CN1870782A - Method and equipment for supporting trunking service by TD-SCDMA system - Google Patents
Method and equipment for supporting trunking service by TD-SCDMA system Download PDFInfo
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- CN1870782A CN1870782A CN 200510071914 CN200510071914A CN1870782A CN 1870782 A CN1870782 A CN 1870782A CN 200510071914 CN200510071914 CN 200510071914 CN 200510071914 A CN200510071914 A CN 200510071914A CN 1870782 A CN1870782 A CN 1870782A
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Abstract
This invention discloses a method and a device of a TD-SCDMA system for supporting cluster services, in which, the method includes: setting frequency points of ordinary mobile communication service and cluster service, when a terminal starts up a request of ordinary mobile service, a base station sets up connection with the terminal by the ordinary mobile communication service frequency point, when the terminal starts up the cluster service request, the base station sets up communication connection with the terminal by the cluster service frequency point. Devices of the base station of the TD-SCDMA system supporting cluster services include: a radio R-T set, a cluster R/T set, a control unit and an antenna unit, the terminal devices include: a T/R set, a cluster T/R set, a control unit and a user interface unit.
Description
Technical field
The present invention relates to the mobile communication technology field, be specifically related to the method and apparatus that a kind of TD-SCDMA system supports group service.
Background technology
The Digital Clustering technology is widely used in command scheduling departments such as public security, traffic, People's Armed Police, the administration of justice, army, fire-fighting, civil aviaton, electric power, oil field, factories and miness, first-aid centre.Digital cluster system generally adopts the communication form of single worker, half-duplex or full duplex, needs to solve the fusion problem of common mobile service and cluster characteristics business.
When utilizing TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) technology to realize that Digital Clustering is used, general TD-SCDMA digital cluster system at Digital Clustering application and development special use, this moment the special-purpose TD-SCDMA digital cluster system cluster characteristics business of Digital Clustering in using of should being responsible for continuing, the plain old telephone interconnect services during the Digital Clustering of being responsible for again simultaneously continuing is used.Because comprise 6 professional TS (time slot) in the physical layer frame structure of TD-SCDMA, each professional TS both can support the cluster characteristics business, also can support the plain old telephone interconnect services, even can support two kinds of business simultaneously.
When the TD-SCDMA digital cluster system continues above-mentioned two classes when professional simultaneously, the service communication of above-mentioned two class different qualities will be supported in the terminal of TD-SCDMA digital cluster system and base station on a frequency, cluster characteristics business and plain old telephone interconnect services will be utilized radio channel resource same in the business time-slot this moment, require the TD-SCDMA digital cluster system to adopt unified RRM process to manage two class business simultaneously, and the physical layer of wireless channel need adopt unified mechanism.
This way to manage will make management process very complicated, for example, admit the distribution of management, wireless channel of control all more numerous and diverse and uncontrollable in realization.Because the professional wireless channel that uses of cluster characteristics does not require the symmetry of uplink and downlink, and the plain old telephone interconnect services needs to use paired radio channel resource.And when the physical layer of wireless channel need adopt the unified flexibility that has limited physical layer mechanism when machine-processed, the cluster characteristics business generally requires base station system omnidirectional to cover, and the plain old telephone interconnect services allows base station system to adopt the wave beam forming technology.
TD-SCDMA technology realizes having adopted smart antenna principle, the essence of smart antenna to make it be applied to the plain old telephone interconnect services easily, and is not suitable for the cluster characteristics business.If therefore supporting two kinds of business certainly will require the base station of TD-SCDMA special digital group system to handle simultaneously on a frequency simultaneously uses smart antenna and does not use two kinds of diverse situations of smart antenna.And this while treatment mechanism can make system especially the processing procedure of base station is very complicated, bring many uncertain, unreliable factors also can for the performance of system.
Summary of the invention
The purpose of this invention is to provide the method that a kind of TD-SCDMA system supports group service, support two classes to have the business of different qualities to overcome prior art by a TD-SCDMA frequency, make the complicated and uncontrollable shortcoming of RRM, when providing group service and common mobile communication business based on existing TD-SCDMA system, the burden of mitigation system RRM, the assurance system realizes the performance of different business.
Another object of the present invention provides base station and the terminal that a kind of TD-SCDMA system supports group service, realizes the support to digital group service in existing TD-SCDMA system.
