Dynamic channel allocation method for comprehensive services and transmission characteristics of CDMA (Code Division Multiple Access) cluster system
A technology of dynamic channel allocation and trunking system, which can be used in broadcast service allocation, wireless communication, electrical components, etc., and can solve problems such as time-consuming
Inactive Publication Date: 2011-11-23
南京洲腾健康科技有限公司
View PDF2 Cites 9 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The improvement of this algorithm and the calibration of parameters are also a process of continuous optimization and a relatively time-consuming process.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0074] 1. TD-SCDMA trunking system business type:
[0075] The application of cluster system business can be classified into three categories: broadcast application, transaction processing application and interactive application. Broadcast applications include general messaging, announcements and advertisements. In broadcast applications, messages are only delivered to a limited geographic area without acknowledgment. Messages can be resent several times over a period of time to increase reliability of reception. A transaction processing application usually consists of two messages, one is to request an operation, and the other is to confirm whether the operation is successful, and the two messages complete an information exchange. Some transactions may involve multiple exchanges of information, such as credit card authentication, paging, voicemail notification, email notification, and email delivery. Interactive applications require multiple message exchanges between the m...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a dynamic channel allocation method for comprehensive services and transmission characteristics of a CDMA (Code Division Multiple Access) cluster system, in particular to a grading dynamic channel allocation method for a TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) cluster system which is used for allocating resources according to the factors, such as channel state, service type, user priority, and the like in a digital cluster mobile communication system. According to the dynamic channel allocation method comprises, firstly, the services of the TD-SCDMA cluster system are classified and defined as follows: A. interactive mode and B. telemetering remote-control mode; and secondly, the related DCA (Dynamic Channel Allocation) of the TD-SCDMA cluster system comprises two basic processes, namely slow DCA process and quick DCA process, wherein the slow DCA process is used for allocating resources to the clusters by defining switching points of different application service types according to the application types of the TD-SCDMA cluster system; the slow DCA process is used for uplink resource allocation of the clusters; the quick DCA process is used for allocating physical channels to bearing services by dividing data, preserving time slots and defining changeable boundaries according to the service characteristics, the channel transmission characteristics and the service quality demands of cluster users of the TD-SCDMA cluster system; and the quick DCA process is used for downlink resource allocation of the cluster user.
Description
technical field [0001] Trunking communication uses PTT signaling to preempt the call right, and at the same time, the base station allocates uplink shared channels and downlink shared channels for this call, and dynamic allocation of resources can obtain efficient resource occupation under limited system resources. The present invention generally relates to a TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) code-division multiple access (TD-SCDMA) technology that allocates resources according to factors such as channel status, service type, and user priority in a digital trunking mobile communication system. ) Classified dynamic channel allocation algorithm for trunking systems. Background technique [0002] In the "Digital Trunking Mobile Communication System System", China has determined that the frequency band used by digital trunking mobile communication is 800MHz. The uplink and downlink are 806MHz-821MHz and 851MHz-866MHz respectively, a total of 15M...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/10H04W72/04
Inventor 孙君朱洪波杨龙祥邵世祥
Owner 南京洲腾健康科技有限公司