CN101185351A - Method for controlling macro diversity mode based on the user's QoS requirement difference - Google Patents

Method for controlling macro diversity mode based on the user's QoS requirement difference Download PDF

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CN101185351A
CN101185351A CNA2005800499396A CN200580049939A CN101185351A CN 101185351 A CN101185351 A CN 101185351A CN A2005800499396 A CNA2005800499396 A CN A2005800499396A CN 200580049939 A CN200580049939 A CN 200580049939A CN 101185351 A CN101185351 A CN 101185351A
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CN101185351B (en
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史莉荣
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity

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Abstract

A method for controlling macro diversity mode based on the user's QoS requirement difference, the method is applicable to CDMA system, for real time service, it mainly based on the pilot strength measured by MS, and for the non-real time service, it mainly based on the pilot strength measured by MS and the downlink special transmitting power measured by BS. The method for controlling macro diversity according to the present invention is simply and adopts different controlling method for the service whose QoS is different.

Description

The control method of macro diversity mode based on user's QoS requirement difference
The control method technical field of macro diversity mode based on user's QoS requirement difference
The present invention relates to the control method of macro diversity mode in CDMA (Code Division Multiple Access) (hereinafter referred to as CDMA) system, the control method of the macro diversity mode more particularly to based on QoS of customer (Quality of ServiceX hereinafter referred to as Qos) demand difference.Background technology
GSM experienced from frequency division, when assign to three epoch of code division, what is used in preceding two Generation Mobile Communication System is all direct-cut operation, and soft hand-off is employed in 3-G (Generation Three mobile communication system), i.e. cdma system, and macro-diversity is also widely used.
The concept of diversity can be as follows with simplicity of explanation：If the signal in a radio propagation path experienced deep fading, and stronger signal may be still included in another relatively independent path, therefore two or more signals can be selected in multipath signal, advantage of this is that it is all improved for the instantaneous signal-to-noise ratio and average signal-to-noise ratio of receiving terminal, and it can generally improve 20dB to 30dB.
Wherein, decline has two kinds, i.e. large scale decline and multipath fading.When the displacement of mobile station only has several wavelength, the characteristic of multipath fading is characterized by the depth and speed of amplitude fluctuation.These declines are as caused by the complicated reflection of object near mobile station.Multipath fading normally results in Rayleigh (Rayleigh) the decline distribution of small distance range signals intensity.In order to prevent deep fading, fast-changing signal can be handled using micro diversity technology. Large scale decline is as caused by shadow region caused by surrounding environment landform and geographical difference.In overabundant yin shadow zone, the signal intensity that mobile station is received may be less than intensity when propagating in free space.Mobile station can inherently improve the signal to noise ratio on forward link by selecting a base station signaled not in shadow region.Farther out, thus this is referred to as macro-diversity for the separation of the base station of the offer business utilized due to mobile station.
Macro-diversity is equally useful for base station receiver, by using the antenna for base station spatially fully separated, and base station can select to receive signal most strong antenna, so as to improve the signal quality of reverse link.
In a cdma system for the operation of macro-diversity, wireless device finds the pilot signal of the base station on candidate list, and the candidate list is not currently served in the wireless device.First, the intensity of wireless device measurement pilot signals, for example represented using the received signal strength indicator symbol of pilot signal, when wireless device detects the pilot tone of sufficient intensity, wherein the pilot tone is related to the base station for not being assigned to the wireless device, and the pilot tone message comprising pilot signal measurement result is provided to base station controller；Using the pilot signal measurement result, base station controller is determined the traffic channel assignments from another base station to the wireless device.If wireless device is allocated the Traffic Channel from more than one base station, the wireless device is considered to be at macro diversity status.Within geographic coverage, when wireless device is moved between cell, the calling from a base station is exchanged to another base station by base station controller in real time, and this is referred to as handover.All base stations for being connected to given wireless device define the activity group of the wireless device, and control the more New function of the activity group, estimate and update the activity group based on Pilot Strength Measurement, in a wireless device, detected by measurement process and measured most strong pilot tone.Pilot strength value is concentrated in pilot measurement reports, and this report is sent to base station controller afterwards；When When the more New function of activity group is called, the base station for receiving most strong and most weak pilot frequency intensity in activity group is identified, if the difference between the most strong and most weak pilot frequency intensity is more than the value needed for system（It is referred to as movable group window in context）, then most weak base station will be removed from the activity group；If the pilot frequency intensity that base station is received activity group threshold value on window within, as long as no beyond activity group size, then the base station be added in the movable group window；If the size of activity group is filled, and if corresponding pilot signal strength is higher than most weak base station, then the most weak base station in activity group will be substituted by new base station.
