CN101909334B - Wireless communication method and system thereof for updating reference channel information - Google Patents
Wireless communication method and system thereof for updating reference channel information Download PDFInfo
- Publication number
- CN101909334B CN101909334B CN2009101078093A CN200910107809A CN101909334B CN 101909334 B CN101909334 B CN 101909334B CN 2009101078093 A CN2009101078093 A CN 2009101078093A CN 200910107809 A CN200910107809 A CN 200910107809A CN 101909334 B CN101909334 B CN 101909334B
- Authority
- CN
- China
- Prior art keywords
- mobile communication
- channel information
- control device
- information
- reference channel
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to wireless communication method and system thereof capable of updating reference channel information. The wireless communication system capable of updating the reference channel information comprises a control device and a plurality of reference information generating devices. The wireless communication range of the control device covers a plurality of regions. The reference information generating devices are respectively arranged in the regions. The reference position information and the reference channel information of the reference information generating devices are respectively returned to the control device. When the control device receives one current position information of a mobile communication device and judges that the current position information corresponds to one current region in the regions, one current reference channel information corresponding to the region is transmitted to the mobile communication device by the control device in real time.
Description
Technical field
The present invention relates to wireless telecommunications, especially, relate to a kind of wireless telecommunication system and How It Works thereof that upgrades present reference channel information by location technology, with the usefulness of improving harrow type receiver (rake receiver) and promote the wireless telecommunications quality.
Background technology
Along with wireless telecommunications science and technology constantly develops, the device for mobile communication with difference in functionality of all kinds, such as mobile phone, personal digital assistant etc. become instrument indispensable in modern's daily life.
Generally speaking; in the transmission channel (channel) of wirelessmobile communication system; often can suffer from multiple access and disturb the problems such as (Multiple Access Interference, MAI) and intersymbol interference (Inter-Symbol Interference, ISI).Wherein, it is because multi-user (multi-user) causes that multiple access disturbs, and intersymbol interference then is that these two kinds of phenomenons all can be so that the communication quality of wirelessmobile communication system thereby reduction because multipath (multi-path) causes.
Be subject to the impact of the phenomenons such as multiple access interference and intersymbol interference for fear of the radio mobile communication quality, common processing mode is to adopt the design of harrow type receiver (rake receiver) in mobile phone at present, to address the above problem.With third generation mobile (3G) demal multitask access (Code-DivisionMultiple Access, CDMA) system is example, harrow type receiver is to utilize the correlation of spreading codes to search the inhibit signal in different paths, and it is carried out the compensation of time and phase place, again these signals are made up at last, to produce last Output rusults.
Please refer to Fig. 1, Fig. 1 is the schematic diagram of common harrow type receiver framework.As shown in Figure 1, at first, when harrow type receiver received signal r (t), harrow type receiver namely can be multiplied by carrier signal cos (2 π f with receiving signal r (t)
0T).Then, harrow type receiver carries out auto-correlation computation so that signal is separated for different inhibit signals again, and by low pass filter (Low-Pass Filter, LPF) with the HFS elimination of the signal fundamental frequency part with stick signal.At last, signal combiner carries out the combination of signal again by common signal combination methods, to produce last Output rusults.
In fact, this signal combination methods can be equal gain combination (Equal Gain Combining, EGC) method, max ratio combined (Maximum Ratio Combining, MRC) method, Selection and Constitute (SelectionCombining, SC) method or other combined method.Wherein, the max ratio combined method is that each path is multiplied by respectively a weighted value; As for the Selection and Constitute rule be by selection mode give up can the impact last Output rusults the path.Yet above-mentioned two kinds of methods all need take correct channel model as the basis, just can obtain preferably Output rusults, so the channel model correctness is very dark for the impact of max ratio combined method and Selection and Constitute method.In addition, the equal gain combination rule be every paths is considered as for the impact of last Output rusults identical, but obviously with true there is any discrepancy.
Please refer to Fig. 2, Fig. 2 is the schematic diagram that primary signal o (t) is sent to harrow type receiver.As shown in Figure 2, primary signal o (t) is launched and is sent to harrow type receiver via transmission channel by conveyer.In actual applications, primary signal o (t) may be subject to the interference such as the reflection of building or other object or refraction in transmission channel.Because primary signal o (t) was subject to the interference of noise n (t) possibly before being sent to harrow type receiver, therefore, the received signal of harrow type receiver is not primary signal o (t) usually, but is subject to the reception signal r (t) after noise n (t) disturbs.From the above, the last Output rusults of harrow type receiver will be subject to the impact of many wireless channel parameters (parameters such as time delay, phase place, power and Path selection).For convenience's sake, the noise in traditional channel model is to be assumed to be additive property white Gauss noise (Additive White Gaussian Noise, AWGN), but this hypothesis does not obviously square with the fact.Therefore; device for mobile communication usually can be further modes such as error correction method (such as the turbine code with powerful error correction capacity (turbo codes)) by trial and error pricing (trial and error) or rear end reduce its bit error rate; not only cause the waste of system resource, the wireless telecommunications quality also is difficult to keep.
