CN101420700A - Network coverage design method based on high-speed uplink packet access technique - Google Patents
Network coverage design method based on high-speed uplink packet access technique Download PDFInfo
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- CN101420700A CN101420700A CNA2007101637248A CN200710163724A CN101420700A CN 101420700 A CN101420700 A CN 101420700A CN A2007101637248 A CNA2007101637248 A CN A2007101637248A CN 200710163724 A CN200710163724 A CN 200710163724A CN 101420700 A CN101420700 A CN 101420700A
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Abstract
The invention discloses a network coverage design method based on an HSUPA technique; wherein, whether the network coverage design needs to ensure the speed of high-speed uplink grouping access user at the district edge or not is judged; if so, the coverage budget planning is carried out according to the target throughput requirement of the high-speed uplink grouping access; if not, the target throughput budget planning of the high-speed uplink grouping access is carried out according to the existing network radius. During the uplink network coverage design of the HSUPA, the method distinguishes two different network coverage design aims as follows: using the coverage distance as guidance and using the edge throughput as guidance, furthermore the invention closely combines the HSUPA link simulation results, based on which the network coverage design process is completed.
Description
Technical field
The present invention relates to Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division MultipleAccess, hereinafter to be referred as WCDMA) system, particularly, relate to a kind of based on high speed uplink packet access (High-Speed Uplink Packet Access, HSUPA) network coverage design method of technology
Background technology
The up link enhancement techniques is to use E-DCH (Enhanced-DedicatedChannel, the enhancing dedicated channel) channel is to PS (Packet Switched, packet switching) business is carried, and can still be called HSUPA (perhaps being called the enhanced uplink technology) business traditionally.
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, cooperatively interacts 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.
Original R99 covering design method is comparative maturity, and has been used widely, and its key parameter is professional Eb/No value (bit-level quality factor).Different R99 business has different Eb/No values.Can calculate receiver sensitivity by Eb/No, and then obtain aerial path loss, finish the up covering design of R99.But this scheme is not suitable for HSUPA, and reason is that HSUPA dynamically adjusts uplink speed according to environment, rather than has fixing Eb/No value as R99 DCH.In addition, the HSUPA network has increased many uplink physical channels, must consider the expense influence of these channels when carrying out network coverage design.
In actual networking, can adopt HSUPA and traditional shared site of R99DCH, but HSUPA is different with the network coverage design method of R99.HSUPA has himself technical characterstic, and is different along with the variation of HSUPA service rate as the target signal to noise ratio of high noise rise thresholding (Rise over Thermal, i.e. RoT), HSUPA.Therefore, need a kind of network coverage design that is suitable for HSUPA.
Summary of the invention
Consider the needs that exist in the correlation technique provide a kind of HSUPA of being suitable for network coverage design problem and the present invention is proposed.For this reason, the present invention aims to provide a kind of network coverage design method based on the HSUPA technology, and this method is applicable to the up covering budget of the HSUPA network planning.
In the method, judge whether network coverage design needs to guarantee the speed of high-speed uplink packet access user at cell edge, in judged result for being under the situation, the target throughput that inserts according to high speed uplink packet requires to cover budget programing, in judged result is under the situation not, carries out the target throughput budget programing that high speed uplink packet inserts according to existing network radius.
On the one hand, the target throughput that inserts according to the high speed uplink packet processing that requires to carry out budget programing specifically comprises: the target throughput of determining high-speed uplink packet access user; Search the link corresponding simulation curve according to the target throughput, and determine the chip-level signal to noise ratio of enhanced dedicated physical data channel according to target throughput and the link-simulation curve of searching; Determine receiver sensitivity according to the chip-level signal to noise ratio, and determine the up satisfiable greatest path loss of eating dishes without rice or wine according to receiver sensitivity.
In above-mentioned processing, be under the situation of application layer speed at the target throughput, be translated into media access control layer speed.In addition, for different high-speed uplink packet access terminal types, inquire about different link-simulation curve.And the maximum throughput rate of the link-simulation curve of searching is more than or equal to the target throughput.
In addition, when determining to eat dishes without rice or wine greatest path loss, need deduct the power overhead of the special physical controlling channel of upward of special physical controlling channel of upward, up enhancement mode Dedicated Physical Control Channel, high speed downlink packet access from the transmitting power of subscriber equipment.
Above-mentioned processing may further include: according to the greatest path loss of eating dishes without rice or wine, calculate geographical coverage by the wireless frequency propagation model.
On the other hand, the processing of carrying out the target throughput budget programing that high speed uplink packet inserts specifically comprises: determine the ascending idle port greatest path loss by distance between sites and wireless frequency propagation model; Determine the chip-level signal to noise ratio of the enhanced dedicated physical channel that uplink receiver receives; Search link-simulation curve, the throughput of search key chip level signal to noise ratio correspondence in the link simulation result.
In above-mentioned processing,, inquire about different link-simulation curve for different high-speed uplink packet access terminal types.