CDMA systems improve the performance or quality of signal reception using macro-diversity, and be related to for the macro-diversity concept in cdma system from the two or more of two or more base stations at the same link, while wireless device and cell receiver use multiple parallel correlators.Utilize the receiver of parallel correlator, it is allowed to which the arrival in each path is independently tracked, and the signal sum that they are received is demodulated by user.When having decline on each reach, decline is independent, based on the adjustable relatively reliable of signal sum.For the user under situation of movement, have considerable cell and use macro-diversity, during macro-diversity, because user is connected by multilink with base station, then multiple equipment/resource of cellular basestation can be used.And after CDMA systems are designed, the element number of transceiver is just fixed, downgoing channelized codes are also limited simultaneously, with the increase of user, user under macro-diversity will largely consume hardware resource and Radio Resource, therefore macro diversity mode needs to be effectively controlled.The content of the invention
In view of above-mentioned, it is an object of the invention to provide the control method of the macro diversity mode based on user's Qos demand differences suitable for cdma system. The control method of macro diversity mode of the present invention based on user's Qos demand differences, is the dynamic adjusting method that thresholding is triggered to macro-diversity, wherein above-mentioned macro-diversity is triggered, thresholding enters to trigger thresholding including macro-diversity and macro-diversity goes to trigger thresholding.In addition, the dynamic adjustment of macro-diversity triggering thresholding of the present invention uses different methods for the real time business and non-real-time service of cdma system.
The pilot frequency intensity of moving table measuring is based primarily upon for real time business, if the signal that mobile station is received is very well, up-regulation macro-diversity triggering thresholding, at the time of delaying in macro diversity mode, to save Radio Resource；If the signal that mobile station is received is very poor, macro-diversity triggering thresholding is lowered, mobile station is in macro diversity mode in advance as far as possible, switches in advance, it is to avoid call drop.
The pilot frequency intensity of moving table measuring and the downlink dedicated transmission power of base station measurement are based primarily upon for non-real-time service.The thought of pilot frequency intensity based on moving table measuring is：If the signal that mobile station is received is very well, up-regulation macro-diversity triggering thresholding；If the signal that mobile station is received is very poor, and will also meet downlink dedicated transmission power less than power threshold, current service transmission rate less than rate threshold value simultaneously, then macro-diversity triggering thresholding is lowered.The thought of downlink dedicated transmission power based on base station measurement is：If downlink dedicated transmission power is higher, and current service transmission rate is more than or equal to rate threshold value, then raises macro-diversity thresholding, avoids high-speed non-real-time service to carry out soft handover as far as possible.
To achieve the above object, a kind of control method of macro diversity mode based on user's Qos demand differences of the present invention, suitable for cdma system, it is characterised in that the macro diversity mode control method of the pilot frequency intensity based on moving table measuring used for real time business comprises the following steps：
Step 101:Radio network controller (Radio Network Controller) is (hereinafter referred to as RNC) preset macro-diversity and enter to trigger thresholding ΓαίΛ/, macro-diversity goes to trigger thresholding Γ, the lower and upper limit and adjusting step of thresholding adjustment, wherein to prevent the table tennis of cell in movable Groups List from adding and deleting, it is necessary to assure the upper limit of above-mentioned thresholding adjustment _ >=above-mentioned macro-diversity enters to trigger thresholding TaddThe above-mentioned macro-diversities of ＞ remove triggering thresholding TdmpThe lower limit of >=above-mentioned thresholding adjustment
Step 102:The activation pilot strength value that above-mentioned RNC reports mobile station., triggering thresholding T is removed with above-mentioned macro-diversitydmpEnter to trigger thresholding T with above-mentioned macro-diversityaIt is compared, as the strong and weak standard of gauge signal, wherein above-mentioned macro-diversity enters to trigger thresholding 7^ and above-mentioned macro-diversity goes triggering thresholding to adjust simultaneously, specifically divides following two situations：
If above-mentioned activation pilot strength value Γρ,,., go to trigger thresholding Γ less than above-mentioned macro-diversity, illustrate that current signal quality is poor, then above-mentioned macro-diversity is entered to trigger thresholding and above-mentioned macro-diversity goes to trigger thresholding^ lowers adjusting step r；
If above-mentioned activation pilot strength value., enter to trigger thresholding Γ more than above-mentioned macro-diversityσ /ί/, illustrate current signal quality preferably, then by above-mentioned macro-diversity enter to trigger thresholding and above-mentioned macro-diversity go the triggering ^ of thresholding 7 all raise adjusting step Γ,φ。
