CN101159459B - Initial power control method, system and device - Google Patents
Initial power control method, system and device Download PDFInfo
- Publication number
- CN101159459B CN101159459B CN2007101882042A CN200710188204A CN101159459B CN 101159459 B CN101159459 B CN 101159459B CN 2007101882042 A CN2007101882042 A CN 2007101882042A CN 200710188204 A CN200710188204 A CN 200710188204A CN 101159459 B CN101159459 B CN 101159459B
- Authority
- CN
- China
- Prior art keywords
- base station
- travelling carriage
- target cell
- path loss
- signal strength
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/143—Downlink power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/247—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter sent by another terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The inventive embodiment discloses an initial power control method, which includes that: calculate the path loss between a mobile platform and a base station; according to the path loss and the transmission power intensity of the distributed carrier frequency where the calling is, predict the intensity of the downlink signal received by the mobile platform; according to the intensity of the downlink signal received by the mobile platform, determine the power intensity of power transmission, and inform the base station of transmitting power according to the power intensity. Besides, the inventive embodiment also discloses an initial power control system and device. The technical proposal disclosed in the invention realizes the power control of the initial segment by indirectly obtaining the relatively accurate information of the downlink signal intensity received by the mobile platform, and reduces the interference to the system and saves the power consumption of the base station.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to a kind of initial power control method, system and device.
Background technology
In mobile communication technology, in order to keep high-quality communication, other users are not produced interference again, usually need to control the transmitting power of base station.At present, in the power control of global system for mobile communications (GSM), base station controller (BSC) need to be behind the measurement report of the calling place channel that receives the some that travelling carriage (MS) reports, the measurement report that receives is carried out interpolation, the processing such as filtering, the measurement report of losing with processing is also eliminated wild point (burr), and the downstream signal intensity level that receives of the MS after obtaining processing, afterwards, the downstream signal intensity level that the MS that obtains is received is compared with the downstream signal intensity level that desirable MS receives, pass through power control algorithm, calculate the power rank that base station (BTS) should be adjusted to, informing base station carries out power emission according to this power rank.In addition, consider call out just accessed after and the residential quarter switch and wait the metrical information of initial situation usually not accurate enough after just having finished, therefore carry out power when controlling, can abandon initial several measurement reports, with the stability of guaranteed output control algolithm.
As seen, in the prior art, need to collect the measurement report of some and can abandon several initial measurement reports when carrying out power control, therefore so that very hysteresis of power control, and can't carry out power control in the starting stage of calling out the switching of access and residential quarter, the base station can only be launched with maximum power, and this certainly will increase the interference of system, the traffic affecting quality, the power consumption of wasting simultaneously the base station.
Summary of the invention
In view of this, provide a kind of initial power control method on the one hand in the embodiment of the invention, a kind of initial power control system and device are provided on the other hand, in order to realize the power control of starting stage, reduce the interference to system, save the power consumption of base station.
The initial power control method that provides in the embodiment of the invention comprises:
When activating the Traffic Channel of Target cell or travelling carriage successful switch during to Target cell, the signal strength signal intensity of the Broadcast Control Channel of the Target cell that the travelling carriage that the base station controller receiving mobile reports receives, and the signal strength signal intensity of the Target cell Broadcast Control Channel that receives according to the travelling carriage that receives is calculated the path loss between described travelling carriage and the base station, Target cell place; And/or, when the activating service channel or travelling carriage when successfully accessing, base station controller obtains the actual emission power of travelling carriage, the uplink signal strength that the base station measurement that the reception base station reports arrives, and the uplink signal strength that arrives according to described base station measurement and the actual emission power intensity of described travelling carriage, calculate the path loss between described travelling carriage and the described base station;
Base station controller is according to the transmission power intensity of described path loss and calling place carrier frequency, the downstream signal intensity that the prediction travelling carriage receives;
The downstream signal intensity that the travelling carriage that base station controller obtains according to prediction receives determines that the base station carries out the power level of power emission, and informing base station carries out power emission according to described power level.
