CN101094170A - Network planning method for WCDMA to introduce access technique of up going packet in high speed - Google Patents

Abstract

The method comprises: a) calculating the cell coverage range; confirming the uplink network load, service destination needs and website limitation; b) the cell's service are respectively loaded by R99 DCH and HSUPA; estimating the network scale required by bearing the R99 DCH, and according to the preset noise uplift threshold, estimating the throughput and noise uplift capable of being supported by HSUPA in this condition; c)after adjustment, making the estimated network scale capable of satisfying t he service target demand and the uplink network load confirmed by step a.

Description

WCDMA introduces the network plan method of high speed uplink packet bag access technology

Technical field

The present invention relates to Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, hereinafter to be referred as WCDMA) system, relate in particular to and introduce high speed uplink packet bag access (High Speed Uplink Package Access, hereinafter to be referred as HSUPA, perhaps enhanced uplink technology) after the technology, a kind of network evaluation method in the network planning.

Background technology

The 3GPP consensus standard has experienced Release99, Release4, Release5, so that the evolution of higher protocol versions such as Release6 subsequently.Usually the traditional business with WCDMA is called the R99 business, and the Packet Service of streaming media service such as up CS12.2kbps speech business, CS64kbps video telephone, PS64kbps for example can be provided.HSUPA is the new function of introducing for the throughput that improves system for uplink packet data in 3GPP Release6, and purpose is for the user provides upstream packet business service at a high speed, is commonly referred to HSUPA business or enhanced uplink technology.

Before not introducing the HSUPA technology, mature methods has been arranged for the network planning of WCDMA R99 uplink service.For example, use Campbell (Campell) theorem, the business of different rates is converted into the equivalent speech business, just can unify afterwards to do the network size estimation according to speech business.

Along with the evolution of WCDMA protocol version, importance and the urgency of the network planning of HSUPA in networking manifests day by day.Campbell is applicable to the business conversion of using dedicated channel, fixed rate to distribute, will convert on the equivalent speech channel into CS12.2kbps according to information such as the signal quality value Eb/No value of this business need, business service speed.And the technical characterstic of HSUPA is according to upstream noise lifting thresholding, resources such as feedback regulation UE transmitted power, the business service speed that its user obtains changes, and can rise to the reduction that cost exchanges Eb/No for tolerance HARQ retransmission rate, so HSUPA does not have the basis of using Campbell.

HSUPA has remedied the deficiency of R99 business throughput as the up Enhanced Technology of WCDMA system, has promoted the tenability to the high-speed data user, and cooperatively interacting with the HSDPA of R5 version makes all liftings significantly of up-downgoing throughput ability.So the HSUPA technology is the additional and development to R99 technology, HSDPA technology, is in operational extension of WCDMA and evolution.When the WCDMA system is done the network planning, need take into account R99 business, HSDPA business, HSUPA business, the WCDMA that cooks up like this is only the network that satisfies all kinds wireless traffic demand.

Summary of the invention

The object of the present invention is to provide a kind of business demand and resource limit according to networking, the WCDMA that makes HSUPA business and R99 dedicated channel service can both rationally reach desired value introduces the network plan method of high speed uplink packet bag access technology.

For achieving the above object, the present invention by the following technical solutions: a kind of WCDMA introduces the network plan method of high speed uplink packet bag access technology, comprises the steps:

Steps A, budget are planned the coverage of sub-district, determine uplink network load, business objective demand, website restriction and noise rise thresholding;

Step B, inserted carrying in R99 dedicated channel and high speed uplink packet bag respectively by the business of planning sub-district, the network size that estimation R99 dedicated channel loaded service needs according to predetermined noise rise thresholding, is estimated the high speed uplink packet bag and is inserted throughput and the noise rise that can support;

Step C by adjusting noise rise resource, network load, service bearer and the website scale that allows, makes the network size of step B estimation can satisfy the business objective demand and the uplink network load of the definite quilt planning sub-district of steps A.

Preferably: introduce in the network plan method of high speed uplink packet bag access technology at described WCDMA, described steps A is specially:

Steps A 1 determines that the high speed uplink packet bag inserts, the resource limit of R99 and planning desired value;

Steps A 2 is determined to satisfy the high speed uplink packet bag and is inserted the needed maximum radius of being planned the sub-district of covering, is guaranteeing to carry out volume calculation on the basis that the access of R99 dedicated channel and high speed uplink packet bag covers;

Preferably: introduce in the network plan method of high speed uplink packet bag access technology at described WCDMA, described step B is specially:

Step B1 analyzes being done carrying by the business model of planning sub-district, and the clear and definite high speed uplink packet bag of whether need planning on same frequency inserts and the R99 dedicated channel service;

Step B2 at single frequency planning high speed uplink packet bag access service, determines by the total noise rise in planning sub-district;

Step B3, determines by the total noise rise in planning sub-district with the carrier frequency Planning Model at R99 dedicated channel and HSUPA.