To achieve the above object, the control method of another macro diversity mode based on user's Qos demand differences of the present invention, suitable for cdma system, it is characterised in that the macro diversity mode control method of the pilot frequency intensity based on moving table measuring used for non-real-time service comprises the following steps-step 201:RNC presets macro-diversity and enters to trigger thresholding 7^, and macro-diversity goes to trigger thresholding 7：^, the lower limit r of thresholding adjustmentminWith upper limit 7_, adjusting step Γ,φ, rate threshold ^ and power threshold 4, wherein to prevent the table tennis of cell in movable Groups List from adding and deleting, It must assure that upper limit 7_ >=above-mentioned macro-diversity of above-mentioned thresholding adjustment enters to trigger thresholding 7^>Above-mentioned macro-diversity goes to trigger the lower limit of thresholding T >=above-mentioned thresholding adjustment,；
Step 202:The activation pilot strength value 7 that above-mentioned RNC reports mobile station；,., go triggering thresholding T and above-mentioned macro-diversity to enter to trigger thresholding T with above-mentioned macro-diversityaMIt is compared, as the strong and weak standard of gauge signal, wherein above-mentioned macro-diversity enters to trigger thresholding 7 and above-mentioned macro-diversity goes triggering thresholding to adjust simultaneously, specifically divides following two situations：
If above-mentioned activation pilot strength value 2,., go to trigger thresholding Γ less than above-mentioned macro-diversity, illustrate that current signal quality is poor, while current service transmission rate is also met less than above-mentioned rate threshold R,hrAnd downlink dedicated transmission power ^ is less than above-mentioned power threshold P,hr, then above-mentioned macro-diversity is entered to trigger thresholding and above-mentioned macro-diversity removes triggering thresholding rm/;All lower adjusting step
If above-mentioned activation pilot strength value., enter to trigger thresholding 7^ more than above-mentioned macro-diversity, illustrate current signal quality preferably, then by above-mentioned macro-diversity enter to trigger thresholding and above-mentioned macro-diversity go triggering thresholding Γ all raise adjusting step Γ,φ。
To achieve the above object, the control method of another macro diversity mode based on user's Qos demand differences of the present invention, suitable for cdma system, it is characterised in that the macro diversity mode control method of the downlink dedicated transmission power based on base station measurement used for non-real-time service comprises the following steps：
Step 301:RNC presets macro-diversity and enters to trigger thresholding ΓΩίΑ/, macro-diversity go trigger thresholding 7^, thresholding adjustment lower and upper limit 7_, adjusting step 7:,p, rate threshold and power threshold, wherein to prevent the table tennis of cell in movable Groups List from adding and deleting, it is necessary to assure the upper limit of above-mentioned thresholding adjustment _ >=above-mentioned macro-diversity enters to trigger thresholding 7^>It is above-mentioned Macro-diversity goes to trigger the lower limit r of thresholding T >=above-mentioned thresholding adjustmentmm；
Step 302:The downlink dedicated transmission power that above-mentioned RNC reports base station is compared with above-mentioned power threshold 4, if above-mentioned downlink dedicated transmission power ^ is more than or equal to above-mentioned power threshold 4, and current service transmission rate, more than or equal to above-mentioned rate threshold Rthr, then above-mentioned macro-diversity is entered to trigger thresholding 7 and above-mentioned macro-diversity goes triggering thresholding Γ all to raise adjusting step Γ, wherein above-mentioned macro-diversity enters to trigger thresholding 7^ and above-mentioned macro-diversity goes triggering thresholding Γ to adjust simultaneously.
In actual applications, in order to prevent upper reconcile from lowering alternately, this method also includes setting counter or timer, if wherein setting counter, above-mentioned RNC just enters to trigger thresholding T only when continuously meeting above-mentioned trigger condition in number of times as defined in the counter to above-mentioned macro-diversity.ddTriggering thresholding T is gone to be raised or lowered with above-mentioned macro-diversity；If setting timer, started to since the timer after time-out, just enter to trigger thresholding 7 to above-mentioned macro-diversity when above-mentioned RNC only meets above-mentioned trigger condition always/(/Triggering thresholding Γ is gone to be raised or lowered with above-mentioned macro-diversity.
Wherein, if above-mentioned macro-diversity enters to trigger thresholding and refers to that above-mentioned mobile station monitors that the pilot frequency intensity of the cell in movable Groups List enters to trigger thresholding 7^ higher than the macro-diversity, the cell is added in above-mentioned movable Groups List；If above-mentioned macro-diversity goes triggering thresholding to refer to that above-mentioned mobile station monitors that the pilot frequency intensity of the cell in above-mentioned movable Groups List goes to trigger thresholding less than the macro-diversity, the cell is deleted from above-mentioned movable Groups List.
Above-mentioned macro-diversity enters to trigger thresholding and above-mentioned macro-diversity goes the initial setting up for triggering thresholding Γ is general to be determined by the network planning or emulation.
The lower limit r of above-mentioned thresholding adjustmentmmCan be by selecting permitting for pilot tone after synthesis with upper limit Γ Perhaps number is obtained by emulation or actual test.Wherein, if the lower limit 7 and upper limit 7_ of the adjustment of above-mentioned thresholding set too small, be necessarily easily caused it is excessive it is rear select pilot tone, influence the search of other pilot tone adjacent areas, easily cause pilot pollution；If the lower limit of above-mentioned thresholding adjustment.Set too high with upper limit 7_, when user equipment (User Equipment) (hereinafter referred to as UE) moves quickly into cell edge, the addition of strong pilot tone, easy call drop can be influenceed.
