CN110225467B - Method and system for reporting GPS data through multiple channels without collision, control device and terminal - Google Patents
Method and system for reporting GPS data through multiple channels without collision, control device and terminal Download PDFInfo
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- CN110225467B CN110225467B CN201910458829.9A CN201910458829A CN110225467B CN 110225467 B CN110225467 B CN 110225467B CN 201910458829 A CN201910458829 A CN 201910458829A CN 110225467 B CN110225467 B CN 110225467B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/04—Scheduled or contention-free access
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W4/02—Services making use of location information
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Abstract
The invention relates to a method and a system for reporting GPS data without collision of multiple channels, a control device and a terminal, comprising the following steps: the control device receives an original activation signaling sent by a dispatching desk when the dispatching desk sends a subscription, and modifies the original activation signaling according to a preset rule to enable terminals with the same subscription period to be a group; the control device issues a first pull-up signaling to the terminal in the adjacent time slot of the control channel so as to instruct the terminal to jump to a specified GPS service channel according to the first pull-up signaling; and the control device sends a second pull-up signaling to the terminal after the terminal with the same subscription period jumps to the appointed GPS service channel, so that the terminal reports the GPS data according to the second pull-up signaling. The invention can ensure that the reporting of the GPS data is strictly arranged when the reporting of the GPS data is carried out, avoid collision and realize the dynamic expansion of the GPS resources, and a user can achieve the limit of expanding the GPS capacity in a mode of expanding the carrier frequency without additionally occupying a control channel, thereby improving the utilization rate of the channel resources.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and a system for reporting GPS data through multiple channels without collision, a control device, and a terminal.
Background
PDT (public Digital trunking) police Digital trunking standard has the characteristics of clear voice, high frequency spectrum efficiency, long communication distance, strong anti-jamming capability and rich voice data service functions. The current PDT data cluster system adopts a mode of combining the periodic pull-up of an auxiliary control channel and the active report of a special GPS channel to acquire the GPS position information.
In the current PDT system, the principle of GPS periodic pull-up is that an MS (Mobile Station) waits for a control channel and simultaneously receives a D _ POLL signaling sent by an adjacent timeslot, where the D _ POLL signaling carries a 24-bit Mobile Station air interface address, and pulls up GPS data of a specified MS, so that the number of MSs that can be subscribed is reduced when a user desires to subscribe for a more frequent period, for example, the user desires to subscribe for 12s, and the number of MSs that can be subscribed is only 200.
In the current GPS assisted control pull-up scheme, because the MS waits for the control channel and receives the D _ POLL signaling sent by the adjacent time slot of the control channel, the period for the terminal to report a packet of GPS data is 60 MS. In the actual takeaway use process, the reporting periods of most subscribed MSs of the users are 12s and 30s, so that the subscription number of the MSs is limited, and the phenomenon that the users have idle carrier frequencies but cannot expand the GPS auxiliary control resources is caused. In order to solve the problem, the existing solution is to introduce a function of multiple control channels through a control device, and a user can achieve the purpose of expanding GPS auxiliary control resources by configuring multiple control channels and corresponding auxiliary control channels for the control device.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for reporting GPS data through multiple channels without collision, a control device, and a terminal, aiming at the above-mentioned defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the method for reporting the GPS data by multiple channels without collision comprises the following steps:
the control device receives an original activation signaling sent by a dispatching desk when the dispatching desk sends a subscription, and modifies the original activation signaling according to a preset rule to enable terminals with the same subscription period to be a group;
the control device issues a first pull-up signaling to the terminal in the adjacent time slot of the control channel so as to instruct the terminal to jump to a specified GPS service channel according to the first pull-up signaling;
and after the terminal with the same subscription period jumps to a specified GPS service channel, the control device issues a second pull-up signaling to the terminal so that the terminal reports GPS data according to the second pull-up signaling.
