CN1642335A - Mixed wireless resource management method for mobile communication system - Google Patents
Mixed wireless resource management method for mobile communication system Download PDFInfo
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- CN1642335A CN1642335A CN 200510037617 CN200510037617A CN1642335A CN 1642335 A CN1642335 A CN 1642335A CN 200510037617 CN200510037617 CN 200510037617 CN 200510037617 A CN200510037617 A CN 200510037617A CN 1642335 A CN1642335 A CN 1642335A
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Abstract
The invention is a mixed solution to wireless resources management and its implementing method, i.e. a solution to manage wireless resources (such as frequency, time gap, code channel, wireless transmission power, etc) and its implementing method, which synthetically uses related techniques of wireless resources management (namely power control, channel allocation, control technique, calling admittance control, self-adapting link, etc) in mobile communication system, according to transmission requirements of various services and estimated result of wireless channel, periodically updating system parameters by a wireless resources management and control device to allocate the wireless resources in the mobile communication system, thus more flexibly and reasonably using the wireless resources and assuring requirements for transmission quality of service (QoS) and increasing system capacity.
Description
Technical field
The present invention is a kind of radio resource management method that is applied in the mobile communication system, belongs to mobile communication system transmission technology research field.
Background technology
Mobile communication develops rapidly in the world, and data service will replace the main business that voice service becomes mobile communication, and along with the developing rapidly of internet, people are more and more higher to the rate requirement of mobile data services.But it is more and more nervous to can be used for the mobile communication frequency spectrum resource, and because technology and consideration economically, the bandwidth of mobile communication system can not unrestrictedly increase.This just requires mobile communication system can support high-speed data service efficiently.
The basic point of departure of RRM be the network traffic skewness, the characteristic of channel is weak because of channel and the situation of interference fluctuations under, manage flexible allocation and in time adjust the available resources of wireless network.By mobile communication system being analyzed and being discovered, exist the conflict of interest between Virtual network operator and the mobile subscriber.The mobile subscriber wishes to obtain best service with minimum cost, that is to reduce transmitted power and to improve service quality; Virtual network operator is then satisfying under the QoS of customer condition, improves power system capacity or business throughput, minimizing base-station transmitting-power.The RRM strategy can be divided into centralized and distributed two classes, the customer-centric of centralized radio resource management strategy, and its target is the interests of maximization unique user, for example minimum user transmitting power and probability of interference.The distributed radio resource management strategy is the center with the network, and its target then is the group efficiency optimization that makes all users, for example maximized system capacity and throughput etc.Traditional radio resource management method uses various radio resource management techniques respectively, for the optimal design of wireless network is brought inconvenience, in order to satisfy the business such as multimedia of mobile communication system transmission, and make full use of the air interface resource of mobile communication system, must research adopt rationally, radio resource management scenarios efficiently, and combined optimization uses the radio resource management scenarios of various radio resource management techniques to become current development trend.
Summary of the invention
Technical problem: the purpose of this invention is to provide and a kind ofly can improve the mobile communication system resource utilization, improve system transmissions efficient and quality, adapt to the mixed wireless resource management method for mobile communication system of mobile communication system development need.
Technical scheme: mixed wireless resource Managed Solution of the present invention is: radio resource management methods such as power control techniques, method for channel allocation, call admission control method, switching controls technology, dispatching technique and adaptive link technology are managed in same RRM control device, according to miscellaneous service transmission demand and radio channel estimation result, adopt the method that is updated periodically system parameters to use each radio resource management techniques that frequency, time slot, code channel and antenna transmission power Radio Resource are allocated by the RRM control device.Towards improving the system parameters that power system capacity is updated periodically power control, channel allocation, Admission Control, switching controls, scheduling and adaptive link radio resource management techniques, when realizing, adopt a RRM control device, by each radio resource management techniques Radio Resources such as frequency, time slot, code channel and antenna transmission power are allocated according to professional quality of service requirement and channel status estimated result.
The implementation method of mixed wireless resource Managed Solution, the maximization of system-oriented capacity is managed concentratedly and is controlled various technology, and its specific implementation comprises following three steps:
The first step, for the base station in the mobile communications network and mobile subscriber are provided with corresponding aims of systems parameter, i.e. maximum transmission power, echo signal interference-to-noise ratio, the error rate and throughput;
In second step, at each special time of system operation in the cycle, system is according to the aims of systems parameter collection base station of setting and in running order mobile subscriber current transmitting power, received signal interference-to-noise ratio and the error rate, the performance parameter of system mode;
The 3rd step, wireless resource management apparatus is utilized in second step and is collected the parameter that obtains, and respectively the system parameters of radio resource management techniques such as Admission Control, channel allocation, scheduling controlling, switching controls, power control and adaptive link is carried out iteration and renewal according to professional quality of service requirement and channel status estimated result.Beneficial effect: the management of mobile communication system mixed wireless resource and its implementation that the present invention proposes, its basic characteristics are as follows:
(1) parameter of RRM is rationally adjusted, and according to the unified configuration of system mode, thereby improve wireless resource utility efficiency, increase power system capacity.
