, the user terminal preferentially monitors a main relay station of the user terminal.
In practical applications, when a user terminal is monitoring its own main relay station, it may be detected that other relay stations forward a call of the user terminal, and at this time, the user terminal may use the relay station that is forwarding the call to access the call.
When the call accessed by the user terminal is finished, the user terminal can detect whether an idle logical channel exists in the main relay station of the user terminal, and if so, the user terminal preferentially monitors the main relay station.
In the following, a method for performing communication based on single-site cluster communication of DMR time division multiple access is taken as an example, and referring to fig. 4, fig. 4 is a single-site structure diagram, and a method for performing communication based on the system in fig. 4 is described in detail below.
When the interphone users move in the coverage range of the single station, each interphone user preferably monitors the main transfer station of the interphone user. In station 1 in fig. 4, the main relay station allocated to the interphones G1, G2, and G3 is an F1 frequency point (i.e., a relay station), the main relay station allocated to the interphones G4, G5, and G6 is an F2 frequency point, and the main relay station allocated to the interphones G7, G8, and G9 is an F3 frequency point.
When a user of G1 initiates a call in slot 1 (i.e. a logical channel) of the F1 frequency point, and at the same time, a user of G2 initiates a call in slot 2 of the F1 frequency point, the user of G3 will detect that both slots of the main relay station are occupied, and at this time, the user of G3 switches to the free relay station F2 to monitor the station broadcast message. While users of G4, G5, and G6 continue to listen to its main relay F2, users of G7, G8, and G9 remain on its main relay F3 to listen.
As shown in the single-station distributed mode of fig. 4, in a single station including 3 channels, 6 calls can be simultaneously supported, and compared with the existing system in which one frequency point can only allocate two calls to an intercom, the system scheme can simultaneously support 6 calls, and the probability that all channels are busy is relatively low, so that the probability that a call is accessed is greatly improved, and the number of users supporting the call is increased.
Taking an IP interconnection multi-site distribution of DMR time division multiple access as an example, a method for performing communication based on the distribution is specifically described below, referring to fig. 5, where fig. 5 is a multi-site distribution structure diagram, and a method for performing communication based on the system in fig. 5 is described below.
When the interphone is applied to the DMR time division multiple access virtual cluster system, two logic channels are added when one channel frequency point is added. For example, station 1 in fig. 5 includes two frequency points F1 and F2, and their logical channels are time slot 1, time slot 2, time slot 3, and time slot 4, respectively. The station 2 comprises two frequency points of F3 and F4, and the logical channels of the frequency points correspond to the logical channel time slots of the station 1. If a group of users is often active between more than two sites, it will be assigned different main relays at different sites. For example, the main transfer station for group 1 user at station 1 is F1, the main transfer station at station 2 is F3, the group 1 user is active at station 1, preferably listens to its main transfer station F1, and when it moves to station 2, the main transfer station for preferred listening switches to F3.
As shown in fig. 5, in station 1 and station 2, the logical channel of each station can support a separate call. The intercom user a initiates a group call to group 1 in Slot 1 of site 1, and both the group member at F1 and the group member moving to F3 will receive the call. When the interphone B initiates a calling call, if the time slot 1 is occupied, the interphone B uses the idle time slot 2 to make a calling call. Likewise, time slot 3 and time slot 4 may also be used to support different calls.
Meanwhile, the user who just starts up can search for interesting activities by receiving site broadcast messages, such as: the members of the group 1 are started up at the frequency point F4, the call of the group 1 in the time slot 1 is forwarded by detecting the broadcast message of the receiving station, and the group 1 members are switched to the frequency point F3 to access the call of the group 1 in the time slot 1.
Referring to fig. 6, fig. 6 is a structure diagram of a terminal for performing communication based on a distributed type according to this embodiment, where the distributed type includes at least one station, the station includes at least one relay station and a plurality of terminals, the relay station includes a plurality of logical channels, the terminal has a distributed main relay station, and the terminal includes a first monitoring module 601, a first determining module 602, and a first communication module 603;
the first monitoring module 601 is configured to monitor a main relay station allocated to the terminal by the distributed trunking communication system according to a preset allocation policy;
the first determining module 602 is configured to determine whether the main relay station has an idle logical channel when the terminal triggers communication;
the first communication module 603 is configured to use the idle logical channel for communication when the result of the first determining module is yes.
In addition, a communication group consisting of at least two user terminals distributes the main relay station in a balanced manner according to a preset balanced distribution strategy; meanwhile, terminals in each communication group are allocated in advance on the same main relay station.
In another implementation, the terminal has a main channel, the main channel is any logical channel of a main relay station of the terminal,
the first judging module is specifically a module for judging whether a main channel of the terminal is idle or not when the terminal triggers communication;
the first communication module is specifically a module for performing communication using the main channel when the result of the first judgment module is yes.