Preferably, the modifying the original activation signaling according to the preset rule to make the terminals with the same subscription period into a group includes:
the control device acquires subscription periods and subscription sequences of all terminals and allocates the same characteristic values to the terminals with the same subscription period;
the control device distributes reporting numbers to the terminals in sequence according to the subscription sequence of the terminals with the same subscription period;
wherein the characteristic value is used for identifying a group attribute of the terminal.
Preferably, the first pull-up signaling includes a designated GPS service channel number, a designated GPS service slot number, a hop slot wait number, and a private slot count value.
The invention also provides a method for reporting the GPS data by multiple channels without collision, which comprises the following steps:
the terminal modifies the characteristic value and the reporting serial number of the terminal in the auxiliary control channel according to the characteristic value and the reporting serial number distributed by the control device to obtain a new characteristic value and a new reporting serial number;
the terminal receives a first pull-up signaling sent by a control device in a time slot adjacent to a control channel, and jumps to a specified GPS service channel according to the first pull-up signaling;
and after jumping to the appointed GPS service channel, the terminal receives a second pull-up signaling sent by the control device and reports GPS data according to the second pull-up signaling.
Preferably, the first pull-up signaling comprises a designated GPS service channel number, a designated GPS service time slot number, a jump time slot waiting number and a private time slot count value;
the terminal receives a first pull-up signaling issued by a control device in a time slot adjacent to a control channel, and the step of jumping to a specified GPS service channel according to the first pull-up signaling comprises the following steps:
the terminal analyzes the first pull-up signaling, and extracts the number of the appointed GPS service channel, the number of the appointed GPS service time slot, the waiting number of the jump time slot and the count value of the private time slot;
and the terminal jumps to the appointed GPS service channel corresponding to the appointed GPS service channel number according to the appointed GPS service channel number.
Preferably, the terminal performs summation operation on the private time slot count value and the skip time slot waiting number extracted from the first pull-up signaling and the self report number to obtain a new time slot; and the new time slot is a reporting time slot when the terminal reports the GPS data.
Preferably, the second pull-up signaling carries a current time slot when reporting the GPS data;
after the terminal skips to the appointed GPS service channel, the terminal receives a second pull-up signaling sent by the control device, and the reporting of the GPS data according to the second pull-up signaling comprises the following steps:
the terminal extracts the current time slot according to the second pull-up signaling;
and the terminal judges whether the condition for reporting the GPS data is met or not according to the current time slot, if so, the terminal reports the GPS data of the terminal, and if not, the terminal jumps back to a control channel.
Preferably, the terminal determines whether a condition for reporting GPS data is satisfied according to the current time slot, if so, reports GPS data of itself, and if not, jumps back to the control channel, including:
the terminal compares the self reported time slot with the current time slot;
if the reported time slot is equal to the current time slot, reporting the GPS data;
if the reporting time slot is smaller than the current time slot, continuing to wait until the current time slot is reached, and reporting the GPS data;
and if the reported time slot is larger than the current time slot, jumping back to the control channel.
The invention also provides a control device for reporting the GPS data by the multi-channel collision-free mode, which comprises a first processor, a first memory and a first communication module;
the first communication module is used for communicating with a terminal and a dispatching desk;
the first memory to store program instructions;
the first processor is configured to perform the steps of the method as described above in accordance with program instructions stored in the first memory.
The invention also provides a storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the method as described above.
The present invention also provides a terminal, comprising:
the second communication module is used for communicating with the control device;
a second memory for storing program instructions;
a second processor for performing the steps of the method as described above in accordance with program instructions stored in the second memory.
The invention also provides a storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the method as described above.
The invention also provides a system for reporting the GPS data by multiple channels without collision, which comprises the control device and the terminal.
The invention also provides a control device for reporting the GPS data by multiple channels without collision, which comprises:
the modification and distribution unit is used for receiving an original activation signaling sent by the dispatching desk when the dispatching desk sends a subscription, and modifying the original activation signaling according to a preset rule to enable terminals with the same subscription period to be a group;
the first issuing unit is used for issuing a first pull-up signaling to the terminal in the adjacent time slot of the control channel so as to instruct the terminal to jump to a specified GPS service channel according to the first pull-up signaling;
and the second issuing unit is used for issuing a second pull-up signaling to the terminal after the terminal with the same subscription period jumps to the appointed GPS service channel so that the terminal reports the GPS data according to the second pull-up signaling.