Therefore, main purpose of the present invention is to provide a kind of wireless telecommunication system, device for mobile communication and How It Works thereof, to address the above problem.
Summary of the invention
The wireless telecommunication system that the first specific embodiment according to the present invention is a kind of renewable present reference channel information.In this embodiment, this wireless telecommunication system comprises a control device and a plurality of reference information generation device.Wherein, the wireless communication range of this control device has contained a plurality of zones, and these a plurality of reference information generation devices are arranged at respectively in these a plurality of zones.These a plurality of reference information generation devices will be respectively be reported to this control device with separately reference position information and reference channel information.When this control device receives a current position information of a device for mobile communication and judges that this current position information is one in a plurality of zones at present during the zone corresponding to this, this control device in real time will corresponding to this at present a present reference channel information in zone be sent to this device for mobile communication.
The wireless telecommunication system How It Works that the second specific embodiment according to the present invention is a kind of renewable present reference channel information.In this embodiment, this wireless telecommunication system comprises a control device and a plurality of reference information generation device, and the wireless communication range of this control device has contained a plurality of zones and this a plurality of reference information generation devices are arranged at respectively in these a plurality of zones.In the method, at first, these a plurality of reference information generation devices are reported to this control device with separately reference position information and reference channel information respectively.When this control device receives a current position information of a device for mobile communication and judges that this current position information is one in a plurality of zones at present during the zone corresponding to this, this control device in real time will corresponding to this at present a present reference channel information in zone be sent to this device for mobile communication.
The device for mobile communication that the 3rd specific embodiment according to the present invention is a kind of renewable present reference channel information.In this embodiment, this device for mobile communication is positioned at the wireless communication range that a wireless telecommunication system is contained, and this wireless communication range has contained a plurality of zones.This wireless telecommunication system comprises a control device and a plurality of reference information generation device.Wherein, these a plurality of reference information generation devices are arranged at respectively in these a plurality of zones, and these a plurality of reference information generation devices are reported to this control device with separately reference position information and reference channel information respectively.Judge that when this device for mobile communication transmits a current position information to this control device and this control device this current position information is one in a plurality of zones at present during the zone corresponding to this, this device for mobile communication will be in real time receive corresponding to this present present reference channel information in zone from this control device.
In sum, in wireless telecommunication system of the present invention, because the function that is arranged at the reference information generation device of zones of different only is to produce exactly present channel parameter corresponding to zones of different by the trial and error pricing than consumes resources, therefore the channel parameter of user's device for mobile communication corresponding to its region can be provided in real time.Therefore, user's device for mobile communication needn't be carried out the error correction program of trial and error pricing or rear end in order to obtain correct wireless channel model again, thus can significantly save system resource, and effectively promote the wireless telecommunications quality.
Can be further understood by following embodiment and description of drawings about the advantages and spirit of the present invention.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the schematic diagram of common harrow type receiver framework;
Fig. 2 is the schematic diagram that primary signal is sent to harrow type receiver;
Fig. 3 is the schematic diagram according to the wireless telecommunication system of the first specific embodiment of the present invention;
Fig. 4 (A) and Fig. 4 (B) are the schematic diagrames in device for mobile communication enters the wireless communication range that control device contains the time;
Fig. 5 (A) ~ Fig. 5 (C) is device for mobile communication with positioning function schematic diagram when entering in the wireless communication range that control device contains;
Fig. 6 is the flow chart according to the wireless telecommunication system How It Works of the second specific embodiment of the present invention;
Fig. 7 is the functional block diagram according to the device for mobile communication of the 3rd specific embodiment of the present invention.
[primary clustering symbol description]
S10 ~ S20: process step
R (t): signal cos (2 π f0t): carrier signal
Td: time delay device o (t): primary signal
N (t): noise 1,3,4: wireless telecommunication system
10,30,40,8: control device A ~ D: zone
RL1 ~ RL4: reference position information RC1 ~ RC4: reference channel information
2,5: device for mobile communication R: overlapping region
P1, P2: position 7: device for mobile communication
70: transmission/receiver module 72: locating module
74: judge module 76: computing module
11,31: the first reference information generation devices
12,32: the second reference information generation devices
13,33: the three reference information generation devices
14: the four reference information generation devices
Embodiment
Main purpose of the present invention is to propose a kind of wireless telecommunication system, device for mobile communication and How It Works thereof that can upgrade present reference channel information and effective saving system resource and promote the wireless telecommunications quality.The present invention is except can be in order to improving the usefulness of the harrow type receiver in third generation mobile (3G) demal multitask access (CDMA) system, even can be in order to promote any communication quality that needs to estimate the wireless telecommunication system of channel model.