Above-mentioned adjusting step Γ,φIt is mainly relevant with the situation of MPS process and wireless fading channel, wherein the upper mediation downward that above-mentioned macro-diversity enters to trigger thresholding 7^ can use identical adjusting step Γ or different adjusting step Γ.Wherein, raising above-mentioned macro-diversity and entering to trigger thresholding can delay switching instant, should be careful, can be by adjusting step ΓίίφSet relatively small；Lower above-mentioned macro-diversity enter to trigger thresholding 7^ can the Pre-handoff moment, cell coverage area is smaller, the poor amplitude for wishing that thresholding is lowered of wireless fading channel is very fast, adjusting step Γ can be set relatively large.It is recommended that adjusting step Γ can be set to 0.1dBm 1.0dBm value, while can also set different values according to the difference of business.
Above-mentioned power threshold PlhrWith rate threshold RlhrCan dynamically it be adjusted according to the power resource and code resource of adjacent area in system operation.If the resource of adjacent area has very big surplus, if the resource that can suitably raise the power threshold and rate threshold adjacent area is less, the power threshold 4 and rate threshold can be suitably lowered,.Wherein power threshold can be arranged to the relative percentage of Radio Link maximum transmission power, for example, 80%;Rate threshold can initially be arranged to 64kbps or other values.
The control method of macro diversity mode of the present invention is simple, and takes different control methods for the different business of Qos.In the case where mobile station is in cell edge, receives poor signal, the triggering thresholding of dynamic adjustment macro diversity mode makes it be in macro diversity mode as early as possible, The opportunity that will be handed over shifts to an earlier date, it is to avoid call drop.Simultaneously for the higher non-real-time service of high speed, transmission power, the triggering thresholding of dynamic adjustment macro diversity mode, avoid the larger non-real-time service of resource loss to carry out soft handover as far as possible, Radio Resource has been effectively saved, while reducing the mortality of soft handover.And the method for the invention macro-diversity in adjustment enters to trigger thresholding and macro-diversity goes triggering thresholding to adjust simultaneously, it can so ensure that the two thresholdings keep certain difference, be conducive to avoiding the occurrence of soft handover and add the ping-pong gone with soft handover, the purpose of common guarantee adjustment simultaneously, such as raise guarantee hardly possible plus easily go, downward ensures that Yi Jianan is gone.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and coordinate Figure of description, it is described in detail below.Brief description of the drawings
Fig. 1 be two UE all in non-macro diversity status when schematic diagram.
Fig. 2 adjusts flow chart for the dynamic of the macro-diversity triggering thresholding of real time business of the present invention.
Fig. 3 triggers the flow chart of the dynamic adjusting method 1 of thresholding for the macro-diversity of non-real-time service of the present invention.
Fig. 4 triggers the flow chart of the dynamic adjusting method 2 of thresholding for the macro-diversity of non-real-time service of the present invention.Embodiment
The specific implementation to technical scheme is described in further detail below in conjunction with the accompanying drawings. Multiple business is there is in a cdma system, and such as having speech business, videophone, Streaming Media download, web page browsing, video request program, receiving and dispatching mail, file download, requirement of these business to time delay is different.According to sensitiveness of the business to time delay, business can be divided into two classes substantially：Real time business and non-real-time service.The characteristics of due to business itself, real time business to the subjective feeling of call drop clearly；And for non-real-time service, even if call drop, business can also be re-established automatically, the subjective feeling of user is not obvious, and non-real-time service is due to some paroxysmal features, data traffic is unstable, the flow being possible in cell edge is also very big, to keep its Qos, the power resource and code resource of consumption all can be higher, if under macro diversity mode, at least need twice of resource of consumption, if the load of adjacent area is higher, it is impossible to provide enough resources, soft handover will be easy to failure.For real time business, when mobile station is relatively low in the pilot frequency intensity that cell edge is received, it wants to that other strong signal cells are added into activation concentration earlier, i.e., as early as possible in macro diversity mode；And for non-real-time service, from the point of view of resource use, it can be made to be in macro diversity mode a bit a little later.
Fig. 1 be two UE all in non-macro diversity status when schematic diagram.As shown in Figure 1, wireless device 1 (hereinafter referred to as UE1) and wireless device 2 (hereinafter referred to as UE2) are respectively in cell l (Celll) and cell 2 (Cell2), all only have a wireless links to be connected respectively with base station 1 (hereinafter referred to as NodeBl) and base station 2 (hereinafter referred to as NodeB2) descending, they are all not on macro diversity mode, and are gradually moved to cell edge.NodeBl and NodeB2 belong to same RN (.
If UE1 uses real time business, and UE2 uses non-real-time service, due to the Qos demand differences of the two business, how to take different methods to carry out the control of macro diversity mode, as the problem to be solved in the present invention. The control method of macro diversity mode set forth in the present invention is carried out in R C.