The present invention also provides a terminal, comprising:
a modification unit, configured to modify the characteristic value and the report sequence number of the secondary control channel according to the characteristic value and the report sequence number allocated by the control device, so as to obtain a new characteristic value and a new report sequence number;
the system comprises a skipping unit, a control unit and a processing unit, wherein the skipping unit is used for receiving a first pull-up signaling issued by a control device in a time slot adjacent to a control channel and skipping to a specified GPS service channel according to the first pull-up signaling;
and the reporting unit is used for receiving a second pull-up signaling sent by the control device after jumping to the specified GPS service channel, and reporting the GPS data according to the second pull-up signaling.
The method for reporting the GPS data without collision of the multiple channels is implemented by dividing the terminals with the same subscription period into one group, and setting reporting numbers among the terminals in the same group according to respective subscription sequences, thereby ensuring that the reporting of the GPS data is strictly arranged when the GPS data is reported, avoiding collision, realizing dynamic expansion of GPS resources, achieving the limit of expanding GPS capacity by a user in a mode of expanding carrier frequency, not needing to additionally occupy a control channel, and improving the utilization rate of the channel resources.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic flow chart of a first embodiment of a method for reporting GPS data in a multi-channel collision-free manner according to the present invention;
FIG. 2 is a flowchart illustrating a second embodiment of a method for reporting GPS data without collision among multiple channels according to the present invention;
fig. 3a is a schematic diagram of an original reporting queue of a terminal, and fig. 3b is a schematic diagram of a new reporting queue of the terminal;
FIG. 4 is a schematic diagram of reporting data when a terminal jumps to a specified GPS service channel;
FIG. 5 is a reporting timing chart after updating by the method for reporting GPS data without collision of multiple channels of the present invention;
fig. 6 is a logic diagram of an embodiment of a control device for multi-channel collision-free reporting of GPS data according to the present invention;
FIG. 7 is a logic diagram of an embodiment of a terminal provided by the present invention;
fig. 8 is a logic diagram of another embodiment of a control apparatus for reporting GPS data in a multi-channel collision-free manner according to an embodiment of the present invention;
fig. 9 is a logic diagram of another embodiment of a terminal according to the present invention.
Detailed Description
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. 1, a flowchart of a first embodiment of a method for reporting GPS data in a multi-channel collision-free manner according to the present invention is shown. The method can be applied in a cluster communication system, such as a PDT system.
Specifically, as shown in fig. 1, the method for reporting GPS data through multiple channels without collision includes the following steps:
step S1, the control device receives the original activation signaling sent by the dispatching console when issuing the subscription, and modifies the original activation signaling according to a preset rule, so that the terminals with the same subscription period form a group.
In the embodiment of the present invention, the control device may be a base station or a control center.
Further, step S1 includes the steps of:
step S101, the control device acquires subscription periods and subscription sequences of all terminals and allocates the same characteristic values to the terminals with the same subscription period.
And S102, the control device allocates reporting numbers to the terminals in sequence according to the subscription sequence of the terminals with the same subscription period.
For example, if N terminals with the same subscription period are provided, the N terminals are sequentially assigned with report numbers of 0 to N-1 according to the subscription sequence of the N terminals.
The characteristic value is used to identify the group attribute of the terminal, that is, all terminals with the same subscription period have the same characteristic value due to the modification of the control device.
And when the control device finishes the modification of the original activation information, the modified activation signaling is sent to the terminal.
In the embodiment of the invention, the modified activation signaling comprises a characteristic value for uniformly coding terminals of the same subscription period at one level, wherein the characteristic value is generally 8 bits, and is distributed, released and changed by a control device, and the maximum number of the characteristic values is 256. The method also comprises reporting numbers distributed to different terminals under the same characteristic value, wherein the reporting numbers are used for the terminals to identify the opportunity of jumping to the appointed GPS service channel.