The initial power control system that provides in the embodiment of the invention comprises: base station controller, base station and travelling carriage, wherein,
Described base station controller is used for when activating the Traffic Channel of Target cell or travelling carriage successful switch during to Target cell, the signal strength signal intensity of the Broadcast Control Channel of the Target cell that the travelling carriage that receiving mobile reports receives, and the signal strength signal intensity of the Target cell Broadcast Control Channel that receives according to the travelling carriage that receives is calculated the path loss between described travelling carriage and the base station, Target cell place; And/or, when the activating service channel or travelling carriage when successfully accessing, obtain the actual emission power of travelling carriage, the uplink signal strength that the base station measurement that the reception base station reports arrives, and the uplink signal strength that arrives according to described base station measurement and the actual emission power intensity of described travelling carriage, calculate the path loss between described travelling carriage and the described base station; According to the transmission power intensity of described path loss with the calling place carrier frequency that distributes, the downstream signal intensity that the prediction travelling carriage receives; According to the downstream signal intensity that described travelling carriage receives, determine that the base station carries out the power level of power emission, informing base station carries out power emission according to described power level;
Described base station controller comprises:
The path loss computing module is used for calculating the path loss between travelling carriage and the base station;
Signal strength signal intensity is calculated module, is used for the path loss that calculates according to described path loss computing module and the transmission power intensity of calling out the place carrier frequency, the downstream signal intensity that the prediction travelling carriage receives;
Power control module is used for calculating the downstream signal intensity that travelling carriage that the module prediction obtains receives according to described signal strength signal intensity, determines that the base station carries out the power level of power emission, and informing base station carries out power emission according to described power level;
This base station controller further comprises:
Broadcast Control Channel signal strength signal intensity receiver module is used for when activating the Traffic Channel of Target cell or travelling carriage successful switch during to Target cell, the signal strength signal intensity of the Broadcast Control Channel of the Target cell that the travelling carriage that receiving mobile reports receives;
The transmission power intensity of the signal strength signal intensity of the Broadcast Control Channel of the Target cell that described path loss computing module receives according to described travelling carriage and the Broadcast Control Channel place carrier frequency of Target cell is calculated the path loss between described travelling carriage and the base station, Target cell place;
And/or this base station controller further comprises:
The transmission power of mobile station acquisition module is used for when the activating service channel or travelling carriage when successfully accessing, and obtains the actual emission power of travelling carriage;
The uplink signal strength receiver module is used for when the activating service channel or travelling carriage when successfully accessing, and receives the uplink signal strength that base station measurement that the base station reports arrives;
The base station measurement that described path loss computing module receives according to described uplink signal strength receiver module to uplink signal strength and the actual emission power intensity of the travelling carriage that obtains of described transmission power of mobile station acquisition module, calculate the path loss between described travelling carriage and the described base station.
The initial power control device that provides in the embodiment of the invention comprises:
The path loss computing module is used for calculating the path loss between travelling carriage and the base station;
Signal strength signal intensity is calculated module, is used for the transmission power intensity according to the calling place carrier frequency of described path loss and system assignment, the downstream signal intensity that the prediction travelling carriage receives;
Power control module is used for the downstream signal intensity that receives according to described travelling carriage, determines that the base station carries out the power level of power emission, and informing base station carries out power emission according to described power level;
This device further comprises:
Broadcast Control Channel signal strength signal intensity receiver module is used for when activating the Traffic Channel of Target cell or travelling carriage successful switch during to Target cell, the signal strength signal intensity of the Broadcast Control Channel of the Target cell that the travelling carriage that receiving mobile reports receives;
The transmission power intensity of the signal strength signal intensity of the Broadcast Control Channel of the Target cell that described path loss computing module receives according to described travelling carriage and the Broadcast Control Channel place carrier frequency of Target cell is calculated the path loss between described travelling carriage and the base station, Target cell place;
And/or this device further comprises:
The transmission power of mobile station acquisition module is used for when the activating service channel or travelling carriage when successfully accessing, and obtains the actual emission power of travelling carriage;
The uplink signal strength receiver module is used for when the activating service channel or travelling carriage when successfully accessing, and receives the uplink signal strength that base station measurement that the base station reports arrives;
The base station measurement that described path loss computing module receives according to described uplink signal strength receiver module to uplink signal strength and the actual emission power intensity of the travelling carriage that obtains of described transmission power of mobile station acquisition module, calculate the path loss between described travelling carriage and the described base station.
Can find out from such scheme, pass through to calculate the path loss between travelling carriage and the base station in the embodiment of the invention, and according to the transmission power intensity of the path loss of calculating and the calling place carrier frequency that distributes, the downstream signal intensity that the prediction travelling carriage receives, namely in the starting stage of calling out the switching of access and residential quarter, indirectly obtain the downstream signal strength information that travelling carriage more accurately receives, and then according to the downstream signal strength information that receives of travelling carriage of prediction, determine that the base station carries out the power level of power emission, informing base station carries out power emission according to described power level, thereby realized the power control of starting stage, reduced the interference of system and saved the power consumption of base station.