Meanwhile, the terminal may further include:
a second judging module, configured to judge whether other idle logical channels exist in a main relay station of the user terminal if the result of the first judging module is negative;
and the second communication module is used for carrying out communication by using other idle logical channels of the main relay station when the result of the second judgment module is negative.
In another implementation, the distributed system further includes a free relay station, where the free relay station includes at least one idle logical channel, and the terminal further includes:
and a third communication module, configured to use any idle logical channel of the free relay station to perform communication when no idle logical channel exists in the main relay station of the user terminal.
Meanwhile, the terminal may further include:
the first detection module is used for detecting a radio frequency signal sent by a main relay station of the terminal;
and the awakening module is used for awakening the main transfer platform when the radio frequency signal is smaller than a preset threshold.
Meanwhile, the terminal may further include:
and the fourth communication module is used for using any idle logic channel of the free relay station to carry out communication when the awakening module fails to awaken the main relay station.
In another implementation manner, the terminal further includes:
and the access module is used for accessing the call by using the relay station when the main relay station of the terminal detects that other relay stations forward the call of the terminal.
Meanwhile, the terminal may further include:
a second detection module, configured to detect whether a main relay station of the terminal has an idle logical channel when the call of the access module is ended;
and the second monitoring module is used for monitoring the main transfer station preferentially when the result of the second detection module is yes.
The invention also provides a distributed system, wherein the distributed system comprises at least one station, the station comprises at least one relay station and a plurality of user terminals, and each relay station comprises a plurality of logical channels.
In practical application, the system may further include a main relay station allocated to the user terminal according to a preset allocation policy.
The invention provides a method and a terminal for communication based on a distributed mode, wherein the distributed mode comprises at least one station, the station comprises at least one relay station and a plurality of user terminals, and the relay station comprises a plurality of logic channels. In the invention, the distributed system pre-allocates a main relay station for the user terminal in the site according to a preset allocation strategy, and the user terminal monitors the pre-allocated main relay station of the user terminal; when any user terminal triggers communication, judging whether a main relay station of the user terminal triggering communication has an idle logical channel, and when the main relay station of the user terminal has the idle logical channel, using the idle logical channel for communication. Compared with the prior art, the relay station is a distributed inherent component, comprises a plurality of logic channels, can simultaneously support multi-path calling, has lower possibility that all the channels are in a busy state, can support more calling users and improves the utilization rate of the channels.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
For the system embodiment, since it basically corresponds to the method embodiment, reference may be made to the partial description of the method embodiment for relevant points. The above-described system embodiments are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The foregoing is directed to embodiments of the present invention, and it is understood that various modifications and improvements can be made by those skilled in the art without departing from the spirit of the invention.
Claims (17)
1. A method for performing communication based on a distributed trunking communication system, wherein the distributed trunking communication system comprises at least one site, the site comprises at least one relay station and a plurality of user terminals, each relay station comprises a plurality of logical channels, the distributed trunking communication system allocates a main relay station to the user terminals in the site according to a preset allocation policy, and the method comprises:
a user terminal monitors a main transfer station pre-distributed for the user terminal;
when any user terminal triggers communication, judging whether a main relay station of the user terminal triggering communication has an idle logical channel or not, and when the main relay station of the user terminal has the idle logical channel, using the idle logical channel for communication; the logical channel is a time slot;
and when the main relay station of the user terminal does not have an idle logical channel, using any idle logical channel of the free relay station to carry out communication, wherein the free relay station is a relay station comprising idle logical channels in the distributed trunking communication system.
2. The method of claim 1, wherein the distributed group communication system pre-allocates a main relay station for the user terminal within the site, and wherein the method comprises:
the distributed trunking communication system allocates a main relay station for different communication groups in advance according to a preset allocation strategy, wherein each communication group comprises at least two user terminals;
the user terminals in each of said communication groups are allocated on the same main relay station.
3. The method according to claim 1 or 2, characterized in that a user terminal takes any logical channel of the user terminal's main relay station as a main channel,
when any user terminal triggers communication, judging whether a main relay station of the user terminal triggering communication has an idle logical channel, and when the main relay station of the user terminal has the idle logical channel, using the idle logical channel for communication, wherein the method comprises the following steps:
when any user terminal triggers communication, judging whether a main channel of the user terminal triggering communication is idle, and when the main channel of the user terminal is idle, using the main channel to carry out communication.
4. The method of claim 3, further comprising:
and when the main channel is not in an idle state, judging whether other idle logical channels exist in the main relay station of the user terminal, and when other idle logical channels exist in the main relay station of the user terminal, using the other idle logical channels of the main relay station to carry out communication.