According to the invention, a group of terminals with the same subscription period are grouped according to the characteristic value, and the terminals in the group with the same characteristic value are distinguished according to the report number allocated by the control device, so that a second identity is allocated to the terminal by using the mode of the characteristic value plus the report number, and the air interface address of the 24-bit terminal is effectively saved as 12 bits. To illustrate the division groups, reference is made to fig. 3a and 3 b.
Fig. 3a is a schematic diagram of an original reporting queue of a certain batch of terminals, and fig. 3b is a schematic diagram of a new reporting queue grouped according to the characteristic values.
As shown in fig. 3b, C1 is a characteristic value for indicating a 3s subscription period, C2 and C3 are characteristic values for indicating a 30s subscription period, and C4 is a characteristic value for indicating a 60s subscription period. As can be seen from fig. 3a, the subscription period of the terminal M1 is 3s, the subscription periods of the terminals M2 to M18 are all 30s, and the subscription periods of the terminals M19 to M22 are 60 s; therefore, after grouping, the terminals M1 form one group, the terminals M2 to M18 form one group, and the terminals M19 to M22 form one group.
And step S2, the control device issues a first pull-up signaling to the terminal in the adjacent time slot of the control channel to instruct the terminal to jump to the appointed GPS service channel according to the first pull-up signaling.
In the embodiment of the invention, the first pull-up signaling comprises a specified GPS service channel number, a specified GPS service time slot number, a jump time slot waiting number and a private time slot counting value.
In the embodiment of the invention, the first pull-up signaling is used for indicating the addressed terminal to report the GPS data. Wherein, the appointed GPS service channel number is used for the terminal to identify and jump to the channel with the same number. For example, a certain characteristic value is N terminals (in a group) under X, the number of the designated GPS traffic channel in the first pull-up signaling is CH1, the waiting number of the hop time slot is K, and the count value of the private time slot is T. After receiving the first pull-up signaling, the N terminals with the characteristic value X recognize CH1, K, and T, and jump to the designated GPS service channel CH1, and at the same time, determine their own jump time slots according to the jump time slot waiting number K, thereby achieving the purpose of avoiding collision, and determine their own time slots when they report GPS data after jumping to the designated GPS service channel CH1 according to the private time slot count value.
And step S3, after the terminal with the same subscription period jumps to the appointed GPS service channel, the control device issues a second pull-up signaling to make the terminal report the GPS data according to the second pull-up signaling.
In the embodiment of the present invention, the first pull-up signaling is a pull-up signaling sent by the control device on the control channel, and the second pull-up signaling is a pull-up signaling sent by the control device on the control channel.
Fig. 2 is a schematic flow chart of a second embodiment of a method for reporting GPS data in a multi-channel collision-free manner according to the present invention.
As shown in fig. 2, the method for reporting GPS data through multiple channels without collision in the embodiment includes the following steps:
and step 21, the terminal modifies the characteristic value and the reporting serial number of the terminal in the auxiliary control channel according to the characteristic value and the reporting serial number distributed by the control device to obtain a new characteristic value and a new reporting serial number.
And step 22, the terminal receives a first pull-up signaling issued by the control device in the adjacent time slot of the control channel, and jumps to the appointed GPS service channel according to the first pull-up signaling.
In the embodiment of the invention, the first pull-up signaling comprises a specified GPS service channel number, a specified GPS service time slot number, a jump time slot waiting number and a private time slot counting value.
Step S22 includes the following steps:
step S221, the terminal analyzes the first pull-up signaling, and extracts the number of the appointed GPS service channel, the number of the appointed GPS service time slot, the waiting number of the jump time slot and the count value of the private time slot.
And step S222, the terminal jumps to the appointed GPS service channel corresponding to the appointed GPS service channel number according to the appointed GPS service channel number.
Further, step S22 further includes:
step S223, the terminal performs summation operation on the private timeslot count value and the skip timeslot waiting number extracted from the first pull-up signaling and the self reporting number to obtain a new timeslot, where the new timeslot is a reporting timeslot when the terminal reports GPS data.