Description of drawings
Fig. 1 is the exemplary process diagram of initial power control method in the embodiment of the invention one;
Fig. 2 is a structural representation of initial power control device in the embodiment of the invention one;
Fig. 3 is another structural representation of initial power control device in the embodiment of the invention one;
Fig. 4 is the exemplary process diagram of initial power control method in the embodiment of the invention two;
Fig. 5 is the structural representation of initial power control device in the embodiment of the invention two.
Embodiment
In the embodiment of the invention, consider in the starting stage of calling out the situations such as access and minizone switching, owing to can not in time obtain the situations such as the down-run survey report (being the downstream signal strength information that travelling carriage receives) of the calling place channel that MS reports or the metrical information of obtaining be not accurate enough, by calculating the path loss between MS and the base station, and utilize the transmission power intensity of the path loss of calculating and the carrier frequency of calling out the place channel (be called for short and call out the place carrier frequency) that the downstream signal strength information that MS receives is predicted, and then according to the result who predicts, determine that the base station carries out the power level of power emission, informing base station carries out power emission according to described power level.
Correspondingly, the initial power control system in the embodiment of the invention comprises: BSC, base station and MS.Wherein, BSC is used for calculating the path loss between MS and the base station, according to the transmission power intensity of the path loss of calculating with the carrier frequency of calling out the place channel, and the downstream signal intensity that prediction MS receives; According to the downstream signal intensity that described MS receives, determine that the base station carries out the power level of power emission, informing base station carries out power emission according to described power level.
The below is switched take the residential quarter respectively with the situation of calling out access as example, in conjunction with the embodiments and accompanying drawing, further describes.
Embodiment one:
Situation about switching take the residential quarter in the present embodiment is as example, before considering that the residential quarter is switched, MS is in stable state in the cell-of-origin, therefore the signal strength information of the Broadcast Control Channel (BCCH) of the Target cell that receives of MS is more accurate, so in the present embodiment, the signal strength signal intensity of the BCCH of the Target cell that the MS that utilizes source cell base station controller BSC to receive receives is calculated the path loss between MS and the base station, Target cell place.Fig. 1 shows the exemplary process diagram of initial power control method in the embodiment of the invention one, and as shown in Figure 1, this flow process comprises the steps:
101, the signal strength signal intensity (Rxlev_BCCH) of the Broadcast Control Channel (BCCH) of the Target cell that the MS that reception MS reports receives.
Before switching, MS can report BSC by measurement report with the signal strength signal intensity of the BCCH of received Target cell, so that whether BSC switches according to this measurement report decision-making, BSC is according to this measurement report, the signal strength signal intensity of the BCCH of the Target cell that MS is received is carried out record, so that the follow-up path loss calculation of carrying out.
102, the transmission power intensity of the signal strength signal intensity of the BCCH of the Target cell that receives according to above-mentioned MS and the BCCH place carrier frequency of Target cell obtains the path loss between MS and the target BS.
In this step, for switching the residential quarter in the BSC, because therefore the BSC transmission power intensity of the BCCH place carrier frequency of the Target cell that switches of wish as can be known can be calculated according to the following formula path loss:
The signal strength signal intensity of the BCCH of the Target cell that the transmission power intensity-MS of the BCCH place carrier frequency of path loss=Target cell receives
In addition, if the Target cell that wish is switched is the multiband residential quarter, and the BCCH place carrier frequency of Target cell adheres to different frequency range separately with calling out the place carrier frequency, has so path loss between frequency range between the different frequency range.Therefore, when the calculating path loss, need to consider path-loss difference (circular can according to existing techniques in realizing, repeat no more) between the frequency range of BCCH place carrier frequency and calling place carrier frequency herein, the calculating of path loss can be with reference to following formula:
Path-loss difference between signal strength signal intensity+frequency range of the Target cell BCCH that the transmission power intensity-MS of the BCCH place carrier frequency of path loss=Target cell receives
103, according to the transmission power intensity of above-mentioned path loss and calling place carrier frequency, the downstream signal intensity that the prediction travelling carriage receives.
In this step, BSC can predict the downstream signal intensity that MS receives according to transmitting power and the path loss of the carrier frequency of the calling place channel that distributes, be shown below:
Transmission power intensity-the path loss of the downstream signal intensity that MS receives=calling place carrier frequency
104, according to the downstream signal intensity that above-mentioned MS receives, determine that the base station carries out the power level of power emission, informing base station carries out power emission according to described power level.