5. The method of claim 1, wherein after any ue triggers communication and before determining whether a free logical channel exists in a primary relay station of the ue, the method further comprises:
the user terminal detects a radio frequency signal sent by a main relay station of the user terminal;
and when the radio frequency signal is smaller than a preset threshold, waking up the main transfer table.
6. The method of claim 5, further comprising:
and when the awakening of the main relay station fails, using any idle logic channel of the free relay station for communication.
7. The method of claim 1, further comprising:
when any user terminal detects that other relay stations forward the call of the user terminal on a main relay station of the user terminal, the user terminal accesses the call by using the relay stations.
8. The method of claim 7, further comprising:
and when the calling is finished, the user terminal detects whether a main relay station of the user terminal has an idle logical channel, and when the main relay station has the idle logical channel, the user terminal monitors the main relay station.
9. A terminal for communicating based on a distributed trunked communication system, the terminal comprising:
the first monitoring module is used for monitoring a main transfer station distributed to the terminal by the distributed trunking communication system according to a preset distribution strategy;
the first judging module is used for judging whether the main relay station has an idle logical channel or not when the terminal triggers communication;
the first communication module is used for carrying out communication by using the idle logical channel when the result of the first judgment module is yes; the logical channel is a time slot;
the third communication module is used for carrying out communication by using any idle logic channel of the free relay station when the result of the first judgment module is negative; the free relay station is a relay station comprising an idle logic channel in the distributed trunking communication system.
10. The terminal of claim 9, wherein the terminal has a primary channel, wherein the primary channel is any logical channel of a primary relay station of the terminal,
the first judging module is specifically a module for judging whether a main channel of the terminal is idle or not when the terminal triggers communication;
the first communication module is specifically a module for performing communication using the main channel when the result of the first judgment module is yes.
11. The terminal of claim 10, further comprising:
the second judging module is used for judging whether other idle logical channels exist in the main relay station of the terminal when the result of the first judging module is negative;
and the second communication module is used for carrying out communication by using other idle logical channels of the main relay station when the result of the second judgment module is negative.
12. The terminal of claim 9, wherein the terminal further comprises:
the first detection module is used for detecting a radio frequency signal sent by a main relay station of the terminal;
and the awakening module is used for awakening the main transfer platform when the radio frequency signal is smaller than a preset threshold.
13. The terminal of claim 12, wherein the terminal further comprises:
and the fourth communication module is used for using any idle logic channel of the free relay station to carry out communication when the awakening module fails to awaken the main relay station.
14. The terminal of claim 9, wherein the terminal further comprises:
and the access module is used for accessing the call by using the relay station when the main relay station of the terminal detects that other relay stations forward the call of the terminal.
15. The terminal of claim 14, wherein the terminal further comprises:
a second detection module, configured to detect whether a main relay station of the terminal has an idle logical channel when the call of the access module is ended;
and the second monitoring module is used for monitoring the main transfer station preferentially when the result of the second detection module is yes.
16. A distributed trunked communication system comprising a free relay station and at least one station, said station comprising at least one relay station and a plurality of user terminals, each relay station comprising a plurality of logical channels; the logical channel is a time slot;
the distributed cluster communication system for performing the method for communicating based on the distributed cluster communication system of any of claims 1-8.
17. The system of claim 16, further comprising a main relay station assigned to the user terminal according to a preset assignment policy.
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| CN201410117600.6A CN104954999B (en) | 2014-03-26 | 2014-03-26 | Method and terminal for communication based on distributed cluster communication system |
| PCT/CN2014/078153 WO2015143767A1 (en) | 2014-03-26 | 2014-05-22 | Communication method based on distributed trunking communication system, and terminal |
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| CN201410117600.6A CN104954999B (en) | 2014-03-26 | 2014-03-26 | Method and terminal for communication based on distributed cluster communication system |
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| CN106604240B (en) * | 2016-12-23 | 2020-07-03 | 上海微喂网络科技有限公司 | Intelligent speaking right real-time talkback implementation method |
| CN107528681B (en) * | 2017-09-05 | 2021-04-27 | 海能达通信股份有限公司 | Data transmission method, transceiver and communication terminal |
| CN108650116B (en) * | 2018-04-16 | 2021-09-28 | 福建科立讯通信有限公司 | Grouping method for DMR transfer platform IP interconnection |
| CN109362095B (en) * | 2018-12-13 | 2021-10-08 | 成都中航信虹科技股份有限公司 | Data interaction method and device and cluster base station |
| CN109769215B (en) * | 2019-03-19 | 2021-07-16 | 福建科立讯通信有限公司 | Frequency point resource sharing system and method for digital cluster and analog cluster |
| CN112214466B (en) * | 2019-07-12 | 2024-05-14 | 海能达通信股份有限公司 | Distributed cluster system, data writing method, electronic equipment and storage device |
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