In the embodiment of the invention, the first pull-up signaling is used for indicating the addressed terminal to report the GPS data. Wherein, the appointed GPS service channel number is used for the terminal to identify and jump to the channel with the same number. For example, a certain characteristic value is N terminals (in a group) under X, the number of the designated GPS traffic channel in the first pull-up signaling is CH1, the waiting number of the hop time slot is K, and the count value of the private time slot is T. After receiving the first pull-up signaling, the N terminals with the characteristic value X recognize CH1, K, and T, and jump to the designated GPS service channel CH1, and at the same time, determine their own jump time slots according to the jump time slot waiting number K, thereby achieving the purpose of avoiding collision, and determine their own time slots when jumping to the designated GPS service channel CH1 and reporting GPS data by themselves according to the private time slot count value T and the jump time slot waiting number K.
The specific determination process is as follows: after the terminal jumps to the respective appointed GPS service channel, the private time slot count value T, the appointed service channel number CH1 and the jump time slot waiting number K in the first pull-up signaling are recorded, the private time slot count value T, the jump time slot waiting number K and the self reporting number are summed, and the sum of the private time slot count value T, the jump time slot waiting number K and the self reporting number is the time slot which the terminal should report when the appointed GPS service channel reports the GPS data.
And step 23, after jumping to the designated GPS service channel, the terminal receives a second pull-up signaling sent by the control device, and reports GPS data according to the second pull-up signaling.
In the embodiment of the invention, the second pull-up signaling carries the current time slot when the GPS data is reported.
Further, step S23 includes:
and step S231, the terminal extracts the current time slot according to the second pull-up signaling.
And step S232, the terminal judges whether the condition for reporting the GPS data is met or not according to the current time slot, if so, the terminal reports the GPS data of the terminal, and if not, the terminal jumps back to the control channel.
Step S232 is specifically implemented by the following method:
the terminal compares the self reported time slot with the current time slot; if the reported time slot is equal to the current time slot, reporting the GPS data; if the reporting time slot is smaller than the current time slot, continuing to wait until the current time slot is reached, and reporting the GPS data; and if the reported time slot is larger than the current time slot, jumping back to the control channel.
In the embodiment of the invention, the GPS data reported by the terminal on the appointed GPS service channel comprises the reporting period of the terminal, the reporting time slot of the terminal and the like.
Fig. 4 shows specific skipping and GPS data reporting, where C _ DPOLL in fig. 4 is a first pull-up signaling, and NUM represents a field of a private timeslot count value, as shown in fig. 4, a terminal M2 locks a traffic channel and skips to an assigned GPS traffic channel, and when a second pull-up signaling (P _ DPOLL) is received, corresponding determination is performed, and as can be seen from fig. 4, a terminal M2 meets a reporting condition, and reports GPS data.
When a large number of terminals are registered on the same base station, when the method for reporting GPS data without collision by using multiple channels can acquire the GPS data of all the terminals, only a first pull-up signaling (C _ DPOLL) is required to be issued on an auxiliary control channel, the first pull-up signaling carries different characteristic values and assigned channel numbers, the first pull-up signaling can reach terminals of different groups, and the terminals sequentially jump to respective assigned GPS service channels according to the sequence configured by the report numbers and report the GPS data. As shown in fig. 5, in the updated reporting timing, at the same time (NUM is 104), the terminal M3 and the terminal M19 report the GPS data on the channel CH1 and the channel CH2, respectively, which effectively increases the capacity of the system for reporting the GPS data.
Furthermore, the method for reporting GPS data without collision of multiple channels of the embodiment of the invention needs to modify the characteristic value and the reporting number of the terminal when the reporting period of the terminal needs to be modified, the terminal of the embodiment of the invention can modify the characteristic value grouping information of the corresponding terminal reported by the current time slot and identify the EN (enable switch) field carried in the signaling (the EN field is used for controlling whether to change the characteristic value of the terminal) in real time no matter the terminal receives the first pull-up signaling on the auxiliary control channel or receives the second pull-up signaling on the appointed GPS service channel, and modifying or not modifying the characteristic value of the EN field according to the identified identification of the EN field, if the EN field is identified as modified, and modifying the characteristic value of the self according to the new characteristic value carried in the signaling into the characteristic value which is the same as the new characteristic value carried in the signaling, and correspondingly modifying the report number. Therefore, in the embodiment of the invention, when the reporting period of the terminal needs to be modified, the activation signaling does not need to be issued again.