The method flow diagram that Fig. 2 adjusts for the macro-diversity trigger gate restraint state of real time business of the present invention, it is based primarily upon the pilot frequency intensity of UE measurements.As shown in Fig. 2 it comprises the following steps：
Step 201:R C first carry out the initialization of parameter, including macro-diversity enters to trigger thresholding 7;Λ/, macro-diversity goes to trigger thresholding Γ, the lower limit r of thresholding adjustmentmmWith the setting of upper limit 7_ and adjusting step r parameters；
Step 202:UE carries out the measurement of pilot frequency intensity and reporting measurement reports；
Step 203:RNC judges activation pilot strength value Γρ,,., if triggering thresholding is removed less than above-mentioned macro-diversity if so, then performing step 204, otherwise performs step 205;
Step 204:RNC judges that above-mentioned macro-diversity goes triggering thresholding Γ to lower adjusting step 7;½pWhether it is more than or equal to the lower limit r that above-mentioned thresholding is adjusted afterwardsm,nIf so, then performing step 206, step 207 is otherwise performed;
Step 205:RNC judges above-mentioned activation pilot strength value 7;,,., whether enter to trigger thresholding ^ more than above-mentioned macro-diversityIf so, then performing step 208, step 207 is otherwise performed;
Step 206:RNC enters to trigger thresholding 7 by above-mentioned macro-diversity and above-mentioned macro-diversity removes triggering thresholding Γ)ρAdjusting step r is lowered respectively；
Step 207:RNC is not adjusted；
Step 208:RNC judges that above-mentioned macro-diversity enters to trigger thresholding up-regulation adjusting step 7tpWhether it is less than or equal to the upper limit Γ that above-mentioned thresholding is adjusted afterwardsIf so, then performing step 209, step 207 is otherwise performed;
Step 209:RNC enters to trigger thresholding 7^ by above-mentioned macro-diversity and above-mentioned macro-diversity goes to touch Hair thresholding Γ raises adjusting step 7 respectively;, .
A kind of flow chart for method that Fig. 3 adjusts for the macro-diversity trigger gate restraint state of non-real-time service of the present invention, it is mainly triggered by the UE pilot frequency intensities measured.As shown in figure 3, it comprises the following steps：
Step 301:R C first carry out the initialization of parameter, including macro-diversity enters to trigger thresholding Γαίω, macro-diversity go to trigger thresholding Γ, the lower and upper limit 7_ of thresholding adjustment, adjusting step T,ep, rate threshold R,hrAnd power threshold P,hrThe setting of parameter；
Step 302:UE carries out the measurement of pilot frequency intensity and reporting measurement reports, and base station carries out the measurement of downlink dedicated transmission power and reporting measurement reports；
Step 303:RNC judges whether activation pilot strength value Γ ^ remove triggering thresholding if so, then performing step 304 less than above-mentioned macro-diversity, otherwise performs step 308;
Step 304:R C judge current service transmission rate/whether be less than above-mentioned rate threshold and whether downlink dedicated transmission power is less than power thresholdfIf so, then performing step 305, step 307 is otherwise performed;
Step 305:RNC judges that above-mentioned macro-diversity goes triggering thresholding Γ to lower adjusting step 7φWhether it is more than or equal to the lower limit r that above-mentioned thresholding is adjusted afterwardsnIf so, then performing step 306, step 307 is otherwise performed;
Step 306:RNC enters to trigger thresholding 7^ by above-mentioned macro-diversity and above-mentioned macro-diversity goes to trigger thresholding 7mpAdjusting step Γ is lowered respectively；
Step 307:R C are not adjusted；
Step 308:R C judge whether above-mentioned activation pilot strength value enters to trigger thresholding ^ more than above-mentioned macro-diversityIf so, then performing step 309, step 307 is otherwise performed; Step 309:RNC judges that above-mentioned macro-diversity enters to trigger thresholding Γαώ/Raise adjusting step z;tepWhether it is less than or equal to the upper limit of above-mentioned thresholding adjustment if so, then performing step 310 afterwards, otherwise performs step 307;
Step 310:RNC enters to trigger thresholding 7 by above-mentioned macro-diversity and above-mentioned macro-diversity goes to trigger thresholding τ,ρRespectively up-regulation adjusting step Γ,φ。
The flow chart for another method that Fig. 4 adjusts for the macro-diversity trigger gate restraint state of non-real-time service, it is mainly triggered by the downlink dedicated transmission power of base station measurement.As shown in figure 4, it comprises the following steps：
Step 401:RNC first carries out the initialization of parameter, including macro-diversity enters to trigger thresholding 7^, macro-diversity and goes to trigger thresholding 7rap, thresholding adjustment lower limit τιηWith upper limit 7_, adjusting step Τ, rate threshold R,hrAnd power threshold P,hrThe setting of parameter；
Step 402:Base station carries out the measurement of downlink dedicated transmission power and reporting measurement reports；Step 403:RNC judges whether downlink dedicated transmission power is more than or equal to above-mentioned power thresholdIf so, then performing step 404, step 407 is otherwise performed;
Step 404:R C judge whether current service transmission rate is more than or equal to rate threshold if so, then performing step 405, otherwise perform step 407;
Step 405:RNC judges that above-mentioned macro-diversity enters to trigger thresholding up-regulation adjusting step 7φWhether it is less than or equal to the upper limit that above-mentioned thresholding is adjusted afterwardsIf so, then performing step 406, step 407 is otherwise performed;
Step 406:RNC enters to trigger thresholding 7^ by above-mentioned macro-diversity and above-mentioned macro-diversity goes to trigger thresholding 7)pRespectively up-regulation adjusting step Γ,φ；
Step 407:RNC is not adjusted. Disclosure sets forth the control method of the macro diversity mode based on user's Qos demand differences, include the dynamic adjustment of the macro-diversity triggering thresholding of downlink dedicated transmission power based on the UE pilot frequency intensities measured and base station measurement.