The implementation procedure of this step can be consistent with implementation procedure of the prior art, being the downstream signal intensity that receives of MS that BSC obtains prediction compares with the downstream signal intensity that desirable MS receives, pass through power control algorithm, calculate the power level that the base station should be adjusted to, for example can calculate the power rank that the base station should be adjusted to, informing base station carries out power emission according to this power rank.
When considering that carrying out the residential quarter switches, BSC at first activates the Traffic Channel (TCH) of the Target cell that application arrives, and after the response that receives Target cell, notice MS is linked into the TCH of Target cell, switches thereby finish the residential quarter.Therefore in the present embodiment, can when activating the TCH of the Target cell that application arrives, utilize said method to carry out initial power control, allow the base station launch according to suitable power; Also can during to Target cell, utilize said method to carry out initial power control at the MS successful switch, allow the base station launch according to suitable power.
In the present embodiment, by when BSC switches, just carrying out power control, so that the base station need not to launch according to maximum power, get final product and only need adopt suitable power to launch, thereby reduced system interference, improved quality of service, and reduced the power consumption of BTS.In addition, because measurement report is restrained before switching, signal strength signal intensity is more stable, so power control is more accurate.
Above method to initial power control in the present embodiment one is described in detail, and the below is described in detail initial power control device in the present embodiment one again.
Fig. 2 has provided a structural representation of initial power control device in the embodiment of the invention one.As shown in Figure 2, this device can comprise: path loss computing module 201, signal strength signal intensity are calculated module 202 and power control module 203.
Wherein, path loss computing module 201 is used for calculating the path loss between travelling carriage and the base station.
Signal strength signal intensity is calculated module 202 and is used for the path loss of calculating according to path loss computing module 201 and the transmission power intensity of calling out the place carrier frequency, the downstream signal intensity that prediction MS receives.Can be by asking for the transmission power intensity of calling out the place carrier frequency and the difference of path loss, prediction obtains the downstream signal intensity that MS receives.Wherein, path loss computing module 201 can send to the path loss of calculating signal strength signal intensity and calculate module 202; Perhaps, signal strength signal intensity is calculated module 202 and is initiatively obtained the path loss that path loss computing module 201 calculates from path loss computing module 201.
Wherein, during specific implementation, in order to calculate the path loss between travelling carriage and the base station, device in the present embodiment can be as shown in Figure 3, basis at above device may further include: Broadcast Control Channel signal strength signal intensity receiver module 301, the signal strength signal intensity of the BCCH of the Target cell that the MS that reports for reception MS receives, the signal strength signal intensity of the Target cell BCCH that the MS that receives is received provides (can initiatively provide, also can provide when path loss computing module 201 obtains again) to path loss computing module 201.
Correspondingly, the transmission power intensity of the BCCH place carrier frequency of the signal strength signal intensity of the BCCH of the Target cell that the MS that path loss computing module 201 receives according to Broadcast Control Channel signal strength signal intensity receiver module 301 receives and Target cell, calculate the path loss between MS and the target BS, namely path loss can be the difference of the signal strength signal intensity of the BCCH of the transmission power intensity of the BCCH place carrier frequency of Target cell and the Target cell that MS receives.
In addition, if the Target cell that wish is switched is the multiband residential quarter, and when BCCH place carrier frequency adheres to different frequency range separately with calling place carrier frequency in the Target cell, then the device in the present embodiment also can further comprise: path loss difference computing module 302 between frequency range, path-loss difference between the frequency range that is used for calculating BCCH place carrier frequency and calling out the place carrier frequency.Path-loss difference between the frequency range that then path loss difference computing module 302 calculates between the transmission power intensity of the BCCH place carrier frequency of the signal strength signal intensity of the path loss computing module 201 Target cell BCCH that can receive according to the MS from Broadcast Control Channel signal strength signal intensity receiver module 301, Target cell and frequency range, calculate the path loss between described travelling carriage and the target BS, i.e. path-loss difference between signal strength signal intensity+frequency range of the Target cell BCCH that receives of the transmission power intensity-MS of the BCCH place carrier frequency of path loss=Target cell.
Embodiment two:
The situation of calling out access take MS in the present embodiment is considered that the up path loss is identical with the downlink path loss, so in the present embodiment, is utilized the up path loss to replace the downlink path loss as example.Fig. 4 shows the exemplary process diagram of the Poewr control method when MS initially accesses in the embodiment of the invention two, and as shown in Figure 4, this flow process can comprise the steps:
401, obtain the actual emission power of MS.
This step can according to the standard among the 3GPP TS05.05, calculate the actual emission power of MS.For example, when calling out access, MS can send the class mark to BSC and upgrade (Classmark Update) message, so that the relevant information of notice BSC self, information such as power class in the BSC class mark updating message that can report according to MS then calculate the actual emission power of MS.