In addition, it should be noted that, when the method for reporting GPS data without collision in multiple channels according to the embodiment of the present invention issues the first pull-up signaling in the adjacent time slot of the control channel, the corresponding time slot of the control channel may also report GPS data of another group of terminals at the same time.
Referring to fig. 6, the present invention provides a control apparatus for reporting GPS data in a multi-channel collision-free manner, which includes a first processor 602, a first memory 601, and a first communication module 603.
The first communication module 603 is used for communicating with a terminal and a dispatching desk.
A first memory 601 for storing program instructions.
A first processor 602, configured to perform the following steps according to program instructions stored in the first memory 601:
and receiving an original activation signaling sent by the dispatching station when the dispatching station sends the subscription, and modifying the original activation signaling according to a preset rule to enable terminals with the same subscription period to be a group.
And issuing a first pull-up signaling to the terminal in the adjacent time slot of the control channel so as to instruct the terminal to jump to the appointed GPS service channel according to the first pull-up signaling.
And after the terminal with the same subscription period jumps to the appointed GPS service channel, sending a second pull-up signaling to the terminal so that the terminal reports the GPS data according to the second pull-up signaling.
Further, the first processor 602 is further configured to execute the steps of the method for reporting GPS data without collision for multiple channels disclosed in the embodiment of the present invention.
The embodiment of the present invention further discloses a storage medium, which is a readable storage medium, wherein a computer program is stored on the storage medium, and when being executed by the processor 602, the stored computer program implements the steps of the method for reporting GPS data without collision in multiple channels disclosed in the embodiment of the present invention.
Referring to fig. 7, the present invention provides a terminal including:
and a second communication module 703, configured to communicate with a control device.
A second memory 701 for storing program instructions.
A second processor 702, configured to perform the following steps according to the program instructions stored in the second memory 701:
and modifying the characteristic value and the reporting serial number of the auxiliary control channel according to the characteristic value and the reporting serial number distributed by the control device to obtain a new characteristic value and a new reporting serial number.
And receiving a first pull-up signaling issued by the control device in the adjacent time slot of the control channel, and skipping to the appointed GPS service channel according to the first pull-up signaling.
And after jumping to the appointed GPS service channel, receiving a second pull-up signaling sent by the control device, and reporting GPS data according to the second pull-up signaling.
The invention also provides a system for reporting the GPS data by multiple channels without collision, which comprises the control device and the terminal.
Further, the first processor 702 is further configured to execute the steps of the method for reporting GPS data without collision in multiple channels disclosed in the embodiment of the present invention.
The embodiment of the present invention further discloses a storage medium, which is a readable storage medium, wherein a computer program is stored on the storage medium, and when being executed by the processor 702, the stored computer program implements the steps of the method for reporting GPS data without collision in multiple channels disclosed in the embodiment of the present invention.
Referring to fig. 8, the present invention provides a control device for reporting GPS data in a multi-channel collision-free manner, including:
a modification allocating unit 801, configured to receive an original activation signaling sent by a scheduling station when issuing a subscription, and modify the original activation signaling according to a preset rule, so that terminals with the same subscription period form a group.
And a first sending unit 802, configured to send a first pull-up signaling to the terminal in a time slot adjacent to the control channel, so as to instruct the terminal to jump to the specified GPS service channel according to the first pull-up signaling.
A second issuing unit 803, configured to issue a second pull-up signaling after the terminal with the same subscription period jumps to the specified GPS service channel, so that the terminal reports GPS data according to the second pull-up signaling.