When the pilot frequency intensity of measurement is relatively low, real time business is higher due to the requirement to Qos, lowers macro-diversity triggering thresholding, it is in macro diversity mode as early as possible, the opportunity that will be handed over shifts to an earlier date, it is to avoid call drop；And the requirement to Qos of non-real-time service is relatively low, at the same meet relatively low, the current service transmission rate of downlink dedicated transmission power it is smaller when, lower macro-diversity triggering thresholding.When the pilot frequency intensity of measurement is higher can ensure current Qos, up-regulation macro-diversity triggering thresholding is delayed in the macro diversity mode moment, is conducive to saving adjacent area Radio Resource.
When moving to cell edge using the UE of non-real-time service, when the higher and current service transmission rate of downlink dedicated transmission power is larger, raise macro-diversity triggering thresholding, the larger non-real-time service of resource loss is avoided to carry out soft handover as far as possible, Radio Resource is effectively saved, while reducing the mortality of soft handover.
The operation principle of the present invention has been described in detail above, but this is only to facilitate the example for the visualization for understanding and lifting, is not construed as limiting the scope of the present invention.Equally, the description of technique according to the invention scheme and its preferred embodiment, can make various possible equivalent changes or replacement, and all these changes or replacement should all belong to the scope of the claims of the present invention.

Claims (1)

  1. Claim
    1st, the control method of the macro diversity mode based on user's QoS requirement difference, it is adaptable to code division multiple access system, it is characterised in that the macro diversity mode control method of the pilot frequency intensity based on moving table measuring used for real time business comprises the following steps：
    Step 101:Radio network controller, which presets macro-diversity, to be entered to trigger thresholding；, macro-diversity removes triggering thresholding Γρ, the lower and upper limit and adjusting step of thresholding adjustment, wherein upper limit 7_ >=above-mentioned macro-diversity of above-mentioned thresholding adjustment enters to trigger thresholding 7^>Above-mentioned macro-diversity goes to trigger the lower limit 7 of the ^ of thresholding 7 >=above-mentioned thresholding adjustmentιη ;
    Step 102:The activation pilot strength value Γ that above-mentioned radio network controller reports mobile stationρ,,β, go triggering thresholding Τ and above-mentioned macro-diversity to enter to trigger thresholding Τ with above-mentioned macro-diversityαIt is compared, wherein above-mentioned macro-diversity enters to trigger thresholding Τ.ΜTriggering thresholding Τ is gone to adjust simultaneously with above-mentioned macro-diversity：
    If above-mentioned activation pilot strength value,., go to trigger thresholding Τ less than above-mentioned macro-diversity, then above-mentioned macro-diversity entered to trigger thresholding 7^ and above-mentioned macro-diversity goes the triggering ^ of thresholding 7 all to lower adjusting step Γ "φ ;
    If above-mentioned activation pilot strength value enters to trigger thresholding Τ more than above-mentioned macro-diversityαΜ, then above-mentioned macro-diversity is entered to trigger thresholding ΓαΛ/Triggering thresholding Γ is gone all to raise adjusting step Γ with above-mentioned macro-diversity.
    1st, according to the method described in claim 1, it is characterised in that also including setting counter or timer, wherein
    If setting counter, above-mentioned radio network controller is only provided in the counter Number of times in just enter to trigger thresholding to above-mentioned macro-diversity when continuously meeting above-mentioned trigger condition and above-mentioned macro-diversity goes triggering thresholding Τ to be raised or lowered；
    If setting timer, started to since the timer after time-out, just enter to trigger thresholding Γ to above-mentioned macro-diversity when above-mentioned radio network controller only meets above-mentioned trigger condition alwaysαίΛ/The triggering ^ of thresholding 7 is gone to be raised or lowered with above-mentioned macro-diversity.