For this reason, the invention provides following technical scheme:
A kind of TD-SCDMA system supports the method for group service, and described TD-SCDMA system comprises: terminal, base station and the network equipment, and described method comprises step:
A, set common mobile communication business frequency and group service frequency respectively;
B, when described terminal is initiated common mobile service request, described base station establishes a communications link by common mobile communication business frequency and described terminal;
C, when described terminal is initiated the group service request, described base station establishes a communications link by group service frequency and described terminal.
Preferably, described terminal realizes the switching of common mobile communication business and group service mode of operation by pattern register.
Preferably, described terminal is initiated common mobile service request and group service request by different transceivers respectively.
Preferably, described base station establishes a communications link at described common mobile communication business frequency and described group service frequency and described terminal by different transceivers respectively.
Alternatively, described system adopts smart antenna to carry out common mobile service.
Alternatively, described system adopts smart antenna or common antenna to carry out group service.
A kind of TD-SCDMA system supports the base station of group service, comprising:
Base station radio receipts/sender works in the first predetermined frequency, is used to set up with the common mobile communication business of described system terminal be connected;
Cluster of base stations receipts/sender works in the second predetermined frequency, is used to set up with the group service of described system terminal be connected;
Base station control unit, receive with described cluster of base stations with described base station radio receipts/sender respectively/sender links to each other, be used for according to the described base station radio receipts/sender of signal controlling of the described terminal that receives and described cluster of base stations receipts/sender be tuned to described first be scheduled to frequency and described second and be scheduled to frequency;
Base station antenna unit, receive with described cluster of base stations with described base station radio receipts/sender respectively/sender links to each other, and is used for the transmitting/receiving wireless signal.
Described base station antenna unit comprises:
Smart antenna links to each other with described base station radio receipts/sender, is used for the mode transmitting/receiving wireless signal with aerial array;
Common antenna links to each other with described cluster of base stations receipts/sender, is used for single antenna mode transmitting/receiving wireless signal.
Described base station control unit comprises:
Baseband processing unit is used to handle the baseband signal of described base station;
The base station controller interface unit is used to finish the physical connection with base station controller.
Alternatively, described base station control unit also comprises:
The Operation and Maintenance interface unit is used for the Operation and Maintenance information of described base station control unit is passed to the Operation and Maintenance platform of base station.
Alternatively, described base station control unit also comprises:
The upper-layer protocol processing unit is used to finish the protocol processes of base station application part.
A kind of TD-SCDMA system supports the terminal of group service, comprising:
Terminal wireless receipts/sender works in the first predetermined frequency, is used to set up with the common mobile communication business of described system base-station be connected;
Terminal cluster receipts/sender works in the second predetermined frequency, is used to set up with the group service of described system base-station be connected;
User interface section is used to receive user's control commands;
Terminal Control Element, receive with described terminal wireless with described user interface section respectively/sender and described terminal cluster receipts/sender link to each other, be used for according to the control command that described user interface section receives control described terminal wireless receipts/sender and described terminal cluster receipts/sender be tuned to described first be scheduled to frequency and described second and be scheduled to frequency;
The terminal antenna unit links to each other with described terminal cluster receipts/sender with described terminal wireless receipts/sender respectively, is used for the transmitting/receiving wireless signal.
Described user interface section comprises:
Keyboard is used to control described terminal and initiates common mobile communication business;
The PTT button is used to control described terminal and initiates group service.
By above technical scheme provided by the invention as can be seen, the present invention is based on existing TD-SCDMA system, utilize a new frequency to use for digital clustering operation, and on base station and terminal, support common mobile communication business and cluster communication service by different transceivers respectively.In order to make system reach better transmitting-receiving performance,, also can use different antennas to different business according to the different business characteristic.Such as, for common mobile communication business, adopt space division multiple access (SDMA) technology of smart antenna, utilize the difference of signal in transmission direction, with same frequency or same time slot, come, maximally utilise limited channel resource with the signal distinguishing of code channel.Compare with non-directional antenna, the antenna gain of its uplink and downlink link improves greatly, has reduced transmitted power level, has improved signal to noise ratio, has overcome the influence of Channel Transmission decline effectively.Simultaneously because the direct directed towards user of antenna lobe, reduced and this sub-district between other user, and and the neighbor cell user between interference, and reduced the multipath effect of mobile telecommunication channel.For group service,, therefore can use omnidirectional antenna because the residing geographic range in the side of answering may be very big.