By the present invention, HSUPA is being carried out in the uplink network covering design, distinguished with the coverage distance be the guiding, with the edge throughput serve as the guiding these two kinds different network coverage purposes of design, closely in conjunction with HSUPA link simulation result, on the basis of simulation result, finished network coverage design process.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart based on the network coverage design method of HSUPA technology according to the embodiment of the invention;
Fig. 2 be according to the embodiment of the invention based in the network coverage design method of HSUPA technology to be covered as the flow chart planned of guiding;
Fig. 3 be according to the embodiment of the invention based in the network coverage design method of HSUPA technology being the flow chart that guiding is planned with the throughput;
Fig. 4 is the flow chart based on the processing example of the network coverage design method of HSUPA technology according to the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
The present invention aims to provide a kind of network coverage design method based on the HSUPA technology, and this method is applicable to the up covering budget of the HSUPA network planning.
As shown in Figure 1, the roughly processing procedure of this method is as follows: judge at first whether network coverage design needs to guarantee the speed of HSUPA user at cell edge, in judged result for being (promptly, the purpose of planning is to guarantee under the prerequisite of the predetermined throughput when satisfying HSUPA at marginal position, budget greatest path loss value) under the situation, target throughput (also can be called minimum fixed bit rate) according to HSUPA requires to cover budget programing, promptly, with the target throughput serves as that guiding is planned, in judged result is under the situation not, according to existing network radius (promptly, station spacing has determined that perhaps the R99 Service coverage is determined) carry out the budget programing of the target throughput of HSUPA, the up path loss that needs to satisfy be a definite value, that is, plan to be covered as guiding.
Below will be described above-mentioned two kinds of situations further combined with accompanying drawing.
(1) network coverage design is a guiding with the throughput
As shown in Figure 2, the processing under this situation comprises (step S202-step S206):
Step S202 determines HSUPA user's target throughput (that is, minimum edge throughput or the minimum speed that guarantees);
In this step, be under the situation of application layer speed at the target throughput, because the link simulation result is a MAC layer speed, so need be translated into medium access control (MAC) layer speed:
MAC layer speed=application layer speed/(1-MAC layer expense) * (1-RLC layer expense).
Step S204, search the link corresponding simulation curve according to the target throughput, and determine the Ec/No (chip-level signal to noise ratio) of E-DPDCH (EnhanceDedicated Physical Data Channel, enhanced dedicated physical data channel) according to target throughput and the link-simulation curve of searching;
In this step, for different HSUPA terminal types, inquire about different link-simulation curve, and the maximum throughput rate of the link-simulation curve of searching is more than or equal to above-mentioned target throughput.
Step S206 by general networks covering design mode, determines receiver sensitivity according to the chip-level signal to noise ratio, and determines up satisfiable MaxPathloss (greatest path loss of eating dishes without rice or wine) according to receiver sensitivity.
Then, according to Max Pathloss, calculate geographical coverage (base station distance) by RF (Radio Frequency, wireless frequency) propagation model.After finishing network coverage design, the maximum planning of output radius.
(2) network coverage design is to be covered as guiding
As mentioned above, this situation means plans that to existing network the up path loss that need satisfy is a definite value.As shown in Figure 3, the processing under this situation comprises (step S302-step S306):
Step S302 determines up MaxPathloss by distance between sites and RF propagation model.
Step S304 by general networks covering design mode, determines the Ec/No of the E-DPDCH that uplink receiver receives.
Step S306 searches link-simulation curve, searches the throughput of Ec/No correspondence in the link simulation result; In this step,, need the different link-simulation curve of inquiry for different HSUPA terminal types.
Afterwards, finish network coverage design, output is at the HSUPA customer edge throughput that satisfies under certain coverage distance situation.
Below will said process be described further combined with example, for convenience of description, below only to guarantee that the edge throughput is that the network coverage design of guiding is that example is elaborated, can be understood as the inverse process of this process with the network coverage design that is covered as guiding, no longer be repeated in this description at this.
As shown in Figure 4, the processing in this example can be described below:
Step 401: determine whether this planning will guarantee that HSUPA user will reach a certain speed (that is, above-mentioned target throughput) at cell edge, if judged result, then jumps to step 402 (otherwise, the right-hand branch flow process of execution graph 4) for being;
Step 402: determine the value of cell edge throughput v, and clearly whether this speed is MAC layer speed.Because the link simulation result is a MAC layer speed,, then need to be MAC layer speed: MAC layer speed=application layer speed/(1-MAC layer expense) * (1-RLC layer expense) according to following formula conversion therefore if v is an application layer speed.
Step 403: according to the information that targeted rate and the network planning obtain in advance, determine the HSUPA terminal type, usually, the HSUPA terminal has 6 types, each type of capability difference, and the peak value throughput is obviously different.