The first specific embodiment according to the present invention is a kind of wireless telecommunication system.Please refer to Fig. 3, Fig. 3 is the schematic diagram of this wireless telecommunication system.As shown in Figure 3, wireless telecommunication system 1 comprises control device 10, the first reference information generation device 11, the second reference information generation device 12, the 3rd reference information generation device 13 and the 4th reference information generation device 14.Wherein, the first reference information generation device 11, the second reference information generation device 12, the 3rd reference information generation device 13 and the 4th reference information generation device 14 are arranged at respectively regional A, regional B, regional C and regional D, and the wireless communication range of the control device 10 of wireless telecommunication system 1 has contained regional A, regional B, regional C and regional D.As shown in Figure 3, regional A, regional B, regional C and regional D form with the construction of honeycomb pattern, but not as limit.
In actual applications, control device 10 can be a radio mobile communication base station, in order to communicate with each other with the device for mobile communication that is encompassed in the wireless communication range.It should be noted that the number of regions that the wireless communication range of the number of the reference information generation device that wireless telecommunication system 1 comprises and control device 10 contains is not limited with four in this example, the demand during according to practical application is decided.
In addition, each reference information generation device only need have the ability of linking up with base station or communication network and get final product, and can be small-sized movable base station (mobile station), but not as limit.In this embodiment, each reference information generation device is on a certain fixed position that is arranged in its corresponding zone fixedly, and each regional range size is relevant with the wireless communication range that its corresponding reference information generation device has, but not as limit.
In this embodiment, the first reference information generation device 11, the second reference information generation device 12, the 3rd reference information generation device 13 and the 4th reference information generation device 14 are not the purposes as general wireless telecommunications, its topmost function is to be undertaken by the trial and error pricing that quite expends calculation resources the calculating of reference channel information, to try to achieve respectively corresponding to the reference channel information of each reference information generation device of zones of different and periodically to carry out the repayment of reference channel information to control device 10.Therefore, in the present invention, user's mobile phone needn't expend huge calculation resources and calculate channel parameters, therefore can effectively alleviate its burden.
In fact, reference channel information can comprise time of delay (delay time), phase place (phase), power (power), arrive at information viewpoint (angle of arrival informat ion), Path selection (pathselection) or other radio channel parameter, decides according to the actual demand of various wireless telecommunication system.
As shown in Figure 3, the first reference information generation device 11, the second reference information generation device 12, the 3rd reference information generation device 13 and the 4th reference information generation device 14 will periodically be repaid separately reference position information RLi ~ RL4 and reference channel information RC1 ~ RC4 to control device 10 at set intervals, are beneficial to the real-time condition that control device 10 can momentarily be grasped each reference information generation device.In actual applications, the time interval that each reference information generation device is repaid can for being the system default value or complying with its actual demand by the user and decide, there is no certain restriction.
Said circumstances not yet enters the interior situation of wireless communication range that control device 10 is contained for user's device for mobile communication.The situation that next, will enter with regard to user's device for mobile communication in the wireless communication range that control device 10 contains is inquired into.
Please refer to Fig. 4 (A) and Fig. 4 (B), Fig. 4 (A) and Fig. 4 (B) are the schematic diagrames in device for mobile communication 2 (user's mobile phone) enters the wireless communication range that control device 10 contains the time.At first, in Fig. 4 (A), in case device for mobile communication 2 enters any when zone among regional A ~ D, represent device for mobile communication 2 and entered the wireless communication range that control device 10 is contained, when so as long as the service centre that device for mobile communication 2 wireless communication services are provided and control device 10 are identical, control device 10 can provide base station to serve to device for mobile communication 2, that is to say, namely can communicate with each other between control device 10 and the device for mobile communication 2.
Shown in Fig. 4 (A), when device for mobile communication 2 and control device 10 are linked up, device for mobile communication 2 will send the current position information of device for mobile communication 2 to control device 10, where grasps in real time device for mobile communication 2 present residing positions in order to control device 10.
In actual applications, no matter be the first reference information generation device 11, the second reference information generation device 12, the current position information that the 3rd reference information generation device 13 and 14 repayment of the 4th reference information generation device are repaid to reference position information or the device for mobile communication 2 of control device 10 all can receive and get from a location system, modal GPS (Global Position System) (Global PositioningSystem for example, GPS), auxiliary global satellite positioning system (Assisted Global Positioning System, AGPS), GLONASS (Global Navigation Satellite System) (GLObal NAvigation Satellite System, GLONASS) or Galileo (Galileo) satellite navigation and location system, but not as limit.