402, the uplink signal strength that the base station measurement that the reception base station reports arrives.
Generally, the base station can be measured the upward signal that receives, and measurement result is reported BSC.When calling out initial access, the base station can be measured the signal that is carried on the Separate Dedicated Control Channel (SDCCH), also can measure just finishing the signal that is carried on the TCH after the access, must arrive the uplink signal strength that the base station receives and report BSC.BSC can to the base station measurement that receives to uplink signal strength carry out record, calculate for use in the subsequent path loss.
Execution sequence to the action described in 401 and 402 in the present embodiment is not done restriction, and the sequencing of its generation does not affect the realization of this method.
403, the uplink signal strength that arrives according to above-mentioned base station measurement and the actual emission power intensity of MS obtain the path loss between MS and the base station.
In this step, can be calculated according to the following formula path loss:
The uplink signal strength that actual emission power intensity-base station measurement of path loss=MS arrives
404, according to the transmission power intensity of the above-mentioned path loss that calculates and calling place carrier frequency, the downstream signal intensity that the prediction travelling carriage receives.
In this step, BSC can predict the downstream signal intensity that MS receives according to transmitting power and the path loss of calling out the place carrier frequency, be shown below:
Transmission power intensity-the path loss of the downstream signal intensity that MS receives=calling place carrier frequency
405, according to the downstream signal intensity that the MS of above-mentioned prediction receives, determine that the base station carries out the power level of power emission, informing base station carries out power emission according to described power level.
The implementation procedure of this step can be consistent with implementation procedure of the prior art, being the downstream signal intensity that receives of MS that BSC obtains prediction compares with the downstream signal intensity that desirable MS receives, pass through power control algorithm, calculate the power rank that the base station should be adjusted to, informing base station carries out power emission according to this power rank.
Consider when calling out initial access, BSC at first activates the TCH of the current area that arrives of application, and after the response that receives current area, notice MS is linked into this TCH, calls out access thereby finish.Therefore in the present embodiment, can when the TCH that the activation application is arrived, utilize said method to carry out power control, allow the base station launch according to suitable power; Also can when MS successfully accesses, utilize said method to carry out power control, allow the base station launch according to suitable power.
In the present embodiment, by when calling out access, just carrying out power control, so that the base station need not to launch according to maximum power, get final product and only need adopt suitable power to launch, thereby reduced system interference, improved quality of service, and reduced the power consumption of BTS.
Above method to initial power control in the present embodiment two is described in detail, and the composition of the initial power control device in the present embodiment two and annexation and device shown in Figure 2 are basically identical.Difference is, in order to calculate the path loss between travelling carriage and the base station, the initial power control device can be further as shown in Figure 5 in the present embodiment two, on the basis of device shown in Figure 2, can also comprise: transmission power of mobile station acquisition module 501 and uplink signal strength receiver module 502.
Wherein, transmission power of mobile station acquisition module 501 is used for obtaining the actual emission power of MS, and the actual emission power of the MS that obtains is offered path loss computing module 201.Wherein, the specific implementation process can be consistent with the implementation procedure of description in shown in Figure 4 401.
Uplink signal strength receiver module 502 is used for receiving the uplink signal strength that base station measurement that the base station reports arrives, with the base station measurement that receives to uplink signal strength offer path loss computing module 201.
Correspondingly, path loss computing module 201 be used for the base station measurement that receives according to uplink signal strength receiver module 502 to uplink signal strength and the actual emission power intensity of the MS that obtains of transmission power of mobile station acquisition module 501, calculate the path loss between MS and the base station.It is the difference of the path loss uplink signal strength that can arrive for actual emission power intensity and the base station measurement of MS.Wherein, transmission power of mobile station acquisition module 501 and uplink signal strength receiver module 502 can send to path loss computing module 201 with the information that obtains separately respectively; Perhaps, path loss computing module 201 initiatively obtains respectively above-mentioned information from two modules.
Initial power control device in the various embodiments described above can be arranged among the BSC.
Initial power control system in the embodiment of the invention comprises: BSC, base station and MS.Wherein, can be provided with device among above-described embodiment one or the embodiment two among the BSC.