Support common mobile communication business and cluster communication service respectively owing to adopt different frequencies, therefore when being provided with common communication service, can adopt group service different physical layer mechanism, the design and the system wireless resource management of system have been simplified, avoid system to support the systematic function fluctuation that two kinds of different business cause simultaneously, guaranteed the quality of different business.
Description of drawings
Fig. 1 is the structural representation of existing TD-SCDMA digital mobile communication system;
Fig. 2 is the realization flow figure of the inventive method;
Fig. 3 is the workflow diagram of terminal under multiple frequency point system in the inventive method;
Fig. 4 is the architecture of base station block diagram that TD-SCDMA of the present invention system supports group service;
Fig. 5 is the first example structure block diagram of base station of the present invention;
Fig. 6 is the second example structure block diagram of base station of the present invention;
Fig. 7 is the terminal structure block diagram that TD-SCDMA of the present invention system supports group service.
Embodiment
Core of the present invention is to utilize the characteristics of TD-SCDMA digital mobile communication system and trunked communication system, adopt different transceivers respectively, with its be tuned to corresponding frequency common mobile communication business and cluster communication service are provided, thereby on the TD-SCDMA digital mobile communication system, carry out group service.
The present technique field personnel know, the professional communication mode that mainly embodies participant and carried out with plain old telephone interconnect services difference of cluster characteristics is different, cluster characteristics business need group-call/multicast, the residing geographic range in the side of answering may be very big, and the side of answering of plain old telephone interconnect services is generally single member, and its geographical position of living in is narrow and small relatively.Therefore,, can also adopt different antennas, satisfy the transmitting-receiving demand of different business better, improve systematic function at the transceiver that different business is provided.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
With reference to Fig. 1, Fig. 1 is existing TD-SCDMA digital mobile communication system structural representation:
In the TD-SCDMA digital mobile communication system, mainly comprise three parts: user terminal S1, base station S2, network equipment S3.
Wherein, the base station is Node B and auxiliary equipment thereof in the TD-SCDMA system, as the repeater trunking, is responsible for establishing a communications link between the user terminal and the network equipment; Network equipment S3 mainly comprises radio network controller, mobile switching centre, GPRS support node, special applications server etc., is responsible for finishing the processing of digital mobile communication business, as the functions such as storage of call treatment, mobile management, CAMEL-Subscription-Information.
The present invention promptly is on existing TD-SCDMA system-based shown in Figure 1, makes it support digital group service simultaneously.
With reference to Fig. 2, Fig. 2 shows the realization flow of the inventive method, may further comprise the steps:
Step 201: set common mobile communication business frequency and group service frequency respectively.
Between 100-2500MHz, common mobile communication business frequency and group service frequency take the bandwidth of different 1.6MHz respectively such as, the tuned frequency of setting wireless transceiver.Both may be same frequency range, for example near two independent frequencies the 2GHz frequency range also may be two frequency ranges, for example two independent frequencies on 2GHz and the 450MHz.The group service frequency can also be separated, promptly can utilize two or more frequencies to support dissimilar group services, for example a frequency is supported individual calling, and another supports group calling.
Step 202: when terminal was initiated common mobile service request, the base station established a communications link by common mobile communication business frequency and terminal.
Step 203: when terminal was initiated the group service request, the base station established a communications link by group service frequency and terminal.
Terminal can realize the switching of common mobile communication business and group service mode of operation by the mode of registration.
Adapt with different frequencies, terminal can be initiated common mobile service request and group service request by different transceivers.Similarly, the base station also can establish a communications link at described common mobile communication business frequency and described group service frequency and described terminal by different transceivers.
Performance when guaranteeing that system carries out different business can adopt smart antenna to receive and dispatch common mobile service signal; Adopt smart antenna or common antenna receiving-sending group service signal.
In system of the present invention, the workflow of terminal as shown in Figure 3:
Step 301: starting up of terminal is initiated enrollment process.
Step 302: it is to register to common mobile communication system that the user selects according to the prompting of terminal, still registers to trunked mobile communication system.According to user's selection, corresponding step will be entered into respectively.
If the user selects to register to cluster application server, then be operated in the cluster frequency, promptly enter step 303: terminal registration is to the group service pattern.
If the user selects to register to common mobile communication system, then be operated in general T D-SCDMA system frequency, promptly enter step 304: terminal registration is to common mobile service pattern.
Under different business models, in step 305 and step 307, judged whether service request respectively.
If there is not service request, then enter step 306: terminal resides at idle pulley.