Hold, after control device 10 receives the current position information that device for mobile communication 2 transmits, control device 10 namely can be with current position information and the first reference information generation device 11 of device for mobile communication 2, the second reference information generation device 12, the reference position information of the 3rd reference information generation device 13 and the 4th reference information generation device 14 is compared, to judge position and the first reference information generation device 11 of device for mobile communication 2, the second reference information generation device 12, which device for mobile communication in the 3rd reference information generation device 13 and the 4th reference information generation device 14 is the most approaching, is arranged in which zone of regional A ~ D therefore can learn device for mobile communication 2.
With this example, control device 10 will judge that device for mobile communication 2 is that to be positioned at regional D and its position and the 4th reference information generation device 14 the most approaching.Therefore, shown in Fig. 4 (B), control device 10 will produce a present reference channel information and should send in real time device for mobile communication 2 to by present reference channel information according to the reference channel information of the 4th reference information generation device 14 up-to-date once repayment, so that device for mobile communication 2 can obtain the present reference channel information corresponding to its present regional D of living in real time.
In actual applications, when device for mobile communication 2 received the present reference channel information that control device 10 transmits, device for mobile communication 2 can decide whether accept this present reference channel information in its sole discretion according to the judgment mechanism of itself.For example, the judgment mechanism that device for mobile communication 2 adopts can be whether the bit error rate of this present reference channel information of judging that it receives is lower than a default value, but not as limit.This default value can by user or default, there is no certain restriction.When device for mobile communication 2 found that the bit error rate of this present reference channel information is lower than this default value, device for mobile communication 2 was namely accepted this present reference channel information, and according to this present reference channel information its present channel information is upgraded; Otherwise, when device for mobile communication 2 finds that the bit error rate of this present reference channel information is higher than this default value, device for mobile communication 2 will can not be accepted this present reference channel information, and still adopt traditional trial and error pricing to carry out the computing of optimum channel information, therefore there is no certain restriction.
Because the harrow type receiver of traditional device for mobile communication can reduce its bit error rate by the modes such as error correction (such as the turbine code turbo codes with powerful error correction capacity) of trial and error pricing or rear end usually; if but error correcting code still can't effectively reduce its bit error rate unfortunately; device for mobile communication even can require again control device 10 to retransmit again package one time causes the decline of transmission rate and the waste of system resource.By wireless telecommunication system 1 of the present invention, user's mobile phone (device for mobile communication 2) can directly promptly obtain accurately channel model from the present reference channel information that control device 10 receives according to it, not only speeded the processing speed of harrow type receiver, also can improve because the relatively poor communication quality that inaccurate channel model causes.
In addition, because the harrow type receiver that the device for mobile communication that each manufacturer produces adopts design all is not quite similar, therefore in this embodiment, the first reference information generation device 11, the second reference information generation device 12, the 3rd reference information generation device 13 and the 4th reference information generation device 14 all need to have with device for mobile communication 2 the harrow type receiver design of same types.That is to say, in actual applications, the mobile communication dealer can measure in each wish the various mobile phones with different harrow type receivers designs of place placement of channel information, when user's mobile phone need to obtain reference channel information, base station namely gave corresponding reference channel information according to the model of user's mobile phone.
Above-mentioned example is to consider that user's mobile phone (device for mobile communication 2) has the situation of positioning function, yet, still have on the market the mobile phone of many types not have positioning function at present, therefore can't repay its current position information to base station.Therefore, the situation that next will not have with regard to user's mobile phone positioning function is inquired into.
Please refer to Fig. 5 (A) ~ Fig. 5 (C), Fig. 5 (A) ~ Fig. 5 (C) is device for mobile communication 5 with positioning function schematic diagram when entering in the wireless communication range that control device 30 contains.Shown in Fig. 5 (A), wireless telecommunication system 3 comprises control device 30, the first reference information generation device 31, the second reference information generation device 32 and the 3rd reference information generation device 33.Wherein, the wireless communication range of control device 30 has contained regional A ~ C, and the first reference information generation device 31, the second reference information generation device 32 and the 3rd reference information generation device 33 are to be arranged at respectively in regional A ~ C.In this embodiment, the first reference information generation device 31, the second reference information generation device 32 and the 3rd reference information generation device 33 still can periodically repay separately reference position information and reference channel information to control device 30.
It should be noted that overlapping that the wireless communication range of the control device 40 of another wireless telecommunication system 4 that is positioned at wireless telecommunication system 3 next doors will be with the wireless communication range generating portion of control device 30, overlapping region R is namely shown in Fig. 5 (A).