The above-mentioned only initial power control when calling out initial access or just having switched to Target cell is described in detail, and follow-up power control is not construed as limiting, and can adopt existing power control algorithm in follow-up power control.Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is preferred embodiment of the present invention; be not for limiting protection scope of the present invention; within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. an initial power control method is characterized in that, the method comprises:
When activating the Traffic Channel of Target cell or travelling carriage successful switch during to Target cell, the signal strength signal intensity of the Broadcast Control Channel of the Target cell that the travelling carriage that the base station controller receiving mobile reports receives, and the signal strength signal intensity of the Target cell Broadcast Control Channel that receives according to the travelling carriage that receives is calculated the path loss between described travelling carriage and the base station, Target cell place; And/or, when the activating service channel or travelling carriage when successfully accessing, base station controller obtains the actual emission power of travelling carriage, the uplink signal strength that the base station measurement that the reception base station reports arrives, and the uplink signal strength that arrives according to described base station measurement and the actual emission power intensity of described travelling carriage, calculate the path loss between described travelling carriage and the described base station;
Base station controller is according to the transmission power intensity of described path loss and calling place carrier frequency, the downstream signal intensity that the prediction travelling carriage receives;
The downstream signal intensity that the travelling carriage that base station controller obtains according to prediction receives determines that the base station carries out the power level of power emission, and informing base station carries out power emission according to described power level.
2. the method for claim 1, it is characterized in that, the signal strength signal intensity of the Target cell Broadcast Control Channel that described travelling carriage according to receiving receives, the path loss of calculating between described travelling carriage and the base station, Target cell place comprises: base station controller deducts the transmission power intensity of the Broadcast Control Channel place carrier frequency of Target cell the signal strength signal intensity of the Target cell Broadcast Control Channel that the travelling carriage that receives receives, and obtains the path loss between described travelling carriage and the base station, Target cell place.
3. the method for claim 1, it is characterized in that, Broadcast Control Channel place carrier frequency adheres to different frequency range separately with calling out the place carrier frequency in the described Target cell, and the method further comprises: base station controller calculates path-loss difference between the frequency range of described Broadcast Control Channel place carrier frequency and calling place carrier frequency;
The signal strength signal intensity of the Broadcast Control Channel of the Target cell that described travelling carriage according to receiving receives, the path loss of calculating between described travelling carriage and the target BS comprises: base station controller deducts the transmission power intensity of the Broadcast Control Channel place carrier frequency of Target cell after the signal strength signal intensity of the Target cell Broadcast Control Channel that described travelling carriage receives, add path-loss difference between described frequency range, obtain the path loss between described travelling carriage and the target BS.
4. an initial power control system is characterized in that, this system comprises: base station controller, base station and travelling carriage, wherein,
Described base station controller is used for when activating the Traffic Channel of Target cell or travelling carriage successful switch during to Target cell, the signal strength signal intensity of the Broadcast Control Channel of the Target cell that the travelling carriage that receiving mobile reports receives, and the signal strength signal intensity of the Target cell Broadcast Control Channel that receives according to the travelling carriage that receives is calculated the path loss between described travelling carriage and the base station, Target cell place; And/or, when the activating service channel or travelling carriage when successfully accessing, obtain the actual emission power of travelling carriage, the uplink signal strength that the base station measurement that the reception base station reports arrives, and the uplink signal strength that arrives according to described base station measurement and the actual emission power intensity of described travelling carriage, calculate the path loss between described travelling carriage and the described base station; According to the transmission power intensity of described path loss with the calling place carrier frequency that distributes, the downstream signal intensity that the prediction travelling carriage receives; According to the downstream signal intensity that described travelling carriage receives, determine that the base station carries out the power level of power emission, informing base station carries out power emission according to described power level;
Described base station controller comprises:
The path loss computing module is used for calculating the path loss between travelling carriage and the base station;
Signal strength signal intensity is calculated module, is used for the path loss that calculates according to described path loss computing module and the transmission power intensity of calling out the place carrier frequency, the downstream signal intensity that the prediction travelling carriage receives;
Power control module is used for calculating the downstream signal intensity that travelling carriage that the module prediction obtains receives according to described signal strength signal intensity, determines that the base station carries out the power level of power emission, and informing base station carries out power emission according to described power level;
This base station controller further comprises:
Broadcast Control Channel signal strength signal intensity receiver module is used for when activating the Traffic Channel of Target cell or travelling carriage successful switch during to Target cell, the signal strength signal intensity of the Broadcast Control Channel of the Target cell that the travelling carriage that receiving mobile reports receives;
The transmission power intensity of the signal strength signal intensity of the Broadcast Control Channel of the Target cell that described path loss computing module receives according to described travelling carriage and the Broadcast Control Channel place carrier frequency of Target cell is calculated the path loss between described travelling carriage and the base station, Target cell place;
And/or this base station controller further comprises:
The transmission power of mobile station acquisition module is used for when the activating service channel or travelling carriage when successfully accessing, and obtains the actual emission power of travelling carriage;
The uplink signal strength receiver module is used for when the activating service channel or travelling carriage when successfully accessing, and receives the uplink signal strength that base station measurement that the base station reports arrives;
The base station measurement that described path loss computing module receives according to described uplink signal strength receiver module to uplink signal strength and the actual emission power intensity of the travelling carriage that obtains of described transmission power of mobile station acquisition module, calculate the path loss between described travelling carriage and the described base station.