(2) adopt a RRM control device, only need on the existing system basis, to carry out suitable improvement and just can realize that implementation complexity is not high.
The present invention can be used for any mobile communication system.
The present invention mainly considers how to improve system's air interface resource in mobile communication system, improve system transmissions efficient, improve systematic function, the system that makes can support high-speed data service and different qos requirements more efficiently.
Description of drawings
Fig. 1 is the implementation method schematic diagram of mixed wireless resource Managed Solution.It comprises business demand module, RRM control device, channel estimation module, switching controls module, Admission Control module, dispatching technique module, channel assignment module, power control module, adaptive link module.
Embodiment
The present invention proposes a kind of mixed wireless resource Managed Solution, its basic ideas are: take all factors into consideration the realization of various radio resource management techniques,, concentrate each RRM parameter is periodically disposed according to business demand and channel estimation results by the RRM control device.
Fig. 1 as can be seen, in the realization, the RRM control device is periodically collected the operating state of channel information, business demand information and radio resource management techniques, adjusts the running status or the parameter of each technology in a kind of mode of mixing.The function representation formula of power system capacity and each running status or parameter is as follows:
Suppose cell mobile communication systems M sub-district altogether, every community user number is L, and user, power system capacity can be expressed as:
ρ
Ho_block, ρ
Call_block, T
Throughput, P
ChAnd P
cBe respectively handover blocking probability, probability of call blocking, throughput, available channel and every sub-district through-put power altogether.Each system parameters that the RRM control device carries out the mixed wireless resource management according to these parameters is determined.
The implement device of mixed wireless resource management mainly comprises several modules such as business demand module, RRM control device, channel estimation module, switching controls module, Admission Control module, dispatching technique module, channel assignment module, power control module, adaptive link module.Control device capturing service demand data, channel evaluation data and each technology modules status data, and then concentrate each technology modules suitable parameters of decision, and return to each technology modules.Therefore in specific implementation, comprise following three steps:
The first step, for the base station in the mobile communications network and mobile subscriber are provided with corresponding aims of systems parameter, i.e. maximum transmission power, echo signal interference-to-noise ratio, the error rate and throughput;
In second step, at each special time of system operation in the cycle, system is according to the aims of systems parameter collection base station of setting and in running order mobile subscriber current transmitting power, received signal interference-to-noise ratio and the error rate, the performance parameter of system mode;
The 3rd step, wireless resource management apparatus is utilized in second step and is collected the parameter that obtains, and respectively the system parameters of radio resource management techniques such as Admission Control, channel allocation, scheduling controlling, switching controls, power control and adaptive link is carried out iteration and renewal according to professional quality of service requirement and channel status estimated result.
Claims (3)
1, a kind of mixed wireless resource management method for mobile communication system, it is characterized in that power control techniques, method for channel allocation, call admission control method, the switching controls technology, radio resource management methods such as dispatching technique and adaptive link technology manage in same RRM control device, according to miscellaneous service transmission demand and radio channel estimation result, adopt the method that is updated periodically system parameters to use each radio resource management techniques to frequency by the RRM control device, time slot, code channel and antenna transmission power Radio Resource are allocated.
2, according to right 1 described mixed wireless resource management method for mobile communication system, it is characterized in that towards improving the system parameters that power system capacity is updated periodically power control, channel allocation, Admission Control, switching controls, scheduling and adaptive link radio resource management techniques, when realizing, adopt a RRM control device, by each radio resource management techniques Radio Resources such as frequency, time slot, code channel and antenna transmission power are allocated according to professional quality of service requirement and channel status estimated result.
3,, it is characterized in that the management method specific implementation comprises following three steps according to right 1 described mixed wireless resource management method for mobile communication system:
The first step, for the base station in the mobile communications network and mobile subscriber are provided with corresponding aims of systems parameter, i.e. maximum transmission power, echo signal interference-to-noise ratio, the error rate and throughput;
In second step, at each special time of system operation in the cycle, system is according to the aims of systems parameter collection base station of setting and in running order mobile subscriber current transmitting power, received signal interference-to-noise ratio and the error rate, the performance parameter of system mode;
The 3rd step, wireless resource management apparatus is utilized in second step and is collected the parameter that obtains, and respectively the system parameters of radio resource management techniques such as Admission Control, channel allocation, scheduling controlling, switching controls, power control and adaptive link is carried out iteration and renewal according to professional quality of service requirement and channel status estimated result.
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