Shown in Fig. 5 (B), suppose that the device for mobile communication 5 with positioning function enters overlapping region R and is positioned at P1, because although overlapping region R is positioned at the edge of the wireless communication range of control device 30, but still belong in the wireless communication range of control device 30, therefore, device for mobile communication 5 still can be communicated with each other with control device 30.In addition, overlapping region R also belongs in the wireless communication range of control device 40, therefore device for mobile communication 5 also can be communicated with each other with control device 40.
In this embodiment, suppose that device for mobile communication 5 must get well than control device 30 for the reception situation of control device 40, device for mobile communication 5 proposes the requirement of base station handing-over (hand over) possibly, from originally linking up but the relatively poor control device 30 of reception situation is transferred to preferably control device 40 of reception situation.When control device 30 found that device for mobile communication 5 have this base station handing-over phenomenon to occur, control device 30 namely can will directly or after average send device for mobile communication 5 to the reference channel information in the more close zone (for example regional B and regional C) of the control device 40 of wireless telecommunication system 4 among regional A ~ C.When device for mobile communication 5 receives these present reference channel informations, device for mobile communication 5 can be decided in its sole discretion and accept or do not accept these present reference channel informations according to the judgment mechanism (whether the bit error rate of for example judging these present reference channel informations is higher than a default value, but not as limit) of itself.
Then, shown in Fig. 5 (C), suppose that device for mobile communication 5 moves to P2 among Fig. 5 (C) by the P1 among Fig. 5 (B), at this moment, because device for mobile communication 5 is not the edge that is positioned at the wireless communication range of control device 30, becomes stronger so control device 30 will sense the signal of device for mobile communication 5.Under this kind situation, send device for mobile communication 5 to after the reference channel information of the All Ranges (regional A, regional B and regional C) that control device 30 will be contained the wireless communication range of control device 30 is in addition average.By the way, even if user's mobile phone does not have positioning function, base station still can provide the mobile phone of the present reference channel information of summary to the user, user's mobile phone further judges whether to adopt the present reference channel information that base station provides or the preset channel information that adopts this mobile phone to go out by calculation mechanism institute primary Calculation originally in advance according to itself judgment mechanism again, or this mobile phone carries out the computing of channel information more voluntarily, there is no certain restriction.
For example, user's mobile phone can go out a preset channel information by calculation mechanism primary Calculation originally in advance, and calculates the bit error rate of this preset channel information.Then, user's mobile phone calculates the bit error rate of this present reference channel information that base station provides again, and bit error rate that will this present reference channel information and the bit error rate of this preset channel information compare, to determine will to adopt at last this present reference channel information or this preset channel information as the channel information of this mobile phone.
The second specific embodiment according to the present invention is a kind of wireless telecommunication system How It Works.In this embodiment, this wireless telecommunication system comprises a control device and a plurality of reference information generation device, and the wireless communication range of this control device has contained a plurality of zones and this a plurality of reference information generation devices are arranged at respectively in these a plurality of zones.These a plurality of reference information generation devices only need be responsible for providing reference position information and reference channel information separately and be that employing trial and error pricing or turbine code correction method obtain reference channel information separately.Please refer to Fig. 6, Fig. 6 is the flow chart of this wireless telecommunication system How It Works.
As shown in Figure 6, at first, the method execution in step S10, these a plurality of reference information generation devices are reported to this control device with separately reference position information and reference channel information at set intervals.In fact, this reference channel information be with time of delay, phase place, power, to arrive at the wireless channel parameters such as information viewpoint and Path selection relevant.Then, the method execution in step S12, this control device receive a current position information of a device for mobile communication and judge that whether this current position information is corresponding to the arbitrary zone in these a plurality of zones.If it is regional at present corresponding to one in these a plurality of zones that the judged result of step S12 is this current position information, the method execution in step S14, this control device will be sent to this device for mobile communication corresponding to a present reference channel information in this present zone in real time.
When this device for mobile communication received this present reference channel information, the method execution in step S16, this device for mobile communication judged whether to accept this present reference channel information.In actual applications, this device for mobile communication is to judge whether to accept this present reference channel information according to itself judgment mechanism.For example, this judgment mechanism can be whether the bit error rate of judging this present reference channel information is higher than a default value, but not as limit.If the judged result of step S16 is yes, the method execution in step S18, this device for mobile communication is adjusted its present channel information according to this present reference channel information.If the determination result is NO for step S16, the method execution in step S20, this device for mobile communication carries out the computing of channel information according to calculation mechanism originally.
In actual applications, this device for mobile communication also can go out a preset channel information by calculation mechanism primary Calculation originally first, when this device for mobile communication received this present reference channel information, this device for mobile communication calculated respectively the bit error rate of this present reference channel information and this preset channel information and compares.If comparative result is that the bit error rate of this present reference channel information is lower, this device for mobile communication namely adopts this present reference channel information as its channel information; If comparative result is that the bit error rate of this preset channel information is lower, this device for mobile communication namely adopts this preset channel information as its channel information.