5. an initial power control device is characterized in that, this device comprises:
The path loss computing module is used for calculating the path loss between travelling carriage and the base station;
Signal strength signal intensity is calculated module, is used for the path loss that calculates according to described path loss computing module and the transmission power intensity of calling out the place carrier frequency, the downstream signal intensity that the prediction travelling carriage receives;
Power control module is used for calculating the downstream signal intensity that travelling carriage that the module prediction obtains receives according to described signal strength signal intensity, determines that the base station carries out the power level of power emission, and informing base station carries out power emission according to described power level;
This device further comprises:
Broadcast Control Channel signal strength signal intensity receiver module is used for when activating the Traffic Channel of Target cell or travelling carriage successful switch during to Target cell, the signal strength signal intensity of the Broadcast Control Channel of the Target cell that the travelling carriage that receiving mobile reports receives;
The transmission power intensity of the signal strength signal intensity of the Broadcast Control Channel of the Target cell that described path loss computing module receives according to described travelling carriage and the Broadcast Control Channel place carrier frequency of Target cell is calculated the path loss between described travelling carriage and the base station, Target cell place;
And/or this device further comprises:
The transmission power of mobile station acquisition module is used for when the activating service channel or travelling carriage when successfully accessing, and obtains the actual emission power of travelling carriage;
The uplink signal strength receiver module is used for when the activating service channel or travelling carriage when successfully accessing, and receives the uplink signal strength that base station measurement that the base station reports arrives;
The base station measurement that described path loss computing module receives according to described uplink signal strength receiver module to uplink signal strength and the actual emission power intensity of the travelling carriage that obtains of described transmission power of mobile station acquisition module, calculate the path loss between described travelling carriage and the described base station.
6. device as claimed in claim 5 is characterized in that, this device further comprises: path loss difference computing module between frequency range, path-loss difference between the frequency range that is used for calculating described Broadcast Control Channel place carrier frequency and calling out the place carrier frequency;
Path-loss difference between the frequency range that the path loss difference computing module calculates between the transmission power intensity of the signal strength signal intensity of the Target cell Broadcast Control Channel that the travelling carriage that described path loss computing module receives according to described Broadcast Control Channel signal strength signal intensity receiver module receives, the Broadcast Control Channel place carrier frequency of Target cell and described frequency range calculates the path loss between described travelling carriage and the base station, Target cell place.
7. such as claim 5 or 6 described devices, it is characterized in that, described device is arranged in base station controller.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101882042A CN101159459B (en) | 2007-11-09 | 2007-11-09 | Initial power control method, system and device |
| PCT/CN2008/072960 WO2009067892A1 (en) | 2007-11-09 | 2008-11-05 | Base station initial power control method, system and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101882042A CN101159459B (en) | 2007-11-09 | 2007-11-09 | Initial power control method, system and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101159459A CN101159459A (en) | 2008-04-09 |
| CN101159459B true CN101159459B (en) | 2013-02-13 |
Family
ID=39307411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101882042A Expired - Fee Related CN101159459B (en) | 2007-11-09 | 2007-11-09 | Initial power control method, system and device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101159459B (en) |
| WO (1) | WO2009067892A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101159459B (en) * | 2007-11-09 | 2013-02-13 | 华为技术有限公司 | Initial power control method, system and device |
| CN101272173B (en) * | 2008-05-09 | 2012-10-10 | 中兴通讯股份有限公司 | Road loss compensation factor setting method |
| JP5135171B2 (en) * | 2008-11-10 | 2013-01-30 | 株式会社エヌ・ティ・ティ・ドコモ | Radio base station, radio apparatus and radio apparatus control apparatus |
| CN101754336B (en) * | 2008-12-17 | 2012-09-05 | 中兴通讯股份有限公司 | Base station power-saving method and system based on LTE TDD system |