Preferably: introduce in the network plan method of high speed uplink packet bag access technology at described WCDMA, described step B2 is specially:

Step B21 inserts the sector traffic demand according to the high speed uplink packet bag estimated, inquiry high speed uplink packet bag access link simulation curve, and being met the high speed uplink packet bag, to insert the sector flow needed, the chip-level signal to noise ratio of enhanced uplink channel;

Step B22, according to needed chip-level snr value, the corresponding high speed uplink packet bag of inquiry inserts noise rise in the simulation result table;

Step B23, in single frequency planning HSUPA business, the high speed uplink packet bag inserts noise rise and is by the total noise rise in planning sub-district.

Preferably: introduce in the network plan method of high speed uplink packet bag access technology at described WCDMA, described step B3 is specially:

Step B31 inserts with the carrier frequency Planning Model in R99 dedicated channel and high speed uplink packet bag, adopts the noise rise of the special uplink channel under the Campbell conversion R99 capacity requirement;

Step B32 judges whether the noise rise of described special uplink channel satisfies predetermined R99 noise gate;

Step B33 if satisfy, determines the noise rise that the high speed uplink packet bag inserts;

Step B34 is planned that the total noise rise in sub-district is the noise rise of special uplink channel and the noise rise results of interaction that the high speed uplink packet bag inserts.

Preferably: introduce in the network plan method of high speed uplink packet bag access technology at described WCDMA, also comprise:

Step B35: if the noise rise of described special uplink channel does not satisfy predetermined R99 noise gate, cut down radius of society, make the noise rise of special uplink channel satisfy predetermined R99 noise gate.

Preferably: introduce in the network plan method of high speed uplink packet bag access technology at described WCDMA, described step B33 is specially:

B331 utilizes Campbell that R99 dedicated channel up channel done equivalent speech channel estimation;

B332 calculates the channel tenability of every contained fan according to the uplink load formula;

B333, the network size of R99 dedicated channel capacity is satisfied in estimation.

The present invention has taken into account R99 planning in to the HSUPA planning process, introduce the dynamical feedback regulation mechanism, on the basis of ripe R99 planing method, makes HSUPA planning simple fast, avoids the professional Campbell of using to HSUPA.

Description of drawings

Fig. 1 is a HSUPA planning flow chart of the present invention;

Fig. 2 introduces the network plan method particular flow sheet of high speed uplink packet bag access technology for WCDMA.

Embodiment

Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.

Whether at first need the resource limit and planning desired value of clear and definite HSUPA, R99, for example how many frequencies HSUPA, R99 use, with building frequently; The class of business of the support of R99 dedicated channel and the traffic carrying capacity of every kind of business; Information that how many planning re-set target throughput of sector of HSUPA is or the like.These are as adjustment foundation and reference in planning process.

Step 201: obtain to satisfy HSUPA according to link budget earlier and cover needed largest cell radius.Guaranteeing to carry out volume calculation on the basis that R99 dedicated channel and HSUPA cover.

Step 202: the up channel that can have the R99 dedicated channel for certain HSUPA planning zone usually; therefore at first need to analyze to being done carrying by the business model in planning zone; for example with real time business/low speed business etc. by dedicated channel carrying (suppose the aMbps/ sector), high speed business carries (supposing the bMbps/ sector) by HSUPA.For the HSUPA network planning, also need clearly whether need on same frequency, plan HSUPA and R99 dedicated channel service.

Step 203: can be according to the HSUPA sector traffic demand of estimating in the step 202, go to inquire about the HSUPA link-simulation curve, be met the Ec/Io value of the needed E-DCH of bMbps/ sector flow, this value has embodied NodeB the disposal ability of HSUPA has been represented (signal quality of E-DCH).According to needed Ec/Io (chip-level signal to noise ratio) value, in the simulation result table, inquire about corresponding noise rise RoT_HSUPA again.

Step 204: if in single frequency planning HSUPA business, all loads are all by the professional contribution of HSUPA.Therefore the noise rise RoT of system loading correspondence is exactly RoT_HSUPA.

Step 205: with the carrier frequency Planning Model, need preferentially satisfy the capacity planning of R99 dedicated channel for R99 dedicated channel and HSUPA.Can convert the equivalent channel number that satisfies under the predetermined traffic model by Campbell, and then obtain being planned the network size in zone.Use Campbell to R99 dedicated channel up channel do the estimation of equivalent speech channel, calculate the channel tenability of every contained fan again according to the uplink load formula, and then calculate the network size when satisfying capacity.

${\mathrm{\η}}_{\mathrm{UL}}=(1+i)\underset{j=1}{\overset{N}{\mathrm{\Σ}}}\frac{1}{1+\frac{W}{{(\mathrm{Eb}/\mathrm{No})}_j{R}_j{v}_j}}$

If can not satisfy set RoT thresholding to the planning of R99 dedicated channel, then enter step 206 adjustment, do the HSUPA estimation otherwise enter step 207.

Step 206: the network size that ordinary circumstance covers estimation is less than the network size of volume calculation, therefore needs to adjust number of base stations, dwindles radius of society and make the RoT of R99 dedicated channel satisfy predetermined planning demand.