The 3rd specific embodiment according to the present invention is a kind of device for mobile communication.In this embodiment, this device for mobile communication is to be positioned at the wireless communication range that a wireless telecommunication system is contained, and this wireless communication range has contained a plurality of zones.This wireless telecommunication system comprises a control device and a plurality of reference information generation device, these a plurality of reference information generation devices are arranged at respectively in these a plurality of zones, and these a plurality of reference information generation devices are reported to this control device with separately reference position information and reference channel information respectively.
Please refer to Fig. 7, Fig. 7 is the functional block diagram of this device for mobile communication.As shown in Figure 7, device for mobile communication 7 comprises transmission/receiver module 70, locating module 72, judge module 74 and computing module 76.Wherein, locating module 72 and judge module 74 are coupled to transmission/receiver module 70, and computing module 76 is coupled to judge module 74.In the time of in device for mobile communication 7 enters the wireless communication range that this wireless telecommunication system contains, its locating module 72 will receive a current position information from a location system.Then, when the transmission/receiver module 70 of device for mobile communication 7 transmitted this current position information to control device 8, control device 8 will judge that whether this current position information is corresponding to the arbitrary zone in these a plurality of zones.
If it is regional at present corresponding to one in these a plurality of zones that the judged result of control device 8 is this current position information, the transmission/receiver module 70 of device for mobile communication 7 will receive corresponding to this present regional present reference channel information from control device 8 in real time.After the transmission/receiver module 70 of device for mobile communication 7 received this present reference channel information, the judge module 74 of device for mobile communication 7 will judge whether to accept this present reference channel information.In actual applications, the judge module 74 of device for mobile communication 7 is to judge whether to accept this present reference channel information according to itself judgment mechanism.For example, this judgment mechanism can be whether the bit error rate of judging this present reference channel information is higher than a default value, but not as limit.If the judged result of judge module 74 is yes, computing module 76 will be adjusted according to this present reference channel information the channel information of device for mobile communication 7 itself.If the determination result is NO for judge module 74, computing module 76 carries out the computing of channel information according to calculation mechanism (for example trial and error pricing or turbine code) originally.
In actual applications, the computing module 76 of device for mobile communication 7 also can go out a preset channel information by calculation mechanism primary Calculation originally first, when transmission/receiver module 70 received this present reference channel information, judge module 74 calculated respectively the bit error rate of this present reference channel information and this preset channel information and compares.If comparative result is that the bit error rate of this present reference channel information is lower, device for mobile communication 7 namely adopts this present reference channel information as its channel information; If comparative result is that the bit error rate of this preset channel information is lower, device for mobile communication 7 namely adopts this preset channel information as its channel information.
In sum, in wireless telecommunication system of the present invention, because the function that is arranged on the reference information generation device of zones of different only is to produce exactly optimum channel parameter corresponding to zones of different by the trial and error pricing than consumes resources, therefore the present channel parameter of user's device for mobile communication corresponding to its region can be provided in real time.Therefore, user's device for mobile communication needn't be carried out the error correction program of trial and error pricing or rear end in order to obtain a better channel parameters again, thus can significantly save system resource, and effectively promote communication quality.
In addition, in present 3G wireless telecommunication system, because all users share identical frequency range, so signal each other all can be considered as noise by the other side, in case when communication quality descended, user's mobile phone certainly will need to improve its transmitting power to keep communication quality.Yet this phenomenon will cause other mobile phone to receive stronger interference, so that user's mobile phone that same base station can be served tails off, thereby causes the density of base station must improve the demand that could satisfy all users.Effectively promote treatment effeciency and communication quality according to wireless telecommunication system of the present invention owing to being got by the fast fetching of better present channel parameters, therefore not only can avoid the phenomenon of above-mentioned vicious circle to occur, also can promote the user for the satisfaction of telecommunications service, and significantly reduce the extra cost of the newly-increased base station of telecommunication operator.
By the detailed description of above optimum specific embodiment, be to wish more to know to describe feature of the present invention and spirit, and be not to come category of the present invention is limited with above-mentioned disclosed optimum specific embodiment.On the contrary, its objective is that hope can contain in the category of claim of being arranged in of various changes and tool equality institute of the present invention wish application.
Claims (18)
1. the wireless telecommunication system of one kind renewable one present reference channel information comprises:
One control device, the wireless communication range of this control device contains a plurality of zones; And
A plurality of reference information generation devices, be separately positioned in these a plurality of zones, in order to respectively separately reference position information and reference channel information are sent to this control device, wherein, when this control device receives a current position information of a device for mobile communication and judges that this current position information is one in a plurality of zones at present during the zone corresponding to this, this control device produces a present reference channel information according to the reference channel information of the up-to-date once repayment of reference information generation device in the present zone in real time and is sent to this device for mobile communication;
Further, these a plurality of reference information generation devices and this device for mobile communication all have the harrow type receiver design of same types.