| CN101888689B (en) * | 2009-05-14 | 2013-06-19 | 联芯科技有限公司 | Method and device for determining PRACH (physical random access channel) sending power and method and device for responding to UpPCH (uplink pilot channel) message |
| CN103139886B (en) * | 2011-12-05 | 2018-06-08 | 中兴通讯股份有限公司 | A kind of method and base station controller for controlling transmission power |
| CN102497663B (en) * | 2011-12-13 | 2014-08-13 | 北京邮电大学 | Femtocell power control method and control device |
| CN103781161A (en) * | 2012-10-25 | 2014-05-07 | 中兴通讯股份有限公司 | Method, device and system used for distantly covering base station |
| CN107231680B (en) | 2016-03-23 | 2021-04-30 | 中兴通讯股份有限公司 | Method and device for open-loop power control |
| CN110446237B (en) * | 2018-05-03 | 2022-01-28 | 青岛海信移动通信技术股份有限公司 | Intelligent recommendation method for network frequency band and mobile terminal |
| CN110234157B (en) * | 2019-04-23 | 2023-06-13 | 广州南方卫星导航仪器有限公司 | Self-adaptive control method for data transmission radio station |
| CN112788724A (en) * | 2021-03-08 | 2021-05-11 | 中国人民解放军军事科学院战争研究院 | System for controlling power of base station in mobile network |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6175745B1 (en) * | 1997-12-24 | 2001-01-16 | Telefonaktiebolaget Lm Ericsson | Initial transmit power determination in a radiocommunication system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ255617A (en) * | 1992-09-04 | 1996-11-26 | Ericsson Telefon Ab L M | Tdma digital radio: measuring path loss and setting transmission power accordingly |
| KR20020036093A (en) * | 2000-11-08 | 2002-05-16 | 박종섭 | Power control method between base station and mobile station in the mobile communication system |
| CN101159459B (en) * | 2007-11-09 | 2013-02-13 | 华为技术有限公司 | Initial power control method, system and device |
-
2007
- 2007-11-09 CN CN2007101882042A patent/CN101159459B/en not_active Expired - Fee Related
-
2008
- 2008-11-05 WO PCT/CN2008/072960 patent/WO2009067892A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6175745B1 (en) * | 1997-12-24 | 2001-01-16 | Telefonaktiebolaget Lm Ericsson | Initial transmit power determination in a radiocommunication system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101159459A (en) | 2008-04-09 |
| WO2009067892A1 (en) | 2009-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101159459B (en) | Initial power control method, system and device | |
| CN100421499C (en) | Radio resource control method in mobile communication system, and mobile communication system | |
| US9954590B2 (en) | Methods for efficient beam training and communications apparatus and network control device utilizing the same | |
| CN113163438B (en) | Information reporting method, terminal equipment and network equipment | |
| WO2018082904A1 (en) | Communications device and method | |
| US8509818B2 (en) | Method for suppressing use of a mobile phone and protecting against interference field in an area in a wireless communication network | |
| KR101463548B1 (en) | Wireless communication device capable of efficient radio access technology measurements | |
| CN107040865B (en) | Power control method and equipment in V2X communication | |
| AU2022201231B2 (en) | Data transmission and management for positioning mobile devices | |
| US20210211972A1 (en) | Control of Search and/or Measurement Processes Based on Frequency Range Preference | |
| US20020072371A1 (en) | Method and device for performing handover using location information | |
| WO2008134473A2 (en) | Method and apparatus of measurement mechanism and efficient paging and broadcasting scheme implementation in mbms dedicated cell of lte systems | |
| CN101536585A (en) | Transmission of special neighbor cell lists | |
| US20030096612A1 (en) | Method and apparatus for adaptive location registration in mobile station | |
| CN108347766B (en) | Paging transmission method under uplink mobility, communication station and communication node | |
| CA2661028A1 (en) | A method for load balancing of devices in idle mode | |
| CN113596936B (en) | Method, device, equipment and medium for switching wave beams in satellite communication system | |
| CN116391330A (en) | UE procedure for controlling channel quality measurements in non-terrestrial networks | |
| KR101639042B1 (en) | Data transmission system for determining data transmission power using virtual cell | |
| WO2016184214A1 (en) | Methods for efficient beam training and communications apparatus and network control device utilizing the same | |
| EP2377364B1 (en) | Method and apparatus for operating moving network in a mobile communication system | |
| KR101708928B1 (en) | Method and apparatus for switching a frequency assignment in wireless communicaton system | |
| CN103167567A (en) | Method and device for mobile terminal to switch base stations | |
| US20230403674A1 (en) | Communications device and network infrastructure equipment and methods applying mobility information of infrastructure equipment | |
| US8494562B2 (en) | Method of providing location information in wireless communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20131109 |