If under cluster mode service request is arranged, this moment, terminal can only be initiated the trunked call request, can not initiate common mobile service request.At this moment, enter step 308: system utilizes cluster frequency supporting business to be connected with terminal.
If under common mobile service pattern service request is arranged, this moment, terminal can only be initiated common mobile service request, can not initiate the trunked call request.At this moment, enter step 309: system utilizes common frequency supporting business to be connected with terminal.
After different business finished, all forward step 310 to: whether terminal judges user registered.
If the user does not select registration, then directly forward step 306 to: terminal resides at idle pulley.
If the user selects registration, then jump to step 302: judge that the user selects the mode of operation that will register.
For the processing that realizes adopting different frequencies to receive and dispatch to different business information, the present invention also provides relevant base station and terminal equipment, make in existing TD-SCDMA system,, make system support common mobile communication business and Digital Clustering business simultaneously by simple design.
Fig. 4 shows the structured flowchart that TD-SCDMA of the present invention system supports the base station of group service:
This base station comprises: work in the base station radio receipts/sender 404 of the first predetermined frequency, work in the cluster of base stations receipts/sender 403 of the second predetermined frequency, base station control unit 405, base station antenna unit 400.
Wherein, base station radio receipts/sender 404 is used to set up with the common mobile communication business of system terminal and is connected; Cluster of base stations receipts/sender 403 is used to set up with the group service of system terminal and is connected; With base station control unit 405 that base station radio receipts/sender 404 links to each other with cluster of base stations receipts/sender 403 be used for according to the signal controlling base station radio receipts/sender of the terminal that receives and cluster of base stations receipts/sender be tuned to first be scheduled to frequency and second and be scheduled to frequency.
Base station radio receipts/sender 404 supports the tuning of cluster mobile telecommunication channel, and cluster of base stations receipts/sender 403 supports the tuning of common mobile telecommunication channel.
Base station radio receipts/sender 404 and cluster of base stations receipts/sender 403 can adopt same group of antenna, such as, by improved intelligent antenna technology, utilize one group of wave beam to cover whole sub-district, each beam transmission is down physical channel independently, and the cluster group user can be answered by selecting a wherein a certain group wave beam.
Base station radio receipts/sender 404 also can adopt different antennas with cluster of base stations receipts/sender 403, as shown in FIG. smart antenna 402 that links to each other with base station radio receipts/sender 404 and the common antenna 401 that links to each other with cluster of base stations receipts/sender 403.
The tuned frequency that common antenna 401 and smart antenna 402 are supported is generally between 100-2500MHz.The 401 tuning frequencies of supporting are C, the 402 tuning frequencies of supporting are D, frequency C and frequency D take the bandwidth of different 1.6MHz respectively, these two frequencies both may be same frequency ranges, near two independent frequencies the 2GHz frequency range for example also may be for example two independent frequencies on 2GHz and the 450MHz of two frequency ranges.The base station also may be separated frequency C, promptly can utilize two or more frequencies to support dissimilar group services, and for example a frequency is supported individual calling, and another supports group calling etc., and concrete application can be corresponding with terminal.
Base station control unit 405 comprises baseband processing unit 41 and base station controller interface unit 42.Wherein, baseband processing unit 41 is used to handle the baseband signal of base station; Base station controller interface unit 42 is used to finish the physical connection with base station controller.
The wireless channel of base station control unit 405 control base station radio receipts/ senders 403 and 403 work of cluster of base stations receipts/sender, promptly can instruct transceiver be tuned on which time slot, and via transceiver transmit and reception signaling information.
For the ease of management to the base station, support the first example structure block diagram of the base station of group service referring to TD-SCDMA of the present invention shown in Figure 5 system, base station control unit 405 also comprises:
Operation and Maintenance interface unit 43 is used for the Operation and Maintenance information of base station control unit 405 is passed to the Operation and Maintenance platform of base station.
In order to realize and the communicating by letter of base station controller higher layer applications part, support the second example structure block diagram of the base station of group service referring to TD-SCDMA of the present invention shown in Figure 6 system, base station control unit 405 also comprises:
Upper-layer protocol processing unit 44 is used to finish the protocol processes of base station application part.
Fig. 7 shows the structured flowchart that TD-SCDMA of the present invention system supports the terminal of group service:
This terminal comprises: work in the terminal wireless receipts/sender 704 of the first predetermined frequency, work in the terminal cluster receipts/sender 703 of the second predetermined frequency, Terminal Control Element 705, user interface section 706, terminal antenna unit 700.