Step 207:, whether remaining noise rise resource is satisfied the bMbps/ throughput of sector assess satisfying on the R99 dedicated channel capacity planning basis.Still need simulation result support.Raise on the basis of RoT_DCH making an uproar at the bottom of the system, when the emulation assessment reaches RoT_HSUPA, the Ec/Io (the chip-level signal to noise ratio of enhanced uplink channel) of corresponding E-DCH, and corresponding HSUPA throughput.

Step 208: for planning that with frequently introducing HUSPA and R99 dedicated channel system noise lifting RoT is both coefficient results.

Step 209:, mean that then each contained fan loaded service model is overweight if the system noise lifting is higher than planning predetermined threshold (generally can be set to 6dB).Might be that the R99 dedicated channel service is overweight, perhaps the HSUPA business model be overweight, also might be that the both is overweight.Therefore can adopt adjustment R99 dedicated channel and HSUPA planning load thresholding RoT_DCH, RoT_HSUPA separately successively so that optimization resource proportioning between the two; With some professional dedicated channel or HSUPA carrying of changeing by underloading; Increase the base station scale, share the traffic carrying capacity of every contained fan; Increase modes such as carrier frequency dilatation.

Step 210:HSUPA plans end.

Claims (7)

1, a kind of WCDMA introduces the network plan method of high speed uplink packet bag access technology, comprises the steps:

Steps A, budget are planned the coverage of sub-district, determine uplink network load, business objective demand, website restriction and noise rise thresholding;

Step B, inserted carrying in R99 dedicated channel and high speed uplink packet bag respectively by the business of planning sub-district, the network size that estimation R99 dedicated channel loaded service needs according to predetermined noise rise thresholding, is estimated the high speed uplink packet bag and is inserted throughput and the noise rise that can support;

Step C by adjusting noise rise resource, network load, service bearer and the website scale that allows, makes the network size of step B estimation can satisfy the business objective demand and the uplink network load of the definite quilt planning sub-district of steps A.

2, WCDMA according to claim 1 introduces the network plan method of high speed uplink packet bag access technology, it is characterized in that described steps A is specially:

Steps A 1 determines that the high speed uplink packet bag inserts, the resource limit of R99 and planning desired value;

Steps A 2 is determined to satisfy the high speed uplink packet bag and is inserted the needed maximum radius of being planned the sub-district of covering, is guaranteeing to carry out volume calculation on the basis that the access of R99 dedicated channel and high speed uplink packet bag covers.

3, WCDMA according to claim 1 introduces the network plan method of high speed uplink packet bag access technology, it is characterized in that described step B is specially:

Step B1 analyzes being done carrying by the business model of planning sub-district, and the clear and definite high speed uplink packet bag of whether need planning on same frequency inserts and the R99 dedicated channel service;

Step B2 at single frequency planning high speed uplink packet bag access service, determines by the total noise rise in planning sub-district;

Step B3, determines by the total noise rise in planning sub-district with the carrier frequency Planning Model at R99 dedicated channel and HSUPA.

4, WCDMA according to claim 3 introduces the network plan method of high speed uplink packet bag access technology, it is characterized in that described step B2 is specially:

Step B21 inserts the sector traffic demand according to the high speed uplink packet bag estimated, inquiry high speed uplink packet bag access link simulation curve, and being met the high speed uplink packet bag, to insert the sector flow needed, the chip-level signal to noise ratio of enhanced uplink channel;

Step B22, according to needed chip-level snr value, the corresponding high speed uplink packet bag of inquiry inserts noise rise in the simulation result table;

Step B23, in single frequency planning HSUPA business, the high speed uplink packet bag inserts noise rise and is by the total noise rise in planning sub-district.

5, WCDMA according to claim 3 introduces the network plan method of high speed uplink packet bag access technology, it is characterized in that described step B3 is specially:

Step B31 inserts with the carrier frequency Planning Model in R99 dedicated channel and high speed uplink packet bag, adopts the noise rise of the special uplink channel under the Campbell conversion R99 capacity requirement;

Step B32 judges whether the noise rise of described special uplink channel satisfies predetermined R99 noise gate;

Step B33 if satisfy, determines the noise rise that the high speed uplink packet bag inserts;

Step B34 is planned that the total noise rise in sub-district is the noise rise of special uplink channel and the noise rise results of interaction that the high speed uplink packet bag inserts.

6, WCDMA according to claim 5 introduces the network plan method of high speed uplink packet bag access technology, it is characterized in that also comprising:

Step B35: if the noise rise of described special uplink channel does not satisfy predetermined R99 noise gate, cut down radius of society, make the noise rise of special uplink channel satisfy predetermined R99 noise gate.

7, WCDMA according to claim 5 introduces the network plan method of high speed uplink packet bag access technology, it is characterized in that described step B33 is specially:

B331 utilizes Campbell that R99 dedicated channel up channel done equivalent speech channel estimation;

B332 calculates the channel tenability of every contained fan according to the uplink load formula;

B333, the network size of R99 dedicated channel capacity is satisfied in estimation.

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