Referring to fig. 9, the present invention also provides a terminal including:
a modifying unit 901, configured to modify the eigenvalue and the reporting sequence number of the secondary control channel according to the eigenvalue and the reporting sequence number allocated by the control device, so as to obtain a new eigenvalue and a new reporting sequence number.
A skipping unit 902, configured to receive a first pull-up signaling issued by the control device in an adjacent time slot of the control channel, and skip to a specified GPS service channel according to the first pull-up signaling.
A reporting unit 903, configured to receive a second pull-up signaling sent by the control device after jumping to the specified GPS service channel, and report GPS data according to the second pull-up signaling.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (15)
1. A method for reporting GPS data by multiple channels without collision is characterized by comprising the following steps:
the control device receives an original activation signaling sent by a dispatching desk when the dispatching desk sends a subscription, and modifies the original activation signaling according to a preset rule to enable terminals with the same subscription period to be a group; the control device acquires subscription periods of all terminals, distributes the same characteristic value to the terminals with the same subscription period, and groups the terminals according to the distributed characteristic value to enable the terminals with the same subscription period to be a group;
the control device issues a first pull-up signaling to the terminal in the adjacent time slot of the control channel so as to instruct the terminal to jump to a specified GPS service channel according to the first pull-up signaling; the first pull-up signaling comprises: appointing a GPS service channel number; the specified GPS service channel number is used for the terminal to identify and jump to a specified GPS service channel with the same number as the specified GPS service channel number;
and the control device sends a second pull-up signaling to the terminal after the terminal with the same subscription period jumps to the appointed GPS service channel, so that the terminal reports the GPS data according to the second pull-up signaling.
2. The method of claim 1, wherein the modifying the original activation signaling according to the predetermined rule to make the terminals with the same subscription period into a group comprises:
the control device acquires subscription sequences of all terminals;
the control device distributes reporting numbers to the terminals in sequence according to the subscription sequence of the terminals with the same subscription period;
wherein the characteristic value is used for identifying a group attribute of the terminal.
3. The method of claim 1, wherein the first pull-up signaling includes a specified GPS service slot number and a wait number for a jump slot and a count value for a private slot.
4. A method for reporting GPS data without collision of multiple channels is characterized by comprising the following steps:
the terminal modifies the characteristic value and the reporting serial number of the terminal in the auxiliary control channel according to the characteristic value and the reporting serial number distributed by the control device to obtain a new characteristic value and a new reporting serial number; the characteristic value distributed by the control device is the characteristic value distributed by the control device according to the subscription period of the terminal; the characteristic values are used for grouping the terminals by the control device according to the distributed characteristic values, so that the terminals with the same subscription period form a group;
the terminal receives a first pull-up signaling sent by a control device in a time slot adjacent to a control channel, and jumps to a specified GPS service channel according to the first pull-up signaling; the first pull-up signaling comprises: appointing a GPS service channel number; the terminal jumps to the appointed GPS service channel according to the first pull-up signaling comprises the following steps: the terminal skips to a designated GPS service channel with the same number as the designated GPS service channel according to the designated GPS service channel number;
and after jumping to the appointed GPS service channel, the terminal receives a second pull-up signaling sent by the control device and reports GPS data according to the second pull-up signaling.
5. The method of claim 4, wherein the first pull-up signaling includes a specified GPS service time slot number, a waiting number of a jump time slot, and a count value of a private time slot;
the terminal receives a first pull-up signaling issued by a control device in a time slot adjacent to a control channel, and the step of jumping to a specified GPS service channel according to the first pull-up signaling comprises the following steps:
the terminal analyzes the first pull-up signaling, and extracts the number of the appointed GPS service channel, the number of the appointed GPS service time slot, the waiting number of the jump time slot and the count value of the private time slot;
and the terminal jumps to the appointed GPS service channel corresponding to the appointed GPS service channel number according to the appointed GPS service channel number.
6. The method of claim 5, wherein the terminal performs summation operation on the private timeslot count value and the skip timeslot wait number extracted from the first pull-up signaling and the self report number to obtain a new timeslot; and the new time slot is a reporting time slot when the terminal reports the GPS data.