Wherein, terminal wireless receipts/sender 704 is used to set up with the common mobile communication business of system base-station and is connected; Terminal cluster receipts/sender 703 is used to set up with the group service of system base-station and is connected.User interface section 706 receives user's control commands; Respectively the Terminal Control Element 705 that links to each other with user interface section 706, terminal wireless receipts/sender 704 and terminal cluster receipts/sender 703 be used for the wireless receipts/sender 704 of control command control terminal that receives according to user interface section and terminal cluster receipts/sender 703 be tuned to the first predetermined frequency and second be scheduled to frequency.
Terminal wireless receipts/sender 704 supports the tuning of cluster mobile telecommunication channel, and terminal cluster receipts/sender 703 supports the tuning of common mobile telecommunication channel.
Terminal wireless receipts/sender 704 and terminal cluster receipts/sender 703 can adopt same group of antenna, also can adopt different antennas, as shown in FIG. antenna 702 that links to each other with terminal wireless receipts/sender 704 and the antenna 701 that links to each other with terminal cluster receipts/sender 703.
The tuned frequency that antenna 701 and antenna 702 are supported is generally between 100-2500MHz.The tuning frequency that antenna 701 is supported is A, the tuning frequency that antenna 702 is supported is B, frequency A and frequency B take the bandwidth of different 1.6MHz respectively, these two frequencies both may be near for example two independent frequencies the 2GHz frequency range of same frequency range, also may be for example two independent frequencies on 2GHz and the 450MHz of two frequency ranges.Terminal also may be separated frequency B, promptly can utilize two or more frequencies to support dissimilar group services, and for example a frequency is supported individual calling, and another supports group calling etc., and concrete application can be corresponding with the base station.
Equally, Terminal Control Element 705 also comprises baseband processing unit, the baseband signal of processing terminal side.
User interface section 706 comprises: be used for control terminal and initiate common mobile communication business keyboard 71 and be used for the PTT button 72 that control terminal is initiated group service.
In addition, also comprise: earphone and microphone (not shown) etc. realize the indispensable parts of wireless communication.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (13)
1, a kind of TD-SCDMA system supports the method for group service, and described TD-SCDMA system comprises: terminal, base station and the network equipment is characterized in that described method comprises step:
A, set common mobile communication business frequency and group service frequency respectively;
B, when described terminal is initiated common mobile service request, described base station establishes a communications link by common mobile communication business frequency and described terminal;
C, when described terminal is initiated the group service request, described base station establishes a communications link by group service frequency and described terminal.
2, method according to claim 1 is characterized in that, described terminal realizes the switching of common mobile communication business and group service mode of operation by pattern register.
3, method according to claim 1 and 2 is characterized in that, described terminal is initiated common mobile service request and group service request by different transceivers respectively.
4, method according to claim 1 and 2 is characterized in that, described base station establishes a communications link at described common mobile communication business frequency and described group service frequency and described terminal by different transceivers respectively.
5, method according to claim 1 and 2 is characterized in that, described system adopts smart antenna to carry out common mobile service.
6, method according to claim 1 and 2 is characterized in that, described system adopts smart antenna or common antenna to carry out group service.
7, a kind of TD-SCDMA system supports the base station of group service, it is characterized in that, comprising:
Base station radio receipts/sender works in the first predetermined frequency, is used to set up with the common mobile communication business of described system terminal be connected;
Cluster of base stations receipts/sender works in the second predetermined frequency, is used to set up with the group service of described system terminal be connected;
Base station control unit, receive with described cluster of base stations with described base station radio receipts/sender respectively/sender links to each other, be used for according to the described base station radio receipts/sender of signal controlling of the described terminal that receives and described cluster of base stations receipts/sender be tuned to described first be scheduled to frequency and described second and be scheduled to frequency;
Base station antenna unit, receive with described cluster of base stations with described base station radio receipts/sender respectively/sender links to each other, and is used for the transmitting/receiving wireless signal.
8, base station according to claim 7 is characterized in that, described base station antenna unit comprises:
Smart antenna links to each other with described base station radio receipts/sender, is used for the mode transmitting/receiving wireless signal with aerial array;
Common antenna links to each other with described cluster of base stations receipts/sender, is used for single antenna mode transmitting/receiving wireless signal.
9, base station according to claim 7 is characterized in that, described base station control unit comprises:
Baseband processing unit is used to handle the baseband signal of described base station;
The base station controller interface unit is used to finish the physical connection with base station controller.