    3rd, method according to claim 2, it is characterised in that
    Above-mentioned macro-diversity enters to trigger thresholding rarfi/Refer to if above-mentioned mobile station monitors that the pilot frequency intensity of the cell in movable Groups List enters to trigger thresholding Γ higher than the macro-diversityαί/ί/, then the cell is added in above-mentioned movable Groups List；
    Above-mentioned macro-diversity goes to trigger thresholding 7.ρIf referring to that above-mentioned mobile station monitors that the pilot frequency intensity of the cell in above-mentioned movable Groups List goes to trigger thresholding less than the macro-diversity, the cell is deleted from above-mentioned movable Groups List.
    4th, method according to claim 2, it is characterised in that
    Above-mentioned macro-diversity enters to trigger thresholding and above-mentioned macro-diversity goes to trigger thresholding 7：^ initial setting up is determined by the network planning or emulation；
    The lower limit r of above-mentioned thresholding adjustmentm,nWith upper limit 7_ by selecting the permission number of pilot tone to be obtained by emulation or actual test after synthesis；
    Above-mentioned adjusting step Γ is relevant with the situation of MPS process and wireless fading channel, wherein the upper mediation that above-mentioned macro-diversity enters to trigger thresholding 7^ is lowered using identical adjusting step 7^ or different adjusting step Γ.
    5th, the control method of the macro diversity mode based on user's QoS requirement difference, it is adaptable to code division multiple access system, it is characterised in that for non-real-time service use based on moving table measuring The macro diversity mode control method of pilot frequency intensity comprise the following steps：
    Step 201:Radio network controller presets macro-diversity and enters to trigger thresholding ΓαΛ/, macro-diversity go trigger the ^ of thresholding 7, thresholding adjustment lower limit rm,nWith upper limit 7_, adjusting step Γ, rate threshold/^ and power threshold 4, wherein above-mentioned thresholding adjustment the above-mentioned macro-diversity of the upper limit enter to trigger thresholding ταΜ>Above-mentioned macro-diversity removes triggering thresholding τ>The lower limit of above-mentioned thresholding adjustment
    Τ min；,
    Step 202:The activation pilot strength value Γ that above-mentioned radio network controller reports mobile stationρ,,., go triggering thresholding Γ and above-mentioned macro-diversity to enter to trigger thresholding 7^ and be compared with above-mentioned macro-diversity, wherein above-mentioned macro-diversity enters to trigger thresholding 7^ and above-mentioned macro-diversity goes triggering thresholding Γ to adjust simultaneously：
    If above-mentioned activation pilot strength value., triggering thresholding Τ is removed less than above-mentioned macro-diversity→, while also meeting, current service transmission rate is less than above-mentioned rate threshold/^ and downlink dedicated transmission power is less than above-mentioned power threshold, then enters to trigger thresholding τ by above-mentioned macro-diversityαΛΙWith above-mentioned macro-diversity go triggering thresholding T all lower adjusting step T,tep；
    If above-mentioned activation pilot strength value enters to trigger thresholding more than above-mentioned macro-diversity
    Tadd, then by above-mentioned macro-diversity enter to trigger thresholding 7^ and above-mentioned macro-diversity go triggering thresholding Γ all raise adjusting step Γ,φ。
    6th, method according to claim 5, it is characterised in that also including setting counter or timer, wherein
    If setting counter, above-mentioned radio network controller just enters to trigger thresholding only when continuously meeting above-mentioned trigger condition in number of times as defined in the counter to above-mentioned macro-diversity；Triggering thresholding 7^ is gone to be raised or lowered with above-mentioned macro-diversity； If setting timer, started to since the timer after time-out, just enter to trigger thresholding T to above-mentioned macro-diversity when above-mentioned radio network controller only meets above-mentioned trigger condition alwaysaddTriggering thresholding T is gone to be raised or lowered with above-mentioned macro-diversity.
    7th, method according to claim 6, it is characterised in that
    If above-mentioned macro-diversity, which enters to trigger thresholding 7^, refers to that above-mentioned mobile station monitors that the pilot frequency intensity of the cell in movable Groups List enters to trigger thresholding ^ higher than the macro-diversity, the cell is added in above-mentioned movable Groups List；
    If above-mentioned macro-diversity goes triggering thresholding ^ to refer to that above-mentioned mobile station monitors that the pilot frequency intensity of the cell in above-mentioned movable Groups List goes to trigger thresholding ^ less than the macro-diversity, the cell is deleted from above-mentioned movable Groups List.
    8th, method according to claim 6, it is characterised in that
    Above-mentioned macro-diversity enters to trigger thresholding and above-mentioned macro-diversity goes the initial setting up for triggering thresholding T to be determined by the network planning or emulation；
    The lower and upper limit 7_ of above-mentioned thresholding adjustment is by selecting the permission number of pilot tone to be obtained by emulation or actual test after synthesis；
    Above-mentioned adjusting step Γ is relevant with the situation of MPS process and wireless fading channel, wherein above-mentioned macro-diversity enters to trigger thresholding ΓΰιωUpper mediation lower using identical adjusting step Γ, or different adjusting step 7：,^
    Above-mentioned power threshold PlhrWith rate threshold RlhrDynamically it is adjusted according to the power resource of adjacent area and code resource in system operation.