2. wireless telecommunication system according to claim 1 is characterized in that, wherein this control device is a radio mobile communication base station.
3. wireless telecommunication system according to claim 1, it is characterized in that, reference position information and reference channel information that wherein these a plurality of reference information generation devices at set intervals will be are separately repaid to this control device, and the length of this section period is system default value or is set by the user.
4. wireless telecommunication system according to claim 1 is characterized in that, wherein this reference channel information be with wireless channel parameter in time of delay, phase place, power, arrive at information viewpoint and Path selection is relevant.
5. wireless telecommunication system according to claim 1 is characterized in that, wherein these a plurality of reference information generation devices provide reference position information and reference channel information separately and are that employing trial and error pricing or turbine code correction method obtain reference channel information separately.
6. wireless telecommunication system according to claim 1, it is characterized in that, wherein receive this present reference channel information and judge when accepting this present reference channel information when this device for mobile communication, this device for mobile communication according to should present reference channel information adjustment itself present channel information.
7. wireless telecommunication system according to claim 1 is characterized in that, wherein these a plurality of zones are to form with the construction of honeycomb pattern.
8. wireless telecommunication system according to claim 1 is characterized in that, wherein the reference position information repaid of the reference information generation device in these a plurality of reference information generation devices is to be received and get from a location system by this reference information generation device.
9. wireless telecommunication system according to claim 8, it is characterized in that, wherein this navigation system is the one that is selected from the group that is comprised of a GPS (Global Position System), an auxiliary global satellite positioning system, a GLONASS (Global Navigation Satellite System) or a Galilean satellite navigation positioning system.
10. wireless telecommunication system according to claim 1 is characterized in that, wherein this current position information of this device for mobile communication is to be received and get from a location system by this device for mobile communication.
11. one kind in order to upgrade the wireless communication method of a present reference channel information, this wireless communication method comprises the following step:
A plurality of reference information generation devices are separately positioned in a plurality of zones, and these a plurality of reference information generation devices are sent to a control device with separately reference position information and reference channel information respectively; And
When this control device receives a current position information of a device for mobile communication and judges that this current position information is one in a plurality of zones at present during the zone corresponding to this, this control device produces this present reference channel information according to the reference channel information of the up-to-date once repayment of reference information generation device in the present zone in real time and is sent to this device for mobile communication;
Further, these a plurality of reference information generation devices and this device for mobile communication all have the harrow type receiver design of same types.
12. method according to claim 11, it is characterized in that, wherein this a plurality of with reference to device for mobile communication at set intervals will be separately reference position information and reference channel information repay to this control device, and the length of this section period is system default value or is set by the user.
13. method according to claim 11 is characterized in that, wherein this reference channel information is with time of delay, phase place, the power of wireless channel parameter, arrives at information viewpoint and Path selection is relevant.
14. method according to claim 11 is characterized in that, wherein these a plurality of reference information generation devices provide reference position information and reference channel information separately and are that employing trial and error pricing or turbine code correction method obtain reference channel information separately.
15. method according to claim 11, it is characterized in that, further comprise the following step: when this device for mobile communication receives this present reference channel information and judges when accepting this present reference channel information, this device for mobile communication according to should present reference channel information adjustment itself present channel information.
16. method according to claim 11 is characterized in that, wherein this current position information of the reference position information repaid of these a plurality of reference information generation devices and this device for mobile communication is all from a location system.
17. the wireless telecommunication system of one kind renewable one present reference channel information comprises:
One control device, the wireless communication range of this control device has contained a plurality of zones; And
A plurality of reference information generation devices are arranged at respectively in these a plurality of zones, and these a plurality of reference information generation devices are respectively to this control device repayment reference position information and reference channel information separately;
Wherein, one device for mobile communication is to be positioned at the wireless communication range that this wireless telecommunication system is contained, and this control device is sent to this device for mobile communication with a present reference channel information in real time according to the communication situation between itself and this device for mobile communication;
Further, these a plurality of reference information generation devices and this device for mobile communication all have the harrow type receiver design of same types;
Further, if base station handing-over phenomenon occurs in this device for mobile communication, this control device judges that this device for mobile communication is arranged near the edge at least one present zone in these a plurality of zones, and produces this present reference channel information and be sent to this device for mobile communication according to the reference channel information corresponding to this at least one present zone.