10, base station according to claim 9 is characterized in that, described base station control unit also comprises:
The Operation and Maintenance interface unit is used for the Operation and Maintenance information of described base station control unit is passed to the Operation and Maintenance platform of base station.
11, base station according to claim 9 is characterized in that, described base station control unit also comprises:
The upper-layer protocol processing unit is used to finish the protocol processes of base station application part.
12, a kind of TD-SCDMA system supports the terminal of group service, it is characterized in that, comprising:
Terminal wireless receipts/sender works in the first predetermined frequency, is used to set up with the common mobile communication business of described system base-station be connected;
Terminal cluster receipts/sender works in the second predetermined frequency, is used to set up with the group service of described system base-station be connected;
User interface section is used to receive user's control commands;
Terminal Control Element, receive with described terminal wireless with described user interface section respectively/sender and described terminal cluster receipts/sender link to each other, be used for according to the control command that described user interface section receives control described terminal wireless receipts/sender and described terminal cluster receipts/sender be tuned to described first be scheduled to frequency and described second and be scheduled to frequency;
The terminal antenna unit links to each other with described terminal cluster receipts/sender with described terminal wireless receipts/sender respectively, is used for the transmitting/receiving wireless signal.
13, terminal according to claim 12 is characterized in that, described user interface section comprises:
Keyboard is used to control described terminal and initiates common mobile communication business;
The PTT button is used to control described terminal and initiates group service.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510071914 CN1870782A (en) | 2005-05-23 | 2005-05-23 | Method and equipment for supporting trunking service by TD-SCDMA system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200510071914 CN1870782A (en) | 2005-05-23 | 2005-05-23 | Method and equipment for supporting trunking service by TD-SCDMA system |
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| CN1870782A true CN1870782A (en) | 2006-11-29 |
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| CN 200510071914 Pending CN1870782A (en) | 2005-05-23 | 2005-05-23 | Method and equipment for supporting trunking service by TD-SCDMA system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860973A (en) * | 2010-06-30 | 2010-10-13 | 哈尔滨工业大学 | Broadband multimedia cluster architecture system based on TD-LTE (Time Division Long Term Evolution) |
| CN105025573A (en) * | 2014-04-21 | 2015-11-04 | 北京信威通信技术股份有限公司 | LTE network trunking service paging method and system |
| WO2017118062A1 (en) * | 2016-01-04 | 2017-07-13 | 中兴通讯股份有限公司 | Uplink and downlink data processing method and corresponding apparatus |
| WO2018058495A1 (en) * | 2016-09-30 | 2018-04-05 | 海能达通信股份有限公司 | Energy-saving method for terminal, terminal device and narrowband base station |
| CN113490204A (en) * | 2021-08-10 | 2021-10-08 | 哈尔滨海能达科技有限公司 | Data transmission method, wireless ad hoc network forwarding device, terminal and storage medium |
| CN116054937A (en) * | 2023-03-31 | 2023-05-02 | 中国电子科技集团公司第五十四研究所 | Dual-frenquency point common aperture laser communication system |
-
2005
- 2005-05-23 CN CN 200510071914 patent/CN1870782A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860973A (en) * | 2010-06-30 | 2010-10-13 | 哈尔滨工业大学 | Broadband multimedia cluster architecture system based on TD-LTE (Time Division Long Term Evolution) |
| CN105025573A (en) * | 2014-04-21 | 2015-11-04 | 北京信威通信技术股份有限公司 | LTE network trunking service paging method and system |
| CN105025573B (en) * | 2014-04-21 | 2018-12-04 | 北京信威通信技术股份有限公司 | The cluster service paging method and system of LTE network |
| WO2017118062A1 (en) * | 2016-01-04 | 2017-07-13 | 中兴通讯股份有限公司 | Uplink and downlink data processing method and corresponding apparatus |
| WO2018058495A1 (en) * | 2016-09-30 | 2018-04-05 | 海能达通信股份有限公司 | Energy-saving method for terminal, terminal device and narrowband base station |
| CN113490204A (en) * | 2021-08-10 | 2021-10-08 | 哈尔滨海能达科技有限公司 | Data transmission method, wireless ad hoc network forwarding device, terminal and storage medium |
| CN116054937A (en) * | 2023-03-31 | 2023-05-02 | 中国电子科技集团公司第五十四研究所 | Dual-frenquency point common aperture laser communication system |
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