    9th, the control method of the macro diversity mode based on user's QoS requirement difference, it is adaptable to code division multiple access system, it is characterised in that for non-real-time service use based on base station measurement The macro diversity mode control method of downlink dedicated transmission power comprises the following steps：
    Step 301:Radio network controller presets macro-diversity and enters to trigger thresholding 7^, and macro-diversity goes to trigger the lower limit r of the thresholding of thresholding 7 adjustmentminWith upper limit rmax, adjusting step Γ, rate threshold R,hrAnd power threshold, wherein the upper limit r of above-mentioned thresholding adjustmentmax>=above-mentioned macro-diversity enters to trigger thresholding τ.>Above-mentioned macro-diversity goes to trigger the lower limit τ min of thresholding T >=above-mentioned thresholding adjustment；,
    Step 302:The downlink dedicated transmission power that above-mentioned radio network controller reports base station and above-mentioned power threshold PthrIt is compared, if above-mentioned downlink dedicated transmission power is more than or equal to above-mentioned power threshold 4, and current service transmission rate is more than or equal to above-mentioned rate threshold, above-mentioned macro-diversity then is entered to trigger thresholding 7^ and above-mentioned macro-diversity goes triggering thresholding all to raise adjusting step, wherein above-mentioned macro-diversity enters to trigger thresholding 7^ and above-mentioned macro-diversity goes triggering thresholding Γ to adjust simultaneously.
    10th, method according to claim 9, it is characterised in that also including setting counter or timer, wherein
    If setting counter, above-mentioned radio network controller just enters to trigger thresholding Γ only when continuously meeting above-mentioned trigger condition in number of times as defined in the counter to above-mentioned macro-diversityσώ/Triggering thresholding Γ is gone to be raised or lowered with above-mentioned macro-diversity；
    If setting timer, started to since the timer after time-out, just enter to trigger thresholding 7^ to above-mentioned macro-diversity when above-mentioned radio network controller only meets above-mentioned trigger condition always and above-mentioned macro-diversity goes the triggering ^ of thresholding 7 to be raised or lowered.
    11, method according to claim 10, it is characterised in that
    Above-mentioned macro-diversity enters to trigger thresholding 7^ and referred to if above-mentioned mobile station monitors activity group The pilot frequency intensity of cell in list enters to trigger thresholding 7^ higher than the macro-diversity, then the cell is added in above-mentioned movable Groups List；
    If above-mentioned macro-diversity goes triggering thresholding Γ to refer to that above-mentioned mobile station monitors that the pilot frequency intensity of the cell in above-mentioned movable Groups List goes to trigger thresholding less than the macro-diversity, the cell is deleted from above-mentioned movable Groups List.
    12nd, method according to claim 10, it is characterised in that
    Above-mentioned macro-diversity enters to trigger thresholding ΤαThe initial setting up for triggering thresholding Τ is gone to be determined by the network planning or emulation with above-mentioned macro-diversity；
    The lower limit r of above-mentioned thresholding adjustmentm,nWith upper limit 7_ by selecting the permission number of pilot tone to be obtained by emulation or actual test after synthesis；
    Above-mentioned adjusting step Γ,φIt is relevant with the situation of MPS process and wireless fading channel, wherein the upper mediation that above-mentioned macro-diversity enters to trigger thresholding is lowered using identical adjusting steppOr different adjusting steps
    Above-mentioned power threshold and rate threshold/^ are dynamically adjusted in system operation according to the power resource of adjacent area and code resource.
CN2005800499396A 2005-10-18 2005-10-18 Method for controlling macro diversity mode based on the user's QoS requirement difference Expired - Fee Related CN101185351B (en)

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WO2010045791A1 (en) * 2008-10-22 2010-04-29 中兴通讯股份有限公司 Method and device for selecting the resource processing manner

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CN101364825B (en) 2007-08-10 2012-05-30 华为技术有限公司 Macrodiversity incorporating method, system, base station and user equipment

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FR2809252B1 (en) * 2000-05-17 2003-10-03 Cit Alcatel METHOD FOR ADJUSTING TRANSMIT POWER BY BASE STATIONS TRANSMITTING IN MACRO-DIVERSITY
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US7623477B2 (en) * 2002-05-06 2009-11-24 Qualcomm, Incorporated Methods and apparatus for downlink macro-diversity in cellular networks

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WO2010045791A1 (en) * 2008-10-22 2010-04-29 中兴通讯股份有限公司 Method and device for selecting the resource processing manner
CN101730128B (en) * 2008-10-22 2012-10-10 中兴通讯股份有限公司 Method and device for selecting resource processing mode
US9060332B2 (en) 2008-10-22 2015-06-16 Zte Corporation Method and device for selecting the resource processing manner

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