Step 404: in 7 fixed reference link simulation results, select the link-simulation curve L of a HSUPA terminal type coupling of determining with step 403, the maximum throughput rate of this curve L is greater than or equals v.
Step 405: the HSUPA throughput v according to step 402 obtains obtains seeking among the curve L signal to noise ratio value that satisfies throughput v in step 404.Because the point on the link-simulation curve disperses, therefore need carry out interpolation calculation according to the size of v and adjacent link result, obtain the signal to noise ratio SIR of the E-DPDCH of v correspondence at last.
Step 406: similar general networks covering design table obtains the sensitivity of SIR computing equipment by step 405, and then obtains aerial path loss Max Pathloss value.Need to prove, the present invention is different with the general networks covering design, in the transmitted power of UE, need the up DPCCH of deduction (Dedicated Physical Control Channel, Dedicated Physical Control Channel), E-DPCCH (Enhance Dedicated Physical ControlChannel, the enhancement mode Dedicated Physical Control Channel), the power overhead of HS-DPCCH (HSDPA DedicatedPhysical Control Channel, HSDPA Dedicated Physical Control Channel).Deduct the network coverage design result after the above expense, be only the up covering estimated value of last HSUPA.Afterwards, network coverage design process finishes.
As mentioned above, by the present invention, HSUPA is being carried out in the uplink network covering design, distinguished with the coverage distance be the guiding, with the edge throughput serve as the guiding these two kinds different network coverage purposes of design, and closely in conjunction with HSUPA link simulation result, on the basis of simulation result, finished network coverage design process.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. network coverage design method based on high-speed uplink packet access technique, it is characterized in that, judge whether network coverage design needs to guarantee the speed of high-speed uplink packet access user at cell edge, in judged result for being under the situation, the target throughput that inserts according to high speed uplink packet requires to cover budget programing, in judged result is under the situation not, carries out the target throughput budget programing that high speed uplink packet inserts according to existing network radius.
2. network coverage design method according to claim 1 is characterized in that, the processing that the described target throughput that inserts according to high speed uplink packet requires to carry out budget programing specifically comprises:
Determine the described target throughput of high-speed uplink packet access user;
Search the link corresponding simulation curve according to described target throughput, and determine the chip-level signal to noise ratio of enhanced dedicated physical data channel according to described target throughput and the described link-simulation curve of searching;
Determine receiver sensitivity according to described chip-level signal to noise ratio, and determine the up satisfiable greatest path loss of eating dishes without rice or wine according to described receiver sensitivity.
3. network coverage design method according to claim 2 is characterized in that, is under the situation of application layer speed at described target throughput, is translated into media access control layer speed.
4. network coverage design method according to claim 2 is characterized in that, for different high-speed uplink packet access terminal types, inquires about different link-simulation curve.
5. network coverage design method according to claim 2 is characterized in that, the maximum throughput rate of the described link-simulation curve of searching is more than or equal to described target throughput.
6. network coverage design method according to claim 2, it is characterized in that, determining described eating dishes without rice or wine during greatest path loss, need deduct the power overhead of the special physical controlling channel of upward that special physical controlling channel of upward, up enhancement mode Dedicated Physical Control Channel, high speed downlink packet insert from the transmitting power of subscriber equipment.
7. according to each described method in the claim 2 to 6, it is characterized in that, further comprise:
According to the described greatest path loss of eating dishes without rice or wine, calculate geographical coverage by the wireless frequency propagation model.
8. method according to claim 1 is characterized in that, the described processing of carrying out the target throughput budget programing of high speed uplink packet access specifically comprises:
Determine the ascending idle port greatest path loss by distance between sites and wireless frequency propagation model;
Determine the chip-level signal to noise ratio of the enhanced dedicated physical channel that uplink receiver receives;
Search link-simulation curve, in the link simulation result, search the throughput of described chip-level signal to noise ratio correspondence.
9. method according to claim 8 is characterized in that, for different high-speed uplink packet access terminal types, inquires about different link-simulation curve.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103369571A (en) * | 2013-07-26 | 2013-10-23 | 厦门大学 | Method for correction and coverage self-optimization of propagation model based on multi-network combined measurement |
| CN107708136A (en) * | 2017-09-20 | 2018-02-16 | 北京市天元网络技术股份有限公司 | A kind of high-speed rail cell recognition methods and device |
-
2007
- 2007-10-23 CN CNA2007101637248A patent/CN101420700A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103369571A (en) * | 2013-07-26 | 2013-10-23 | 厦门大学 | Method for correction and coverage self-optimization of propagation model based on multi-network combined measurement |
| CN103369571B (en) * | 2013-07-26 | 2016-12-07 | 厦门大学 | Propagation model revision based on many nets combined measurement and coverage self-optimization method |
| CN107708136A (en) * | 2017-09-20 | 2018-02-16 | 北京市天元网络技术股份有限公司 | A kind of high-speed rail cell recognition methods and device |
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Open date: 20090429 |