7. The method of claim 6, wherein the second pull-up signaling carries a current time slot when reporting the GPS data;
after the terminal skips to the appointed GPS service channel, the terminal receives a second pull-up signaling sent by the control device, and the reporting of the GPS data according to the second pull-up signaling comprises the following steps:
the terminal extracts the current time slot according to the second pull-up signaling;
and the terminal judges whether the condition for reporting the GPS data is met or not according to the current time slot, if so, the terminal reports the GPS data of the terminal, and if not, the terminal jumps back to a control channel.
8. The method of claim 7, wherein the terminal determines whether the condition for reporting the GPS data is satisfied according to the current time slot, if so, reports the GPS data of the terminal, and if not, jumps back to the control channel, including:
the terminal compares the self reported time slot with the current time slot;
if the reported time slot is equal to the current time slot, reporting the GPS data;
if the reporting time slot is smaller than the current time slot, continuing to wait until the current time slot is reached, and reporting the GPS data;
and if the reported time slot is larger than the current time slot, jumping back to the control channel.
9. A control device for reporting GPS data without collision of multiple channels is characterized by comprising a first processor, a first memory and a first communication module;
the first communication module is used for communicating with a terminal and a dispatching desk;
the first memory to store program instructions;
the first processor configured to perform the steps of the method of any one of claims 1-3 in accordance with program instructions stored in the first memory.
10. A storage medium having a computer program stored thereon, the computer program, when being executed by a processor, performing the steps of the method according to any of the claims 1-3.
11. A terminal, comprising:
the second communication module is used for communicating with the control device;
a second memory for storing program instructions;
a second processor for performing the steps of the method of any of claims 4-8 in accordance with program instructions stored in said second memory.
12. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the steps of the method according to any of claims 4-8.
13. A system for reporting GPS data in a multi-channel collision-free manner, comprising the control apparatus of claim 9 and the terminal of claim 11.
14. A control device for multi-channel collision-free reporting of GPS data is characterized by comprising:
the modification and distribution unit is used for receiving an original activation signaling sent by the dispatching desk when the dispatching desk sends a subscription, and modifying the original activation signaling according to a preset rule to enable terminals with the same subscription period to be a group; modifying the original activation signaling according to a preset rule to enable terminals with the same subscription period to form a group comprises the following steps: acquiring subscription periods of all terminals, distributing the same characteristic values to the terminals with the same subscription period, and grouping the terminals according to the distributed characteristic values to enable the terminals with the same subscription period to be a group;
the first issuing unit is used for issuing a first pull-up signaling to the terminal in the adjacent time slot of the control channel so as to instruct the terminal to jump to a specified GPS service channel according to the first pull-up signaling; the first pull-up signaling comprises: appointing a GPS service channel number; the specified GPS service channel number is used for the terminal to identify and jump to a specified GPS service channel with the same number as the specified GPS service channel number;
and the second issuing unit is used for issuing a second pull-up signaling to the terminal after the terminal with the same subscription period jumps to the appointed GPS service channel so that the terminal reports the GPS data according to the second pull-up signaling.
15. A terminal, comprising:
a modification unit, configured to modify the characteristic value and the report sequence number of the secondary control channel according to the characteristic value and the report sequence number allocated by the control device, so as to obtain a new characteristic value and a new report sequence number; the characteristic value distributed by the control device is the characteristic value distributed by the control device according to the subscription period of the terminal;
the system comprises a skipping unit, a control unit and a processing unit, wherein the skipping unit is used for receiving a first pull-up signaling issued by a control device in a time slot adjacent to a control channel and skipping to a specified GPS service channel according to the first pull-up signaling; the first pull-up signaling comprises: appointing a GPS service channel number; the terminal jumps to the appointed GPS service channel according to the first pull-up signaling comprises the following steps: the terminal skips to a designated GPS service channel with the same number as the designated GPS service channel according to the designated GPS service channel number;
and the reporting unit is used for receiving a second pull-up signaling sent by the control device after jumping to the specified GPS service channel, and reporting the GPS data according to the second pull-up signaling.
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