18. the wireless telecommunication system of one kind renewable one present reference channel information comprises:
One control device, the wireless communication range of this control device has contained a plurality of zones; And
A plurality of reference information generation devices are arranged at respectively in these a plurality of zones, and these a plurality of reference information generation devices are respectively to this control device repayment reference position information and reference channel information separately;
Wherein, one device for mobile communication is to be positioned at the wireless communication range that this wireless telecommunication system is contained, and this control device is sent to this device for mobile communication with a present reference channel information in real time according to the communication situation between itself and this device for mobile communication;
Further, these a plurality of reference information generation devices and this device for mobile communication all have the harrow type receiver design of same types;
Further, if the reception situation between this control device and this device for mobile communication when base station handing-over phenomenon occurs in this device for mobile communication good, this control device judges that this device for mobile communication is to be positioned within these a plurality of zones, and produces this present reference channel information and be sent to this device for mobile communication according to the reference channel information corresponding to these a plurality of zones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101078093A CN101909334B (en) | 2009-06-02 | 2009-06-02 | Wireless communication method and system thereof for updating reference channel information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101078093A CN101909334B (en) | 2009-06-02 | 2009-06-02 | Wireless communication method and system thereof for updating reference channel information |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101909334A CN101909334A (en) | 2010-12-08 |
| CN101909334B true CN101909334B (en) | 2013-03-27 |
Family
ID=43264619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101078093A Expired - Fee Related CN101909334B (en) | 2009-06-02 | 2009-06-02 | Wireless communication method and system thereof for updating reference channel information |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101909334B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1863192A1 (en) * | 2005-03-30 | 2007-12-05 | Matsushita Electric Industrial Co., Ltd. | Limitation feedback method for multiantenna system, channel parameter generating method, and wireless receiver |
| CN101132256A (en) * | 2006-08-21 | 2008-02-27 | 三星电子株式会社 | Apparatus and method for transmitting/receiving feedback information in a multi-user mimo system, and system thereof |
| CN101400139A (en) * | 2008-10-28 | 2009-04-01 | 北京创毅视讯科技有限公司 | Data transmission method and base station in multiple base station collaboration system |
-
2009
- 2009-06-02 CN CN2009101078093A patent/CN101909334B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1863192A1 (en) * | 2005-03-30 | 2007-12-05 | Matsushita Electric Industrial Co., Ltd. | Limitation feedback method for multiantenna system, channel parameter generating method, and wireless receiver |
| CN101132256A (en) * | 2006-08-21 | 2008-02-27 | 三星电子株式会社 | Apparatus and method for transmitting/receiving feedback information in a multi-user mimo system, and system thereof |
| CN101400139A (en) * | 2008-10-28 | 2009-04-01 | 北京创毅视讯科技有限公司 | Data transmission method and base station in multiple base station collaboration system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101909334A (en) | 2010-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1921325B (en) | System and method for received signal prediction in wireless communications system | |
| CN100474786C (en) | System and method for adjusting combiner weights using an adaptive algorithm in a wireless communications system | |
| US8843181B2 (en) | Sensor uses in communication systems | |
| CN1951058B (en) | Method and apparatus for received signal quality estimation | |
| CN101213758A (en) | Radio communication apparatus | |
| CN1708966B (en) | Methods for channel estimation in the presence of transmit beamforming | |
| EP1722499A4 (en) | Receiver apparatus, receiving method, and wireless communication system | |
| KR100302942B1 (en) | CD receiving device and method | |
| CN101013916B (en) | Method and apparatus for implementing reception of diversity with intelligent antenna | |
| CN100492936C (en) | Variable diversity transmission in a radio communications system based on characteristics of a received signal | |
| TWI400980B (en) | Wireless communication method for updating reference channel information and system thereof | |
| CN101909334B (en) | Wireless communication method and system thereof for updating reference channel information | |
| CN103475395A (en) | Antenna correction method, device and system | |
| US6219344B1 (en) | Pilot aided traffic channel estimation for CDMA cellular systems | |
| CN101874365A (en) | Wireless communication device and wireless communication method | |
| CN1613195B (en) | Rake receiver with individual finger compensator(s) and related method | |
| US20060114973A1 (en) | Method and system for estimating the speed of a mobile device in a network | |
| CN1266957C (en) | Communication system, and signal preprocessing device and signal receiving device thereof | |
| CN101405960A (en) | Radio communication apparatus, receiving system selection method, and receiving system selection program | |
| CN105577298A (en) | Adaptive phase detection method and system | |
| EP2919403B1 (en) | Multi-path combination method, device and mobile communication system | |
| KR20050087378A (en) | Advanced calibration method and device for adaptive smart antenna in wireless communication system | |
| CN117692052A (en) | Access selection method and device for multiple ground users in low-orbit satellite network | |
| JPH112651A (en) | Estimation device of signal power ratio | |
| WO2005032181A1 (en) | Dynamic allocation of resources |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20190602 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |