CN101986743A - Method for solving flow telephone traffic problem in wireless communication - Google Patents

Abstract

The invention discloses a method for solving a flow telephone traffic problem in wireless communication. The method comprises the following steps of: monitoring the percent of call lost, the dropped call rate, delay time and other information of each section in a cell coverage area to determine the section with overloaded telephone traffic; temporarily transferring frequency and transceiving equipment from a neighbor section according to the frequency using condition of a same-frequency base station nearby; and returning the temporarily transferred frequency and tranceiving equipment to the original section to keep working if the telephone traffic of the section returns to a preset range, and keeping the temporarily transfer if the telephone traffic of the section does not return to the preset range. The invention provides a dynamic telephone traffic processing mechanism, and the transceiving processing equipment and spectrum resources are distributed to each required section according to requirements so as to improve the communication quality of a communication network. When the percent of call lost, the dropped call rate or the delay time of a certain section in the base station is higher than the preset value, the base station dynamically transfers the frequency and transceiving equipment from other sections to relieve the overload pressure of the overload section.

Description

Mobile telephone traffic way to solve the problem in a kind of radio communication

Technical field

The present invention relates to a kind of wireless communication technology, mobile telephone traffic way to solve the problem in particularly a kind of radio communication.

Background technology

Frequency band in the existing base station and transceiver equipment all fixed configurations in each sector, it is the scope that antenna covers, each sector all has a mixer that the signalling device of this sector is combined to be connected to transmitting antenna, simultaneously each sector also has a splitter to be used for that received signal is diverted to each receiver to receive respectively, and the transceiver equipment of each sector does not exert an influence to the equipment of other sector.

Telephone traffic in the radio communication has very big flowability and randomness, telephone traffic in a certain region may increase or die-off suddenly, the method of this fixing dividing frequency and transceiver equipment is when the telephone traffic when a certain region increases above this sector equipment disposal ability suddenly, and the base station will in paralyzed stately cause can't proper communication.For example, the telephone traffic of big assembly or school can surpass the bearing capacity of sector, and big assembly has sudden in time and the duration is not very long, so promptly transfers communication truck and just can improve the telephone traffic regional communication carrier ability of rally of uprushing; School one class place then since classroom and dormitory not in same place and densely populated, so have characteristics such as telephone traffic height, periodically strong and longer duration, this phenomenon is at each school's ubiquity, the calling communication car is not the best approach of dealing with problems, and flexibly transfers system frequency resource and transceiver equipment can effectively overcome the above problems according to the variation of telephone traffic.

Summary of the invention

For solving the problems referred to above that prior art exists, the present invention will design mobile telephone traffic way to solve the problem in the radio communication that a kind of cutting off rate is low, the percent of call lost is little and time of delay is short.

To achieve these goals, technical scheme of the present invention is as follows: mobile telephone traffic way to solve the problem in a kind of radio communication may further comprise the steps:

After A, the system start-up, at first monitor the information such as the percent of call lost, cutting off rate and time of delay of each sector in the cell coverage area, the sector that the telephone traffic overload is confirmed in the back is calculated in the telephone traffic variation of each sector;

B, according to neighbouring with the frequency operating position of base station frequently, temporarily transfer frequency and transceiver equipment to the sector of closing on;

C, judge whether need to continue to temporarily transfer: if this sector telephone traffic is got back in the preset value scope, then will temporarily transfer frequency and transceiver equipment and recall to former sector and work on, otherwise, return step B.

The preset value of the sector of telephone traffic of the present invention overload is: the percent of call lost greater than 5%, cutting off rate greater than 0.40% or time of delay greater than 300ms.

Compared with prior art, the present invention has following beneficial effect:

1, the present invention proposes a kind of dynamic traffic treatment mechanism, and distribution according to need transceiver treatment facility and frequency spectrum resource arrive each required sector to improve the communication quality of communication network.The variation of following the tracks of telephone traffic is the theoretical core of this method, and it is a foundation of calling transceiver equipment and frequency resource.The percent of call lost, cutting off rate and time of delay are to follow the tracks of several key elements that telephone traffic changes, and the present invention is the telephone traffic situation of change that leading indicator is come different sectors in the tracking base stations with these three key elements.When cutting off rate, the percent of call lost or the time of delay of a certain sector in the base station are higher than preset value, the base station will dynamically be called in frequency and transceiver equipment from other sector to alleviate the overburden pressure of overload sector.

2, the present invention changes according to telephone traffic and calls other sector frequency resource of base station and can upset the frequency partition mode of base station in the past and then cause co-channel interference between the base station, temporarily transfers rule so the present invention proposes a cover frequency.Change greatly, need to carry out between the sector base station that frequency and transceiver equipment temporarily transfer for telephone traffic and call situation with its 6 base station frequencies around need sharing it with frequency range, when temporarily transferring other sector frequency with the frequency operating position of base station frequently with regard to not can with the mutual interference mutually of Lin Qu base station.

Description of drawings

Fig. 1 is the frequency spectrum configuration schematic diagram of cellular system in the radio communication.

Fig. 2 is a workflow diagram of the present invention.

In Fig. 1: the hexagon of thick frame is represented cellular cell, and all there are 3 sectors each sub-district, and f1 represents 9 different frequency ranges to f9, the digitized representation base station number in the middle of each sub-district.

Embodiment

Below in conjunction with accompanying drawing the present invention is described further.Figure 1 shows that the spectrum allocation may schematic diagram of cellular system, with No. 1 base station is the examination object, its shared frequency range is f1, f2 and f3, the base station that takies similar frequency bands with it is 8,10,12,14,16 and No. 18 six base stations, can be to not producing big interference with the frequency base station according to the configuration of this kind frequency spectrum.If the frequency of temporarily transferring f1 or f2 sector owing to the overload of the telephone traffic of f3 sector, No. 1 base station will inevitably increase with the interference of base station frequently, so when calling other sector frequency, should consider selectively to temporarily transfer frequency with the frequency operating position of frequency base station.For example, when increasing above the sector bearing capacity suddenly, the f3 sector telephone traffic of No. 1 base station need temporarily transfer the frequency and the transceiver equipment of f1 and f2 sector, before temporarily transferring frequency, to examine or check the frequency operating position of f1 and f2 sector in 14,16 and No. 18 base stations in the coverage direction scope of f3 sector, avoid because of using identical frequency to cause interference.

As shown in Figure 2, at first monitor the information such as the percent of call lost, cutting off rate and time of delay of each sector in the cell coverage area after the system start-up, telephone traffic to each sector changes the sector of calculating the overload of back affirmation telephone traffic, the preset value of the percent of call lost less than 5%, the preset value of cutting off rate less than 0.40%, the preset value of time of delay is less than 300ms, if these three reference datas have one to surpass preset value then judge this sector telephone traffic overload.If A is the telephone traffic that access success is connected phone, is called for short and finishes telephone traffic, C ₀Be the number of times that access success is conversed in a hour, t ₀Be the time of the average busy channel of each conversation, then finish telephone traffic and be:

A′＝C ₀×t ₀(1)

So percent of call lost B is:

$B=\frac{A-A^{\′}}{A}\×100\%---\left(2\right)$

In the formula, A is total telephone traffic, and A-A is a lost traffic.

After determining telephone traffic overload sector, near the frequency operating position of examination with the frequency base station, temporarily transfer frequency and transceiver equipment to the sector of closing on, judging whether behind the end of conversation needs to continue to temporarily transfer, if this sector telephone traffic is got back in the normal range (NR), that is: get back to cutting off rate, the percent of call lost or time of delay in the preset value scope, then will temporarily transfer frequency and transceiver equipment and recall to former sector and work on, otherwise will continue to temporarily transfer.Not only can solve in this way because a series of problems such as call drop that the telephone traffic variation brings also can be to not causing unnecessary interference with the frequency base station.

Claims (2)

1. mobile telephone traffic way to solve the problem in the radio communication is characterized in that: may further comprise the steps:

After A, the system start-up, at first monitor the information such as the percent of call lost, cutting off rate and time of delay of each sector in the cell coverage area, the sector that the telephone traffic overload is confirmed in the back is calculated in the telephone traffic variation of each sector;

B, according to neighbouring with the frequency operating position of base station frequently, temporarily transfer frequency and transceiver equipment to the sector of closing on;

C, judge whether need to continue to temporarily transfer: if this sector telephone traffic is got back in the preset value scope, then will temporarily transfer frequency and transceiver equipment and recall to former sector and work on, otherwise, return step B.

2. mobile telephone traffic way to solve the problem in a kind of radio communication according to claim 1 is characterized in that: the preset value of the sector of described telephone traffic overload is: the percent of call lost greater than 5%, cutting off rate greater than 0.40% or time of delay greater than 300ms.

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